CN206047310U - For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value - Google Patents
For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value Download PDFInfo
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- CN206047310U CN206047310U CN201621070292.7U CN201621070292U CN206047310U CN 206047310 U CN206047310 U CN 206047310U CN 201621070292 U CN201621070292 U CN 201621070292U CN 206047310 U CN206047310 U CN 206047310U
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Abstract
For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value to belong to the auxiliary welding device field that trolley coach carbon steel character cut in bas-relief template docks full penetration Welding, which includes that the horizontal jacking mechanism of inner chamber, inner chamber longitudinal direction jacking mechanism and two full penetration welding line lower ends back cover molten bath groove ensure pad, the horizontal jacking mechanism of the inner chamber includes two pieces of intracavity sidewall gripper shoes and two width adjusting mechanisms, and inner chamber longitudinal direction jacking mechanism includes two cavity heights location-plates and two height regulating mechanisms.Frock of the present utility model ensure that the weld seam preset clearance d needed for the welding of full penetration formula is constant all the time, be conducive to controlling welding deformation and improve welding precision, and can also be prevented effectively from because weld contraction deforms and it is caused be partially welded, overlap, the phenomenon such as non-penetration, and then enable the full penetration formula weld job of the backstop beam weldment to become a kind of accurate, coherent and without deformation, the high quality welds new technology without adjusting.
Description
Technical field
This utility model belongs to the auxiliary welding device that trolley coach carbon steel character cut in bas-relief template docks full penetration Welding
Field, and in particular to a kind of for ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value.
Background technology
Full penetration formula welding procedure and back cover welding procedure are more ripe conventional soldering techniques methods, full penetration formula
Weld seam is generally reserved welding procedure the gap width d of Nominal Width, so that the solder for making thawing is flowed down with weld seam and is infiltrated into
The back side of weld seam, so as to form full penetration weld.For slab weldment of the thickness more than 15mm, if full penetration formula Welder
When skill cannot realize the welding effect of complete penetration, then further back cover Welder can be adopted in the back of weld for failing penetration
Skill carries out repair welding, so as to realize full weld in the upper and lower faces of weld seam.
As shown in figure 1, the backstop beam of trolley coach is by the quadrangular of two 1 docking group of carbon steel character cut in bas-relief template welderings
Tubular beams, the groove of its two carbon steel character cut in bas-relief templates 4 surround the through-lumen to form a backstop beam jointly.Such as Fig. 2 to Fig. 5
Shown, character cut in bas-relief template 4 includes integrally formed upper horizontal edge 4-1, lower horizontal edge 4-2 and side wall 4-3, upper horizontal edge 4-1 and lower horizontal edge 4-2
Edge of opening be equipped with groove, two character cut in bas-relief templates 4 each other welding when, upper horizontal edge 4-1 and lower horizontal edge 4-2 both which
Edge of opening is respectively relative two-by-two, and forms the trapezoidal splicing welding joint 4-4 in the upper end being mutually symmetrical and the trapezoidal splicing in lower end respectively
Weld seam 4-5.According to the Design Requirement Drawing of the backstop beam, the front and back of splicing welding joint 4-4 trapezoidal for upper end should be distinguished
Welded using full penetration formula welding procedure and back cover welding procedure, when two character cut in bas-relief templates 4 are organized pair each other, need to be made thereon
The short base of trapezoidal splicing welding joint 4-4 is held to be respectively formed the weld seam preset clearance that width is d.The weldering of the trapezoidal splicing welding joint 4-5 in lower end
The welding process requirement for meeting technological requirement splicing welding joint 4-4 trapezoidal with upper end is identical.
However, as carbon steel character cut in bas-relief template 4 belongs to the longer slab weldment of length, deformation quantity is shunk in the welding of its weld seam
Larger, this is often led in the full penetration formula weld job process of trapezoidal splicing welding joint, and the weld seam of front half section is not yet completed, and
The allowance weld spacing of its second half section has begun to gradually narrow, and in turn results in the weld seam preset clearance needed for the welding of full penetration formula
The continuous constrictions of d, or even occur because of d values being the feelings that cause zero the full penetration formula welding of trapezoidal splicing welding joint end section complete
Condition, and the weld seam of required preset clearance contraction change be also easy to cause in welding process to occur overlap, be partially welded, non-penetration etc.
Weld defect so that welding quality cannot ensure.
On the other hand, as the depth of inner cavity of backstop beam is larger, operator does not have enough working places to be pointed to which yet
Implement the welding of weld seam back cover in the lower surface of the trapezoidal splicing welding joint of deep inside.
Two kinds of above-mentioned factors cause the weld job of the trapezoidal splicing welding joint of backstop beam to be unable to reach designed by drawing
Welding standard, and using carrying out step by step full penetration and weld seam back welding near only at the both ends open of tubulose backstop beam
The local Simple welding method for connecing cannot also fully meet the process ruggedness requirement of backstop beam weldment.
Utility model content
In order to solve existing to weld the formed and quadrangular tubuloses with through-lumen by two character cut in bas-relief template splicing groups and stop
Gear beam, the given gap of trapezoidal splicing welding joint which must be reserved to implement the welding of full penetration formula can in welding process because
Weld thermal deformation and significantly narrow, the preset clearance for causing this required cannot keep its due given width originally, and should
The weld seam of contraction distortion be easily caused occur overlap, be partially welded, the weld defect such as non-penetration so that welding quality cannot ensure；With
And do not have enough working places to be pointed to the lower surface of the trapezoidal splicing welding joint of backstop beam inner chamber depths to solve operator
Implement the welding of weld seam back cover, the technology of the process ruggedness requirement that local Simple welding method cannot fully meet backstop beam weldment is asked
Topic, this utility model provide a kind of for ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value.
The technical scheme taken by this utility model solution technical problem is as follows：
For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value, which includes that inner chamber laterally holds out against
Mechanism, inner chamber longitudinal direction jacking mechanism and two full penetration welding line lower ends back cover molten bath groove ensure pad, and the inner chamber is laterally pushed up
Tight mechanism includes two pieces of intracavity sidewall gripper shoes and two width adjusting mechanisms, and the left and right two ends of each width adjusting mechanism are equal
The side wall of intracavity sidewall gripper shoe corresponding with a piece is vertical respectively connects；Inner chamber longitudinal direction jacking mechanism includes two inner chamber height
Degree location-plate and two height regulating mechanisms, the upper surface of cavity heights location-plate are provided with molten bath groove and ensure pad mounting groove, often
Respectively cavity heights location-plate corresponding with is vertical connects for the upper/lower terminal of one height regulating mechanism；It is described each
Full penetration welding line lower end back cover molten bath groove ensures that the molten bath groove that pad is embedded on a correspondence cavity heights location-plate is ensured
In pad mounting groove.
Above-mentioned full penetration welding line lower end back cover molten bath groove ensures that pad is long strip type ceramic gasket, the center of its upper surface
It is provided with the molten bath groove of circular arc；Full penetration welding line lower end back cover molten bath groove ensures that the outer contour shape of pad and molten bath groove are ensured
The shape of cross section of the mounting groove of pad mounting groove matches；The length of the molten bath groove of the circular arc is trapezoidal more than or equal to lower end
The length of splicing welding joint.
Above-mentioned width adjusting mechanism includes the first double threaded screw and two laterally hold out against nut, and two laterally hold out against nut point
It is not connected with the thread segment at the first double threaded screw two ends in the form of being threadedly coupled；The first double threaded screw two ends thread segment
Hand of spiral is opposite each other.
Above-mentioned height regulating mechanism includes the second double threaded screw and two longitudinal directions hold out against nut, and two longitudinal directions hold out against nut point
It is not connected with the thread segment at the second double threaded screw two ends in the form of being threadedly coupled；The second double threaded screw two ends thread segment
Hand of spiral is opposite each other.
The beneficial effects of the utility model are：The inner chamber longitudinal direction jacking mechanism of the welding auxiliary mould has adjustable for height
Cavity heights location-plate.Full penetration welding line lower end back cover molten bath groove ensures that pad is that the center of upper surface is provided with the molten of circular arc
The long strip type ceramic gasket of pond groove.The full penetration welding line lower end back cover molten bath groove ensures the embedded cavity heights location-plate of pad
Molten bath groove is ensured in pad mounting groove, and is used to accept molten metal liquation in welding process.When the trapezoidal spelling to backstop beam
When welding seam carries out the welding of full penetration formula, respectively to the trapezoidal splicing welding joint in its upper end and the molten bath groove of the circular arc accepted below
Enough welding filling materials are inside embedded in, hereafter can start to carry out the weld seam full penetration formula weld job, welding filling
Material melts and is simultaneously filled with the molten of the trapezoidal splicing welding joint in upper end and the circular arc accepted below under the high temperature action of electric arc
Pond groove, the installations with molten metal in the molten bath groove of circular arc after the cooling period directly to the bottom of the trapezoidal splicing welding joint in upper end from
Closure weld seam is formed so, so as to eliminate the necessity that back welding operation is separately carried out to splicing welding joint reverse side, and perfect solution
As the depth of inner cavity of backstop beam is larger, operator do not have enough working places to be pointed to the trapezoidal spelling of its deep inside yet
Implement the old technical problem of weld seam back cover welding in the lower surface of welding seam.
The horizontal jacking mechanism of inner chamber of the welding auxiliary mould has broad-adjustable two width adjusting mechanisms, both which
It is used to laterally hold out against the two side wall of inner chamber of backstop beam weldment.Two-way in the horizontal jacking mechanism of inner chamber under effect, only holds out against
The trapezoidal splicing welding joint of the trapezoidal splicing welding joint in upper end and lower end of gear beam weldment cannot in whole welding and follow-up cooling procedure
Because welding deformation narrows spacing, ensure that the weld seam preset clearance d needed for the welding of full penetration formula is constant all the time, be conducive to
Control welding deformation and improve welding precision, and can also be prevented effectively from because weld contraction deforms and it is caused be partially welded, overlap, not
The phenomenons such as penetration, so enable the backstop beam weldment full penetration formula weld job become it is a kind of accurate, coherent and without deformation,
High quality welds new technology without adjusting.
In addition this is used to ensure that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value also to have structure letter
It is single practical, it is easy to operate, it is with low cost, it is easy to the advantages of popularizing.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the backstop beam of trolley coach；
Fig. 2 is the blast assembling schematic diagram of Fig. 1；
Fig. 3 is the dimensional structure diagram of character cut in bas-relief template；
Fig. 4 is the front view of Fig. 1；
Fig. 5 is the partial enlarged drawing of I parts in Fig. 4；
Fig. 6 is that this utility model keeps for the vertical of the welding auxiliary mould of fixed gap value for ensureing inner chamber full penetration weld
Body structural representation；
Fig. 7 is the dimensional structure diagram of the horizontal jacking mechanism of this utility model inner chamber；
Fig. 8 is the dimensional structure diagram of this utility model inner chamber longitudinal direction jacking mechanism；
Fig. 9 is the dimensional structure diagram that this utility model full penetration welding line lower end back cover molten bath groove ensures pad；
Figure 10 is that this utility model longitudinal direction jacking mechanism ensures the quick-fried of pad with full penetration welding line lower end back cover molten bath groove
Fried assembling schematic diagram；
Figure 11 is that this utility model is used to ensure the welding auxiliary mould that inner chamber full penetration weld keeps for fixed gap value
Application schematic diagram；
Figure 12 is the blast assembling schematic diagram of Figure 11；
Figure 13 is the front view of Figure 12；
Figure 14 is the partial enlarged drawing of II parts in Figure 13.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further details.
As shown in Fig. 6 to Figure 10, this utility model is used to ensure that inner chamber full penetration weld keeps for the welding of fixed gap value
Auxiliary mould includes horizontal jacking mechanism 1, the inner chamber longitudinal direction jacking mechanism 2 of inner chamber and two full penetration welding line lower ends back cover molten bath
Groove ensures pad 3, and the horizontal jacking mechanism of inner chamber 1 includes two pieces of intracavity sidewall gripper shoes 1-1 and two width adjusting mechanisms 1-2,
The side wall of the left and right two ends of each width adjusting mechanism 1-2 respectively intracavity sidewall gripper shoe 1-1 corresponding with a piece is vertical to be connected
Connect.
Inner chamber longitudinal direction jacking mechanism 2 includes two cavity heights location-plate 2-1 and two height regulating mechanism 2-2, inner chamber
The upper surface of altitude location plate 2-1 is provided with molten bath groove and ensures pad mounting groove 2-1-1, each height regulating mechanism 2-2 it is upper,
Respectively cavity heights location-plate 2-1 corresponding with is vertical at lower two ends connects.
Each full penetration welding line lower end back cover molten bath groove ensures that pad 3 is embedded in a correspondence cavity heights location-plate
Molten bath groove on 2-1 is ensured in pad mounting groove 2-1-1.
Full penetration welding line lower end back cover molten bath groove ensures that pad 3 is long strip type ceramic gasket, and the center of its upper surface sets
There is the molten bath groove 3-1 of circular arc.Full penetration welding line lower end back cover molten bath groove ensures that the outer contour shape of pad 3 and molten bath groove are protected
The shape of cross section of the mounting groove of barrier pad mounting groove 2-1-1 matches.Under the length of the molten bath groove 3-1 of circular arc is more than or equal to
Hold the length of trapezoidal splicing welding joint 4-5.
Width adjusting mechanism 1-2 includes the first double threaded screw 1-2-1 and two laterally hold out against nut 1-2-2, and two laterally
Hold out against nut 1-2-2 to be connected with the thread segment at the first double threaded screw 1-2-1 two ends in the form of being threadedly coupled respectively.First double end
The hand of spiral of screw rod 1-2-1 two ends thread segment is opposite each other.
Height regulating mechanism 2-2 includes the second double threaded screw 2-2-1 and two longitudinal directions hold out against nut 2-2-2, two longitudinal directions
Hold out against nut 2-2-2 to be connected with the thread segment at the second double threaded screw 2-2-1 two ends in the form of being threadedly coupled respectively.Second double end
The hand of spiral of screw rod 2-2-1 two ends thread segment is opposite each other.
As shown in Figure 11 to 14, concrete application this utility model is used to ensure that inner chamber full penetration weld keeps for fixed gap
During the welding auxiliary mould of value, first will be the groove of two character cut in bas-relief templates 1 parallel and staggered relatively so as to which the two surrounds institute's shape jointly
Into one without a group backstop beam inner chamber for weldering.Then, will be two width adjusting mechanisms 1-2 in inner chamber horizontal jacking mechanism 1 equal
Adjust to most short status, the outer section spacing of two pieces of intracavity sidewall gripper shoes 1-1 is made less than the transverse width of backstop beam inner chamber.Again
During inner chamber horizontal jacking mechanism 1 is inserted into without group backstop beam inner chamber of weldering, left and right two piece character cut in bas-relief template 1 is adjusted respectively,
And intracavity sidewall gripper shoe 1-1 corresponding with is closely connected respectively for the medial wall for making both which.Hereafter, two width are rotated respectively
The first double threaded screw 1-2-1 in adjustment mechanism 1-2, makes the first double threaded screw 1-2-1 while promoting corresponding horizontal to both sides
Nut 1-2-2 is held out against, and is observed respectively and is measured now without group trapezoidal splicing welding joint 4-4 in backstop beam upper end of weldering and lower end ladder
Shape splicing welding joint 4-5, reserves when the short base width of its upper and lower two weld seam respectively reaches the weld seam needed for full penetration weldering
During gap d value, stop the width adjustment to the horizontal jacking mechanism of inner chamber 1.Splicing welding joint 4-4 trapezoidal to upper end and lower end are terraced respectively
Shape splicing welding joint 4-5 carries out end and implements preliminary spot welding, you can completes to determine using the horizontal jacking mechanism 1 of inner chamber and treats group weldering
The operation of the weld seam preset clearance d of backstop beam.
On the premise of keeping horizontal 1 position of jacking mechanism of inner chamber constant, two full penetration welding line lower end back covers are melted
Pond groove ensures that pad 3 is respectively embedded into the molten bath groove of a correspondence cavity heights location-plate 2-1 and ensures in pad mounting groove 2-1-1,
Then, one of cavity heights location-plate 2-1 and its embedded full penetration welding line lower end back cover molten bath groove are ensured into pad 3
Together overturn so as to which the notch back-off of the molten bath groove 3-1 of circular arc downward, then, the cavity heights of the back-off is positioned
Plate 2-1 and its embedded full penetration welding line lower end back cover molten bath groove ensure that pad 3 is together inserted in backstop beam inner chamber, and make which
The full penetration welding line lower end back cover molten bath groove of back-off ensures pad 3 and the trapezoidal splicing welding joint 4-5 parallel alignments in lower end.
Then, two height regulating mechanism 2-2 in the jacking mechanism 2 of inner chamber longitudinal direction are adjusted to most short status, and point
Two height regulating mechanism 2-2 are not vertically placed on the upper surface of cavity heights location-plate 2-1 of aforementioned back-off, then will be another
The outer one cavity heights location-plate 2-1 and its embedded full penetration welding line lower end back cover molten bath groove without back-off ensures pad
3 lower sections for together inserting the trapezoidal splicing welding joint 4-4 in upper end, and make the full penetration welding line lower end back cover molten bath groove ensure pad 3
With the trapezoidal splicing welding joint 4-4 parallel alignments in upper end.Finally, make respectively two height regulating mechanism 2-2 upper end withstand on without
On the lower surface of the cavity heights location-plate 2-1 of back-off, and two the second double threaded screw 2-2-1 are rotated respectively, make the second double end
The upper and lower both directions of screw rod 2-2-1 promote corresponding two longitudinal directions to hold out against nut 2-2-2 simultaneously, until upper and lower two full penetrations
Welding line lower end back cover molten bath groove ensures the splicing welding joint 4-4 trapezoidal with its each self-corresponding upper end of pad 3 and the trapezoidal spelling in lower end
The end face of welding seam 4-5 realizes that difference is closely connected, you can complete the installation exercise using inner chamber longitudinal direction jacking mechanism 2.
When full penetration formula is carried out to the trapezoidal splicing welding joint 4-4 in upper end of backstop beam welding, respectively to the trapezoidal splicing weldering in upper end
Enough welding filling materials are embedded in the molten bath groove 3-1 of seam 4-4 and the circular arc accepted below, it is right hereafter can to start
The weld seam carries out full penetration formula weld job, and welding filling material melts under the high temperature action of electric arc and is simultaneously filled with upper end ladder
The molten bath groove 3-1 of shape splicing welding joint 4-4 and the circular arc accepted below, the filling gold in the molten bath groove 3-1 of circular arc
Directly the bottom self-assembling formation of splicing welding joint 4-4 trapezoidal to upper end blocks weld seam to category liquation after the cooling period, so as to eliminate separately
The necessity of back welding operation is carried out to splicing welding joint reverse side, and perfection is solved as the depth of inner cavity of backstop beam is larger, grasped
Author does not have the lower surface that enough working places are pointed to the trapezoidal splicing welding joint of its deep inside to implement weld seam back welding yet
The old technical problem for connecing.Meanwhile, two-way in the horizontal jacking mechanism of inner chamber 1 is held out against under effect, the trapezoidal splicing welding joint 4-4 in upper end
Splicing welding joint 4-5 trapezoidal with lower end cannot narrow spacing because of welding deformation in whole welding and follow-up cooling procedure, from
And ensure that the weld seam preset clearance d needed for the welding of full penetration formula is constant all the time, be conducive to controlling welding deformation and improve welding
Precision, and can also be prevented effectively from because weld contraction deforms and it is caused be partially welded, overlap, the phenomenon such as non-penetration, and then make to stop
The full penetration formula weld job of gear beam weldment can become a kind of accurate, coherent and new without deformation, the high quality welds without adjusting
Technique.
After the completion for the treatment of the full penetration formula welding of the trapezoidal splicing welding joint 4-4 in upper end, this utility model is used to ensure that inner chamber is complete
Melt-through weld keeps for the welding auxiliary mould of fixed gap value to be overturn in company with backstop beam weldment together, you can after the same method
Full penetration formula welding is carried out to the upset trapezoidal splicing welding joint 4-5 in lower end upward.
