CN101708518B - Novel deep stretching process of curved surface - Google Patents
Novel deep stretching process of curved surface Download PDFInfo
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- CN101708518B CN101708518B CN2009102595398A CN200910259539A CN101708518B CN 101708518 B CN101708518 B CN 101708518B CN 2009102595398 A CN2009102595398 A CN 2009102595398A CN 200910259539 A CN200910259539 A CN 200910259539A CN 101708518 B CN101708518 B CN 101708518B
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Abstract
The invention relates to a novel deep stretching process of a curved surface. A structure of a stretching material of a product is cut by adopting special equipment; the stretching material is welded into a closed structure; after a welding seam is reshaped and a swaging is subjected to reversal pretreatment, a rudiment of the treated closed product is put in the curved surface or a cambered mould; and a required shape is pressed by utilizing the stamping press of the mould through one-time forming. The novel deep stretching process comprises the specific operating steps: cutting, closing, welding, the reshaping of the welding seam and the reversal pretreatment and the stretching of the swaging. The novel deep stretching process has the advantages of simple process, convenient operation, one-time stretch forming, time saving, improved efficiency, needlessness of repeatedly annealing and tempering treatment, high stretching quality, low requirement on raw materials, accurate shape of aformed product without the defects, of stretching pieces, such as surface dents, salient points, avulsion and the like, and low comprehensive cost.
Description
Technical field
The present invention relates to a kind of novel deep stretching process of curved surface.
Background technology
Traditional drawing process is stamping forming with carrying out after the direct simple process of strip blank mostly.This technology is used more when the stretching common product, but carry out the product of deep drawn with respect to needs, its punching course just need repeatedly be finished, and need repeatedly anneal after when punching press, temper, not only make trouble, efficient is low, and to the ingredient requirement height, waste of material is many, and its complex steps, success rate is on the low side relatively, poor product quality; Its designing for manufacturing to mould simultaneously, construction requirement are all very high, have increased extra cost to a certain extent.In sum, traditional drawing process has restricted the making of product to a certain extent, is difficult to meet the need of market, and is unfavorable for the development of enterprise.
Summary of the invention
The purpose of this invention is to provide a kind of novel deep stretching process of curved surface, overcome the deficiency of the said goods, is that a kind of technology is simple, easy to operate, stretching efficient height, the novel process that quality is good, cost is low.
The objective of the invention is to be achieved through the following technical solutions:
A kind of novel deep stretching process of curved surface, adopt special equipment to leave product spread material structure, and spread material is welded into closing structure, then after soldered and pre-anti-processing of binder are handled in shaping, the closed product blank that to handle well is again put into the mould of curved surface or arc, utilize the stamping press one-shot forming of mould to extrude required form, its concrete operations step comprises: the pre-anti-and stretching of shaping, binder of opening material, closure, welding, soldered.
Open material: at first, leave billot, then billot is cut into the spread material size of product according to the monolateral amplification of expansion sample of drawn products; When punching press, huge relatively especially tensioning member can decompose spread material, resolves into biplate material or multi-disc material, then by the synthetic complete product spread material blank of soldering group.
Closed: as to adopt Samsung rumble circular knitting machine that stamping forming spread material is carried out the closed processing of rumble circle, its concrete grammar is: the feed shaft direction that spread material is placed on the Samsung rumble circular knitting machine that has turned round, it is round as a ball to allow spread material follow the rumble circular knitting machine to carry out synchronously, and the spread material behind the described rumble circle can be sports ground shape, circle, circle drum, the flat step of oblique cone band, ellipse, oval cydariform, oval taper, ellipse and is with flat step etc.; For shaped article is square body, is with needs employing special fixture bendings such as flat step as square awl, square bulging taper or square awl, and this moment, bending wanted monolithic to carry out, and carried out bending about dividing.
Welding: size, shape according to spread material weld 1 in different ways) adopt preceding feed type seam welder to weld; 2) adopt protecting butt welding machine to weld; 3) subminiature spare adopts mash welder to weld.
The shaping of soldered: all seams after welding must be carried out shaping and be flattened processing.
The binder of the big end of product is anti-in advance: need suppress a binder ring at the big end of blank before stretching, concrete operations are: pick up the blank that shaping flattens weld seam, adjust on the pre-anti-machine of location needing binder partly to put into, depress switch and return the binder part in advance, raise product, limit after guaranteeing to return in advance is between 5mm-8mm, and pre-limit after anti-becomes one to be less than or equal to angles of 90 degree greater than 45 degree with the product figure, thus formation binder ring.
The concrete operations that stretch are:
1), the blank of pre-anti-mistake is put into mould.
2), start stamping machine, by mould punching press blank, form and the identical shaped product of core rod behind the blank drawn.
3), the product that forms of the back that take out to stretch, get final product.
The beneficial effect of novel deep stretching process of curved surface of the present invention is: technology is simple, easy to operate; The one-off drawing moulding is saved time, is raised the efficiency, do not need repeatedly to anneal, temper, and stretching quality height, raw material require low, and the shape of product of moulding is accurate, surface no indenture, salient point, the shortcoming of tensioning member such as tearing; Integrated cost is low, improves the competitiveness of product in market, helps the popularization of product.
The specific embodiment
The described novel deep stretching process of curved surface of the embodiment of the invention, the blank elder generation closure of holding successfully is welded into a closing structure, put into the mould of curved surface or arc again, utilize the stamping press one-shot forming of mould to extrude required form, its concrete operations step comprises: the pre-anti-and stretching of shaping, binder of opening material, closure, welding, soldered.
Open material: at first, leave billot, handle mould that material does becomes billot product with the press machine stamping-out spread material size with 45# or Cr12 or Cr12 then with shearing machine according to the monolateral amplification 5mm of the expansion sample of drawn products; When punching press, huge relatively especially tensioning member, for saving material, reduce the manufacturing cost and the volume of mould, can decompose spread material, resolve into biplate material or multi-disc material,, can make full use of raw material like this and can reduction at double open the manufacturing cost and the volume of expecting mould again then by the synthetic complete product spread material blank of soldering group.
Closed: as to adopt Samsung rumble circular knitting machine that stamping forming spread material is carried out the closed processing of rumble circle, its concrete grammar is: both hands are held the feed shaft direction that spread material (being generally the 8-15 sheet is advisable) is placed on the Samsung rumble circular knitting machine that has turned round, it is round as a ball to allow spread material follow the rumble circular knitting machine to carry out synchronously, wherein can suitably regulate the feed shaft pressure of Samsung rumble circular knitting machine, assurance allows the spread material after round as a ball be freely formed the close-shaped of a circle, it is to be welded to take off established closed form spread material, and the spread material behind the described rumble circle can be sports ground shape, circular, circle drum, the flat step of oblique cone band, oval, oval cydariform, oval taper, ellipse is with flat step etc.; For shaped article is square body, is with needs employing special fixture bendings such as flat step as square awl, square bulging taper or square awl, and this moment, bending wanted monolithic to carry out, and carried out bending about dividing.
Welding: size, shape according to spread material are welded in different ways: the feed type seam welder welds before 1) adopting.The power supply and the gas switch of feed type seam welder before opening, adjust the travel switch of its required weld length, both hands will surround the deflector chute that close-shaped product is accurately put into seam welder then, the switch of the seam welder that tramps with one's feet down, and seam welder work begins to carry out the welding of product; 2) adopt protecting butt welding machine to weld.To surround close-shaped product with special fixture and be fixed on the fuselage of protection welding machine, each operating switch of control protection welding machine carries out level and smooth roll welding at the product place of sewing up; 3) subminiature spare adopts mash welder to weld.Along the line that overlaps the position, both hands are held product then, aim at the overlap joint line carries out the pointwise pointwise on mash welder to be welded welding, need at last remove welding slag to this weldment with straight line of product of surrounding closed form, and sanding and polishing is handled.
The shaping of soldered: all seams after welding must be carried out shaping and flatten to be handled, and concrete operations are: both hands are caught the small end of product, and the solder joint place is placed on the working position of shaping press, handle each switch, the product seam crossing is carried out shaping flatten.
The binder of the big end of product is anti-in advance: need suppress a binder ring at the big end of blank before stretching, concrete operations are: pick up the blank that shaping flattens weld seam, adjust on the pre-anti-machine of location needing binder partly to put into, depress switch and return the binder part in advance, raise product, limit after guaranteeing to return in advance is between 5mm-8mm, and pre-limit after anti-becomes one to be less than or equal to angles of 90 degree greater than 45 degree with the product figure, thus formation binder ring.
If pre-anti-limit requires than broad (as 8-25mm), need this moment to adopt special-purpose bulging anti-limit machine or mould to carry out.
The concrete operations that stretch are:
1), the blank of pre-anti-mistake is put into mould, pre-anti-limit is attached on the face of binder ring, material returned ring height can suitably be adjusted according to product tapering size with the elasticity that core rod just cooperates.
2), unclamp both hands, handle the forcing press beginning, make descending cooperation of stretching patrix and compress the pre-anti-limit of product with the binder ring.Continue descendingly, the product material is stretched fully, be close to that core rod is final to be formed and the identical shaped product of core rod.
3), patrix finishes after the stretching of a product uply, because product is close to core rod, need carry out separating of product and core rod with binder ring down, following material returned ring is up, product is up thereupon breaking away from core rod, takes out the stretching process that product has promptly been finished this product.
When stretching, the mould of employing mainly is made up of patrix, core rod, material returned ring, and core rod is machined by line cutting, computer gong or numerically controlled lathe according to the shape of required shaped article; Patrix and material returned ring are generally cut by turning or line and machine, and the patrix of decimal product need cooperate processing with the core rod shape, is machined by Digit Control Machine Tool or computer gong, connecing of product stretched with the shaping one action finish.
Above-described embodiment, the present invention specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out its contour structures and compound mode etc. all should be included in protection scope of the present invention.
Claims (4)
1. novel deep stretching process of curved surface, it is characterized in that: adopt special equipment to leave product spread material structure, and spread material is welded into closing structure, then after soldered and pre-anti-processing of binder are handled in shaping, the closed product blank that to handle well is again put into the mould of curved surface or arc, utilizes the stamping press one-shot forming extrusion required form concrete operations step of mould to comprise: the pre-anti-and stretching of shaping, binder of opening material, closure, welding, soldered;
Described opening expects it is the spread material shape that raw material is cut into product;
Described closure is to adopt Samsung rumble circular knitting machine that stamping forming spread material is carried out the closed processing of rumble circle;
Described welding is that size, the shape according to spread material welded in different ways;
The shaping of described soldered: all seams after welding are carried out shaping and are flattened processing;
The binder of the big end of described product is anti-in advance: need suppress the binder ring at the big end of blank before stretching;
The concrete operations of described stretching are: 1), the blank of pre-anti-mistake is put into mould; 2), start stamping machine, by mould punching press blank, form and the identical shaped product of core rod behind the blank drawn; 3), the product that forms of the back that take out to stretch, get final product.
2. novel deep stretching process of curved surface according to claim 1, it is characterized in that: huge relatively tensioning member, when opening material, decompose spread material, resolve into biplate material or multi-disc material, then by the synthetic complete product spread material blank of soldering group.
3. novel deep stretching process of curved surface according to claim 1 is characterized in that: closed concrete operations are: spread material is placed on the feed shaft direction of the Samsung rumble circular knitting machine that has turned round, allows spread material follow the rumble circular knitting machine to carry out round as a ball closure synchronously; For shaped article is square body, is with needs employing special fixture bendings such as flat step as square awl, square bulging taper or square awl, and this moment, bending wanted monolithic to carry out, and carried out bending about dividing.
4. novel deep stretching process of curved surface according to claim 1 is characterized in that: the mode of described welding comprises: the feed type seam welder welds before adopting; Employing is welded the protection butt welding machine; Adopt mash welder to weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102595398A CN101708518B (en) | 2009-12-18 | 2009-12-18 | Novel deep stretching process of curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102595398A CN101708518B (en) | 2009-12-18 | 2009-12-18 | Novel deep stretching process of curved surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101708518A CN101708518A (en) | 2010-05-19 |
| CN101708518B true CN101708518B (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102595398A Expired - Fee Related CN101708518B (en) | 2009-12-18 | 2009-12-18 | Novel deep stretching process of curved surface |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319986B (en) * | 2011-08-25 | 2013-04-10 | 四川科新机电股份有限公司 | Method for cold-working double-R curved surface part |
| CN107931479A (en) * | 2017-11-03 | 2018-04-20 | 江苏嘉和热系统股份有限公司 | A kind of manufacture method of main slice of radiator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4137848A1 (en) * | 1990-11-16 | 1992-05-21 | Ricoh Kk | Electrophotographic photoconductor drum with high dimensional accuracy - is produced from sheet metal by HF welding, turning end over and stretching |
| RU2147478C1 (en) * | 1998-12-15 | 2000-04-20 | Открытое акционерное общество "АВТОВАЗ" | Method for making laminate sheet blank for drawing parts with damping properties |
| CN1519066A (en) * | 2003-09-02 | 2004-08-11 | 锦州秀亭制管有限公司 | Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe |
| CN1586800A (en) * | 2004-08-31 | 2005-03-02 | 锦州秀亭制管有限公司 | Producing method and forming device for thin wall stainless steel concave channel spiral pipe |
-
2009
- 2009-12-18 CN CN2009102595398A patent/CN101708518B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4137848A1 (en) * | 1990-11-16 | 1992-05-21 | Ricoh Kk | Electrophotographic photoconductor drum with high dimensional accuracy - is produced from sheet metal by HF welding, turning end over and stretching |
| RU2147478C1 (en) * | 1998-12-15 | 2000-04-20 | Открытое акционерное общество "АВТОВАЗ" | Method for making laminate sheet blank for drawing parts with damping properties |
| CN1519066A (en) * | 2003-09-02 | 2004-08-11 | 锦州秀亭制管有限公司 | Method for manufacturing stainless steel tail gas pipe of car, and automatic cutter for cutting stainless steel pipe |
| CN1586800A (en) * | 2004-08-31 | 2005-03-02 | 锦州秀亭制管有限公司 | Producing method and forming device for thin wall stainless steel concave channel spiral pipe |
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| Publication number | Publication date |
|---|---|
| CN101708518A (en) | 2010-05-19 |
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