CN216705848U - Wax mould forming device with ceramic core - Google Patents
Wax mould forming device with ceramic core Download PDFInfo
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- CN216705848U CN216705848U CN202123430462.1U CN202123430462U CN216705848U CN 216705848 U CN216705848 U CN 216705848U CN 202123430462 U CN202123430462 U CN 202123430462U CN 216705848 U CN216705848 U CN 216705848U
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Abstract
The utility model provides a wax mould forming device with a ceramic core, which comprises a lower bottom plate, wherein a wax mould positioning block for supporting a wax mould upper block, a wax mould lower block and a wax mould splicing block is embedded on the lower bottom plate; a plurality of ceramic core positioning blocks are arranged on the wax mould positioning block; a plurality of ceramic core front end positioning blocks and fixing blocks are arranged on the lower bottom plate; the top end of the fixed block is connected with a rotary connecting rod; one end of the rotating connecting rod is rotatably connected to the fixing block, and the other end of the rotating connecting rod is provided with a positioning piece for pressing the ceramic core. According to the ceramic core wax mold, the ceramic core positioning block, the ceramic core front end positioning block and the positioning piece are used for well limiting the position of the ceramic core in the wax mold, and sufficient gaps are reserved between the ceramic core and each part of the wax mold, so that the problems of inaccurate positioning of the ceramic core and stress of the ceramic core are effectively solved, the manufacturing difficulty of a slender ceramic core wax mold product easy to break is particularly reduced, and the manufacturing period of the wax mold is shortened.
Description
Technical Field
The utility model relates to the technical field of wax mold forming, in particular to a wax mold forming device with a ceramic core.
Background
In the prior art, wax moulds with ceramic cores for casting are formed in a mode that the ceramic cores are placed in a wax pressing mould in a core head positioning or six-point positioning mode, and then the ceramic cores are wrapped by wax pressing to form the appearance. This approach easily leads to two problems:
1. a fit clearance is left between the ceramic core positioning part of the mold and the ceramic core, and the ceramic core is easy to shift in the wax pressing process to cause the difference of wall thickness or position degree;
2. the mold filling wax in the wax pressing process forms impact force on the ceramic core, so that the ceramic core is easily subjected to stress fracture, and the force for forming shrinkage on the ceramic core in the wax mold cooling process also causes slight change of the position of the ceramic core and tensile stress to cause stress microcrack of the ceramic core. There are also those formed by using 3D printing technology, but since the internal structure requires a ceramic core, the printing formation is limited.
Disclosure of Invention
The forming device has a better supporting function, is convenient for wax mold forming, ensures a better forming effect, effectively solves the problems of inaccurate ceramic core positioning and ceramic core stress, particularly reduces the manufacturing difficulty of slender and easily-fractured ceramic core wax mold products, and shortens the manufacturing period of the wax mold.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a wax pattern forming device with a ceramic core comprises a lower bottom plate, wherein a wax pattern positioning block for supporting a wax pattern upper block, a wax pattern lower block and a wax pattern splicing block is embedded on the lower bottom plate; a plurality of ceramic core positioning blocks for supporting the ceramic cores are arranged on the wax mold positioning blocks;
a plurality of ceramic core front end positioning blocks for positioning the ceramic cores are annularly arranged on the lower bottom plate and positioned on the outer side of the wax mold positioning block; a plurality of fixing blocks are arranged on the lower bottom plate and positioned outside the positioning block at the front end of the ceramic core and surround the wax mold positioning block;
the top end of the fixed block is rotatably connected with a rotating connecting rod; one end of the rotating connecting rod is rotatably connected to the fixing block, and the other end of the rotating connecting rod is provided with a positioning piece for pressing the ceramic core.
Preferably, a ceramic core positioning pin for positioning the ceramic core is arranged at the top end of the positioning block at the front end of the ceramic core.
Preferably, the top end of the positioning block at the front end of the ceramic core is also provided with a ceramic core supporting groove for supporting the ceramic core, and the ceramic core positioning pin is embedded in the ceramic core supporting groove.
Preferably, the ceramic core support groove is a V-shaped groove.
Preferably, a soft rubber pressure head is arranged at the bottom end of the positioning piece.
Preferably, the fixed block is rotatably connected with the rotating connecting rod through a rotating pin.
Preferably, the rotating connecting rod is further provided with a fixing screw, and the bottom end of the fixing screw is embedded in the fixing block.
The utility model has the beneficial effects that: the wax mold splicing piece has a good supporting effect on the upper wax mold block, the lower wax mold block and the wax mold splicing piece through the wax mold positioning block, so that the wax mold is convenient to form, and a better forming effect is ensured; through the ceramic core positioning block, the ceramic core front end positioning block and the positioning piece, the position of the ceramic core in the wax mold is well limited, and sufficient gaps are reserved between the ceramic core and each part of the wax mold, so that the problems of inaccurate positioning of the ceramic core and stress of the ceramic core are effectively solved, particularly the manufacturing difficulty of a slender ceramic core wax mold product easy to break is reduced, and the manufacturing period of the wax mold is shortened.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a positioning block at the front end of the ceramic core according to the present invention.
In the figure, 1-a lower bottom plate, 2-a wax pattern positioning block, 3-a ceramic core positioning block, 4-a ceramic core front end positioning block, 41-a ceramic core positioning pin, 42-a ceramic core supporting groove, 5-a fixing block, 6-a rotating connecting rod, 61-a rotating pin, 62-a fixing screw, 7-a positioning piece, 8-a supporting column, 91-a wax pattern upper block, 92-a wax pattern lower block, 93-a wax pattern splicing block and 94-a ceramic core.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2: a wax pattern forming device with a ceramic core comprises a lower base plate 1, wherein a wax pattern positioning block 2 for supporting a wax pattern upper block 91, a wax pattern lower block 92 and a wax pattern splicing block 93 is embedded on the lower base plate 1; a plurality of ceramic core positioning blocks 3 for supporting the ceramic cores 94 are arranged on the wax mold positioning block 2;
a plurality of ceramic core front end positioning blocks 4 for positioning the ceramic cores 94 are annularly arranged on the lower bottom plate 1 and positioned on the outer sides of the wax mold positioning blocks 2; a plurality of fixing blocks 5 are arranged on the lower bottom plate 1 and positioned outside the ceramic core front end positioning block 4 and around the wax mold positioning block 2;
the top end of the fixed block 5 is rotatably connected with a rotating connecting rod 6; one end of the rotary connecting rod 6 is rotatably connected to the fixing block 5, and the other end is provided with a positioning part 7 for pressing the ceramic core 94.
According to the utility model, the wax mold positioning block 2 has a good supporting effect on the wax mold upper block 91, the wax mold lower block 92 and the wax mold splicing block 93, so that the wax mold is convenient to mold, and a better molding effect is ensured; through the ceramic core positioning block 3, the ceramic core front end positioning block 4 and the positioning block 7, the position of the ceramic core 94 in the wax mold is well limited, and sufficient gaps are left between the ceramic core 94 and each part of the wax mold, so that the problems of inaccurate positioning of the ceramic core 94 and stress on the ceramic core 94 are effectively solved, particularly the manufacturing difficulty of a long and thin ceramic core wax mold product easy to break is reduced, and the manufacturing period of the wax mold is shortened.
When the wax mould is manufactured by using the method, the wax mould is divided into the upper wax mould block 91, the lower wax mould block 92 and the wax mould split block 93, then the upper wax mould block 91, the lower wax mould block 92, the wax mould split block 93 and the ceramic core 94 are positioned and assembled by the method, and finally the upper wax mould block 91, the lower wax mould block 92 and the wax mould split block 93 are bonded by a wax mould welding mode, so that the problems of inaccurate positioning of the ceramic core 94 and stress of the ceramic core 94 are effectively avoided, the mould manufacturing difficulty is reduced, the feasibility of 3D printing manufacturing is improved, and the manufacturing period of the wax mould is shortened. In a specific implementation process, a supporting column 8 for supporting the lower bottom plate 1 is arranged on the bottom surface of the lower bottom plate 1.
Further, a ceramic core positioning pin 41 for positioning the ceramic core 94 is arranged at the top end of the ceramic core front end positioning block 4.
The ceramic core 94 is limited by the positioning pin 41, so that better positioning accuracy is ensured.
Further, a ceramic core supporting groove 42 for supporting the ceramic core 94 is formed at the top end of the positioning block 4 at the front end of the ceramic core, and the ceramic core positioning pin 41 is embedded in the ceramic core supporting groove 42.
Through the ceramic core support groove 42, the end part of the ceramic core 94 is supported and limited, so that the ceramic core 94 is prevented from displacement in the wax mold forming process, better positioning precision is ensured, and the wax mold is ensured to have better finished product quality.
Further, the ceramic core support groove 42 is a V-shaped groove.
The V-shaped grooves can better support and limit the end of the ceramic core 94.
Furthermore, a soft rubber pressure head is arranged at the bottom end of the positioning piece 7.
The bottom end of the positioning part 7 is provided with a soft rubber pressure head, so that the positioning part 7 can be prevented from damaging the ceramic core 94, and the ceramic core 94 is protected.
Further, the fixed block 5 is rotatably connected with the rotating connecting rod 6 through a rotating pin 61; the rotating connecting rod 6 is further provided with a fixing screw 62 for fixing the rotating connecting rod 6, and the bottom end of the fixing screw 62 is embedded in the fixing block 5.
When the positioning member 7 is pressed to the ceramic core 94, the fixing screw 62 is screwed to fix the rotary connecting rod 6 preliminarily, so that the ceramic core 94 can be prevented from being damaged due to the rotation of the rotary connecting rod 6 in the wax pattern forming process.
The working principle of the utility model is as follows: according to the utility model, firstly, through product structure process analysis, a wax mould with a ceramic core to be manufactured is divided into an upper wax mould block 91, a lower wax mould block 92, a wax mould split block 93 and a ceramic core 94, proper gaps are reserved among the parts, and the wax mould and the ceramic core are formed respectively through mould wax pressing or 3D printing.
Then the tool is horizontally placed on a workbench through a support column 8, a wax mold lower block 92 is accurately positioned on the lower bottom plate 1 through a wax mold positioning block 2, a ceramic core 94 is placed on a ceramic core positioning block 3 and a ceramic core front positioning block 4, a fixing screw 62 on a rotating connecting rod 6 is screwed to fix the rotating connecting rod 6 on a fixing block 5, the ceramic core 94 is lightly pressed by a positioning piece 7 fixedly screwed on the rotating connecting rod 6 to be stably and reliably attached to a positioning surface of the ceramic core positioning block 3, the left side and the right side of the ceramic core positioning pin 41 are closely attached to a ceramic core front end positioning block 4, and all contact surfaces are ensured to be closely attached, and the position at the moment is an ideal position. And then a suction pipe is used for extracting bonding wax to bond and fix the ceramic core 94 and the wax mold lower block 92.
Then the upper wax pattern block 91 and the split wax pattern block 93 are placed on the lower wax pattern block 92, the correct relative positions are ensured through the reserved fit clearance, the bonding among all the split blocks of the wax pattern is reliable through a wax pattern welding method, and the whole wax pattern is manufactured by smoothening the appearance.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a take wax matrix forming device of ceramic core which characterized in that: the wax mould structure comprises a lower base plate (1), wherein a wax mould positioning block (2) for supporting a wax mould upper block (91), a wax mould lower block (92) and a wax mould splicing block (93) is embedded on the lower base plate (1); a plurality of ceramic core positioning blocks (3) for supporting the ceramic cores (94) are arranged on the wax mould positioning block (2);
a plurality of ceramic core front end positioning blocks (4) for positioning the ceramic cores (94) are annularly arranged on the lower bottom plate (1) and positioned on the outer side of the wax mold positioning block (2); a plurality of fixing blocks (5) are arranged on the lower bottom plate (1) and positioned on the outer side of the ceramic core front end positioning block (4) and surround the wax mold positioning block (2);
the top end of the fixed block (5) is rotatably connected with a rotating connecting rod (6); one end of the rotary connecting rod (6) is rotatably connected to the fixing block (5), and the other end of the rotary connecting rod is provided with a positioning piece (7) for pressing the ceramic core (94).
2. The ceramic cored wax pattern molding apparatus of claim 1, wherein: the top end of the ceramic core front end positioning block (4) is provided with a ceramic core positioning pin (41) for positioning the ceramic core (94).
3. The ceramic cored wax pattern molding apparatus of claim 2, wherein: the top end of the ceramic core front end positioning block (4) is also provided with a ceramic core supporting groove (42) for supporting the ceramic core (94), and the ceramic core positioning pin (41) is embedded in the ceramic core supporting groove (42).
4. The ceramic cored wax pattern molding apparatus of claim 3, wherein: the ceramic core supporting groove (42) is a V-shaped groove.
5. The ceramic cored wax pattern molding apparatus of claim 1, wherein: the bottom end of the positioning piece (7) is provided with a soft rubber pressure head.
6. The ceramic cored wax pattern molding apparatus of claim 1, wherein: the fixed block (5) is rotatably connected with the rotating connecting rod (6) through a rotating pin (61).
7. The ceramic cored wax pattern molding apparatus of claim 6, wherein: the rotating connecting rod (6) is further provided with a fixing screw (62), and the bottom end of the fixing screw (62) is embedded in the fixing block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430462.1U CN216705848U (en) | 2021-12-30 | 2021-12-30 | Wax mould forming device with ceramic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123430462.1U CN216705848U (en) | 2021-12-30 | 2021-12-30 | Wax mould forming device with ceramic core |
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| CN216705848U true CN216705848U (en) | 2022-06-10 |
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| CN202123430462.1U Active CN216705848U (en) | 2021-12-30 | 2021-12-30 | Wax mould forming device with ceramic core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625286A (en) * | 2022-10-13 | 2023-01-20 | 中国航发北京航空材料研究院 | External mold of single crystal hollow guide blade and positioning method thereof |
-
2021
- 2021-12-30 CN CN202123430462.1U patent/CN216705848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625286A (en) * | 2022-10-13 | 2023-01-20 | 中国航发北京航空材料研究院 | External mold of single crystal hollow guide blade and positioning method thereof |
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