CN107414391A - Three-dimensional column workpiece welding procedure is equipped - Google Patents

Three-dimensional column workpiece welding procedure is equipped Download PDF

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Publication number
CN107414391A
CN107414391A CN201710771275.9A CN201710771275A CN107414391A CN 107414391 A CN107414391 A CN 107414391A CN 201710771275 A CN201710771275 A CN 201710771275A CN 107414391 A CN107414391 A CN 107414391A
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CN
China
Prior art keywords
positioning
component
workpiece
plate
equipment
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Application number
CN201710771275.9A
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Chinese (zh)
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CN107414391B (en
Inventor
李全柱
张硕
张秋红
闫喜林
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中车唐山机车车辆有限公司
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Priority to CN201710771275.9A priority Critical patent/CN107414391B/en
Publication of CN107414391A publication Critical patent/CN107414391A/en
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Publication of CN107414391B publication Critical patent/CN107414391B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs

Abstract

The present invention provides a kind of welding procedure equipment of three-dimensional column workpiece, including, frock matrix, end positioning component, fastening assembly, gusset positioning gear component and support component are provided with frock matrix, fastening assembly includes positioning component and the longitudinal compressed part being arranged on positioning component and laterally holds out against portion, positioning component includes base and two side walls being oppositely arranged on base, the detent for being positioned to workpiece is offered in two side walls, longitudinal compressed part and the laterally portion of holding out against are respectively used to carry out longitudinal direction compression to workpiece and laterally held out against;Gusset positioning gear component includes the first positioning seat, the positioning baffle being arranged on the first positioning seat, and positioning baffle is used to position gusset;Support component is between two adjacent fastening assemblies, for providing support to the end of two workpiece.The welding procedure equipment of three-dimensional column workpiece provided by the invention, it is possible to achieve be accurately positioned to three-dimensional column workpiece welding.

Description

Three-dimensional column workpiece welding procedure is equipped
Technical field
The present invention relates to welding tooling technical field, more particularly to a kind of three-dimensional column workpiece welding procedure to equip.
Background technology
Welding procedure equipment be welding structure production assembling and welding process in rise cooperation and booster action fixture, The general name of mechanical device and equipment.Welding of the three-dimensional column workpiece welding procedure equipment suitable for three-dimensional column workpiece.
Existing three-dimensional column workpiece welding procedure equipment is in welding, using the form of substep welding.I.e. each welding workpiece Assembling and spot welding successively, adjusting, re-segmenting welding, then adjusting.But substep welding sequence is cumbersome, during assembling parts, process portion It can not fully position, easily the problems such as generation welding deformation, cause yield rate low.
The content of the invention
The present invention provides a kind of three-dimensional column workpiece welding procedure equipment, and difficult ask is positioned to solve tradition substep welding Topic.
The welding procedure equipment of three-dimensional column workpiece provided by the invention, the three-dimensional column workpiece include bottom plate, are located at Gusset between the three-dimension curved surface riser of the bottom plate both sides, and relative two three-dimension curved surface risers;The welding procedure Equipment includes, frock matrix, be arranged on the frock matrix and the end positioning component positioned at the frock matrix both ends, with And it is arranged on multiple fastening assemblies, multiple gussets positioning gear component and multiple support groups between two end positioning components Part, the end positioning component, multiple fastening assemblies, multiple gusset positioning gear components and multiple support groups Part is detachably connected with frock matrix, wherein,
The fastening assembly includes positioning component and the longitudinal compressed part being arranged on the positioning component and laterally held out against Portion, the positioning component include base and two side walls being oppositely arranged on the base, opened up in described two side walls There is detent, the detent is used to position the three-dimensional column workpiece, and longitudinal compressed part is used for institute State the three-dimensional column workpiece in detent and carry out longitudinal compression, the transverse direction portion of holding out against is used for three in the detent Dimension columnar workpiece laterally hold out against;
The gusset positioning gear component includes the first positioning seat, the positioning baffle being arranged on first positioning seat, institute Positioning baffle is stated to be used to position the gusset;
The support component is between two adjacent fastening assemblies, for the end to two three-dimensional column workpiece Portion provides support.
Further, the detent includes bottom surface and side, the bottom of the detent on multiple positioning components The location of different side of detent on multiple positioning components highly be present and difference be present in face.
Further, be respectively arranged with the first mounting hole on one end of described two side walls, described two side walls it is another Mounting post is provided between end;
Longitudinal compressed part includes compressing installation portion and compresses operating portion, and the compression operating portion includes mother lead screw, worn The first leading screw inside the mother lead screw is located at, be arranged on first handrail of described first leading screw one end and is arranged on described First top of the one leading screw other end, and first top is longitudinally oriented the detent, it is described to compress the one of installation portion End is connected with first mounting hole, and the other end for compressing installation portion is provided with the mother lead screw connection;
The transverse direction portion of holding out against includes the second leading screw, is arranged on second handrail of described second leading screw one end and is arranged on Second top of the second leading screw other end, and described second comes directly towards the laterally toward detent, second leading screw It is located in the mounting post.
Further, the frock matrix include support frame, the first panel above the support frame and The second mounting hole in the first panel, the end positioning component, multiple fastening assemblies, multiple gussets Positioning gear component and multiple support components are bolted with the multiple second mounting hole.
Further, the bottom of the support frame is provided with feet.
Further, the positioning baffle includes the first vertical beam, the second vertical beam and is arranged on first vertical beam and institute The crossbeam between the second vertical beam is stated, second vertical beam is used to position the gusset.
Further, it is circular arc intermediate shape, second vertical beam and institute between first vertical beam and the crossbeam It is circular arc intermediate shape to state between crossbeam.
Further, the support component includes support baseboard, the supporting vertical plate positioned at support baseboard both ends and is located at Second panel in the supporting vertical plate.
Further, the end positioning component includes:Second positioning seat, and be arranged on second positioning seat End location-plate and sidepiece location-plate.
Further, the end location-plate is vertically arranged with the sidepiece location-plate.
Three-dimensional column workpiece welding procedure equipment provided by the invention, same work is taken in the positioning bottom surface of detent and side The design of part profiling, it is possible to achieve three-dimensional column workpiece is accurately positioned, and is also used as the benchmark of detection and adjusting after welding, So that workpiece welding deformation is small, product quality improves.
Brief description of the drawings
In order to illustrate more clearly of the present invention or the technical scheme of prior art, embodiment or prior art will be retouched below The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are some of the present invention Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the overall structure diagram of three-dimensional column workpiece welding jig of the present invention;
