CN105327962B - A kind of mould for controlling cup shell backward extrusion bottom shape - Google Patents

A kind of mould for controlling cup shell backward extrusion bottom shape Download PDF

Info

Publication number
CN105327962B
CN105327962B CN201510677257.5A CN201510677257A CN105327962B CN 105327962 B CN105327962 B CN 105327962B CN 201510677257 A CN201510677257 A CN 201510677257A CN 105327962 B CN105327962 B CN 105327962B
Authority
CN
China
Prior art keywords
mould
hole
shape
drift
cup shell
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
Application number
CN201510677257.5A
Other languages
Chinese (zh)
Other versions
CN105327962A (en
Inventor
杨玉兵
何祝斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU SUNWAY GROUP FEIDA CO Ltd
Original Assignee
JIANGSU SUNWAY GROUP FEIDA CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU SUNWAY GROUP FEIDA CO Ltd filed Critical JIANGSU SUNWAY GROUP FEIDA CO Ltd
Priority to CN201510677257.5A priority Critical patent/CN105327962B/en
Publication of CN105327962A publication Critical patent/CN105327962A/en
Application granted granted Critical
Publication of CN105327962B publication Critical patent/CN105327962B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00Profiling tools for metal extruding
    • B21C25/02Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/20Making uncoated products by backward extrusion

Abstract

The present invention provides a kind of mould for controlling cup shell backward extrusion bottom shape, including drift set, anti-crowded drift, guide sleeve, lower mould and material returned pin.A kind of mould for controlling cup shell backward extrusion bottom shape of the present invention, it is simple in construction, in the case where not changing the preceding topic of original pressing method, it is resolved by extrusion defects such as the original warpage foldings of the method for mould design under changing, the lower mould of this cup shell indirect-extrusion mould eliminate due to base thickness and wall-thickness ratio are less than 1 and warpage caused by extruding folds the defects of, improve product qualification rate and service life.

