CN206435582U - A kind of inside and outside extrusion die for carrying spiral fin section bar of pipe - Google Patents
A kind of inside and outside extrusion die for carrying spiral fin section bar of pipe Download PDFInfo
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- CN206435582U CN206435582U CN201720048426.3U CN201720048426U CN206435582U CN 206435582 U CN206435582 U CN 206435582U CN 201720048426 U CN201720048426 U CN 201720048426U CN 206435582 U CN206435582 U CN 206435582U
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Abstract
The utility model is related to that a kind of pipe is inside and outside to carry spiral fin profile extrusion die, and it protects model cavity to be spiral shape, and is rotated around the axis of mould, and its cross sectional shape constantly expands from entrance to outlet；Upper model cavity entrance is docked with the outlet of protection model cavity; its cross sectional shape, circle distribution position, size are identical; when protecting model cavity processing; in the entering of mould, export and carry out respectively; then docked to center; upper model cavity first processes the empty knife of cylindrical core rod, end face, resistance to deformation pit and upper mould, then overturns workpiece from inlet face processing cavity remainder；When lower die worker makees band, centre one diameter of processing makees the difference in height of band with die worker under electrode machining than the through hole with small 10 ㎜ of minimum inscribed circle diameter that works in a mold, the empty knife of mould under exit face processing, it is ensured that empty knife position precision and roughness.
Description
Technical field
The present invention relates to a kind of manufacture field of extrusion die, spiral fin section bar is carried inside and outside especially a kind of pipe
Extrusion die.
Background technology
Radiator comes out heat spreader by heat transfer, radiation, convection current, is used for people's production, life, but traditional
The radiator thermal efficiency is low, outward appearance is coarse and crude, heaviness, is progressively eliminated.A kind of Al-alloy heat exchanger of use extrusion forming due to
It is lightweight, it is handsome in appearance, heat exchange efficiency is high and is largely selected.But, it is linear pattern in the fin of these radiators, although work
Skill is simple, the problem of but there is influence rate of heat exchange.Radiator rate of heat exchange with helical heat spreader fin is high, radiating effect
Good, our company declared and obtained the 201310394344.0 of power on 09 03rd, 2013《A kind of aluminium with spiral fin is closed
The production method of golden shaped material of radiator》Section bar of the spiral fin outside pipe can only be produced and processed, it is impossible to inside and outside production pipe
Section bar with spiral fin, especially because carrying the production mould of spiral fin section bar inside and outside pipe because technique is multiple
Miscellaneous, the reason such as technology content and development cost height is researched and developed without producer so far.
The content of the invention
It is an object of the invention to provide the extrusion die that spiral fin section bar is carried inside and outside a kind of pipe, the mould can be squeezed
Pressure pipe inside and outside fin is spiral shaped material of radiator, and mould production method science, machining accuracy is high, good product quality.
The technical solution adopted for the present invention to solve the technical problems is：Inside and outside the pipe that protection mould, upper die and lower die are constituted
With spiral fin profile extrusion die, it is characterized in that protection model cavity is spiral shape, and is revolved around the axis of mould
Turn, its cross sectional shape constantly expands from entrance to outlet；Upper model cavity entrance is docked with the outlet of protection model cavity, its section shape
Shape, circle distribution position, size are all identical, and upper model cavity is made up of spiral shape die cavity section with straight tube shape die cavity section, spiral shape
Die cavity section is located at arrival end, and straight tube shape die cavity section is located at the port of export, and the lower surface of upper mould is provided with resistance to deformation pit；Lower mould is in mould
One larger through hole of center processing, through-hole diameter makees small 10 ㎜ of the minimum inscribed circle diameter of band than lower die worker.
It is 10 °~100 ° around the anglec of rotation of mold axis to protect model cavity.
Upper mould straight tube shape die cavity segment length accounts for the 10%~15% of model cavity total length, and remaining is spiral shape die cavity segment length
Degree.
The windup-degree difference of the windup-degree of the spiral shape die cavity of upper mould and protection model cavity is no more than ± 5%.
The processing method with spiral fin profile extrusion die is inside and outside a kind of pipe：Use the H13 moulds of micronization processes
Has steel via, as blank, blank passes through rough turn, line, drilling, round, numerical control mill, heat treatment, smart car, fine grinding, number after forging
Control finish-milling, electricity are worn the processes such as work band, polishing and are made, and it is characterized in that：
When the 1st, protecting model cavity screw processing, by it from entrance to the cross sectional shape that constantly expands of outlet and around mould
The axis anglec of rotation, to the entering of mould, export and be processed respectively, then dock, mould inclines to center by design program
Oblique certain angle, processes each die cavity and dead band position, and with the clear angle of electric spark, the anglec of rotation and the section of die cavity are examined with model
Shape, then manual amendment remove electric machining vestige, then finish-milling die cavity, removal type intracavitary oxide skin；
2nd, during the processing of upper model cavity, it is ensured that entrance is docked with the outlet of protection model cavity, the core rod in export processing face it is cylindrical with
The resistance to deformation pit of end face and end face, then the straight tube shape die cavity and the upper mould of core rod root with design program export processing face are empty
Knife, finally overturns workpiece from inlet face processing cavity remainder, by the inlet face upset of mould it is angled after, process spiral shell
Spiral cavity for molding part and dead band, then polished form；
3rd, when lower die worker makees band processing, centre one diameter of processing is than small 10 ㎜ of the minimum inscribed circle diameter of work band in a mold
Through hole, it is ensured that lower die worker makees the dimensional accuracy and roughness of band, the tooth form of each radiating fin is examined, with mould under electrode machining
The difference in height of work band, inscribed circle when bonding container is processed according to work band determines work centre, while with the positioning in plane
Point determines the putting position of workpiece, the empty knife of mould under exit face processing, according to empty knife-edge shape using using numerical control mill after computer programming
Processing, it is ensured that empty knife position precision and roughness.
The present invention's is reasonable in design, and processing technology is simply applicable, and what is manufactured is inside and outside crowded with spiral fin section bar
Compression mould, through trial application, the section quality squeezed out is good, and lumber recovery is high.
Brief description of the drawings
1st, Fig. 1 is schematic structural view of the invention.
2nd, Fig. 2 is Fig. 1 left view.
3rd, Fig. 3 is the section bar figure with extrusion process of the present invention.
In figure：1st, mould is protected；2nd, upper mould；3rd, lower mould；4th, the empty knife of lower mould；5th, the empty knife of upper mould；6th, resistance to deformation pit；7th, lower mould
Work band；8th, bonding container；9th, upper model cavity；10th, model cavity is protected；11st, inlet face；12nd, upper die worker makees band.
Embodiment
In figs. 1 to 3, the present invention relates to one kind by protection mould（1）, upper mould（2）, lower mould（3）Carried inside and outside the pipe of composition
Spiral fin profile extrusion die, it protects model cavity（10）For spiral shape, and rotated around the axis of mould, the anglec of rotation
Constantly expanded from entrance to outlet for 10 °~100 ° its cross sectional shapes；Upper model cavity（9）Entrance and protection model cavity（10）Outlet
Docking, its cross sectional shape, circle distribution position, size are all identical, and upper model cavity is the knot that spiral shape is combined with straight tube shape
Structure, straight tube shape die cavity segment length accounts for the 10%~15% of model cavity total length, and remaining is spiral shape die cavity section, spiral shape die cavity section
Arrival end is located at, straight tube shape die cavity section is located at the port of export, upper mould（2）Lower surface is provided with resistance to deformation pit（6）；Lower mould（3）In mould
One larger through hole of tool center processing, through-hole diameter is than small 10 ㎜ of the minimum inscribed circle diameter of work band.The spiral shape type of upper mould
The anglec of rotation of chamber section and the anglec of rotation difference of protection model cavity are no more than ± 5%.
The present invention uses the H13 mould steel of micronization processes via, as blank, blank is by rough turn, line, brill after forging
Hole, round, numerical control mill, heat treatment, smart car, fine grinding, numerical control finish-milling, electricity are worn the processes such as work band, polishing and are made, and can process
Relative to the rotating die cavity of axis so that aluminum alloy materials are at rotation status in initial period, material is passing through work
The difference in height of work band is recycled further to increase rotating tendency when making band, until producing in the pipe for meeting design in addition
There is the section bar of spiral fin.
Protect mould（1）Eight die cavities are designed with, in the plane uniformly, have pressure-bearing bridging to connect between each die cavity, mould is protected
Play and aluminum alloy materials are shunted in advance, change flow trace, and share mould and bear the forward direction from extruder and squeeze
Pressure.Small barrel dliameter extruding machining heavy in section section bar can be used, and plays a part of the upper mould of protection.Protect the cavity design of mould
Into from entrance to the cross sectional shape that constantly expands of outlet, and die cavity around mould axis according to 10 °~100 ° rotations.Adding
Man-hour, from inlet face（11）Process, docked to center respectively with exit face.Using three-shaft linkage numerical control milling machine tool, in each face
While processing cavity, apart from the edge 5mm positions locating and machining point of each die cavity, and the coordinate of each anchor point is recorded,
Used for the positioning of remaining manufacturing procedure.Because die cavity is spiral, even if processing what is then docked respectively using from each face
Processing scheme, the presence in still old processing dead band.Omnipotent rotary table is now needed to use, by mold tilt into certain angle
Degree, then processes each die cavity several times using program.The dead band position of machining, finally using electric machining electric spark into
Type process carries out clear angle, and the anglec of rotation and cross sectional shape of die cavity are tested using model.Increase pincers worker people after electric machining
Work finishing process, removes the vestige that electric machining leaves, and prevents the presence of hardened layer and influences die ＆ mold treatment effect.Die ＆ mold treatment
During need carry out three times tempering, to eliminate internal stress.Finish-milling die cavity process, all oxidations of removal type intracavitary are carried out afterwards
Skin.
Upper mould is similarly designed with eight die cavities, and the core rod that finally shapes of responsible aluminum alloy materials, upper die worker make band
（12）, equally there is pressure-bearing bridging to connect between die cavity.Aluminum alloy materials enter upper model cavity（9）Further extend laterally afterwards,
Flow trace further changes so that material expands to bigger sectional area, is forced until material works by core rod with position
So that aluminum alloy materials shape.Upper model cavity（9）Entrance and protection model cavity（10）Outlet docking, no matter circle distribution position also
It is that cross sectional shape, size are all identical.So that when protecting mould and upper mould binding site significant change does not occur for material flowing therethrough.Upper model
Chamber does the structure that spirality is combined with straight tube shape, is retaining one section of straight die cavity, and spiral shape die cavity apart from the port of export
The windup-degree difference of windup-degree and protection model cavity be no more than ± 5%, prevent material from flowing into after upper mould and occur excessively to reverse
Or the deficiency that reverses the trend, can either way influence section bar become a useful person after dimensional accuracy；The straight die cavity length of upper mould accounts for model
The 10%~15% of chamber total length.First with the core rod of lathe process exit face is cylindrical and end face during the processing of upper mould, and end face is anti-
Deform pit（6）.Using die cavity of the numerical control milling machine tool with program export processing face, respectively using φ 32 and the tool sharpenings of φ 12.
The empty knife of upper mould of mould core portion position root is processed after processing cavity with φ 80X15-R3 dedicated tools（5）.Finally upset workpiece is from entering
The mouth face remaining position of processing cavity.Omnipotent rotary table is reused, the inlet face upset of mould is angled, use number
Control milling machine tool processing cavity spiral position several times.It is machined processing technology of the dead band with reference to protection mould.Finishing after heat treatment
Man-hour, the work band of core rod（12）Difference in height（That is land length）Follow fast flow velocity correspondence casual labourer and make band, slug flow speed correspondence length
Work band.Direction of rotation according to section bar determines that flow velocity speed determines work band length again.Work the round and smooth mistake in the short junction of belt length
Cross.During processing work band 1 is processed using wire cutting according to section bar sectional view:1 copper electrode, then electric spark process use electrode
Work belt surface is finished, is at least processed twice, to ensure work band precision.Reuse sky knife electrode, the length of processing work band
Degree.Electrode needs to make 1/4 toroidal, is easy to electrode to be mutually positioned with workpiece.Band finally work by pincers worker polishing, upper mould
Machine.
Lower mould is designed with bonding container（8）, shelves platform, lower die worker make band（7）, help Liu Jiao, hinder the empty knife of angle and lower mould（4）.
