CN104368929A - Multifunctional automatic welding jig - Google Patents

Multifunctional automatic welding jig Download PDF

Info

Publication number
CN104368929A
CN104368929A CN201410485136.6A CN201410485136A CN104368929A CN 104368929 A CN104368929 A CN 104368929A CN 201410485136 A CN201410485136 A CN 201410485136A CN 104368929 A CN104368929 A CN 104368929A
Authority
CN
China
Prior art keywords
curb girder
automatic welding
plate
main body
jig main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410485136.6A
Other languages
Chinese (zh)
Other versions
CN104368929B (en
Inventor
李文
张志毅
吴发杰
陈北平
张世欣
李阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Qingdao Sifang Co Ltd
Original Assignee
CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd filed Critical CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority to CN201410485136.6A priority Critical patent/CN104368929B/en
Publication of CN104368929A publication Critical patent/CN104368929A/en
Application granted granted Critical
Publication of CN104368929B publication Critical patent/CN104368929B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/28Beams

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses a multifunctional automatic welding jig. The multifunctional automatic welding jig comprises a jig body, a side beam adjustment mechanism, cross beam adjustment mechanisms, cross beam and side beam pressing mechanisms and a transition disc, wherein the jig body is formed by welding two pieces of square steel and a steel plate, the two pieces of square steel are parallel to each other, the side beam adjustment mechanism is fixed to the middle upper portion of the jig body and is composed of a bottom surface, a top surface, a plurality of tension bolts and a plurality of puller bolts, the bottom surface is parallel to the top surface, the tension bolts and the puller bolts are arranged between the bottom surface and the top surface, the cross beam adjustment mechanisms are fixed to the two sides of the jig body, the two sides of each cross beam adjustment mechanism are each provided with two transverse steel plates, a series of long through sliding grooves which are parallel to one another are formed in each steel plate, V-shaped blocks are matched with the sliding grooves through sliding blocks on the sliding grooves, the cross beam and side beam pressing mechanisms are arranged at the two ends of the jig body, and each cross beam and side beam pressing mechanism comprises a supporting plate fixed above the jig body, a bolt, a cross beam pressing plate and a side beam pressing plate. The multifunctional automatic welding jig has the advantages that the universality is high, the welding jig can meet the requirement for automatic welding of various side beams in two different kinds of structures and sizes and various cross beams in two different kinds of structures and sizes, tool manufacturing cost is reduced, a small storage site is occupied, and the flexibility of the automatic welding process is improved.

Description

A kind of multi-functional automatic welding fixture
Technical field
The present invention relates to a kind of fixture, specifically relate to a kind of multi-functional automatic welding fixture being applicable to rail vehicle different size curb girder, crossbeam.
 
Background technology
Traditional automatic welding fixture is special fixture, according to the kind of product and the different and corresponding relevant automatic welding fixture of size.
Rail vehicle curb girder, as shown in Figure 1, its length and short transverse different according to the difference of vehicle.Traditional side beam welding fixture, as shown in Figure 2, adopt location, middle part and compressing structure, beam side portions weld seam is caused to be subject to blocking of fixture, the continuous welding of elongated weld seam cannot be realized, therefore there is joint in curb girder weld seam, needs manual polishing process joint and artificial supplementation welding, cause that automaticity is not high, welding efficiency is low after automatic welding.In addition, workpiece welds substantially in a free state, and welding deformation is large, and postwelding needs machinery or flame repairing to ensure workpiece size.
Rail vehicle crossbeam, as shown in Figure 3, on it steel pipe spacing and length different according to the difference of vehicle.Traditional beam clamp, as shown in Figure 4, its length direction and width are fixed, and are only suitable for the automatic welding of single product, poor universality.
Therefore, when the curb girder to different automobile types, crossbeam carry out automatic welding, need to switch between different fixture, because curb girder and crossbeam volume and weight are comparatively large, cause the problems such as on-the-spot frock quantity is more, replacing inconvenience, manufacturing cost increase, difficult management.
 
Summary of the invention
Main purpose of the present invention is to solve the problem and not enough, provides a kind of multi-functional automatic welding fixture of welding clamping problem meeting the dissimilar crossbeam of rail vehicle, curb girder.
The present invention is achieved in that a kind of multi-functional automatic welding fixture, comprises jig main body, curb girder guiding mechanism, crossbeam detent mechanism, horizontal curb girder hold-down mechanism and crosses scale; Wherein jig main body is formed by two parallel square steel and Plate Welding; In the middle part of jig main body, top is fixed with curb girder guiding mechanism, is made up of the bottom surface be parallel to each other, end face and the some turnbuckles be arranged on therebetween and puller bolt; Jig main body both sides fixed cross beam guiding mechanism, comprises both sides and arranges 2 horizontal steel plates respectively, and steel plate is provided with a series of elongated and chute be parallel to each other, and V-block and chute are coordinated by the slide block on it; Jig main body two ends arrange horizontal curb girder hold-down mechanism, comprise the gripper shoe, bolt, bottom nut, top nut, crossbeam pressing plate and the curb girder pressing plate that are fixed on above jig main body, described gripper shoe is provided with longitudinal long chute, bolt with bolt head inwardly key mode to be outwardly arranged on chute and to be fixed by bottom nut, crossbeam pressing plate and curb girder pressing plate are enclosed within bolt, be bolted with top nut above pressing plate, both ends, described curb girder pressing plate bottom surface are provided with positioning boss; Be connected with excessive disk center by bearing pin in the middle part of jig main body bottom surface.
Multi-functional automatic welding fixture of the present invention, tool has the following advantages: (1) highly versatile, same set of frock can meet two kinds of dissimilar structures, the various curb girders of different size, the automatic welding requirement of crossbeam, can rapid adjustment switch, the flexibility degree of the automatic welding operation that decreases frock making expense, do not take frock storage space, improves; (2) structure is simply unobstructed, can realize the uninterrupted automatic welding of each size, similar structures curb girder weld seam, enhance productivity; (3) this fixture is for rigidly fixing frock, locates more, effectively controls the welding deformation of workpiece, simplifies post welding distortion correcting process.
In order to reach better effect, multi-functional automatic welding fixture of the present invention can also adopt following measures:
1, described crossbeam pressing plate is made up of channel-section steel and the steel plate be welded on bottom channel-section steel.Due to crossbeam workpiece quality comparatively large (about 650Kg), need to overturn back and forth in automatic Arc Welding, required chucking power will be very large, and channel-section steel lightweight construction, intensity are large, do not produce permanent deformation bearing larger chucking power situation lower clamp, the steel plate bottom channel-section steel play increase fixture and workpiece contact area, prevent fixture from weighing the effect of workpiece wounded.
2, multi-functional automatic welding clamping of the present invention also comprises curb girder end detent mechanism, be made up of compactor, top-fastener, pin, support and location-plate, wherein location-plate is fixed on two ends of jig main body, support carries out dismountable connection with location-plate by pin, top-fastener and compactor respectively vertical and longitudinal on be spirally connected with support.When carrying out automatic welding to the subway curb girder not with spring structure, by curb girder end detent mechanism according on fixture, the structure of this plane and two pits can play the effect compressing its end and hold out against, and plays the effect of rigidly fixing on the other hand, prevents the welding deformation of workpiece.
3, described horizontal curb girder hold-down mechanism also comprises round pin, is enclosed within bolt and is arranged between gripper shoe and bottom nut, be provided with square key bottom round pin, and correspondingly support plate upper surface is positioned at chute both sides and is provided with some parallel keyways, and square key is placed in keyway.Its advantage is, by square key being placed in different keyway the adjustment completed on curb girder pressing plate length direction, to meet the location of different automobile types curb girder, plays anti-deformation effect in welding process simultaneously.
 
Accompanying drawing explanation
Fig. 1 is the structural representation of the curb girder of automatic welding workpiece.
Fig. 2 is special fixture curb girder being carried out to automatic welding.
Fig. 3 is the structural representation of the crossbeam of automatic welding workpiece.
Fig. 4 is special fixture crossbeam being carried out to automatic welding.
The structure three-dimensional figure of Fig. 5 embodiment of the present invention.
Fig. 6 is the structural representation of described jig main body.
Fig. 7 is the structural representation of described horizontal curb girder hold-down mechanism.
Fig. 8 is along A-A sectional view in Fig. 7.
Fig. 9 is the structural representation of described curb girder end detent mechanism.
In figure, each piece number illustrates:
1-jig main body, 2-crosses scale, 3-curb girder guiding mechanism, 4-adjusting mechanism for cross beam, the horizontal curb girder hold-down mechanism of 5-, 6-crossbeam pressing plate; 7-longeron pressing plate, 8-curb girder end detent mechanism; 9-round pin; 10-nut; 11-gripper shoe; 12-compactor; 13-top-fastener; 14-sells; 15-support; 16-location-plate; 17-square key; 18-keyway; 19-bolt.
 
Detailed description of the invention
Below in conjunction with accompanying drawing, 5 to 7 couples of the present invention are described in further detail.
As shown in Figure 5, multi-functional automatic welding fixture of the present invention comprises: jig main body 1, excessively scale 2, curb girder guiding mechanism 3, adjusting mechanism for cross beam 4, horizontal curb girder hold-down mechanism 5, curb girder end detent mechanism 8.
As shown in Figure 6, described jig main body 1 is two rectangular steel pipes and welded-steel plate construction, and rigidity is large, meets and rigidly fixes demand.
Cross scale 2, its center is connected with in the middle part of jig main body 1 bottom surface by bearing pin, plays the connection connecting fixture of the present invention and welding robot, and bearing pin is used for location, the center line of jig main body and robot turntable clamper are overlapped, thus ensures the precision of automatic welding.
Curb girder guiding mechanism 3, be fixed on top in the middle part of jig main body 1, by 4 turnbuckles and 4 puller bolts, upper and lower two blocks of parallel steel plates are connected, described lower steel plate is fixed on jig main body 1, thus the step-less adjustment realized in short transverse, play the effect supporting and prevent torsional deformation in side beam welding process.
Crossbeam location structure 4, comprise 4 blocks of horizontal steel plates, be welded on jig main body 1 both sides respectively, every side arranges 2 pieces, horizontal steel plate is opened the groove of a series of slotted hole, is provided with slide block at the bottom of V-block, thus V-block is moved in chute by its top shoe, also can adjust between different chute, thus carry out the adjustment in horizontal and vertical both direction, to meet the clamping requirement under beam steel tube pitch, steel pipe length different situations; Wherein the inclined-plane steel pipe circumference of V-block is tangent, the sensing center of circle, direction of holding power, thus makes V-block can play the effect of location steel tubing workpiece.
As shown in Figure 7, horizontal curb girder hold-down mechanism 5, comprises gripper shoe 11, bolt 19, round pin 9, square key 17, crossbeam pressing plate 6, curb girder pressing plate 7 and nut 10, and described gripper shoe 8 is provided with longitudinal long chute, bolt 19 is oppositely arranged on chute, its bolt head in chute key outside chute; Round pin 9 is enclosed within bolt 19 and is placed in gripper shoe 11, square key is provided with bottom round pin 9, correspondingly gripper shoe 8 upper surface is positioned at chute both sides and is provided with some parallel keyway 18(as shown in Figure 8), square key 17 is placed in keyway 18, play accurate positioning action, prevent from welding and shrink the longitudinal sliding motion that causes, nut 19 to be screwed onto on bolt 19 and to be positioned at above round pin 9, thus it is fixing to reach bolt by tightening nut.Crossbeam pressing plate 6 and curb girder pressing plate 7 are enclosed within round pin 5, and its middle cross beam pressing plate 6 is channel-section steel and welded-steel plate construction, can prevent fixture permanent deformation and fixture from weighing workpiece wounded; Layback pressing plate 7 is provided with the steel plate of positioning boss for two ends, bottom surface, as shown in Figure 7, side beam welding can be prevented to be out of shape; Bolt 5 top is bolted with nut 10, carries out the adjustment on length direction, meets the location of different automobile types curb girder, play anti-deformation effect in welding process simultaneously by the long chute on clamp body and square key 17 in different keyway.
As shown in Figure 9, curb girder end detent mechanism 8, be made up of compactor 12, top-fastener 13, pin 14, support 15 and location-plate 16, wherein location-plate 16 is fixed on two ends of jig main body, support 15 carries out dismountable connection with location-plate 16 by pin 14, top-fastener 13 and compactor 12 respectively vertical and longitudinal on be spirally connected with support 15.When carrying out automatic welding to the subway curb girder not with spring structure, by curb girder end detent mechanism according on fixture, the structure of this plane and two pits can play the effect compressing its end and hold out against, and plays the effect of rigidly fixing on the other hand, prevents the welding deformation of workpiece.
As mentioned above, plan content given in conjunction with the accompanying drawings and embodiments, can derive similar technical scheme.In every case be the content not departing from technical solution of the present invention, any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims (5)

1. a multi-functional automatic welding fixture, is characterized in that: comprise jig main body, curb girder guiding mechanism, crossbeam detent mechanism, horizontal curb girder hold-down mechanism and cross scale; Wherein jig main body is formed by two parallel square steel and Plate Welding; In the middle part of jig main body, top is fixed with curb girder guiding mechanism, is made up of the bottom surface be parallel to each other, end face and the some turnbuckles be arranged on therebetween and puller bolt; Jig main body both sides fixed cross beam guiding mechanism, comprises both sides and arranges 2 horizontal steel plates respectively, and steel plate is provided with a series of elongated and chute be parallel to each other, and V-block and chute are coordinated by the slide block on it; Jig main body two ends arrange horizontal curb girder hold-down mechanism, comprise the gripper shoe, bolt, bottom nut, top nut, crossbeam pressing plate and the curb girder pressing plate that are fixed on above jig main body, described gripper shoe is provided with longitudinal long chute, bolt with bolt head inwardly key mode to be outwardly arranged on chute and to be fixed by bottom nut, crossbeam pressing plate and curb girder pressing plate are enclosed within bolt, be bolted with top nut above pressing plate, both ends, described curb girder pressing plate bottom surface are provided with positioning boss; Be connected with excessive disk center by bearing pin in the middle part of jig main body bottom surface.
2. multi-functional automatic welding fixture according to claim 1, is characterized in that: described crossbeam pressing plate is made up of channel-section steel and the steel plate be welded on bottom channel-section steel.
3. multi-functional automatic welding clamping according to claim 1 or 2, it is characterized in that: described multi-functional automatic welding clamping also comprises curb girder end detent mechanism, be made up of compactor, top-fastener, pin, support and location-plate, wherein location-plate is fixed on two ends of jig main body, support carries out dismountable connection with location-plate by pin, top-fastener and compactor respectively vertical and longitudinal on be spirally connected with support.
4. multi-functional automatic welding clamping according to claim 1 or 2, it is characterized in that: described horizontal curb girder hold-down mechanism also comprises round pin, being enclosed within bolt is arranged between gripper shoe and bottom nut, square key is provided with bottom round pin, correspondingly support plate upper surface is positioned at chute both sides and is provided with some parallel keyways, and square key is placed in keyway.
5. multi-functional automatic welding clamping according to claim 3, it is characterized in that: described horizontal curb girder hold-down mechanism also comprises round pin, being enclosed within bolt is arranged between gripper shoe and bottom nut, square key is provided with bottom round pin, correspondingly support plate upper surface is positioned at chute both sides and is provided with some parallel keyways, and square key is placed in keyway.
CN201410485136.6A 2014-09-22 2014-09-22 A kind of multi-functional automatic welding fixture Active CN104368929B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410485136.6A CN104368929B (en) 2014-09-22 2014-09-22 A kind of multi-functional automatic welding fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410485136.6A CN104368929B (en) 2014-09-22 2014-09-22 A kind of multi-functional automatic welding fixture

Publications (2)

Publication Number Publication Date
CN104368929A true CN104368929A (en) 2015-02-25
CN104368929B CN104368929B (en) 2016-02-10

Family

ID=52548260

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410485136.6A Active CN104368929B (en) 2014-09-22 2014-09-22 A kind of multi-functional automatic welding fixture

Country Status (1)

Country Link
CN (1) CN104368929B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537991A (en) * 2015-12-29 2016-05-04 南车眉山车辆有限公司 Adapter drilling fixture
CN106521371A (en) * 2016-10-27 2017-03-22 北京航星机器制造有限公司 Thermal correcting method for rust-proof aluminum alloy metal plate welded saddle-shaped component
CN108772658A (en) * 2018-06-19 2018-11-09 宝鸡中车时代工程机械有限公司 Hollow type truck side sill with automatic centering clamping function welds displacement tool
CN109048158A (en) * 2018-06-28 2018-12-21 中车长春轨道客车股份有限公司 Anti- dress posture group for side beam welding is to positioning tool
CN109290720A (en) * 2018-11-23 2019-02-01 成都环龙智能机器人有限公司 Beam welding work station
CN110202506A (en) * 2019-06-28 2019-09-06 无锡洲翔成套焊接设备有限公司 A kind of steel structure column fixture
CN115070448A (en) * 2022-06-29 2022-09-20 天润工业技术股份有限公司 Clamp for casting beam

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201089071Y (en) * 2007-08-21 2008-07-23 南车戚墅堰机车有限公司 Automatic assembly welding device for car frame side beam
CN201519850U (en) * 2009-10-15 2010-07-07 中国北车集团大同电力机车有限责任公司 Clamping device for assembly welding of orbit vehicle side wall top side beams
CN102101219A (en) * 2010-12-14 2011-06-22 南车南京浦镇车辆有限公司 Production method of chassis of railway vehicle
CN102233503A (en) * 2011-05-09 2011-11-09 南车戚墅堰机车有限公司 General device of locomotive body assembly
CN202162519U (en) * 2011-05-17 2012-03-14 南方汇通股份有限公司 Modularized assembling clamp for rail wagon base frame
CN102825413A (en) * 2012-09-10 2012-12-19 北京二七轨道交通装备有限责任公司 Assembling and welding tooling of bogie frame
CN202984962U (en) * 2012-09-10 2013-06-12 北京二七轨道交通装备有限责任公司 Installing and welding tool of bogie frame
CN203679624U (en) * 2014-02-26 2014-07-02 江苏中辆科技有限公司 Tool for welding upper plate of side beam of bogie
CN203726032U (en) * 2013-12-17 2014-07-23 济南轨道交通装备有限责任公司 Truck frame combined type assembling mould
CN204277280U (en) * 2014-09-22 2015-04-22 南车青岛四方机车车辆股份有限公司 A kind of multi-functional automatic welding fixture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1698030A1 (en) * 1988-01-04 1991-12-15 Научно-Производственное Объединение Технологии Механосборочного Производства И Специального Технологического Оборудования Assembling device for welding

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201089071Y (en) * 2007-08-21 2008-07-23 南车戚墅堰机车有限公司 Automatic assembly welding device for car frame side beam
CN201519850U (en) * 2009-10-15 2010-07-07 中国北车集团大同电力机车有限责任公司 Clamping device for assembly welding of orbit vehicle side wall top side beams
CN102101219A (en) * 2010-12-14 2011-06-22 南车南京浦镇车辆有限公司 Production method of chassis of railway vehicle
CN102233503A (en) * 2011-05-09 2011-11-09 南车戚墅堰机车有限公司 General device of locomotive body assembly
CN202162519U (en) * 2011-05-17 2012-03-14 南方汇通股份有限公司 Modularized assembling clamp for rail wagon base frame
CN102825413A (en) * 2012-09-10 2012-12-19 北京二七轨道交通装备有限责任公司 Assembling and welding tooling of bogie frame
CN202984962U (en) * 2012-09-10 2013-06-12 北京二七轨道交通装备有限责任公司 Installing and welding tool of bogie frame
CN203726032U (en) * 2013-12-17 2014-07-23 济南轨道交通装备有限责任公司 Truck frame combined type assembling mould
CN203679624U (en) * 2014-02-26 2014-07-02 江苏中辆科技有限公司 Tool for welding upper plate of side beam of bogie
CN204277280U (en) * 2014-09-22 2015-04-22 南车青岛四方机车车辆股份有限公司 A kind of multi-functional automatic welding fixture

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537991A (en) * 2015-12-29 2016-05-04 南车眉山车辆有限公司 Adapter drilling fixture
CN106521371A (en) * 2016-10-27 2017-03-22 北京航星机器制造有限公司 Thermal correcting method for rust-proof aluminum alloy metal plate welded saddle-shaped component
CN106521371B (en) * 2016-10-27 2018-05-15 北京航星机器制造有限公司 Rust-preventing aluminum alloy metal plate welds the hot sizing method of shape of a saddle component
CN108772658A (en) * 2018-06-19 2018-11-09 宝鸡中车时代工程机械有限公司 Hollow type truck side sill with automatic centering clamping function welds displacement tool
CN109048158A (en) * 2018-06-28 2018-12-21 中车长春轨道客车股份有限公司 Anti- dress posture group for side beam welding is to positioning tool
CN109048158B (en) * 2018-06-28 2020-06-09 中车长春轨道客车股份有限公司 Reversed installation posture assembly positioning tool for welding side beam
CN109290720A (en) * 2018-11-23 2019-02-01 成都环龙智能机器人有限公司 Beam welding work station
CN110202506A (en) * 2019-06-28 2019-09-06 无锡洲翔成套焊接设备有限公司 A kind of steel structure column fixture
CN115070448A (en) * 2022-06-29 2022-09-20 天润工业技术股份有限公司 Clamp for casting beam

Also Published As

Publication number Publication date
CN104368929B (en) 2016-02-10

Similar Documents

Publication Publication Date Title
CN104368929B (en) A kind of multi-functional automatic welding fixture
CN204277280U (en) A kind of multi-functional automatic welding fixture
CN102632415B (en) Tee-joint clamping and positioning device
CN101323070B (en) Complete interchanging quick fix tower section K lever welding fixture
CN107877085B (en) Automatic pipeline assembling and splicing equipment
CN104607841A (en) Welding device and welding, pressing and clamping method
CN201074154Y (en) Overlapping apparatus for escalator girder segmentation parts
CN104191127A (en) Locomotive roof framework assembly station
CN201291365Y (en) Welding positioner clamper special for 200km/h electric locomotive frame work
CN211248939U (en) Welding tool for front and back assembly of car roof
CN204747860U (en) Multi -functional welding jig
CN108326481A (en) A kind of automatic welding track support device
CN203779038U (en) Car subframe assembly welding jig
CN202398959U (en) Welding tool for movable combined crane tower section with attachment device and tower section
CN204621435U (en) The welding jigs and fixtures of longitudinal wall plate and band steel
CN202716000U (en) Automobile front-longitudinal-beam connection plate assembly welding jig
CN203316955U (en) Clamp for welding workpiece
CN201579576U (en) Welding fixture of robot
CN102152055B (en) Fixture device for centering welding manufacture of square/flat sample
CN209125216U (en) A kind of portable adjustable welding shaft part positioning tool
CN202673898U (en) Device for improving connection strength of plates
CN111390471A (en) Clamping device and clamping method for forming and welding of rail grinding wagon frame
CN110773934A (en) Welding tool for front and back assembly of car roof
JP5266921B2 (en) Laser welding method and plate material supporting apparatus
CN202053039U (en) Welding clamp for truss girder

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88

Patentee after: CRRC QINGDAO SIFANG CO., LTD.

Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88

Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd.