CN117340396B - Efficient bottoming filling welding equipment and welding process thereof - Google Patents
Efficient bottoming filling welding equipment and welding process thereof Download PDFInfo
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- CN117340396B CN117340396B CN202311462979.XA CN202311462979A CN117340396B CN 117340396 B CN117340396 B CN 117340396B CN 202311462979 A CN202311462979 A CN 202311462979A CN 117340396 B CN117340396 B CN 117340396B
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- 238000003466 welding Methods 0.000 title claims abstract description 250
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 77
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 21
- 239000010937 tungsten Substances 0.000 claims abstract description 21
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 230000037452 priming Effects 0.000 claims description 39
- 239000011261 inert gas Substances 0.000 claims description 13
- 238000013519 translation Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000001931 thermography Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009931 harmful effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention belongs to the technical field of multi-layer welding, and particularly relates to efficient bottoming filling welding equipment and a welding process thereof, wherein the efficient bottoming filling welding equipment comprises a track supporting mechanism, a driving mechanism, a welding gun positioning mechanism, a bottoming welding gun, a filling welding gun and a preheating mechanism; the tungsten electrodes of the backing welding gun and the filling welding gun can swing along the vertical direction of the circular seam under the control of the welding gun position correcting mechanism; the backing welding gun and the filling welding gun are clamped by the welding gun clamping seat, and the ceramic nozzle extends into the groove of the circular seam so as to facilitate the swing of the tungsten electrode; the arc-shaped preheating seat of the preheating mechanism can heat the circumferential seam. According to the scheme, the bottoming welding gun and the filling welding gun are sequentially arranged on the outer side of the same circular seam of the circular workpiece, so that the quality of filling welding can be influenced after the welding bottom is oxidized, and filling welding can be preheated by utilizing waste heat of bottoming welding; the preheating mechanism not only can preheat the circumferential seam of the round workpiece, but also can preheat welding wires.
Description
Technical Field
The invention belongs to the technical field of multi-layer welding, and particularly relates to efficient bottoming filling welding equipment and a welding process thereof.
Background
Tungsten inert gas welding (TIG welding) for short. In the prior multilayer welding technology, the TIG welding technology is often used, when the circular seam of the circular workpiece is subjected to multilayer welding in the rotary welding process, the welding processes such as bottoming, filling, sealing and the like are often required to be carried out, the steps are often completed in different welding places, the circular workpiece is required to be repeatedly disassembled during the welding process, a great amount of time is wasted, and the welding efficiency is seriously affected.
Disclosure of Invention
In order to solve the problem of low welding efficiency in the existing multilayer welding technology, the scheme provides high-efficiency priming filling welding equipment and a welding process thereof.
The technical scheme adopted by the invention is as follows:
a high-efficiency priming filling welding device comprises a track supporting mechanism, a driving mechanism, a welding gun position correcting mechanism, a priming welding gun, a filling welding gun and a preheating mechanism;
the track supporting mechanism is used for horizontally placing the round workpiece; the driving mechanism is arranged at the outer side of the track supporting mechanism and used for controlling the rotation of the round workpiece so as to facilitate the welding of the circular seam on the round workpiece; a bottoming station and a filling station are respectively arranged on two opposite sides of the top point of the circular seam; the priming station and the filling station are arranged in sequence along the rotation direction of the round workpiece;
the priming welding gun is arranged at the priming station, and the filling welding gun is arranged at the filling station; the backing welding gun and the filling welding gun are connected to the welding gun position correcting mechanisms respectively, and tungsten electrodes of the backing welding gun and the filling welding gun can swing along the vertical direction of the circular seam under the control of the welding gun position correcting mechanisms;
the welding gun positioning mechanism comprises a welding gun clamping seat, a torsion spring, a front support, a cross arm, a rear support, a first cylinder and a second cylinder; the second cylinder is vertically arranged and can horizontally move, and piston rods of the first cylinder and the second cylinder are relatively fixed; the rear support is relatively fixed with the piston of the first cylinder; the cross arms are parallel to each other, are rotatably connected between the front support and the rear support and can rotate in a horizontal plane, and first torsion springs are arranged at the joints of the cross arms, the front support and the rear support; the welding gun clamping seat is rotationally connected to the front support, and a second torsion spring is arranged at the joint between the welding gun clamping seat and the front support; the backing welding gun and the filling welding gun are clamped by the welding gun clamping seat, and when the ceramic nozzle of the backing welding gun or the filling welding gun is stretched into the groove of the circular seam by the second cylinder, the first cylinder drives the backing welding gun or the filling welding gun to move in the horizontal direction, so that the tungsten electrode swings;
the preheating mechanism comprises an arc preheating seat, and the arc preheating seats are arranged on the front sides of the bottoming welding gun and the filling welding gun along the rotating direction of the round workpiece; an electric heater is arranged on the inner arc side of the arc-shaped preheating seat, and the circular seam is heated when the electric heater covers the outer ring side of the circular seam.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the welding wire feeding device comprises two arc-shaped preheating seats, wherein the two arc-shaped preheating seats are respectively provided with a wire feeding notch along the rotation direction of a circular workpiece, the wire feeding notches are positioned at the right outer sides of circular seams, wire guiding wheels are arranged at the wire feeding notches, welding wires can be guided into grooves of the circular seams through the wire guiding wheels, and the welding wires can be delivered to tungsten electrodes of a backing welding gun or a filling welding gun along the grooves.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: still be provided with interior camera and interior jet assembly in priming station department, interior camera and interior jet assembly stretch into the inboard to circular work piece by interior mechanism that stretches into, interior camera and interior jet assembly all aim at the welded part of girth and are used for thermal imaging collection and inert gas blowout respectively.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the inward extending mechanism comprises an inward extending translation seat, an inward extending column, an inward extending lifting seat, an inward extending cross arm, a rotary seat and an extending arm; the inward-extending translation seat is movably arranged on the ground, and the inward-extending column is vertically connected to the inward-extending translation seat; the inner extending lifting seat is connected to the inner extending column in a sliding manner; the inner stretching cross arm is horizontally arranged, one end of the inner stretching cross arm is fixedly connected with the inner stretching lifting seat, the other end of the inner stretching cross arm is rotationally connected with the rotary seat, and the rotary seat can rotate in a vertical plane; the stretching arm comprises a triangular air bag, an upper air pipe, a lower air pipe and a soft sleeve; one end of the soft sleeve is connected with the rotary table, and the other end of the soft sleeve is connected with the inner camera and the inner air injection assembly; a plurality of triangular air bags are arranged in the soft sleeve; the hypotenuses of two adjacent triangle-shaped air bags are mutually attached, the bottom edges are respectively attached to the upper pipe wall and the lower pipe wall of the soft sleeve, and the adjacent triangle-shaped air bags are respectively connected with the upper air pipe and the lower air pipe so as to control the inflation of the alternate triangle-shaped air bags and enable the extending arms to swing upwards or downwards.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the inner jet assembly comprises a jet motor, a jet seat and a jet head; the jet motor is fixed at the other end of the swing arm, the jet seat is L-shaped and is arranged on a rotating shaft of the jet motor, the jet head is arranged on the jet seat and deflects left and right along with the jet seat, and the jet head is communicated with an inert gas source so as to jet inert gas.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: a base is arranged on the ground of the installation position of the efficient priming welding equipment, and a first track, a second track and a third track which are parallel to each other are arranged on the base; the track supporting mechanism is movably arranged on the second track, and welding gun positioning frames are respectively arranged on the first track and the third track; the two welding gun positioning mechanisms are respectively arranged on the two welding gun positioning frames.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the track supporting mechanism comprises an arc-shaped bracket, a supporting column, a vehicle body, a traveling motor, wheels and a second rack; the inner arc vehicle of the arc bracket is provided with a plurality of riding wheels which are detachably connected to the upper part of the vehicle body through supporting posts, and the wheels are arranged at the bottom of the vehicle body and are in rolling fit with the second track; the second racks are arranged between the two second rails, the walking motor is fixed at the bottom of the vehicle body, and a gear connected to the rotating shaft of the walking motor is meshed with the second racks; and a positioning hydraulic cylinder is arranged on the outer side of the second rail and is arranged on the base and used for jacking up the vehicle body so as to realize positioning of the vehicle body.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the two opposite sides of the second track are respectively provided with a driving mechanism, and the driving mechanism comprises a driving hydraulic cylinder, a driving rotary seat, a driving rotary arm, a driving motor and a driving rotary wheel; the driving rotary seat is fixed on the base, one end of the driving rotary arm is rotationally connected with the driving rotary seat, the other end of the driving rotary arm is rotationally connected with the driving rotary wheel, and two ends of the driving rotary hydraulic cylinder are rotationally connected with the driving rotary arm and the base respectively so as to control the driving rotary wheel to be close to or far away from the round workpiece.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: a welding gun positioning frame is arranged on the first rail and the second rail, and comprises a moving seat, a horizontal sliding motor, a horizontal sliding seat, a lifting seat, a positioning upright post and a horizontal arm; the movable seat is slidably arranged on the first track or the second track; the positioning upright post is erected on the movable seat, a horizontal arm is fixedly connected to the lifting seat, and the horizontal sliding seat is slidably connected to the lower side of the horizontal arm and is used for installing a second air cylinder.
As a supplementary design of the high-efficiency priming welding equipment, the following components are provided: the welding process comprises the following steps:
step S1: placing the round workpiece on the track supporting mechanism horizontally and rotating clockwise or anticlockwise;
step S2: along the rotation direction of the round workpiece, preheating the front sides of the priming station and the filling station by using an arc preheating seat;
step S3: and extending the tungsten electrode of the backing welding gun and the tungsten electrode of the filling welding gun into the same annular seam, and performing backing welding on the annular seam and filling welding.
The beneficial effects of the invention are as follows:
1. according to the scheme, the bottoming welding gun and the filling welding gun are arranged on the outer side of the same circular seam of the circular workpiece in sequence, so that the quality of filling welding can be influenced after the welding bottom is oxidized, and filling welding can be preheated by utilizing waste heat of bottoming welding;
2. the preheating mechanism in the scheme not only can preheat the circumferential seam of the round workpiece, but also can preheat the welding wire, and meanwhile, the welding wire can be pressed into the groove of the welding seam through the godet wheel, so that the groove can be utilized to limit the welding wire, and the phenomenon that the end part of the welding wire shakes to influence the welding quality is avoided;
3. inert gas can be sprayed to welding spots of prime welding between the inner air jets arranged in the scheme, so that air is isolated, and the harmful effects of the air on a tungsten electrode, a molten pool and an adjacent heat affected zone are prevented; meanwhile, the inner camera is arranged to collect infrared images, so that the welding point position of the welding gun head is judged, and tracking of the welding point position is realized.
Drawings
In order to more clearly illustrate the embodiments of the present solution or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic diagram of a high-efficiency priming welding apparatus in this embodiment;
FIG. 2 is a block diagram at a priming station;
FIG. 3 is a block diagram at a filling station;
FIG. 4 is a mating block diagram of the track support mechanism and the drive mechanism;
FIG. 5 is a block diagram of the inner reach mechanism;
FIG. 6 is a diagram of the mating of the arm with the inner camera and inner jet assembly.
In the figure: 1-a circular workpiece; 101-circular seams; 2-a base; 21-a first track; 22-a second track; 23-a third track; 24-a hydraulic cylinder; 3-a track support mechanism; 31-arc brackets; 32-supporting columns; 33-a vehicle body; 34-a walking motor; 35-wheels; 36-a second rack; 4-a rotation driving mechanism; 41-driving a hydraulic cylinder; 42-driving a rotating seat; 43-driving the arm; 44-a drive motor; 45-driving a rotating wheel; 5-a preheating mechanism; 51-a horizontal hydraulic cylinder; 52-an arc-shaped preheating seat; 521-a wire feeding notch; 522-godet wheel; 53-L-shaped rack; 6-a welding gun positioning frame; 61-moving the seat; 62-a horizontal slide motor; 63-a horizontal slide; 64-lifting seat; 65-horizontal arm; 66-positioning the upright post; 7-a welding gun position correcting mechanism; 71-a welding gun holder; 72-a second torsion spring; 73-front support; 74-cross arm; 75-a rear support; 76—a first cylinder; 77-a second cylinder; 8-backing welding gun; 9-filling a welding gun; 10-welding wires; 11-an inner camera; 12-an internal jet assembly; 121-jet motor; 122-jet seats; 123-jet heads; 13-an inward extending mechanism; 131-inward extending translation seat; 132-inward extending column; 133-an inward extending lifting seat; 134-an inward extending cross arm; 135-a rotary base; 136-swinging arms; 1361-triangular balloon; 1362-upper airway; 1363-lower airway; 1364-soft cannula.
Detailed Description
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and the described embodiments are only some embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments of the present embodiment are all within the protection scope of the present solution.
Example 1
As shown in fig. 1 to 3, the present embodiment designs a high-efficiency priming welding apparatus, which includes a track supporting mechanism 3, a driving mechanism 4, a welding gun positioning mechanism 7, a priming welding gun 8, a priming welding gun 9, a preheating mechanism 5, and the like.
The track supporting mechanism 3 is used for horizontally placing the round workpiece 1; the track supporting mechanism 3 can adopt the existing track car structure, so that the track supporting mechanism is convenient to move at the position of the round workpiece 1, and when one round workpiece 1 is welded, the round workpiece 1 can be quickly replaced by the track car through alternate driving in of the track car, so that batch welding operation is facilitated.
