CN103692063B - A kind of Novel welding device - Google Patents
A kind of Novel welding device Download PDFInfo
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- CN103692063B CN103692063B CN201310689883.7A CN201310689883A CN103692063B CN 103692063 B CN103692063 B CN 103692063B CN 201310689883 A CN201310689883 A CN 201310689883A CN 103692063 B CN103692063 B CN 103692063B
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0461—Welding tables
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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
- B23K9/02—Seam welding; Backing means; Inserts
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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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/287—Supporting devices for electrode holders
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention proposes a kind of Novel welding device, and the high temperature weld metal that the rear of welding gun body is provided with the not yet recovery strength that alignment pieces is solidified carries out the ultrasonic impact device of ultrasonic impact.So, ultrasonic impact device of the present invention is synchronous with welding gun body in company with mobile, during welding, the high temperature weld metal of the not yet recovery strength solidified at rear, molten bath certain position along welded piece thickness direction imposes the impact of ultrasonic frequency, by hyperacoustic exciting force effect, impact is carried out to produce plastic extension to the metal being in condensation contraction state, compensates the compression plastic strain produced in heating process, and then reduce welding deformation; Also can thinning weld metal structure and change the directionality of grain crystalline, make tissue be tending towards more uniform state, compared with prior art, the present invention effectively eliminates the static stress and distortion of commissure metal, the not yielding and weld strength of workpiece, simple and reliable for structure, easily be automated.
Description
Technical field
The present invention relates to welding technology field, be specifically related to a kind of Novel welding device of effective elimination welding residual stress and distortion.
Background technology
Aluminum-aluminum alloy is one of metal that in non-ferrous metal, purposes is wider, and aluminum alloy materials has the advantages such as higher specific strength, corrosion-resistant, good electrical and thermal conductivity and weldability.And thin plate class aluminium alloy structure have lightweight, processing performance good (easily processing, easy-formation), the feature such as easy to connect, thus instead of conventional steel structure, be widely used in various Welding Structure product.China also obtains rapid progress in the production of aluminium alloy extrusions and use, its market competitiveness improves constantly, obtain in the fields such as space flight, aviation, chemical industry, electrical equipment and machine-building in recent years and apply widely, the fields such as such as boats and ships, large pressurized vessel, aircraft skin, thus aluminium alloy extrusions occupies an important position in national economy.But aluminium alloy heat inherently, mechanical property, as larger linear expansion coefficient, the characteristics such as higher thermal conductivity, make, when welding processing technology is applied to aluminium alloy sheet structural member, to show the shortcomings such as welding deformation is large, hot cracking tendency is serious, welding point is softening.Excessive welding deformation is difficult to the stability ensureing size, adds operation and the difficulty of subsequent corrective and repairing, have impact on the normal cycle of production, cause waste to a certain degree and economic loss.And welding residual stress is the immediate cause causing welding deformation and produce fire check, welded service life and bearing capacity can be reduced simultaneously.
Current in order to reduce residual stress, control welding stress and distortion, mainly set about from mechanics factor aspect.The measure that traditional control method adopts postwelding to eliminate stress, needs that external energy is large, performance difficulty, cost are high.Modern control theory adopts and controls with weldering, is mainly reached the object controlling welding stress and distortion by the stress state improved in welding process.Chinese scholars have employed a large amount of methods to control welding stress and distortion, and as mechanical stretching method, static thermal tension method, with weldering rolled-on method, trailing peening method, weld with trailing impactive rolling method etc., but this several method also all exists respective shortcoming.As mechanical stretching method, comparatively large by version restriction when applying, for different components, need to take different fixtures, which adds production cost, and reduce production efficiency.Static warm pulling method is out of shape for cross-direction shrinkage, helpless, is not suitable for the structure welding containing closed weld such as such as flange, hatch etc.With weldering rolled-on method because rolling apparatus is huge, and due to welding gun and rolling wheel hypotelorism in welding process, there is the problem of playing arc and interference mutually, therefore practical application effect is had a greatly reduced quality; Trailing peening method and weld with trailing impactive rolling method, for having for certain thickness structure or carbide alloy, are difficult to provide enough large mechanical impact force, cause the poor effect controlling welding stress deformation.Meanwhile, excessive mechanical impact force will certainly have influence on again the stability of welding arc and welding pool, causes appearance of weld bad.The disadvantage of these two kinds of welding methods is to produce uneven impact vestige on the surface of weldment, and this is unaccommodated for the higher Welding Structure of surface quality requirements.
For this reason, Chinese invention patent CN200980130008.7 discloses a kind of impact processing method improving welding point fatigue properties, its base metals material surface near the toe of weld of weld seam, press impulse pin while make it to operate along the relative movement of sealing wire direction, thus implement hammer peening or ultrasonic impact process, the feature of described impact processing method is: as described impulse pin, use top radius of curvature metal material thickness less than 1/2 and be the impulse pin of 2 ~ 10mm; Within being 2.5 times of the top radius of curvature of described impulse pin from the toe of weld of described weld seam to the distance of shock treatment place-centric; And until described impulse pin does not contact the base metals material surface of this scope in shock treatment with weld metal, implement described hammering or ultrasonic impact process, thus utilize described impulse pin to produce afterflow, make the groove depth of percussion mark be 0.1 ~ 2mm and less than 1/10 of thickness below the top radius of curvature of this impulse pin and for described metal material, the width of percussion mark is 1.5 ~ 15mm and more than 5 times of described groove depth.And a kind of shock treatment device improving welding point fatigue properties is disclosed, it is for the base metals material surface near the toe of weld of weld seam, press impulse pin while make it to operate along the relative movement of sealing wire direction, thus implement hammer peening or ultrasonic impact process, the feature of this shock treatment device is, be equipped: toe of weld position detection part, it detects the toe of weld position with the weld seam of the processed material of described welding point; Processing mechanism portion, it implements the hammer peening that undertaken by described impulse pin or ultrasonic impact process; Supporting pressing mechanism portion, it supports described processing mechanism portion, and by the base metals material surface of described impulse pin by the toe of weld predetermined distance of the weld seam be pressed in apart from described processed material; Device base portion, it loads the side in described supporting pressing mechanism portion or processed material; And portion of travel mechanism, it carries the opposing party in described supporting pressing mechanism portion or processed material, and self be placed in described device base portion, and according to being detected the toe of weld position of the weld seam obtained by described welding toe of weld position detection part, make described processing mechanism portion relative to described processed material along the relative movement of sealing wire direction.The welding structural element that a kind of fatigue-resistance characteristics is excellent is also disclosed, it is according to the structure of welding structural element and load condition, can to cause danger the weld part in portion or weld seam by specific fatigue crack, metal material surface at least near the toe of weld of described specific weld seam is formed with the length of more than 90% of the length of described specific weld seam, and the continuous punching percussion mark produced by the impulse pin of hammer peening or ultrasonic impact process, about described percussion mark, the distance of the toe of weld of its width middle position and described specific weld seam is within 2.5 times of the radius of curvature of its bottom land, and be formed at until the metal material surface of this scope that do not contact with described specific weld seam, and its groove depth is 0.1 ~ 2mm, and below the radius of curvature of described bottom land, and be less than 1/10 of the thickness of described metal material, its width is 1.5 ~ 15mm, and more than 5 times of described groove depth.But this invention just simply utilizes hyperacoustic impact principle to carry out ultrasonic impact to the weld welded, and can not eliminate the static stress and distortion of commissure metal consistently, effect is remarkable, and workpiece still there will be distortion and the problem such as intensity is weak.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Summary of the invention
The object of the present invention is to provide one effectively to eliminate welding residual stress and distortion, improve weld strength, and the Novel welding device that the original mechanical property of holding workpiece is good.
In order to achieve the above object, the present invention adopts such technical scheme:
A kind of Novel welding device, comprises welding gun body, and the high temperature weld metal that the rear of described welding gun body is provided with the not yet recovery strength that alignment pieces is solidified carries out the ultrasonic impact device of ultrasonic impact.
Also comprise frame, and the workbench of place work piece, described workbench is located in described frame; Above-mentioned welding gun body and ultrasonic impact device are located in described frame, and to be in above described workbench corresponding workbench from top to bottom.
Above-mentioned workbench is horizontally disposed with, and above-mentioned ultrasonic impact device is vertically arranged; Described workbench is equipped with movement and transmission mechanism, and is connected with above-mentioned frame by this movement and transmission mechanism; The working surface of described workbench is equipped with the work piece holder of holding workpiece.
Above-mentioned movement and transmission mechanism comprises longitudinal transmission mechanism that the above-mentioned workbench of transmission is retreated, and adjusting operating platform is perpendicular to the transverse transmission mechanism of advance and retreat direction movement.
Above-mentioned longitudinal transmission mechanism comprises the longitudinal screw mandrel along above-mentioned workbench advance and retreat direction and above-mentioned frame pivot joint, the slide block matched with longitudinal screw mandrel, two are divided into longitudinal screw mandrel both sides and the guide post parallel with longitudinal screw mandrel, two guide runners matched with two guide posts respectively, to the motor that longitudinal screw mandrel drives, with to the advance and retreat controller that motor controls; Above-mentioned transverse transmission mechanism comprises the cross slide way be located on described slide block, two guide runners, to be formed at below described workbench and the chute matched with cross slide way, with the cross lead screw laterally driving described workbench, the operating side of described cross lead screw is equipped with driven by shaking handle; Described in described slide block, two, guide runner is connected to the below of described cross slide way.
Above-mentioned welding gun body is tungsten electrode argon arc welding gun, is equipped with argon bottle, the source of welding current and water-circulating cooling device; The working surface of above-mentioned workbench is embedded with correspondence and is padded on conduction copper backing plate below workpiece, and the weld seam of the corresponding workpiece of this conduction copper backing plate is formed with appearance of weld groove.
Above-mentioned welding gun body is connected with above-mentioned frame by the welding gun fixture of adjustable welding gun body plenum position; Above-mentioned ultrasonic impact device is connected with described frame by the ultrasonic wave fixture of adjustable ultrasonic impact device locus.
Above-mentioned welding gun body comprises staight shank welding gun, and above-mentioned welding gun fixture comprises staight shank welding gun fixture; Described staight shank welding gun fixture comprises fixture mount and clamping device one, and described fixture mount is T-shaped, comprises laterally extending plate anyhow, and vertical riser that is extending longitudinally and that be connected in the middle part of plate anyhow; Above-mentioned frame has transverse frame, and described transverse frame is formed with laterally extending bar shaped open-work one, and described plate is anyhow locked with described transverse frame through described bar shaped open-work one by bolt one; Described clamping device one comprises the jaw that two are divided into described vertical riser both sides, jaw described in two is articulated with described vertical riser by same bolt two, the free end of jaw described in two is formed to match and sandwiches the circular arc portion of described staight shank welding gun, and at least circular arc portion described in one is equipped to support and supports bolt inside staight shank welding gun to another circular arc portion, the internal diameter in described circular arc portion is greater than described staight shank welding gun accordingly by the external diameter of clamping part;
Above-mentioned ultrasonic wave fixture comprises the horizontal connecting plate be connected with described frame, the horizontal base be connected with horizontal connecting plate, is sheathed on outside above-mentioned ultrasonic impact device and the vertical sleeve be connected with horizontal base with mating; Described horizontal connecting plate is fixed together by bolt and described frame; Described horizontal connecting plate is formed with bar shaped open-work two extending longitudinally, and described horizontal base lock with described horizontal connecting plate through described bar shaped open-work two by bolt three, described horizontal base be formed for described ultrasonic impact device mate through through hole; The corresponding described through hole in described vertical sleeve one end and described horizontal base are fixed together, and the other end and described ultrasonic impact device are fixed together.
Above-mentioned ultrasonic impact device comprises the impact head high temperature weld metal of the not yet recovery strength that workpiece solidifies being carried out to ultrasonic impact, drive the impulse drive means that impact head shakes with ultrasonic frequency, and to the ultrasonic wave controller that impulse drive means controls.
The rifle head of above-mentioned welding gun body and the distance of above-mentioned impact head are 10-50mm; The end of described impact head is spherical, and diameter is 6-10mm; The distance of described rifle head and workpiece is 2-3mm.
After adopting technique scheme, Novel welding device of the present invention, break through the structural form of conventional welding devices, synchronous with welding gun body in company with mobile by ultrasonic impact device, in welding process, high temperature (more than the 400 DEG C) weld metal of the not yet recovery strength solidified on the certain position of rear, molten bath along welded piece thickness direction imposes the impact of ultrasonic frequency, and ultrasonic impact device and welding gun body servo-actuated relative to workpiece, by hyperacoustic exciting force effect, the weld metal being in condensation contraction state is impacted, produce longitudinal plastic extension, compensate the compression plastic strain produced in heating process, transient stress in welding process is reduced, and then reduction welding deformation, while the present invention reduces welding stress and distortion from amechanical angle, make use of again the high-frequency pulsation energy of excusing from death ripple to the effect of high temperature weld metal being in the not yet recovery strength solidified with plasticity, take into account the feature of Vibration Welding, can be used to improve commissure metallic crystal form, smash thick dendrite, thinning weld metal structure, and change the directionality of grain crystalline, make tissue be tending towards more uniform state, improve the mechanical property of weld from metallurgical angle.Compared with prior art, Novel welding device of the present invention, the welding residual stress and distortion that its uneven plastic deformation effectively eliminating commissure metal causes, improve weld strength, and holding workpiece original shape performance is good, simple and reliable for structure, new reasonable, little by welding space constraint, welding efficiency is high, the size adjustment of ultrasonic vibration is convenient, easily be automated, practical.
Accompanying drawing explanation
Fig. 1 is easy structure schematic diagram of the present invention;
Fig. 2 is planar structure schematic diagram of the present invention;
Fig. 3 is the structural representation of another state of Fig. 2;
Fig. 4 is the plan structure schematic diagram of Fig. 2;
Fig. 5 is the left TV structure schematic diagram of Fig. 2.
In figure:
1-welding gun body 11-argon bottle
12-source of welding current 13-water-circulating cooling device
14-balancing weight
2-ultrasonic impact device 21-impact head
22-impulse drive means 23-ultrasonic wave controller
3-frame 31-transverse frame
311-bar shaped open-work one
4-workbench 41-conduction copper backing plate
411-appearance of weld groove
The longitudinal transmission mechanism of 5-movement and transmission mechanism 51-
511-longitudinal screw mandrel 512-slide block
513-guide post 514-guide runner
515-motor 516-advance and retreat controller
52-transverse transmission mechanism 521-cross slide way
522-chute 523-cross lead screw
524-driven by shaking handle 6-work piece holder
7-welding gun fixture 71-staight shank welding gun fixture
711-fixture mount 7111-plate anyhow
The vertical perpendicular 7113-bolt one of 7112-
712-clamping device 7121-jaw
7122-circular arc portion 7123-supports bolt
The non-staight shank welding gun fixture of 7124-bolt 72-
8-ultrasonic wave folder 81-horizontal connecting plate
811-bar shaped open-work two 82-horizontal base
The vertical sleeve of 821-bolt three 83-
9-workpiece
Detailed description of the invention
In order to explain technical scheme of the present invention further, be described in detail below by specific embodiment.
A kind of Novel welding device of the present invention, as Figure 1-5, comprises welding gun body 1 and ultrasonic impact device 2.Defining towards the direction of workpiece 9 is front, be rear in the other direction, and workpiece 9 is advance and retreat direction (longitudinal direction) with the direction of welding gun body 1 relative motion, is transverse direction in horizontal plane perpendicular to the direction in advance and retreat direction.
Ultrasonic impact device 2 is located at the rear of welding gun body 1, and high temperature (more than the 400 DEG C) weld metal of the not yet recovery strength that alignment pieces 9 is solidified carries out ultrasonic impact.Synchronous with welding gun body 1 in company with mobile by ultrasonic impact device 2, till ultrasonic impact device 2 walks out workpiece 9 to be welded, in welding process, the high temperature weld metal of the not yet recovery strength solidified at certain position place, rear, molten bath along welded piece 9 thickness direction imposes the impact of ultrasonic frequency, and ultrasonic impact device 2 is servo-actuated relative to workpiece 9 with welding gun body 1, by hyperacoustic exciting force effect, the weld metal being in condensation contraction state is impacted to the plastic extension produced to surrounding especially longitudinal diffusion, compensate the compression plastic strain produced in heating process, decrease the amount of contraction of weld seam, transient stress in welding process is reduced, and then reduction welding deformation, while the present invention reduces welding stress and distortion from amechanical angle, make use of again the high-frequency pulsation energy of excusing from death ripple to the effect under being in high temperature with the weld metal that easy plastic deformation is solidified, take into account the feature of Vibration Welding, can be used to improve commissure metallic crystal form, smash thick dendrite, thinning weld metal structure, and change the directionality of grain crystalline, make tissue be tending towards more uniform state, improve the mechanical property of weld seam from metallurgical angle.
Preferably, also comprise frame 3, and the workbench 4 of place work piece 9, workbench 4 is located in frame 3; Welding gun body 1 and ultrasonic impact device 2 are located in frame 3, and to be in above workbench 4 corresponding workbench 4 from top to bottom, workpiece 9 is positioned on workbench 4, and welding gun body 1 and ultrasonic impact device 2 are all arranged in position directly over weld seam, arranges along axis of a weld longitudinal arrangement.Concrete structure can be, and frame 3 is packaged type, mainly comprises support body and balancing weight 14.Four pin of support body is respectively furnished with a height adjustment mechanism (not shown) be made up of bolt and two nuts.Four of support body being worn bolt is fixed in the middle of two nuts, can be adjusted the height of whole frame 3, lock top nut and just can fix after specified altitude assignment to be achieved by adjusting nut according to actual requirement, simple and practical.Two pieces of balancing weights 14 specifically can be adopted to increase rigidity and the stability of frame 3, and balancing weight 14 is secured by bolts in frame 3.
Preferably, workbench 4 is horizontally disposed with, and ultrasonic impact device 2 is vertically arranged; Workbench 4 is equipped with movement and transmission mechanism 5, and is connected with frame 3 by this movement and transmission mechanism 5; The working surface of workbench 4 is equipped with the work piece holder 6 of holding workpiece 9.Operationally, workpiece 9 is placed horizontally on workbench 4, workpiece 9 grips by work piece holder 6, under the driving of movement and transmission mechanism 5, workbench 4 drives workpiece 9 suitably to move relative to welding gun body 1 and ultrasonic impact device 2, realize the welding of welding gun body 1 pair of workpiece 9, and the high temperature weld metal of ultrasonic impact device 2 to the not yet recovery strength solidified impacts.Concrete structure can be, and work piece holder 6 is piano key clamp.Concrete operations parameter can be, and the scope of transverse shifting distance is 0-200mm, and maximum moving distance is 200mm; The scope of vertically moving is 0-410mm, and maximum displacement is 410mm, and the length according to welded piece 9 can suitably increase.
Preferably, movement and transmission mechanism 5 comprises longitudinal transmission mechanism 51 that transmission workbench 4 is retreated, and adjusting operating platform 4 is perpendicular to the transverse transmission mechanism 52 of advance and retreat direction movement.Namely longitudinal transmission mechanism 51 adjustable working table 4 drives workpiece 9 to the feeding realized in welding process and falls back, transverse transmission mechanism 52 adjustable working table 4 drives workpiece 9 to regulate to realize the mobile of lateral attitude, and then regulates that to realize workpiece 9 corresponding with welding gun body 1 and ultrasonic impact device 2.
Preferably, longitudinal transmission mechanism 51 comprises longitudinal screw mandrel 511 of to retreat along workbench 4 direction and frame 3 pivot joint, the slide block 512 matched with longitudinal screw mandrel 511, two are divided into longitudinal screw mandrel 511 both sides and the guide post 513 parallel with longitudinal screw mandrel 511, two guide runners 514 matched with two guide posts 513 respectively, to the motor 515 that longitudinal screw mandrel 511 drives, with to the advance and retreat controller 516 that motor 515 controls, two ends and the frame 3 of guide post 513 link together; Transverse transmission mechanism 52 comprises the cross slide way 521 be located on slide block 512, two guide runner 514, to be formed at below workbench 4 and the chute 522 matched with cross slide way 521, with the cross lead screw 523 laterally driving workbench 4, the operating side of cross lead screw 523 is equipped with driven by shaking handle 524; Slide block 512, two guide runner 514 is connected to the below of cross slide way 521.Advance and retreat controller 516 controls slewing rate and the direction of lower motor 515, drive longitudinal screw mandrel 511 to rotate with the speed of response and direction, longitudinal screw mandrel 511 drives slide block 512 to drive transverse transmission mechanism 52, workbench 4 and workpiece 9 to rely on coordinating the feeding sliding to realize in welding process and falling back of guide runner 514 and guide post 513; Shake driven by shaking handle 524, cross lead screw 523 is driven to rotate, cross lead screw 523 drives workbench 4 to drive workpiece 9 to rely on chute 522 to regulate with the movement sliding to realize lateral attitude that coordinates of cross slide way 521, and then regulates workpiece 9 corresponding with welding gun body 1 and ultrasonic impact device 2.Concrete structure can be, and each root guide post 513 has two balance uniform guide runner 514, chute 522 is dovetail groove, and cross slide way 521 and chute 522 match.
Preferably, welding gun body 1 is tungsten electrode argon arc welding gun, is equipped with argon bottle 11, the source of welding current 12 and water-circulating cooling device 13; The working surface of workbench 4 is embedded with correspondence and is padded on conduction copper backing plate 41 below workpiece 9, and the weld seam of the corresponding workpiece 9 of this conduction copper backing plate 41 is formed with appearance of weld groove 411.
In order to strengthen the performance-adjustable of welding gun body 1 and ultrasonic impact device 2, preferably, welding gun body 1 is connected with frame 3 by the welding gun fixture 7 of adjustable welding gun body 1 locus; Ultrasonic impact device 2 is connected with frame 3 by the ultrasonic wave fixture 8 of adjustable ultrasonic impact device 2 locus.
Preferably, welding gun body 1 comprises the common welding gun (not shown) of staight shank welding gun and non-staight shank, and welding gun fixture 7 comprises staight shank welding gun fixture 71; Staight shank welding gun fixture 71 comprises fixture mount 711 and clamping device 1, and fixture mount 711 is T-shaped, comprises laterally extending plate anyhow 7111, and vertical riser 7112 that is extending longitudinally and that be connected in the middle part of plate 7111 anyhow; Frame 3 has transverse frame 31, and transverse frame 31 is formed with laterally extending bar shaped open-work 1, and plate 7111 is locked through bar shaped open-work 1 and transverse frame 31 by bolt 1 anyhow; Clamping device 1 comprises the jaw 7121 that two are divided into vertical riser 7112 both sides, two jaws 7121 are articulated with vertical riser 7112 by same bolt 2 7124, the free end of two jaws 7121 is formed with the circular arc portion 7122 of the welding gun body 1 sandwiching staight shank welding gun form that matches, and at least one circular arc portion 7122 is equipped to support and supports bolt 7123 inside staight shank welding gun to another circular arc portion 7122, the internal diameter in circular arc portion 7122 is greater than described staight shank welding gun accordingly by the external diameter of clamping part;
Ultrasonic wave fixture 8 comprises the horizontal connecting plate 81 be connected with frame 3, the horizontal base 82 be connected with horizontal connecting plate 81, is sheathed on outside ultrasonic impact device 2 and the vertical sleeve 83 be connected with horizontal base 82 with mating; Horizontal connecting plate 81 is fixed together by bolt and frame 3; Horizontal connecting plate 81 is formed with bar shaped open-work 2 811 extending longitudinally, and horizontal base 82 is locked through bar shaped open-work 2 811 and horizontal connecting plate 81 by bolt 3 821, horizontal base 82 be formed for ultrasonic impact device 2 mate through through hole; The corresponding described through hole in vertical sleeve 83 one end and horizontal base 82 are fixed together, and the other end and ultrasonic impact device 2 are fixed together.
The internal diameter in the circular arc portion 7122 of two jaws 7121 is greater than the welding gun body 1 of staight shank welding gun form accordingly by the external diameter of clamping part, can ensure that welding gun body 1 is after unscrewing and supporting bolt 7123, namely the length that the welding gun body 1 of adjustable staight shank welding gun form is flexible downwards, screw after completing and lock, also rotate two jaws 7121 simultaneously by unscrewing bolt 2 7124 and drive the welding gun body 1 of staight shank welding gun form to rotate, regulate the angle of inclination of welding gun body 1, to adapt to actual needs; After unscrewing bolt 1, what the welding gun body 1 of staight shank welding gun form relied on bolt 1 and bar shaped open-work 1 by staight shank welding gun fixture 71 coordinates transverse shifting, realizes the position of the welding gun body 1 of lateral adjustments staight shank welding gun form;
After unscrewing bolt 3 821, ultrasonic impact device 2 relies on bolt 3 821 to vertically move with coordinating of bar shaped open-work 2 811 by ultrasonic wave fixture 8, realizes longitudinally regulating the position of ultrasonic impact device 2 and the object with welding gun body 1 spacing thereof; Operationally, horizontal base 82 and vertical sleeve 83 can effective mounting ultrasonic percussion mechanisms 2, and play guide effect, and the through hole of horizontal base 82 can be used as the impact tracks of ultrasonic impact device 2.The collapsing length of ultrasonic impact device 2 can be regulated as requested, also horizontal base 82 can be selected to be arranged at above or below horizontal connecting plate 81 according to the length of ultrasonic impact device 2.Concrete structure can be, horizontal connecting plate 81 is formed with the arc-shaped notch for welding gun body 1 and ultrasonic impact device 2 activity, horizontal base 82 is tabular, in " convex " font, two ends are erected on arc-shaped notch both sides by the subplate extended, and arc-shaped notch both sides are all connected by bar shaped open-work 2 811 and bolt 3 821 with two subplates of horizontal base 82, each device can not form interference, and relative position can adjust arbitrarily.
Preferably, ultrasonic impact device 2 comprises the impact head 21 high temperature weld metal of the not yet recovery strength that workpiece 9 solidifies being carried out to ultrasonic impact, drive the impulse drive means 22 that impact head 21 shakes with ultrasonic frequency, and to the ultrasonic wave controller 23 that impulse drive means 22 controls.Under the control of ultrasonic wave controller 23, impulse drive means 22 pairs of impact heads 21 drive, and make impact head 21 with ultrasonic frequency vibration, and the high temperature weld metal of the not yet recovery strength that corresponding workpiece 9 solidifies impact.
In order to make welding gun body 1 pair of workpiece 9 effectively weld, the high temperature weld metal of the not yet recovery strength that ultrasonic impact device 2 pairs of workpiece 9 solidify effectively impacts, and preferably, the rifle head of welding gun body 1 and the distance of impact head 21 are 10-50mm; The end of impact head 21 is spherical, and diameter is 6-10mm; The rifle head of welding gun body 1 and the distance of workpiece 9 are 2-3mm.The rifle head of welding gun body 1 and the distance of impact head 21 are more near better, the metal at welding gun body 1 rear just solidifies, still be in high temperature (under high temperature, the yieldlimitσs of metal is extremely low), so only with smaller impulsive force percussion weld metal, just need can play the plastic extension effect of butt welded seam.But can not be too near, if too near weld metal is still in molten condition, if impact this moment, be easy to weld seam to puncture.If the rifle head of welding gun body 1 and impact head 21 apart from too far away, the complete recovery strength of weld metal, σ s improves greatly, even if also cannot carry out plastic extension by butt welded seam by power large more like this, does not reach expected effect.Generally, if ultrasonic impact device 2 wants Resistance of Weld Metal to play plastic extension effect, the distance of the rifle head and impact head 21 that need control welding gun body 1 is that the effect between 10-50mm is better.Concrete optimum distance is determined according to the material of workpiece 9 to be welded, size and thickness.
Novel welding device of the present invention, the rifle head of welding gun body and the concrete distance of impact head can carry out adjusting and designing according to actual requirement; The shape and size etc. of impact head end also can be carried out adjusting and designing according to actual requirement; The rifle head of welding gun body and the concrete distance of workpiece can carry out adjusting and designing according to actual requirement; Ultrasonic impact device at least comprises impact head, impulse drive means and ultrasonic wave controller, other parts can be arranged according to reality, as ultrasonic transformer, vibration damping sheet etc., say in a broad sense, the form of ultrasonic impact device also can carry out choosing and designing according to actual requirement; The concrete shape of horizontal connecting plate, horizontal base and vertical sleeve and size etc. can be carried out adjusting and designing according to actual requirement, and say in a broad sense, the form of ultrasonic wave fixture also can be carried out adjusting and designing according to actual requirement; Welding gun fixture preferably includes staight shank welding gun fixture and common welding gun fixture, can choose staight shank welding gun and/or common welding gun uses according to actual requirement, and the form of welding gun body can carry out choosing and designing according to actual requirement; The form of longitudinal transmission mechanism and transverse transmission mechanism also can carry out adjusting and designing according to actual requirement, and say in a broad sense, the form of movement and transmission mechanism also can carry out adjusting and designing according to actual requirement; Labor cost fixture is preferably piano key clamp, and its form also can carry out adjusting and designing according to actual requirement; The concrete form of workbench, frame and can carry out adjusting and designing according to actual requirement with the particular location relation of welding gun body and ultrasonic impact device and type of attachment, as frame specifically can comprise the platform frame for carrying workbench, with the welding stand for carrying welding gun body and ultrasonic impact device, and the concrete form of platform frame and welding stand also can carry out adjusting and designing according to actual requirement; The bolt quantity of each bolt junction and distribution form etc. can carry out adjusting and designing according to actual requirement.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present invention.
Claims (4)
1. a Novel welding device, comprises welding gun body, it is characterized in that: the high temperature weld metal that the rear of described welding gun body is provided with the not yet recovery strength that alignment pieces is solidified carries out the ultrasonic impact device of ultrasonic impact; Above-mentioned ultrasonic impact device comprises the impact head high temperature weld metal of the not yet recovery strength that workpiece solidifies being carried out to ultrasonic impact, drive the impulse drive means that impact head shakes with ultrasonic frequency, and to the ultrasonic wave controller that impulse drive means controls;
Also comprise frame, and the workbench of place work piece, described workbench is located in described frame; Above-mentioned welding gun body and ultrasonic impact device are located in described frame, and to be in above described workbench corresponding workbench from top to bottom;
Above-mentioned workbench is horizontally disposed with, and above-mentioned ultrasonic impact device is vertically arranged; Described workbench is equipped with movement and transmission mechanism, and is connected with above-mentioned frame by this movement and transmission mechanism; The working surface of described workbench is equipped with the work piece holder of holding workpiece;
Above-mentioned movement and transmission mechanism comprises longitudinal transmission mechanism that the above-mentioned workbench of transmission is retreated, and adjusting operating platform is perpendicular to the transverse transmission mechanism of advance and retreat direction movement;
Above-mentioned longitudinal transmission mechanism comprises the longitudinal screw mandrel along above-mentioned workbench advance and retreat direction and above-mentioned frame pivot joint, the slide block matched with longitudinal screw mandrel, two are divided into longitudinal screw mandrel both sides and the guide post parallel with longitudinal screw mandrel, two guide runners matched with two guide posts respectively, to the motor that longitudinal screw mandrel drives, with to the advance and retreat controller that motor controls; Above-mentioned transverse transmission mechanism comprises the cross slide way be located on described slide block, two guide runners, to be formed at below described workbench and the chute matched with cross slide way, with the cross lead screw laterally driving described workbench, the operating side of described cross lead screw is equipped with driven by shaking handle; Described in described slide block, two, guide runner is connected to the below of described cross slide way;
The rifle head of above-mentioned welding gun body and the distance of above-mentioned impact head are 10-50mm; The end of described impact head is spherical, and diameter is 6-10mm; The distance of described rifle head and workpiece is 2-3mm.
2. a kind of Novel welding device according to claim 1, is characterized in that: above-mentioned welding gun body is tungsten electrode argon arc welding gun, is equipped with argon bottle, the source of welding current and water-circulating cooling device; The working surface of above-mentioned workbench is embedded with correspondence and is padded on conduction copper backing plate below workpiece, and the weld seam of the corresponding workpiece of this conduction copper backing plate is formed with appearance of weld groove.
3. a kind of Novel welding device according to any one of claim 1-2, is characterized in that: above-mentioned welding gun body is connected with above-mentioned frame by the welding gun fixture of adjustable welding gun body plenum position; Above-mentioned ultrasonic impact device is connected with described frame by the ultrasonic wave fixture of adjustable ultrasonic impact device locus.
4. a kind of Novel welding device according to claim 3, is characterized in that: above-mentioned welding gun body comprises staight shank welding gun, and above-mentioned welding gun fixture comprises staight shank welding gun fixture; Described staight shank welding gun fixture comprises fixture mount and clamping device one, and described fixture mount is T-shaped, comprises laterally extending plate anyhow, and vertical riser that is extending longitudinally and that be connected in the middle part of plate anyhow; Above-mentioned frame has transverse frame, and described transverse frame is formed with laterally extending bar shaped open-work one, and described plate is anyhow locked with described transverse frame through described bar shaped open-work one by bolt one; Described clamping device one comprises the jaw that two are divided into described vertical riser both sides, jaw described in two is articulated with described vertical riser by same bolt two, the free end of jaw described in two is formed to match and sandwiches the circular arc portion of described staight shank welding gun, and at least circular arc portion described in one is equipped to support and supports bolt inside staight shank welding gun to another circular arc portion, the internal diameter in described circular arc portion is greater than described staight shank welding gun accordingly by the external diameter of clamping part;
Above-mentioned ultrasonic wave fixture comprises the horizontal connecting plate be connected with described frame, the horizontal base be connected with horizontal connecting plate, is sheathed on outside above-mentioned ultrasonic impact device and the vertical sleeve be connected with horizontal base with mating; Described horizontal connecting plate is fixed together by bolt and described frame; Described horizontal connecting plate is formed with bar shaped open-work two extending longitudinally, and described horizontal base lock with described horizontal connecting plate through described bar shaped open-work two by bolt three, described horizontal base be formed for described ultrasonic impact device mate through through hole; The corresponding described through hole in described vertical sleeve one end and described horizontal base are fixed together, and the other end and described ultrasonic impact device are fixed together.
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| CN104785905B (en) * | 2015-04-01 | 2017-03-22 | 浙江工业大学 | Welding device for preventing welding heat crack and deformation |
| CN106994577B (en) * | 2017-04-19 | 2018-09-28 | 重庆佛思坦智能装备有限公司 | A kind of mold 3D built-up welding intelligent robots |
| CN108176913A (en) * | 2018-02-01 | 2018-06-19 | 三峡大学 | Electromagnetic field and the electric arc increasing material manufacturing method and apparatus for being forced to process compound auxiliary |
| CN108213688A (en) * | 2018-02-09 | 2018-06-29 | 中国人民解放军陆军装甲兵学院 | A kind of ultrasonic vibration assists soldering test device |
| CN114951904B (en) * | 2022-05-07 | 2024-05-14 | 山东森峰激光装备有限公司 | Welding-following ultrasonic impact vibration device for arc additive manufacturing |
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