CN105436404B - A kind of wax-pattern compacting tool set of hollow thin-wall part and preparation method thereof - Google Patents
A kind of wax-pattern compacting tool set of hollow thin-wall part and preparation method thereof Download PDFInfo
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- CN105436404B CN105436404B CN201510779490.4A CN201510779490A CN105436404B CN 105436404 B CN105436404 B CN 105436404B CN 201510779490 A CN201510779490 A CN 201510779490A CN 105436404 B CN105436404 B CN 105436404B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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Abstract
A kind of wax-pattern compacting tool set of hollow thin-wall part of the present invention and preparation method thereof, for being molded hollow thin-wall part wax-pattern, described mould includes fulcrum bearing, lower mould is installed above fulcrum bearing, core is provided with lower mould, mould is correspondingly arranged on lower mould, mould and rear mold before being also correspondingly arranged on lower mould, the preceding mould and rear mold can descend mould to slide back and forth relatively, the upper mould, preceding mould, rear mold, it is lower to enclose that to set the cavity to be formed corresponding with hollow thin-wall part shape prepared by needs between mould and core, lower mould side offers casting mouth, casting mouth connects with the cavity, ejecting mechanism is additionally provided with below the lower mould.Using upper and lower, forward and backward carry out parting, the part of high-precision size is formed, hand-rail type cam ejecting mechanism can control ejection speed according to the situation of wax-pattern, both ensure that wax-pattern smoothly takes out from die mould, can reduce wax-pattern deformation again；The casting that the wax-pattern suppressed using the mould of the present invention is produced has been installed use, is worked well.
Description
Technical field：
The present invention relates to engine Investment casting technology field, and in particular to a kind of wax-pattern pressing die of hollow thin-wall part
Tool and preparation method thereof.
Background technology：
Thin wall component in aero-engine, wall thickness is relatively thin and wall unevenness, complicated, and alloy material is that high temperature closes
Gold, such as the skeleton of one of strength member as aero-engine, belong to complicated, hollow, thin-wall special-shaped structural member, are aviations
The important load part of engine, dimension precision requirement is high, and manufacturing process is complicated, and wall unevenness is even, and casting technique difficulty is very big,
By mould suppress with part corresponding to wax-pattern, corresponding casting is then prepared by the wax-pattern prepared, and then make phase
The part answered, to meet the needs of assembling.In order to preferably coordinate engine assembly, it is proposed that a kind of new skeleton knot
Structure, this skeleton structure need to be directed to and develop adaptable wax-pattern compacting tool set.
The content of the invention：
It is an object of the invention to provide a kind of wax-pattern compacting tool set of hollow thin-wall part and preparation method thereof, suppresses size
And the wax-pattern that surface quality is qualified, and then form high-precision skeleton casting.
To achieve the above object, the present invention uses following technical scheme：
A kind of wax-pattern compacting tool set of hollow thin-wall part provided by the invention, for being molded hollow thin-wall part wax-pattern,
The hollow complex thin-walled parts include segmental arc, and arc segment trailer is provided with cylinder, and segmental arc front portion offers U-lag,
Notch both sides cell wall is flared out, and segmental arc section body is provided with two bearings, and two bearing lower ends are provided with the first groove, the mould
Tool includes fulcrum bearing, is provided with lower mould above fulcrum bearing, core is provided with lower mould, mould, lower mould are correspondingly arranged on lower mould
On be also correspondingly arranged on before mould and rear mold, the preceding mould and rear mold mould can be descended to slide back and forth relatively, the upper mould, preceding mould, rear mold,
Lower to enclose that to set the cavity to be formed corresponding with hollow thin-wall part shape prepared by needs between mould and core, lower mould side offers note
Wax mouth, casting mouth are connected with the cavity, and ejecting mechanism is additionally provided with below the lower mould；The core include soluble core and
Ceramic core, soluble core and ceramic core cooperatively form the U groove structure that segmental arc front portion opens up.
The soluble core material is polyethylene glycol.
The preceding mould and rear mold are symmetrical structure.
The upper mould both sides are also respectively provided with latch segment, and the latch segment is clapboard, and upper mould is locked.
