CN106374183A - Apparatus and method for preparing flange bent waveguide tube by forward cold extrusion method - Google Patents
Apparatus and method for preparing flange bent waveguide tube by forward cold extrusion method Download PDFInfo
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- CN106374183A CN106374183A CN201610847928.2A CN201610847928A CN106374183A CN 106374183 A CN106374183 A CN 106374183A CN 201610847928 A CN201610847928 A CN 201610847928A CN 106374183 A CN106374183 A CN 106374183A
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- cold extrusion
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 22
- 238000005452 bending Methods 0.000 claims description 15
- 239000005435 mesosphere Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 7
- 230000003746 surface roughness Effects 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910001234 light alloy Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- XIVNZHXRIPJOIZ-UHFFFAOYSA-N octadecanoic acid;zinc Chemical compound [Zn].CCCCCCCCCCCCCCCCCC(O)=O XIVNZHXRIPJOIZ-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
- H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/02—Bends; Corners; Twists
Abstract
The invention discloses an apparatus and a method for preparing a flange bent waveguide tube by a forward cold extrusion method. The apparatus comprises a convex mold with a micro clamp, a guiding core rod, and a detachable concave mold which is glidingly matched with the convex mold, wherein a rectangular stepped hole is formed in the convex mold longitudinally; the micro clamp is arranged at the upper part of the rectangular stepped hole; a sinking groove is formed in the top of the detachable concave mold; the convex mold can be glidingly matched with the detachable concave mold through the sinking groove, and can move up and down relative to the detachable concave mold; an arc-shaped bent hole is formed in the detachable concave mold; one end of the arc-shaped bent hole is connected with the rectangular stepped hole through the sinking groove while a sealed type flange cavity is formed in the other end of the rectangular stepped hole; and the guiding core rod passes through one end of the rectangular stepped hole to be matched with the bottom of the flange cavity while the other end is tightly clamped and positioned by the micro clamp. By adoption of the apparatus and the method, the bent flange waveguide tube with strict specified dimensions is obtained through one process, so that the machining process of the bent waveguide tube is simplified, and relatively low roughness of the smooth inner surface of the bent waveguide tube is ensured.
Description
Technical field
The present invention relates to a kind of microwave device manufactures the technology in field, specifically a kind of positive cold extrusion method prepares band
The apparatus and method of flanges bend waveguide.
Background technology
Centimetre, the widely used waveguide of transmission of millimere-wave band energy.Compare coaxial cable, the electromagnetic wave attenuation of waveguide is relatively
Little, transmissible power is larger, and can reach very high index request on electrical property.The feeding network of radar has
Substantial amounts of curved waveguide, the crudy of curved waveguide directly affects the performance indications of radar system.
Manufacture the curved waveguide that sectional dimension change is 0.8 μm less than 0.1mm, inner chamber roughness with the straight wave guide that draws out
Pipe is not only extremely difficult but also cost is high, and the manufacturing process of waveguide bend device is to ensure that the pass that ULTRA-WIDEBAND RADAR is succeeded in developing
Key technology.Waveguide bend is distorted due to being related to secondary operations, cross sectional shape, and three-dimensional transmission network leads to elbow assembly mistake
Many, the processing method of therefore elbow assembly has become as the bottleneck of Transmission system efficiency raising.In order to ensure bending quality, bending
Front needs load inserts or plug in pipe.But there is following drawback in filling bending method: 1. technical process is random strong,
Cannot ensure that the processing quality of elbow member is stable；2. implant or excessively soft lead to cross section distortion excessive as paraffin, or really up to the mark such as
Steel band etc. leads to cavity to scratch, or easily reacts and produce residual such as low-melting alloy with waveguide metal；3. mostly cannot
Complete continuous bend；4. the complicated ridge waveguide bending more difficult particularly minor radius bending of pair cross-section size.
Filling out steel band curved waveguide is a kind of curved waveguide processing method more typically, but this processing technique exist more
Problem, as inaccurate in the size of waveguide after bending, outside tube wall ftractures and inner tubal wall is wrinkling etc..Even if from waveguide bending
Start smoothly curved waveguide at axis, uneven space still occurs, thus leading to waveguide crooked position to produce reflection
Ripple.And, after bending, also will be according to requiring in waveguide one or both ends welded flange, this can cause waveguide to be again deformed again.
Content of the invention
The present invention is directed to deficiencies of the prior art it is proposed that one kind prepares flanged bending with positive cold extrusion method
The apparatus and method of waveguide, can simplify the course of processing of curved waveguide it is ensured that the inner surface of curved waveguide has relatively
Cross sectional shape has the concordance of height to high fineness simultaneously.
The present invention is achieved by the following technical solutions:
The present invention relates to a kind of device preparing flanged curved waveguide with positive cold extrusion method, comprising: with micro clip
The punch of pincers, guiding plug and the divided die being slidably matched with punch, wherein: punch is along being longitudinally provided with rectangular step hole, micro-
Type clamp is arranged at the top in rectangular step hole, and die top can be divided to be provided with deep gouge, and punch is slided with dividing die by deep gouge
Coordinate and with respect to die can be divided to move up and down, die can be divided to be provided with curved bend curved hole, and one end of curved bend curved hole is passed through to sink
Groove is connected with rectangular step hole, and the other end of curved bend curved hole is provided with enclosed flange die cavity；Guiding plug passes through curved bend
Matched with flange cavity bottom in curved hole one end, the other end tightly and is positioned by micro clip clamp.
Described guiding plug is multi-layer sheet stack structure, each laminate in one end of this guiding plug be stacked flat and with flange die cavity
Match in bottom, in the multi-layer sheet of the other end, the height in intermediate layer placed in the middle is higher than remaining each layer, and intermediate layer is adjacent layer
Between be inclined-plane sliding contact.
Surface roughness ra of described guiding plug is 0.050 μm.
The present invention relates to a kind of positive cold extrusion preparation method based on said apparatus, comprise the following steps:
1. it is directed to plug and is laid in can divide in die, then close and obtain complete female mold part, then will moisten in advance
The blank that sliding center is provided with through hole is placed in the deep gouge of die, and guiding plug one end passes through blank to enter the rectangle rank of punch
In terraced hole, the micro clip clamp in rectangular step hole tightly guides plug and is accurately positioned；
2. push the gap that punch makes blank be full of between curved bend curved hole and guiding plug, highly drop in punch full
After sufficient Flange Forming requires, stop pressure, miniature clamp unclamps guiding plug simultaneously；
3. after miniature clamp unclamps guiding plug, rising height, the jag that clamping guiding plug mesosphere board is folded, afterwards
Continue rising height, mesosphere board is folded and extracted out with miniature clamp height lifting；
4. open and can divide die and take out shaping cold-extruded part, then with stripper be directed in plug remaining each laminate fold from
Shape in cold-extruded part and separate, be bent waveguide.
Described blank adopts the commercial-purity aluminium that the trade mark is 1050a, and preferably this blank is through 18 alcohol powder and stearic acid zinc powder
Last prelubrication.
Pour into after described blank is heated in the cylinder that rotating speed is 30r/min, and add 18 alcohol powder, roll 2～
3min, is cooled to room temperature afterwards, adds zinc stearate powder, continues rolling 2～3min, wherein: 18 alcohol powder and stearic acid
The part by weight of zinc powder is 4:1.
The present invention relates to a kind of curved waveguide being prepared based on said method, comprising: swan-neck and and swan-neck
The flange that one end is connected, wherein: swan-neck section radially is rectangle or circle in outside, is rectangle in inner side, bending wave
Conduit inner surface roughness ra scope is 0.1 μm～0.3 μm.
Technique effect
Compared with prior art, the present invention, using the shaping dies that symmetrically can divide, by this operation of positive cold extrusion, realizes
The once-forming processing of flanged curved waveguide, it is to avoid the curved waveguide that conventional bending operation causes damages, and gets rid of again
Abandon and deformed because of the curved waveguide that welded flange causes, improve production efficiency；And curved waveguide is due to cold-extrusion shaping,
Workpiece fiber is continuously smooth, and has flow harden effect, and integrated performance index improves 25～30%；Inner surface is coarse simultaneously
Degree is in 0.1 μm～0.3 μ m, average far below curved waveguide in prior art 0.8 μm of surface roughness.
Brief description
Fig. 1 is processing unit (plant) cross-sectional view in the present invention；
Fig. 2 is positive cold extrusion die structural representation；
Fig. 3 is the structural representation of square-section curved waveguide in embodiment 1；
In figure: (a) is front view, (b) is sectional view；
Fig. 4 is round outside but spuare inside curved waveguide structural representation for embodiment 2 middle section；
In figure: (a) is front view, (b) is sectional view；
In figure: cope match-plate pattern 1, backing plate 2, adapter sleeve 3, punch 4, the first limited block 5, ring-type guide pin bushing 6, guide pillar 7, die 8, fall
Put taper connection block 9, die holder 10, twisted seat 11, pin 12, push rod 13, mold opening device 14, the second limited block 15, blank 16, guiding plug
17th, clamping cylinder 18, oil cylinder controller 19, locating piece 20, miniature clamp 21, flange die cavity 22, mesosphere board fold 23.
Specific embodiment
Below embodiments of the invention are elaborated, following embodiments are entered under premised on technical solution of the present invention
Row is implemented, and gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following realities
Apply example.The change of curved waveguide pipe size can be realized by adjusting the size of die, punch and guiding plug.
Embodiment 1
As shown in Fig. 2 the present embodiment is related to a kind of device preparing flanged curved waveguide with positive cold extrusion method, bag
Include: punch 4, guiding plug 17 and die 8, wherein: along being longitudinally provided with rectangular step hole, rectangular step hole top is provided with punch 4
Miniature clamp 21；Die 8 top can be divided to be provided with deep gouge and punch 4 is slidably matched with dividing the monolateral gap 0.1mm of die 8, so
Can not can ensure that longitudinal burr, and move up and down with respect to die 8；Die 8 is provided with curved bend curved hole, and the one of curved bend curved hole
End is connected with rectangular step hole by deep gouge, and the other end of curved bend curved hole is provided with enclosed flange die cavity 22；Guiding plug
17 pass through curved bend curved hole, and matched with flange die cavity 22 bottom in one end, the other end is clamped and positioned by miniature clamp 21.
Described miniature clamp 21 is provided with clamping cylinder 18 and locating piece 20, is realized by clamping cylinder 18 hydraulic-driven
Clamping and positioning to guiding plug 17 and the extraction that mesosphere board is folded with 23；Described locating piece 20 is fixed on rectangular step hole
In；Described clamping cylinder 18 is fixed on locating piece 20, and bottom is connected with miniature clamp 21, simultaneously clamps on oil cylinder 18 and is provided with
Oil cylinder controller 19, realizes the digital process circuit to clamping cylinder 18 and controls.
Described punch 4 and die 8 material are cold die steel cr12mov, heat treatment hardness hrc58～62.
As shown in figure 1, described die 8 is arranged in inverted-cone shape contiguous block 9, semi-symmetric divide die including two；
The described top of die 8 is flushed with the top of inverted-cone shape contiguous block 9 and adopts forge piece of step type structure to coordinate, and is easy to inverted-cone shape
Contiguous block 9 grips to die 8.
Described inverted-cone shape contiguous block 9 is arranged in die holder 10, along die holder 10 axis be set to symmetrically can to divide two
Half structure, top is higher than die holder 10 upper surface simultaneously；The baseplane of described inverted-cone shape contiguous block 9 is fixed with twisted seat 11, twists
On seat 11, push rod 13 is connected with by pin 12, is easy to jack-up inverted-cone shape contiguous block 9 after cold-extrusion shaping terminates；Described falls
Put taper connection block 9 left and right sides and be arranged with mold opening device 14, coordinate with push rod 13, be provided commonly for separate inverted-cone shape contiguous block
9 and die 8, take out and shape cold-extruded part.
The top of described punch 4 is provided with inverted-cone shape exposed junction, the lower surface of inverted-cone shape exposed junction and inverted-cone shape
The top of contiguous block 9 flushes, and inverted-cone shape exposed junction is fixedly connected with cope match-plate pattern 1 by adapter sleeve 3.
It is provided with backing plate 2, described cope match-plate pattern 1 lower plane is connected with inverted-cone shape between described adapter sleeve 3 and cope match-plate pattern 1
It is provided with the second limited block 15 between block 9 to limit upper and lower mould die height it is ensured that punch travel, also ensure that cold-extruded part size；
It is provided with the first limited block 5 to limit die opening angle between the second described limited block 15 and die holder 10.
Described cope match-plate pattern 1 is connected with die holder 10 by guiding mechanism.
Described guiding mechanism includes ring-type guide pin bushing 6 and guide pillar 7, is joined with ball between described ring-type guide pin bushing 6 and guide pillar 7
Close, its gap is 0/0；Described ring-type guide pin bushing 6 is fixed on cope match-plate pattern 1；Described guide pillar 7 is arranged on die holder 10 outer side surface
On.
By thickness of slab, the tb9 titanium alloy sheet for 1mm is stacked described guiding plug 17, the surface roughness of guiding plug 17
Ra is 0.050 μm.
It is ti 3al 8v 6cr 4mo 4zr that described tb9 titanium alloy sheet folds nominal composition, its room-temperature property: tension is strong
Degree σb=795mpa is it is stipulated that permanent elongation stress σr0.2=760mpa, percentage elongation δ5=15%, bend angles alpha=180 °；Described
Tb9 titanium alloy sheet has excellent Elastoplastic Performances in Simulation, therefore the guiding plug 17 being made up of tb9 titanium alloy sheet can multipass rectangle
Shoulder hole and curved bend curved hole, deform and recover life size again it is thus possible to reuse.
Preferably, described guiding plug 17 folds the rectangular cylinder of composition for some laminates, mesosphere board fold 23 one end and
Remaining each laminate is stacked flat and is matched with flange die cavity 22 bottom, and other end height is higher than that 15mm folded by remaining each laminate, middle
Laminate fold 23 be adjacent laminate fold be slidably matched.
Preferably, described mesosphere board is folded the 23 end points line angles folded with its biside plate and is 10 ', and sprays ultra-fine
Graphite powder lubricates, to extract out.
The present embodiment is related to the positive cold extrusion preparation method of said apparatus, comprises the following steps:
1. it is directed to plug 17 and is laid in can divide in die, then close and separately can divide die, obtain complete die 8, then
The blank 16 that the center of prelubrication is provided with through hole is placed in the deep gouge of die 8, and guiding plug 17 one end passes through blank 16
Enter in rectangular step hole, the miniature clamp 21 clamping guiding plug 17 in rectangular step hole is simultaneously accurately positioned.
2. other parts including die holder 10 and cope match-plate pattern 1 for the assembling, and said apparatus are arranged on double dynamic light-alloys
On hydraulic extrusion press 2yjq 5 table top；Push cope match-plate pattern 1 make blank 16 be full of curved bend curved hole and guiding plug 17 between
Gap, after punch 4 height drops to and meets Flange Forming requirement, touches the second limited block 15, stops pressure, miniature clamp simultaneously
21 unclamp guiding plug 17.
3. after miniature clamp 21 unclamps guiding plug 17, hoisting depth, clamping mesosphere board folds 23 jag, afterwards
Continue to rise continuous hoisting depth with press ram, mesosphere board is folded 23 and extracted out with the height lifting of miniature clamp 21.
4. divide die by mold opening device 14 separation two is semi-symmetric, take out and shape cold-extruded part, then be directed to stripper
In plug 17, remaining each laminate is folded and is separated from shaping cold-extruded part, is bent waveguide.
Preferably, its clamped height on guiding plug 17 for the described miniature clamp 21 is 5～10mm.
Described curved waveguide includes swan-neck and the flange being connected with swan-neck one end, wherein: swan-neck is radially
Section be rectangle in outside and inner side, flange shape be circle.
As shown in Figure 3 it is preferable that the size of this curved waveguide is as follows: structure height h=80mm, bending radius r=
70mm, flange thickness h1=5mm, wall thickness m=1.5mm, floor projection length l=95mm, flange outer diameter d=50mm.
Described curved waveguide inner surface roughness ra scope is 0.1 μm～0.3 μm.
Embodiment 2
As shown in figure 4, the present embodiment is with the difference of embodiment 1, described curved bend curved hole section radially is
Circle, the curved waveguide bending tube section preparing is round outside but spuare inside it is preferable that size is as follows: structure height h=
63mm, bending radius r=50mm, flange thickness h1=5mm, square-section size n × n=10mm × 10mm, extent of horizontal projection
Degree l=65mm, flange outer diameter d=30mm.
Claims (10)
1. a kind of positive cold extrusion method prepares the device of flanged curved waveguide it is characterised in that including: with miniature clamp
Punch, guiding plug and the divided die that is slidably matched with punch, wherein: punch is along being longitudinally provided with rectangular step hole, miniature
Clamp is arranged at the top in rectangular step hole, and die top can be divided to be provided with deep gouge, and punch passes through deep gouge, and slip is joined with dividing die
Close and with respect to die can be divided to move up and down, die can be divided to be provided with curved bend curved hole, and deep gouge is passed through in one end of curved bend curved hole
Connect with rectangular step hole, the other end of curved bend curved hole is provided with enclosed flange die cavity；Guiding plug passes through arc-shaped bend
Matched with flange cavity bottom in hole one end, the other end tightly and is positioned by micro clip clamp.
2. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 1, is characterized in that, described
Die be arranged in inverted-cone shape contiguous block, semi-symmetric divide die including two；The top of described die is bored with being inverted
The top of shape contiguous block flushes and adopts forge piece of step type structure to coordinate.
3. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 2, is characterized in that, described
Inverted-cone shape contiguous block be arranged in die holder, top is higher than die holder upper surface, and the axis along die holder is set to symmetrically can divide
Two halves structure；The baseplane of described inverted-cone shape contiguous block is fixed with twisted seat, and twisted seat has push rod；Described inversion cone
The shape contiguous block left and right sides is arranged with mold opening device；It is arranged with the inverted-cone shape contiguous block left and right sides and open for limiting die
First limited block of angle of release degree.
4. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 1 or 3, is characterized in that,
The top of described punch is provided with inverted-cone shape exposed junction, and inverted-cone shape exposed junction is fixed in cope match-plate pattern by adapter sleeve；Institute
It is provided with the second limited block entering die depth for limiting punch between the cope match-plate pattern lower plane stated and inverted-cone shape contiguous block,
It is provided with backing plate, described cope match-plate pattern is connected with die holder by guiding mechanism between described adapter sleeve and cope match-plate pattern.
5. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 4, is characterized in that, described
Guiding mechanism include ring-type guide pin bushing and guide pillar, use ball engagement between described ring-type guide pin bushing and guide pillar, its gap be 0/0；
The inner side of described ring-type guide pin bushing is connected with the second limited block, the first limited block and die shoe successively along longitudinal；Described guide pillar
It is arranged on die holder outer side surface.
6. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 1, is characterized in that, described
Miniature clamp be provided with clamping cylinder and locating piece；Described locating piece is fixed in rectangular step hole；Described clamping oil
Cylinder is fixed on locating piece, and bottom is connected with miniature clamp, simultaneously clamps on oil cylinder and is provided with oil cylinder controller.
7. the device preparing flanged curved waveguide with positive cold extrusion method according to claim 1, is characterized in that, described
Guiding plug be multilamellar tb9 titanium alloy sheet stack structure, each laminate in one end of this guiding plug be stacked flat and with flange-type bottom of chamber
Portion matches, in the multi-layer sheet of the other end height in intermediate layer placed in the middle be higher than remaining each layer, and intermediate layer be adjacent layer it
Between be inclined-plane sliding contact.
8. a kind of positive cold extrusion preparation method based on the device described in any of the above-described claim it is characterised in that include with
Lower step:
1. it is directed to plug and is laid in can divide in die, then close and obtain complete female mold part, then by prelubrication
The blank that center is provided with through hole is placed in the deep gouge of die, and guiding plug one end passes through blank to enter the rectangular step hole of punch
In, the micro clip clamp in rectangular step hole tightly guides plug and is accurately positioned；
2. push the gap that punch makes blank be full of between curved bend curved hole and guiding plug, highly drop to, in punch, the method for satisfaction
After blue forming requirements, stop pressure, miniature clamp unclamps guiding plug simultaneously；
3. miniature clamp unclamp guiding plug after, rising height, clamping guiding plug mesosphere board fold jag, afterwards with
Forcing press top shoe continues to lift up height, and mesosphere board is folded and extracted out with miniature clamp height lifting；
4. open and can divide die and take out shaping cold-extruded part, then be directed to remaining each laminate in plug with stripper and fold from shaping
Separate in cold-extruded part, be bent waveguide.
9. the method that flanged curved waveguide is prepared in positive cold extrusion according to claim 8, is characterized in that, described hair
Pour into after base is heated in the cylinder that rotating speed is 30r/min, and add 18 alcohol powder, roll 2～3min, be cooled to room afterwards
Temperature, adds zinc stearate powder, continues rolling 2～3min, wherein: the part by weight of 18 alcohol powder and zinc stearate powder is
4:1.
10. the curved waveguide that a kind of method according to claim 8 or claim 9 prepares is it is characterised in that include bending
Pipe and the flange being connected with swan-neck one end, wherein: swan-neck section radially is rectangle or circle in outside, in inner side is
Rectangle, curved waveguide inner surface roughness ra scope is 0.1 μm～0.3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847928.2A CN106374183B (en) | 2016-09-23 | 2016-09-23 | Flanged bending waveguide tube based on positive cold extrusion method and preparation device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610847928.2A CN106374183B (en) | 2016-09-23 | 2016-09-23 | Flanged bending waveguide tube based on positive cold extrusion method and preparation device and method thereof |
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| Publication Number | Publication Date |
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| CN106374183A true CN106374183A (en) | 2017-02-01 |
| CN106374183B CN106374183B (en) | 2021-07-06 |
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ID=57898151
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610847928.2A Active CN106374183B (en) | 2016-09-23 | 2016-09-23 | Flanged bending waveguide tube based on positive cold extrusion method and preparation device and method thereof |
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Denomination of invention: Curved waveguide tube with flange based on positive cold extrusion method and its preparation device and method Effective date of registration: 20231019 Granted publication date: 20210706 Pledgee: Meixi Branch of Zhejiang Anji Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG SHENJI TITANIUM INDUSTRY Co.,Ltd. Registration number: Y2023330002372 |
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