CN115673276A - Casting forming die for oil collecting shell and using method thereof - Google Patents
Casting forming die for oil collecting shell and using method thereof Download PDFInfo
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- CN115673276A CN115673276A CN202211472244.0A CN202211472244A CN115673276A CN 115673276 A CN115673276 A CN 115673276A CN 202211472244 A CN202211472244 A CN 202211472244A CN 115673276 A CN115673276 A CN 115673276A
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Abstract
The invention discloses a casting forming die of an oil collecting shell, belonging to the technical field of casting devices of thin-wall parts; the device comprises a rear seat and a front seat which are mutually matched and connected; an inner cavity die with the outer contour consistent with the shape of the inner cavity of the shell to be molded is arranged in the middle of the rear seat; a pouring channel, a front section riser, a middle section riser and a rear section riser are arranged on the front seat; one side of the front seat extends to the upper end face of the front seat, and the other end of the front seat is connected with a corresponding discharge chute of the shell mold seat; the shape of the inner cavity of the shell mold seat is consistent with the outer contour of the shell to be molded; a chill component is also arranged on the shell mould seat, and a molding rib vent groove is also formed at the top of the shell mould seat; the invention effectively solves the problems that the part is not formed locally and the internal structure is provided with shrinkage cavities and air holes in the casting production of the oil collecting shell at present.
Description
Technical Field
The invention relates to the technical field of thin-wall part casting devices, in particular to a casting forming die for an oil collecting shell and a using method thereof.
Background
The consistent structure of the thin-wall complex shell is a difficult device in the casting field, for example, when the oil collecting shell shown in fig. 1 and fig. 2 is produced by casting, because the product has the sealing performance requirement, parts are welded on other parts for use, certain performance is required, sand casting is selected to be not suitable for batch production, and the surface and internal quality of the formed parts cannot meet the requirement. Selecting a pressure casting part with a subcutaneous air hole which can not be welded; therefore, how to design a casting mold to prevent parts from being partially unshaped and prevent shrinkage cavities and air holes in internal tissues in the casting production process is a problem faced at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the casting forming die of the oil collecting shell is provided to solve the problems that the part is not formed locally and shrinkage holes and air holes are formed in the internal structure in the casting production of the oil collecting shell at present.
In order to solve the problems, the invention provides the following technical scheme:
a casting forming die of an oil collecting shell; the device comprises a rear seat and a front seat which are mutually matched and connected;
a first strip-shaped through hole is formed in the middle of the rear seat; a positioning block is arranged in the first strip-shaped through hole, and an inner cavity die is arranged on one side of the positioning block, which faces the front seat; the outer contour of the inner cavity die is consistent with the shape of the inner cavity of the shell to be molded;
a second strip-shaped through hole is formed in the middle of the front seat; a pouring gate, a front section riser, a middle section riser and a rear section riser are further arranged on the end surface of the front seat, which is opposite to the rear seat; one sides of the pouring gate, the front section riser, the middle section riser and the rear section riser extend to the upper end face of the front seat, and the other end of the pouring gate is connected with the second strip-shaped through hole; a shell mold seat is arranged at the second strip-shaped through hole; the shape of the inner cavity of the shell mold seat is consistent with the external contour of the shell to be molded; a discharge chute communicated with the pouring gate, the front section riser, the middle section riser and the rear section riser is further formed in the side wall of the shell mold seat; still be provided with the chiller subassembly on shell mould seat, and still open at the top of shell mould seat and have shaping muscle air vent groove.
Preferably, connecting holes are formed in the diagonal positions of the rear seat and the front seat; the rear seat and the front seat are connected through a functional rod piece arranged at the connecting hole.
Preferably, through holes are formed in the inner cavity die and the positioning block and are arranged along the height direction; the positioning block is connected with the inner cavity die through a vent plug; and the end part of the air vent plug at one side of the inner cavity mould and the surface of the corresponding position on the inner cavity mould form a smooth and continuous curved surface.
Preferably, a pre-riser is further arranged on the front seat between the pouring gate and the front-section riser. The pre-riser is communicated with the second strip-shaped through hole only at the inlet side of the middle part; the front section riser, the middle section riser and the rear section riser are all horn-shaped channels which are connected to the second strip-shaped through hole, are small in one side and large in the other side.
