CN204276804U - A kind of back-off structure precision castings Wax mold - Google Patents
A kind of back-off structure precision castings Wax mold Download PDFInfo
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- CN204276804U CN204276804U CN201420659021.XU CN201420659021U CN204276804U CN 204276804 U CN204276804 U CN 204276804U CN 201420659021 U CN201420659021 U CN 201420659021U CN 204276804 U CN204276804 U CN 204276804U
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Abstract
A kind of back-off structure precision castings of the utility model Wax mold, comprises the upper die and lower die cooperatively interacted, and is held and mounted on the active chunk between upper die and lower die; Upper die and lower die and active chunk are combined to form wax-pattern cavity; Patrix is that die is arranged, and for the upper surface of shaping back-off structure precision castings upper top, patrix upper end offers the molded-in channel with wax-pattern cavity connects; Counterdie is that punch is arranged, for shaping back-off structure precision castings upper top without the lower surface of back-off cell body side and lower pillar stand side, and the bottom surface of boss and outside; Active chunk comprises the movable block that at least three stack setting; The movable block being positioned at top layer is that punch is arranged, and arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; All the other movable blocks are that punch is arranged, for the angled end-face in shaping back-off cell body.Utilize the independent active chunk arranged to realize the spacing of its internal structure, by coordinating, directly carry out delivery, dimensional accuracy is high.
Description
Technical field
The utility model belongs to precision casting technology field, relates to Wax mold, is specially a kind of back-off structure precision castings Wax mold.
Background technology
In precision castings Wax mold design process, some " back-off " structural castings, i.e. outer little interior large back-off cell body, just cannot direct delivery.Run into analogue, back-off structure precision castings as shown in Figure 1, its structure is the T-shaped of the downward-sloping setting in upper top one end, and upper top two ends form the mouth of hook respectively to lower distortion; Lower supporting rod end is along the outwardly formation boss in direction with upper top downward-sloping one end homonymy, and the upper surface of boss is the angled end-face of the downward-sloping setting of free end; The upper top of boss and respective side forms back-off cell body, passes through round-corner transition between the bottom land in back-off cell body and angled end-face.When designing the Wax mold of back-off structure precision castings at this turborotor inframarginal place, usually have three kinds of ways, the first, change casting structure, avoids the appearance of back-off structure; The second, split design Wax mold, splices after having suppressed wax-pattern again; 3rd, adopt solubility mould material core to realize.Because foundry goods has just done the consideration of processing at the beginning of design, therefore change casting structure and be often difficult to realize, after usually adopting in prior art, both realize.And split design Wax mold, as shown in Figure 1, be that benchmark is divided into Part I 9 and Part II 10 with cut-off rule, two parts independent designing mould respectively, after being pressed into wax-pattern, welds together Part I 9 and Part II 10 with wax.Splice this method after compacting again and have its obvious shortcoming: the first, workload is larger; The second, artificial splicing can not ensure the uniformity of wax-pattern part, and dimensional accuracy is low.Adopt the shortcoming of solubility mould material core also apparent, main cause is that solubility mould material core itself has different contractions at different temperature, and environment temperature is very large on the impact of its dimensional accuracy, therefore, well can not ensure wax-pattern part dimensional accuracy.
Utility model content
For problems of the prior art, the utility model provides one disposablely in Wax mold, directly can carry out delivery to back-off structure, and dimensional accuracy is high, the back-off structure precision castings Wax mold that uniformity is good.
The utility model is achieved through the following technical solutions:
A kind of back-off structure precision castings Wax mold, comprises the upper die and lower die cooperatively interacted, and is held and mounted on the active chunk between upper die and lower die; Upper die and lower die and active chunk are combined to form wax-pattern cavity; Patrix is that die is arranged, and for the upper surface of shaping back-off structure precision castings upper top, patrix upper end offers the molded-in channel with wax-pattern cavity connects; Counterdie is that punch is arranged, for shaping back-off structure precision castings upper top without the lower surface of back-off cell body side and lower pillar stand side, and the bottom surface of boss and outside; Active chunk comprises the movable block that at least three stack setting; The movable block being positioned at top layer is that punch is arranged, and arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; All the other movable blocks are that punch is arranged, for the angled end-face in shaping back-off cell body.
Preferably, the side that counterdie is positioned at back-off groove is provided with the cushion block that can dismantle; Cushion block correspondence is arranged on the below of the contact surface of patrix and active chunk, and the contact surface of the height of cushion block and counterdie and active chunk is contour.
Preferably, upper die and lower die, and counterdie and cushion block are all fastened by bolts and are located by connecting.
Preferably, active chunk comprises the first movable block, the second movable block and the 3rd movable block that arrange from top to bottom successively; The upper pinch face of the first movable block contacts with patrix, and the lower clamping surface of the 3rd activity contacts with counterdie; First movable block is used for lower surface and the lower pillar stand side that shaping back-off structure precision castings upper top arranges back-off cell body side; For shaping angled end-face after the inserting end cooperation of the second movable block and the 3rd movable block.
Compared with prior art, the utility model has following useful technique effect:
The utility model realizes the integral one-step molding of back-off structure precision castings wax-pattern by one set of die, for little design feature large outer in back-off cell body, the independent active chunk arranged is utilized to realize the spacing of its internal structure, by the cooperation of at least three movable blocks, form the bottom land of back-off cell body and the shaping of sidewall; Middle movable block preferentially can be taken out when delivery, be convenient to and adapt to the size of notch on the one hand, when can avoid on the other hand delivery, movable block is on the impact of notch wax-pattern, sufficient modulo operation space can also be provided for the mould of major part in notch protrudes, solving back-off structure precision castings wax-pattern thoroughly can not the problem of global formation, ensure that the dimensional accuracy of shaping wax-pattern and the uniformity of wax-pattern part, reduce Wax mold quantity, reduce workman's working strength, improve working (machining) efficiency.
Further, by the setting of cushion block, what can realize with patrix contact surface is corresponding, ensures the precision of stability to active chunk clamping and location; And unloading stress can be reached when delivery, improve delivery efficiency and shaping wax-pattern quality; Coordinate fastening bolt, more convenient to operate and simple.
Further, by the setting of three pieces of movable blocks, under the condition meeting delivery, can reduce the quantity of mould to greatest extent, simplify the operation step, and be beneficial to the location of angled end-face and moulding integrated, reduce the risk of angled end-face defect that part too much causes and error.
Accompanying drawing explanation
Fig. 1 is the utility model for back-off structure precision castings schematic diagram.
Fig. 2 is the profile of Wax mold described in the utility model at back-off cell body place.
In figure: 1 is patrix, 2 is cushion block, and 3 is counterdie, and 4 is the first movable block, and 5 is the second movable block, and 6 is the 3rd movable block, and 7 is wax-pattern cavity, and 8 is casting passage, and 9 is Part I, and 10 is Part II.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, described in be to explanation of the present utility model instead of restriction.
A kind of back-off structure precision castings of the utility model Wax mold, as shown in Figure 2, comprises the patrix 1 and counterdie 3 that cooperatively interact, and is held and mounted on the active chunk between patrix 1 and counterdie 3; Patrix 1, counterdie 3 and active chunk are combined to form wax-pattern cavity 7; Patrix 1 is arranged in die, and for the upper surface of shaping back-off structure precision castings upper top, patrix 1 upper end offers the molded-in channel 8 be communicated with wax-pattern cavity 7; Counterdie 3 is arranged in punch, for shaping back-off structure precision castings upper top without the lower surface of back-off cell body side and lower pillar stand side, and the bottom surface of boss and outside; Active chunk comprises the movable block that at least three stack setting; The movable block being positioned at top layer is that punch is arranged, and arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; All the other movable blocks are that punch is arranged, for the angled end-face in shaping back-off cell body.
Wherein, as shown in Figure 2, the side that counterdie 3 is positioned at back-off groove is provided with the cushion block 2 that can dismantle; Cushion block 2 correspondence is arranged on the below of the contact surface of patrix 1 and active chunk, the height of cushion block 2 and the contact surface of counterdie 3 and active chunk contour.Align in the lower surface that contact surface and the back-off structure precision castings upper top of patrix 1 and active chunk arrange back-off groove side, the contact surface of counterdie 3 and active chunk aligns with the least significant end of angled end-face; Form the clamping space of clamping active chunk between two contact surfaces, compression location is carried out to active chunk and fixes.
In this preferred embodiment, patrix 1 and counterdie 3, and counterdie 3 and cushion block 2 are all fastened by bolts and are located by connecting.Active chunk comprises the first movable block 4, second movable block 5 and the 3rd movable block 6 that arrange from top to bottom successively; The upper pinch face of the first movable block 4 contacts with patrix 1, and the lower clamping surface of the 3rd activity 6 contacts with counterdie 3; First movable block 4 arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; For shaping angled end-face after the inserting end cooperation of the second movable block 5 and the 3rd movable block 6.The inserting end of the first movable block 4 is also for the bottom land of back-off cell body and the shaping of angled end-face arc transition part; The inserting end of the second movable block 5 and the 3rd movable block 6 carries out spacing shaping after the planar registration of lower surface to it.