The ejecting mechanism includes top plate, and top plate both ends are positioned on the L-shaped step surface that fulcrum bearing inwall opens up, under top plate
Side is provided with cam, and cam both ends, which extend, to be formed protuberance and be inserted in fulcrum bearing side wall, and the protuberance end of wherein side passes through
Fulcrum bearing side wall, and affixed driver plate one end, the driver plate other end are provided with handle, and handle drives driver plate to rotate, protuberance
Driven by driver plate, and then the rotation with moving cam, push rod is provided with top plate, ejection hole, cam are correspondingly arranged on lower mould
Top plate is driven to move upwards, push rod ejects wax part through ejection hole, and release link is additionally provided with push rod fixed plate.
Push rod fixed plate is also connected with the top plate, push rod fixed plate is sleeved on push rod bottom.
Pass through nut check between the protuberance and driver plate.
The upper surface of the lower mould offers the first groove, and preceding mould and rear mold lower surface are correspondingly connected with tenon bar, under tenon bar
Portion is slidably connected to first groove, and the first groove both sides of the lower mould are also respectively provided with boss, under preceding mould and rear mold
End face is correspondingly arranged on the second groove, and second groove is engaged with boss, spacing to above-mentioned preceding mould and rear mold progress, described
Preceding mould and rear mold can descend mould to slide back and forth relatively.
The method that hollow thin-wall part wax-pattern is prepared using the wax-pattern compacting tool set of above-mentioned hollow thin-wall part, specific steps
It is as follows：
The first step：Mould is placed on the table, core is vertically placed on lower mould, forward and backward die button is closed, then will
Upper mould is fastened on lower mould and locked；
Second step：Wax liquor is injected into casting mouth, is enclosed between the upward mould of wax liquor, preceding mould, rear mold, lower mould and core and sets to be formed
Cavity in be filled, pressurize certain time；
3rd step：Mould in unlatching, forward and backward mould is slided, then start ejecting mechanism and eject wax part, take out wax part；
4th step：The wax part suppressed is placed in the groove for containing water purification, dissolves away soluble core, make soluble core from wax part
Slough, obtain required wax-pattern.
Dwell time 120s~150s in the second step, Pressure Casting 1.4MPa~1.6MPa, 66 DEG C of wax liquid temperature~
72℃。
Beneficial effects of the present invention：Mould generally uses upper and lower, forward and backward carry out parting, forms the zero of high-precision size
Part, the hand-rail type cam ejecting mechanism of setting overcome such wax-pattern molding difficult problem, can controlled according to the situation of wax-pattern
Speed is ejected, had both ensured that wax-pattern smoothly took out from die mould, wax-pattern deformation can be reduced again, use mold process high-quality and high-efficiency, improved
Dimensional accuracy；Person easy to operation is operated, and reduces operation difficulty, improves production efficiency；The present invention is applied to multiple models
The die mould of complex structural member skeleton wax-pattern prepare, the casting that the wax-pattern suppressed using the mould of the present invention is produced has been installed and made
With working well, economic benefit is huge.
Brief description of the drawings：
Fig. 1 is the structural representation of hollow thin-wall part；
Fig. 2 is the front view of the wax-pattern compacting tool set of hollow thin-wall part；
Fig. 3 is the side view of the wax-pattern compacting tool set of hollow thin-wall part；
Fig. 4 is that the wax-pattern compacting tool set of hollow thin-wall part removes the top view after upper mould；
Fig. 5 is that the wax-pattern compacting tool set of hollow thin-wall part removes the structural representation after upper mould；
Fig. 6 be molding after ejecting mechanism molding when structure diagram；
Fig. 7 is the wax-pattern schematic diagram being removed from the molds；
Fig. 8 is to take off the wax-pattern schematic diagram after soluble core；
Fig. 9 is the structural representation of upper mould；
Figure 10 is the structural representation of rear mold；
Figure 11 is the structural representation of core；
Figure 12 is the diagrammatic cross-section of the wax-pattern compacting tool set front view of hollow thin-wall part；
Figure 13 is the diagrammatic cross-section of the wax-pattern compacting tool set left view of hollow thin-wall part；
1- segmental arcs, 2- cylinders, 3-U shape grooves, 4- segmental arc section bodies, 5- bearings, the grooves of 6- first, 7- fulcrum bearings, 8-
Lower mould, 9- cores, 10- soluble cores, 11- ceramic cores, the upper moulds of 12-, mould before 13-, 14- rear molds, 15- casting mouths, 16- lockings
Block, 17- top plates, 18- cams, 19- protuberances, 20- driver plates, 21- handles, 22- push rod fixed plates, 23- push rods, 24- reset
Bar, 25- nuts, the grooves of 26- first, 27- tenon bars, 28- boss, the grooves of 29- second, 30- pins, 31- ejections hole, 32- wax parts,
33- wax-patterns, 34- pins.
