CN109604536B - Shell making tool for large-scale titanium alloy investment precision casting - Google Patents
Shell making tool for large-scale titanium alloy investment precision casting Download PDFInfo
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- CN109604536B CN109604536B CN201811593645.5A CN201811593645A CN109604536B CN 109604536 B CN109604536 B CN 109604536B CN 201811593645 A CN201811593645 A CN 201811593645A CN 109604536 B CN109604536 B CN 109604536B
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- support
- shell
- titanium alloy
- tool
- precision casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C13/00—Moulding machines for making moulds or cores of particular shapes
- B22C13/08—Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores
- B22C13/085—Moulding machines for making moulds or cores of particular shapes for shell moulds or shell cores by investing a lost pattern
Abstract
A shell manufacturing tool for a large titanium alloy investment precision casting belongs to the technical field of investment precision casting technology equipment. The invention solves the problem that when the existing large-sized titanium alloy investment precision casting is subjected to a coating shell-making process, a sprue bar is easy to generate vibration, so that a module is cracked in the shell-making process. The utility model discloses a frock support, including frock support, reinforcing frame, runner frock, two first supporting wheels, two second supporting wheels, two first supporting wheels, the rotation axis rotation that the reinforcing frame set up through two levels sets up the upper portion at the frock support, the frock of watering includes that straight runner pole and rigid coupling are at the horizontal runner pole of straight runner pole lower part, the frock of watering sets up in reinforcing frame, the top of straight runner pole and horizontal runner pole all with the reinforcing frame rigid coupling, two second supporting wheels set firmly in the middle part below of frock support side by side, and two second supporting wheels place vertical plane and two rotation axis place vertical plane mutually perpendicular settings, two first supporting wheels symmetry sets up at the both ends of frock support, and two first supporting wheels.
Description
Technical Field
The invention relates to a shell manufacturing tool for a large titanium alloy investment precision casting, and belongs to the technical field of investment precision casting process equipment.
Background
In recent years, with the upgrading and upgrading of aerospace weaponry, titanium alloy structural parts are more and more large, complicated and high-precision. Investment precision casting is an important technological method for developing and producing large complex thin-wall castings, compared with other technological methods, the production process of the investment precision casting relates to key procedures such as wax pattern preparation, wax pattern repair, coating shell making and the like, and particularly the coating shell making process has a vital influence on the internal quality and the surface quality of the castings. In the prior art, the wax pattern die set is often directly erected on a bracket, and a sprue bar serves as a rotating shaft for rotation during coating. However, the method is relatively more suitable for castings with smaller sizes, and for castings with larger sizes, the sprue bar can generate vibration, so that the die set can crack in the coating process, and the quality of the shell is further influenced.
The invention patent with the patent number of 201610795850.4 discloses a titanium alloy near-rotation body casting shell manufacturing tool which is suitable for manufacturing shells of titanium alloy near-rotation body castings, but the tool cannot be suitable for wax mold modules with irregular shapes, and the universality is poor.
Disclosure of Invention
The invention provides a shell-making tool for a large-scale titanium alloy fired mold precision casting, aiming at solving the problem that a sprue bar is easy to generate vibration when the existing large-scale titanium alloy fired mold precision casting is subjected to a coating shell-making process, so that a module is cracked in the shell-making process.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a shell making tool for a large titanium alloy investment precision casting comprises a pouring channel tool, a tool bracket, a reinforcing frame, two first supporting wheels, two second supporting wheels and two rotating shafts fixedly arranged at two side parts of the reinforcing frame, the reinforcing frame is rotatably arranged at the upper part of the tool bracket through two rotating shafts which are horizontally arranged, the pouring gate tool comprises a straight pouring gate rod and a transverse pouring gate rod fixedly connected to the lower portion of the straight pouring gate rod, the pouring gate tool is arranged in the reinforcing frame, the top of the straight pouring gate rod and the transverse pouring gate rod are fixedly connected with the reinforcing frame, the two second supporting wheels are fixedly arranged below the middle portion of the tool support side by side, the vertical plane of the two second supporting wheels is vertical to the vertical plane of the two rotating shafts, the two first supporting wheels are symmetrically arranged at the two ends of the tool bracket, and the vertical plane where the two first supporting wheels are located and the vertical plane where the two rotating shafts are located are arranged in parallel.
