CN105436404A - Wax mold pressing die for hollow thin-wall part and preparation method of wax mold pressing die - Google Patents
Wax mold pressing die for hollow thin-wall part and preparation method of wax mold pressing die Download PDFInfo
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- CN105436404A CN105436404A CN201510779490.4A CN201510779490A CN105436404A CN 105436404 A CN105436404 A CN 105436404A CN 201510779490 A CN201510779490 A CN 201510779490A CN 105436404 A CN105436404 A CN 105436404A
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- wax
- counterdie
- wall part
- die body
- hollow thin
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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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- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a wax mold pressing die for a hollow thin-wall part and a preparation method of the wax mold pressing die. The pressing die is used for forming a wax mold for the hollow thin-wall part. The die comprises a supporting base. A lower die body is installed on the upper portion of the supporting base. A die core is arranged on the lower die body. An upper die body is correspondingly arranged on the lower die body. A front die body and a rear die body are further correspondingly arranged on the lower die body. The front die body and the rear die body can slide front and back relative to the lower die body. The shape of a cavity confined among the upper die body, the front die body, the rear die body, the lower die body and the die core in an enclosed mode corresponds to that of the hollow thin-wall part needing to be prepared. A wax filling opening is formed in one side of the lower die body. The wax filling opening is communicated with the cavity. An ejection mechanism is further arranged on the lower portion of the lower die body. Parting is conducted in the upward, downward, forward and backward directions, so that the high-precision-size part is formed; the hand-shaken cam ejection mechanism can control the ejection speed according to the condition of the wax mold, it is ensured that the wax mold is taken out from the pressing die smoothly, and deformation of the wax mold is reduced. Castings produced through the wax mold pressed by the die are installed for usage, and the effect is good.
Description
Technical field:
The present invention relates to engine Investment casting technology field, be specifically related to wax-pattern compacting tool set of a kind of hollow thin-wall part and preparation method thereof.
Background technology:
Thin wall component in aero-engine, thinner and the wall unevenness of wall thickness, complex structure, alloy material is high temperature alloy, such as the skeleton of one of the strength member of aero-engine, belong to complicated, hollow, thin-wall special-shaped structural member, be the important load parts of aero-engine, dimension precision requirement is high, and manufacturing process is complicated, wall unevenness is even, casting technique difficulty is very big, and suppress the wax-pattern corresponding with part by mould, the wax-pattern then by preparing prepares corresponding foundry goods, and then make corresponding part, with the demand of satisfied assembling.In order to better coordinate engine assembly, now proposing a kind of novel skeleton structure, need develop for this skeleton structure the wax-pattern compacting tool set adapted.
Summary of the invention:
The object of this invention is to provide wax-pattern compacting tool set of a kind of hollow thin-wall part and preparation method thereof, compacting size and the qualified wax-pattern of surface quality, and then form high-precision skeleton foundry goods.
For achieving the above object, the present invention is by the following technical solutions:
The wax-pattern compacting tool set of a kind of hollow thin-wall part provided by the invention, for shaping hollow thin-wall part wax-pattern, described hollow complex thin-walled parts comprises segmental arc, segmental arc afterbody is provided with cylinder, segmental arc front portion offers U-lag, notch both sides cell wall outwards opens, segmental arc section body is provided with two bearings, two bearing lower ends all have the first groove, described mould comprises supporting base, above supporting base, counterdie is installed, counterdie is provided with core, on counterdie, correspondence is provided with patrix, on counterdie, also correspondence is provided with front mould and rear mold, described front mould and rear mold can relative counterdie slide anteroposterior, described patrix, front mould, rear mold, the cavity enclosing formation between counterdie and core is corresponding with the hollow thin-wall part shape needing to prepare, counterdie side offers casting mouth, casting mouth and described cavity connects, also ejecting mechanism is provided with below described counterdie, described core comprises soluble core and ceramic core, and soluble core and ceramic core coordinate the U-lag structure forming segmental arc front portion and offer.
Described soluble core material is polyethylene glycol.
Described front mould and rear mold are symmetrical structure.
Described patrix both sides are also respectively arranged with latch segment, and described latch segment is clapboard, locks patrix.
Described ejecting mechanism comprises top board, top board two ends are positioned on the L shape step surface that supporting base inwall offers, cam is provided with below top board, cam two ends extend to form protuberance and are inserted in supporting base sidewall, wherein the protuberance end of side is through supporting base sidewall, and affixed driver plate one end, the driver plate other end is provided with handle, handle drives driver plate to rotate, protuberance is driven by driver plate, and then the rotation of band moving cam, top board is provided with push rod, on counterdie, correspondence is provided with and ejects hole, cam driven top board moves upward, wax part ejects through ejecting hole by push rod, push rod fixed head is also provided with release link.