Embodiment：
With reference to embodiment, the present invention is described in further detail.
According to Fig. 1~Figure 13, a kind of wax-pattern compacting tool set of hollow thin-wall part, for being molded hollow thin-wall part
Wax-pattern, the hollow complex thin-walled parts include segmental arc 1, and arc segment trailer is provided with cylinder 2, and segmental arc front portion offers
U-lag 3, notch both sides cell wall are flared out, and segmental arc section body 4 is provided with two bearings 5, and the lower end of two bearing 5 is provided with first
Groove 6, the mould include fulcrum bearing, and the top of fulcrum bearing 7 is provided with lower mould 8, are provided with core 9 on lower mould 8, right on lower mould 8
Mould 12 should be provided with, mould 13 and rear mold 14, the preceding mould 13 and rear mold 14 can descend mould relatively before being also correspondingly arranged on lower mould 8
8 slide back and forth, and are enclosed between the upper mould 12, preceding mould 13, rear mold 14, lower mould 8 and core 9 and set what the cavity to be formed was prepared with needs
Hollow thin-wall part shape is corresponding, and the lower side of mould 8 offers casting mouth 15, and casting mouth 15 connects with the cavity, the lower mould 8
Lower section is additionally provided with ejecting mechanism；The core 9 includes soluble core 10 and ceramic core 11, soluble core 10 and ceramic core
11 cooperatively form the U groove structure that segmental arc front portion opens up.
The material of soluble core 10 is polyethylene glycol.
The preceding mould 13 and rear mold 14 are symmetrical structure.
The both sides of upper mould 12 are also respectively provided with latch segment 16, and the latch segment 16 is clapboard, and upper mould 12 is carried out
Locking.
The ejecting mechanism includes top plate 17, and the both ends of top plate 17 are positioned on the L-shaped step surface that the inwall of fulcrum bearing 7 opens up,
The lower section of top plate 17 is provided with cam 18, the both ends of cam 18, which extend, to be formed protuberance 19 and be inserted in fulcrum bearing side wall, wherein side
Protuberance end passes through fulcrum bearing side wall, and the one end of affixed driver plate 20, the other end of driver plate 20 are provided with handle 21, handle 21
Driver plate 20 is driven to rotate, protuberance 19 is driven by driver plate 20, and then with the rotation of moving cam 18, top is provided with top plate 17
Bar 23, ejection hole 31 is correspondingly arranged on lower mould 8, cam 18 drives top plate 17 to move upwards, and push rod 23 is through ejection hole by wax
Part 32 is ejected, and release link 24 is additionally provided with push rod fixed plate 22.
Push rod fixed plate 22 is also connected with the top plate 17, push rod fixed plate 22 is sleeved on the bottom of push rod 23, to push rod
Play fixation.
Locked between the protuberance 19 and driver plate 20 by nut 25.
The upper surface of the lower mould 8 offers the first groove 26, and preceding mould 13 and the lower surface of rear mold 14 are correspondingly connected with tenon bar
27, the lower slide of tenon bar 27 is connected to first groove 26, and the first groove both sides of the lower mould 8 are also respectively provided with boss
28, preceding mould 13 and the lower surface of rear mold 14 are correspondingly arranged on the second groove 29, and second groove 29 is engaged with boss 28, to upper
Mould 13 and rear mold 14 are carried out spacing before stating, and the preceding mould 13 and rear mold 14 can descend mould 8 to slide back and forth relatively.
