CN102059513B - Process for manufacturing integral chassis towing beam for railway passenger vehicle - Google Patents
Process for manufacturing integral chassis towing beam for railway passenger vehicle Download PDFInfo
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- CN102059513B CN102059513B CN2010105560942A CN201010556094A CN102059513B CN 102059513 B CN102059513 B CN 102059513B CN 2010105560942 A CN2010105560942 A CN 2010105560942A CN 201010556094 A CN201010556094 A CN 201010556094A CN 102059513 B CN102059513 B CN 102059513B
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- wing surface
- mainboard
- lower wing
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- lower aerofoil
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Abstract
The invention relates to a process for manufacturing an integral chassis towing beam for a railway passenger vehicle, comprising the following steps: preprocessing a steel plate by shot blasting; cutting and blanking, wherein each small blanked part comprises a mainboard, a first upper wing surface, a second upper wing surface, a first lower wing surface, a second lower wing surface, a third lower wing surface and a fourth lower wing surface, wherein the first upper wing surface and the second upper wing surface are distributed along the upper end of the main board, and the first lower wing surface, the second lower wing surface, the third lower wing surface and the fourth lower wing surface are distributed along the lower end of the main board; leveling the blanked parts; bending the blanked parts in sequence by steps, wherein the upper wing surfaces and the lower wing surfaces are bent towards the outside of the mainboard to be perpendicular to the mainboard; welding complementary plates between the first lower wing surface and the second lower wing surface and between the third lower wing surface and the fourth lower wing surface, and welding the joint of the first upper wing surface and the second upper wing surface and the joint of the third lower wing surface and the fourth lower wing surface; and performing ultrasonic flaw detection on welding joints, and welding the hollow welded joints. The welded joint is shortened, thus the welding deformation is reduced and less special welding tools and clamping tools are used; the whole part is integrally blanked by adopting a numerically controlled cuter, thus the pitch of holes is guaranteed; and the working efficiency is improved to a great extent, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of passenger train monoblock type underframe draw beam manufacturing process, belong to passenger train Undercarriage structure technical field.
Background technology
Draw beam is the vitals in the underframe of coach and is main bearing part vertical, transverse load that shape is complicated.Railway way-train underframe draw beam is to use material to be the 30a channel-section steel 0 of the Q235B type that is spliced.
In the existing draw beam production technology, be spliced to form draw beam by the channel-section steel after two processing, wherein first channel-section steel prescinds a part of lower aerofoil, and second channel-section steel keeps a flank face, and nose cut is acutangulated, and the step of concrete technology is following:
The first step, channel-section steel line cutting;
The lower aerofoil of second step, roasting first channel-section steel of fire is also broken into two with one's hands;
The 3rd step, first channel-section steel are positioned on the assembling tyre;
The 4th step, the front end of second channel-section steel is inserted the opening part of the first channel-section steel lower aerofoil and welded seam;
The 5th step, adjustment flatness;
The 6th goes on foot, holes at first channel-section steel, forms necessary installing hole.
This technology needs channel-section steel line cutting, and linearity, roughness are difficult to guarantee; And because splicing welding joint is longer, welding deformation takes place easily when assembly welding, so when assembly welding, need use special tooling, jig chucking, postwelding also need carry out adjusting; The hole of 24 φ 22 of follower seat is to get out respectively through radial drilling machine before and after installing, and the pitch-row size has certain deviation.Adopt this method to make the draw beam inefficiency.
Summary of the invention
Technical problem to be solved by this invention is; Overcome that the existing package assembly sleeper beam assembly precision that looses is low, the too high shortcoming of pillow back corrugated floor stress; A kind of passenger train monoblock type underframe draw beam manufacturing process is provided; Its machining accuracy is high, changes the bang path of coupler force, solves the too high problem of pillow back corrugated floor stress.
In order to solve above technical problem, passenger train monoblock type underframe draw beam manufacturing process provided by the invention specifically comprises the steps:
The first step, the preliminary treatment of steel plate shot-peening;
Second step, cutting stock; Following materials and parts after the cutting comprise mainboard, and the sleeper beam side of said mainboard equates that with the sleeper beam height end carriage side of mainboard equates with the draw beam height; Mainboard upper end edge sleeper beam side to end carriage side is followed successively by first, second top airfoil; Mainboard lower end edge sleeper beam side is followed successively by first, second, third, fourth lower aerofoil to the end carriage side, and the adjacent airfoils place has notch, and the width of second top airfoil equates with the 4th lower aerofoil width;
The 3rd step, materials and parts smoothing down;
The 4th step, substep be the following materials and parts of bending successively, and with upper and lower aerofoil lateral buckling and make it vertical with mainboard to mainboard outside, the end carriage side of mainboard line inner along second top airfoil and the 4th lower aerofoil the inner outwards bends;
Weld between the 5th step, first, second lower aerofoil and between second, third lower aerofoil and mend plate, weld the joint and the 3rd of first, second top airfoil, the joint of the 4th lower aerofoil;
The 6th step, ultrasonic examination weld seam, butt welded seam not crucial point carries out repair welding.
The present invention is with steel plate cutting back bending forming, and in the joint welding, variable cross-section place (between first, second lower aerofoil and between second, third lower aerofoil) mended plate through (arc) and carried out welding transition, reduces the stress at variable cross-section place.The present invention is greatly improved through process innovation draw beam quality and production efficiency.The present invention has reduced fusion length, has therefore reduced welding deformation, has saved special tooling, jig; Whole part adopts the whole blanking of numerical control cutting machine, and all pitch-row sizes all are guaranteed; Improve operating efficiency to a great extent, and reduced cost.Process innovation has been widely used in 25T type car (Qinghai-Tibet car, tunnel inspection trolley, capital eight cars etc.) at present, has obtained good effect.
Further, in the passenger train monoblock type underframe draw beam manufacturing process of the present invention, the said notch place of materials and parts down has perforate.Effectively avoid bending part to crack.
Further, in the passenger train monoblock type underframe draw beam manufacturing process of the present invention, it is characterized in that: in said second step, carry out cutting stock, cut out follower seat installing hole and airduct hole on the mainboard through laser cutting machine or water cutting machine.。
Further, in the passenger train monoblock type underframe draw beam manufacturing process of the present invention, in said the 3rd step, following materials and parts are smoothed through running roller smoothing equipment.
Further again, in the passenger train monoblock type underframe draw beam manufacturing process of the present invention, it is characterized in that: after the said first step is accomplished, spraying steel plate zinc silicate shop primer.
It is thus clear that, ingenious conception of the present invention, enforcement convenience, the draw beam reliable in quality of being produced, and production efficiency is high.The present invention will be widely used at the draw beam production field of track traffic, has good market prospects.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is a draw beam expanded view of the present invention.
Fig. 2 is the A district enlarged drawing of this Fig. 1.
Fig. 3 is a draw beam structural representation of the present invention.
The specific embodiment
Shown in Fig. 1-3, be the draw beam expanded view and the structural representation of present embodiment.
The passenger train monoblock type underframe draw beam manufacturing process of present embodiment specifically comprises the steps:
The first step, the preliminary treatment of steel plate shot-peening are to spraying steel plate zinc silicate shop primer;
Second step, cutting stock---through laser cutting machine (or water cutting machine) cutting stock; Following materials and parts after the cutting comprise mainboard 1; The sleeper beam side 11 of mainboard 1 equates with the sleeper beam height, and the end carriage side 12 of mainboard 1 equates with the end carriage height, and mainboard 1 upper end edge sleeper beam side 11 to end carriage side 12 is followed successively by first top airfoil 21, second top airfoil 22; Mainboard 1 lower end edge sleeper beam side 11 to end carriage side 12 is followed successively by first lower aerofoil 31, second lower aerofoil 32, the 3rd lower aerofoil 33, the 4th lower aerofoil 34; The adjacent airfoils place has notch 4, and the width that notch 4 places of following materials and parts have perforate 5, the second top airfoils 22 equates with the 4th lower aerofoil 34 width; In this step, also cut out follower seat installing hole 6 and airduct hole 7 on the mainboard 1;
The 3rd step, materials and parts smoothing down---through running roller smoothing equipment following materials and parts are smoothed;
The 4th step, substep be the following materials and parts of bending successively, and with upper and lower aerofoil lateral buckling and make it vertical with mainboard 1 to mainboard 1 outside, the end carriage side 11 of mainboard 1 bends about 17 ° along the lines that second top airfoil 21 is inner and the 4th lower aerofoil 34 is inner are outside;
The 5th step, first, second lower aerofoil 31, between 32 and second, third lower aerofoil 32, plate 61,62 is mended in welding between 33, welds the joint and the 3rd of first, second top airfoil 21,22, the joint of the 4th lower aerofoil 33,34;
The 6th step, ultrasonic examination weld seam, butt welded seam not crucial point carries out repair welding.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (6)
1. passenger train monoblock type underframe draw beam manufacturing process specifically comprises the steps:
The first step, the preliminary treatment of steel plate shot-peening;
Second step, cutting stock; Following materials and parts after the cutting comprise mainboard, and the sleeper beam side of said mainboard equates that with the sleeper beam height end carriage side of mainboard equates with the end carriage height; Mainboard upper end edge sleeper beam side to end carriage side is followed successively by first, second top airfoil; Mainboard lower end edge sleeper beam side is followed successively by first, second, third, fourth lower aerofoil to the end carriage side, and the adjacent airfoils place has notch, and the width of second top airfoil equates with the 4th lower aerofoil width;
The 3rd step, materials and parts smoothing down;
The 4th step, substep be the following materials and parts of bending successively, and with upper and lower aerofoil lateral buckling and make it vertical with mainboard to mainboard outside, the end carriage side of mainboard line inner along second top airfoil and the 4th lower aerofoil the inner outwards bends;
Weld between the 5th step, first, second lower aerofoil and between second, third lower aerofoil and mend plate, weld the joint and the 3rd of first, second top airfoil, the joint of the 4th lower aerofoil;
The 6th step, ultrasonic examination weld seam, butt welded seam not crucial point carries out repair welding.
2. passenger train monoblock type underframe draw beam manufacturing process according to claim 1 is characterized in that: the said notch place of materials and parts down has perforate.
3. passenger train monoblock type underframe draw beam manufacturing process according to claim 1 is characterized in that: the longitudinal cross-section of mending plate is curved.
4. passenger train monoblock type underframe draw beam manufacturing process according to claim 1 is characterized in that: in said second step, carry out cutting stock through laser cutting machine or water cutting machine, cut out follower seat installing hole and airduct hole on the mainboard.
5. passenger train monoblock type underframe draw beam manufacturing process according to claim 1 is characterized in that: in said the 3rd step, through running roller smoothing equipment following materials and parts are smoothed.
6. passenger train monoblock type underframe draw beam manufacturing process according to claim 1 is characterized in that: after the said first step is accomplished, to spraying steel plate zinc silicate shop primer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560942A CN102059513B (en) | 2010-11-23 | 2010-11-23 | Process for manufacturing integral chassis towing beam for railway passenger vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105560942A CN102059513B (en) | 2010-11-23 | 2010-11-23 | Process for manufacturing integral chassis towing beam for railway passenger vehicle |
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| Publication Number | Publication Date |
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| CN102059513A CN102059513A (en) | 2011-05-18 |
| CN102059513B true CN102059513B (en) | 2012-04-11 |
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| CN2010105560942A Active CN102059513B (en) | 2010-11-23 | 2010-11-23 | Process for manufacturing integral chassis towing beam for railway passenger vehicle |
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|---|---|---|---|---|
| CN103521919B (en) * | 2013-10-15 | 2016-06-22 | 江苏大学 | A kind of method realizing underwater laser welding and laser peening and combination unit |
| CN104384860A (en) * | 2014-11-10 | 2015-03-04 | 安徽威萨重工机械有限公司 | Production process for end beam of crane |
| CN104400351A (en) * | 2014-11-10 | 2015-03-11 | 安徽威萨重工机械有限公司 | Production technology of box girder of crane |
| CN106514028B (en) * | 2016-12-15 | 2019-02-12 | 中车北京二七车辆有限公司 | A kind of welding method of Bridge Erector five-axle steering frame welded frame side frame |
| CN111185721B (en) * | 2018-11-15 | 2021-11-12 | 核工业西南物理研究院 | Manufacturing method for manufacturing multi-runner straight plate by single-weld welding |
| CN110355528B (en) * | 2019-06-25 | 2021-04-06 | 江门市蓬江区新荷不锈钢制品有限公司 | Forming method of integrated urinal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991017328A1 (en) * | 1990-05-03 | 1991-11-14 | Ram Navon | Structural beam |
| CN1207353A (en) * | 1997-08-02 | 1999-02-10 | 戴姆勒－奔驰公司 | Autotruck carriage, pref. U-structural steel beam, esp. main underbeam, and mfg. method thereof |
| CN1644265A (en) * | 2005-01-13 | 2005-07-27 | 山东寿光万龙实业有限公司 | Process for manufacturing beams of vehicle with varied sections |
| CN101306700A (en) * | 2007-05-17 | 2008-11-19 | 中国国际海运集装箱(集团)股份有限公司 | Manufacture method of bottom side beam for semi-trailer and bottom side beam made by the method |
| CN101850496A (en) * | 2010-05-25 | 2010-10-06 | 江苏友邦精工实业有限公司 | Manufacturing process of automotive chassis longitudinal beam |
-
2010
- 2010-11-23 CN CN2010105560942A patent/CN102059513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991017328A1 (en) * | 1990-05-03 | 1991-11-14 | Ram Navon | Structural beam |
| CN1207353A (en) * | 1997-08-02 | 1999-02-10 | 戴姆勒－奔驰公司 | Autotruck carriage, pref. U-structural steel beam, esp. main underbeam, and mfg. method thereof |
| CN1644265A (en) * | 2005-01-13 | 2005-07-27 | 山东寿光万龙实业有限公司 | Process for manufacturing beams of vehicle with varied sections |
| CN101306700A (en) * | 2007-05-17 | 2008-11-19 | 中国国际海运集装箱(集团)股份有限公司 | Manufacture method of bottom side beam for semi-trailer and bottom side beam made by the method |
| CN101850496A (en) * | 2010-05-25 | 2010-10-06 | 江苏友邦精工实业有限公司 | Manufacturing process of automotive chassis longitudinal beam |
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| CN102059513A (en) | 2011-05-18 |
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Address after: 210031 Nanjing, Pu Pu North Road, No. 68, Jiangsu Patentee after: CRRC NANJING PUZHEN CO., LTD. Address before: 210031 Nanjing, Pu Pu North Road, No. 68, Jiangsu Patentee before: CSR NANJING PUZHEN Vehicles Co., Ltd. |