CN108237336A - A kind of method and its welding structure for being used to strengthen pipe fitting welding - Google Patents
A kind of method and its welding structure for being used to strengthen pipe fitting welding Download PDFInfo
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- CN108237336A CN108237336A CN201810310848.2A CN201810310848A CN108237336A CN 108237336 A CN108237336 A CN 108237336A CN 201810310848 A CN201810310848 A CN 201810310848A CN 108237336 A CN108237336 A CN 108237336A
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- 238000003466 welding Methods 0.000 title claims abstract description 152
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003032 molecular docking Methods 0.000 claims abstract description 34
- 238000003698 laser cutting Methods 0.000 claims abstract description 32
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000005728 strengthening Methods 0.000 claims abstract description 14
- 238000012797 qualification Methods 0.000 abstract description 8
- 210000002105 tongue Anatomy 0.000 description 63
- 238000010586 diagram Methods 0.000 description 11
- 238000005520 cutting process Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
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Abstract
The present invention provides a kind of method for being used to strengthen pipe fitting welding, includes the following steps：The first step sets buckle structure, and do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting in the connection position of the first pipe fitting and the connection position of the second pipe fitting, realizes the matching docking of two pipe fittings；First pipe fitting and the second pipe fitting are snapped connection by buckle structure, realize that two pipe fittings junction fits closely, so that two pipe fittings are positioned before welding；Buckle structure is to be formed by way of laser cutting in connection position；Second step by welding welds the junction of the first pipe fitting and the second pipe fitting.The present invention also provides one kind for strengthening pipe fitting welding structure.The present invention can effectively improve the compactness and welding positioning accuracy between pipe fitting, so as to improve the qualification rate of the precision welded between pipe fitting and pipe fitting welding finished product.The present invention can enhance pipe fitting welded structure intensity, so as to improve validity and the safety after welding between pipe fitting.
Description
Technical field
The present invention relates to industrial welding technical field, more specifically to a kind of method for being used to strengthen pipe fitting welding
And its welding structure.
Background technology
Metal tube is widely used in the every aspect of production and living, for conveying the various media such as liquid, gas, solid.
And in metal tube connection mode, most safe, most reliable connection method, which is undoubtedly, to be welded to connect.Existing pipe fitting welding side
Method is in the following manner mostly：
1st, be first spot welded in the junction of the first pipe fitting and the second pipe fitting, realize the first pipe fitting and the second pipe fitting just
Step connection；
2nd, the first pipe fitting of spot welding and the second pipe fitting are pressed from both sides using the welding fixture of customization or welding fixture tooling
Hold positioning；
3rd, the junction of the first pipe fitting and the second pipe fitting after positioning is welded entirely by robot or manipulator,
Realize the close welding of the first pipe fitting and the second pipe fitting.
Welding manner between metal tube has several：Dock welding manner, pipe end and pipe end between pipe end and pipe end
Between spigot-and-socket welding manner, the welding manner between pipe end and tube wall and the welding manner between tube wall and tube wall.
In spigot-and-socket welding manner between pipe end and pipe end between dock welding manner and pipe end and pipe end, the first pipe fitting and second
The connecting portion shape of pipe fitting is all equal consistent, thus before welding pipe end and pipe end to dock compactness preferable, it is such
The welding precision and qualification rate that mode is obtained using above-mentioned welding method are also relatively high.And the weldering between pipe end and tube wall
It connects in the welding manner between mode and tube wall and tube wall, it can be low and be welded into there are welding precision using above-mentioned welding manner
The defects of product qualification rate is low：
1st, the shape difference of pipe end and tube wall is big, has a radian particularly with tube wall for pipe, thus tube wall with
Compactness between pipe end is poor.And the compactness between tube wall and tube wall is also than relatively low.
2nd, in the welding process, since pipe fitting expands with heat and contract with cold so that pipe fitting easily rolling or rotation, leads to pipe end and pipe
Opposite displacement easily occurs between wall, compactness can be largely effected in this way, leads to welding precision difference and high rejection rate.
Invention content
It is an object of the invention to overcome shortcoming and deficiency of the prior art, provide a kind of for strengthening pipe fitting welding
Method and its welding structure, the welding method and welding structure can effectively improve the compactness and welding positioning accurate between pipe fitting
Degree, so as to improve the qualification rate of the precision welded between pipe fitting and pipe fitting welding finished product.Meanwhile the welding method and welding structure
Pipe fitting welded structure intensity can be enhanced, so as to improve validity and the safety after welding between pipe fitting.