Description

A kind of mould for controlling cup shell backward extrusion bottom shape
Technical field
The invention belongs to extrusion die, and in particular to a kind of mould for controlling cup shell backward extrusion bottom shape.
Background technology
In the numerous areas such as automobile, machinery, ship, a variety of parts are cup shells, are especially made in automobile industry It is more with this part, the brake piston in such as automobile steering device in sliding shoe, brake.Such part demand batch compared with Greatly, if being machined into method to obtain, material of not only taking a lot of work, and be a lot of parts its cup-like inners also have it is various such as Tooth form, groove etc., it is difficult to obtained by the method for machining.And the base thickness of such anti-crowded part is managed beyond traditional extruding By lower limit, i.e. the minimum base thickness of backward extrusion part is equal to wall thickness.Therefore often formed using traditional backward extrusion method in cup shell bottom One stagnant zone, commonly referred to as " dead band ".Because area's metal is indeformable, when base thickness accomplishes to be less than wall thickness with its phase Adjacent upper metal has deformation and flowing, and strong deformation then just occurs in intersection, can so cause due to upper metal A large amount of flowings with " dead band " metal flow and bottom metal formed warpage fold the defects of.Metal shears will be caused when serious Split, i.e. " dead band " crackle.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of control cup shell backward extrusion bottom shape mould, overcome on Defect is stated, solves the problems such as product is difficult to be processed, and is also easy to produce defect.
In order to solve the above technical problems, the present invention provides a kind of mould for controlling cup shell backward extrusion bottom shape, including Drift set, drift, guide sleeve, lower mould and material returned pin are instead squeezed,
The guide sleeve has during first surface and the second surface corresponding with the first surface, the guide sleeve be in Hollow structure, first through hole run through the first surface and second surface, and the drift set is from first surface insertion described the The top of one through hole, the lower mould insert the bottom of the first through hole, the hole on the top of the first through hole from second surface Footpath is less than the aperture of the bottom of the first through hole, and the drift is enclosed in the first through hole and slided up and down, the drift set In hollow structure, the drift set has the 3rd surface and fourth surface corresponding with the 3rd surface, and the second through hole passes through Lead to the 3rd surface and the 4th surface, the anti-crowded drift is plugged in second through hole, and the anti-crowded drift is described Slided up and down in second through hole, the lower mould has the 5th surface and sixth surface corresponding with the 5th surface, described The groove for placing workpiece is offered on 5th surface, the diameter of the groove is more than the diameter of the anti-crowded drift, described Lower mould has several third through-holes through the 5th surface and the 6th surface, and several institutes are provided with the third through-hole Material returned pin is stated, the material returned pin slides up and down in the third through-hole.
As a kind of preferred scheme of the mould of control cup shell backward extrusion bottom shape of the present invention, the control cup The mould of shape part backward extrusion bottom shape also includes shrink ring, and the shrink ring is set in the outside of the lower mould.
As it is of the present invention control cup shell backward extrusion bottom shape mould a kind of preferred scheme, the groove Bottom has the first sphere and the second sphere, and first sphere is arranged on the periphery of second sphere, first sphere Radius be less than second sphere radius.
As a kind of preferred scheme of the mould of control cup shell backward extrusion bottom shape of the present invention, first ball The air line distance d1 at the both ends in face is 10mm.
As a kind of preferred scheme of the mould of control cup shell backward extrusion bottom shape of the present invention, first ball The radius in face is 18mm.
As a kind of preferred scheme of the mould of control cup shell backward extrusion bottom shape of the present invention, second ball The radius in face is 19.5mm.
Compared with prior art, a kind of mould for controlling cup shell backward extrusion bottom shape proposed by the present invention, its structure Simply, original pressing method is not changed, the extrusion defects such as the original warpage of the method by changing lower mould design folds It is resolved, there is the characteristics of product stability is strong, and qualification rate is high, and service life is long.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this For the those of ordinary skill of field, without having to pay creative labor, it can also be obtained according to these accompanying drawings other Accompanying drawing.Wherein,
Fig. 1 is a kind of cross-section structure signal of the front view of the mould of control cup shell backward extrusion bottom shape of the present invention Figure;
Fig. 2 is a kind of lower die structure schematic diagram of the mould of control cup shell backward extrusion bottom shape of the present invention.
Wherein:1 it is drift set, 2 be anti-crowded drift, 3 be guide sleeve, 4 be lower mould, 5 is material returned pin.
Embodiment
A kind of mould for controlling cup shell backward extrusion bottom shape of the present invention, it includes:Drift set 1, anti-squeeze are rushed First 2, guide sleeve 3, lower mould 4 and material returned pin 5.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, with reference to embodiment The present invention is further detailed explanation.
First, " one embodiment " or " embodiment " referred to herein refers to may be included at least one realization side of the present invention Special characteristic, structure or characteristic in formula." in one embodiment " that different places occur in this manual not refers both to Same embodiment, nor the single or selective embodiment mutually exclusive with other embodiment.
Secondly, the present invention is described in detail using structural representation etc., when the embodiment of the present invention is described in detail, for ease of saying It is bright, represent that a kind of schematic diagram for the mould structure for controlling cup shell backward extrusion bottom shape can disobey general proportion and make local put Greatly, and the schematic diagram is example, and it should not limit the scope of protection of the invention herein.In addition, should in actual fabrication Include the three dimensions of length, width and depth.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of cuing open for the front view of the mould of control cup shell backward extrusion bottom shape of the present invention The left part of face structural representation, wherein Fig. 1 represents that a kind of mould for controlling cup shell backward extrusion bottom shape adds in workpiece Structural representation after work, Fig. 1 right part represent that a kind of mould for controlling cup shell backward extrusion bottom shape adds in workpiece Structural representation before work.As shown in figure 1, a kind of mould for controlling cup shell backward extrusion bottom shape, it includes:Drift Set 1, anti-crowded drift 2, guide sleeve 3, lower mould 4 and material returned pin 5.Lower mask body introduces above-mentioned structure.
There is the guide sleeve 3 first surface (not shown) and the second surface corresponding with the first surface (not to scheme Show), the guide sleeve 3 is in hollow structure, and first through hole is (not shown) to run through the first surface and second surface, the drift Set 1 inserts the top of the first through hole from the first surface, and the lower mould 4 inserts the first through hole from second surface Bottom, the aperture on the top of the first through hole are less than the aperture of the bottom of the first through hole, and the drift set 1 is described Slided up and down in first through hole, drift set 1 be in hollow structure, the drift set 1 with the 3rd surface (not shown) and with The 4th corresponding surface (not shown) of 3rd surface, the second through hole insertion (not shown) the 3rd surface and the 4th table Face, the anti-crowded drift 2 are plugged in second through hole, and the anti-crowded drift 2 slides up and down in second through hole, institute Stating lower mould 4 has the 5th surface (not shown) and sixth surface (not shown) corresponding with the 5th surface, and the described 5th The groove (not shown) for placing workpiece is offered on surface, the diameter of the groove is more than the diameter of the anti-crowded drift 2, The lower mould 4 has several third through-holes (not shown) through the 5th surface and the 6th surface, the third through-hole Interior to be provided with several described material returned pins 5, the material returned pin 5 slides up and down in the third through-hole.The quantity of material returned pin 5 and institute The quantity for stating third through-hole corresponds.In work pieces process, when drift set 1 and anti-crowded drift 2 are pressed downward, the contact of the 4th surface 5th surface.
In order to avoid causing workpiece to deform because of the power that generation expands outwardly in extruding, the control cup shell backward extrusion The mould of bottom shape also includes shrink ring (not shown), and the shrink ring is set in the outside of the lower mould.
Please continue to refer to Fig. 1 and Fig. 2 is combined, Fig. 2 is a kind of mould of control cup shell backward extrusion bottom shape of the present invention The lower die structure schematic diagram of tool.As shown in Fig. 2 the bottom of the groove has the first sphere (not shown) and the second sphere (not Diagram), first sphere is arranged on the periphery of second sphere, and the radius of first sphere is less than second sphere Radius.
In a preferred embodiment, the air line distance d1 at the both ends of first sphere is 10mm, first sphere Radius be 18mm, the radius of second sphere is 19.5mm.
A ball smaller than original product requirement curvature not only so is pre-machined out in the anti-part squeezed beyond drift 2 Face, and the curved surface of lower mould 4 is made up of the sphere of two curvature, this Curvature varying is advantageous to deformation and the stream of metal It is dynamic, the defects of being eliminated product.
A kind of part of the mould of above-mentioned control cup shell backward extrusion bottom shape includes but is not limited to above-mentioned kind Class.
Those of ordinary skill in art it should be appreciated that, the features of the present invention or the first purpose are: A kind of mould for controlling cup shell backward extrusion bottom shape of the present invention, it is simple in construction, do not changing original extruding side Under the preceding topic of method, it is resolved by extrusion defects such as the original warpage foldings of the method for mould design under changing, this cup The lower mould of part indirect-extrusion mould is eliminated because base thickness and wall-thickness ratio lack less than 1 in warpage folding etc. caused by extruding Fall into, improve product qualification rate and service life.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferable The present invention is described in detail embodiment, it will be understood by those within the art that, can be to the technology of the present invention Scheme is modified or equivalent substitution, and without departing from the spirit and scope of technical solution of the present invention, it all should cover in this hair Among bright right.