Further, the tool support comprises a horizontal table surface and vertical supports symmetrically and fixedly connected to two ends above the horizontal table surface, and the reinforcing frame is rotatably arranged between the two vertical supports through two rotating shafts.
Further, the one end of every rotation axis all with the reinforcement frame rigid coupling, the other end of every rotation axis all rotates the setting on vertical support upper portion, all is provided with positioner on every vertical support, positioner includes locating pin and positioning disk, the locating pin slides and sets up on the upper portion of vertical support, and its slip direction is the same with the axis direction of rotation axis, the positioning disk suit is on the rotation axis and as an organic whole with the rotation axis rigid coupling, and the positioning disk is seted up a plurality ofly along its circumference and is located pin complex positioning hole.
Furthermore, the number of the positioning through holes is twelve, and the positioning through holes are uniformly distributed on the positioning plate.
Furthermore, a connecting plate is welded at one end of the rotating shaft, and the connecting plate is fixedly connected with the reinforcing frame through a screw and a nut.
Further, a connecting rod is arranged between each first supporting wheel and the side wall of the vertical support, and each first supporting wheel is rotatably arranged on the vertical support through the connecting rod.
Further, handles are fixedly arranged at two end parts of the tool support respectively.
Further, consolidate the frame and be the cuboid structure, it includes upper frame and underframe parallel arrangement about upper and lower parallel arrangement, parallel arrangement's side frame about two and two parallel and equal vertical setting's bracing piece around, wherein go up the both ends of frame and underframe and pass through two side frame rigid couplings respectively, two bracing pieces all are located between two side frame frames and the both ends of every bracing piece respectively with upper frame, underframe rigid coupling, directly water through the nut rigid coupling between the top of road pole and the upper frame middle part, cross and water through the nut rigid coupling between road pole and the underframe.
Further, the first supporting wheel and the second supporting wheel are both rubber pneumatic wheels.
Furthermore, the rotating shaft and the supporting rod are both solid structures and made of carbon steel.
Compared with the prior art, the invention has the following effects:
the frock through this application can be consolidated the module, controls the rotation and the slope of module steadily, effectively avoids the module at system shell in-process fracture, makes the module scribble hang abundant, even, has improved the qualification rate of die shell, further ensures the stability of irregular shape foundry goods, effectively reduces the rejection rate of irregular shape foundry goods. The device has simple structure and convenient operation and high efficiency.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a tooling support;
FIG. 3 is a perspective view of a second support wheel;
FIG. 4 is a perspective view of the first support wheel;
FIG. 5 is a schematic perspective view of a runner fixture;
FIG. 6 is a perspective view of a reinforcing frame;
FIG. 7 is a perspective view of the rotary shaft;
fig. 8 is a schematic view of the installation of the positioning device and the rotating shaft.
Detailed Description
The first embodiment is as follows: the embodiment is described by combining fig. 1-8, and the shell manufacturing tool for large titanium alloy investment precision castings comprises a pouring tool 1, a tool support 2, a reinforcing frame 3, two first supporting wheels 4, two second supporting wheels 5 and two rotating shafts 6 fixedly arranged at two side parts of the reinforcing frame 3, wherein the reinforcing frame 3 is rotatably arranged at the upper part of the tool support 2 through the two horizontally arranged rotating shafts 6, the pouring tool 1 comprises a straight pouring rail rod 11 and a cross pouring rail rod 12 fixedly connected at the lower part of the straight pouring rail rod 11, the pouring tool 1 is arranged in the reinforcing frame 3, the top part of the straight pouring rail rod 11 and the cross pouring rail rod 12 are fixedly connected with the reinforcing frame 3, the two second supporting wheels 5 are fixedly arranged below the middle part of the tool support 2 side by side, the vertical planes of the two second supporting wheels 5 are perpendicular to the vertical planes of the two rotating shafts 6, the two first supporting wheels 4 are symmetrically arranged at two end parts of the tool support 2, and the vertical plane of the two first supporting wheels 4 and the vertical plane of the two rotating shafts 6 are arranged in parallel. The rotation of the entire reinforcing frame 3 and thus the rotation of the runner fixture 1 is realized by the rotation of the rotation shaft 6 itself. On the basis that the rotating shaft 6 realizes the rotating action, the whole module is supported. The second supporting wheels 5 are arranged on two sides of the center of the width direction of the tool support 2 side by side, and the first supporting wheels 4 are arranged at two ends of the tool support 2. The vertical plane of the two first supporting wheels 4 and the vertical plane of the two rotating shafts 6 are in the same plane. Four supporting wheels are used for guaranteeing the holistic stability of frock support 2. The two second supporting wheels 5 are fixedly connected through a connecting shaft.
The straight runner rods 11 and the cross runner rods 12 are mutually inserted and staggered, and the material is 45# steel. The pouring gate tool 1 is placed in a pouring gate die, pasty wax liquid is injected into the die through a wax pressing machine, and the pouring gate tool 1 is wrapped to form a pouring gate.
The structure of the horizontal runner bar 12 depends on the wax patterns of different shapes and is not limited to the one shown in the drawings.
Further, the tool support 2 includes a horizontal table 21 and vertical supports 22 symmetrically fixed to two ends of the upper side of the horizontal table, and the reinforcing frame 3 is rotatably disposed between the two vertical supports 22 through two rotating shafts 6. The horizontal table surface 21 and the vertical bracket 22 are welded into a whole. The vertical support 22 is welded into an isosceles triangle structure through square pipes, and the stability of the vertical support 22 is improved.
Every rotation axis 6's one end all with the rigid coupling of reinforcement frame 3, every rotation axis 6's the other end all rotates the setting on vertical support 22 upper portion, all is provided with positioner 7 on every vertical support 22, positioner 7 includes locating pin 71 and positioning disk 72, locating pin 71 slides and sets up on vertical support 22's upper portion, and its slip direction is the same with rotation axis 6's axis direction, positioning disk 72 suit is on rotation axis 6 and as an organic whole with rotation axis 6 rigid coupling, and positioning disk 72 has seted up a plurality ofly along its circumference and locating pin 71 complex positioning hole 72-1. The positioning pin 71 can slide and rotate in the horizontal direction, and the rotation angle of the reinforcing frame 3 can be locked by the cooperation of the positioning pin 71 and the plurality of positioning through holes 72-1.
The number of the positioning through holes 72-1 is twelve, and the positioning through holes are uniformly distributed on the positioning plate 72. The reinforced frame 3 and the pouring channel tool 1 in the reinforced frame are guaranteed to be uniform in rotation angle, and therefore coating is guaranteed to be uniform.
One end of the rotating shaft 6 is welded with a connecting plate 8, and the connecting plate 8 is fixedly connected with the reinforcing frame 3 through a screw and a nut. Is convenient for disassembly and assembly.
A connecting rod 9 is arranged between each first supporting wheel 4 and the side wall of the vertical support 22, and each first supporting wheel 4 is rotatably arranged on the vertical support 22 through the connecting rod 9. When the tool moves integrally, the first supporting wheel 4 touches the bottom and is used as a supporting wheel; when the tool needs to be inclined left and right to realize the rotation of the wax mold in the reinforcing frame 3 in the other direction, the first supporting wheel 4 is lifted and suspended.
The reinforcement frame 3 is a cuboid structure, which comprises an upper frame 31 and a lower frame 32 which are arranged in an up-down parallel manner, two side frames 33 which are arranged in a left-right parallel manner, and two support rods 34 which are arranged in a front-back parallel manner and are vertically arranged, wherein the two ends of the upper frame 31 and the lower frame 32 are fixedly connected with each other through the two side frames 33, the two support rods 34 are arranged between the two side frames 33, the two ends of each support rod 34 are respectively fixedly connected with the upper frame 31 and the lower frame 32, the top of the straight pouring road rod 11 is fixedly connected with the middle part of the upper frame 31 through nuts, and the cross pouring road rod 12 is. By the design, the reinforced frame and the pouring gate tool 1 firmly form a module frame with stable structure. The upper frame 31, the lower frame 32, and the side frames 33 are formed by welding square pipes to each other, and thus the weight of the reinforcing frame 3 can be minimized while ensuring the strength. The support bar 34 is made of solid carbon steel.
The first support wheel 4 and the second support wheel 5 are both rubber pneumatic wheels. The vibration of the module and the shell in the moving process can be reduced, and the possibility of cracking of the shell is reduced.
The rotating shaft 6 and the supporting rod 34 are both solid structures and made of carbon steel.
The practical method of the invention is as follows:
firstly, placing the pouring gate tool 1 in a pouring gate mould for wax mould pressing.
And secondly, assembling the casting wax mould on the pouring gate tool 1 to form a wax mould module.
And thirdly, respectively installing the reinforcing frame 3 around the pouring gate tool 1, and fastening by using nuts to form a stable module frame.
And fourthly, erecting the integral module frame on the tool support 2.
And fifthly, rotating the integral module frame, coating the coating on the surface of the rotating wax mould, and fully and uniformly coating the wax mould.
Sixth, in order to avoid the accumulation of the coating material, the entire module frame is appropriately tilted right and left by lifting the first support wheel 4.
And seventhly, inserting the positioning pin 71 into the positioning hole to lock the tool at a fixed angle, so that drying of the shell is facilitated.
Claims (8)
1. The utility model provides a shell making frock of large-scale titanium alloy fired mold precision casting which characterized in that: the device comprises a pouring tool (1), a tool support (2), a reinforcing frame (3), two first supporting wheels (4), two second supporting wheels (5) and two rotating shafts (6) fixedly arranged at two side parts of the reinforcing frame (3), wherein the reinforcing frame (3) is rotatably arranged at the upper part of the tool support (2) through the two horizontally arranged rotating shafts (6), the pouring tool (1) comprises a straight pouring road rod (11) and a transverse pouring road rod (12) fixedly connected at the lower part of the straight pouring road rod (11), the pouring tool (1) is arranged in the reinforcing frame (3), the top part of the straight pouring road rod (11) and the transverse pouring road rod (12) are fixedly connected with the reinforcing frame (3), the two second supporting wheels (5) are fixedly arranged below the middle part of the tool support (2) side by side, and the vertical planes where the two second supporting wheels (5) are arranged are mutually perpendicular to the vertical planes where the two rotating shafts (6) are arranged, two first supporting wheel (4) symmetries set up the both ends at frock support (2), and two vertical plane in first supporting wheel (4) place and two vertical plane in rotation axis (6) place parallel arrangement each other, frock support (2) include horizontal mesa (21) and vertical support (22) of symmetry rigid coupling at its top both ends, and reinforcement frame (3) rotate through two rotation axis (6) and set up between two vertical support (22), all are provided with connecting rod (9) between every first supporting wheel (4) and vertical support (22) lateral wall, and every first supporting wheel (4) all rotate through connecting rod (9) and set up on vertical support (22).
2. The shell-making tool for the large-scale titanium alloy investment precision casting according to claim 1, which is characterized in that: the one end of every rotation axis (6) all with reinforcement frame (3) rigid coupling, the other end of every rotation axis (6) all rotates the setting on vertical support (22) upper portion, all is provided with positioner (7) on every vertical support (22), positioner (7) include locating pin (71) and positioning disk (72), locating pin (71) slide the upper portion that sets up at vertical support (22), and its slip direction is the same with the axis direction of rotation axis (6), positioning disk (72) suit is on rotation axis (6) and as an organic whole with rotation axis (6) rigid coupling, and a plurality of and locating pin (71) complex positioning hole (72-1) have been seted up along its circumference in positioning disk (72).
3. The shell-making tool for the large-scale titanium alloy investment precision casting according to claim 2, characterized in that: the number of the positioning through holes (72-1) is twelve, and the positioning through holes are uniformly distributed on the positioning plate (72).
4. The shell-making tooling for the large-scale titanium alloy investment precision casting according to claim 1, 2 or 3, which is characterized in that: one end of the rotating shaft (6) is welded with a connecting plate (8), and the connecting plate (8) is fixedly connected with the reinforcing frame (3) through a screw and a nut.
5. The shell-making tooling for the large-scale titanium alloy investment precision casting according to claim 1, 2 or 3, which is characterized in that: handles (10) are fixedly arranged at two end parts of the tool support (2) respectively.
6. The shell-making tooling for the large-scale titanium alloy investment precision casting according to claim 5, characterized in that: the reinforcing frame (3) is a cuboid structure, which comprises an upper frame (31) and a lower frame (32) which are arranged in an up-down parallel manner, two side frames (33) which are arranged in a left-right parallel manner, and two support rods (34) which are arranged in a front-back parallel manner and are vertically arranged, wherein the two ends of the upper frame (31) and the two ends of the lower frame (32) are fixedly connected through the two side frames (33), the two support rods (34) are both positioned between the two side frames (33) and are fixedly connected with the upper frame (31) and the lower frame (32), the top of the straight pouring channel rod (11) and the middle of the upper frame (31) are fixedly connected through nuts, and the cross pouring channel rod (12) and the lower frame (32) are fixedly connected through nuts.
7. The shell-making tooling for the large-scale titanium alloy investment precision casting according to claim 1, 2, 3 or 6, which is characterized in that: the first supporting wheel (4) and the second supporting wheel (5) are both rubber pneumatic wheels.
8. The shell-making tooling for the large-scale titanium alloy investment precision casting of claim 7, which is characterized in that: the rotating shaft (6) and the supporting rod (34) are both solid structures and made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593645.5A CN109604536B (en) | 2018-12-25 | 2018-12-25 | Shell making tool for large-scale titanium alloy investment precision casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593645.5A CN109604536B (en) | 2018-12-25 | 2018-12-25 | Shell making tool for large-scale titanium alloy investment precision casting |
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| Publication Number | Publication Date |
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| CN109604536A CN109604536A (en) | 2019-04-12 |
| CN109604536B true CN109604536B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811593645.5A Active CN109604536B (en) | 2018-12-25 | 2018-12-25 | Shell making tool for large-scale titanium alloy investment precision casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112355249B (en) * | 2020-10-29 | 2022-05-10 | 中国航发南方工业有限公司 | Coating and hanging tool for preparing shell sample and shell sample preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102744369B (en) * | 2012-07-25 | 2014-08-13 | 安徽应流铸业有限公司 | Ultra-large type evanescent mould precision-casting shell manufacturing tool and shell manufacturing process thereof |
| CN202894216U (en) * | 2012-09-25 | 2013-04-24 | 贵州安吉航空精密铸造有限责任公司 | Casting tooling for large-size and complicated framework type titanium alloy thin wall castings |
| CN106141102B (en) * | 2016-08-31 | 2018-05-22 | 北京星航机电装备有限公司 | A kind of nearly revolving body of titanium alloy casts shell frock processed |
| CN206483990U (en) * | 2016-12-28 | 2017-09-12 | 西安西工大超晶科技发展有限责任公司 | A kind of investment-casting is with being coated with frock |
| CN207709787U (en) * | 2017-12-28 | 2018-08-10 | 安徽应流航源动力科技有限公司 | A kind of shell tooling processed of high-temperature alloy casting model |
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