In order to achieve the above object, the technical scheme is that：One kind is used to strengthen pipe fitting welding
Method, it is characterised in that：Include the following steps：
The first step sets buckle structure, and in the first pipe fitting in the connection position of the first pipe fitting and the connection position of the second pipe fitting
Connection position and/or the connection position of the second pipe fitting do shape processing, realize the matching docking of two pipe fittings；First pipe fitting and the second pipe
Part is snapped connection by buckle structure, realizes that two pipe fittings junction fits closely, so that two pipe fittings carry out before welding
Positioning；The buckle structure is to be formed by way of laser cutting in connection position；
Second step by welding welds the junction of the first pipe fitting and the second pipe fitting.
Traditional pipe fitting welding method is the positioning that a postwelding is needed to carry out pipe fitting by welding fixture or welding tooling, then
Carry out the welding between pipe fitting.Since the compactness between pipe fitting is poor, and pipe fitting expands with heat and contract with cold so that pipe fitting easily rolls
Or rotation, therefore, this will to the pressing force of welding fixture or welding tooling and positioning element in the installation position of pipe fitting and
The requirements such as shape are very high, and just two pipe fittings can be positioned.And this mode welding precision by external force positioning is low
And poor welding quality.
In said program, the present invention is buckled for strengthening the method for pipe fitting welding by buckle structure, Er Qielian
It connects position and does shape processing, it can be achieved that two pipe fittings junction fits closely so that two pipe fittings are positioned before welding.The present invention
Before welding with regard to carrying out the positioning of two pipe fittings, the compactness between pipe fitting is not only greatly improved in this way, but also can substantially reduce pair
The requirement of pressing force and positioning element location and shape in welding fixture or welding tooling.Therefore, this is not to pass through external force
Positioning, but by way of realizing positioning doing matching docking structure in two pipe fittings junction, welding precision and weldering can be improved
It is connected into the qualification rate of product.Meanwhile the welding method can also enhance pipe fitting welded structure intensity by buckle structure, so as to improve
Validity and safety after being welded between pipe fitting.
In addition, the buckle structure of the present invention is formed by being cut by laser, efficient, high quality special laser can be used
Cutting equipment is cut, and the buckle structure that this mode is formed can improve accuracy and the precision of cutting, and buckle structure is formed
Precision raising can further improve two pipe fittings junction do matching butt junction location accuracy and precision.
The buckle structure is one of following manner：
(1) buckle structure realizes the buckle structure of buckle for inserting mode；
The connection position of first pipe fitting is pipe end, and the connection position of the second pipe fitting is tube wall；The buckle structure is in pipe
Wall sets more than one jack and more than one tongue is set at pipe end edge, and tongue realizes first with jack grafting
Pipe fitting is connect with the second pipe fitting buckle；
The jack is formed by way of laser cutting in tube wall；The tongue is by way of laser cutting in pipe end
It is formed；
The jack and tongue are oppositely arranged；The quantity of the jack and the quantity of tongue are equal；
(2) buckle structure realizes the buckle structure of buckle for manner；
The connection position of first pipe fitting is tube wall, and the connection position of the second pipe fitting is tube wall；The buckle structure is difference
The groove one opened up in the first pipe fitting tube wall and the groove two opened up in the second pipe fitting tube wall；The groove one and groove two
Mutually fasten the buckle for realizing the first pipe fitting and the second pipe fitting；
The groove one is formed by way of laser cutting in the tube wall of the first pipe fitting；The groove two-way is crossed laser and is cut
The mode cut is formed in the tube wall of the second pipe fitting.
In welding method of the present invention, one of both the above mode can be used in buckle structure, can be directed to two pipe fittings different parts
Welding selected.
In mode (one), the tongue stretches out to be formed in the length direction of pipeline edge along the first pipe fitting；
The jack is opened up along the inclination of the second pipe fitting thickness direction；
Top and the second pipe of tongue and tongue after jack grafting are realized in the height of the tongue and the deep equality of jack
The inside pipe wall of part is concordant；
Second step, it is described by welding to the junction of the first pipe fitting and the second pipe fitting carry out welding show finger：Institute
Junction is stated as tongue top position concordant with the second pipe fitting inside pipe wall, carries out welding realization the to concordant position by welding
The welding of one pipe fitting and the second pipe fitting.
