CN104858619A - Motor train unit aluminum alloy locomotive modular manufacturing method - Google Patents

Motor train unit aluminum alloy locomotive modular manufacturing method Download PDF

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Publication number
CN104858619A
CN104858619A CN201510238194.3A CN201510238194A CN104858619A CN 104858619 A CN104858619 A CN 104858619A CN 201510238194 A CN201510238194 A CN 201510238194A CN 104858619 A CN104858619 A CN 104858619A
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China
Prior art keywords
frock
side wall
synthesis
assembly welding
positioning fixture
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Pending
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CN201510238194.3A
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Chinese (zh)
Inventor
耿明
田宇
曲双
陆培德
王�锋
何广忠
刘长青
邵有发
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CRRC Changchun Railway Vehicles Co Ltd
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Changchun Railway Vehicles Co Ltd
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Application filed by Changchun Railway Vehicles Co Ltd filed Critical Changchun Railway Vehicles Co Ltd
Priority to CN201510238194.3A priority Critical patent/CN104858619A/en
Publication of CN104858619A publication Critical patent/CN104858619A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/01Aircraft parts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

A motor train unit aluminum alloy locomotive modular manufacturing method is characterized by including the following steps that firstly, a whole locomotive is subjected into eight procedures including front window frame installing and assembling, train roof combining, side wall framework combining, side wall skin installing and assembling, front wall installing, assembling and machining, locomotive combining and screw barrel installing; secondly, the main line procedure from front window frame installing and assembling to train roof combining, the main line procedure from side wall framework combining to side wall skin installing and assembling and the main line procedure from front wall installing and assembling to front wall machining are carried out at the same time, and locomotive combining and screw barrel installing are carried out together after the three main line procedures are completed. Compared with the prior art, the method has the advantages that modularization of locomotive manufacturing process procedures is achieved, and the number of the procedures is reduced; the original mode that the procedures are carried out in sequence is optimized into the mode that the train roof combining procedure and the side wall combining procedure are carried out at the same time, so that the product production cycle is shortened, tool investment is reduced, and production cost is reduced; modularization of a locomotive manufacturing process device is achieved, and quick switching can be achieved between different locomotives, so that the product remodeling cycle is shortened, tool investment is reduced, and production cost is reduced.

Description

EMUs aluminium alloy head module manufacture method
Technical field
The present invention relates to a kind of manufacturing process of Motor train unit locomotive, especially relate to a kind of aluminium alloy head module manufacturing technology.
Background technology
High speed motor car group aluminum alloy headstock is three dimensional streamline structure, and existing manufacturing technology mainly takes side wall curtain heading tape → side wall skeleton → side wall covering → headstock to synthesize the serial process of main line, and manufacturing process is loaded down with trivial details, and the production cycle is longer.9 procedures altogether, the whole production cycle accounts for 1/3rd of the car load cycle; Frock and corollary equipment demand are comparatively large, and manufacturing cost is higher; Frock poor universality between various headstock, product cycle of remodeling is longer.
Summary of the invention
The object of the invention is the modularization realizing high speed motor car group aluminum alloy headstock manufacturing process flow and technological equipment, by manufacturing process's content, quantity and alter concurrency relation and carry out Reasonable adjustment, optimization technological process, shorten the production cycle.Meanwhile, realize the quick switching of frock between various aluminium alloy headstock, reduce frock manufacturing cost, shorten and remodel the cycle.
For achieving the above object, the invention provides a kind of EMUs aluminium alloy head module manufacture method, it is characterized in that comprising the following steps:
The first step: whole headstock is divided into 8 procedures, namely, window frame assembly welding, roof synthesis, side wall skeleton synthesis, side wall covering assembly welding, front wall assembly welding and processing, headstock synthesis and swivel nut are installed;
Second step: front window frame assembly welding → roof synthesis, side wall skeleton synthesis → side wall covering assembly welding, front wall assembly welding → front wall processing three main clues operation are walked abreast, together carries out headstock synthesis after completing and swivel nut is installed.
Described front window frame assembly welding first outer shroud camber beam is put into one by one front window frame assembly welding frock to be grouping, then more inner crossbeam is put into frock to be grouping, treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding; Front window frame assembly welding frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded; Positioning fixture is with bolts, and outside is located, interior side compression.
Before assembly welding first completes by described roof synthesis window frame utilize before window frame handling apparatus fix, fall in roof synthesis frock and be grouping, then again carline and covering are successively fallen in frock and be grouping, treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding; Roof synthesis frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded, and adopt cross V-type groove structure with the interface of front window handling apparatus, alignment pin is fixed; Positioning fixture is with bolts, and bottom is located, and top compresses, and is configured according to different vehicle head structure and changes.
Described side wall skeleton synthesis be first side wall curtain heading tape is fallen in side wall skeleton synthesis frock be grouping, put solid, and utilize positioning fixture to be fixed, then again all the other skeletons are fallen in frock be grouping, put solid, and utilize positioning fixture to be fixed, treat that all materials and parts groups are to completing, and carry out integral solder; Side wall skeleton synthesis frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded; Positioning fixture is with bolts, and the positioning fixture of horizontal materials and parts is all location, bottom, and top compresses, and the positioning fixture of longitudinal materials and parts is all left positioner, and top compresses.
Described side wall covering assembly welding is that group is solid to, point one by one for the side wall skeleton that assembly welding completed and side wall skin panel, then overallly freely welds.
Described front wall assembly welding and processing be first by impact beam, dull and stereotyped successively put into front wall assembly welding frock and be grouping, and utilize positioning fixture to be fixed, then together solid, weld, to be welded complete after carry out overall processing; Front wall assembly welding frock is made up of main body frame, dull and stereotyped pressure arm, impact beam pressure arm, and main body frame adopts and is welded; Dull and stereotyped pressure arm and impact beam pressure arm with bolts, bottom is located, and top compresses, and impact beam pressure arm is configured according to different vehicle head structure and changes.
Described headstock synthesis first ring frame vertical beam, side wall, front wall, roof is successively put off to be grouping to headstock synthesis frock, and utilize frock clamp to be fixed, then again ring frame crossbeam, buttress brace and covering are grouping one by one, put admittedly, treat that all materials and parts groups are to completing, and carry out integral solder; Headstock synthesis frock is made up of main body frame, profile clamp, front wall support and roof handling apparatus, and frock each several part is mainly with bolts; Profile clamp, front wall support and arrange slideway structure, and are configured according to different vehicle head structure and change; The interface of roof handling apparatus and main body frame adopts cross V-type groove to locate, and alignment pin is fixed.
the advantage that the present invention has relative to background technology and progress:
1, realize the modularization of headstock manufacturing process flow, simplify operation quantity, and operation serial is in the past optimized for roof synthesis/side wall synthesis procedure walks abreast, shorten life cycle of the product, reduce frock and drop into, reduce production cost.
2, realize the modularization of headstock technological equipment for making, can between different headstock rapid translating, shorten product and remodel the cycle, decrease frock drop into, reduce production cost.
Accompanying drawing explanation
Fig. 1 head module manufacturing process flow;
Window frame assembly welding and corresponding frock schematic diagram before Fig. 2;
The synthesis of Fig. 3 roof and corresponding frock schematic diagram;
Fig. 4 side wall skeleton integration synthesis and corresponding frock schematic diagram;
Fig. 5 side wall covering assembly welding schematic diagram;
Fig. 6 front wall assembly welding and corresponding frock schematic diagram;
The synthesis of Fig. 7 headstock and corresponding frock schematic diagram.
Detailed description of the invention
Fig. 1: front window frame assembly welding → roof synthesis, side wall skeleton synthesis → side wall covering assembly welding, front wall assembly welding → front wall processing three main clues operation are walked abreast, together carries out headstock synthesis after completing and swivel nut is installed.
Fig. 2: main body frame 3, the positioning fixture 4 of outer shroud camber beam 1, inner crossbeam 2, front window frame assembly welding frock.During front window frame assembly welding, first outer shroud camber beam is put into one by one front window frame assembly welding frock and be grouping, then more inner crossbeam is put into frock and be grouping.Treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding.Front window frame assembly welding frock is made up of main body frame and positioning fixture.Main body frame adopts and is welded, and positioning fixture is with bolts, is convenient to change.All positioning fixtures are all location, outside, and interior side compression, to ensure overall dimensions.
Fig. 3: the main body frame 8 of front window frame 5, roof stick carline 6, covering 7, roof synthesis frock, positioning fixture 9, front window frame handling apparatus 10, cross V-type groove location 11.During roof synthesis, before first assembly welding being completed window frame utilize before window frame handling apparatus fix, fall in roof synthesis frock and be grouping.Then again the roof stick carline of former headstock synthesis procedure and covering are moved to this operation, fall in frock one by one and be grouping.Treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding.Wherein, roof synthesis frock is made up of main body frame and positioning fixture.Main body frame adopts and is welded, and adopt cross V-type groove to locate with the interface of front window frame handling apparatus, alignment pin is fixed, and is convenient to Fast Installation and dismounting; Positioning fixture is with bolts, is convenient to change.All positioning fixtures are all location, bottom, and top compresses, and to ensure overall dimensions, and require to be configured it, so that frock can switch fast between different automobile types according to different vehicle head structure.
Fig. 4: main body frame 14, longitudinal register fixture 15, the located lateral fixture 16 of all the other skeletons 13 of side wall curtain heading tape 12, side wall, side wall skeleton integration synthesis frock.Improve the independent synthesis technique of side wall curtain heading tape in the past, original side wall curtain heading tape and skeleton are carried out integration synthesis.During side wall skeleton synthesis, first side wall curtain heading tape is fallen in side wall skeleton synthesis frock be grouping, put solid, then again all the other skeletons are fallen in frock be grouping, put solid.Treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, carry out integral solder.Wherein, side wall skeleton synthesis frock is made up of main body frame and positioning fixture.Main body frame adopts and is welded; Positioning fixture is with bolts, is convenient to change.Wherein, longitudinal register fixture is all location, bottom, and top compresses, and located lateral fixture is all left positioner, and top compresses, to ensure overall dimensions.
Fig. 5: side wall skeleton 17, side wall covering 18.Side wall covering assembly welding is that group is solid to, point one by one for the side wall skeleton that assembly welding completed and side wall skin panel, then carries out integral solder.Whole welding process, without the need to exclusive frock, common support can realize.
Fig. 6: flat board 19, impact beam 20, the main body frame 21 of front wall assembly welding frock, dull and stereotyped pressure arm 22, impact beam pressure arm 23.During front wall assembly welding, first impact beam, dull and stereotyped priority are put into front wall assembly welding frock and are grouping, and utilize positioning fixture to be fixed, then together solid, welding.Wherein, front wall assembly welding frock is made up of main body frame, dull and stereotyped pressure arm, impact beam pressure arm, and main body frame adopts and is welded; Flat board/impact beam pressure arm is with bolts, is convenient to change.All pressure arms are all location, bottom, and top compresses, to ensure overall dimensions.In addition, impact beam pressure arm requires to be configured it, so that frock can switch fast between different automobile types according to different vehicle head structure.
Fig. 7: ring frame vertical beam 23, side wall 24, front wall 25, roof 26, ring frame crossbeam 27, buttress brace/covering 28, headstock synthesis frock (main body frame 29, profile clamp 30, front wall support 31, roof handling apparatus 32, cross V-type groove location 33).During headstock synthesis, first ring frame vertical beam, side wall, front wall are put off one by one and be grouping to headstock synthesis frock, and utilize frock clamp to be fixed.Utilize roof handling apparatus to fix the roof that assembly welding completes again, fall in frock and be grouping.Then again ring frame crossbeam, buttress brace/covering are grouping one by one, put admittedly.Until all materials and parts groups to after completing, carry out integral solder.Wherein, headstock synthesis frock is made up of main body frame, profile clamp, front wall support and roof handling apparatus.Frock each several part is mainly with bolts, is convenient to change.In addition, profile clamp, front wall support and take to arrange slideway structure, to be applicable to different headstock length, and require to be configured it, so that frock can switch fast between different automobile types according to different vehicle head structure.The interface of roof handling apparatus and front window frame handling apparatus, main body frame all adopts cross V-type groove to locate, and alignment pin is fixed, and is convenient to Fast Installation and dismounting.

Claims (7)

1. an EMUs aluminium alloy head module manufacture method, is characterized in that comprising the following steps:
The first step: whole headstock is divided into 8 procedures, namely, window frame assembly welding, roof synthesis, side wall skeleton synthesis, side wall covering assembly welding, front wall assembly welding and processing, headstock synthesis and swivel nut are installed;
Second step: front window frame assembly welding → roof synthesis, side wall skeleton synthesis → side wall covering assembly welding, front wall assembly welding → front wall processing three main clues operation are walked abreast, together carries out headstock synthesis after completing and swivel nut is installed.
2. EMUs aluminium alloy head module manufacture method according to claim 1, it is characterized in that: described front window frame assembly welding first outer shroud camber beam is put into one by one front window frame assembly welding frock to be grouping, then more inner crossbeam is put into frock to be grouping, treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding; Front window frame assembly welding frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded; Positioning fixture is with bolts, and outside is located, interior side compression.
3. EMUs aluminium alloy head module manufacture method according to claim 1, it is characterized in that: before assembly welding first completes by described roof synthesis window frame utilize before window frame handling apparatus fix, fall in roof synthesis frock and be grouping, then again carline and covering are successively fallen in frock and be grouping, treat that all materials and parts groups are to completing, and after utilizing positioning fixture to be fixed, more together solid, welding; Roof synthesis frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded, and adopt cross V-type groove structure with the interface of front window handling apparatus, alignment pin is fixed; Positioning fixture is with bolts, and bottom is located, and top compresses, and is configured according to different vehicle head structure and changes.
4. EMUs aluminium alloy head module manufacture method according to claim 1, it is characterized in that: described side wall skeleton synthesis be first side wall curtain heading tape is fallen in side wall skeleton synthesis frock be grouping, put solid, and utilize positioning fixture to be fixed, then again all the other skeletons are fallen in frock be grouping, put solid, and utilize positioning fixture to be fixed, treat that all materials and parts groups are to completing, and carry out integral solder; Side wall skeleton synthesis frock is made up of main body frame and positioning fixture, and main body frame adopts and is welded; Positioning fixture is with bolts, and the positioning fixture of horizontal materials and parts is all location, bottom, and top compresses, and the positioning fixture of longitudinal materials and parts is all left positioner, and top compresses.
5. EMUs aluminium alloy head module manufacture method according to claim 1, is characterized in that: described side wall covering assembly welding is that group is solid to, point one by one for the side wall skeleton that assembly welding completed and side wall skin panel, then overallly freely welds.
6. EMUs aluminium alloy head module manufacture method according to claim 1, it is characterized in that: described front wall assembly welding and processing first impact beam, dull and stereotyped priority are put into front wall assembly welding frock and be grouping, and utilize positioning fixture to be fixed, then together solid, welding, to be welded complete after carry out overall processing; Front wall assembly welding frock is made up of main body frame, dull and stereotyped pressure arm, impact beam pressure arm, and main body frame adopts and is welded; Dull and stereotyped pressure arm and impact beam pressure arm with bolts, bottom is located, and top compresses, and impact beam pressure arm is configured according to different vehicle head structure and changes.
7. EMUs aluminium alloy head module manufacture method according to claim 1, it is characterized in that: described headstock synthesis first ring frame vertical beam, side wall, front wall, roof is successively put off to be grouping to headstock synthesis frock, and utilize frock clamp to be fixed, then again ring frame crossbeam, buttress brace and covering are grouping one by one, put admittedly, treat that all materials and parts groups are to completing, and carry out integral solder; Headstock synthesis frock is made up of main body frame, profile clamp, front wall support and roof handling apparatus, and frock each several part is mainly with bolts; Profile clamp, front wall support and arrange slideway structure, and are configured according to different vehicle head structure and change; The interface of roof handling apparatus and main body frame adopts cross V-type groove to locate, and alignment pin is fixed.
CN201510238194.3A 2015-05-12 2015-05-12 Motor train unit aluminum alloy locomotive modular manufacturing method Pending CN104858619A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108406640A (en) * 2018-04-25 2018-08-17 嵊州市恒中机器有限公司 New-energy automobile headstock exterior trim magnet adsorption cured type installation method and mounting tool
CN108891506A (en) * 2018-04-25 2018-11-27 嵊州市恒中机器有限公司 Electric car headstock exterior trim clamps cured type installation method and mounting tool
CN109050552A (en) * 2018-09-26 2018-12-21 重庆中车长客轨道车辆有限公司 A kind of railcar and its headstock
CN109483128A (en) * 2018-12-18 2019-03-19 中车长春轨道客车股份有限公司 Bullet train head vehicle car body pairing device and its group are to method
CN109514155A (en) * 2018-12-18 2019-03-26 中车长春轨道客车股份有限公司 Bullet train head vehicle roof pairing device and its group are to method
CN111121704A (en) * 2018-11-01 2020-05-08 中车唐山机车车辆有限公司 Detection device
CN112191708A (en) * 2020-09-24 2021-01-08 中车长春轨道客车股份有限公司 Shaping, correcting and manufacturing method for aluminum alloy head skin of urban railway vehicle
CN115430941A (en) * 2022-09-27 2022-12-06 南京雷尔伟新技术股份有限公司 Preparation method of superplastic forming aluminum skin cab

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0699808A (en) * 1992-09-17 1994-04-12 Hitachi Ltd Manufacture of frame for streamline vehicle
DE10144381A1 (en) * 2001-09-10 2003-04-10 Siemens Ag Locomotive manufacturing method has part of locomotive housing provided with interior fittings before combining with further locomotive housing part
CN103264266A (en) * 2013-06-04 2013-08-28 南京雷尔伟新技术有限公司 Vehicle body end wall assembling and welding process
CN104384740A (en) * 2014-11-17 2015-03-04 长春轨道客车股份有限公司 Assembly welding process method for aluminum structure ceiling of driver cab of motor train unit
CN104475997A (en) * 2014-11-17 2015-04-01 长春轨道客车股份有限公司 Modular manufacturing method for aluminum structure of third-dimensional curved surface cab of motor train unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0699808A (en) * 1992-09-17 1994-04-12 Hitachi Ltd Manufacture of frame for streamline vehicle
DE10144381A1 (en) * 2001-09-10 2003-04-10 Siemens Ag Locomotive manufacturing method has part of locomotive housing provided with interior fittings before combining with further locomotive housing part
CN103264266A (en) * 2013-06-04 2013-08-28 南京雷尔伟新技术有限公司 Vehicle body end wall assembling and welding process
CN104384740A (en) * 2014-11-17 2015-03-04 长春轨道客车股份有限公司 Assembly welding process method for aluminum structure ceiling of driver cab of motor train unit
CN104475997A (en) * 2014-11-17 2015-04-01 长春轨道客车股份有限公司 Modular manufacturing method for aluminum structure of third-dimensional curved surface cab of motor train unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
于红: "CRH380BL型高速动车组司机室模块化组焊工艺", 《金属加工》 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108406640A (en) * 2018-04-25 2018-08-17 嵊州市恒中机器有限公司 New-energy automobile headstock exterior trim magnet adsorption cured type installation method and mounting tool
CN108891506A (en) * 2018-04-25 2018-11-27 嵊州市恒中机器有限公司 Electric car headstock exterior trim clamps cured type installation method and mounting tool
CN108891506B (en) * 2018-04-25 2019-08-27 嵊州市恒中机器有限公司 Electric car headstock exterior trim clamps cured type installation method and mounting tool
CN109050552A (en) * 2018-09-26 2018-12-21 重庆中车长客轨道车辆有限公司 A kind of railcar and its headstock
CN111121704A (en) * 2018-11-01 2020-05-08 中车唐山机车车辆有限公司 Detection device
CN109483128A (en) * 2018-12-18 2019-03-19 中车长春轨道客车股份有限公司 Bullet train head vehicle car body pairing device and its group are to method
CN109514155A (en) * 2018-12-18 2019-03-26 中车长春轨道客车股份有限公司 Bullet train head vehicle roof pairing device and its group are to method
CN109514155B (en) * 2018-12-18 2019-11-08 中车长春轨道客车股份有限公司 Bullet train head vehicle roof pairing device and its group are to method
CN112191708A (en) * 2020-09-24 2021-01-08 中车长春轨道客车股份有限公司 Shaping, correcting and manufacturing method for aluminum alloy head skin of urban railway vehicle
CN115430941A (en) * 2022-09-27 2022-12-06 南京雷尔伟新技术股份有限公司 Preparation method of superplastic forming aluminum skin cab
CN115430941B (en) * 2022-09-27 2024-02-20 南京雷尔伟新技术股份有限公司 Preparation method of superplastic forming aluminum skin cab

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