CN103071902A - Method and device for controlling welding process based on stability of perforated molten bath - Google Patents
Method and device for controlling welding process based on stability of perforated molten bath Download PDFInfo
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- CN103071902A CN103071902A CN2013100115636A CN201310011563A CN103071902A CN 103071902 A CN103071902 A CN 103071902A CN 2013100115636 A CN2013100115636 A CN 2013100115636A CN 201310011563 A CN201310011563 A CN 201310011563A CN 103071902 A CN103071902 A CN 103071902A
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Abstract
The invention relates to a method and a device for controlling a welding process based on stability of a perforated molten bath, and belongs to the technical field of welding equipment. The problem of electric arc skewing in the welding process is solved by the self rotation of a welding torch, the problem of change of welding positions during different-thick plate welding and misalignment welding is solved by the transverse movement of the welding torch, the problem of all-position welding is solved by the pitching of the welding torch, and the decoupling of welding torch movement and welding wire movement is realized by the respective control of the welding torch and the wire feeding system so as to control the arc striking and perforating during thick plate welding. The device is a special welding machine head for controlling the welding process based on the stability of the perforated molten bath. The method and the device have the advantages that the special plasma welding machine has higher integration degree, and the wire delivering system, the arc pressure control system, the rotation, extension and retraction of the welding torch, a camera monitoring system and the transverse movement and adjustment are organically combined into a whole; and the maintenance of a welding mechanism system is very easy.
Description
Technical field
The present invention relates to a kind ofly for special welding process control method and device based on the perforation weld pool stability when solving welding aircraft critical component, belong to the Aero-Space welding technology field.
Background technology
At present, along with the development of domestic air mail aerospace industry, the solder technology that is applicable to aerospace material has also obtained fast development.Because spacecraft needs it to have lightweight, thus used a large amount of aluminums, and welding of aluminum class material variable-polarity plasma welding technology is a more favourable welding manner.
The welding of the critical component of spacecraft has realized that substantially all position automatic welding connects, and its implementation procedure is by the cross manipulator and positioner is used in conjunction with and welding tractor and special welding tooling are realized welding.But because the volume of manipulator and welding tractor is large and heavy, so carrying out under the high-quality welding requirements condition of high precision, this several method just can not well reach the welding quality requirement.
Secondly, because in the Plasma Welding process, the welded part heat radiation is inhomogeneous, the field of plasma arc deflection that the scaling loss of tungsten electrode, nozzle welding process causes causes the roundness deformation of boring a hole, thus and the be heated artificial adjusting of carrying out Butt welding gun of the inhomogeneous appearance needs that cause the problems such as undercut, cutting and to the adjustment of equipment of the aperture both sides that cause owing to the reason of the welding deformation mechanical-physical reason such as cause that the height of welding arc changes in the Plasma Welding process.
Again, outside frock or welded piece be because the problem of fitment tolerance or installation accuracy, causes in the welding process when special had can not the centering weld seam; Therefore, existing welding scheme can not be regulated corresponding equipment in real time, finishes the high-precision welding production task of high efficiency high automation high-quality.
Summary of the invention
The present invention is directed to the deficiency of existing Plasma Welding equipment, propose a kind ofly can better solve welding arc and depart from weld seam.The both sides that electric arc aperture ovality problem causes are heated inhomogeneous and the welding control method welding arc length variations, and designed based on this a volume size and the quality weight reasonable, integrated level is high, automaticity is high, the Plasma Welding special had that adaptive ability is strong, thus but solved the technological problemses such as undercut and cutting simultaneously Real-Time Monitoring electric arc and Molten Pool Shape.
