CN105562984B - Linear electric motors tablet weld jig and welding method - Google Patents
Linear electric motors tablet weld jig and welding method Download PDFInfo
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- CN105562984B CN105562984B CN201410530121.7A CN201410530121A CN105562984B CN 105562984 B CN105562984 B CN 105562984B CN 201410530121 A CN201410530121 A CN 201410530121A CN 105562984 B CN105562984 B CN 105562984B
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Abstract
The invention discloses a kind of linear electric motors tablet weld jig and welding method, fixture includes：Framework, is arranged at the workbench of framework upper, is arranged at the augmentor of base of frame, is arranged at the limited block at workbench two ends, and jacking block.The movable end of augmentor provides support for jacking block, and workbench is provided with the through hole passed through for jacking block.The assembly clamping of square steel component and channel-section steel component is between limited block and jacking block, and jacking block provides support for the bottom of square steel component, and two ends of channel-section steel component are fixed limited block.The working face of jacking block senses thermal deformation is presented after plate weld Machining of Curved Surface into corresponding curved surface according to linear electric motors.Before welding, augmentor applies active force by jacking block, all parts of square steel component and channel-section steel component assembly is produced reverse predeformation, is cancelled out each other with the thermal deformation that is produced after welding.The present invention can effectively solve the problem that linear electric motors sensing panel products post welding distortion is serious, it is necessary to carry out the technical problem of shaping correction.
Description
Technical field
The present invention relates to welding technology field, more particularly, to a kind of applied to the reverse of stacked linear electric motors tablet
Predeformation weld jig and welding method.
Background technology
Welding is to melt more than two pieces or two pieces of the same race or dissimilar metal by heating, combines and spreads through atom or molecule
Link the technical process being integrated.Because the input of heat in welding process, the contraction of weld seam and its near zone material can
Thermal deformation is produced, thermal deformation often makes welding structure exceed technical requirement on design.When postwelding structure is produced more than technical requirements
It should take measures to be corrected during deformation or be prevented.And current, the corrective measure commonly used in industrial production mainly has machinery to rectify
Execute and flame correction method.Both modes are all by trying to cause a new deformation in postwelding, being produced using forcing press
Mechanically deform produces the deformation that thermal deformation counteracting has been produced to workpiece local heating.But both approaches will be to every
Complete the product after welding to be corrected, not only time and effort consuming, and inefficiency.
As a kind of basic type device of core, stacked linear electric motors tablet is widely used in urban track traffic work
In Cheng Jianshe.As shown in Figure 1, the iron core working face of stacked linear electric motors tablet is by 18 20mm × 30mm × 2500mm
Square steel tiling, and with 8 short channel-section steel components at right angles arrangement be welded, required after welding iron core flatness error control
In 1 millimeter.But after welding, because welding the influence of temperature distortion, channel-section steel, which easily becomes, to overarch, and causes tablet working face
Flatness it is seriously overproof, it is impossible to meet the technical requirements of product, as shown in Figure 2.
Thermal deformation after the prevention of welding deformation can also be welded by design specialized fixture by mechanical grip suppression, but because
Limited by weldment structure, this method is only used on a small quantity in simple small size weldment at present, and special fixture will be with weldering
Fitting is together cooled down.Postwelding corrective measure needs to implement correction, low production efficiency labor intensity to every product after iron core welding
Height, as the different parts of workpiece deform deflection difference, corrects, detects at any time, workload is big, some products need anti-one by one
Multiple correction and detection.Meanwhile, machinery correction there is also sometimes needs repair welding after weld cracking phenomenon, correction, manufacturing cost is high,
Be not suitable for tablet to produce in enormous quantities.In addition, welding deformation precautionary measures require that special fixture is together cooled down with product and could risen
To thermal deformation is suppressed, it is necessary to manufacture substantial amounts of special fixture, the fixture manufacturing expense of great number, same manufacturing cost are put into
It is high.
The content of the invention
In view of this, it is an object of the invention to provide a kind of linear electric motors tablet weld jig and welding method, energy
Enough linear electric motors sensing panel products post welding distortions that effectively solves are seriously, it is necessary to carry out the technical problem of shaping correction.
In order to realize foregoing invention purpose, the present invention specifically provides a kind of technology of linear electric motors tablet weld jig
Implementation, a kind of linear electric motors tablet weld jig, including：Framework, is arranged at the workbench of the framework upper, sets
In the augmentor of the base of frame, the limited block at the workbench two ends, and jacking block are arranged at.The augmentor
Movable end provides support for the bottom of the jacking block, and the workbench is provided with the through hole passed through for the jacking block bottom.Square steel
The assembly clamping of component and channel-section steel component is between the limited block and jacking block, and the jacking block is the bottom of the square steel component
Support is provided, two ends of the channel-section steel component are fixed the limited block.The working face of the jacking block is according to described
The Machining of Curved Surface that thermal deformation is presented after linear electric motors sensing plate weld is into corresponding curved surface.Before welding, the augmentor leads to
Cross the jacking block and apply active force, all parts of the square steel component and channel-section steel component assembly is produced reverse predeformation,
Cancelled out each other with the thermal deformation that is produced after welding.
It is preferred that, the center section region processing of the jacking block working face is into plane, and remainder is according to the straight-line electric
The Machining of Curved Surface that thermal deformation is presented after machine sensing plate weld is into corresponding curved surface.
It is preferred that, the augmentor further uses gas-liquid linked pressurizing cylinder or bolt jack.
It is preferred that, the square steel component includes some square steel, each one of center of the jacking block working face or so
The region processing of the square steel width is into plane.
It is preferred that, the weld jig includes eight pairs of limited blocks, for fixing eight channel-section steel components.The weld jig is also
Including four sets of augmentors.
The present invention still further there is provided a kind of technology for the method that linear electric motors sensing plate weld is realized using above-mentioned fixture
Implementation, linear electric motors sensing plate welding method, comprises the following steps：
Before linear electric motors sensing plate weld, the group of the square steel component and channel-section steel component is made using the fixture
Fit each part produces reverse predeformation, and the square steel component and channel-section steel component are welded under the clamp position of the fixture
Connect, the reverse predeformation is offseted with the thermal deformation that produces after welding, complete the linear electric motors tablet after welding from described
Dismantled in fixture.
It is preferred that, this method further comprises the steps：
S100：The assembly of the square steel component and channel-section steel component by tack welding is lifted, from the fixture
End enter fixture working position；
S101：By the limited block of the fixture and the channel-section steel component alignment；
S102：Start the augmentor, the movable end of the augmentor is up, promote the jacking block to hold out against the side
The assembly of steel component and channel-section steel component, makes the assembly produce reverse predeformation, when the assembly reaches the change of needs
During shape amount, close the air valve of the augmentor and keep pressure；
S103：Weld seam between the square steel component and channel-section steel component is subjected to, linear electric motors sensing is formed
Plate；
S104：The unloading valve that the augmentor is opened after the welding of the linear electric motors tablet is completed is arranged
Gas, the movable end of the augmentor, and the jacking block reset, and unclamp the linear electric motors tablet；
S105：The end horizontal of linear electric motors tablet from the fixture is moved and exited using lifting, is carried out
The production procedure of next linear electric motors tablet.
It is preferred that, in the step S101, further by eight pairs of limited blocks of the fixture and eight channel-section steel components point
Do not align.
It is preferred that, in the step S102, the augmentor further uses gas-liquid linked pressurizing cylinder, starts four
Cover gas-liquid linked pressurizing cylinder.The piston rod of the gas-liquid linked pressurizing cylinder is up, promotes the jacking block to hold out against the square steel
The assembly of component and channel-section steel component, makes the assembly produce reverse predeformation.
It is preferred that, in the step S103, further to 16 weld seams between the square steel component and channel-section steel component
It is subjected to.
By implementing linear electric motors tablet weld jig and the welding method that the invention described above is provided, with following technology
Effect：
The present invention uses special linear electric motors tablet weld jig by designing, and coordinates gas-liquid pressure-boosting cylinder efficient,
The all parts of product is produced suitable reversely predeformation before Product jointing, mutually supported with the thermal deformation that is produced after welding
Disappear, so as to solve after Product jointing because the influence that heat is inputted is deformed and underproof technical problem, compared to mesh
Preceding conventional postwelding corrective measure or welding deformation precautionary measures are more efficient, and fixture input cost is lower.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other embodiments are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of prior art linear electric motors tablet；
Fig. 2 is that linear electric motors sense the structural representation that thermal deformation is produced after plate weld in the prior art；
Fig. 3 is the operation principle schematic diagram of linear electric motors tablet weld jig of the present invention；
Fig. 4 is the structural representation front view of linear electric motors tablet weld jig of the present invention；
Fig. 5 is the structural representation top view of linear electric motors tablet weld jig of the present invention；
Fig. 6 is the cross-sectional view of jacking block in linear electric motors tablet weld jig of the present invention；
In figure：1- square steel components, 2- channel-section steel components, 3- limited blocks, 4- jacking blocks, 5- workbench, 6- augmentors, 7- frames
Frame.
Embodiment
For the sake of quoting and understanding, by the technical term hereinafter used, write a Chinese character in simplified form or abridge and be described below：
Stacked linear electric motors tablet：Motor is divided to two kinds of electric rotating machine and linear electric motors, Qian Zhe electricity according to forms of motion
When machine works, rotary part is referred to as rotor, moving component when the latter works（Equivalent to rotary motor rotor）Move along a straight line, directly
The tablet of line motor after rotor is powered, is mated formation in the tablet generation sense of rotor correspondence position equivalent to the stator of motor
Magnetic field is answered, the region that thrust drive rotor is produced to rotor tablet along mating formation moves linearly；At present, have in the world including me
Tens city rail traffic lines in multiple cities such as state Beijing, Guangzhou use linear electric machine traction mode；
Welding and welding deformation：Welding is to melt more than two pieces or two pieces of the same race or dissimilar metal by heating, through original
Son or molecule combine diffusion and link the technical process that is integrated because in welding process heat input, weld seam and its neighbouring area
Domain Material shrinkage, which can produce thermal deformation thermal deformation, often makes product postwelding size unqualified can not be used beyond design requirement；
Weld jig：It is, to install processing object, to be allowed to be in correct position, to ensure in Product jointing processing
The quality of part and product, by scientifically and rationally designing weld jig, can not only ensure that each part of product is just during welding
True position, additionally it is possible to make part produce expected reversal deformation and offset welding thermal deformation, improve production efficiency and product quality.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only
Only it is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
As shown in accompanying drawing 3 to 6, the specific implementation of linear electric motors tablet weld jig of the present invention and welding method is given
Example, the invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in accompanying drawing 3,4 and 5, a kind of specific embodiment of linear electric motors tablet weld jig, including：Framework 7, if
The workbench 5 on the top of framework 7 is placed in, the augmentor 6 of the bottom of framework 7 is arranged at, the limited block 3 on workbench 5 is arranged at, with
And jacking block 4.The movable end of augmentor 6 provides support for the bottom of jacking block 4, and workbench 5 is provided with what is passed through for the bottom of jacking block 4
Through hole.The assembly of square steel component 1 and channel-section steel component 2（As shown in dotted portion in accompanying drawing 3）Clamping is in limited block 3 and jacking block 4
Between.The limited block 3 for being arranged on the two ends of workbench 5 uses inverted l-shaped structure, and the projection at two tops of limited block 3 is to channel-section steel component 2
The upper surface of two ends is fixed.Jacking block 4 provides fixed, support for the bottom of square steel component 1.The working face root of jacking block 4
Thermal deformation is presented after plate weld Machining of Curved Surface is sensed into corresponding curved surface according to linear electric motors.Before welding, augmentor 6 passes through
Jacking block 4 applies active force, all parts of square steel component 1 and the assembly of channel-section steel component 2 is produced reverse predeformation, after welding
The thermal deformation of generation is cancelled out each other.Wherein, square steel component 1 includes 18 20mm × 30mm × 2500mm square steel.Present invention tool
The technical scheme of body embodiment description is passed through using special fixture by reverse predeformation, and under Afterburning condition before welding
Welding is carried out to clamping workpiece, the technical problem that linear electric motors tablet post welding distortion seriously needs shaping to correct is solved.
As shown in Figure 6, to ensure that fixture holds out against the reverse predeformation that rear product is produced, produced after disclosure satisfy that counteracting welding
Raw thermal deformation is again without excessive remaining predeformation, and the center section region processing of the working face of jacking block 4 is into plane, remainder
The Machining of Curved Surface presented according to thermal deformation after the sensing plate weld is into corresponding curved surface.It is a kind of preferably specific as the present invention
Embodiment, square steel component 1 includes some square steel, the region of each square steel width in center of the working face of jacking block 4 or so
It is processed into plane.As a kind of typical specific embodiment of the present invention, the center section 40mm of jacking block 4 × 2500mm region is flat
Face, remaining position curved surface is processed into according to engineer testing.
Weld jig further comprises eight pairs of limited blocks 3, for fixing eight channel-section steel components 2.Weld jig also includes four
Cover augmentor 6.Augmentor 6 further uses gas-liquid linked pressurizing cylinder or bolt jack.In present invention specific implementation
Among example.Pressure needed for linear electric motors sensing each part predeformation of panel products is big, and general machinery is limited by space and can not expired
Sufficient demand, carries out reinforcing operation, it is ensured that cathetus motor tablet part of the present invention by using gas-liquid linked pressurizing cylinder
Produce the huge operating pressure required for predeformation.Meanwhile, gas-liquid linked pressurizing cylinder can also meet site requirements well,
And easily operate.Certainly, augmentor 6 can also use other similar reinforcing modes.
A kind of specific embodiment for the method that linear electric motors sensing plate weld is realized using above-mentioned fixture, in linear electric motors sense
Answer before plate weld, each part of assembly for making square steel component 1 and channel-section steel component 2 using fixture produces reverse predeformation, in folder
Square steel component 1 and channel-section steel component 2 are welded under the clamp position of tool, reverse predeformation and the thermal deformation phase produced after welding
Offset, complete the linear electric motors tablet after welding and dismantled from fixture.
As a kind of typical specific embodiment of the present invention, the above method further comprises the steps：
S100：The assembly of square steel component 1 and channel-section steel component 2 by tack welding is lifted using driving, from folder
The end of tool enters the working position of fixture；
S101：The limited block 3 of fixture is alignd with channel-section steel component 2；
S102：Start augmentor 6, the movable end of augmentor 6 is up, promote jacking block 4 to hold out against square steel component 1 and channel-section steel
The assembly of component 2（As shown in dotted portion in attached Figure 4 and 5）, assembly is produced reverse predeformation, needed when assembly reaches
During the deflection wanted, close the air valve of augmentor 6 and keep pressure；
S103：Weld seam between square steel component 1 and channel-section steel component 2 is subjected to, linear electric motors tablet is formed；
S104：The unloading valve that augmentor 6 is opened after the welding of linear electric motors tablet is completed is exhausted, reinforcing dress
Put 6 movable end, and jacking block 4 resets, and unclamps linear electric motors tablet；
S105：Linear electric motors tablet is moved and exited from the end horizontal of fixture using lifting, is carried out next straight
The production procedure of line motor tablet.
In step S101, eight pairs of limited blocks 3 of fixture are alignd respectively with eight channel-section steel components 2.
In step s 102, augmentor 6 further uses gas-liquid linked pressurizing cylinder, starts four sets of gas-liquid linked superchargings
Oil cylinder, the piston rod of gas-liquid linked pressurizing cylinder is up, promotes jacking block 4 to hold out against the assembly of square steel component 1 and channel-section steel component 2,
Assembly is set to produce reverse predeformation.
In step s 103, further 16 weld seams between square steel component 1 and channel-section steel component 2 are subjected to,
As shown in black matrix thick lines part in accompanying drawing 5.
By implementing linear electric motors tablet weld jig and the welding method that the specific embodiment of the invention is described, Neng Gouda
To following technique effect：
（1）The linear electric motors tablet weld jig and welding method of specific embodiment of the invention description use augmentor
Work, makes all parts of product produce reverse predeformation before Product jointing, can be mutual with the thermal deformation that is produced after welding
Offset, so solve after linear electric motors tablet Product jointing because the influence that heat is inputted is deformed and it is underproof existing
As compared to current conventional postwelding corrective measure or welding deformation precautionary measures, more efficient, fixture input cost is lower；
（2）The linear electric motors tablet weld jig and welding method of specific embodiment of the invention description are reverse by welding
The use of predeformation fixture, ensure that linear electric motors sensing panel products meet technical requirements, it is not necessary to rectified after conventional welding
Just, product can be unloaded from fixture after the completion of improving production efficiency and the quality of product, welding, be transferred to next product life
Production, it is ensured that product meets technical requirement on design, improves production efficiency, reduces cost；
（3）The linear electric motors tablet weld jig and welding method of specific embodiment of the invention description are compared to normal at present
The postwelding corrective measure or welding deformation precautionary measures of rule are more efficient, and fixture input cost is lower, is particularly suitable for use in straight-line electric
The situation that machine tablet is produced in enormous quantities.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention.Though
So the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence and technical scheme of the present invention, all using in the methods and techniques of the disclosure above
Appearance makes many possible variations and modification to technical solution of the present invention, or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to made for any of the above embodiments any simple
Modification, equivalent substitution, equivalence changes and modification, still fall within technical solution of the present invention protection in the range of.
Claims (10)
1. a kind of linear electric motors tablet weld jig, it is characterised in that including：Framework（7）, it is arranged at the framework（7）On
The workbench in portion（5）, it is arranged at the framework（7）The augmentor of bottom（6）, it is arranged at the workbench（5）The limit at two ends
Position block（3）, and jacking block（4）；The augmentor（6）Movable end be the jacking block（4）Bottom provide support, the work
Make platform（5）It is provided with for the jacking block（4）The through hole that bottom is passed through；Square steel component（1）With channel-section steel component（2）Assembly clamping
In the limited block（3）With jacking block（4）Between, the jacking block（4）For the square steel component（1）Bottom provide support, it is described
Limited block（3）To the channel-section steel component（2）Two ends be fixed, the jacking block（4）Working face according to the straight line
The Machining of Curved Surface that thermal deformation is presented after motor sensing plate weld is into corresponding curved surface；Before welding, the augmentor（6）Pass through
The jacking block（4）Apply active force, make the square steel component（1）With channel-section steel component（2）The all parts of assembly produce reverse
The thermal deformation produced after predeformation, with welding is cancelled out each other；The square steel component（1）With channel-section steel component（2）Assembly from institute
The end for stating fixture enters the working position of fixture, the limited block（3）With the channel-section steel component（2）Alignment；The augmentor
（6）Movable end it is up, promote the jacking block（4）Hold out against the square steel component（1）With channel-section steel component（2）Assembly, make institute
State assembly and produce reverse predeformation, when the assembly reaches the deflection of needs, close the augmentor（6）Gas
Valve simultaneously keeps pressure；To the square steel component（1）With channel-section steel component（2）Between weld seam be subjected to, formed straight-line electric
Machine tablet, the augmentor is opened after the welding of the linear electric motors tablet is completed（6）Unloading valve be exhausted；
The augmentor（6）Movable end, and the jacking block（4）Reset, unclamp the linear electric motors tablet, the straight-line electric
The end horizontal of machine tablet from the fixture is moved and exited.
2. linear electric motors tablet weld jig according to claim 1, it is characterised in that：The jacking block（4）Working face
Center section region processing into plane, remainder senses the curved surface that thermal deformation is presented after plate weld according to the linear electric motors
It is processed into corresponding curved surface.
3. linear electric motors tablet weld jig according to claim 1 or 2, it is characterised in that：The augmentor（6）
Using gas-liquid linked pressurizing cylinder or bolt jack.
4. linear electric motors tablet weld jig according to claim 3, it is characterised in that：The square steel component（1）Bag
Include some square steel, the jacking block（4）The region processing Cheng Ping of each one square steel width in center of working face or so
Face.
5. the linear electric motors tablet weld jig according to any claim in claim 1,2,4, it is characterised in that：
The weld jig includes eight pairs of limited blocks（3）, for fixing eight channel-section steel components（2）；The weld jig also includes four sets
Augmentor（6）.
6. the fixture in a kind of utilization claim 1 to 5 described in any claim realizes that linear electric motors sense the side of plate weld
Method, it is characterised in that：Before linear electric motors sensing plate weld, make the square steel component using the fixture（1）With groove
Steel component（2）Each part of assembly produce reverse predeformation, to the square steel component under the clamp position of the fixture（1）
With channel-section steel component（2）Welded, the reverse predeformation is offseted with the thermal deformation produced after welding, complete straight after welding
Line motor tablet is dismantled from the fixture.
7. linear electric motors according to claim 6 sense plate welding method, it is characterised in that comprise the following steps：
S100：By by the square steel component of tack welding（1）With channel-section steel component（2）Assembly lifted, from the folder
The end of tool enters the working position of fixture；
S101：By the limited block of the fixture（3）With the channel-section steel component（2）Alignment；
S102：Start the augmentor（6）, the augmentor（6）Movable end it is up, promote the jacking block（4）Hold out against
The square steel component（1）With channel-section steel component（2）Assembly, the assembly is produced reverse predeformation, when the assembly
When reaching the deflection of needs, the augmentor is closed（6）Air valve and keep pressure；
S103：To the square steel component（1）With channel-section steel component（2）Between weld seam be subjected to, formed linear electric motors sense
Answer plate；
S104：The augmentor is opened after the welding of the linear electric motors tablet is completed（6）Unloading valve be exhausted,
The augmentor（6）Movable end, and the jacking block（4）Reset, unclamp the linear electric motors tablet；
S105：The end horizontal of linear electric motors tablet from the fixture is moved and exited using lifting, is carried out next
The production procedure of the individual linear electric motors tablet.
8. linear electric motors according to claim 7 sense plate welding method, it is characterised in that：In the step S101,
By eight pairs of limited blocks of the fixture（3）With eight channel-section steel components（2）Align respectively.
9. linear electric motors according to claim 8 sense plate welding method, it is characterised in that：In the step S102,
The augmentor（6）Using gas-liquid linked pressurizing cylinder, start four sets of gas-liquid linked pressurizing cylinders, the gas-liquid linked supercharging
The piston rod of oil cylinder is up, promotes the jacking block（4）Hold out against the square steel component（1）With channel-section steel component（2）Assembly, make institute
State assembly and produce reverse predeformation.
10. linear electric motors according to claim 9 sense plate welding method, it is characterised in that：In the step S103,
To the square steel component（1）With channel-section steel component（2）Between 16 weld seams be subjected to.
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| CN108406148A (en) * | 2017-02-10 | 2018-08-17 | 唐山开元机器人系统有限公司 | It is a kind of to adapt to robot Intelligent welding and the automatic Anti-deformation device for conveying, being clamped |
| CN109623232A (en) * | 2017-08-01 | 2019-04-16 | 汪思芳 | A kind of automobile that welding quality is good processing welder |
| CN111347207A (en) * | 2020-04-02 | 2020-06-30 | 一汽奔腾轿车有限公司 | Welding fixture and welding method for compensating thermal deformation of patch board |
| CN113634975B (en) * | 2021-10-15 | 2022-01-11 | 徐州华恒机器人系统有限公司 | Tower crane main chord member predeformation welding frock |
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| CN102699492A (en) * | 2012-06-21 | 2012-10-03 | 中铁宝桥（扬州）有限公司 | Gate-type multi-electrode welding device and U rib plate welding method employing same |
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