Claims (4)
1. it is used for ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value, it is characterised in that：The frock bag
Include the horizontal jacking mechanism of inner chamber (1), inner chamber longitudinal direction jacking mechanism (2) and two full penetration welding line lower ends back cover molten bath groove to ensure
Pad (3), the horizontal jacking mechanism (1) of the inner chamber is including two pieces of intracavity sidewall gripper shoes (1-1) and two width adjusting mechanisms
(1-2), the side of the left and right two ends of each width adjusting mechanism (1-2) respectively intracavity sidewall gripper shoe (1-1) corresponding with a piece
Wall vertically connects；Inner chamber longitudinal direction jacking mechanism (2) is including two cavity heights location-plates (2-1) and two height adjustment machines
Structure (2-2), the upper surface of cavity heights location-plate (2-1) are provided with molten bath groove and ensure pad mounting groove (2-1-1), each height
The respectively vertical connection of cavity heights location-plate (2-1) corresponding with of the upper/lower terminal of adjustment mechanism (2-2)；It is described each
Individual full penetration welding line lower end back cover molten bath groove ensures that pad (3) is embedded on correspondence cavity heights location-plate (2-1)
Molten bath groove is ensured in pad mounting groove (2-1-1).
2. it is as claimed in claim 1 to be used to ensure that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value, its
It is characterised by：Full penetration welding line lower end back cover molten bath groove ensures that pad (3) is long strip type ceramic gasket, its upper surface
Center is provided with the molten bath groove (3-1) of circular arc；Full penetration welding line lower end back cover molten bath groove ensures the outer contour shape of pad (3)
Match with the shape of cross section of the mounting groove that molten bath groove ensures pad mounting groove (2-1-1)；Molten bath groove (the 3- of the circular arc
1) length of the length more than or equal to the trapezoidal splicing welding joint in lower end (1-5).
3. it is as claimed in claim 1 to be used to ensure that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value, its
It is characterised by：The width adjusting mechanism (1-2) laterally holds out against nut (1-2- including the first double threaded screw (1-2-1) and two
2), two laterally hold out against screw thread of the nut (1-2-2) respectively in the form of being threadedly coupled with the first double threaded screw (1-2-1) two ends
Section connection；The hand of spiral of the first double threaded screw (1-2-1) two ends thread segment is opposite each other.
4. it is as claimed in claim 1 to be used to ensure that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value, its
It is characterised by：The height regulating mechanism (2-2) holds out against nut (2-2- including the second double threaded screw (2-2-1) and two longitudinal directions
2), two longitudinal directions hold out against screw thread of the nut (2-2-2) respectively in the form of being threadedly coupled with the second double threaded screw (2-2-1) two ends
Section connection；The hand of spiral of the second double threaded screw (2-2-1) two ends thread segment is opposite each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070292.7U CN206047310U (en) | 2016-09-22 | 2016-09-22 | For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621070292.7U CN206047310U (en) | 2016-09-22 | 2016-09-22 | For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206047310U true CN206047310U (en) | 2017-03-29 |
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ID=58365935
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621070292.7U Expired - Fee Related CN206047310U (en) | 2016-09-22 | 2016-09-22 | For ensureing that inner chamber full penetration weld keeps for the welding auxiliary mould of fixed gap value |
Country Status (1)
| Country | Link |
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| CN (1) | CN206047310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262929A (en) * | 2017-07-28 | 2017-10-20 | 余小刚 | A kind of welding alignment device and the welding method based on the device |
| CN107322135A (en) * | 2017-05-12 | 2017-11-07 | 中信重工机械股份有限公司 | A kind of double J section steels of small opening and its welding method |
-
2016
- 2016-09-22 CN CN201621070292.7U patent/CN206047310U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322135A (en) * | 2017-05-12 | 2017-11-07 | 中信重工机械股份有限公司 | A kind of double J section steels of small opening and its welding method |
| CN107262929A (en) * | 2017-07-28 | 2017-10-20 | 余小刚 | A kind of welding alignment device and the welding method based on the device |
| CN107262929B (en) * | 2017-07-28 | 2019-02-15 | 余小刚 | A kind of welding alignment device and the welding method based on the device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170329 |