Preferably, the shell mold base comprises a front mold base, a middle mold base and a rear mold base which are connected with each other in a front-rear manner; the bottom of the front die seat, the middle die seat and the rear die seat are provided with rectangular block structures with cavities; the side end faces of the front mould seat, the middle mould seat and the rear mould seat are respectively provided with a discharge chute corresponding to the front section riser, the middle section riser and the rear section riser; and a discharge chute corresponding to the pouring channel is also arranged on the front mould seat.
Preferably, the number of the chiller assemblies is three, and the three chiller assemblies are respectively a front chiller arranged on the front die base, a middle chiller on the middle die base and a rear chiller on the rear die base; a positioning clamping groove is formed in the end part of one side of the front mould seat and the end part of the middle mould seat, which is opposite to the front-section riser and the middle-section riser; the front chilling block and the middle chilling block are arranged at the positioning clamping groove, and the rear chilling block is arranged at the tail of the inner cavity of the rear die base.
Preferably, the front seat is also provided with a positioning clamping groove at the position corresponding to the front chilling block and the middle chilling block, and the positioning clamping groove of the front seat and the front chilling block and the middle chilling block are provided with assembling holes; the front mould seat and the middle mould seat are detachably arranged on the front seat through assembly holes in the front chill and the middle chill and corresponding connecting pieces.
Preferably, the molding rib vent groove is arranged on the shell mold seat at a position corresponding to the rib plate on the shell to be molded; the shaping muscle air channel is the narrow bar groove structure of the wide downside of upside, and its groove width size that is connected to shell mould seat inner chamber one side is no longer than 0.2mm.
The invention also discloses a use method of the casting forming die of the oil collecting shell, which comprises the following steps:
s1, connecting and fixing an inner cavity mold and a positioning block through a vent plug, and installing an assembled component on a first strip-shaped through hole of a rear seat;
s2, mounting the front chill and the middle chill on positioning clamping grooves of a front mold seat and a middle mold seat, mounting the rear chill in a rear mold seat, placing the front mold seat and the middle mold seat on a second strip-shaped through hole of the front seat, and connecting the front chill and the middle chill with the front seat through hole-shaft matching; and then the rear mould seat is clamped into the rest mounting position of the second strip-shaped through hole.
S3, connecting the front seat with the rear seat through a functional rod piece, and enabling a riser to be arranged upwards;
s4, feeding from the inlet of the pouring channel after connection is completed so as to cast and form the shell;
and S5, demolding after the shell is molded.
The invention has the beneficial effects that:
the invention designs a casting forming die of an oil collecting shell, which designs a front seat, a rear seat, and corresponding inner cavity and shell die structures based on a metal gravity casting method; meanwhile, a forming rib through groove is formed in the die to ensure the forming of the cutting heat dissipation rib; the design position of a riser is optimized to perform feeding, so that no shrinkage cavity is produced in the internal organization of the part, and no shrinkage sink appears outside the part; in addition, a chilling block is placed at the lower part of the part where the local wall thickness is large so as to accelerate the cooling speed of the part, and prevent the part where the wall thickness is large from generating shrinkage cavities due to internal tissues and generating shrinkage cavities and from generating shrinkage sinks outside the part; the ventilation plug on the die cavity is used for preventing the places which are easy to collect gas from exhausting gas, and internal air holes and surface defects of parts are prevented from being generated. Meanwhile, the integral casting mold structure is optimized according to the design.
Drawings
FIG. 1 is a schematic view of the housing structure to be formed in this embodiment;
FIG. 2 is a schematic view of the apparatus of FIG. 1 from another perspective;
FIG. 3 is a schematic view of the assembly structure of the apparatus of the present embodiment;
FIG. 4 is a schematic view of the front seat of FIG. 3 with the front seat removed;
FIG. 5 is a schematic structural view of a rear seat in the present embodiment;
FIG. 6 is a schematic view of the structure of FIG. 3 with the rear seat removed;
FIG. 7 is a schematic structural view of the front seat in the present embodiment;
FIG. 8 is a schematic view of an assembly structure of the positioning block, the cavity mold and the housing mold in the present embodiment;
FIG. 9 is an assembled view of the positioning block and the cavity mold in the present embodiment;
FIG. 10 is a schematic structural view of the housing mold in the present embodiment;
FIG. 11 is a schematic view of the device of FIG. 10 from another perspective;
FIG. 12 is a schematic view of the device of FIG. 10 from another perspective;
FIG. 13 is an enlarged partial cross-sectional view of the location of the formed rib vent slots in this embodiment;
FIG. 14 is a schematic view of a preform as it is pre-formed after casting using the apparatus of the present embodiment;
FIG. 15 is a schematic view of the blank of FIG. 14 from another perspective;
description of the reference numerals: 1. the rear seat, 1A, a first strip-shaped through hole, 2, front work, 2A, a second strip-shaped through hole, 2B, a pouring gate, 2C, a front section riser, 2D, a middle section riser, 2E, a rear section riser, 2F, a pre-riser, 3, a positioning block, 4, an inner cavity mold, 5, a shell mold seat, 5A, a front mold seat, 5B, a middle mold seat, 5C, a rear mold seat, 5D, a vent groove, 6, a functional rod piece, 7, a vent plug, 8, front chill, 9, inter-chill, 10 and rear chill.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
example (b):
referring to fig. 1, the present embodiment provides a casting mold for an oil collecting case; the device comprises a rear seat 1 and a front seat 2 which are mutually matched and connected;
a first strip-shaped through hole 1A is formed in the middle of the rear seat 1; a positioning block 3 is arranged in the first strip-shaped through hole 1A, and an inner cavity die 4 is arranged on one side of the positioning block 3 facing the front seat 2; the outer contour of the inner cavity die 4 is consistent with the shape of the inner cavity of the shell to be molded;
a second strip-shaped through hole 2A is formed in the middle of the front seat 2; a pouring gate 2B, a front section riser 2C, a middle section riser 2D and a rear section riser 2E are further arranged on the end surface of the front seat 2, which is opposite to the rear seat 1; one sides of the pouring gate 2B, the front section riser 2C, the middle section riser 2D and the rear section riser 2E extend to the upper end face of the front seat 2, and the other end of the pouring gate is connected with the second strip-shaped through hole 2A; a shell mold seat 5 is arranged at the second strip-shaped through hole 2A; the shape of the inner cavity of the shell mold seat 5 is consistent with the outer contour of the shell to be molded; a discharge chute communicated with the pouring gate 2B, the front section riser 2C, the middle section riser 2D and the rear section riser 2E is further formed in the side wall of the shell mold seat 5; still be provided with the chill subassembly on shell mould seat 5, and still open shaping muscle air channel 5D at the top of shell mould seat 5.
Connecting holes are formed in the diagonal positions of the rear seat 1 and the front seat 2; the rear seat 1 and the front seat 2 are connected through a function rod piece 6 arranged at the connecting hole.
Through holes are formed in the inner cavity die 4 and the positioning block 3 and are arranged along the height direction; the positioning block 3 is connected with the inner cavity die 4 through a vent plug 7; and the end part of the vent plug 7 at one side of the inner cavity die 4 and the surface of the corresponding position on the inner cavity die 4 form a smooth and continuous curved surface.
A pre-riser 2F is also provided on the front seat 2 between the runner 2B and the front riser 2C. The pre-feeding head 2F is communicated with the second strip-shaped through hole 2A only at the inlet side of the middle part; the front section riser 2C, the middle section riser 2D and the rear section riser 2E are all horn-shaped channels which are connected to the second strip-shaped through hole 2A, are small in one side and large in the other side.
The shell mold base 5 comprises a front mold base 5A, a middle mold base 5B and a rear mold base 5C which are connected with each other in a front-rear manner; the bottom of the front mold seat 5A, the middle mold seat 5B and the rear mold seat 5C are provided with rectangular block structures with cavities; discharge grooves corresponding to the front-section riser 2C, the middle-section riser 2D and the rear-section riser 2E are respectively arranged on the side end surfaces of the front mold seat 5A, the middle mold seat 5B and the rear mold seat 5C; a discharge chute corresponding to the pouring gate 2B is also arranged on the front mould seat 5A.
The number of the chiller components is three, and the three chiller components are respectively a front chiller 8 arranged on the front die base 5A, a middle chiller 9 arranged on the middle die base 5B and a rear chiller 10 arranged on the rear die base 5C; a positioning clamping groove is formed in the end part of one side, opposite to the front-section riser 2C and the middle-section riser 2D, of the front mold seat 5A and the middle mold seat 5B; the front chilling block 8 and the middle chilling block 9 are arranged at the positioning clamping groove, and the rear chilling block 10 is arranged at the tail of the inner cavity of the rear mould seat 5C.
