CN107790948B - Assembly welding tool for underframe assembly of monorail car - Google Patents
Assembly welding tool for underframe assembly of monorail car Download PDFInfo
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- CN107790948B CN107790948B CN201711295778.XA CN201711295778A CN107790948B CN 107790948 B CN107790948 B CN 107790948B CN 201711295778 A CN201711295778 A CN 201711295778A CN 107790948 B CN107790948 B CN 107790948B
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- limiting block
- assembly welding
- dimensional end
- cross beam
- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a monorail car underframe assembly welding tool. The tool comprises a one-dimensional end part assembly welding frame, a middle part assembly welding frame and a two-dimensional end part assembly welding frame, wherein the one-dimensional end part assembly welding frame comprises a bottom support frame, a longitudinal beam, a cross beam, a one-dimensional end limiting block and a central wire pulling device, and the one-dimensional end limiting block and the central wire pulling device are arranged on the cross beam at the forefront end; the middle part assembly welding frame comprises a bottom surface supporting frame, a longitudinal beam, a cross beam and a vehicle body side supporting limit block, wherein the vehicle body side supporting limit block is fixed on the bottom surface supporting frame and positioned at one side close to the one-dimensional end part assembly welding frame; the two-dimensional end part assembly welding frame comprises a bottom surface supporting frame, a longitudinal beam, a cross beam, an edge beam side limiting block and a two-dimensional end limiting block, wherein the two-dimensional end limiting block is arranged on the cross beam at the tail end. The tool disclosed by the invention can be used for smoothly and simply demolding, and can simultaneously meet the requirements of forward assembly and reverse assembly positioning.
Description
Technical Field
The invention relates to a monorail car underframe assembly welding tool.
Background
Compared with the traditional light rail type double-rail vehicle, the single-rail vehicle has the advantages of light vehicle body, small rail body quantity, small turning radius, low noise, capability of better blending into urban environment and the like, and can provide new options for urban public transportation and scenic spot transportation connection in the future.
The single-rail car chassis framework is different from the traditional double-rail car, and mainly comprises a one-dimensional end chassis assembly, a two-dimensional end chassis assembly, two side beams, a cross beam and the like, wherein the end chassis assembly comprises a front end beam, a left car body support, a right car body support, a rear cross beam and the like. The main material of the chassis framework of the monorail car is carbon steel material, and is riveted with the aluminum alloy side wall and the roof after assembly welding is completed, so that the aim of light weight of the car body is fulfilled.
However, the one-dimensional end and the two-dimensional end of the monorail car underframe are special-shaped pieces, and have the difficulties of large volume, high positioning accuracy requirement, large welding deformation caused by large welding volume and the like. Factors such as positioning and welding deformation of parts and components tend to cause difficult demoulding after the chassis is assembled and welded, and excessive disassembly and positioning can cause positioning failure and low production efficiency. Meanwhile, the fact that the operation space of the production site is limited is considered, and the tooling is required to meet the requirement of welding front weld joints of the underframe assembly and welding back weld joints of the underframe assembly.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a monorail car chassis assembly welding tool which can smoothly and simply demould on the premise of ensuring the effectiveness of positioning and can simultaneously meet the requirements of forward assembly and reverse assembly positioning.
The technical scheme adopted by the invention is as follows:
the assembly welding tool for the monorail car underframe assembly comprises a one-dimensional end assembly welding frame, a middle assembly welding frame and a two-dimensional end assembly welding frame, wherein the one-dimensional end assembly welding frame comprises a first bottom support frame, a first longitudinal beam, a first transverse beam, a one-dimensional end limiting block and a central wire pulling device, and a clamping device is arranged on the first transverse beam; the one-dimensional end limiting block and the central wire pulling device are arranged on a first crossbeam at the forefront end, and the first crossbeam at the forefront end is fixed on the first bottom surface supporting frame; the middle part assembly welding frame comprises a second bottom surface supporting frame, a second longitudinal beam, a second cross beam and a vehicle body side supporting limiting block, and the vehicle body side supporting limiting block is fixed on the second bottom surface supporting frame and is positioned at one side close to the one-dimensional end part assembly welding frame; the guide rail with the T-shaped groove, the side beam limiting block and the side beam pressing device are arranged on the second longitudinal beam, and the cross beam limiting block is arranged on the guide rail with the T-shaped groove; the two-dimensional end part assembly welding frame comprises a third bottom surface supporting frame, a third longitudinal beam, a third cross beam and a two-dimensional end limiting block, and a pressing device is arranged on the third cross beam; the two-dimensional end limiting block is arranged on a third cross beam at the tail end, and the third cross beam at the tail end is fixed on a third bottom surface supporting frame; and the third longitudinal beam is provided with a boundary beam side limiting block.
Further, the vehicle body side supporting limiting block comprises a limiting plate, a handle and a screw rod, and the handle and the screw rod are fixed on the limiting plate through a base.
Further, the guide rail with the T-shaped groove is fixed on the bottom plate through a hinge, and the bottom plate is fixed on the second longitudinal beam.
Further, the beam limiting block comprises a base, a clamping plate, a limiting pin and a turnover limiting block, and the turnover limiting block is fixed in the clamping plate through the limiting pin; the base is fixed on a guide rail with a T-shaped groove, and a waist hole is formed in the base.
Further, the clamping device and the pressing device adopt mechanical clamps, and the side beam pressing device adopts pneumatic clamps.
The invention has the following beneficial effects:
(1) The universality is strong, can be applicable to multiple products simultaneously:
the traditional welding tool has strong specificity, the front assembling and the back assembling are respectively assembled and welded by different tools, the occupied production space is large, the cost input of the tools is high, and the operation of production operators is relatively complex. The assembly welding tool is universal in forward assembly and reverse assembly, is simultaneously suitable for assembly and welding of underframe assemblies of A vehicles, B vehicles, C vehicles and D vehicles of straddle type monorail vehicles, can effectively reduce the investment of tool cost, and can effectively simplify the use of the tool.
(2) Accurate positioning but not flexible, and can effectively avoid demoulding difficulty caused by excessive positioning and welding shrinkage:
the traditional welding fixture is mainly used for accurately positioning products and preventing welding deformation, and after assembly and welding are completed, the products are required to be removed for positioning or forced demoulding due to welding strain force. The fixture provided by the invention can not only meet the accurate positioning of products, but also meet the smooth demolding of products after the assembly and welding of the products by adopting the pneumatic fixture, the overturning fixture, the fixture with the rail, the fixture with the screw rod and the like.
Drawings
FIG. 1 is a schematic structural view of a monorail car chassis assembly welding fixture of the present invention, wherein 1-one-dimensional end bottom supports, 2-center wire pulling devices, 3-one-dimensional end stoppers, 4-longitudinal beams, 5-transverse beams, 6-clamping devices, 7-car body side support stoppers, 8-longitudinal beams, 9-transverse beams, 10-T-grooved rails, 11-side beam stoppers, 12-side beam pressing devices, 13-longitudinal beams, 14-transverse beams, 15-side beam side limit blocks, 16-two-dimensional end bottom supports, 17-pressing devices, 18-two-dimensional end stoppers.
Fig. 2 is a schematic view of the structure of the body side supporting stopper of the present invention, wherein 19-stopper plate, 20-handle, 21-lead screw, 22-base.
Fig. 3 is a schematic view of the structure of the guide rail with the T-shaped groove, wherein the guide rail with the T-shaped groove comprises a 23-beam limiting block, a 24-hinge and a 25-bottom plate.
Fig. 4 is a schematic structural view of the beam limiting block of the present invention, wherein the beam limiting block comprises a 26-base, a 27-clamping plate, a 28-limiting pin, a 29-overturning limiting block and a 30-waist hole.
FIG. 5 is a schematic view of a monorail car chassis assembly in an embodiment of the present invention.
FIG. 6 is a schematic illustration of a cab end chassis assembly product in an embodiment of the invention.
FIG. 7 is a schematic view of a cab end chassis assembly positioning clamp in an embodiment of the invention.
FIG. 8 is a schematic illustration of a two-dimensional end chassis assembly product in accordance with an embodiment of the present invention.