When using on the basis of this preferred embodiment, active chunk mounting means is as follows, is placed on by the 3rd movable block 6 on lower end clamping face that cushion block 2 and counterdie 3 together formed; Then the second movable block 5 is placed on the 3rd movable block 6, and inserting end aligns along angled end-face; Finally the first movable block 4 is placed on the second movable block 5, and inserting end aligns along the excessive circular arc of angled end-face and bottom land and bottom land.
During mold work described in the utility model, wax-pattern cavity 7 fills up, is taken out after shaping investment pattern after injecting from casting passage 8 by wax material.
Mold taking-up order on the basis of this preferred embodiment is first taking out patrix 1, then extracting the second movable block 5 out, for providing delivery space with the movable block that patrix 1 contacts with counterdie 3; Then extract the 3rd movable block 6 again out, finally take out the first movable block 4, from counterdie 3, finally take out shaping back-off structure precision castings wax-pattern, achieve the disposable integral Cheng Mo to it, ensure uniformity and the dimensional accuracy of wax-pattern part, reduce workman's working strength.
Claims (4)
1. a back-off structure precision castings Wax mold, is characterized in that, comprises the patrix (1) and counterdie (3) that cooperatively interact, and is held and mounted on the active chunk between patrix (1) and counterdie (3); Patrix (1), counterdie (3) and active chunk are combined to form wax-pattern cavity (7);
Described patrix (1) is arranged in die, and for the upper surface of shaping back-off structure precision castings upper top, patrix (1) upper end offers the molded-in channel (8) be communicated with wax-pattern cavity (7);
Described counterdie (3) is arranged in punch, for shaping back-off structure precision castings upper top without the lower surface of back-off cell body side and lower pillar stand side, and the bottom surface of boss and outside;
Described active chunk comprises the movable block that at least three stack setting; The movable block being positioned at top layer is that punch is arranged, and arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; All the other movable blocks are that punch is arranged, for the angled end-face in shaping back-off cell body.
2. a kind of back-off structure precision castings Wax mold according to claim 1, is characterized in that, the side that counterdie (3) is positioned at back-off groove is provided with the cushion block (2) that can dismantle; Cushion block (2) correspondence is arranged on the below of the contact surface of patrix (1) and active chunk, the height of cushion block (2) and the contact surface of counterdie (3) and active chunk contour.
3. a kind of back-off structure precision castings Wax mold according to claim 1, is characterized in that, patrix (1) and counterdie (3), and counterdie (3) and cushion block (2) are all fastened by bolts and are located by connecting.
4. a kind of back-off structure precision castings Wax mold according to claim 1, it is characterized in that, described active chunk comprises the first movable block (4), the second movable block (5) and the 3rd movable block (6) that arrange from top to bottom successively; The upper pinch face of the first movable block (4) contacts with patrix (1), and the lower clamping surface of the 3rd activity (6) contacts with counterdie (3); First movable block (4) arranges lower surface and the lower pillar stand side of back-off cell body side for shaping back-off structure precision castings upper top; For shaping angled end-face after the inserting end cooperation of the second movable block (5) and the 3rd movable block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659021.XU CN204276804U (en) | 2014-11-05 | 2014-11-05 | A kind of back-off structure precision castings Wax mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420659021.XU CN204276804U (en) | 2014-11-05 | 2014-11-05 | A kind of back-off structure precision castings Wax mold |
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| CN204276804U true CN204276804U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420659021.XU Active CN204276804U (en) | 2014-11-05 | 2014-11-05 | A kind of back-off structure precision castings Wax mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480560A (en) * | 2018-06-20 | 2018-09-04 | 株洲中航动力精密铸造有限公司 | Cast shape method of adjustment and Wax mold group for adjusting cast shape |
| CN112935228A (en) * | 2021-01-28 | 2021-06-11 | 季华实验室 | Aviation blade wax matrix mould mold opening device |
-
2014
- 2014-11-05 CN CN201420659021.XU patent/CN204276804U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108480560A (en) * | 2018-06-20 | 2018-09-04 | 株洲中航动力精密铸造有限公司 | Cast shape method of adjustment and Wax mold group for adjusting cast shape |
| CN108480560B (en) * | 2018-06-20 | 2020-12-18 | 中国航发南方工业有限公司 | Casting shape adjusting method and wax mold die set for adjusting casting shape |
| CN112935228A (en) * | 2021-01-28 | 2021-06-11 | 季华实验室 | Aviation blade wax matrix mould mold opening device |
| CN112935228B (en) * | 2021-01-28 | 2022-05-10 | 季华实验室 | Aviation blade wax matrix mould mold opening device |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO,LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE Corp.,PLC |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: XI'AN AVIATION POWER Co.,Ltd. |