Claims (5)

1. a kind of mould for controlling cup shell backward extrusion bottom shape, it is characterized in that:Including drift set, instead squeeze drift, guide sleeve, Lower mould and material returned pin,
The guide sleeve has first surface and the second surface corresponding with the first surface, and the guide sleeve is in hollow knot Structure, first through hole run through the first surface and second surface, and the drift set is logical from first surface insertion described first The top in hole, the lower mould insert the bottom of the first through hole from second surface, and the aperture on the top of the first through hole is small In the aperture of the bottom of the first through hole, the drift is enclosed in the first through hole and slided up and down, during the drift set is in Hollow structure, the drift set have the 3rd surface and fourth surface corresponding with the 3rd surface, the second through hole insertion institute The 3rd surface and the 4th surface are stated, the anti-crowded drift is plugged in second through hole, and the anti-crowded drift is described second Being slided up and down in through hole, the lower mould has the 5th surface and sixth surface corresponding with the 5th surface, and the described 5th The groove for placing workpiece is offered on surface, the diameter of the groove is more than the diameter of the anti-crowded drift, the lower mould It is provided with described in several and moves back with several third through-holes through the 5th surface and the 6th surface, in the third through-hole Material pin, the material returned pin slide up and down in the third through-hole, and the bottom of the groove has the first sphere and the second sphere, First sphere is arranged on the periphery of second sphere, and the radius of first sphere is less than the half of second sphere Footpath.
2. a kind of mould for controlling cup shell backward extrusion bottom shape as claimed in claim 1, it is characterized in that:The control cup The mould of shape part backward extrusion bottom shape also includes shrink ring, and the shrink ring is set in the outside of the lower mould.
3. a kind of mould for controlling cup shell backward extrusion bottom shape as claimed in claim 1, it is characterized in that:First ball The air line distance d1 at the both ends in face is 10mm.
4. a kind of mould for controlling cup shell backward extrusion bottom shape as claimed in claim 1, it is characterized in that:First ball The radius in face is 18mm.
5. a kind of mould for controlling cup shell backward extrusion bottom shape as claimed in claim 1, it is characterized in that:Second ball The radius in face is 19.5mm.
CN201510677257.5A 2015-10-19 2015-10-19 A kind of mould for controlling cup shell backward extrusion bottom shape Expired - Fee Related CN105327962B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510677257.5A CN105327962B (en) 2015-10-19 2015-10-19 A kind of mould for controlling cup shell backward extrusion bottom shape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510677257.5A CN105327962B (en) 2015-10-19 2015-10-19 A kind of mould for controlling cup shell backward extrusion bottom shape

Publications (2)

Publication Number Publication Date
CN105327962A CN105327962A (en) 2016-02-17
CN105327962B true CN105327962B (en) 2017-11-14

Family

ID=55278839

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510677257.5A Expired - Fee Related CN105327962B (en) 2015-10-19 2015-10-19 A kind of mould for controlling cup shell backward extrusion bottom shape

Country Status (1)

Country Link
CN (1) CN105327962B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018120091A1 (en) * 2018-08-17 2020-02-20 Linhardt Gmbh & Co. Kg Can packaging, can packaging blank and device and method for their production

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53135876A (en) * 1977-05-02 1978-11-27 Hitachi Ltd Manufacture of cup type parts made of heat resisting alloy
CN2189991Y (en) * 1993-02-01 1995-02-22 上海高压容器厂 Sylinder extruding mould
CN101020200A (en) * 2006-02-14 2007-08-22 江苏森威集团有限责任公司 Precise forging process with composite radial and back extrusion
CN202824488U (en) * 2012-08-02 2013-03-27 盐城理研精密锻造有限公司 Reverse extruding die
CN104588426A (en) * 2015-01-14 2015-05-06 江苏创一精锻有限公司 Energy accumulator tank forging forming process and extrusion die
CN205074364U (en) * 2015-10-19 2016-03-09 江苏森威集团飞达股份有限公司 Mould of control cup shell backward extrusion bottom shape

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53135876A (en) * 1977-05-02 1978-11-27 Hitachi Ltd Manufacture of cup type parts made of heat resisting alloy
CN2189991Y (en) * 1993-02-01 1995-02-22 上海高压容器厂 Sylinder extruding mould
CN101020200A (en) * 2006-02-14 2007-08-22 江苏森威集团有限责任公司 Precise forging process with composite radial and back extrusion
CN202824488U (en) * 2012-08-02 2013-03-27 盐城理研精密锻造有限公司 Reverse extruding die
CN104588426A (en) * 2015-01-14 2015-05-06 江苏创一精锻有限公司 Energy accumulator tank forging forming process and extrusion die
CN205074364U (en) * 2015-10-19 2016-03-09 江苏森威集团飞达股份有限公司 Mould of control cup shell backward extrusion bottom shape

Also Published As

Publication number Publication date
CN105327962A (en) 2016-02-17

Similar Documents

Publication Publication Date Title
CN105327962B (en) A kind of mould for controlling cup shell backward extrusion bottom shape
JP2010284701A (en) Method and device for manufacturing three-way branch pipe or three-way branch member
CN205074364U (en) Mould of control cup shell backward extrusion bottom shape
CN201020481Y (en) Extrusion device used for producing high precision petroleum pump copper alloy pipe
CN103182632A (en) Method for molding and producing resonance rod by adopting flow control
CN204867269U (en) Cold heading machine stamping die for roller bearing
CN206981531U (en) A kind of trimming punch
CN206299683U (en) Pivoting support with pin tooth
CN206794406U (en) Aluminum alloy heat extrudes replaceable mold cores
CN207071683U (en) A kind of belt pulley shaping tooling
CN206578147U (en) A kind of integrally formed mould of extrusion molding rotary-cut
CN105798545B (en) A kind of great power LED ground insert lamp lamp body precision forging technique
CN206286396U (en) A kind of mould that flash trimming is carried out to the processing and manufacturing of microminiature sealing ring
CN204935201U (en) A kind of external diameter fixture with shrinking escape groove
CN205217660U (en) Expansion tube mould
CN209050926U (en) A kind of molding machine of double skeleton vacuum pump oil sealings
CN106984664A (en) Aluminum alloy heat extrudes replaceable mold cores
CN205763348U (en) A kind of flattening mold
CN206731822U (en) A kind of hard alloy drawing mould
CN211386564U (en) Flanging and reaming die
CN209189608U (en) Formed punch eccentric bushing
CN207806360U (en) A kind of rectangular tube production stretching die
CN206241682U (en) A kind of clamping device
CN210115389U (en) Crimping die of flow guide cup in soybean milk machine
CN210969631U (en) Inner mold core structure and compression mold

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171114

Termination date: 20191019

CF01 Termination of patent right due to non-payment of annual fee