Fig. 2 is frock matrix schematic diagram;
Fig. 3 is fastening assembly schematic diagram;
Fig. 4 is positioning component schematic diagram;
Fig. 5 is longitudinal compressed part schematic diagram;
Fig. 6 holds out against portion's schematic diagram to be horizontal;
Fig. 7 is gusset positioning gear component diagram;
Fig. 8 is end positioning component schematic diagram;
Fig. 9 is support component schematic diagram.
Reference:
1- workpiece 11- bottom plate 12- three-dimension curved surface riser 13- gussets
2- frock matrix 201- support frame 202- first panels the second mounting holes of 203-
204- feet 3- fastening assembly 31- positioning component 32- longitudinal directions compressed part
33- laterally holds out against portion 34- detent 311- base 312- side walls
313- the first mounting hole 314- mounting posts 321- compresses installation portion 322- and compresses operating portion
323- mother lead screws 324- the first leading screw the first handrails of 325- 326- first comes directly towards
331- the second leading screw the second handrails of 332- 333- second comes directly towards 341- bottom surfaces
342- sides 4- gussets positioning gear 41- the first positioning seat 42- positioning baffles
421- the first vertical beam 422- the second vertical beam 423- crossbeam 5- support components
501- support baseboard 502- supporting vertical plate 503- second panel 6- ends positioning component
601- the second positioning seat 602- end location-plate 603- sidepiece location-plates
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing in the present invention, to this Technical scheme in invention is clearly and completely described, it is clear that and described embodiment is part of the embodiment of the present invention, Rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under the premise of dynamic, belongs to the scope of protection of the invention.
Fig. 1 is the overall structure diagram of three-dimensional column workpiece welding procedure of the present invention equipment, and Fig. 2 illustrates for frock matrix Figure, Fig. 3 is fastening assembly schematic diagram, and as shown in Figure 1 to Figure 3, welding procedure equipment provided by the invention can be to three-dimensional column Workpiece 1 is welded.Wherein, the three-dimensional column workpiece 1 includes bottom plate 11, the three-dimension curved surface riser 12 positioned at the both sides of bottom plate 11, And the gusset 13 between two relative three-dimension curved surface risers 12.The present embodiment is mainly used to implement the bottom of three-dimensional column workpiece The welding of plate, three-dimension curved surface riser and gusset.
The welding procedure equipment that the present embodiment provides includes, and frock matrix 2, is arranged on frock matrix 2 and is located at frock It is the end positioning component 6 at the both ends of matrix 2 and the multiple fastening assemblies 3 being arranged between two end positioning components 6, multiple Gusset positioning gear component 4 and multiple support components 5, end positioning component 6, multiple fastening assemblies 3, multiple gussets positioning gear group Part 4 and multiple support components 5 are detachably connected with frock matrix.
During specifically used, required according to the curved surface of three-dimensional column workpiece, by end positioning component 6, multiple fastenings Component 3, multiple gussets positioning gear component 4 and multiple support components 5 are installed on frock matrix.
As shown in Fig. 2 frock matrix 2 includes support frame 201 and the first panel 202 above support frame, First panel 202 is installation base surface, is provided with multiple second mounting holes 203.Specifically, the bottom of support frame 201 is set It is equipped with feet 204.
Frock matrix 2 is platform structure form, and flat surface possesses stability, adjustability and versatility as installation base surface, Each component is mechanically connected in flat surface, convenient dismounting, is easy to adjust.The distribution of second mounting hole 203 is according to actual use feelings The relative position of each component under condition and manufacture, different install and use can be met.Can by end positioning component 6, fastening assembly 3, Gusset positioning gear component 4 and support component 5, are required according to the curved surface of three-dimensional column workpiece, are arranged on the second different installations On hole 203.
Wherein, the longitudinal compressed part 32 and horizontal stroke that fastening assembly 3 includes positioning component 31 and is arranged on positioning gear component 31 To the portion that holds out against 33, positioning component 31 includes base 311 and two side walls 312 being oppositely arranged on base 311, two side walls Detent 34 is offered on 312, detent 34 is used to position three-dimensional column workpiece 1, and longitudinal compressed part 32 is used for Longitudinal compression is carried out to the three-dimensional column workpiece 1 in detent 34, portion 33 is laterally held out against and is used for three in detent 34 Dimension columnar workpiece 1 laterally hold out against.
Gusset positioning gear component 4 includes the first positioning seat 41, the positioning baffle 42 being arranged on the first positioning seat 41, positioning Baffle plate is used to position gusset 13;
Support component 5 is between two adjacent fastening assemblies 3, for being carried to the end of two three-dimensional column workpiece 1 For support.
During concrete application, multiple positioning components 31 are arranged according to certain rules, the bottom surface 341 of detent and side 342 be the profiling locating surface of workpiece, and the bottom surface 341 for being adjacent to detent puts workpiece bottom plate 11, is adjacent to the side of detent 342 put the three-dimension curved surface riser 12 of workpiece side, and the positioning baffle 42 for being adjacent to gusset positioning gear component 7 places gusset 13, then The three-dimension curved surface riser 12 of workpiece opposite side is put, is put into cushion block, longitudinal compression is carried out by longitudinal compressed part 32 so that workpiece Bottom plate 11 is smooth, is laterally compressed by laterally holding out against portion 33, avoids the three-dimension curved surface riser 12 of both sides from deforming, so that each zero Part solder side is bonded, and reaches welded condition.Workpiece bottom plate 1 and the three-dimension curved surface riser 12 of both sides are welded, gusset 13 is welded Between the three-dimension curved surface riser 12 of both sides.
Longitudinal compressed part 32 is unclamped after the completion of welding and laterally holds out against portion 33, workpiece is in free state, by detecting work The deflection of the clearance inspection workpiece of part surface and locating surface, according to deformation, add reversible deformation pad in corresponding locating surface, apply Corresponding pressure is added to carry out the adjusting of workpiece.
Further, when two three-dimensional column workpiece 1 are welded together, support can be provided by support component 5, made The two is in same working face, is easy to weld.
Three-dimensional column workpiece welding procedure equipment provided by the invention, same work is taken in the positioning bottom surface of detent and side The design of part profiling so that the bottom plate and three-dimension curved surface riser of workpiece are adjacent to locating surface completely, it is possible to achieve three-dimensional column workpiece Be accurately positioned, be also used as welding after detection and adjusting benchmark, workpiece welding deformation is small, product quality improve;Clamping During put the three-dimension curved surface riser of workpiece bottom plate, the three-dimension curved surface riser of side, gusset and opposite side successively, compress and top Next clamping for completing whole workpiece, clamped one time can realize the welding, detection and adjusting of workpiece, are needed relative to tradition The substep welding manner of multiple clamping, efficiency high, reduces production cycle and the labor intensity of worker;Each end positioning component, Fastening assembly, gusset positioning gear component, support component all mechanically connect with frock matrix, detachably, can adjust, alternatively, spirit It is active strong.
Detailed embodiment is used below, and the structure of each part is described in detail.
In the present embodiment, fastening assembly includes positioning component, longitudinal compressed part and laterally holds out against portion.Fig. 3 is fastening group Part schematic diagram, Fig. 4 are positioning component schematic diagram, and Fig. 5 is longitudinal compressed part schematic diagram, and Fig. 6 holds out against portion's schematic diagram to be horizontal.Such as figure Shown in 3 to Fig. 6,
The first mounting hole 313, described two side walls 312 are respectively arranged with one end of two side walls 312 of positioning component 4 The other end between be provided with mounting post 314.
Longitudinal compressed part 32 include compress installation portion 321 and compress operating portion 322, compress operating portion include mother lead screw 323, The first leading screw 324 inside mother lead screw 323 is located in, first handrail 325 of the one end of the first leading screw 324 is arranged on and is arranged on First top 326 of the other end of the first leading screw 324, and the first top 326 is longitudinally oriented detent 34, compresses installation portion 321 One end be connected with the first mounting hole 313, the other end for compressing installation portion 321 is provided with mother lead screw 323 and connected.
Laterally holding out against portion 33 includes the second leading screw 331, is arranged on second handrail 332 of the one end of the second leading screw 331 and sets Put and come directly towards the 333, and second top 333 laterally toward detent 34, the second leading screw the second of the other end of the second leading screw 331 331 are located in mounting post 314.
Longitudinal compressed part 32 holds out against process requirements of the portion 33 according to assembling, welding process requirement and adjusting with horizontal, is pressed in Diverse location and appropriate angle, the operating space of welding, adjusting is reserved, ensure the smooth and implementation of adjusting of welding, simultaneously Ensure and reduce welding deformation.
Fig. 7 is gusset positioning gear component diagram, as shown in fig. 7, gusset positioning gear component 4 includes positioning seat 41, set Positioning baffle 42 on positioning seat 41, positioning baffle 42 include the first vertical beam 421, the second vertical beam 422 and are arranged on first Crossbeam 423 between the vertical beam 422 of vertical beam 421 and second, the second vertical beam 422 are used to position gusset 13.
Alternatively, between the first vertical beam 421 and crossbeam 423 it is circular arc intermediate shape, the second vertical beam 422 and crossbeam 423 Between be circular arc intermediate shape.
Positioning baffle 42 is fabricated to flipped form, turns down positioning baffle 42, it is three-dimensional bent that the second vertical beam 422 is in workpiece both sides Between face riser 12, gusset 13 is adjacent to vertical beam 422, the positioning to gusset 13 can be achieved;After the completion of welding, roll up positioning gear Plate 42, the process positioning baffle rolled up will not bump to workpiece, it is ensured that workpiece smoothly goes out tire.
Fig. 8 is end positioning component schematic diagram, as shown in figure 8, end positioning component 6 includes:Second positioning seat 601, with And it is arranged on end location-plate 602 and sidepiece location-plate 603 on the second positioning seat 601.
Alternatively, end location-plate 602 is vertically arranged with sidepiece location-plate 603.
End positioning component 6 can play a part of supporting workpiece termination and termination is positioned, and end location-plate 602 is right The end of workpiece termination is positioned, and sidepiece location-plate 603 positions to the sidepiece of workpiece termination, makes workpiece termination concordant, Workpiece is prevented to be deformed in clamping, welding process.
Fig. 9 is support component schematic diagram, as shown in figure 9, support component 5 includes support baseboard 501, positioned at support baseboard The supporting vertical plate 502 at 501 both ends and the second panel 503 in supporting vertical plate 502.
The support component 5 is between two adjacent fastening assemblies 3, for two three-dimensional column workpiece 1 End provide support, prevent workpiece to be deformed in clamping, welding process.
Finally it should be noted that:Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations;To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that:Its according to The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered Row equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (10)

1. the welding procedure equipment of a kind of three-dimensional column workpiece, it is characterised in that the three-dimensional column workpiece includes bottom plate, is located at The three-dimension curved surface riser of the bottom plate both sides, and the gusset between two relative three-dimension curved surface risers;The welding Technological equipment includes, frock matrix, is arranged on the frock matrix and positioned at the end positioning group at the frock matrix both ends Part and the multiple fastening assemblies being arranged between two end positioning components, multiple gussets positioning gear component and multiple Support component, the end positioning component, multiple fastening assemblies, multiple gusset positioning gear components and multiple branch Support component is detachably connected with frock matrix, wherein,
The fastening assembly includes positioning component and the longitudinal compressed part being arranged on the positioning component and laterally holds out against portion, institute Stating positioning component includes base and two side walls being oppositely arranged on the base, and positioning is offered in described two side walls Groove, the detent are used to position the three-dimensional column workpiece, and longitudinal compressed part is used for the positioning Three-dimensional column workpiece in groove carries out longitudinal compression, and the transverse direction portion of holding out against is used for the three-dimensional column in the detent Workpiece laterally hold out against;
The gusset positioning gear component includes the first positioning seat, the positioning baffle being arranged on first positioning seat, described fixed Position baffle plate is used to position the gusset;
The support component is between two adjacent fastening assemblies, for being carried to the end of two three-dimensional column workpiece For support.
2. equipment according to claim 1, it is characterised in that the detent includes bottom surface and side, multiple described The floor height of detent on positioning component is present residing for the side of different detents on multiple positioning components Position exist it is different.
3. equipment according to claim 1, it is characterised in that the first peace is respectively arranged with one end of described two side walls Hole is filled, mounting post is provided between the other end of described two side walls;
Longitudinal compressed part includes compressing installation portion and compresses operating portion, and the compression operating portion includes mother lead screw, is located in The first leading screw inside the mother lead screw, it is arranged on first handrail of described first leading screw one end and is arranged on described first First top of the thick stick other end, and first top is longitudinally oriented the detent, described one end for compressing installation portion with The first mounting hole connection, the other end for compressing installation portion are provided with the mother lead screw connection;
The transverse direction portion of holding out against includes the second leading screw, is arranged on second handrail of described second leading screw one end and is arranged on described Second top of the second leading screw other end, and laterally toward the detent, second leading screw are worn for second top In the mounting post.
4. equipment according to claim 1, it is characterised in that the frock matrix includes support frame, positioned at the branch First panel above support frame frame and the second mounting hole in the first panel, it is the end positioning component, multiple The fastening assembly, multiple gusset positioning gear components and multiple support components are led to the multiple second mounting hole Cross bolt connection.
5. equipment according to claim 4, it is characterised in that the bottom of the support frame is provided with feet.
6. equipment according to claim 1, it is characterised in that the positioning baffle include the first vertical beam, the second vertical beam with And the crossbeam between first vertical beam and second vertical beam is arranged on, second vertical beam is used to determine the gusset Position.
7. equipment according to claim 6, it is characterised in that be circular arc mistake between first vertical beam and the crossbeam Shape is crossed, is circular arc intermediate shape between second vertical beam and the crossbeam.
8. equipment according to claim 1, it is characterised in that the support component includes support baseboard, positioned at support bottom The supporting vertical plate at plate both ends and the second panel in the supporting vertical plate.
9. equipment according to claim 1, it is characterised in that the end positioning component includes:Second positioning seat, and The end location-plate and sidepiece location-plate being arranged on second positioning seat.
10. equipment according to claim 9, it is characterised in that the end location-plate is vertical with the sidepiece location-plate Set.
CN201710771275.9A 2017-08-31 2017-08-31 Three-dimensional column workpiece welding procedure equipment Active CN107414391B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710771275.9A CN107414391B (en) 2017-08-31 2017-08-31 Three-dimensional column workpiece welding procedure equipment

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Application Number Priority Date Filing Date Title
CN201710771275.9A CN107414391B (en) 2017-08-31 2017-08-31 Three-dimensional column workpiece welding procedure equipment

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CN107414391A true CN107414391A (en) 2017-12-01
CN107414391B CN107414391B (en) 2019-06-14

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489913A (en) * 2011-11-16 2012-06-13 山东丰汇设备技术有限公司 Movably combined crane tower section welding fixture with attachment device and product
US20120279949A1 (en) * 2011-05-07 2012-11-08 Simmons Robert J Box column assembly
CN102825408A (en) * 2012-08-16 2012-12-19 三一重工股份有限公司 Standing column assembly welding tool
CN104097006A (en) * 2014-07-13 2014-10-15 李志勇 Fast positioning clamp
CN204504573U (en) * 2014-12-17 2015-07-29 湖南通源机电科技有限公司 Before and after crane frame, section group is to frock
CN104999207A (en) * 2014-04-25 2015-10-28 仪征赛克工装装备有限公司 Integrated clamp support
CN104999214A (en) * 2015-08-06 2015-10-28 南车青岛四方机车车辆股份有限公司 Side beam pallet, assembling method and SDB80 subway side beam inner rib and outer body integrated pallet
CN204867891U (en) * 2015-06-11 2015-12-16 徐州重型机械有限公司 Hoist solid of revolution support assembly welding jig
CN205967953U (en) * 2016-08-30 2017-02-22 安徽好运机械有限公司 Fork truck outer mast joint welding mould

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120279949A1 (en) * 2011-05-07 2012-11-08 Simmons Robert J Box column assembly
CN102489913A (en) * 2011-11-16 2012-06-13 山东丰汇设备技术有限公司 Movably combined crane tower section welding fixture with attachment device and product
CN102825408A (en) * 2012-08-16 2012-12-19 三一重工股份有限公司 Standing column assembly welding tool
CN104999207A (en) * 2014-04-25 2015-10-28 仪征赛克工装装备有限公司 Integrated clamp support
CN104097006A (en) * 2014-07-13 2014-10-15 李志勇 Fast positioning clamp
CN204504573U (en) * 2014-12-17 2015-07-29 湖南通源机电科技有限公司 Before and after crane frame, section group is to frock
CN204867891U (en) * 2015-06-11 2015-12-16 徐州重型机械有限公司 Hoist solid of revolution support assembly welding jig
CN104999214A (en) * 2015-08-06 2015-10-28 南车青岛四方机车车辆股份有限公司 Side beam pallet, assembling method and SDB80 subway side beam inner rib and outer body integrated pallet
CN205967953U (en) * 2016-08-30 2017-02-22 安徽好运机械有限公司 Fork truck outer mast joint welding mould

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