CN1927530A - Apparatus for controlling welding stress deformation depending on welding friction extrusion - Google Patents
Apparatus for controlling welding stress deformation depending on welding friction extrusion Download PDFInfo
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- CN1927530A CN1927530A CN 200610150852 CN200610150852A CN1927530A CN 1927530 A CN1927530 A CN 1927530A CN 200610150852 CN200610150852 CN 200610150852 CN 200610150852 A CN200610150852 A CN 200610150852A CN 1927530 A CN1927530 A CN 1927530A
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Abstract
The invention relates to a device for controlling the welding stress deformation. Wherein, it uses three rotation friction rods at special shape to friction and compress different areas at the welding contactor, to deform and flow the metal at said part; and it has front and back friction rods (6, 11), while the end of front one (6) is compressed at the welding toe of welding seam, and back one (11) is vertical to the welding seam; the friction rods will pressurize the welding seam when moving forwards; the fixed platform (4) is under the lifting plate (3); the fixed platform (4) has front friction rod installer and back friction rod installer under. The maximum longitudinal deformation and transverse reduction of inventive product are reduced significantly.
Description
Technical field
The present invention relates to a kind of device that can control welding stress deformation.
Background technology
The thin walled welds member of material such as titanium, aluminium alloy has in light weight, specific strength advantages of higher, but these structures are some aluminium alloy structures particularly, when welding processing, hot cracking tendency is big, the welding stress deformation problem is very outstanding, often need postwelding to carry out orthopedic, stress-removal processing, even, process-cycle and cost are increased considerably because fire check causes waste product.For addressing the above problem, prestretched method, static state and dynamic temperature difference pulling method were once proposed, both at home and abroad with the weldering rolled-on method, with several different methods such as weldering hammering method, weld with trailing impactive rolling methods.These methods prevent aspect the fire check certain effect is arranged all in the distortion of control welding residual stress, but also all have weak point.The prestretched method is difficult to extensive use owing to be subjected to the restriction of stretcher and weld seam form; Static thermal tension method needs the preheating of long period in order to reach the required temperature difference, makes thermal treatment zone metal softening easily, and has worsened condition of work, and complicated operation, production efficiency is low, production cost is higher; Dynamic temperature difference pulling method water spray pollutes welding pool easily, cause the weld seam shortcoming, influence welding efficiency and quality, and the cost in the flexible contact Quench of cooled with liquid nitrogen source is too high.In addition, be the cross-direction shrinkage of static thermal tension or dynamic temperature difference stretching all can not reduction weld seam, be unfavorable for the control of closed weld buckling deformation and prevent fire check, thereby the thermal tension method is not suitable for the welding of closed weld; Huge with weldering rolled-on method equipment, the manufacturing cost height, application mainly concentrates on the welding of welding weld seam, relatively large cylindrical shell longitudinal joint and the circumferential weld of long straight flat board, and it is relatively stricter to the welded part shape need, owing to mainly exert pressure by rolling axle, so the size of rolling wheel is bigger, getatability is poor, can't satisfy requirements of actual production; Owing to the direct hammering welding bead of toe both sides, hammering face is coarse with the weldering hammering method, and working surface fineness is poor, and tup beat vibration simultaneously is bigger, needs extra interpolation guiding mechanism, implements the comparison difficulty when the actual welding closed weld; The weld with trailing impactive rolling method has effectively overcome with the weldering hammering with some shortcomings of welding rolled-on method, realized the welding of the dull and stereotyped butt joint of aluminum alloy thin wall construction low stress small deformation, but noise is bigger during operation, poor working environment, and the influence of be hit rolling wheel and welding gun size, the wheel rifle is apart from satisfying theoretical ideal value, and promptly the weld metal of front wheel felloe below has influenced the control effect to HOT CRACK FOR WELDING P not in brittle temperature range.
Summary of the invention
There is the problem that equipment is huge, cost is high, noise reaches poor working environment greatly in the device that adopts in order to solve welding stress deformation at people, and existing solution welding stress deformation method exists complicated operation, low, the ropy drawback of efficient, the invention provides a kind of device of controlling welding stress deformation depending on welding friction extrusion, it can be controlled welding stress deformation admirably and prevent the generation of fire check, thereby can improve the quality of welding point.The present invention includes supporting seat 1 and the lifter plate 3 that is connected by lifting screw 2 with supporting seat 1, below lifter plate 3, be provided with fixed platform 4, friction lever assembling device 25 after being provided with the identical preceding friction lever assembling device 24 of two structures and one below the described fixed platform 4, two preceding friction lever assembling devices 24 are arranged side by side the end in fixed platform, described back friction lever assembling device 25 is arranged on the centre position at two preceding friction lever assembling device 24 rear portions, and described two preceding friction lever assembling devices 24 all are connected with drive unit 10 with the end face of back friction lever assembling device 25; Before described friction lever assembling device 24 comprise motor 5 with the coaxial preceding friction lever 6 that is connected of the output shaft of a motor 5; Before friction lever assembling device 24 also comprise lower shoe 7 and a guide pillar 8 of fixedlying connected with lower shoe 7, a described motor 5 is fixed on upper plate 13, be fixed with two slides on the upper plate 13, be respectively a slide 9-1 and No. two slide 9-2, described two slides are arranged on guide pillar 8; Friction lever assembling device 24 is connected with fixed platform 4 by a lower shoe 7 before described; Described back friction lever assembling device 25 comprise No. two motors 5 ' with No. two motors 5 ' the coaxial back friction lever 11 that is connected of output shaft; Back friction lever assembling device 25 also comprise No. two lower shoes 7 ' with No. two guide pillars 8 of No. two lower shoes 7 ' fixedly connected ', No. two upper plates 13 of described No. two motors 5 ' be fixed on ' on, No. two upper plates 13 ' on be fixed with two slides, be respectively No. three slide 9-1 ' and No. four slide 9-2 ', described two slides be arranged on No. two guide pillars 8 ' on; Described back friction lever assembling device 25 is by No. two lower shoes 7 ' be connected with fixed platform 4; The termination of the lower shoe 7 of described two preceding friction lever assembling devices 24 is carried out relative position by stiffener 12 and is fixed.
Adopt the device of controlling welding stress deformation depending on welding friction extrusion of the present invention that the straight weld seam of thin plate aluminium alloy is carried out with after the processing of weldering friction and Extrusion, the maximum vertically deflection deformation amount and the cross-direction shrinkage of test specimen obviously descend; No matter improved welding point residual stress amplitude and distribution, be longitudinal residual stress or horizontal residual stress, and amplitude all can be reduced to lower level, and weld seam centre longitudinal stress changes compressive stress state into by tensile stress state.Thin plate aluminium alloy planar surface encloses weld seam is carried out with after the processing of weldering friction and Extrusion, and the compression peak value in most of zone, the weld seam outside is less than critical jitter stress, and the maximum residual deformation amount of workpiece is very little, and test specimen is very smooth.With the obvious refinement of weldering friction and Extrusion weld metal zone crystal grain, weld defects such as pore, shrinkage porosite, micro-crack significantly reduce dense structure; Joint is strengthened, and performances such as tensile strength and fatigue life all improve a lot.And the present invention carries out with weldering, does not need preheating, and is therefore simple to operate, production efficiency is high, cost is low; In addition, the present invention does not require the weldment shape, can be applied to the weldment of different shape, thereby can satisfy various actual needs; Described device has the advantage that volume is little, equipment investment is little, the operating environment noise is little, adopts this device control postwelding residual stress distortion and prevents the fire check works very well, can effectively guarantee the good quality of postwelding joint, therefore is beneficial to and applies.
The mechanism that the present invention is based on welding stress deformation and fire check generation proposes, its operation principle as shown in Figure 1, it is that spin friction pole pair welding point zones of different by three given shapes applies the friction and Extrusion effect, force this part metal to flow along the direction generation plastic deformation of needs, the direction and the size of the rheology of control plastic deformation, thus reach the purpose that reduces residual stress, reduces to be out of shape, to prevent HOT CRACK FOR WELDING P.Label 21 is a welding gun among Fig. 1, and the straight arrows direction is a welding direction.Operation principle specifically is expressed as: two preceding friction levers 6 are by the incorgruous rotation of driven by motor, and apply certain pressure by pneumatic means or hydraulic means, the angled both sides that are arranged symmetrically in the weld seam center make the abrasive end face of two preceding friction levers be pressed in the toe of weld position tightly.Two preceding friction levers 6 follow the back at welding arc closely on welding direction, the distance before suitably regulating between friction lever and the welding arc, and the weld metal of friction lever abrasive end face below is in the brittle temperature range before making.Back friction lever 11 also by the driven by motor rotation, applies certain pressure by pneumatic means or hydraulic means, vertically acts on the weld seam position.Select appropriate front and back distance between tie rods during welding, the weld metal of friction lever abrasive end face below, back is cooled to below the brittle temperature range, but still is in the high-ductility state.Two preceding friction levers 6 force weld metal from toe of weld to the weld seam center flow, thereby the weld metal that is in brittle temperature range has been applied a horizontal racking strain, the elongation strain that reduces even offset fracturing has prevented the generation of HOT CRACK FOR WELDING P.The butt welded seam metal pushed when back friction lever 11 rotated at a high speed, force weld metal to two side flow, the vertical and horizontal compressive plastic deformation that weld metal is formed in cooling procedure and all fully extended by the transverse compression distortion that friction levers before two cause in weld seam plays the effect that reduces residual stress, reduces welding deformation.During work, front and back friction lever high speed turning effort has strong vibration stirring action in weld metal to liquid metal in the molten bath, the nucleation rate of weld metal in crystallization process increased greatly, and upset the directionality of metallic crystal, thereby made weld metal grain refinement, distributed components.Because the high-speed friction effect of two preceding friction lever butt welded seam metals, changed molten bath field of welding temperature on every side, make of the ultimate range increasing of the back edge of brittle temperature range to the center, molten bath, the weld metal of two preceding friction lever abrasive end face belows is positioned at brittle temperature range, thereby the effect of control HOT CRACK FOR WELDING P is splendid.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present invention, Fig. 2 is an overall structure schematic diagram of the present invention, Fig. 3 is the structural representation of preceding friction lever assembling device 24, Fig. 4 is the structural representation of back friction lever assembling device 25, Fig. 5 is the apparatus structure schematic diagram of the specific embodiment six described controlling welding stress deformation depending on welding friction extrusion, and Fig. 6 is the left view of Fig. 5.
The specific embodiment
The specific embodiment one: (referring to Fig. 2, Fig. 5) present embodiment is made up of friction lever assembling device 25 behind supporting seat 1, lifting screw 2, lifter plate 3, two preceding friction lever assembling devices 24 that structure is identical and, supporting seat 1 is connected the handle 22 that can be provided for rotating during use by lifting screw 2 on lifting screw 2 with lifter plate 3; Below lifter plate 3, be provided with fixed platform 4, friction lever assembling device 25 after being provided with the identical preceding friction lever assembling device 24 of two structures and one below the described fixed platform 4, two preceding friction lever assembling devices 24 are arranged side by side the end in fixed platform, described back friction lever assembling device 25 is arranged on the centre position at two preceding friction lever assembling device 24 rear portions, and described two preceding friction lever assembling devices 24 all are connected with drive unit 10 with the end face of back friction lever assembling device 25; The angle that forms between described two preceding friction levers 6 can be determined according to the shape of weld width and weld reinforcement, be generally the 30-60 degree, when weld width broad and weld reinforcement were big, the angle that forms between two preceding friction levers 6 was taken off limit, otherwise, capping then.
Described supporting seat 1 by the concrete structure that lifting screw 2 is connected with lifter plate 3 is: with reference to Fig. 5, described lifter plate 3 lower ends are provided with central stepped 3-1, thrust bearing 19 is housed in the central stepped 3-1, and the lower end of described lifting screw 2 is provided with the shaft shoulder, and the shaft shoulder is arranged on the lower end of thrust bearing 19; Described supporting seat 1 is provided with nut 1-1, and described lifting screw 2 is connected with nut 1-1.
Before described friction lever assembling device 24 comprise motor 5 with the coaxial preceding friction lever 6 that is connected of the output shaft of a motor 5; Before friction lever assembling device 24 also comprise lower shoe 7 and a guide pillar 8 of fixedlying connected with lower shoe 7, a described motor 5 is fixed on upper plate 13, be fixed with two slides on the upper plate 13, be respectively a slide 9-1 and No. two slide 9-2, described two slides are arranged on guide pillar 8; Friction lever assembling device 24 is connected with fixed platform 4 by a lower shoe 7 before described;
Described back friction lever assembling device 25 comprise No. two motors 5 ' with No. two motors 5 ' the coaxial back friction lever 11 that is connected of output shaft; Back friction lever assembling device 25 also comprise No. two lower shoes 7 ' with No. two guide pillars 8 of No. two lower shoes 7 ' fixedly connected ', No. two upper plates 13 of described No. two motors 5 ' be fixed on ' on, No. two upper plates 13 ' on be fixed with two slides, be respectively No. three slide 9-1 ' and No. four slide 9-2 ', described two slides be arranged on No. two guide pillars 8 ' on; Described back friction lever assembling device 25 is by No. two lower shoes 7 ' be connected with fixed platform 4;
The termination of the lower shoe 7 of described two preceding friction lever assembling devices 24 is carried out relative position by stiffener 12 and is fixed.Three connectors 18 can be set on fixed platform 4, two sides that are arranged side by side in fixed platform wherein, another connector is arranged on the centre position of opposite side, lower shoe 7 on described two preceding friction lever assembling devices 24 is connected with two connectors 18 that are arranged side by side by axle 27 respectively, and the lower shoe 7 on the described back friction lever assembling device 25 is connected with another connector.Described connector 18 and fixed platform 4 be connected and with stiffener 12 and being connected of two lower shoes 7 can be the hole and being connected of slotted hole, the angle of inclination of friction lever 6 before can adjusting by the position of bolt on slotted hole of adjusting this two place, and guarantee to be arranged symmetrically in the both sides at weld seam center with two preceding friction levers 6 in the weldering control procedure, the axis normal that guarantees back friction lever 11 simultaneously is in the welding work pieces surface and be positioned at plane by axis of a weld, the length of the distance of the abrasive end face of back friction lever 11 and fixed platform 4 lower surfaces by friction lever be installed position adjustment.
Before the work, supporting seat 1 is fixed on the workbench 23, adjust the angle of the symmetry inclination between two preceding friction levers and the perpendicularity of back friction lever, after finishing, turning handle 22, whole device is fallen, make friction lever end face and surface of the work to be welded keep certain distance, the distance of preceding friction lever end face and surface of the work generally should be less than 1/3rd of weld reinforcement, the end face of back friction lever and the distance of surface of the work generally should be less than 2/3rds of weld reinforcements, and concrete numerical value can carry out suitable adjustment according to the shape of weld seam.During work, the electric arc that ignites earlier welding is treated after the molten bath occurs welding work pieces to be advanced to the electric arc rear, and then starts motor 5 and starts drive unit 10 butt welded seams and carry out with weldering control.Two preceding friction levers 6 follow closely after the welding arc, and the toe of weld position butt welded seam metal that tightly is pressed in the weld seam both sides is rotated extruding.Because when preceding friction lever 6 rotations are pushed, its end face butt welded seam metal has a transverse component to the extruding of weld seam center, simultaneously, before the end-acted zone of friction lever nearer from welding pool, temperature is higher, the temperature in weld seam centre is higher than toe of weld position temperature, plastic metal is easier of the weld seam center flow when being squeezed, the friction lever end face just applies a horizontal racking strain to the metal that is in brittle temperature range like this, thereby offset the elongation strain of energy fracturing, reach the purpose that prevents HOT CRACK FOR WELDING P.Back friction lever 11 vertically acts on the weld seam position, to being cooled to below the brittle temperature range but still the weld metal that is in the high-ductility state is rotated extruding.When the end face of back friction lever 11 pushes rotation downwards, force weld metal to two side flow, the vertical and horizontal compressive plastic deformation that weld metal is formed in cooling procedure and all fully extended by the transverse compression distortion that friction levers before two cause in weld seam mainly plays and reduces the effect that residual stress reduces welding deformation.