FIG. 9 is a schematic illustration of a two-dimensional end-to-end chassis assembly positioning clamp in an embodiment of the present invention.
Fig. 10 is a schematic view of a beam mounting limit in an embodiment of the invention.
FIG. 11 is a schematic illustration of the positioning and clamping of an edge beam in an embodiment of the present invention.
FIG. 12 is a schematic diagram of a reverse assembly of a chassis assembly in accordance with an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in FIG. 1, the assembly welding tool for the monorail car underframe assembly comprises three parts: one-dimensional end assembly welding frame, middle assembly welding frame and two-dimensional end assembly welding frame. The tool main body structure is formed by a cross beam and a longitudinal beam, the upper surface of the longitudinal beam is a machining surface, the leveling is used as a Z-direction reference for tool detection and product assembly during installation, and the center line is pulled in the X direction and the Y direction to be used as X-direction and Y-direction references for tool detection and product installation.
The one-dimensional end part assembly welding frame comprises a one-dimensional end bottom surface supporting frame 1, a longitudinal beam 4, a cross beam 5, a one-dimensional end limiting block 3, a central wire drawing device 2 and a clamping device 6. Wherein the forefront cross beam 5 is fixed on the one-dimensional end bottom surface support frame 1, the one-dimensional end limiting block 3 and the central wire drawing device 2 are fixed on the forefront cross beam 5, and the clamping device 6 adopts a mechanical pressing plate clamp and is arranged on the three cross beams 5.
The middle part assembly welding frame comprises a bottom surface supporting frame, a vehicle body side supporting limiting block 7, a longitudinal beam 8 and a cross beam 9. The vehicle body side supporting limiting block 7 is fixed on the bottom surface supporting frame and is positioned on one side close to the one-dimensional end part assembly welding frame, the side surface structure of the vehicle body side supporting limiting block is shown in fig. 2, the vehicle body side supporting limiting block comprises a limiting plate 19, a handle 20 and a screw rod 21, and the handle 20 and the screw rod 21 are fixed on the limiting plate 19 through a base 22. The longitudinal beam 8 is provided with a guide rail 10 with a T-shaped groove, a limit block 11 for the side beam and a hold-down device 12 for the side beam, and the guide rail 10 with the T-shaped groove is provided with a limit block 23 for the cross beam, as shown in figure 3. The T-channel rail 10 is fastened to a base plate 25 by means of a hinge 24, the base plate 25 being fastened to the longitudinal beam 8. As shown in fig. 4, the beam limiting block 23 comprises a base 26, a clamping plate 27, a limiting pin 28 and a turnover limiting block 29, wherein the turnover limiting block 29 is fixed in the clamping plate 27 through the limiting pin 28, the base 26 is fixed on the guide rail 10 with the T-shaped groove, and a waist hole 30 is further formed in the base 26. The side beam pressing device 12 adopts a pneumatic clamp.
The two-dimensional end part assembly welding frame comprises a two-dimensional end bottom surface supporting frame 16, a longitudinal beam 13, a cross beam 14 and a two-dimensional end limiting block 18, wherein a pressing device 17 is arranged on the cross beam 14, the two-dimensional end limiting block 18 is arranged on the cross beam 14 at the tail end, and the cross beam 14 at the tail end is fixed on the two-dimensional end bottom surface supporting frame 16. The side frame 13 is provided with a side frame side limiter 15.
The tool can be applied to the assembly welding of the underframe of the INNOVIA MONORAIL 300 type straddle MONORAIL car A, B, C and the underframe of the D car selected by the track traffic of the Utility lake (the structure is shown in figure 5), and the positioning of a cab underframe assembly (one-dimensional end underframe assembly of the A car and the B car), an end underframe assembly (two-dimensional end underframe assembly of the A car and the B car and one-dimensional end and two-dimensional end underframe assembly of the C car and the D car), an underframe boundary beam and an underframe cross beam, and the product is fixed and the welding deformation is reduced through a clamping device.
Among the four types of monorail car underframe, the underframe of the A car and the underframe of the B car are symmetrical pieces, the underframe of the C car and the underframe of the D car are symmetrical pieces, and the tool can simultaneously meet the assembly and welding requirements of A, B, C and the underframe assembly of the D car in consideration of limited production field space. The specific use principle and process are as follows:
1. positioning and clamping of one-dimensional end-to-end chassis assemblies (FIG. 6)
Firstly, the vehicle body side supporting limiting block and the one-dimensional end limiting block are withdrawn, the cab end underframe assembly is lifted into the corresponding position of the tool through a travelling crane, then the positioning of the component is realized through the rotating handle 20 and the one-dimensional end limiting block 3, the positioning of the cab end underframe assembly is detected through the center line of the tool, and the clamping of the cab end underframe assembly is realized through the mechanical clamping device 6, as shown in fig. 7.
2. Positioning and clamping of two-dimensional end chassis assemblies (FIG. 8)
Firstly, the vehicle body side supporting limiting block 7 and the two-dimensional end limiting block 18 are withdrawn, the cab end underframe assembly is lifted into the corresponding position of the tool through a travelling crane, then the positioning of the component is realized through the rotating handle 20 and the pushing two-dimensional end limiting block 18, the positioning of the cab end underframe assembly is detected through the center line of the tool, and the clamping of the cab end underframe assembly is realized through the mechanical pressing device 17, as shown in fig. 9.
3. Positioning of cross beams
Z-direction limiting of the cross beam is achieved through the guide rail 10 with the T-shaped groove, X-direction limiting of the cross beam is achieved through the cross beam limiting block 23, and Y-direction limiting of the cross beam is achieved through guaranteeing symmetry of X-direction central lines of the cross beam tool, as shown in fig. 10.
4. Positioning and clamping of side beams
The positioning in the X direction is realized through the symmetry of the boundary beam along the center line in the Y direction of the tool and the boundary beam side limiting blocks 15, the Z-direction limiting of the boundary beam is realized through the longitudinal tool beams, the Y-direction positioning of the boundary beam is realized through the boundary beam limiting blocks 11 and the boundary beams on two sides along the symmetry of the center line in the X direction of the tool, and the clamping of the boundary beam is realized through the pneumatic clamp and the mechanical clamp, as shown in figure 11.
5. Welding of reverse side welds
The T-shaped groove guide rail 10 is turned over, so that the cross beam is prevented from interfering with the tool when the underframe assembly is reversely assembled, and the underframe assembly is reversely assembled and placed through limit of the boundary beam Z direction, as shown in fig. 12.
Claims (5)
1. A monorail car chassis assembly welding tool is characterized by comprising a one-dimensional end part assembly welding frame, a middle part assembly welding frame and a two-dimensional end part assembly welding frame,
the one-dimensional end part assembly welding frame comprises a first bottom surface supporting frame, a first longitudinal beam, a first cross beam, a one-dimensional end limiting block and a central wire pulling device, wherein a clamping device is arranged on the first cross beam; the one-dimensional end limiting block and the central wire pulling device are arranged on a first crossbeam at the forefront end, and the first crossbeam at the forefront end is fixed on the first bottom surface supporting frame;
the middle part assembly welding frame comprises a second bottom surface supporting frame, a second longitudinal beam, a second cross beam and a vehicle body side supporting limiting block, and the vehicle body side supporting limiting block is fixed on the second bottom surface supporting frame and is positioned at one side close to the one-dimensional end part assembly welding frame; the guide rail with the T-shaped groove, the side beam limiting block and the side beam pressing device are arranged on the second longitudinal beam, and the cross beam limiting block is arranged on the guide rail with the T-shaped groove;
the two-dimensional end part assembly welding frame comprises a third bottom surface supporting frame, a third longitudinal beam, a third cross beam and a two-dimensional end limiting block, and a pressing device is arranged on the third cross beam; the two-dimensional end limiting block is arranged on a third cross beam at the tail end, and the third cross beam at the tail end is fixed on a third bottom surface supporting frame; and the third longitudinal beam is provided with a boundary beam side limiting block.
2. The assembly welding tool for the monorail car underframe assembly of claim 1, wherein the car body side supporting limiting block comprises a limiting plate, a handle and a screw rod, and the handle and the screw rod are fixed on the limiting plate through a base.
3. The monorail car chassis assembly welding tool of claim 1, wherein the guide rail with the T-shaped groove is fixed on a bottom plate by a hinge, and the bottom plate is fixed on a second longitudinal beam.
4. The assembly welding tool for the monorail car underframe assembly according to claim 1, wherein the beam limiting block comprises a base, a clamping plate, a limiting pin and a turnover limiting block, and the turnover limiting block is fixed in the clamping plate through the limiting pin; the base is fixed on a guide rail with a T-shaped groove, and a waist hole is formed in the base.
5. The monorail car chassis assembly welding tool of claim 1, wherein the clamping device and the pressing device are mechanical clamps, and the side beam pressing device is a pneumatic clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295778.XA CN107790948B (en) | 2017-12-08 | 2017-12-08 | Assembly welding tool for underframe assembly of monorail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295778.XA CN107790948B (en) | 2017-12-08 | 2017-12-08 | Assembly welding tool for underframe assembly of monorail car |
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| Publication Number | Publication Date |
|---|---|
| CN107790948A CN107790948A (en) | 2018-03-13 |
| CN107790948B true CN107790948B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711295778.XA Active CN107790948B (en) | 2017-12-08 | 2017-12-08 | Assembly welding tool for underframe assembly of monorail car |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108942052B (en) * | 2018-09-04 | 2023-06-20 | 桂林航天工业学院 | Passenger car body framework welding fixture with overturning function |
| CN109719450B (en) * | 2019-03-07 | 2023-08-04 | 安徽江淮专用汽车有限公司 | Barrel overturning mechanism splice welding tool |
| CN110561000B (en) * | 2019-09-11 | 2021-05-18 | 中车长江车辆有限公司 | Walking underframe assembling mould |
| CN110860770B (en) * | 2019-11-29 | 2022-05-10 | 安徽雷尔伟交通装备有限公司 | Vehicle body underframe assembly and welding process thereof |
| CN112077511B (en) * | 2020-09-03 | 2022-08-02 | 中车长春轨道客车股份有限公司 | Assembly welding tool for large part of underframe of railway vehicle |
| CN114932331A (en) * | 2022-05-24 | 2022-08-23 | 无锡恒久安泰智能制造有限公司 | Automatic production line and production method for vehicle chassis |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201371333Y (en) * | 2009-03-23 | 2009-12-30 | 中国北车集团大同电力机车有限责任公司 | Assembling tool for underframe of electrical locomotive |
| CN201500869U (en) * | 2009-08-31 | 2010-06-09 | 中国北车集团大同电力机车有限责任公司 | Assembly welding clamping equipment of locomotive chassis longitudinal beams |
| CN102019528A (en) * | 2010-12-28 | 2011-04-20 | 唐山轨道客车有限责任公司 | Fixture and method for welding car underframe |
| CN202763359U (en) * | 2012-09-20 | 2013-03-06 | 南车南京浦镇车辆有限公司 | Railway coach bottom frame simple installed and welded tire |
| CN206305681U (en) * | 2016-12-21 | 2017-07-07 | 南京雷尔伟新技术有限公司 | Low-floor tramcar drivers' cab underframe group mounted welder |
| CN206305683U (en) * | 2016-12-21 | 2017-07-07 | 南京雷尔伟新技术有限公司 | The total mounted welder in groups of empty iron roof of train |
| CN106736190A (en) * | 2017-02-22 | 2017-05-31 | 厦门伟特思汽车科技有限公司 | A kind of all-loading coach vehicle frame is integrally positioned and clamping tool |
| CN207593133U (en) * | 2017-12-08 | 2018-07-10 | 南京雷尔伟新技术有限公司 | A kind of gyrocar chassis assembly group mounted welder |
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2017
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Address after: 210061 No. 19, Longtai Road, Nanjing hi tech Development Zone, Jiangsu Applicant after: NANJING LEIERWEI NEW TECHNOLOGY Co.,Ltd. Address before: 210061 No. 19, Longtai Road, Nanjing hi tech Development Zone, Jiangsu Applicant before: NANJING RAILWAY NEW TECHNOLOGY CO.,LTD. |
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