The driving mechanism 4 is arranged on the outer side of the track supporting mechanism 3 and is used for controlling the rotation of the round workpiece 1 so as to facilitate the welding of the circular seam 101 on the round workpiece 1, the driving wheel 45 of the driving mechanism 4 can be attached to the peripheral wall of the round workpiece 1, and when the driving wheel 45 rotates, the friction force of the driving wheel 45 can drive the round workpiece 1 to rotate.
A priming station and a filling station are respectively arranged on two opposite sides of the vertex of the circular seam 101; the priming station and the filling station are arranged in sequence along the rotation direction of the round workpiece 1; thus, when the round workpiece 1 rotates, the circumferential seam 101 can sequentially rotate to pass through the priming station and the filling station, so that priming welding and filling welding are sequentially completed. The priming welding gun 8 is arranged at the priming station, and the filling welding gun 9 is arranged at the filling station; the backing welding gun 8 and the filling welding gun 9 are connected to the welding gun position correcting mechanisms 7 respectively, and tungsten electrodes of the backing welding gun 8 and the filling welding gun 9 can swing along the vertical direction of the circular seam 101 under the control of the welding gun position correcting mechanisms 7. Under the control of the corresponding welding gun aligning mechanism 7, the bottoming welding gun 8 and the filling welding gun 9 can swing along the vertical direction of the circular seam 101, so that the welding paths of the bottoming welding gun 8 and the filling welding gun 9 are zigzag in the rotating process of the circular workpiece 1, and the welding quality is improved.
The welding gun positioning mechanism 7 comprises a welding gun clamping seat 71, a torsion spring, a front support 73, a cross arm 74, a rear support 75, a first air cylinder 76, a second air cylinder 77 and the like; the second air cylinder 77 is vertically arranged and can horizontally move, and the piston rods of the first air cylinder 76 and the second air cylinder 77 are relatively fixed; the rear support 75 is relatively fixed with the piston of the first cylinder 76; a plurality of cross arms 74 which are parallel to each other are rotatably connected between the front support 73 and the rear support 75 and can rotate in a horizontal plane, and first torsion springs are arranged at the joints of the cross arms 74 and the front support 73 and the rear support 75; the welding gun holder 71 is rotatably connected to the front support 73, and a second torsion spring 72 is arranged at the joint between the front support and the front support; the backing welding gun 8 and the filling welding gun 9 are clamped by a welding gun clamping seat 71, and when a ceramic nozzle of the backing welding gun 8 or the filling welding gun 9 extends into a groove of a circular seam 101 by a second cylinder 77, the first cylinder 76 drives the backing welding gun 8 or the filling welding gun 9 to move in the horizontal direction, so that a tungsten electrode swings; when the two first cylinders 76 drive the backing welding gun 8 and the filling welding gun 9 to reciprocate in the horizontal direction, the ceramic nozzles of the backing welding gun 8 and the filling welding gun 9 are limited by the groove of the circular seam 101, so that the backing welding gun 8 or the filling welding gun 9 deflects, and the tungsten electrode reciprocates in the direction perpendicular to the circular seam 101, and the purpose of zigzag welding is achieved. Simultaneously, the backing welding and the filling welding are sequentially carried out on the same circular seam 101, and the temperature of the welding point position of the filling welding can be ensured by utilizing the waste heat generated by the backing welding, so that the welding effect and the welding efficiency are improved, and meanwhile, the phenomenon that the filling welding is influenced due to the oxidation of the welding seam generated by the backing welding is avoided.
The preheating mechanism 5 comprises an arc-shaped preheating seat 52, and the arc-shaped preheating seats 52 are arranged on the front sides of the bottoming welding gun 8 and the filling welding gun 9 along the rotation direction of the round workpiece 1; an electric heater is arranged on the inner arc side of the arc-shaped preheating seat 52, and the electric heater heats the annular seam 101 when the electric heater covers the outer ring side of the annular seam 101. Before the part to be welded on the circumferential seam 101 rotates to a priming station or a filling station, the part to be welded on the circumferential seam 101 is preheated by the arc-shaped preheating seat 52, so that the quality and the welding efficiency after welding are improved.
A wire feeding notch 521 is arranged at the rear side of the two arc-shaped preheating bases 52 along the rotation direction of the circular workpiece 1, the wire feeding notch 521 is positioned at the right outer side of the circular seam 101, a wire guiding wheel 522 is arranged at the wire feeding notch 521, and the welding wire 10 can be guided into a groove of the circular seam 101 through the wire guiding wheel 522 and delivered to the tungsten electrode of the backing welding gun 8 or the filling welding gun 9 along the groove. By utilizing the design of the wire feeding notch 521, the welding wire 10 can be introduced into the inner side of the arc preheating seat 52, so that the welding wire 10 is preheated, and meanwhile, the welding wire 10 is conveniently introduced into the groove of the circular seam 101, so that the shaking of the welding wire 10 is reduced.
The inner camera 11 and the inner jet assembly 12 are further arranged at the priming station, the inner camera 11 and the inner jet assembly 12 extend into the inner side of the round workpiece 1 from the inner extending mechanism 13, and the inner camera 11 and the inner jet assembly 12 are aligned to the welding part of the circular seam 101 and are respectively used for thermal imaging acquisition and inert gas jet. The inner camera 11 performs infrared image acquisition so as to judge the welding point position of the welding gun head and realize the tracking of the welding point position, thereby facilitating the inner jet assembly 12 to jet inert gas, isolating air and preventing the harmful effects on tungsten electrodes, molten pools and adjacent heat affected zones.
The welding process comprises the following steps:
step S1: placing the round workpiece 1 on the rail supporting mechanism 3 horizontally and rotating clockwise or counterclockwise;
step S2: the front sides of the priming station and the filling station are preheated by the arc-shaped preheating seat 52 along the rotation direction of the round workpiece 1;
step S3: the tungsten electrode of the backing welding gun 8 and the tungsten electrode of the filling welding gun 9 extend into the same circular seam 101, and the circular seam 101 is firstly subjected to backing welding and then filled welding.
Example 2
On the basis of the structure of embodiment 1, as shown in fig. 4, a base 2 is provided on the ground at the installation position of the high-efficiency underfilling welding apparatus, and a first rail 21, a second rail 22, and a third rail 23, which are parallel to each other, are provided on the base 2; the track supporting mechanism 3 is movably arranged on the second track 22, and the welding gun positioning frames 6 are respectively arranged on the first track 21 and the third track 23; the two welding gun positioning mechanisms 7 are respectively arranged on the two welding gun positioning frames 6.
The track supporting mechanism 3 comprises an arc-shaped bracket 31, a support column 32, a vehicle body 33, a traveling motor 34, wheels 35, a second rack 36 and other parts; the inner arc vehicle of the arc bracket 31 is provided with a plurality of riding wheels and is detachably connected above the vehicle body 33 through a supporting column 32, and wheels 35 are arranged at the bottom of the vehicle body 33 and are in rolling fit with the second track 22; the second racks 36 are arranged between the two second rails 22, the walking motor 34 is fixed at the bottom of the vehicle body 33, and a gear connected to the rotating shaft of the walking motor is meshed with the second racks 36; a positioning hydraulic cylinder 24 is provided on the outer side of the second rail 22, and the positioning hydraulic cylinder 24 is provided on the base 2 and is used for jacking up the vehicle body 33 to realize positioning of the vehicle body 33. After the car body 33 is driven by the traveling motor 34 to move to a designated position, the car body 33 is jacked up by the positioning hydraulic cylinder 24, so that the position of the car body 33 is fixed, and after welding is completed, the positioning hydraulic cylinder 24 is contracted, and the car body 33 is driven to move along the second rail 22, so that the welding of the next round workpiece 1 is facilitated.
The two opposite sides of the second track 22 are respectively provided with a rotation driving mechanism 4, wherein the rotation driving mechanism 4 comprises a rotation driving hydraulic cylinder 41, a rotation driving seat 42, a rotation driving arm 43, a rotation driving motor 44 and a rotation driving wheel 45; the driving rotary seat 42 is fixed on the base 2, one end of the driving rotary arm 43 is rotationally connected with the driving rotary seat 42, the other end of the driving rotary arm is rotationally connected with the driving rotary wheel 45, and two ends of the driving rotary hydraulic cylinder 41 are rotationally connected with the driving rotary arm 43 and the base 2 respectively so as to control the driving rotary wheel 45 to be close to or far away from the round workpiece 1. When the driving hydraulic cylinder 41 is contracted, the driving arm 43 rotates in a direction approaching to the circular workpiece 1, so that the driving wheel 45 can abut against the peripheral wall of the circular workpiece 1, and the driving motor 44 is used for driving the driving wheel 45 to drive the circular workpiece 1 to rotate.
A welding gun positioning frame 6 is arranged on each of the first rail 21 and the second rail 22, and the welding gun positioning frame 6 comprises a movable seat 61, a horizontal sliding motor 62, a horizontal sliding seat 63, a lifting seat 64, a positioning upright post 66 and a horizontal arm 65; the movable seat 61 is slidably arranged on the first track 21 or the second track 22; the positioning upright post 66 is erected on the movable seat 61, a horizontal arm 65 is fixedly connected to the lifting seat 64, and the horizontal sliding seat 63 is slidably connected to the lower side of the horizontal arm 65 and is used for mounting a second air cylinder 77. The horizontal sliding seat 63 can be lifted up and down along with the lifting seat 64 and can also horizontally move along the horizontal arm 65, so that the prepared position of the welding gun before welding is conveniently controlled.
Example 3
Based on the structure of embodiment 1 or embodiment 2, as shown in fig. 5 and 6, the inward extending mechanism 13 includes an inward extending translation seat 131, an inward extending column 132, an inward extending lifting seat 133, an inward extending cross arm 134, a rotary seat 135 and an extending arm 136; the inward-extending translation seat 131 is movably arranged on the ground, and the inward-extending column 132 is vertically connected to the inward-extending translation seat 131; the inner extending lifting seat 133 is slidably connected to the inner extending column 132; the inner extension cross arm 134 is horizontally arranged, one end of the inner extension cross arm is fixedly connected with the inner extension lifting seat 133, the other end of the inner extension cross arm is rotatably connected with the rotary seat 135, and the rotary seat 135 can rotate in a vertical plane. The inner stretching lifting seat 133 can move up and down, so as to drive the inner stretching cross arm 134, the rotary seat 135, the stretching arm 136 and other parts to move up and down, thereby being convenient for keeping the same height of the stretching arm 136 and the end opening of the circular workpiece 1, or removing the inner stretching cross arm 134 to avoid shielding when the vehicle body 33 is moved, and the inner stretching translation seat 131 can be arranged on the third rail 23 and horizontally move along the third rail 23, thereby realizing the movement of the stretching arm 136 along the axial direction of the circular workpiece 1, and realizing the insertion action of the stretching arm 136 into the circular workpiece 1.
The arm 136 includes a triangular balloon 1361, an upper trachea 1362, a lower trachea 1363 and a soft sleeve 1364; the soft sleeve 1364 is square-tube-shaped, one end of the soft sleeve 1364 is connected with the rotary table, and the other end is connected with the inner camera 11 and the inner air injection assembly 12; a plurality of triangular air bags 1361 are arranged in the soft sleeve 1364, the triangular air bags 1361 are in a triangular prism shape, the hypotenuses of two adjacent triangular air bags 1361 are mutually attached, the bottom edges are respectively attached to the upper pipe wall and the lower pipe wall of the soft sleeve 1364, and the corresponding edges of the adjacent triangular air bags 1361 are respectively connected with the upper air pipe 1362 and the lower air pipe 1363 so as to control the alternate triangular air bags 1361 to be inflated, so that the swinging arms 136 swing upwards or downwards. When upper air tube 1362 inflates triangular air bag 1361 and lower air tube 1363 deflates triangular air bag 1361, soft sleeve 1364 can be bent upward, so that inner camera 11 and inner jet assembly 12 move upward; conversely, when lower air tube 1363 inflates triangular air bag 1361 and upper air tube 1362 deflates triangular air bag 1361, soft sleeve 1364 can be caused to bend downward, thereby causing inner camera 11 and inner jet assembly 12 to move downward.
The inner jet assembly 12 includes a jet motor 121, a jet mount 122, and a jet head 123; the jet motor 121 is fixed at the other end of the swing arm 136, the jet seat 122 is L-shaped and is mounted on a rotating shaft of the jet motor 121, the jet head 123 is mounted on the jet seat 122 and deflects left and right along with the jet seat 122, and the jet head 123 is communicated with an inert gas source to spray inert gas. The jet seat 122 can rotate along the circumferential direction of the circular workpiece 1, so that when the horizontal cylinder pushes out or retracts the welding gun head, the direction of the jet head 123 is rotated in real time, the alignment of the jet head 123 to the welding spot position is ensured, and when the welding seam deflects in the horizontal direction, the rotating position of the rotary seat 135 is controlled.
The main controller is electrically connected with the inner camera 11 and the jet motor 121 of the inner jet assembly 12, so as to control the jet direction of inert gas according to the welding position acquired by the inner camera 11, and realize tracking jet. The main controller can adopt an industrial personal computer or a PLC controller.
The above examples are presented for the purpose of illustration only and are not intended to be limiting of the embodiments; it is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present technology.
Claims (10)
1. The utility model provides a high-efficient packing welding equipment that takes a foundation, its characterized in that: comprises a track supporting mechanism (3), a driving mechanism (4), a welding gun position correcting mechanism (7), a bottoming welding gun (8), a filling welding gun (9) and a preheating mechanism (5);
the track supporting mechanism (3) is used for horizontally placing the round workpiece (1); the driving mechanism (4) is arranged at the outer side of the track supporting mechanism (3) and is used for controlling the rotation of the round workpiece (1) so as to facilitate the welding of the circular seam (101) on the round workpiece (1); a bottoming station and a filling station are respectively arranged on two opposite sides of the vertex of the circular seam (101); the priming station and the filling station are arranged in sequence along the rotation direction of the round workpiece (1);
the priming welding gun (8) is arranged at the priming station, and the filling welding gun (9) is arranged at the filling station; the bottoming welding gun (8) and the filling welding gun (9) are connected to the welding gun position correcting mechanisms (7) respectively, and tungsten electrodes of the bottoming welding gun (8) and the filling welding gun (9) can swing along the vertical direction of the circular seam (101) under the control of the welding gun position correcting mechanisms (7);
the welding gun positioning mechanism (7) comprises a welding gun clamping seat (71), a torsion spring, a front support (73), a cross arm (74), a rear support (75), a first air cylinder (76) and a second air cylinder (77); the second air cylinder (77) is vertically arranged and can horizontally move, and the piston rods of the first air cylinder (76) and the second air cylinder (77) are relatively fixed; the rear support (75) is relatively fixed with the piston of the first cylinder (76); a plurality of cross arms (74) which are parallel to each other are rotatably connected between the front support (73) and the rear support (75) and can rotate in a horizontal plane, and first torsion springs are arranged at the joints of the cross arms (74) and the front support (73) and the rear support (75); the welding gun clamping seat (71) is rotationally connected to the front support (73), and a second torsion spring (72) is arranged at the joint between the front support and the front support; the backing welding gun (8) and the filling welding gun (9) are clamped by a welding gun clamping seat (71), and when a second air cylinder (77) stretches a ceramic nozzle of the backing welding gun (8) or the filling welding gun (9) into a groove of a circular seam (101), the first air cylinder (76) drives the backing welding gun (8) or the filling welding gun (9) to move in the horizontal direction, so that a tungsten electrode swings;
the preheating mechanism (5) comprises an arc-shaped preheating seat (52), and the arc-shaped preheating seats (52) are arranged on the front sides of the bottoming welding gun (8) and the filling welding gun (9) along the rotating direction of the round workpiece (1); an electric heater is arranged on the inner arc side of the arc-shaped preheating seat (52), and the electric heater heats the annular seam (101) when the electric heater covers the outer ring side of the annular seam (101).
2. The efficient underfill welding apparatus of claim 1, wherein: the welding wire feeding device comprises two arc-shaped preheating seats (52), wherein wire feeding notches (521) are formed in the rear sides of the two arc-shaped preheating seats along the rotation direction of a circular workpiece (1), the wire feeding notches (521) are located on the right outer sides of a circular seam (101), wire guiding wheels (522) are arranged at the wire feeding notches (521), welding wires (10) can be led into grooves of the circular seam (101) through the wire guiding wheels (522), and the welding wires can be delivered to tungsten electrodes of a backing welding gun (8) or a filling welding gun (9) along the grooves.
3. The high efficiency underfill welding apparatus of claim 1 or 2, wherein: still be provided with interior camera (11) and interior jet-propelled subassembly (12) in priming station department, interior camera (11) and interior jet-propelled subassembly (12) stretch into the inboard to circular work piece (1) by interior stretching into mechanism (13), interior camera (11) and interior jet-propelled subassembly (12) all aim at the welded part of girth (101) and are used for thermal imaging collection and inert gas blowout respectively.
4. A high efficiency underfill welding apparatus in accordance with claim 3, wherein: the inward extending mechanism (13) comprises an inward extending translation seat (131), an inward extending column (132), an inward extending lifting seat (133), an inward extending cross arm (134), a rotary seat (135) and an extending arm (136); the inward-extending translation seat (131) is movably arranged on the ground, and the inward-extending column (132) is vertically connected to the inward-extending translation seat (131); the inner extending lifting seat (133) is connected to the inner extending column (132) in a sliding manner; the inward extending cross arm (134) is horizontally arranged, one end of the inward extending cross arm is fixedly connected with the inward extending lifting seat (133), the other end of the inward extending cross arm is rotationally connected with the rotary seat (135), and the rotary seat (135) can rotate in a vertical plane; the swinging arm (136) comprises a triangular air bag (1361), an upper air pipe (1362), a lower air pipe (1363) and a soft sleeve (1364); one end of the soft sleeve (1364) is connected with the rotary table, and the other end of the soft sleeve is connected with the inner camera (11) and the inner air injection assembly (12); a plurality of triangular air bags (1361) are arranged in the soft sleeve (1364); hypotenuses of two adjacent triangular air bags (1361) are mutually attached, bottom edges are respectively attached to an upper pipe wall and a lower pipe wall of a soft sleeve (1364), and the adjacent triangular air bags (1361) are respectively connected with an upper air pipe (1362) and a lower air pipe (1363) so as to control the alternate triangular air bags (1361) to be inflated, so that the swing arm (136) swings upwards or downwards.
5. The efficient underfill welding apparatus of claim 4, wherein: the inner jet assembly (12) comprises a jet motor (121), a jet seat (122) and a jet head (123); the jet motor (121) is fixed at the other end of the swing arm (136), the jet seat (122) is L-shaped and is arranged on a rotating shaft of the jet motor (121), the jet head (123) is arranged on the jet seat (122) and deflects left and right along with the jet seat (122), and the jet head (123) is communicated with an inert gas source so as to jet inert gas.
6. The high efficiency underfill welding apparatus of claim 1 or 2 or 4 or 5, wherein: a base (2) is arranged on the ground of the installation position of the efficient priming welding equipment, and a first track (21), a second track (22) and a third track (23) which are parallel to each other are arranged on the base (2); the track supporting mechanism (3) is movably arranged on the second track (22), and welding gun positioning frames (6) are respectively arranged on the first track (21) and the third track (23); the two welding gun positioning mechanisms (7) are respectively arranged on the two welding gun positioning frames (6).
7. The efficient underfill welding apparatus of claim 6, wherein: the track supporting mechanism (3) comprises an arc-shaped bracket (31), a support column (32), a vehicle body (33), a traveling motor (34), wheels (35) and a second rack (36); the inner arc vehicle of the arc-shaped bracket (31) is provided with a plurality of riding wheels and is detachably connected above the vehicle body (33) through a supporting column (32), and wheels (35) are arranged at the bottom of the vehicle body (33) and are in rolling fit with the second track (22); the second racks (36) are arranged between the two second rails (22), the walking motor (34) is fixed at the bottom of the vehicle body (33), and a gear connected with the rotating shaft of the walking motor is meshed with the second racks (36); a positioning hydraulic cylinder (24) is arranged on the outer side of the second rail (22), and the positioning hydraulic cylinder (24) is arranged on the base (2) and is used for jacking up the vehicle body (33) so as to realize the positioning of the vehicle body (33).
8. The efficient underfill welding apparatus of claim 7, wherein: two opposite sides of the second track (22) are respectively provided with a driving mechanism (4), wherein the driving mechanism (4) comprises a driving hydraulic cylinder (41), a driving rotary seat (42), a driving rotary arm (43), a driving motor (44) and a driving rotary wheel (45); the driving rotary seat (42) is fixed on the base (2), one end of the driving rotary arm (43) is rotationally connected with the driving rotary seat (42), the other end of the driving rotary arm is rotationally connected with the driving rotary wheel (45), and two ends of the driving rotary hydraulic cylinder (41) are rotationally connected with the driving rotary arm (43) and the base (2) respectively so as to control the driving rotary wheel (45) to be close to or far away from the round workpiece (1).
9. The efficient underfill welding apparatus of claim 6, wherein: a welding gun positioning frame (6) is arranged on the first track (21) and the second track (22), and the welding gun positioning frame (6) comprises a movable seat (61), a horizontal sliding motor (62), a horizontal sliding seat (63), a lifting seat (64), a positioning upright post (66) and a horizontal arm (65); the movable seat (61) is slidably arranged on the first track (21) or the second track (22); the positioning upright post (66) is erected on the movable seat (61), the lifting seat (64) is fixedly connected with the horizontal arm (65), and the horizontal sliding seat (63) is slidably connected to the lower side of the horizontal arm (65) and used for installing the second air cylinder (77).
10. A high-efficiency priming filling welding process is characterized in that: using the high efficiency underfill welding apparatus of claim 1, a welding process comprising the steps of:
step S1: the horizontal placing rail supporting mechanism (3) of the round workpiece (1) rotates clockwise or anticlockwise;
step S2: along the rotation direction of the round workpiece (1), the front sides of the priming station and the filling station are preheated by utilizing an arc-shaped preheating seat (52);
step S3: the tungsten electrode of the backing welding gun (8) and the tungsten electrode of the filling welding gun (9) are extended into the same circular seam (101), and the circular seam (101) is firstly subjected to backing welding and then filled welding.
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| CN108161183A (en) * | 2017-11-08 | 2018-06-15 | 上海锅炉厂有限公司 | A kind of container longitudinal joint of 1G downhand positions or circumferential weld composite tungsten electrode inert gas-shielded arc welding welding procedure |
| KR20190108916A (en) * | 2018-03-16 | 2019-09-25 | 현대로템 주식회사 | Stud Welding Gun with Preheating Function |
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