The latch segment 16 and upper mould 12, pass through screw 30 and the connection fastening of pin 34 between lower mould 8 and fulcrum bearing 7.
The method that hollow thin-wall part wax-pattern is prepared using the wax-pattern compacting tool set of above-mentioned hollow thin-wall part, specific steps
It is as follows：
The first step：Mould is placed on the table, core 9 is vertically placed on lower mould 8, forward and backward die button is closed, then
Upper mould 12 is fastened on lower mould 8 and locked；
Second step：Inject wax liquor into casting mouth 15, the upward mould 12 of wax liquor, preceding mould 13, rear mold 14, lower mould 8 and core 9 it
Between enclose to set in the cavity to be formed and be filled, pressurize certain time；
3rd step：Mould 12 in unlatching, forward and backward mould is slided, then start ejecting mechanism and eject wax part 32, take out wax part；
4th step：The wax part suppressed is placed in the groove for containing water purification, dissolves away soluble core 10, make soluble core from wax part
In slough, obtain required wax-pattern 33.
Dwell time 120s~150s in the second step, Pressure Casting 1.4MPa~1.6MPa, 66 DEG C of wax liquid temperature~
72℃。
When depoling processing is carried out in the 4th step water is changed every 6h~8h.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
The present invention is described in detail with reference to above-described embodiment for pipe, those of ordinary skills in the art should understand that：Still may be used
Modified or equivalent substitution with the embodiment to the present invention, and repaiied without departing from any of spirit and scope of the invention
Change or equivalent substitution, it all should cover among present claims scope.
Claims (8)
- A kind of 1. wax-pattern compacting tool set of hollow thin-wall part, for being molded hollow thin-wall part wax-pattern, the hollow thin-wall zero Part includes segmental arc, and arc segment trailer is provided with cylinder, and segmental arc front portion offers U-lag, and notch both sides cell wall is to both sides Outer, segmental arc section body is provided with two bearings, and two bearing lower ends are provided with the first groove, it is characterised in that：The mould bag Fulcrum bearing is included, lower mould is installed above fulcrum bearing, core is provided with lower mould, mould is correspondingly arranged on lower mould, is gone back on lower mould Mould and rear mold, the preceding mould and rear mold can descend mould to slide back and forth relatively before being correspondingly arranged on, the upper mould, preceding mould, rear mold, lower mould Enclose that to set the cavity to be formed corresponding with hollow thin-wall part shape prepared by needs between core, lower mould side offers casting Mouthful, casting mouth is connected with the cavity, and ejecting mechanism is additionally provided with below the lower mould, and the ejecting mechanism includes top plate, top Plate both ends are positioned on the L-shaped step surface that fulcrum bearing inwall opens up, and are provided with cam below top plate, cam both ends extend to be formed it is prominent Go out portion and be inserted in fulcrum bearing side wall, the wherein protuberance end of side passes through fulcrum bearing side wall, and affixed driver plate one end, transmission The plate other end is provided with handle, and handle drives driver plate to rotate, and protuberance is driven by driver plate, and then the rotation with moving cam, Push rod is provided with top plate, ejection hole is correspondingly arranged on lower mould, cam driven top plate moves upwards, and push rod will through ejection hole Wax part is ejected, and release link is additionally provided with push rod fixed plate；The core includes soluble core and ceramic core, soluble core and Ceramic core cooperatively forms the U groove structure that segmental arc front portion opens up.
- A kind of 2. wax-pattern compacting tool set of hollow thin-wall part according to claim 1, it is characterised in that：The soluble type Core material is polyethylene glycol.
- A kind of 3. wax-pattern compacting tool set of hollow thin-wall part according to claim 1, it is characterised in that：The preceding mould and Rear mold is symmetrical structure.
- A kind of 4. wax-pattern compacting tool set of hollow thin-wall part according to claim 1, it is characterised in that：The upper mould two Side is also respectively provided with latch segment, and the latch segment is clapboard, and upper mould is locked.
- A kind of 5. wax-pattern compacting tool set of hollow thin-wall part according to claim 1, it is characterised in that：The protuberance Pass through nut check between driver plate.
- A kind of 6. wax-pattern compacting tool set of hollow thin-wall part according to claim 1, it is characterised in that：The lower mould Upper surface offers the first groove, and preceding mould and rear mold lower surface are correspondingly connected with tenon bar, and tenon article lower slide is connected to described One groove, the first groove both sides of the lower mould are also respectively provided with boss, and preceding mould and rear mold lower surface are correspondingly arranged on second Groove, second groove are engaged with boss, above-mentioned preceding mould and rear mold are carried out it is spacing, the preceding mould and rear mold can relatively under Mould slides back and forth.
- 7. hollow complex thin-walled is prepared using the wax-pattern compacting tool set of the hollow thin-wall part described in claim 1-6 any one The method of structural member wax-pattern, it is characterised in that：Comprise the following steps that：The first step：Mould is placed on the table, core is vertically placed on lower mould, forward and backward die button is closed, then by upper mould Fasten on lower mould and lock；Second step：Wax liquor is injected into casting mouth, is enclosed between the upward mould of wax liquor, preceding mould, rear mold, lower mould and core and sets the sky to be formed It is filled in chamber, pressurize certain time；3rd step：Mould in unlatching, forward and backward mould is slided, then start ejecting mechanism and eject wax part, take out wax part；4th step：The wax part suppressed is placed in the groove for containing water purification, dissolves away soluble core, soluble core is taken off from wax part Go, obtain required wax-pattern.
- 8. according to the method for claim 7, it is characterised in that：Dwell time 120s~150s, pressure injection in the second step Pressure 1.4MPa~1.6MPa, 66 DEG C~72 DEG C of wax liquid temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779490.4A CN105436404B (en) | 2015-11-13 | 2015-11-13 | A kind of wax-pattern compacting tool set of hollow thin-wall part and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779490.4A CN105436404B (en) | 2015-11-13 | 2015-11-13 | A kind of wax-pattern compacting tool set of hollow thin-wall part and preparation method thereof |
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| CN105436404A CN105436404A (en) | 2016-03-30 |
| CN105436404B true CN105436404B (en) | 2018-01-16 |
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| CN106424549A (en) * | 2016-10-24 | 2017-02-22 | 张晓光 | Multi-pipe joint part investment casting mold |
| CN107116183B (en) * | 2017-05-10 | 2019-12-24 | 钢铁研究总院 | Method for preparing complex hollow cavity casting by matching ceramic core and soluble core |
| CN107626887B (en) * | 2017-09-20 | 2020-02-21 | 北京星航机电装备有限公司 | Method for forming wax mold with interlayer cavity in middle |
| CN108723296B (en) * | 2018-05-25 | 2019-11-08 | 保定风帆精密机械科技有限公司 | A kind of manufacturing method in Powered Propulsion middle section peculiar to vessel |
| CN110394419B (en) * | 2019-07-25 | 2024-03-22 | 宁夏苏宁新能源设备有限公司 | Vertical casting mould of C type groove |
| CN110640081B (en) * | 2019-09-27 | 2021-08-06 | 中国航发南方工业有限公司 | Forming process method of thin-wall sheet wax mould and thin-wall sheet wax mould |
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| CN204159817U (en) * | 2014-09-04 | 2015-02-18 | 山东永和精密金属有限公司 | For the full-automatic dewax mould of processing automobile engine spare and accessory parts |
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| JP2001334348A (en) * | 2000-05-25 | 2001-12-04 | Nippo Valve Co Ltd | Method or manufacturing wax pattern for manufacturing hollow parts |
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|---|---|---|---|---|
| CN103567382A (en) * | 2012-07-27 | 2014-02-12 | 大田精密工业股份有限公司 | Golf club head wax mould with exhaust structure |
| CN103331413A (en) * | 2013-06-09 | 2013-10-02 | 沈阳黎明航空发动机(集团)有限责任公司 | Automatic mold stripping module of adjustment sheet |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |