CN102601220B - Machining process for bend flange channel girder fuel tank bracket - Google Patents
Machining process for bend flange channel girder fuel tank bracket Download PDFInfo
- Publication number
- CN102601220B CN102601220B CN2012100860545A CN201210086054A CN102601220B CN 102601220 B CN102601220 B CN 102601220B CN 2012100860545 A CN2012100860545 A CN 2012100860545A CN 201210086054 A CN201210086054 A CN 201210086054A CN 102601220 B CN102601220 B CN 102601220B
- Authority
- CN
- China
- Prior art keywords
- bent angle
- bend
- compacting
- tank support
- flange
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Disclosed is a machining process for a bend flange channel girder fuel tank bracket. The technical scheme includes that the machining process for the bend flange channel girder fuel tank bracket adopts a novel process method of sequence forming and multiple bending, a section channel and a bend are respectively formed in a pressing process, operating difficulty in multiple stretching in one-step pressing is reduced for a machining operator, complicated simultaneous forming of the metal section channel and the bend is changed into the pressing process of respectively forming the section channel and the bend, and cracking or ultra-thinness of bend positions of the bend flange channel girder fuel tank bracket in the pressing process is successfully avoided.
Description
Technical field
The processing technology that the present invention is a kind of bent angle flange trough girder tank support belongs to the machine-building stamping technology---metal plate material plastic forming technology field.
Background technology
This tank support project that to be People group cooperate with German Man, version is bent angle (90 °), flange flange, rectangle and trapezium channel section, is called for short bent angle flange trough girder tank support (see figure 1).This tank support sheet material is Q420B, thickness is 5mm (general>4mm belongs to slab), design ingenious, load capacity is large, loading is stable, easy for installation firmly, but its corner moulding difficulty is difficult for greatly compacting, although adopted multiple drawing method in development process, ultra-thin or cracking phenomena has still appearred in the flange flange of corner.Its conventional cold stamping method for making has two kinds: 1: dull and stereotyped straight forming; 2: first dull and stereotyped bent angle, secondary is compressing.
The dull and stereotyped straight forming method of method one (see figure 2):
(1) blanking---plate blank profile;
(2) be shaped---the moulding simultaneously of bent angle and cross section
(3) follow-up punching.
Moulding difficulty in the method corner is large, corner stretching, flexural deformation tangential easy unstability of material after starting, form gauffer, stoped the Radial Flow of material, and at the easy cracking in the junction of bent angle and straight flange or ultra-thin, it is large that it improves difficulty, precautionary measures are numerous and diverse, referring to patent 200810047161.0 " control method of anti-cracking during vehicle oil-tank bracket tension ".
Method two is dull and stereotyped bent angle first, secondary bent angle method of forming (see figure 3):
(1) blanking---plate blank profile;
(2) pre-bent angle---only plate blank is curved to 90 ° or approach the bent angle of product;
(3) being shaped---moulding bent angle blank is drawn, the crooked product cross section shape of having suppressed again;
(4) follow-up punching.
Although the method has been carried out pre-bent angle by plate blank, the easy unstability of tangential material, formation gauffer when molding procedure still can't solve the moulding of cross section, corner, the difficult problem of corner cracking or attenuation.
With the immediate prior art of the present invention be that publication number is: 101357383, the patent No. is: the control method of anti-cracking during 200810047161.0 vehicle oil-tank bracket tension, the dull and stereotyped straight forming method that it still adopts basically, to original the settling at one go of major general, changing multistep into puts in place, but the bent angle that it still adopts and moulding are synchronously carried out.
Summary of the invention
The present invention, for addressing this problem, has designed the tank support that suppressed of order moulding in a kind of minute, the repeatedly new method of bent angle, and success.
The present invention realizes by following technical measures: a kind of processing technology of bent angle flange trough girder tank support comprises following operation:
Operation one: cut plate blank profile processed;
Operation two: plate blank is pressed into to flange grooved straight beam;
Operation three: suppress successively bent angle and proofreaied and correct, making its bent angle requirement that reaches bent angle flange trough girder tank support, the compacting bent angle process in corner arc radius R along with the compacting times N increase R successively from large to small;
Operation four: carry out follow-up punching processing, complete the processing of tank support.
Wherein, the compacting times N of bent angle is preferred: N >=2.5Kh/ b, most preferably N gets, the smallest positive integral of the value of N >=2.5Kh/ b.
N---bent angle compacting number of times, round numbers;
K---bent angle coefficient, K=z/t, the monolateral gap that wherein z is punch and die; School shape calendering row in " metal punching workshop manual " front page the 489th page table 1 that the z value is published referring to National University of Polytech Press in September, 1989.The K value sees the following form 1.
Table 1
| z | 1.08 t | 1.09 t | 1.1 t | 1.1 t |
| K=z/t | 1.08 | 1.09 | 1.1 | 1.1 |
H---cross section grooved height, the mm of unit;
B---section slot molded breadth degree, the mm of unit.
Beneficial effect of the present invention is: what the processing technology of this bent angle flange trough girder tank support adopted is
minute order moulding, bent angle repeatedlynew process, (one-shot forming is repeatedly suppressed to be different from " control method of anti-cracking during vehicle oil-tank bracket tension ", the moulding simultaneously of cross section grooved and bent angle) invention, adopted cross section grooved and the bent angle pressing process of moulding respectively, reduced the processor and carried out the operation easier of multi-drawing in once suppressing, make the moulding simultaneously of complicated metal material cross section grooved and bent angle, become simple cross section grooved and the bent angle pressing process of moulding respectively, cracking or the ultra-thin phenomenon that cause in pressing process the bent angle position of having avoided bent angle flange trough girder tank support of success.
The accompanying drawing explanation
The structural representation that Fig. 1 is bent angle flange trough girder tank support.
The right view that Fig. 1 a is Fig. 1.
Fig. 2 is dull and stereotyped straight forming method process decomposition figure.
Fig. 3 is first dull and stereotyped bent angle, secondary shaping method to suppress process decomposition figure.
Fig. 4 is the process decomposition figure of invention.
The specific embodiment
For clearly demonstrating the technical characterstic of this programme, below by a specific embodiment, this programme is set forth.
As shown in drawings, a kind of processing technology of bent angle flange trough girder tank support comprises following operation:
Operation one: cut plate blank profile processed;
Operation two: plate blank is pressed into to flange grooved straight beam;
Operation three: suppress successively bent angle and proofreaied and correct, making its bent angle requirement that reaches bent angle flange trough girder tank support, the compacting bent angle process in corner arc radius R along with the compacting times N increase R successively from large to small;
Operation four: carry out follow-up punching processing, complete the processing of tank support.
Wherein, the compacting times N of bent angle is preferred: N >=2.5Kh/ b, and, most preferably N gets, the smallest positive integral of the value of N >=2.5Kh/ b.
N---bent angle compacting number of times, round numbers;
K---bent angle coefficient, K=z/t, the monolateral gap that wherein z is punch and die; School shape calendering row in " metal punching workshop manual " front page the 489th page table 1 that the z value is published referring to National University of Polytech Press in September, 1989.The K value sees the following form 1.
Table 1
| z | 1.08 t | 1.09 t | 1.1 t | 1.1 t |
| K=z/t | 1.08 | 1.09 | 1.1 | 1.1 |
H---cross section grooved height, the mm of unit;
B---section slot molded breadth degree, the mm of unit.
With K---the bent angle coefficient, z gets 1.1t, K=z/t=1.1; H---cross section grooved height h=40mm; B---section slot molded breadth degree b=92mm, be example N >=2.5Kh/ b=2.5 * 1.1 * 40/92 ≈ 1.2, and the most preferably value of N is 2.
Determine that as calculated the bent angle of tank support can suppress at twice, thus we after the grooved of compacting fuel tank cross section, the large bent angle R1(that bends out 150 ° is shown in Fig. 4), make the radius of corner RI of corner>R2 when suppressing tank support bent angle R2 for the second time.Hence one can see that: tank support divides order moulding, the new method of bent angle repeatedly, make complicated tank support forming process, cross section grooved and two kinds of simple forming processes of compacting bent angle have been resolved into, determine according to the degree of depth h of cross section, corner grooved and the ratio of width b the number of times of suppressing bent angle, guarantee the Uniform Flow of tank support corner metal material in pressing process, thereby eliminated cracking or the ultra-thin phenomenon of tank support corner.
The present invention can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (1)
1. the processing technology of a bent angle flange trough girder tank support, is characterized in that, comprises following operation:
Operation one: cut plate blank profile processed;
Operation two: plate blank is pressed into to flange grooved straight beam;
Operation three: suppress successively bent angle and proofreaied and correct, making its bent angle requirement that reaches bent angle flange trough girder tank support, the compacting bent angle process in corner arc radius R along with the compacting times N increase R successively from large to small;
Operation four: carry out follow-up punching processing, complete the processing of tank support;
The compacting times N of described bent angle >=2.5Kh/ b,
Wherein, N---bent angle compacting number of times, round numbers;
K---bent angle coefficient, K=z/t, the monolateral gap that wherein z is punch and die;
H---cross section grooved height, the mm of unit;
B---section slot molded breadth degree, the mm of unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100860545A CN102601220B (en) | 2012-03-28 | 2012-03-28 | Machining process for bend flange channel girder fuel tank bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100860545A CN102601220B (en) | 2012-03-28 | 2012-03-28 | Machining process for bend flange channel girder fuel tank bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102601220A CN102601220A (en) | 2012-07-25 |
| CN102601220B true CN102601220B (en) | 2013-12-11 |
Family
ID=46519203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100860545A Expired - Fee Related CN102601220B (en) | 2012-03-28 | 2012-03-28 | Machining process for bend flange channel girder fuel tank bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102601220B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815900A (en) * | 2015-05-19 | 2015-08-05 | 上海华庄模具有限公司 | Aluminum channel section part stamping bending forming technology |
| MX2021003377A (en) | 2018-09-26 | 2021-08-16 | Hydro Extruded Solutions As | Clamping strap. |
| CN109226491B (en) * | 2018-10-17 | 2024-04-09 | 长华控股集团股份有限公司 | Forming method utilizing efficient stamping part flanging turnover device |
| CN112658088B (en) * | 2021-01-04 | 2022-01-21 | 中国航空制造技术研究院 | Thermal forming method for titanium alloy thin-wall small-angle curved surface flanging |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947027A (en) * | 1982-09-11 | 1984-03-16 | Toyota Motor Corp | Bend-working method of expanding and contacting flange |
| CN101130956B (en) * | 2007-08-03 | 2010-06-09 | 攀钢集团攀枝花钢铁研究院 | Manufacturing technique of cold-bending steel sheet pile |
| CN101357383B (en) * | 2008-03-27 | 2010-11-03 | 武汉理工大学 | Cracking-prevention control method of vehicle oil-tank bracket tension |
-
2012
- 2012-03-28 CN CN2012100860545A patent/CN102601220B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102601220A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102601220B (en) | Machining process for bend flange channel girder fuel tank bracket | |
| CN211757970U (en) | Rolling circle upgrades forming die | |
| CN105057469B (en) | Sleeve-formation progressive die | |
| CN103878246A (en) | Bending machine die for nine-bend workpiece and machining method of nine-bend workpiece | |
| CN103128207B (en) | The processing technology of circlip and shape device | |
| KR20130113258A (en) | Bending device of outer casing for refrigerator | |
| CN107835722B (en) | Press forming method and method for manufacturing press formed part | |
| CN105121049A (en) | Molded material manufacturing method and molded material | |
| CN205200313U (en) | Bending of rolling up system alloy bush upgrades mould | |
| CN102423778B (en) | Manufacturing process and the mould therefor thereof of backward flanging is carried out based on 90 ° of web surfaces | |
| CN202411233U (en) | Metal plate forming bending machine mold | |
| CN202683762U (en) | S-shaped bent spring die | |
| CN103736841B (en) | Auto parts machinery method for high-precision manufacturing | |
| CN203184553U (en) | Full-automatic processing forming device of elastic check ring | |
| JP2014226678A (en) | Method for bend forming of metal plate | |
| CN109772966B (en) | Bending method for pre-plated copper steel strip punch forming arc striking plate | |
| CN208321833U (en) | A kind of continuous bending mold of bracket | |
| CN105251886A (en) | Progressive die stamping device and process for porous plate of automobile air-conditioning parallel flow evaporator | |
| CN215143925U (en) | Double-station stamping die of seat wire harness mounting bracket | |
| CN106623524A (en) | Curving tool capable of adjusting size of radian | |
| CN215143924U (en) | Continuous stamping die of stopper apron | |
| CN204135179U (en) | Bending pressing mold | |
| CN203578544U (en) | Die set special for production of pipe clamp | |
| CN204486599U (en) | A kind of Bending Mould of enclosed type sheet metal component | |
| CN211489211U (en) | Fine blanking die without pedal angle |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20150328 |
|
| EXPY | Termination of patent right or utility model |