And bonding container（8）Entry design incrementally increases soldering pressure into certain angle of inclination；Shelves platform together with help Liu Jiao, obstruction
The flowing velocity of the material at each position inside the further balancing die in angle, in material formative stage, the work band of upper die and lower die
In correspondence with each other, jointly material forming, the task of setting are undertaken in position.The cylindrical and thickness of lower mould is carried out according to conventional machining mode
Processing, die worker makees band under processing（7）When entreat be processed into a larger through hole in a mold, through-hole diameter is more minimum than work band
Unilateral small 10mm of inscribed circle diameter or so, die deformation is excessive when can so prevent mould finishing work band.Processing work
Need to use slow wire feeding lathe repeatedly to be processed during band, at least accomplish that cutting 1 repaiies 3, to ensure the dimensional accuracy of work band and thick
Rugosity.Work belt shape detects the tooth form of each radiation tooth using inspection template after machining.Then according to 1:1 ratio is cut
Work band difference in height copper electrode, electric spark process uses the work band difference in height of mould under electrode machining, and the length of difference in height is chosen
Principle follows die worker and makees the principle with difference in height.Bonding container（8）Finished using CNC milling machine, surface roughness reaches
More than 1.6um, and the center of workpiece must be determined according to the inscribed circle of work band when processing, while with the positioning in plane
Point determines the putting position of workpiece.The empty knife of mould under exit face processing（4）, after being programmed according to the shape of empty knife using computer software
Numerical control mill machine tooling is used, Integral alloy milling cutter is used during processing.Ensure empty knife position precision and roughness.Whole set of die is adding
In work manufacturing process, it is necessary to get rid of the marks on surface after electric spark, linear cutter, prevent finished surface material from occurring crisp
Change, influence is normally used.
Claims (4)
1. a kind of inside and outside extrusion die for carrying spiral fin section bar of pipe, is made up of protection mould, upper die and lower die, it is characterized in that：
Protection model cavity is spiral shape, and is rotated around the axis of mould, and its cross sectional shape constantly expands from entrance to outlet；Upper model
Chamber entrance is docked with the outlet of protection model cavity, and its cross sectional shape, circle distribution position, size are identical, and upper model cavity is by spiral shape
Die cavity section is constituted with straight tube shape die cavity section, and spiral shape die cavity section is located at its arrival end, and straight tube shape die cavity section is located at its port of export, on
The lower surface of mould is provided with resistance to deformation pit；Lower mould entreats one through hole of processing in a mold, and it is minimum that through-hole diameter makees band than lower die worker
Small 10 ㎜ of inscribed circle diameter.
2. a kind of inside and outside extrusion die for carrying spiral fin section bar of pipe according to claim 1, it is characterized in that：It is described
Protection model cavity around mold axis the anglec of rotation be 10 °~100 °.
3. a kind of inside and outside extrusion die for carrying spiral fin section bar of pipe according to claim 1, it is characterized in that：It is described
Upper mould straight tube shape die cavity segment length account for the 10%~15% of model cavity total length.
4. a kind of inside and outside extrusion die for carrying spiral fin section bar of pipe according to claim 1, it is characterized in that：It is described
Upper mould spiral shape die cavity windup-degree with protection model cavity windup-degree difference be no more than ± 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720048426.3U CN206435582U (en) | 2017-01-17 | 2017-01-17 | A kind of inside and outside extrusion die for carrying spiral fin section bar of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720048426.3U CN206435582U (en) | 2017-01-17 | 2017-01-17 | A kind of inside and outside extrusion die for carrying spiral fin section bar of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206435582U true CN206435582U (en) | 2017-08-25 |
Family
ID=59635697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720048426.3U Withdrawn - After Issue CN206435582U (en) | 2017-01-17 | 2017-01-17 | A kind of inside and outside extrusion die for carrying spiral fin section bar of pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206435582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623474A (en) * | 2017-01-17 | 2017-05-10 | 辽源飞跃工模具有限公司 | Extruding die with interior and exterior of pipe provided with spiral fin proximate matter |
-
2017
- 2017-01-17 CN CN201720048426.3U patent/CN206435582U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623474A (en) * | 2017-01-17 | 2017-05-10 | 辽源飞跃工模具有限公司 | Extruding die with interior and exterior of pipe provided with spiral fin proximate matter |
| CN106623474B (en) * | 2017-01-17 | 2018-10-19 | 辽源飞跃工模具有限公司 | A kind of inside and outside extrusion die for carrying spiral fin proximate matter of pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20181019 |