In the present invention, jack is opened up along the inclination of the second pipe fitting thickness direction, after which may be such that tongue is buckled with jack,
Incline structure can be buckled to tongue, so that the pipe fitting with tongue is not easily to fall off and shifts, further improve two pipe fittings positioning
Stability.Meanwhile the top of tongue is concordant with the inside pipe wall of the second pipe fitting, the concordant position can as the welding position of two pipe fittings,
The design, which is not only buckled, reinforcement structure and provides welding position, but also will not occupy after welding space in the pipe of the second pipe fitting, does not also have
There is the original structure for changing the second pipe fitting so that the welding finished product is equally applicable to the related of the transmission media such as gas and water after welding
Industry.
First pipe fitting and the second pipe fitting are pipe part；The tongue is the tongue with radian, and jack is matched with tongue
Buckle；
It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting in the first step, realize two
The matching docking of pipe fitting refers to：The cut surface with radian is formed by being cut by laser in the non-tongue position of the first pipe end,
The cut surface matches with the tube wall of the second pipe fitting to be docked.
In mode (two), first pipe fitting and the second pipe fitting are square tube part；
In the first step, shape processing is done in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realizes two
The matching docking of pipe fitting refers to：The groove one of first pipe fitting is identical and equal sized with two shape of groove of the second pipe fitting, recessed
Slot one and groove two match docking.
In mode (two), the first pipe fitting and the second pipe fitting fasten to realize positioning by groove one and groove two, due to
Groove one is identical and equal sized with the shape of groove two, therefore, the compactness of two pipe fittings when the two can improve welding after fastening.
The depth of the groove one is the half of the first pipe fitting caliber；The depth of the groove two is the second pipe fitting caliber
Half.
One kind is for strengthening pipe fitting welding structure, for being positioned before the first pipe fitting and the second pipe fitting welding；Its feature
It is：Including the snap part for being used to the first pipe fitting and the second pipe fitting being buckled；The snap part is arranged on the first pipe
The connection position of the connection position of part and the second pipe fitting；After being buckled by snap part, the connection position of first pipe fitting and the second pipe
The connection position matching docking of part；The snap part is to be formed by way of laser cutting in connection position；
The connection position of first pipe fitting is docked with the matching of the connection position of the second pipe fitting to be referred to：In the connection position of the first pipe fitting
And/or second the connection position of pipe fitting do shape processing, realize the matching docking of two pipe fittings.
The snap part is one of following manner：
(1) snap part realizes the snap part of buckle for inserting mode；
The connection position of first pipe fitting is pipe end, and the connection position of the second pipe fitting is tube wall；The snap part is included in
Tube wall sets more than one jack and more than one tongue is set at pipe end edge, and tongue and jack grafting realize the
One pipe fitting is connect with the second pipe fitting buckle；
The jack is formed by way of laser cutting in tube wall；The tongue is by way of laser cutting in pipe end
It is formed；
The jack and tongue are oppositely arranged；The quantity of the jack and the quantity of tongue are equal；
(2) snap part realizes the snap part of buckle for manner；
The connection position of first pipe fitting is tube wall, and the connection position of the second pipe fitting is tube wall；The snap part includes dividing
The groove one not opened up in the first pipe fitting tube wall and the groove two opened up in the second pipe fitting tube wall；The groove one and groove
Two mutually fasten the buckle for realizing the first pipe fitting and the second pipe fitting；The groove one is by way of laser cutting in the first pipe fitting
Tube wall formed；The mode that the groove two-way crosses laser cutting is formed in the tube wall of the second pipe fitting.
In mode (one), the tongue stretches out to be formed in the length direction of pipeline edge along the first pipe fitting；It is described to insert
Hole is opened up along the inclination of the second pipe fitting thickness direction；
Top and the second pipe of tongue and tongue after jack grafting are realized in the height of the tongue and the deep equality of jack
The inside pipe wall of part is concordant, using the welding position as the first pipe fitting and the second pipe fitting welding；
First pipe fitting and the second pipe fitting are pipe part；The tongue is the tongue with radian, and jack is matched with tongue
Buckle；
It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realize of two pipe fittings
Refer to docking：In the non-tongue position of the first pipe end the cut surface with radian, the cutting are formed by being cut by laser
Face matches with the tube wall of the second pipe fitting docks.
In mode (two), first pipe fitting and the second pipe fitting are square tube part；
It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realize of two pipe fittings
Refer to docking：The groove one of first pipe fitting is identical and equal sized with two shape of groove of the second pipe fitting, groove one and recessed
Slot two matches docking；
The depth of the groove one is the half of the first pipe fitting caliber；The depth of the groove two is the second pipe fitting caliber
Half.
Compared with prior art, the invention has the advantages that and advantageous effect：
1st, the present invention is before welding with regard to carrying out determining for two pipe fittings for strengthening the method for pipe fitting welding and its welding structure
Position, not only greatly improves the compactness between pipe fitting, but also can substantially reduce to being compressed in welding fixture or welding tooling in this way
The requirement of power and positioning element location and shape.
2nd, the present invention can improve welding precision and welding finished product for strengthening the method for pipe fitting welding and its welding structure
Qualification rate.
3rd, the present invention can enhance pipe fitting welded structure intensity for strengthening the method for pipe fitting welding and its welding structure, from
And improve the validity after welding between pipe fitting and safety.
4th, buckle structure of the invention is formed by being cut by laser, and efficient, high quality special laser can be used and cut
It cuts equipment to be cut, the buckle structure that this mode is formed can improve accuracy and the precision of cutting, what buckle structure was formed
Precision raising can further improve accuracy and the precision that matching butt junction location is done in two pipe fittings junction.
Description of the drawings
Fig. 1 is schematic diagram after the first pipe fitting and the second pipe fitting welding in embodiment one；
Fig. 2 is the second pipe fitting schematic diagram in embodiment one；
Fig. 3 is the first pipe fitting schematic diagram in embodiment one；
Fig. 4 be in embodiment one jack in the side schematic view of the second pipe fitting arm；
Fig. 5 is the second pipe fitting schematic diagram in embodiment two；
Fig. 6 is the first pipe fitting schematic diagram in embodiment two；
Fig. 7 is schematic diagram after the first pipe fitting and the second pipe fitting welding in embodiment three；
Fig. 8 is the second pipe fitting schematic diagram in embodiment three；
Fig. 9 is the first pipe fitting schematic diagram in embodiment three；
Figure 10 is schematic diagram after the first pipe fitting and the second pipe fitting welding in example IV；
Figure 11 is the second pipe fitting schematic diagram in example IV；
Figure 12 is the first pipe fitting schematic diagram in example IV；
Figure 13 is front schematic view after the first pipe fitting and the second pipe fitting welding in example IV；
Wherein, 1 it is the first pipe fitting, 2 be the second pipe fitting, 3 be jack, 4 be tongue, 5 be cut surface, 6 is that groove one, 7 is
Groove two.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
As shown in Figures 1 to 4, the present invention is a kind of includes the following steps for strengthening the method for pipe fitting welding：
The first step sets buckle structure, and in the first pipe in the connection position of the first pipe fitting 1 and the connection position of the second pipe fitting 2
The connection position of part 1 does shape processing, realizes the matching docking of two pipe fittings；First pipe fitting 1 and the second pipe fitting 2 by buckle structure into
Row snaps connection, and realizes that two pipe fittings junction fits closely, so that two pipe fittings are positioned before welding；Buckle structure is logical
The mode for crossing laser cutting is formed in connection position；
Second step by welding welds the junction of the first pipe fitting 1 and the second pipe fitting 2.
Specifically, the buckle structure of the present embodiment realizes the buckle structure of buckle for inserting mode；
The connection position of first pipe fitting 1 is pipe end, and the connection position of the second pipe fitting 2 is tube wall, and buckle structure is sets in tube wall
The first pipe fitting 1 and the are realized in two jacks 3 put and two tongues 4 set at pipe end edge, tongue 4 and 3 grafting of jack
Two pipe fittings 2 snap connection, and jack 3 and tongue 4 are oppositely arranged.The jack 3 is formed by way of laser cutting in tube wall, tongue
4 are formed by way of laser cutting in pipe end.
In the present embodiment, tongue 4 stretches out to be formed in the length direction of pipeline edge along the first pipe fitting 1, jack 3 along first
The inclination of 1 thickness direction of pipe fitting opens up.After the design may be such that tongue 4 is buckled with jack 3, incline structure can be buckled to tongue 4, so as to
So that the 1 not easily to fall off and displacement of the first pipe fitting with tongue 4, further improves the stability that two pipe fittings position.
And the deep equality of the height of tongue 4 and jack 3, realize the top of tongue 4 and tongue 4 after 3 grafting of jack and the
The inside pipe wall of two pipe fittings 2 is concordant.In above-mentioned second step, by welding to the junction of the first pipe fitting 1 and the second pipe fitting 2
It carries out welding and shows finger：Junction is 4 top of tongue position concordant with 2 inside pipe wall of the second pipe fitting, by welding to concordant position
Carry out the welding that the first pipe fitting 1 and the second pipe fitting 2 are realized in welding.The top of the present embodiment tongue 4 and the inside pipe wall of the second pipe fitting 2
Concordantly, which can be as the welding position of two pipe fittings, which, which is not only buckled, reinforcement structure and provides welding position, but also will not
Occupy welding after the second pipe fitting 2 pipe in space, also without change the second pipe fitting 2 original structure so that the welding after welding
Finished product is equally applicable to the relevant industries of the transmission media such as gas and water.
First pipe fitting 1 and the second pipe fitting 2 of the present embodiment are pipe part, and therefore, tongue 4 is the tongue with radian,
Jack 3 matches buckle with tongue.In the above-mentioned first step, shape processing is done in the connection position of the first pipe fitting 1, realizes of two pipe fittings
Refer to docking：In the non-tongue position of 1 pipe end of the first pipe fitting the cut surface 5 with radian, the cutting are formed by being cut by laser
Face 5 matches with the tube wall of the second pipe fitting 2 docks.
The present embodiment is for being determined before the first pipe fitting 1 and the welding of the second pipe fitting 2 for strengthening pipe fitting welding structure
Position；Including the snap part for being used to the first pipe fitting 1 and the second pipe fitting 2 being buckled, snap part is arranged on the first pipe fitting 1
The connection position of connection position and the second pipe fitting 2；After being buckled by snap part, the connection position of the first pipe fitting 1 and the company of the second pipe fitting 2
Connect position matching docking, in particular to：Shape processing is done in the connection position of the first pipe fitting 1, realizes the matching docking of two pipe fittings.Buckle
Component is to be formed by way of laser cutting in connection position.
The connection position of first pipe fitting 1 is pipe end, and the connection position of the second pipe fitting 2 is tube wall, which is inserting mode
It realizes the snap part of buckle, is included in tube wall and the jack 3 of two is set and the tongue 4 of two is set at pipe end edge,
Tongue 4 realizes that the first pipe fitting 1 is snapped connection with the second pipe fitting 2 with 3 grafting of jack, and jack 3 and tongue 4 are oppositely arranged；The jack 3
It is formed by way of laser cutting in tube wall, tongue 4 is formed by way of laser cutting in pipe end.
The tongue 4 of the present embodiment stretches out to be formed in the length direction of pipeline edge along the first pipe fitting 1, jack 3 along second
The inclination of 2 thickness direction of pipe fitting opens up；And the deep equality of the height of tongue 4 and jack 3, realize tongue 4 with it is convex after 3 grafting of jack
The top of slot 4 is concordant with the inside pipe wall of the second pipe fitting 2, using the welding position as the first pipe fitting 1 and the welding of the second pipe fitting 2.First
1 and second pipe fitting 2 of pipe fitting is pipe part, convex, and 4 be the tongue with radian, and jack 3 matches buckle with tongue；
The above-mentioned connection position in the first pipe fitting 1 does shape processing, realizes that the matching docking of two pipe fittings refers to：In the first pipe fitting
The non-tongue position of 1 pipe end forms the cut surface 5 with radian, the tube wall phase of the cut surface 5 and the second pipe fitting 2 by being cut by laser
Matching docking.
The tongue 4 of the present embodiment may be selected interference with jack 3 and connect, and can further enhance the first pipe after the two buckle in this way
The compactness of 1 and second pipe fitting 2 of part fitting positioning.
The present invention is to be buckled by buckle structure, and connection position for strengthening the method for pipe fitting welding and its structure
Shape processing is done, it can be achieved that two pipe fittings junction fits closely so that two pipe fittings are positioned before welding.The present invention is welding
With regard to the positioning of progress two pipe fittings before connecing, the compactness between pipe fitting is not only greatly improved in this way, but also can be substantially reduced to welding
The requirement of pressing force and positioning element location and shape in fixture or welding tooling.Therefore, this positioned by external force,
But by way of realizing positioning doing matching docking structure in two pipe fittings junction, welding precision and welding finished product can be improved
Qualification rate.Meanwhile the welding method can also enhance pipe fitting welded structure intensity by buckle structure, so as to improve pipe fitting it
Between weld after validity and safety.
Embodiment two
The present embodiment the difference is that only with embodiment one：As it can be seen in figures 5 and 6, buckle structure is what is set in tube wall
One jack 3 and a tongue 4 in the setting of pipe end edge, tongue 4 realize the first pipe fitting 1 and the second pipe with 3 grafting of jack
Part 2 snaps connection, and jack 3 and tongue 4 are oppositely arranged.
The other structures and method of the present embodiment are consistent with embodiment.
Embodiment three
The present embodiment the difference is that only with embodiment two：As shown in Figs. 7-9, the cut surface 5 of the first pipe fitting 1 has
Certain angle of inclination so that the first pipe fitting 1 and the second pipe fitting 2 have angle of inclination after snapping connection.
The other structures and method of the present embodiment are consistent with embodiment.
Example IV
As shown in Figure 10 to 13, the present invention is a kind of to be included the following steps for strengthening the method for pipe fitting welding：
The first step sets buckle structure, and in the first pipe in the connection position of the first pipe fitting 1 and the connection position of the second pipe fitting 2
The connection position of part 1 and the connection position of the second pipe fitting 2 do shape processing, realize the matching docking of two pipe fittings；First pipe fitting 1 and second
Pipe fitting 2 is snapped connection by buckle structure, realizes that two pipe fittings junctions fits closely so that two pipe fittings before welding into
Row positioning；Buckle structure is to be formed by way of laser cutting in connection position；
Second step by welding welds the junction of the first pipe fitting 1 and the second pipe fitting 2.
Specifically, the buckle structure of the present embodiment realizes the buckle structure of buckle for manner；
The connection position of first pipe fitting 1 is tube wall, and the connection position of the second pipe fitting 2 is tube wall；And buckle structure is respectively the
The groove 1 that one pipe fitting, 1 tube wall opens up and the groove 27 opened up in 2 tube wall of the second pipe fitting, 27 phase of groove 1 and groove
Mutually fasten the buckle for realizing the first pipe fitting 1 and the second pipe fitting 2.Groove 1 is by way of laser cutting in the pipe of the first pipe fitting 1
Wall is formed, and groove 27 is formed by way of laser cutting in the tube wall of the second pipe fitting 2.
First pipe fitting 1 and the second pipe fitting 2 of the present embodiment are square tube part；In the first step, in the connection position of the first pipe fitting 1
Shape processing is done with the connection position of the second pipe fitting 2, realizes that the matching docking of two pipe fittings refers to：The groove 1 of first pipe fitting 1 and
27 shape of groove of two pipe fittings 2 is identical and equal sized, and groove 1 and groove 27 match docking.
In order to improve the fitting matching degree between the first pipe fitting 1 and the second pipe fitting 2, the depth of groove 1 is the first pipe fitting 1
The half of caliber, the depth of groove 27 are the half of 2 caliber of the second pipe fitting.
The present embodiment is for being determined before the first pipe fitting 1 and the welding of the second pipe fitting 2 for strengthening pipe fitting welding structure
Position；Including the snap part for being used to the first pipe fitting 1 and the second pipe fitting 2 being buckled, snap part is arranged on the first pipe fitting 1
The connection position of connection position and the second pipe fitting 2；After being buckled by snap part, the connection position of the first pipe fitting 1 and the company of the second pipe fitting 2
Connect position matching docking, in particular to：Shape processing is done in the connection position of the first pipe fitting 1 and the connection position of the second pipe fitting 2, realizes two
The matching docking of pipe fitting.Snap part is to be formed by way of laser cutting in connection position.
The connection position of first pipe fitting 1 is tube wall, and the connection position of the second pipe fitting 2 is tube wall；And snap part is manner
Realize the snap part of buckle, snap part includes the groove 1 opened up respectively in 1 tube wall of the first pipe fitting and in the second pipe
The groove 27 that 2 tube wall of part opens up, groove 1 and groove 27 mutually fasten the buckle for realizing the first pipe fitting 1 and the second pipe fitting 2.
First pipe fitting 1 and the second pipe fitting 2 of the present embodiment are square tube part.It is managed in the connection position of the first pipe fitting 1 and second
The connection position of part 2 does shape processing, realizes that the matching docking of two pipe fittings refers to：One 6 and second pipe fitting 2 of groove of first pipe fitting 1
27 shape of groove it is identical and equal sized, groove 1 and groove 27 match docking.The depth of groove 1 is first
The half of 1 caliber of pipe fitting, the depth of groove 27 are the half of 2 caliber of the second pipe fitting.Groove 1 is by way of laser cutting
It is formed in the tube wall of the first pipe fitting 1, groove 27 is formed by way of laser cutting in the tube wall of the second pipe fitting 2.
The present invention is to be buckled by buckle structure, and connection position for strengthening the method for pipe fitting welding and its structure
Shape processing is done, it can be achieved that two pipe fittings junction fits closely so that two pipe fittings are positioned before welding.The present invention is welding
With regard to the positioning of progress two pipe fittings before connecing, the compactness between pipe fitting is not only greatly improved in this way, but also can be substantially reduced to welding
The requirement of pressing force and positioning element location and shape in fixture or welding tooling.Therefore, this positioned by external force,
But by way of realizing positioning doing matching docking structure in two pipe fittings junction, welding precision and welding finished product can be improved
Qualification rate.Meanwhile the welding method can also enhance pipe fitting welded structure intensity by buckle structure, so as to improve pipe fitting it
Between weld after validity and safety.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
- A kind of 1. method for being used to strengthen pipe fitting welding, it is characterised in that：Include the following steps：The first step sets buckle structure, and in the company of the first pipe fitting in the connection position of the first pipe fitting and the connection position of the second pipe fitting The connection position for connecing position and/or the second pipe fitting does shape processing, realizes the matching docking of two pipe fittings；First pipe fitting and the second pipe fitting lead to It crosses buckle structure to be snapped connection, realizes that two pipe fittings junction fits closely, so that two pipe fittings are positioned before welding； The buckle structure is to be formed by way of laser cutting in connection position；Second step by welding welds the junction of the first pipe fitting and the second pipe fitting.
- 2. the method according to claim 1 for being used to strengthen pipe fitting welding, it is characterised in that：The buckle structure is as follows One of mode：(1) buckle structure realizes the buckle structure of buckle for inserting mode；The connection position of first pipe fitting is pipe end, and the connection position of the second pipe fitting is tube wall；The buckle structure is sets in tube wall It puts more than one jack and more than one tongue is set at pipe end edge, tongue realizes the first pipe fitting with jack grafting It is connect with the second pipe fitting buckle；The jack is formed by way of laser cutting in tube wall；The tongue is by way of laser cutting in pipe end shape Into；The jack and tongue are oppositely arranged；The quantity of the jack and the quantity of tongue are equal；(2) buckle structure realizes the buckle structure of buckle for manner；The connection position of first pipe fitting is tube wall, and the connection position of the second pipe fitting is tube wall；The buckle structure is respectively the The groove one that one pipe fitting tube wall opens up and the groove two opened up in the second pipe fitting tube wall；The groove one and groove two are mutual Fasten the buckle for realizing the first pipe fitting and the second pipe fitting；The groove one is formed by way of laser cutting in the tube wall of the first pipe fitting；The groove two-way crosses laser cutting Mode is formed in the tube wall of the second pipe fitting.
- 3. the method according to claim 2 for being used to strengthen pipe fitting welding, it is characterised in that：It is described in mode (one) Tongue stretches out to be formed in the length direction of pipeline edge along the first pipe fitting；The jack is opened up along the inclination of the second pipe fitting thickness direction；Top and the second pipe fitting of tongue and tongue after jack grafting are realized in the height of the tongue and the deep equality of jack Inside pipe wall is concordant；Second step, it is described by welding to the junction of the first pipe fitting and the second pipe fitting carry out welding show finger：The company Place is met as tongue top position concordant with the second pipe fitting inside pipe wall, welding is carried out to concordant position by welding and realizes the first pipe The welding of part and the second pipe fitting.
- 4. the method according to claim 3 for being used to strengthen pipe fitting welding, it is characterised in that：First pipe fitting and the second pipe fitting It is pipe part；The tongue is the tongue with radian, and jack matches buckle with tongue；It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting in the first step, realize two pipe fittings Matching docking refer to：The cut surface with radian is formed by being cut by laser in the non-tongue position of the first pipe end, it is described Cut surface matches with the tube wall of the second pipe fitting to be docked.
- 5. the method according to claim 2 for being used to strengthen pipe fitting welding, it is characterised in that：It is described in mode (two) First pipe fitting and the second pipe fitting are square tube part；In the first step, shape processing is done in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realizes two pipe fittings Matching docking refer to：The groove one of first pipe fitting is identical and equal sized with two shape of groove of the second pipe fitting, groove one Match docking with groove two.
- 6. the method according to claim 5 for being used to strengthen pipe fitting welding, it is characterised in that：The depth of the groove one is The half of first pipe fitting caliber；The depth of the groove two is the half of the second pipe fitting caliber.
- 7. one kind is for strengthening pipe fitting welding structure, for being positioned before the first pipe fitting and the second pipe fitting welding；Its feature exists In：Including the snap part for being used to the first pipe fitting and the second pipe fitting being buckled；The snap part is arranged on the first pipe fitting Connection position and the second pipe fitting connection position；After being buckled by snap part, connection position and the second pipe fitting of first pipe fitting Connection position matching docking；The snap part is to be formed by way of laser cutting in connection position；The connection position of first pipe fitting is docked with the matching of the connection position of the second pipe fitting to be referred to：The first pipe fitting connection position and/ Or second the connection position of pipe fitting do shape processing, realize the matching docking of two pipe fittings.
- 8. according to claim 7 be used to strengthen pipe fitting welding structure, it is characterised in that：The snap part is such as lower section One of formula：(1) snap part realizes the snap part of buckle for inserting mode；The connection position of first pipe fitting is pipe end, and the connection position of the second pipe fitting is tube wall；The snap part is included in tube wall More than one jack is set and more than one tongue is set at pipe end edge, tongue realizes the first pipe with jack grafting Part is connect with the second pipe fitting buckle；The jack is formed by way of laser cutting in tube wall；The tongue is by way of laser cutting in pipe end shape Into；The jack and tongue are oppositely arranged；The quantity of the jack and the quantity of tongue are equal；(2) snap part realizes the snap part of buckle for manner；The connection position of first pipe fitting is tube wall, and the connection position of the second pipe fitting is tube wall；The snap part includes existing respectively The groove one that first pipe fitting tube wall opens up and the groove two opened up in the second pipe fitting tube wall；The groove one and groove two-phase Mutually fasten the buckle for realizing the first pipe fitting and the second pipe fitting；The groove one is formed by way of laser cutting in the tube wall of the first pipe fitting；The groove two-way crosses laser cutting Mode is formed in the tube wall of the second pipe fitting.
- 9. according to claim 8 be used to strengthen pipe fitting welding structure, it is characterised in that：It is described convex in mode (one) Slot stretches out to be formed in the length direction of pipeline edge along the first pipe fitting；The jack is opened up along the inclination of the second pipe fitting thickness direction；Top and the second pipe fitting of tongue and tongue after jack grafting are realized in the height of the tongue and the deep equality of jack Inside pipe wall is concordant, using the welding position as the first pipe fitting and the second pipe fitting welding；First pipe fitting and the second pipe fitting are pipe part；The tongue is the tongue with radian, and jack matches buckle with tongue；It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realize the matching pair of two pipe fittings It connects and refers to：The non-tongue position of the first pipe end by be cut by laser formed with radian cut surface, the cut surface with The tube wall of second pipe fitting matches docking.
- 10. according to claim 8 be used to strengthen pipe fitting welding structure, it is characterised in that：In mode (two), described One pipe fitting and the second pipe fitting are square tube part；It is described to do shape processing in the connection position of the first pipe fitting and/or the connection position of the second pipe fitting, realize the matching pair of two pipe fittings It connects and refers to：The groove one of first pipe fitting is identical and equal sized with two shape of groove of the second pipe fitting, groove one and groove two Match docking；The depth of the groove one is the half of the first pipe fitting caliber；The depth of the groove two is the one of the second pipe fitting caliber Half.
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| CN201810310848.2A CN108237336A (en) | 2018-04-09 | 2018-04-09 | A kind of method and its welding structure for being used to strengthen pipe fitting welding |
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| CN201810310848.2A CN108237336A (en) | 2018-04-09 | 2018-04-09 | A kind of method and its welding structure for being used to strengthen pipe fitting welding |
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