Positioning clamping grooves are also formed in the positions, corresponding to the front chilling blocks 8 and the middle chilling blocks 9, of the front seat 2, and assembling holes are formed in the positioning clamping grooves of the front seat 2, the front chilling blocks 8 and the middle chilling blocks 9; the front mould seat 5A and the middle mould seat 5B are detachably arranged on the front seat 2 through assembly holes on the front chill 8 and the middle chill 9 and corresponding connecting pieces.
The forming rib vent groove 5D is arranged at the position, corresponding to the rib plate on the shell to be formed, on the shell mold seat 5; shaping muscle air channel 5D is the narrow bar groove structure of the wide downside of upside, and its groove width size that is connected to 5 inner chamber one sides of shell mould seat is no longer than 0.2mm.
When the casting mold of the oil collecting housing in the present embodiment is used, the process may be performed with reference to the following steps:
s1, connecting and fixing an inner cavity mold 4 and a positioning block 3 through a vent plug 7, and installing an assembled component on a first strip-shaped through hole 1A of a rear seat 1;
s2, mounting the front chilling block 8 and the middle chilling block 9 on a positioning clamping groove of a front mould seat 5A and a middle mould seat 5B, mounting the rear chilling block 10 in a rear mould seat 5C, placing the front mould seat 5A and the middle mould seat 5B on a second strip-shaped through hole 2A of the front seat 2, and connecting the front chilling block 8 and the middle chilling block 9 with the front seat 2 through hole-shaft matching; after which the rear mold base 5C is snapped into the remaining mounting of the second strip-shaped through-hole 2A.
S3, connecting the front seat 2 with the rear seat 1 through a functional rod piece 6, and enabling a riser to be arranged upwards;
s4, feeding from the inlet of the pouring channel 2B after connection is finished so as to cast and form the shell;
and S5, demolding after the shell is molded.
Claims (9)
1. The utility model provides a casting forming die of collection oil casing which characterized in that: the device comprises a rear seat (1) and a front seat (2) which are mutually matched and connected;
a first strip-shaped through hole (1A) is formed in the middle of the rear seat (1); a positioning block (3) is arranged in the first strip-shaped through hole (1A), and an inner cavity die (4) is arranged on one side of the positioning block (3) facing the front seat (2); the outer contour of the inner cavity die (4) is consistent with the shape of the inner cavity of the shell to be molded;
a second strip-shaped through hole (2A) is formed in the middle of the front seat (2); a pouring gate (2B), a front section riser (2C), a middle section riser (2D) and a rear section riser (2E) are further arranged on the end surface of the front seat (2) opposite to the rear seat (1); one side of the pouring gate (2B), one side of the front section riser (2C), one side of the middle section riser (2D) and one side of the rear section riser (2E) extend to the upper end face of the front seat (2), and the other end of the middle section riser is connected with the second strip-shaped through hole (2A); a shell mold seat (5) is arranged at the second strip-shaped through hole (2A); the shape of the inner cavity of the shell mold seat (5) is consistent with the external contour of the shell to be molded; a discharge chute communicated with the pouring gate (2B), the front section riser (2C), the middle section riser (2D) and the rear section riser (2E) is further formed in the side wall of the shell mold seat (5); a chill component is also arranged on the shell mould seat (5), and a molding rib vent groove (5D) is also formed at the top of the shell mould seat (5).
2. The oil collecting housing casting mold according to claim 1, wherein: connecting holes are formed in the diagonal positions of the rear seat (1) and the front seat (2); the rear seat (1) is connected with the front seat (2) through a functional rod piece (6) arranged at the connecting hole.
3. The oil collecting housing casting mold according to claim 1, wherein: through holes are formed in the inner cavity die (4) and the positioning block (3) and are arranged along the height direction; the positioning block (3) is connected with the inner cavity die (4) through a vent plug (7); and the end part of the ventilation plug (7) at one side of the inner cavity die (4) and the surface of the corresponding position on the inner cavity die (4) form a smooth and continuous curved surface.
4. The oil collecting housing casting mold according to claim 1, wherein: a pre-riser (2F) is also arranged on the front seat (2) and between the pouring gate (2B) and the front riser (2C),
the pre-feeding head (2F) is communicated with the second strip-shaped through hole (2A) only at the inlet side of the middle part; the front section riser (2C), the middle section riser (2D) and the rear section riser (2E) are all horn-shaped channels which are connected to the second strip-shaped through hole (2A) and have small one side and large other side.
5. The oil collecting housing casting mold according to claim 1, wherein: the shell mold seat (5) comprises a front mold seat (5A), a middle mold seat (5B) and a rear mold seat (5C), wherein the front mold seat and the rear mold seat are mutually connected; the bottom of the front die seat (5A), the bottom of the middle die seat (5B) and the bottom of the rear die seat (5C) are provided with rectangular block structures; discharge chutes corresponding to a front section riser (2C), a middle section riser (2D) and a rear section riser (2E) are respectively arranged on the side end surfaces of the front mold seat (5A), the middle mold seat (5B) and the rear mold seat (5C); a discharge chute corresponding to the pouring gate (2B) is also arranged on the front mould seat (5A).
6. The oil collecting housing casting mold according to claim 1, wherein: the number of the chiller components is three, and the three chiller components are respectively a front chiller (8) arranged on the front die base (5A), a middle chiller (9) arranged on the middle die base (5B) and a rear chiller (10) arranged on the rear die base (5C); positioning clamping grooves are formed in the end parts of the front mold seat (5A) and the middle mold seat (5B) on the side opposite to the front section dead head (2C) and the middle section dead head (2D); the front chilling block (8) and the middle chilling block (9) are arranged at the positioning clamping groove, and the rear chilling block (10) is arranged at the tail of the inner cavity of the rear mould seat (5C).
7. The oil collecting housing casting mold according to claim 1, wherein: a positioning clamping groove is also arranged at the position of the front seat (2) corresponding to the front chilling block (8) and the middle chilling block (9), and assembling holes are formed in the positioning clamping groove of the front seat (2), the front chilling block (8) and the middle chilling block (9); the front mould seat (5A) and the middle mould seat (5B) are detachably arranged on the front seat (2) through assembly holes on the front chilling block (8) and the middle chilling block (9) and corresponding connecting pieces.
8. The oil collecting housing casting mold according to claim 1, wherein: the molding rib vent groove (5D) is arranged on the shell mold seat (5) at a position corresponding to a rib plate on the shell to be molded; shaping muscle air channel (5D) is the narrow bar groove structure of the wide downside of upside, and its groove width size that is connected to shell mould seat (5) inner chamber one side is no longer than 0.2mm.
9. The use method of the casting mold for the oil collecting shell according to any one of claims 1 to 8, wherein: the method comprises the following steps:
s1, connecting and fixing an inner cavity mold (4) and a positioning block (3) through a vent plug (7), and installing an assembled component on a first strip-shaped through hole (1A) of a rear seat (1);
s2, mounting the front chill (8) and the middle chill (9) on a positioning clamping groove of a front mold seat (5A) and a middle mold seat (5B), mounting the rear chill (10) in a rear mold seat (5C), then placing the front mold seat (5A) and the middle mold seat (5B) on a second strip-shaped through hole (2A) of the front seat (2), and connecting the front chill (8) and the middle chill (9) with the front seat (2) through hole-shaft matching; then clamping the rear die seat (5C) into the rest of the installation device of the second strip-shaped through hole (2A);
s3, connecting the front seat (2) with the rear seat (1) through a functional rod piece (6) to enable a riser to be arranged upwards;
s4, feeding from the inlet of the pouring channel (2B) after connection is finished so as to cast and mold the shell;
and S5, demolding after the shell is molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472244.0A CN115673276A (en) | 2022-11-23 | 2022-11-23 | Casting forming die for oil collecting shell and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211472244.0A CN115673276A (en) | 2022-11-23 | 2022-11-23 | Casting forming die for oil collecting shell and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115673276A true CN115673276A (en) | 2023-02-03 |
Family
ID=85056662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211472244.0A Pending CN115673276A (en) | 2022-11-23 | 2022-11-23 | Casting forming die for oil collecting shell and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115673276A (en) |
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2022
- 2022-11-23 CN CN202211472244.0A patent/CN115673276A/en active Pending
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