The specific embodiment two: the difference of (referring to Fig. 3, Fig. 4) present embodiment and the specific embodiment one is to be provided with two bearings on lower shoe 7, be respectively a bearing 14-1 and No. two bearing 14-2, the two ends of described guide pillar 8 are fixed by a bearing 14-1 and No. two bearing 14-2; Between No. two slide 9-2 and No. two bearing 14-2, compression spring 15 is installed.Other composition is identical with the specific embodiment one with annexation.The effect of compression spring 15 is suitably to control the distance between friction lever and the weld seam, promoting friction lever decline butt welded seam by drive unit 10 during work exerts pressure, drive unit 10 stops friction lever being pressurizeed when quitting work, then friction lever is upspring under the promotion of compression spring 15, and the gravity butt welded seam of friction lever pressurizes and the generation counter productive when avoiding not working.
The specific embodiment three: (referring to Fig. 3, Fig. 4) present embodiment and the specific embodiment two differences are, between a bearing 14-1 and No. two bearing 14-2, also be provided with bearing 14-3 No. three, No. three bearing 14-3 are arranged between slide 9-1 and No. two slide 9-2, on the guide pillar 8 between No. three bearing 14-3 and No. two slide 9-2, be provided with slide block 16, on No. three bearing 14-3, be provided with pressurization bolt 17.During work, thus can be by the preceding progress of rotation pressurization bolt 17 on No. three bearings by No. two positions of slide 9-2 on guide pillar 8 of slide block 16 controls, thus play restriction slide and the axial displacement of attaching parts and the effect of preloading spring.
The specific embodiment four: (referring to Fig. 2-Fig. 4) the described drive unit 10 of present embodiment acts on the end face of motor 5, described drive unit 10 is cylinders, has the handled easily advantage of control easily with cylinder as drive unit, act directly on the end face of motor and power can be directly passed to friction lever, be easy to control.Also can use hydraulic cylinder to replace cylinder during practical operation, also masterpiece can be used on the upper plate 13, also can realize the object of the invention, therefore all within protection scope of the present invention.
The specific embodiment five: (referring to Fig. 5) present embodiment also is provided with two shoulder hole 3-2 on lifter plate 3, the lower end of guide pillar 20 is fixed by shoulder hole 3-2, and described supporting seat 1 is provided with the hole of passing through for guide pillar 20.The effect of guide pillar 20 is to make lifter plate 3 and fixed platform 4 to keep and axially consistent mobile of lifting screw 2, has avoided moving radially and may cause friction lever effectively not align weld seam and influence final effect.
The specific embodiment six: (referring to Fig. 2, Fig. 3, Fig. 5 and Fig. 6) present embodiment provides a kind of detailed device structure that realizes described goal of the invention, it by preceding friction lever assembling device 24, back friction lever assembling device 25, stiffener 12, bolt 26, connector 18, axle 27, fixed platform 4, bolt 28, lifter plate 3, bolt 29, bolt 30, supporting seat 1, guide pillar 20, bolt 31, cover 32 thoroughly, handle 22, nut 1-1, lifting screw 2, thrust bearing 19, holding screw 33, bolt 34, bolt 35 and pneumatic compression system (drive unit) 10 form.Label 23 is a workbench.Preceding friction lever assembling device 24 is connected with connector 18 by axle 27, and connector 18 is connected with fixed platform 4 by bolt 28, and lifter plate 3 is connected with fixed platform 4 by bolt 29.Lifter plate 3 is provided with three shoulder holes, the shoulder hole 3-1 of middle is in order to pack thrust bearing 19 and pass lifting screw 2 into, lifting screw 2 is provided with the shaft shoulder, and it keeps off in the collar of thrust bearing 19, and the shoulder hole 3-2 of both sides is in order to pass and fixing guide pillar 20.Embed in the supporting seat 1 and by holding screw 33 tightenings with lifting screw 2 nut engaged 1-1, its end face is covered 32 usefulness bolts, 31 axial restraints thoroughly.Supporting seat 1 is provided with two guide holes, and it cooperates with two guide pillars 20.Supporting seat 1 is fixed on the upper surface of workbench 23 by bolt 30.Handle 22 is equipped with in the upper end of lifting screw 2.Back friction lever assembling device 25 is connected and fixed by bolt 35 and connector 18, and connector 18 is connected on the fixed platform 4 by bolt 34.The median plane symmetric arrangement of two whole devices of preceding friction lever assembling device 24 references, it is fixedly connected by bolt 26 that they locate to be reinforced plate 12 endways.The source pressure of present embodiment is provided by pneumatic compression system 10, and it is to act on the end face of motor or the extruding force that other position produces friction lever end face butt welded seam by pneumatic actuation element (cylinder).
With reference to Fig. 3, preceding friction lever assembling device 24 is made up of preceding friction lever 6, chuck 36, axle 37, bearing block 38, pressurization bolt 17, shaft coupling 39, motor 5, base plate 13, end cap 40, bearing 14-1, No. two bearing 14-2, No. three bearing 14-3, slide 9-1, No. two slide 9-2, guide pillar 8, slide block 16, a compression spring 15 and a lower shoe 7.The output shaft of a motor 5 connects by a shaft coupling 39 and an axle 37, No. one axle 37 is connected with preceding friction lever 6 by a chuck 36, bearing block 38, motor 5, slide 9-1 and No. two slide 9-2 be by being bolted on upper plate 13, and bearing 14-1, No. two bearing 14-2, No. three bearing 14-3 are by being bolted on lower shoe 7.Two guide pillars 8 that are arranged in parallel are supported by bearing 14-1, No. two bearing 14-2 and No. three bearing 14-3 and by bearing 14-1, No. two bearing 14-2 and end cap 40 axial location.A slide 9-1 and No. two slide 9-2 are sitting on two guide pillars 8 by the guide hole on it, can drive upper plate 13 and attaching parts thereof and slide on a guide pillar 8.Be placed with compression spring 15 No. one on the guide pillar between No. two slide 9-2 and No. two bearing 14-2, a pressurization bolt 17 withstands on the surface of a slide block 16 from the screw screw-in of No. three bearing 14-3, promote No. two bearing 14-2 slippages forward, thereby a compression compression spring 15 plays No. two slide 9-2 of restriction and the axial displacement of attaching parts and the effect of preloading spring.
The structure of back friction lever assembling device 25 is identical with the structure of preceding friction lever assembling device 24, with reference to Fig. 4, back friction lever assembling device 25 is by back friction lever 11, No. two chucks 36 ', No. two axles 37 ', No. two bearing blocks 38 ', No. two pressurization bolt 17 ', No. two shaft couplings 39 ', No. two motors 5 ', No. two base plates 13 ', No. two end caps 40 ', No. four bearing 14-1 ', No. five bearing 14-2 ', No. six bearing 14-3 ', No. three slide 9-1 ', No. four slide 9-2 ', No. two guide pillars 8 ', No. two slide blocks 16 ', No. two compression spring 15 ' and No. two lower shoe 7 ' compositions.No. two motors 5 ' output shaft by No. two shaft couplings 39 ' with No. two axle 37 ' connections, No. two axles 37 ' by No. two chucks 36 ' be connected with back friction lever 11, No. two bearing blocks 38 ', No. two motors 5 ', No. three slide 9-1 ' and No. four slide 9-2 ' by be bolted to No. two upper plates 13 ' on, No. four bearing 14-1 ', No. five bearing 14-2 ', No. six bearing 14-3 ' by be bolted to No. two lower shoes 7 ' on.Two No. two guide pillars 8 that are arranged in parallel ' by No. four bearing 14-1 ', No. five bearing 14-2 ' and No. six bearing 14-3 ' supports and by No. four bearing 14-1 ', No. five bearing 14-2 ' and No. two end cap 40 ' axial location.No. three slide 9-1 ' and No. four slide 9-2 ' by the guide hole on it be sitting in two No. two guide pillars 8 ' on, can drive No. two upper plates 13 ' and attaching parts No. two guide pillars 8 ' on slide.Be placed with on the guide pillar that No. four slide 9-2 ' and No. five are between bearing 14-2 ' No. two compression springs 15 ', No. two pressurization bolt 17 ' from the screw of No. six bearing 14-3 ' screw in withstand on No. two slide blocks 16 ' the surface, promote No. five bearing 14-2 ' slippages forward, thus No. two compression compression springs 15 ' play No. four slide 9-2 ' of restriction and the axial displacement of attaching parts and the effect of preloading spring.
Claims (8)
1, a kind of device of controlling welding stress deformation depending on welding friction extrusion, it is characterized in that it comprises supporting seat (1) and the lifter plate (3) that is connected by lifting screw (2) with supporting seat (1), be provided with fixed platform (4) in the below of lifter plate (3), friction lever assembling device (25) after the below of described fixed platform (4) is provided with the identical preceding friction lever assembling device (24) of two structures and one, two preceding friction lever assembling devices (24) are arranged side by side the end in fixed platform, described back friction lever assembling device (25) is arranged on the centre position at two preceding friction lever assembling devices (24) rear portion, and described two preceding friction lever assembling devices (24) all are connected with drive unit (10) with the end face of back friction lever assembling device (25);
Described before friction lever assembling device (24) comprise a motor (5) with the coaxial preceding friction lever (6) that is connected of the output shaft of a motor (5); Preceding friction lever assembling device (24) also comprises a lower shoe (7) and a guide pillar (8) of fixedlying connected with a lower shoe (7), a described motor (5) is fixed on the upper plate (13), be fixed with two slides on the upper plate (13), be respectively a slide (9-1) and No. two slides (9-2), described two slides are arranged on the guide pillar (8); Friction lever assembling device (24) is connected with fixed platform (4) by a lower shoe (7) before described;
Described back friction lever assembling device (25) comprise No. two motors (5 ') with the coaxial back friction lever (11) that is connected of the output shaft of No. two motors (5 '); Back friction lever assembling device (25) also comprises No. two lower shoes (7 ') and No. two guide pillars (8 ') of fixedlying connected with No. two lower shoes (7 '), described No. two motors (5 ') are fixed on No. two upper plates (13 '), be fixed with two slides on No. two upper plates (13 '), be respectively No. three slides (9-1 ') and No. four slides (9-2 '), described two slides are arranged on No. two guide pillars (8 '); Described back friction lever assembling device (25) is connected with fixed platform (4) by No. two lower shoes (7 ');
The termination of the lower shoe (7) of described two preceding friction lever assembling devices (24) is carried out relative position by stiffener (12) and is fixed.
2, the method for a kind of controlling welding stress deformation depending on welding friction extrusion according to claim 1 is characterized in that the angle that forms between two preceding friction levers (6) is the 30-60 degree.
3, the device of a kind of controlling welding stress deformation depending on welding friction extrusion according to claim 1 and 2, it is characterized in that on lower shoe (7), being provided with two bearings, be respectively a bearing (14-1) and No. two bearings (14-2), the two ends of described guide pillar (8) are fixed by a bearing (14-1) and No. two bearings (14-2); Compression spring (15) is installed between No. two slides (9-2) and No. two bearings (14-2).
4, the device of a kind of controlling welding stress deformation depending on welding friction extrusion according to claim 3, it is characterized in that between a bearing (14-1) and No. two bearings (14-2), also being provided with No. three bearings (14-3), No. three bearings (14-3) are arranged between a slide (9-1) and No. two slides (9-2), on the guide pillar (8) between No. three bearings (14-3) and No. two slides (9-2), be provided with slide block (16), on No. three bearings (14-3), be provided with pressurization bolt (17).
5, according to the device of claim 1,2 or 4 described a kind of controlling welding stress deformation depending on welding friction extrusion, it is characterized in that described drive unit (10) acts on the end face of motor (5), described drive unit (10) is a cylinder.
6, according to the device of claim 1,2 or 4 described a kind of controlling welding stress deformation depending on welding friction extrusion, it is characterized in that supporting seat (1) by lifting screw (2) with the concrete structure that lifter plate (3) is connected is: described lifter plate (3) lower end is provided with central stepped (3-1), thrust bearing (19) is housed in the central stepped (3-1), the lower end of described lifting screw (2) is provided with the shaft shoulder, and the shaft shoulder is arranged on the lower end of thrust bearing (19); Described supporting seat (1) is provided with nut (1-1), and described lifting screw (2) is connected with nut (1-1).
7, the device of a kind of controlling welding stress deformation depending on welding friction extrusion according to claim 6, it is characterized in that on lifter plate (3), also being provided with two shoulder holes (3-2), the lower end of guide pillar (20) is fixed by shoulder hole (3-2), and described supporting seat (1) is provided with the hole of passing through for guide pillar (20).
8, according to the device of claim 1,2 or 4 described a kind of controlling welding stress deformation depending on welding friction extrusion, it is characterized in that on fixed platform (4), being provided with three connectors (18), two sides that are arranged side by side in fixed platform wherein, another connector is arranged on the centre position of opposite side, lower shoe (7) on described two preceding friction lever assembling devices (24) is connected with two connectors (18) that are arranged side by side by axle (27) respectively, and the lower shoe (7) on the described back friction lever assembling device (25) is connected with another connector.
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| CNB2006101508524A CN100413635C (en) | 2006-09-29 | 2006-09-29 | Apparatus for controlling welding stress deformation depending on welding friction extrusion |
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| CNB2006101508524A CN100413635C (en) | 2006-09-29 | 2006-09-29 | Apparatus for controlling welding stress deformation depending on welding friction extrusion |
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| CN101138817B (en) * | 2007-10-12 | 2010-04-21 | 哈尔滨工业大学 | Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| CN101786212A (en) * | 2010-03-24 | 2010-07-28 | 中国电子科技集团公司第二研究所 | Mechanical compaction welding set for processing laminated ceramic chips |
| CN101554693B (en) * | 2009-05-15 | 2011-05-04 | 哈尔滨工业大学 | Device for controlling welding stress deformation by welding with point-to-point extrusion |
| CN102728972A (en) * | 2012-06-06 | 2012-10-17 | 辽宁工程技术大学 | Control device for residual stress and strain along with welding of titanium alloy |
| CN103817452A (en) * | 2014-03-18 | 2014-05-28 | 哈尔滨工业大学 | Multi-layer and multi-pass welding-with-trailing-hammering method |
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| JPS5956988A (en) * | 1982-09-28 | 1984-04-02 | Setsuya Fujiwaka | Method and device for decreasing welding strain in welded annular pipe by plural torches |
| CN87100959B (en) * | 1987-02-28 | 1988-10-05 | 航空工业部六二五研究所 | Welding method and apparatus for thin-plate structural parts with low-stress and deformationless |
| CN1029669C (en) * | 1993-02-25 | 1995-09-06 | 北京航空工艺研究所 | Low stress non-deflecting welding process of dynamic control sheet member and its apparatus |
| JPH07236994A (en) * | 1994-02-28 | 1995-09-12 | Toshiba Corp | Welding strain preventing method and device therefor |
| JP3070735B2 (en) * | 1997-07-23 | 2000-07-31 | 株式会社日立製作所 | Friction stir welding method |
| CN1369336A (en) * | 2001-02-15 | 2002-09-18 | 株式会社日立制作所 | Friction stirring connecting method of structural body, structural body and extruded bar section |
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| JP2004114064A (en) * | 2002-09-24 | 2004-04-15 | Toshiba Corp | Method and device for controlling welding distortion in welded structure |
| CN1240512C (en) * | 2003-08-26 | 2006-02-08 | 哈尔滨工业大学 | Device for controlling deformation caused by welding stress by shock pressing |
| CN1739902A (en) * | 2005-09-28 | 2006-03-01 | 中国航空工业第一集团公司北京航空制造工程研究所 | Medium cooling, stirring and rubbing welding method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138817B (en) * | 2007-10-12 | 2010-04-21 | 哈尔滨工业大学 | Device for controlling welding stress deformation along with soldering impact, revolving and extrusion pressing |
| CN101554693B (en) * | 2009-05-15 | 2011-05-04 | 哈尔滨工业大学 | Device for controlling welding stress deformation by welding with point-to-point extrusion |
| CN101786212A (en) * | 2010-03-24 | 2010-07-28 | 中国电子科技集团公司第二研究所 | Mechanical compaction welding set for processing laminated ceramic chips |
| CN101786212B (en) * | 2010-03-24 | 2012-03-07 | 中国电子科技集团公司第二研究所 | Mechanical compaction welding set for processing laminated ceramic chips |
| CN102728972A (en) * | 2012-06-06 | 2012-10-17 | 辽宁工程技术大学 | Control device for residual stress and strain along with welding of titanium alloy |
| CN103817452A (en) * | 2014-03-18 | 2014-05-28 | 哈尔滨工业大学 | Multi-layer and multi-pass welding-with-trailing-hammering method |
| CN103817452B (en) * | 2014-03-18 | 2015-10-28 | 哈尔滨工业大学 | A kind of trailing peening method of multi-pass welding |
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