CN1033760A - Sealed negative-camber moulding method using high-pressure liquid - Google Patents
Sealed negative-camber moulding method using high-pressure liquid Download PDFInfo
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- CN1033760A CN1033760A CN 87108219 CN87108219A CN1033760A CN 1033760 A CN1033760 A CN 1033760A CN 87108219 CN87108219 CN 87108219 CN 87108219 A CN87108219 A CN 87108219A CN 1033760 A CN1033760 A CN 1033760A
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Abstract
The present invention relates to the plastic metallic sheet stock of a kind of usefulness and carry out the processing method of forming parts.It is the huge reform to traditional steel mould punching technology.
Adopt this forming method, only need one with the identical former of processing parts shape and a core simple in structure, that be provided with the negative camber sealing ring.In the work, only need sheet metal with the need moulding, be close to core, place former, make and form an annular seal space between sealing ring on the core and the sheet metal, inject highly pressurised liquid with the liquid pump in the core annular seal space again, sheet metal can make it become one and the identical formed body of former under the effect of highly pressurised liquid.
Description
The present invention relates to the plastic metallic sheet stock of a kind of usefulness and carry out the processing method of forming parts, be mainly used in the following various plastic metallic sheet stock of 3mm for the complexity moulding of part in addition.
Existingly make the forming method of part, be generally punching block punch forming method with metallic sheet stock.Use this forming method to make part, need be processed into earlier and identical former of design of part shape and formpiston, then sheet metal be placed between the matched molds, under the effect of external force impulsive force, plastic deformation through material suppresses and the identical product of part.The subject matter that adopts this forming method processing parts to exist is: one, the matched molds processing for complex-shaped part is relatively more difficult, particularly the difficulty of formpiston processing is bigger, two, punch forming easily causes waste product fast, three, the gap between the matched molds is difficult for adjusting in punching course, easily influences its service life.Four, can not the big complex parts of molding cavity ratio open portion, the clear 55-14741 of Japan Patent provides the comparatively formative method of complicated parts-motorcycle tank pattern of a kind of shape for this reason.This method proposes to adopt the skin of the polyurethane rubber material of resilient dilatancy, high a piece of wood serving as a brake to halt a carriage as the formpiston of fuel tank.Though the processing problems ， And that it has partly solved its formpiston has relatively improved its service life, all fundamentally do not solve formpiston make complicated and service life problem.
In order to solve the problem of above-mentioned existence, the purpose of this invention is to provide a kind of sealed negative-camber moulding method using high-pressure liquid.
Sealed negative-camber moulding method using high-pressure liquid is a kind of processing method that Pascal's theorem is applied to plastic metallic sheet stock moulding, its concrete practice is: make one and the identical former of part geometry shape to be processed, with foolproof core of a planform And one inlet opening is set in core, at mandrel surface the one negative camber sealing ring similar to part geometry shape to be processed is set, core is closely posted in the former mutually with sheet metal to be processed, make it form the annular seal space of a negative camber.Inject highly pressurised liquid from the inlet opening of core in the annular seal space of negative camber, make it directly act on metal sheet surface, And forces the geometry of sheet metal according to former, produces plastic deformation in the scope of its percentage elongation, and And finishes whole forming process.
Sealed negative-camber moulding method using high-pressure liquid is compared with the punching block impact forming method, it has not only simplified formpiston, make it become a foolproof core of geometry, and can make metal material obtain best drawing effect, reduce the manufacturing cost of raw-material consumption and complex parts significantly; And can make any complicated parts, the moulding in the scope of its material percentage elongation becomes possibility.
Provided in the accompanying drawing and adopted sealed negative-camber moulding method using high-pressure liquid to make the embodiment of motorcycle tank.
The schematic diagram of Fig. 1 for adopting the negative camber sealing high-pressure liquid method of forming to carry out the motorcycle tank moulding,
Fig. 2 is the installation site of negative camber sealing ring on core
For the ease of understanding the present invention, the existing embodiment that provides in reference to the accompanying drawings further specifies:
Fig. 1 has described the schematic diagram that adopts the negative camber sealing high-pressure liquid method of forming to carry out the motorcycle tank extrusion modling.Wherein dotted line represents that sheet material adheres to the home position of core.It will need the motorcycle tank system of extrusion modling to become a former of being made up of lower mold body 6 and left and right sides die body 9 earlier, and a rectangle, be provided with inlet opening 1, be provided with the simple core 7 of planform of the check valve of being made up of steel ball 8, spring 3, screw 5 in inlet opening 1, And is provided with a negative camber sealing ring 2 similar to the motorcycle oil box shape on core 7.Concrete workflow is: the sheet metal that will need extrusion molding, be close to core, insert in the former, make between the negative camber sealing ring 2 and sheet metal that is arranged on the core 7, form an annular seal space, injecting highly pressurised liquid 4 And by the inlet opening 1 of liquid pump on core 7 makes it directly act on metal sheet surface, force the geometry of sheet metal according to former, in the scope of its percentage elongation, produce plastic deformation, meanwhile, combination die can be exceeded the outer material (dotted portion among Fig. 1) of former replenishes into smoothly, make its become one with the identical motorcycle moulding of former oil box 10, thereby the complete forming process of whole fuel tank.
Claims (3)
1, the plastic metallic sheet stock of a kind of usefulness is carried out the sealed negative-camber moulding method using high-pressure liquid of forming parts, it is characterized in that adopting the part of this method moulding, only need one to be provided with inlet opening 1 with the identical former of part shape and one, the core 7 of negative camber sealing ring 2, during moulding, earlier metallic sheet stock to be formed is pasted tightly mutually with core 7, insert in the former, make the annular seal space that forms a negative camber between itself and the negative camber sealing ring 2, by the inlet opening 1 of liquid pump to core 7, in the negative camber annular seal space, inject highly pressurised liquid 4, make it directly act on metal sheet surface, force the geometry of sheet metal, in the scope of its percentage elongation, produce plastic deformation according to former.
2, sealed negative-camber moulding method using high-pressure liquid according to claim 1 is characterized in that being provided with the check valve of being made up of steel ball 8, spring 3, screw 5 etc. in the inlet opening 1 of core 7.
3, according to claim 1 or 2 described sealed negative-camber moulding method using high-pressure liquids, the shape that it is characterized in that being arranged at the negative camber sealing ring 2 on the core 7 is similar to the part that needs moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87108219 CN1033760A (en) | 1987-12-25 | 1987-12-25 | Sealed negative-camber moulding method using high-pressure liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87108219 CN1033760A (en) | 1987-12-25 | 1987-12-25 | Sealed negative-camber moulding method using high-pressure liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1033760A true CN1033760A (en) | 1989-07-12 |
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ID=4816421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87108219 Pending CN1033760A (en) | 1987-12-25 | 1987-12-25 | Sealed negative-camber moulding method using high-pressure liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033760A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592661B (en) * | 2001-05-01 | 2010-04-28 | 诺维尔里斯公司 | Method of pressure-ram-forming metal containers and the like |
| CN102764808A (en) * | 2012-07-24 | 2012-11-07 | 哈尔滨工业大学 | Hydraulic forming device and method of reducing cylindrical part |
-
1987
- 1987-12-25 CN CN 87108219 patent/CN1033760A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592661B (en) * | 2001-05-01 | 2010-04-28 | 诺维尔里斯公司 | Method of pressure-ram-forming metal containers and the like |
| CN102764808A (en) * | 2012-07-24 | 2012-11-07 | 哈尔滨工业大学 | Hydraulic forming device and method of reducing cylindrical part |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |