CN1714978A - Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam - Google Patents
Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam Download PDFInfo
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- CN1714978A CN1714978A CN 200410025591 CN200410025591A CN1714978A CN 1714978 A CN1714978 A CN 1714978A CN 200410025591 CN200410025591 CN 200410025591 CN 200410025591 A CN200410025591 A CN 200410025591A CN 1714978 A CN1714978 A CN 1714978A
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Abstract
The automatic argon arc welding and narrow gas submerged arc welding process for circular pipe header seam features the first horizontal and vertical welding with immobile workpiece and using automatic cold welding TIG wire until completing over one third of circle; the subsequent welding in the other two thirds of circle with automatically rotating welding roller frame; and the performing in the identical site of the annular seam assembling and the welding. The welding apparatus for the said technological process consists of roller device and welding frame bogie, and the welding frame bogie on some tracks parallel to roller frame tracks is movable. The present invention has the advantages of automatic operation, raised welding quality, etc.
Description
Technical field
The present invention relates to a kind of Collection Box Circumferential Weld Argonaut Welding and Narrow Gap Submerged Arc Welding Procedure and Apparatus, can be used for collecting the welding of case body butt joint circumferential weld, and have the welding function of collection case body and circumferential welds such as dome head, flush end lid, elbow and threeway, belong to station boiler circumferential seams of header automatic soldering technique technical field.
Background technology
Under situation about being becoming tight present domestic supply of electric power day, in order to change the nervous situation of supply of electric power, satisfy the needs of the continuous development of industrial production and the needs of people's lives, domestic each province, the city is enlarging and newly-built many power plants in succession all, so the demand to station boiler constantly increases, along with station boiler to big capacity, the direction of high parameter develops, serviceability to material is had higher requirement, the boiler header wall thickness is also increasing, material and the welding material kind used are also increasingly sophisticated, requirement for welding quality is also more and more higher, its solder technology level and equipment in the welding technique field of station boiler parts at present, the solder technology that collects case comparatively speaking is comparatively backward, becomes the bottle neck of raising labour productivity and increasing output, in the solder technology of boiler header, except that circumferential seams of header adopted submerged-arc welding (SAW), all the other all adopted manual electric arc welding (SMAW) to weld.Even circumferential weld adopts submerged-arc welding (SAW), also to adopt manual argon arc welding (TIG) and manual electric arc welding (SMAW) bottoming earlier, though this technology can satisfy the welding production requirement of collection case substantially, but exist operation easier big, welding quality is subjected to artificial factor, adaptive is poor, welder's labour intensity height, problem such as production efficiency is low.
Summary of the invention
The objective of the invention is to invent a kind of raising mechanization and automatization level, the Collection Box Circumferential Weld Argonaut Welding and Narrow Gap Submerged Arc Welding Procedure and Apparatus of raising labour productivity.
For realizing above purpose, technical scheme of the present invention provides a kind of circumferential seams of header argonaut welding and narrow-clearance submerged arc welding connects technology, it is characterized in that, adopts welding automatically, and its technology is:
One. collection case weld preheating temperature≤300 ℃, will collect case and be placed on two groups of turning rolls, the unfitness of butt joint of adjusting two collection case bevel for weldings is to glacing flatness best and collection case body;
Two. the collection case center of circle is detected
(1) with two orthogonal Y-axis work coordinate system range finding laser sensors of argonaut welding head, the laser detection point of X-axis work coordinate system range finding laser sensor, determines collection case body relative coordinate system and collection case body central coordinate of circle;
(2) collection case body radius and the pipe thickness parameter that sets according to original computer just can calculate the relative coordinate origin position that collects the case body center of circle automatically.
Three. collection case body argonaut welding (TIG) backing welding
(1) collection case body is motionless, and the argonaut welding head is according to the parameter of setting and calculate the relative coordinate origin position that collects the case body center of circle automatically, automatically in the location, position that collects 300 ° in case;
(2) the welding torch angle of rotation argonaut welding head makes the welding torch angle perpendicular to collection case body cylindrical circular arc tangential line;
When (3) welding, adopt numerical control linkage and electric arc AVC control function, welding torch is done the motion of constant speed circular arc tangential line around collection case body all the time, and along with the whole change in location around collection case body of welding torch, the rotation of welding torch angle is to keep and the entad motion of collection case body center of circle do all the time;
The welding position of (4) argonaut welding (TIG) is to hocket in upright, downhand position, after waiting to collect the total arc length 1/3 of collection case body circular arc that case body backing welding is welded to setting, promptly when the position of 60 ° in collection case, the stop motion of argonaut welding (TIG) head, when upright, mean place argonaut welding (TIG) backing welding,, can set ten sections different welding parameters according to diverse location to the welding of 1/3 arc length, guarantee the shaping and the through welding of root run, satisfy the requirement of the nondestructive inspection of root run.
(5) this moment, the welding roll device began to rotate the rotation of drive collection case body, finished the backing welding of all the other 2/3 arc length of collection case body, and according to setting, can guarantee certain scrap (bridge) amount.
Four. the automatic filament narrow-clearance submerged arc welding of collection case body
(1) behind collection case body argonaut welding (TIG) backing welding, makes filament narrow-clearance submerged arc welding (NG-SAW) head facing to collection case body the rotation of welding operation frame transverse arm, adopt filament narrow-clearance submerged arc welding (NG-SAW) to weld appropriate circumferential seams of header.During filament narrow-clearance submerged arc welding (NG-SAW) weldering, can set the welding road number of every layer of weld seam, and in welding process, after finishing one weld seam, head rotates conducting rod automatically, adjust the welding wire angle and realize row road automatically, can finish the welding job of circumferential seams of header automatically according to setting this welding machine of welding parameter.
Use the required equipment of these technologies, it is characterized in that, by roller devices, welding operation frame ground car is formed, welding operation frame ground car is placed on the track with the turning rolls parallel track, can move according to the position of circumferential seams of header, described welding operation frame ground car is by the argonaut welding head, X line line slideway, welding operation frame transverse arm, crosshead lifting worm speed reducer, drive sprocket, chain, portable man-machine interface control cabinet, two cross electric carriages, filament narrow-clearance submerged arc welding head, the operation stand, slew gear, crosshead walking decelerator, the crosshead walking mechanism, the crosshead track, transverse arm moves decelerator, the source of welding current, electric cabinet is formed, X line line slideway places on the welding operation frame transverse arm, welding operation frame transverse arm places in the operation stand, vertical with the operation stand, welding operation frame transverse arm can be around operation stand rotation, welding operation frame transverse arm two ends are equipped with two cross electric carriages respectively, a cross electric carriage is provided with the argonaut welding head, another cross electric carriage is provided with filament narrow-clearance submerged arc welding head, the argonaut welding head, filament narrow-clearance submerged arc welding head can be along X line line slideway move left and right, portable man-machine interface control cabinet places between argonaut welding head and the operation stand by the pipe connection, pipe drives portable man-machine interface control cabinet can be around operation stand rotation, portable man-machine interface control cabinet is rotatable around pipe, crosshead lifting worm speed reducer, drive sprocket, chain places operation stand top, crosshead lifting worm speed reducer connects drive sprocket and chain, chain connects welding operation frame transverse arm, crosshead lifting worm speed reducer drive sprocket and chain can drive welding operation frame transverse arm and move up and down along the operation stand, operation stand bottom is connected with the crosshead walking mechanism by slew gear, crosshead walking decelerator places on the crosshead walking mechanism, be connected with slew gear, the bottom of crosshead walking mechanism is equipped with the crosshead track, transverse arm moves the back that decelerator places the operation stand, the source of welding current, electric cabinet places the front and back side of crosshead walking mechanism respectively, the source of welding current respectively with the argonaut welding head, crosshead lifting worm speed reducer, portable man-machine interface control cabinet, filament narrow-clearance submerged arc welding head, crosshead walking decelerator, transverse arm moves decelerator and connects.
The present invention adopts circumferential weld to assemble not tack welding by hand, during collection case body backing welding, workpiece is motionless, and the automatic cold silk TIG backing welding that employing is flat, entad move in the vertical position of welding, after waiting to collect case body backing welding and being welded to arc length 〉=1/3 circular arc, turning rolls rotates automatically again, finishes the TIG backing welding of all the other 2/3 circular arcs.The assembling of circumferential seams of header, root backing welding and cosmetic welding all adopt on same station and carry out, having changed in the past, the circumferential seams of header dress welds location-plate or weld tack weld in groove, workpiece comes and goes the unsafe factor that handling brings to different stations, not only save the non-cutting time of collection case assembling, and improved the effective rate of utilization in place between the collection boxcar.Reduce the welding quality that has influence on circumferential seams of header owing to human factor, raise labour productivity.
Advantage of the present invention is to improve the automation and the mechanization level of boiler header girth welding, improves the welding quality of circumferential seams of header, alleviates welder's labour intensity, raises labour productivity.
Description of drawings:
Fig. 1 is the welding equipment structural representation;
Fig. 2 is a welding operation frame ground car side view;
Fig. 3 is the roller devices structural representation;
Fig. 4 is an argonaut welding handpiece structure schematic diagram;
Fig. 5 is a filament narrow-clearance submerged arc welding handpiece structure schematic diagram.
The specific embodiment:
As Fig. 1, shown in 2, be the welding equipment structural representation, by roller devices 1, welding operation frame ground car 2 is formed, welding operation frame ground car 2 is placed on the track with turning rolls 1 parallel track, can move according to the position of circumferential seams of header, described welding operation frame ground car 2 is by argonaut welding head 3, X line line slideway 4, welding operation frame transverse arm 5, crosshead lifting worm speed reducer 6, drive sprocket 7, chain 8, portable man-machine interface control cabinet 9, two cross electric carriages 10,31, filament narrow-clearance submerged arc welding head 11, operation stand 13, slew gear 14, crosshead walking decelerator 15, crosshead walking mechanism 16, crosshead track 17, transverse arm moves decelerator 18, the source of welding current 19, electric cabinet 20 is formed.
As shown in Figure 3, be the roller devices structural representation, described roller devices 1 is by turning rolls lifting decelerator 21, turning rolls walking mechanism 22, turning rolls 23, turning rolls transverse moving mechanism 24, roller 25 is formed, turning rolls transverse moving mechanism 24 is installed above the turning rolls 23, can move laterally along turning rolls 23, turning rolls walking mechanism 22 is installed on below the turning rolls 23, the side that turning rolls lifting decelerator 21 is installed turning rolls 23, can drive turning rolls 23 moves up and down, roller 25 places on the turning rolls transverse moving mechanism 24, roller 25 is made up of active and driven two rollers, the return idler frame can be done horizontal fine setting, turning rolls walking mechanism 22 places roller 25 1 sides, can drive roller 25 and rotate.
As shown in Figure 4, be argonaut welding handpiece structure schematic diagram, described argonaut welding head 3 is by welding torch 26, follow the tracks of DC speed-reducing 27, Z shaft mechanical tracking means 28, Y-axis work coordinate system range finding laser sensor 29, X-axis work coordinate system range finding laser sensor 30, cross electric carriage 31, Y-axis servomotor 32, wire-feed motor 33, the horizontal shift servo motor 34 of X-axis, wire reel 35 is formed, following the tracks of DC speed-reducing 27 is installed on the welding torch 26, can drive welding torch 26 tilted directions moves around, Z shaft mechanical tracking means 28 is connected with welding torch 26, can drive welding torch 26 vertical direction moves up and down, be used for collecting surely automatically the Y-axis work coordinate system range finding laser sensor 29 in the case center of circle, X-axis work coordinate system range finding laser sensor 30 places on the welding torch 26, cross electric carriage 31 is installed an end of welding operation frame transverse arm 5, the lower end is connected with welding torch 26, upper end and Y-axis servomotor 32, wire-feed motor 33 connects, the horizontal shift servo motor 34 of X-axis, wire reel 35 places a side of cross electric carriage 31, and the welding wire of wire reel 35 is connected with welding torch 26 by wire-feed motor 33.
As shown in Figure 5, for the described filament narrow-clearance submerged arc welding of filament narrow-clearance submerged arc welding handpiece structure schematic diagram head 11 by submerged-arc welding wire 36, solder flux case 37, cross electric carriage 10, narrow gap welding square 38, welding wire SERVO CONTROL swing mechanism 39, flux collection system 40, welding bead tracking probe 41 is formed, submerged-arc welding wire 36 places on the welding operation frame transverse arm 5, welding wire on the submerged-arc welding wire 36 is connected with narrow gap welding square 38, narrow gap welding square 38 is connected with cross electric carriage 10, welding wire SERVO CONTROL swing mechanism 39 is installed on the narrow gap welding square 38, can drive 38 swings of narrow gap welding square, solder flux case 37 places the upper end of cross electric carriage 10, be connected with welding operation frame transverse arm 5 by connecting plate, flux collection system 40 places one side of narrow gap welding square 38, be connected with solder flux case 37, welding bead tracking probe 41 places on the narrow gap welding square 38.
X line line slideway 4 is installed on the welding operation frame transverse arm 5, welding operation frame transverse arm 5 is installed in the operation stand 13, vertical with operation stand 13, welding operation frame transverse arm 5 can be around operation stand 13 rotations, welding operation frame transverse arm 5 two ends are installed two cross electric carriage 10 and cross electric carriages 31 that are provided with argonaut welding head 3 of being provided with filament narrow-clearance submerged arc welding head 11 respectively, argonaut welding head 3, filament narrow-clearance submerged arc welding head 11 can be along X line line slideway 4 move left and right, portable man-machine interface control cabinet 9 connects by pipe, be installed between argonaut welding head 3 and the operation stand 13, pipe drives portable man-machine interface control cabinet 9 can be around operation stand 13 rotations, portable man-machine interface control cabinet 9 is rotatable around pipe, crosshead lifting worm speed reducer 6, drive sprocket 7, chain 8 places operation stand 13 tops, crosshead lifting worm speed reducer 6 connects drive sprocket 7 and chain 8, chain 8 connects welding operation frame transverse arm 5, crosshead lifting worm speed reducer 6 drive sprockets 7 and chain 8 can drive welding operation frame transverse arm 5 and move up and down along operation stand 13, operation stand 13 bottoms are connected with crosshead walking mechanism 16 by slew gear 14, crosshead walking decelerator 15 is installed on the crosshead walking mechanism 16, be connected with slew gear 14, the fitting operation frame rail road, bottom 17 of crosshead walking mechanism 16, transverse arm moves the back that decelerator 18 is installed in operation stand 13, the source of welding current 19, electric cabinet 20 is installed on the front and back side of crosshead walking mechanism 16 respectively, and the source of welding current 19 connects argonaut welding head 3 respectively, crosshead lifting worm speed reducer 6, portable man-machine interface control cabinet 9, filament narrow-clearance submerged arc welding head 11, crosshead walking decelerator 15, transverse arm moves decelerator 18.
Embodiment:
Collection case important technological parameters during welding
The collection case diameter scope of application: Φ 219-838mm
The thick scope of application of collection tank wall: the 16-120mm collection case length scope of application: individual tubes:
1-12m; Postwelding length overall: max.25m
Collection box material: carbon steel, steel alloy and stainless steel
Weld preheating temperature :≤300 ℃
The slope type of circumferential seams of header:
Adopt narrow gap U type groove, the bevel angle scope: 2～5 °, root R 6, root face 2mm, do not stay the gap; Also can adapt to the common double double V-groove.
Gage of wire:
Argonaut welding (TIG) welding wire: Φ 1.0～1.2mm
Filament narrow-clearance submerged arc welding (NG-SAW) welding wire: Φ 1.6～2.0mm
Common submerged-arc welding (SAW) welding wire: Φ 3.0～4.0mm
Circumferential seams of header argonaut welding+narrow-clearance submerged arc welding connects technology:
One. collection case 42 weld preheating temperature≤300 ℃, will collect case and be placed on two groups of turning rolls 25, the unfitnesses of butt joint of adjusting two collection case bevel for weldings are to the best and collect the glacing flatness of case body 42;
Two. the collection case center of circle is detected
(1) with two orthogonal Y-axis work coordinate system range finding laser sensors 29 of argonaut welding head 3, the laser detection point of X-axis work coordinate system range finding laser sensor 30, determines collection case body 42 relative coordinate systems and collection case body central coordinate of circle;
(2) collection case body 42 radiuses and the pipe thickness parameter that sets according to original computer just can calculate the relative coordinate origin position that collects case body 42 centers of circle automatically.
Three. collection case body 42 argonaut weldings (TIG) backing welding
(1) collection case body 42 is motionless, and argonaut welding head 3 is according to the parameter of setting and calculate the relative coordinate origin position that collects case body 42 centers of circle automatically, automatically in the location, position that collects 300 ° in case;
(2) welding torch 26 angles of rotation argonaut welding head 3 make welding torch 26 angles perpendicular to collection case body 42 cylindrical circular arc tangential lines;
When (3) welding, adopt numerical control linkage and electric arc AVC control function, welding torch 26 is done the motion of constant speed circular arc tangential line around collection case body 42 all the time, and along with welding torch 26 whole change in location around collection case body 42, the rotation of welding torch 26 angles is to keep and the entad motion of collection case body center of circle do all the time;
The welding position of (4) argonaut welding (TIG) is to hocket in upright, downhand position, after waiting to collect the total arc length 1/3 of collection case body 42 circular arcs that case body 42 backing weldings are welded to setting, promptly when the position of 60 ° in collection case, 3 stop motions of argonaut welding (TIG) head, when upright, mean place argonaut welding (TIG) backing welding, can be according to diverse location to the welding of 1/3 arc length, can set ten sections different welding parameters, guarantee the shaping and the through welding of root run, satisfy the requirement of the nondestructive inspection of root run.
(5) welding roll device 1 begins to rotate 42 rotations of drive collection case body at this moment, finishes the backing welding of all the other 2/3 arc length that collect case body 42, and according to setting, can guarantee certain scrap (bridge) amount.When upright, mean place argonaut welding (TIG) backing welding, can set ten sections different welding parameters according to 1/3 arc length welding position, guarantee the shaping and the through welding of root run, satisfy the requirement of the nondestructive inspection of root run.
Four. collection case body 42 automatic filament narrow-clearance submerged arc weldings
Behind collection case body 42 argonaut weldings (TIG) backing welding, make filament narrow-clearance submerged arc welding (NG-SAW) head 11 facing to collection case body 42 5 rotations of welding operation frame transverse arm, adopt filament narrow-clearance submerged arc welding (NG-SAW) to weld appropriate circumferential seams of header.During filament narrow-clearance submerged arc welding (NG-SAW) weldering, can set the welding road number of every layer of weld seam, and in welding process, after finishing one weld seam, head rotates conducting rod automatically, adjust the welding wire angle and realize row road automatically, can finish the welding job of circumferential seams of header automatically according to setting this welding machine of welding parameter.
The automatic filament narrow-clearance submerged arc welding of collection case body, can also adapt to the welding of common double double V-groove, can after argonaut welding (TIG) bottoming, adopt filament narrow-clearance submerged arc welding (NG-SAW) transition which floor welds, and then it be appropriate to use 12 welderings of common submerged-arc welding (SAW) machine instead.At the problems such as axial float of collection case, be equipped with the groove tracking system on the equipment, guarantee that the welding overall process is in the system controlled state, the narrow gap welding of satisfying the collection case connects requirement.
Claims (7)
1. circumferential seams of header argonaut welding and narrow-clearance submerged arc welding connect technology, it is characterized in that, adopt welding automatically, and its technology is:
One. collection case (42) weld preheating temperature≤300 ℃, will collect case and be placed on two groups of turning rolls (25), the unfitness of butt joint of adjusting two collection case bevel for weldings is to glacing flatness best and collection case body (42);
Two. the collection case center of circle is detected
(1) with two orthogonal Y-axis work coordinate system range finding laser sensors (29) of argonaut welding head (3), the laser detection point of X-axis work coordinate system range finding laser sensor (30), determines collection case body (42) relative coordinate system and collection case body central coordinate of circle;
(2) collection case body (42) radius and the pipe thickness parameter that sets according to original computer just can calculate the relative coordinate origin position that collects case body (42) center of circle automatically.
Three. collection case body (42) argonaut welding (TIG) backing welding
(1) collection case body (42) is motionless, and argonaut welding head (3) is according to the parameter of setting and calculate the relative coordinate origin position that collects case body (42) center of circle automatically, automatically in the location, position that collects 300 ° in case;
(2) welding torch (26) angle of rotation argonaut welding head (3) makes welding torch (26) angle perpendicular to collection case body (42) cylindrical circular arc tangential line;
When (3) welding, adopt numerical control linkage and electric arc AVC control function, welding torch (26) is done the motion of constant speed circular arc tangential line around collection case body (42) all the time, along with welding torch (26) eventually around the change in location of collection case body (42), the rotation of welding torch (26) angle is to keep doing entad motion with the collection case body center of circle all the time;
The welding position of (4) argonaut welding (TIG) is to hocket in upright, downhand position, after waiting to collect the total arc length 1/3 of collection case body (42) circular arc that case body (42) backing welding is welded to setting, promptly when the position of 60 ° in collection case, argonaut welding (TIG) head (3) stop motion, when upright, mean place argonaut welding (TIG) backing welding, according to diverse location to the welding of 1/3 arc length, can set ten sections different welding parameters, guarantee the shaping and the through welding of root run, satisfy the requirement of the nondestructive inspection of root run.
(5) welding roll device this moment (1) begins to rotate drive collection case body (42) rotation, finishes the backing welding of all the other 2/3 arc length of collection case body (42), and according to setting, can guarantee certain scrap (bridge) amount.
Four. collection case body (42) is the filament narrow-clearance submerged arc welding automatically
(1) behind collection case body (42) argonaut welding (TIG) backing welding, make filament narrow-clearance submerged arc welding (NG-SAW) head (11) facing to collection case body (42) welding operation frame transverse arm (5) rotation, adopt filament narrow-clearance submerged arc welding (NG-SAW) to weld appropriate circumferential seams of header.During filament narrow-clearance submerged arc welding (NG-SAW) weldering, can set the welding road number of every layer of weld seam, and in welding process, after finishing one weld seam, head rotates conducting rod automatically, adjust the welding wire angle and realize row road automatically, can finish the welding job of circumferential seams of header automatically according to setting this welding machine of welding parameter.
2. circumferential seams of header argonaut welding according to claim 1 and narrow-clearance submerged arc welding connect technology, it is characterized in that, the automatic filament narrow-clearance submerged arc welding of described collection case body, can also adapt to the welding of common double double V-groove, can be after argonaut welding (TIG) bottoming, adopt filament narrow-clearance submerged arc welding (NG-SAW) transition which floor welds, and then adopt common submerged-arc welding (SAW) machine (12) weldering appropriate.At the problems such as axial float of collection case, be equipped with the groove tracking system on the equipment, guarantee that the welding overall process is in the system controlled state, the narrow gap welding of satisfying the collection case connects requirement.
3. use the required equipment of these technologies, it is characterized in that, by roller devices (1), welding operation frame ground car (2) is formed, welding operation frame ground car (2) is placed on the track with turning rolls (1) parallel track, can move according to the position of circumferential seams of header, described welding operation frame ground car (2) is by argonaut welding head (3), X line line slideway (4), welding operation frame transverse arm (5), crosshead lifting worm speed reducer (6), drive sprocket (7), chain (8), portable man-machine interface control cabinet (9), two cross electric carriages (10), (31), filament narrow-clearance submerged arc welding head (11), operation stand (13), slew gear (14), crosshead walking decelerator (15), crosshead walking mechanism (16), crosshead track (17), transverse arm moves decelerator (18), the source of welding current (19), electric cabinet (20) is formed, X line line slideway (4) places on the welding operation frame transverse arm (5), welding operation frame transverse arm (5) places in the operation stand (13), vertical with operation stand (13), welding operation frame transverse arm (5) can be around operation stand (13) rotation, welding operation frame transverse arm (5) two ends are equipped with two cross electric carriages (10) respectively, (31), a cross electric carriage (31) is provided with argonaut welding head (3), another cross electric carriage (10) is provided with filament narrow-clearance submerged arc welding head (11), argonaut welding head (3), filament narrow-clearance submerged arc welding head (11) can be along X line line slideway (4) move left and right, portable man-machine interface control cabinet (9) places between argonaut welding head (3) and the operation stand (13) by the pipe connection, pipe drives portable man-machine interface control cabinet (9) can be around operation stand (13) rotation, portable man-machine interface control cabinet (9) is rotatable around pipe, crosshead lifting worm speed reducer (6), drive sprocket (7), chain (8) places operation stand (13) top, crosshead lifting worm speed reducer (6) connects drive sprocket (7) and chain (8), chain (8) connects welding operation frame transverse arm (5), crosshead lifting worm speed reducer (6) drive sprocket (7) and chain (8) can drive welding operation frame transverse arm (5) and move up and down along operation stand (13), operation stand (13) bottom is connected with crosshead walking mechanism (16) by slew gear (14), crosshead walking decelerator (15) places on the crosshead walking mechanism (16), be connected with slew gear (14), the bottom of crosshead walking mechanism (16) is equipped with crosshead track (17), transverse arm moves the back that decelerator (18) places operation stand (13), the source of welding current (19), electric cabinet (20) places the front and back side of crosshead walking mechanism (16) respectively, the source of welding current (19) respectively with argonaut welding head (3), crosshead lifting worm speed reducer (6), portable man-machine interface control cabinet (9), filament narrow-clearance submerged arc welding head (11), crosshead walking decelerator (15), transverse arm moves decelerator (18) and connects.
4. the required equipment of technology according to claim 3, it is characterized in that, described roller devices (1) is by turning rolls lifting decelerator (21), turning rolls walking mechanism (22), turning rolls (23), turning rolls transverse moving mechanism (24), roller (25) is formed, turning rolls transverse moving mechanism (24) places above the turning rolls (23), can move laterally along turning rolls (23), turning rolls walking mechanism (22) places below the turning rolls (23), turning rolls lifting decelerator (21) places a side of turning rolls (23), can drive turning rolls (23) moves up and down, roller (25) places on the turning rolls transverse moving mechanism (24), turning rolls walking mechanism (22) places roller (25) one sides, can drive roller (25) and rotate.
5. according to claim 3 or 4 described turning rolls (1), it is characterized in that described roller (25) is made up of active and driven two turning rolls, the return idler frame can be done horizontal fine setting.
6. the required equipment of these technologies of use according to claim 3, it is characterized in that, described argonaut welding head (3) is by welding torch (26), follow the tracks of DC speed-reducing (27), Z shaft mechanical tracking means (28), Y-axis work coordinate system range finding laser sensor (29), X-axis work coordinate system range finding laser sensor (30), cross electric carriage (31), Y-axis servomotor (32), wire-feed motor (33), the horizontal shift servo motor of X-axis (34), wire reel (35) is formed, following the tracks of DC speed-reducing (27) places on the welding torch (26), can drive welding torch (26) tilted direction moves around, Z shaft mechanical tracking means (28) is connected with welding torch (26), can drive welding torch (26) vertical direction moves up and down, be used for collecting surely automatically the Y-axis work coordinate system range finding laser sensor (29) in the case center of circle, X-axis work coordinate system range finding laser sensor (30) places on the welding torch (26), cross electric carriage (31) places an end of welding operation frame transverse arm (5), the lower end is connected with welding torch (26), upper end and Y-axis servomotor (32), wire-feed motor (33) connects, the horizontal shift servo motor of X-axis (34), wire reel (35) places a side of cross electric carriage (31), and the welding wire of wire reel (35) is connected with welding torch (26) by wire-feed motor (33).
7. the required equipment of these technologies of use according to claim 3, it is characterized in that, described filament narrow-clearance submerged arc welding head (11) is by submerged-arc welding wire (36), solder flux case (37), cross electric carriage (10), narrow gap welding square (38), welding wire SERVO CONTROL swing mechanism (39), flux collection system (40), welding bead tracking probe (41) is formed, submerged-arc welding wire (36) places on the welding operation frame transverse arm (5), welding wire on the submerged-arc welding wire (36) is connected with narrow gap welding square (38), cross electric carriage (10) places the other end of welding operation frame transverse arm (5), narrow gap welding square (38) is connected with cross electric carriage (10), welding wire SERVO CONTROL swing mechanism (39) places on the narrow gap welding square (38), can drive narrow gap welding square (38) swing, solder flux case (37) places the upper end of cross electric carriage (10), be connected with welding operation frame transverse arm (5) by connecting plate, flux collection system (40) places one side of narrow gap welding square (38), be connected with solder flux case (37), welding bead tracking probe (41) places on the narrow gap welding square (38).
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Assignee: Wise Welding Technology & Engineering Co., Ltd. Assignor: Shanghai Boiler Factory Co., Ltd. Contract fulfillment period: 2008.11.25 to 2014.10.20 contract change Contract record no.: 2008990001534 Denomination of invention: Process and device for automatic argon arc welding and narrow gap burial arc welding for circular pipe header seam Granted publication date: 20080702 License type: Exclusive license Record date: 20081224 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.25 TO 2014.10.20; CHANGE OF CONTRACT Name of requester: BEIJING ZHONGDIAN HUAQIANG WELDING ENGINEERING TEC Effective date: 20081224 |