Described top board is also connected with push rod fixed head, and push rod fixed head is sleeved on push rod bottom.
Nut check is passed through between described protuberance and driver plate.
The upper surface of described counterdie offers the first groove, front mould and rear mold lower surface correspondence are connected with tenon bar, tenon bar lower slide is connected to described first groove, first groove both sides of described counterdie are also respectively arranged with boss, front mould and rear mold lower surface correspondence are provided with the second groove, described second groove matches with boss, carries out spacing to above-mentioned front mould and rear mold, and described front mould can relative counterdie slide anteroposterior with rear mold.
Adopt the wax-pattern compacting tool set of above-mentioned hollow thin-wall part to prepare the method for hollow thin-wall part wax-pattern, concrete steps are as follows:
The first step: mould is placed on the table, core is vertically placed on counterdie, forward and backward mould is fastened, then patrix is fastened on counterdie lock;
Second step: inject wax liquid in casting mouth, wax liquid to patrix, front mould, rear mold, enclose formation between counterdie and core cavity in fill, pressurize certain hour;
3rd step: open patrix, slide forward and backward mould, then starts ejecting mechanism and is ejected by wax part, take out wax part;
4th step: the wax part suppressed is placed in the groove containing water purification, dissolves away soluble core, soluble core is sloughed from wax part, obtains required wax-pattern.
Dwell time 120s ~ 150s in described second step, Pressure Casting 1.4MPa ~ 1.6MPa, wax liquid temperature 66 DEG C ~ 72 DEG C.
Beneficial effect of the present invention: mould adopts generally and upper and lower, forward and backwardly carries out somatotype, form the part of high accuracy size, the hand-rail type cam ejecting mechanism arranged overcomes this type of wax-pattern molding difficult problem, can control to eject speed according to the situation of wax-pattern, both ensured that wax-pattern took out smoothly from die mould, wax-pattern distortion can be reduced again, use mold process high-quality and high-efficiency, improve dimensional accuracy; Convenient operation person operate, and reduces operation easier, enhance productivity; The present invention has been applied to the die mould preparation of the complex structural member skeleton wax-pattern of multiple model, and the foundry goods of the wax-pattern using mould of the present invention suppress production has been installed use, and respond well, economic benefit is huge.
Accompanying drawing illustrates:
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 the top view after the wax-pattern compacting tool set of hollow thin-wall part removes patrix;
Fig. 5 is the structural representation after the wax-pattern compacting tool set of hollow thin-wall part removes patrix;
Structure diagram when Fig. 6 is ejecting mechanism molding after molding;
Fig. 7 is the wax-pattern schematic diagram taken out from mould;
Fig. 8 is the wax-pattern schematic diagram after taking off soluble core;
Fig. 9 is the structural representation of patrix;
Figure 10 is the structural representation of rear mold;
Figure 11 is the structural representation of core;
Figure 12 is the generalized section of the wax-pattern compacting tool set front view of hollow thin-wall part;
Figure 13 is the generalized section of the wax-pattern compacting tool set left view of hollow thin-wall part;
1-segmental arc, 2-cylinder, 3-U shape groove, 4-segmental arc section body, 5-bearing, 6-first groove, 7-supporting base, 8-counterdie, 9-core, 10-soluble core, 11-ceramic core, 12-patrix, 13-front mould, 14-rear mold, 15-casting mouth, 16-latch segment, 17-top board, 18-cam, 19-protuberance, 20-driver plate, 21-handle, 22-push rod fixed head, 23-push rod, 24-release link, 25-nut, 26-first groove, 27-tenon bar, 28-boss, 29-second groove, 30-pin, 31-ejects hole, 32-wax part, 33-wax-pattern, 34-sells.
Detailed description of the invention:
Below in conjunction with 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 shaping hollow thin-wall part wax-pattern, described hollow complex thin-walled parts comprises segmental arc 1, segmental arc afterbody is provided with cylinder 2, segmental arc front portion offers U-lag 3, notch both sides cell wall outwards opens, segmental arc section body 4 is provided with two bearings 5, two bearing 5 lower ends all have the first groove 6, described mould comprises supporting base, counterdie 8 is installed above supporting base 7, counterdie 8 is provided with core 9, on counterdie 8, correspondence is provided with patrix 12, on counterdie 8, also correspondence is provided with front mould 13 and rear mold 14, described front mould 13 and rear mold 14 can relative counterdie 8 slide anteroposterior, described patrix 12, front mould 13, rear mold 14, the cavity enclosing formation between counterdie 8 and core 9 is corresponding with the hollow thin-wall part shape needing to prepare, counterdie 8 side offers casting mouth 15, casting mouth 15 and described cavity connects, also ejecting mechanism is provided with below described counterdie 8, described core 9 comprises soluble core 10 and ceramic core 11, and soluble core 10 and ceramic core 11 coordinate the U-lag structure forming segmental arc front portion and offer.
Described soluble core 10 material is polyethylene glycol.
Described front mould 13 and rear mold 14 are symmetrical structure.
Described patrix 12 both sides are also respectively arranged with latch segment 16, and described latch segment 16 is clapboard, locks patrix 12.
Described ejecting mechanism comprises top board 17, top board 17 two ends are positioned on the L shape step surface that supporting base 7 inwall offers, cam 18 is provided with below top board 17, cam 18 two ends extend to form protuberance 19 and are inserted in supporting base sidewall, wherein the protuberance end of side is through supporting base sidewall, and affixed driver plate 20 one end, driver plate 20 other end is provided with handle 21, handle 21 drives driver plate 20 to rotate, protuberance 19 is driven by driver plate 20, and then the rotation of band moving cam 18, top board 17 is provided with push rod 23, on counterdie 8, correspondence is provided with and ejects hole 31, cam 18 drives top board 17 to move upward, wax part 32 ejects through ejecting hole by push rod 23, push rod fixed head 22 is also provided with release link 24.
Described top board 17 is also connected with push rod fixed head 22, and push rod fixed head 22 is sleeved on push rod 23 bottom, plays fixation to push rod.
Locked by nut 25 between described protuberance 19 and driver plate 20.
The upper surface of described counterdie 8 offers the first groove 26, front mould 13 and rear mold 14 lower surface correspondence are connected with tenon bar 27, tenon bar 27 lower slide is connected to described first groove 26, first groove both sides of described counterdie 8 are also respectively arranged with boss 28, front mould 13 and rear mold 14 lower surface correspondence are provided with the second groove 29, described second groove 29 matches with boss 28, carries out spacing to above-mentioned front mould 13 and rear mold 14, and described front mould 13 can relative counterdie 8 slide anteroposterior with rear mold 14.
Described latch segment 16 and patrix 12, be connected fastening by screw 30 and pin 34 between counterdie 8 with supporting base 7.
Adopt the wax-pattern compacting tool set of above-mentioned hollow thin-wall part to prepare the method for hollow thin-wall part wax-pattern, concrete steps are as follows:
The first step: mould is placed on the table, core 9 is vertically placed on counterdie 8, forward and backward mould is fastened, then patrix 12 is fastened to locking on counterdie 8;
Second step: inject wax liquid in casting mouth 15, wax liquid to patrix 12, front mould 13, rear mold 14, enclose formation between counterdie 8 and core 9 cavity in fill, pressurize certain hour;
3rd step: open patrix 12, slide forward and backward mould, then starts ejecting mechanism and is ejected by wax part 32, take out wax part;
4th step: the wax part suppressed is placed in the groove containing water purification, dissolves away soluble core 10, soluble core is sloughed from wax part, obtain required wax-pattern 33.
Dwell time 120s ~ 150s in described second step, Pressure Casting 1.4MPa ~ 1.6MPa, wax liquid temperature 66 DEG C ~ 72 DEG C.
A water is changed every 6h ~ 8h when carrying out depoling process in described 4th step.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of this right.
Claims (9)
1. the wax-pattern compacting tool set of a hollow thin-wall part, for shaping hollow thin-wall part wax-pattern, described hollow complex thin-walled parts comprises segmental arc, segmental arc afterbody is provided with cylinder, segmental arc front portion offers U-lag, notch both sides cell wall is opened outside both sides, segmental arc section body is provided with two bearings, two bearing lower ends all have the first groove, it is characterized in that: described mould comprises supporting base, above supporting base, counterdie is installed, counterdie is provided with core, on counterdie, correspondence is provided with patrix, on counterdie, also correspondence is provided with front mould and rear mold, described front mould and rear mold can relative counterdie slide anteroposterior, described patrix, front mould, rear mold, the cavity enclosing formation between counterdie and core is corresponding with the hollow thin-wall part shape needing to prepare, counterdie side offers casting mouth, casting mouth and described cavity connects, also ejecting mechanism is provided with below described counterdie, described core comprises soluble core and ceramic core, and soluble core and ceramic core coordinate the U-lag structure forming segmental arc front portion and offer.
2. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 1, is characterized in that: described soluble core material is polyethylene glycol.
3. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 1, is characterized in that: described front mould and rear mold are symmetrical structure.
4. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 1, is characterized in that: described patrix both sides are also respectively arranged with latch segment, and described latch segment is clapboard, locks patrix.
5. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 1, it is characterized in that: described ejecting mechanism comprises top board, top board two ends are positioned on the L shape step surface that supporting base inwall offers, cam is provided with below top board, cam two ends extend to form protuberance and are inserted in supporting base sidewall, wherein the protuberance end of side is through supporting base sidewall, and affixed driver plate one end, the driver plate other end is provided with handle, handle drives driver plate to rotate, protuberance is driven by driver plate, and then the rotation of band moving cam, top board is provided with push rod, on counterdie, correspondence is provided with and ejects hole, cam driven top board moves upward, wax part ejects through ejecting hole by push rod, push rod fixed head is also provided with release link.
6. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 5, is characterized in that: pass through nut check between described protuberance and driver plate.
7. the wax-pattern compacting tool set of a kind of hollow thin-wall part according to claim 1, it is characterized in that: the upper surface of described counterdie offers the first groove, front mould and rear mold lower surface correspondence are connected with tenon bar, tenon bar lower slide is connected to described first groove, first groove both sides of described counterdie are also respectively arranged with boss, front mould and rear mold lower surface correspondence are provided with the second groove, described second groove matches with boss, carry out spacing to above-mentioned front mould and rear mold, described front mould can relative counterdie slide anteroposterior with rear mold.
8. adopt the wax-pattern compacting tool set of above-mentioned hollow thin-wall part to prepare the method for hollow complex thin-walled workpiece wax-pattern, it is characterized in that: concrete steps are as follows:
The first step: mould is placed on the table, core is vertically placed on counterdie, forward and backward mould is fastened, then patrix is fastened on counterdie lock;
Second step: inject wax liquid in casting mouth, wax liquid to patrix, front mould, rear mold, enclose formation between counterdie and core cavity in fill, pressurize certain hour;
3rd step: open patrix, slide forward and backward mould, then starts ejecting mechanism and is ejected by wax part, take out wax part;
4th step: the wax part suppressed is placed in the groove containing water purification, dissolves away soluble core, soluble core is sloughed from wax part, obtains required wax-pattern.
9. method according to claim 8, is characterized in that: dwell time 120s ~ 150s in described second step, Pressure Casting 1.4MPa ~ 1.6MPa, wax liquid temperature 66 DEG C ~ 72 DEG C.
Priority Applications (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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| Application Number | Priority Date | Filing Date | Title |
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| 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 true CN105436404A (en) | 2016-03-30 |
| CN105436404B CN105436404B (en) | 2018-01-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424549A (en) * | 2016-10-24 | 2017-02-22 | 张晓光 | Multi-pipe joint part investment casting mold |
| CN107116183A (en) * | 2017-05-10 | 2017-09-01 | 钢铁研究总院 | The method that ceramic core and soluble core prepare complicated hollow die cavity casting |
| CN107626887A (en) * | 2017-09-20 | 2018-01-26 | 北京星航机电装备有限公司 | A kind of forming method of the wax-pattern of Intermediate Gray interlayer cavity |
| CN108723296A (en) * | 2018-05-25 | 2018-11-02 | 保定风帆精密铸造制品有限公司 | A kind of manufacturing method in Powered Propulsion stage casing peculiar to vessel |
| CN110394419A (en) * | 2019-07-25 | 2019-11-01 | 宁夏苏宁新能源设备有限公司 | A kind of vertical running castings of C-shaped channel |
| CN110640081A (en) * | 2019-09-27 | 2020-01-03 | 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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| CN104353784A (en) * | 2014-10-31 | 2015-02-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Precision casting method for complex thin-wall structural member framework of high-temperature alloy cavity |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424549A (en) * | 2016-10-24 | 2017-02-22 | 张晓光 | Multi-pipe joint part investment casting mold |
| CN107116183A (en) * | 2017-05-10 | 2017-09-01 | 钢铁研究总院 | The method that ceramic core and soluble core prepare complicated hollow die cavity casting |
| CN107626887A (en) * | 2017-09-20 | 2018-01-26 | 北京星航机电装备有限公司 | A kind of forming method of the wax-pattern of Intermediate Gray interlayer cavity |
| CN108723296A (en) * | 2018-05-25 | 2018-11-02 | 保定风帆精密铸造制品有限公司 | A kind of manufacturing method in Powered Propulsion stage casing peculiar to vessel |
| CN110394419A (en) * | 2019-07-25 | 2019-11-01 | 宁夏苏宁新能源设备有限公司 | A kind of vertical running castings of C-shaped channel |
| 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 |
| CN110640081A (en) * | 2019-09-27 | 2020-01-03 | 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 |
| 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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|---|---|
| CN105436404B (en) | 2018-01-16 |
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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 |