A kind of welding process control method and device based on the perforation weld pool stability of the present invention adopts following technical proposals:
This perforation weld pool stability welding process control method, in Keyholing Puddle during Plasma Arc Welding stability welding process, the arc shape that arrives according to real-time monitored, pass through rotary welding gun, the two minutes faces of welding arc and weld seam that guarantee overlap, and overcome undercut and cutting problem that the deflection of electric arc on the weld seam normal plane causes; The position, molten bath of arriving according to real-time monitored, by horizontal left and right sides translation welding gun in the weld seam normal plane, its electric arc is moved to apart from weld seam 0 in the scope of 3mm, overcome position, real time altering molten bath in unequal thickness plate welding or misalignment welding, prevent because the appearance that the welding position causes undercut or cutting problem is departed from the perforation molten bath.According to the real-time Molten Pool Shape that detects, the elevating movement in two minutes faces of weld seam of pitch control welding gun by head, regulate welding gun walking angle, make its adjustable range can be at ± 45 °, change problem to solve in all position welding termination process because gravity direction changes the molten bath flow direction that causes, realize all-position welding; In thick plates, by realizing welding wire motion and the decoupling zero that welding gun moves, reach the purpose that welding wire and welding gun are controlled respectively; Welded forearc, welding gun and welding wire all reach in the scope apart from weld seam 0 to 10mm; In the welding starting the arc perforation procedure, welding wire keeps original invariant position, and welding gun melts with molten pool metal, and axial stretching is adjusted to 3 to 4mm distance; Welding starting the arc perforation is complete, and welding wire keeps original invariant position, and welding gun elongates to arriving the 10mm position apart from weld seam 4, begins normal welding process;
This Variable Polarity Keyholing Puddle during Plasma Arc Welding stability welding procedure control device, comprise three-dimensional seal wire governor motion, wire feed adjuster, plasma gun, welding gun is circumferentially reconciled mechanism, the welding gun axial regulating mechanism, transverse shifting adjusting device, electric arc video monitor photographic device I, II, soft readjustment support I, II, wire guiding nipple, seal wire flexible pipe, L-type connecting plate I, II and frame I, II; Plasma gun and welding gun rotate in a circumferential direction and reconcile mechanism and be installed on the welding gun circumferential-adjusting mechanism, welding gun is circumferentially reconciled mechanism and is installed on the frame I by line slideway and slide block, frame I and frame II are connected, three-dimensional seal wire governor motion is installed in above the frame II, wire guiding nipple is connected to three-dimensional seal wire governor motion, the seal wire flexible pipe connects wire guiding nipple and wire feed adjuster, the wire feed adjuster is installed on the frame II, electric arc video monitor photographic device I and electric arc video monitor photographic device II are mounted on L-type connecting plate I and L-type connecting plate II with soft readjustment support I and soft readjustment support II respectively, L-type connecting plate I, II is installed in the frame I, on the II, the weld seam centralising device is installed in the frame II, the frame II is connected to transverse shifting and reconciles mechanism, realizes that the transverse shifting of whole special had is regulated.
Three-dimensional seal wire governor motion comprises three regulating electric machine I, II, III, the motor I is installed in seal wire connecting plate I, the motor I is connected with the lead screw shaft I by the shaft coupling I, seal wire connecting plate II and lead screw shaft engagement, simultaneously the dovetail chute on it cooperates with dovetail groove on the seal wire connecting plate I, the motor II is installed in an end of seal wire connecting plate II, the axle of motor II and seal wire adjusting gear link together by screw and packing ring, tooth bar on the connecting plate III and the engagement of seal wire adjusting gear, the dovetail slide rail of while connecting plate III cooperates with the dovetail slideway on the connecting plate II, the motor III is installed in the connecting plate III, and the shaft coupling III couples together motor III axle head and lead screw shaft III.Lead screw shaft III and wire guiding nipple contiguous block fit engagement, the dovetail slide rail of wire guiding nipple contiguous block cooperates with the dovetail slideway of the connecting plate III other end.
Wire guiding nipple is installed in and uses jackscrew to fix in the pilot hole of wire guiding nipple contiguous block, by the seal wire flexible pipe wire guiding nipple and wire feed adjuster is linked together, and the wire feed adjuster is fixed on the postmedian of frame II.
The pikestaff of plasma gun passes two installing holes of frame II, the swing pinion I is fixed on the pikestaff simultaneously, the pikestaff secure fit of bracing frame centre bore and plasma gun, and an end and line slideway I, the II of bracing frame are fixed together, line slideway and slide block I, II, III, IV combination, the slide block I, II, III, IV are fixed on the inside of frame I.The motor IV is fixed on an end of frame II, is connected with the lead screw shaft IV by the axle head of shaft coupling IV with the motor IV, and lead screw shaft cooperates with the screwed hole of bracing frame one end, and this is welding gun axial stretching governor motion, the length that can regulate welding arc;
The motor V is installed in the click installing hole of the bracing frame other end, and the axle head of motor V and swing pinion II are fixed together, and swing pinion II and swing pinion I mesh together, and this is the governor motion that rotates in a circumferential direction of welding gun, realizes welding arc rotation adjusting.
The transverse shifting adjusting device is by the motor VI, turn-screw, guiding polished rod I, II, horizontal support, the driving pulley I, II, synchronous cog belt and horizontal contiguous block form, the motor VI is installed in horizontal support, the axle head connection for transmission belt pulley I of motor VI, synchronous cog belt transmits motion with driving pulley I and the engagement of driving pulley II, the driving pulley II is connected with turn-screw, and turn-screw is installed in horizontal support, guiding polished rod I, II is installed in and is parallel to turn-screw on the horizontal support, the laterally neutral threaded hole of contiguous block and turn-screw engagement, the pilot hole at its two ends and guiding polished rod I, II cooperates realization to be slidingly matched, and laterally contiguous block is fixed on the frame II at last, realizes that the transverse shifting of Plasma Welding special had is regulated.
Flexible support is by connector, outer bar I, II, and inner push-rod I, II clamp cam, and base and L-type connecting plate form.The electric arc video monitor photographic device is comprised of industrial camera and industrial lens.Industrial lens is installed on the lens interface of industrial camera, installation screwed hole by industrial camera, be installed in the connector of flexible support, the arc-shaped inner surface that connector and outer bar I are one section is fitted, the arc head that the inner push-rod I is one section and the cambered surface of connector are fitted, the clamping cam contacts with inner push-rod I, II and carries out the locking task, the inner push-rod II is passed the inside of outer bar II, outer push rod II and inner push-rod II are fitted with the cambered surface of base simultaneously, floor installation is on the L-type connecting plate, and last L-type connecting plate is fixed on the frame.Can realize adjusting the suitable observation position of electric arc video monitor photographic device, be convenient to observe best conditions at the arc.
The welding gun that the present invention adopts is axially reconciled mechanism and welding gun and is circumferentially reconciled mechanism and can realize rotating in a circumferential direction of welding arc and axial stretching, so arc deflection occurs in Plasma Welding the problems such as the inhomogeneous generation undercut of being heated of aperture both sides, cutting is resolved.Simultaneously because the transverse shifting adjusting device can realize the miniature adjustment of Plasma Welding special had, the electric arc video monitor photographic device by the adjusting of flexible support can be real-time the form of observation welding arc.Can finish high efficiency, high-quality, the weld task under high automation and the high-precision requirement.
Description of drawings:
Fig. 1 general assembly structural representation of the present invention
Fig. 2 general assembly internal structure of the present invention schematic diagram
Fig. 3 wire feeder schematic diagram
Fig. 4 wire guiding nipple governor motion axonometric drawing
Fig. 5 seal wire governor motion is expressed view
Fig. 6 seal wire governor motion cutaway view
The axial circumferential-adjusting mechanism schematic diagram of Fig. 7 welding gun
The axial axial regulating mechanism of Fig. 8 welding gun is expressed view
The axial circumferential-adjusting mechanism cutaway view of Fig. 9 welding gun
Figure 10 lateral adjustment schematic diagram
Figure 11 transverse shifting governor motion is expressed view
Figure 12 flexible support governor motion schematic diagram
Figure 13 flexible support governor motion is expressed view
Figure 14 flexible support governor motion cutaway view
Figure 15 electric arc video monitor photographic device
Figure 16 frame I
Figure 17 frame II
Figure 18 weld seam centralising device
Among the figure: 1, plasma gun, 2, wire guiding nipple, 3, three-dimensional seal wire governor motion, 4, the seal wire flexible pipe, 5, the wire feed adjuster, 6, the line slideway I, 7, the slide block I, 8, the slide block II, 9, electric arc video monitor photographic device II, 10, the flexible support II, 11, L-type connecting plate II, 12, the slide block III, 13, the frame II, 14, the slide block IV, 15, the transverse shifting adjusting device, 16, welding gun axial stretching governor motion, 17, the welding gun governor motion that rotates in a circumferential direction, 18, the weld seam centralising device, 19, electric arc video monitor photographic device I, 20, the flexible support I, 21, L-type connecting plate I, 22, the frame I, 23, the lead screw shaft IV, 24, the shaft coupling IV, 25, the motor IV, 26, the line slideway II, 27, bracing frame, 28, the swing pinion I, 29, the swing pinion II, 30, the motor V, 31, the motor III, 32, the connecting plate III, 33, the wire guiding nipple contiguous block, 34, the lead screw shaft III, 35, screw, 36, packing ring, 37, the seal wire adjusting gear, 38, seal wire connecting plate I, 39, the motor I, 40, the shaft coupling III, 41, seal wire connecting plate II, 42, the motor II, 43, the shaft coupling I, 44, the lead screw shaft I, 45, weld seam centering LED lamp, 46, angle-regulating block, 47, support bar, 48, horizontal support, 49, guiding polished rod I, 50, horizontal contiguous block, 51, the motor VI, 52, the driving pulley I, 53, synchronous cog belt, 54, the driving pulley II, 55, turn-screw, 56, guiding polished rod II, 57, connector, 58, outer bar I, 59, the inner push-rod I, 60, clamp cam, 61, the inner push-rod II, 62, outer bar II, 63, base, 64, the L-type connecting plate, 65, industrial lens, 66, the industry camera, 67, the collar lid.
The specific embodiment:
Structure of the present invention as shown in Figure 1 and Figure 2, this plasma welding special had comprises that three-dimensional seal wire governor motion 3, wire feed adjuster 5, plasma gun 1, welding gun circumferentially reconcile mechanism 17, welding gun axial regulating mechanism 16, transverse shifting adjusting device 15, electric arc video monitor photographic device I 19, electric arc video monitor photographic device II 9, soft readjustment support I 20, soft readjustment support II 10, wire guiding nipple 2, seal wire flexible pipe 4, L-type connecting plate I 21, L-type connecting plate II 11 and frame I 22, frame II 13.Plasma gun 1 and welding gun rotate in a circumferential direction and reconcile mechanism 17 and be installed on the welding gun axial regulating mechanism 16, welding gun is axially reconciled mechanism 16 by line slideway I 6, line slideway II 26 and slide block I, II, III, IV 7,8,12,14 are installed on the frame I, frame I 22 is connected with frame II 13, three-dimensional seal wire governor motion 3 is installed in above the frame II 13, wire guiding nipple 2 is connected to three-dimensional seal wire governor motion 3, seal wire flexible pipe 4 connects wire guiding nipple 2 and wire feed adjuster 5, wire feed adjuster 5 is installed on the frame II 13, electric arc video monitor photographic device I 19 and electric arc video monitor photographic device II 9 are mounted on L-type connecting plate I 21 and L-type connecting plate II 11 with soft readjustment support I 20 and soft readjustment support II 10 respectively, L-type connecting plate I, II 21,11 are installed in the frame I, II 22, on 13, weld seam centralising device 18 is installed in frame II 13, frame II 13 is connected to transverse shifting and reconciles mechanism 15, realizes that the transverse shifting of whole special had is regulated.
As shown in Figure 3, wire guiding nipple 2 is installed in and uses the silk top fixing in the pilot hole of the wire guiding nipple contiguous block 33 in the three-dimensional seal wire governor motion 3, by seal wire flexible pipe 4 wire guiding nipple 2 and wire feed adjuster 5 are linked together, wire feed adjuster 5 is fixed on the postmedian of frame II 13.
Such as Fig. 4,5, shown in 6, three-dimensional seal wire governor motion 3 comprises three regulating electric machine I 39, II 42, III 31, motor I 39 is installed in seal wire connecting plate I 38, motor I 39 is connected with lead screw shaft I 44 by shaft coupling I 43, seal wire connecting plate II 41 and 44 engagements of lead screw shaft I, simultaneously the dovetail chute on it cooperates with dovetail groove on the seal wire connecting plate I 38, motor II 42 is installed in an end of seal wire connecting plate II 41, the axle of motor II 42 and seal wire adjusting gear 37 link together by screw 35 and packing ring 36, tooth bar on the connecting plate III 32 and 37 engagements of seal wire adjusting gear, the dovetail slide rail of while connecting plate III 32 cooperates with the dovetail slideway on the seal wire connecting plate II 41, motor III 31 is installed in connecting plate III 32, and shaft coupling III 40 couples together motor III 31 axle heads and lead screw shaft III 34.Lead screw shaft III 34 and wire guiding nipple contiguous block 33 fit engagement, the dovetail slide rail of wire guiding nipple contiguous block 33 cooperates with the dovetail slideway of connecting plate III 32 other ends.
Shown in Fig. 7,8,9, the pikestaff of plasma gun 1 passes two installing holes of frame II 13, and swing pinion I 28 is fixed on the pikestaff simultaneously, the pikestaff secure fit of bracing frame 27 centre bores and plasma gun 1, one end of bracing frame 27 and line slideway I 6, II 26 are fixed together, line slideway and slide block I 12, II 14, III 8, IV 7 combinations, slide block I 12, II 14, III 8, IV 7 is fixed on the inside of frame I 22.Motor IV 25 is fixed on an end of frame II 13, by shaft coupling IV 24 axle head of motor IV 25 is connected connection with the lead screw shaft IV, lead screw shaft IV 23 cooperates with the screwed hole of bracing frame 27 1 ends, motor V 30 is installed in bracing frame 27 other end installing holes, the axle head of motor V 30 and swing pinion II 29 are fixed together, swing pinion II 29 meshes together with swing pinion I 28, realizes that the electric arc rotation on welding gun top is regulated.
Such as Figure 10, transverse shifting shown in 11 is reconciled shown in the mechanism, by motor VI 51, turn-screw 55, guiding polished rod I 49, II 56, horizontal support 48, driving pulley I 52, II 54, synchronous cog belt 53 and horizontal contiguous block 50 form, motor VI 51 is installed in horizontal support 48, the axle head connection for transmission belt pulley I 52 of motor VI 51, synchronous cog belt 53 transmits motion with driving pulley I 52 and 54 engagements of driving pulley II, driving pulley II 54 is connected with turn-screw 55, turn-screw 55 is installed in horizontal support 48, guiding polished rod I 49, II 56 is installed in and is parallel to turn-screw 55 on the horizontal support 48, the laterally neutral threaded hole of contiguous block 50 and turn-screw 55 engagements, the pilot hole at its two ends and guiding polished rod I 49, II 56 cooperates realization to be slidingly matched, laterally contiguous block 50 is fixed on the frame II 13 at last, realizes that the transverse shifting of Plasma Welding special had is regulated.
Flexible support is reconciled mechanism and electric arc video monitoring apparatus shown in Figure 12,13,14,15, and flexible support is by connector 57, outer bar I 58, II 62, and inner push-rod I 59, II 61 clamp cam 60, and base 63 and L-type connecting plate 64 form.The electric arc video monitor photographic device is comprised of industrial camera 66 and industrial lens 65.Industrial lens 65 is installed on the lens interface of industrial camera 66, installation screwed hole by industrial camera 66, be installed in the connector 57 of flexible support, connector 57 is fitted with the arc-shaped inner surface of 58 1 sections of outer bar I, the arc head that the inner push-rod I is 59 1 sections and the cambered surface of connector 57 are fitted, clamp cam 60 and inner push-rod I 59, the locking task is carried out in II 61 contacts, inner push-rod II 61 is passed the inside of outer bar II 62, outer push rod II 62 and inner push-rod II 61 are fitted with the cambered surface of base 63 simultaneously, base 63 is installed in above the L-type connecting plate 64, and last L-type connecting plate 64 is fixed on the frame.Can realize adjusting the suitable observation position of electric arc video monitor photographic device, be convenient to observe best conditions at the arc.
Frame I 22, frame II 13 shown in Figure 16,17, shown in frame I, II 22,13 couple together, form the shell of special had.
Weld seam centralising device as shown in figure 18 is by weld seam centering LED lamp 45, angle-regulating block 46, support bar 47.Weld seam centering LED lamp 45 is installed in the folder hole of angle-regulating block 46, and angle-regulating block 46 is bolted at support bar 47, and last support bar 47 is installed on the frame II 13.Since it be installed in plasma gun under, so as long as the light point of weld seam centering LED lamp 45 is aimed at weld seam, just can realize that the centering between welding gun and the weld seam acts on.
The course of work of the present invention is as follows:
In welding process, special had is installed on cross manipulator or the corresponding special tooling, when since outside frock or welded piece because the problem of fitment tolerance or installation accuracy, cause when special had can not the centering weld seam, regulate transverse shifting adjusting device 15 with special had and weld seam centering this moment, because in the Plasma Welding process, the welded part heat radiation is inhomogeneous, tungsten electrode, the field of plasma arc deflection that the scaling loss of nozzle welding process causes, and in the Plasma Welding process owing to thereby the reason of welding deformation causes aperture both sides that the mechanical-physical reasons such as the height of welding arc changes the cause inhomogeneous undercut that causes that is heated, the appearance of the problems such as cutting, can regulate the length of electric arc and the task of rotating the arc by adjusting welding gun axial stretching governor motion 16 and the welding gun governor motion 17 that rotates in a circumferential direction, because electric arc video monitor photographic device I 19 being installed, electric arc video monitor photographic device II 9 can be real-time observation and monitor the form in two orientation of electric arc, so by seeing the corresponding motor of the image adjustment that passes to can be real-time electric arc is adjusted, reach best welding effect, because variation has occured in the relative position of welding gun and wire guiding nipple, the problem that wire feed is regulated will appear, because three-dimensional seal wire governor motion 3 can be realized the adjustment of the three-dimensional of wire guiding nipple 2, by the adjustment of three-dimensional seal wire governor motion 3, wire guiding nipple 2 can be arranged the optimum position of welding gun mouth.Finally can finish high efficiency, high-quality, the weld task under high automation and the high-precision requirement.
Claims (9)
1. welding process control method based on the perforation weld pool stability, institute's welding procedure of telling is perforation molten bath welding procedure, described control method comprises:
Zone, molten bath and the arc shape of Real Time Monitoring welding overall process;
In the welding process, according to the arc shape that real-time monitored arrives, by rotary welding gun, the two minutes faces of welding arc and weld seam that guarantee overlap, and overcome undercut and cutting problem that the deflection of electric arc on the weld seam normal plane causes;
In the welding process, by realizing welding wire motion and the decoupling zero that welding gun moves, reach the purpose that welding wire and welding gun are controlled respectively;
In the welding process, the position, molten bath of arriving according to real-time monitored, by horizontal left and right sides translation welding gun in the weld seam normal plane, its electric arc is moved to apart from weld seam 0 in the scope of 3mm, overcome position, real time altering molten bath in unequal thickness plate welding or misalignment welding, prevent because the appearance that the welding position causes undercut or cutting problem is departed from the perforation molten bath.
In the welding process, according to the real-time Molten Pool Shape that detects, the elevating movement in two minutes faces of weld seam of pitch control welding gun by head, regulate welding gun walking angle, make its adjustable range can be at ± 45 °, change problem to solve in all position welding termination process because gravity direction changes the molten bath flow direction that causes, realize all-position welding.
2. according to claims 1 described welding process control method based on the perforation weld pool stability, it is characterized in that: described welding process control method can be realized following control program in thick plates:
Welded forearc, welding gun and welding wire all reach in the scope apart from weld seam 0 to 10mm; In the welding starting the arc perforation procedure, welding wire keeps original invariant position, and welding gun melts with molten pool metal, and axial stretching is adjusted to 3 to 4mm distance;
Welding starting the arc perforation is complete, and welding wire keeps original invariant position, and welding gun elongates to arriving the 10mm position apart from weld seam 4, begins normal welding process.
3. realize the device of welding process control method based on the perforation weld pool stability claimed in claim 1, it is characterized in that: it mainly comprises three seal wire governor motions (3), welding gun axial stretching governor motion (16), the welding gun governor motion (17) that rotates in a circumferential direction, transverse shifting adjusting device (15), the electric arc video monitoring system, weld seam centralising device (18), nosepiston governor motion;
Described three-dimensional seal wire governor motion (3) is installed in seal wire connecting plate I (38) by motor I (39), motor I (39) is connected with lead screw shaft I (44) by shaft coupling I (43), seal wire connecting plate II (41) and lead screw shaft I (44) engagement, simultaneously the dovetail chute on it cooperates with dovetail groove on the seal wire connecting plate I (38), motor II (42) is installed in an end of seal wire connecting plate II (41), the axle of motor II (42) and seal wire adjusting gear (37) link together by screw (35) and packing ring (36), tooth bar on the connecting plate III (32) and seal wire adjusting gear (37) engagement, the dovetail slide rail of while connecting plate III (32) cooperates with the dovetail slideway on the seal wire connecting plate II (41), motor III (31) is installed in connecting plate III (32), and shaft coupling III (40) couples together motor III (31) axle head and lead screw shaft III (34).Lead screw shaft III (34) and wire guiding nipple contiguous block (33) fit engagement, the dovetail slide rail of wire guiding nipple contiguous block (33) cooperates with the dovetail slideway of connecting plate III (32) other end;
Described welding gun axial stretching governor motion (16) is passed two installing holes of frame II (13) by the pikestaff of plasma gun (1), swing pinion I (28) is fixed on the pikestaff simultaneously, the pikestaff secure fit of bracing frame (27) centre bore and plasma gun (1), one end of bracing frame (27) and line slideway I (6), II (26) is fixed together, line slideway and slide block I (12), II (14), III (8), IV (7) combination, slide block I (12), II (14), III (8), IV (7) is fixed on the inside of frame I (22).Motor IV (25) is fixed on an end of frame II (13), by shaft coupling IV (24) axle head of motor IV (25) is connected 23 with the lead screw shaft IV) connect, lead screw shaft IV (23) cooperates with the screwed hole of bracing frame (27) one ends;
The described welding gun governor motion (17) that rotates in a circumferential direction is installed in bracing frame (27) other end installing hole by motor V (30), the axle head of motor V (30) and swing pinion II (29) are fixed together, swing pinion II (29) meshes together with swing pinion I (28), realizes that the electric arc rotation on welding gun top is regulated;
Described transverse shifting adjusting device (15) is by motor VI (51), turn-screw (55), guiding polished rod I (49), II (56), horizontal support (48), driving pulley I (52), II (54), synchronous cog belt (53) and horizontal contiguous block (50) form, motor VI (51) is installed in horizontal support (48), the axle head connection for transmission belt pulley I (52) of motor VI (51), synchronous cog belt (53) transmits motion with driving pulley I (52) and driving pulley II (54) engagement, driving pulley II (54) is connected with turn-screw (55), turn-screw (55) is installed in horizontal support (48), guiding polished rod I (49), II (56) is installed in and is parallel to turn-screw (55) on the horizontal support (48), the laterally neutral threaded hole of contiguous block (50) and turn-screw (55) engagement, the pilot hole at its two ends and guiding polished rod I (49), II (56) cooperates realization to be slidingly matched, laterally contiguous block (50) is fixed on the frame II (13) at last, realizes that the transverse shifting of welding special had is regulated;
Described electric arc video monitoring system forms the both sides, top and bottom that electric arc video monitoring apparatus I and electric arc video monitoring apparatus II lay respectively at electric arc by two parts, can observe the form of electric arc top and bottom.Electric arc video monitoring apparatus I has electric arc video monitor photographic device I (19) to be installed in the top of flexible support I (20), is fixed on frame I (22) by L-type connecting plate I (21) at last; Electric arc video monitoring apparatus II is installed in the top of flexible support II (10) by electric arc video monitor photographic device II (11), be fixed on the frame II (13) by (L) type connecting plate II (11) at last.
Described weld seam centralising device (18) is installed in the holes for clamping of angle-regulating block (46) by weld seam centering LED lamp (45), and angle-regulating block (46) is connected to one by being hinged with support bar (47).
Described nosepiston governor motion, by the locating hole above the horizontal support (48), automatic rotation horizontal support (48) is realized the fixedly Angulation changes of special had by the circular array locating hole.
Horizontal contiguous block on the transverse shifting adjusting device (15) 50 is bolted with frame II 13 1 ends in sum, the welding gun three-dimensional seal wire governor motion of governor motion (17) (3) the welding gun axial stretching governor motion (16) that rotates in a circumferential direction all is installed in the shell cavity that frame II 13 and frame I 22 consist of, wherein plasma gun 1 is installed on the frame II 13 and can be rotated motion and telescopic slide in the installing hole thereon, axial stretching and the mechanism that rotates in a circumferential direction are installed in line slideway I 6 by bracing frame 27, on the line slideway II 26, and the slide block I 7 by being connected with them, slide block II 8, slide block III 12, slide block IV 14 is connected in and forms inner organic whole, electric arc video monitoring apparatus I and electric arc video monitoring apparatus II on the frame I 22, weld seam centralising device (18) is installed in respectively frame I 22, on the shell of frame II 13.
According to claim 3 a kind of based on the perforation weld pool stability the welding procedure control device, it is characterized in that: described three-dimensional seal wire governor motion (3), can realize that wire guiding nipple (2) moves in the three-dimensional along welding gun axial direction, operating angle direction and walking angular direction of plasma gun (1) rifle head top.
5. a kind of welding procedure control device based on the perforation weld pool stability according to claim 3 is characterized in that: described welding gun axial stretching governor motion (16), can realize the flexible of plasma gun (1) welding gun axial direction.
According to claim 3 a kind of based on the perforation weld pool stability the welding procedure control device, it is characterized in that: the described welding gun governor motion (17) that rotates in a circumferential direction, can realize plasma gun (1) in welding process, along the circumferential direction rotation of welding gun axle.
7. a kind of welding procedure control device based on the perforation weld pool stability according to claim 3 is characterized in that: described transverse shifting adjusting device (15), can integrally-regulated head move with respect to the normal direction of weld seam.
8. a kind of welding procedure control device based on the perforation weld pool stability according to claim 3, it is characterized in that: described electric arc video monitoring system is arranged in the panorama form that the upper and lower faces of welding arc can be observed in the up and down both sides of welding arc.
9. a kind of welding procedure control device based on the perforation weld pool stability according to claim 3, it is characterized in that: described oscillation adjuster can be realized the existing Integral swinging for welded piece of special had parts.
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Application publication date: 20130501 Assignee: Beijing Beigong University Science Park Co.,Ltd. Assignor: Beijing University of Technology Contract record no.: X2024980001854 Denomination of invention: A welding process control method and device based on the stability of perforated melt pool Granted publication date: 20150617 License type: Common License Record date: 20240201 |
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