CN219665091U - Die for extrusion casting of shock absorber support - Google Patents
Die for extrusion casting of shock absorber support Download PDFInfo
- Publication number
- CN219665091U CN219665091U CN202320497584.2U CN202320497584U CN219665091U CN 219665091 U CN219665091 U CN 219665091U CN 202320497584 U CN202320497584 U CN 202320497584U CN 219665091 U CN219665091 U CN 219665091U
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- Prior art keywords
- runner
- sprue
- die
- width direction
- width
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 29
- 230000035939 shock Effects 0.000 title claims abstract description 29
- 238000005266 casting Methods 0.000 title abstract description 11
- 238000001125 extrusion Methods 0.000 title description 11
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000009716 squeeze casting Methods 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 abstract description 15
- 238000012797 qualification Methods 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a die for extruding and casting a shock absorber bracket, which comprises a fixed die frame, a fixed die core, a movable die core and a movable die frame which are sequentially arranged, wherein a liquid injection port, a runner and a product die cavity which are sequentially communicated are arranged between the fixed die core and the movable die core; the aluminum liquid impact on the step of the runner can be reduced, so that the gas rolling generated in the runner can be reduced, and the qualification rate of products is greatly improved.
Description
Technical Field
The utility model relates to the technical field of manufacturing dies of automobile parts, in particular to a die for extrusion casting of a shock absorber support.
Background
At present, with the rapid development of economy, automobiles have played an increasingly important role as important vehicles in people's daily lives. In the use process of the automobile, the safety of the automobile is a very important problem, and an automobile shock absorber is a key and indispensable part for ensuring the safety of the automobile, and the quality of the automobile shock absorber has direct influence on the automobile. Today, the requirements of people on the stability and the operability of automobiles are higher and higher, and the technical level of automobile shock absorbers is also required to be improved continuously. Therefore, the improvement of the development level of the automobile shock absorber in China is a problem which needs to be solved in the automobile suspension system in China, and is a problem which needs to be solved preferentially in the development planning of the automobile industry in China.
One of the vital component parts in the suspension of the shock absorber assembly, the shock absorber bracket, is used to attach the damping spring, which also requires us to continuously boost its mass. The shock absorber bracket 100 is shown in fig. 1a and 1b, which is extrusion cast by a die during the manufacturing process. The existing mould for extrusion casting of shock absorber support comprises a fixed mould frame, a fixed mould core, a movable mould frame and a movable mould core, wherein a runner and a mould cavity are arranged between the fixed mould core and the movable mould core, as shown in the runner simulation structures of fig. 1a and 1b, a runner 200 mainly comprises a main runner 201, a branch runner 202, a transition runner 203, an inner runner 204 and two cold material grooves 205 which are integrally formed, the two cold material grooves 205 are respectively positioned at two ends of the branch runner 202, and the transition is carried out between the main runner 201 and the branch runner 202, between the branch runner 202 and the transition runner 203, and between the transition runner 203 and the inner runner 204 through steps 206. The runner 200 in the die has the problem of more steps 206, aluminum liquid is impacted at the steps 206 after entering the main runner 201 in the extrusion casting process to generate coiled air, the aluminum liquid is rewound to generate coiled air when reaching the position of the cold material groove 205, and air is brought into a die cavity after passing through the inner gate 204, so that bubbles and air holes exist in the shock absorber bracket 100 obtained after heat treatment, the qualification rate of products is reduced, and the qualification rate is only within 10%.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a die for extrusion casting of a shock absorber support, which can reduce the impact of molten aluminum on steps of a runner, so that the gas rolling generated in the runner can be reduced, the quality of the shock absorber support can be ensured finally, and the qualification rate of the shock absorber support is greatly improved.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a mould for squeeze casting bumper shock absorber support, includes cover half frame, fixed mold core, movable mold core, the movable mold frame that sets gradually, fixed mold core with the movable mold core between be provided with annotate liquid mouth, runner, the product die cavity that communicates in proper order, its characterized in that: the runner include from bottom to top first sprue, second sprue, cross runner and header in proper order, first sprue with the same side of width direction of second sprue form indent R angle structure, the lower part width direction's of crossing the runner side be evagination circular arc structure, and with the same side of width direction of second sprue smooth natural transition, second sprue from bottom to top thickness taper, the runner from the export of second sprue to header set up with the mode of arc shrink, pass through the runner with the header be provided with many with the header runner that the product die cavity is linked together.
Further, the two sides of the first main runner in the width direction are slightly expanded from bottom to top to enable the width of the inlet of the first main runner to be smaller than the width of the outlet, and the two sides of the second main runner in the width direction are slightly expanded from bottom to top to enable the width of the inlet of the second main runner to be smaller than the width of the outlet, so that the same side face of the first main runner and the same side face of the second main runner in the width direction form a concave R angle structure.
Further, the inlet width of the first main runner is increased by 6-8 mm. In this structure, compared with the width of the existing main runner, the width is increased by 6-8 mm, and enough molten aluminum can be ensured to flow into the product mold cavity.
Further, the outlet of the second main flow channel is in a shape with a middle high and two sides low in the width direction. In this structure, the overall structure of the flow passage is made smoother.
Further, the inner runner is arranged on the movable mold core. In this structure, the mold core may be provided as the case may be.
Furthermore, three inner pouring runners are arranged and are uniformly distributed in the width direction. In this structure, through addding three evenly distributed's interior runner for the aluminium liquid that gets into the header can get into in the product die cavity fast.
Further, the liquid injection port is circular, the middle part of the inlet of the first main runner is rectangular, the two side parts of the inlet of the first main runner are symmetrical obtuse isosceles triangles, and the size of the liquid injection port is larger than that of the inlet of the first main runner.
Further, the product die cavity is used for extruding and casting the structural design of the shock absorber support according to the requirement. In this structure, because the runner structure of mould is improved, consequently the product die cavity is according to the structural design of the bumper shock absorber support of required squeeze casting can, applicable squeeze casting bumper shock absorber support of different structures.
Compared with the prior art, the utility model has the advantages that:
1) The two cooling grooves are removed, so that the connection of the second main runner and the through runner on the same side is smoother, the through runner is arranged in an arc shrinkage mode from the outlet of the second main runner to the in-runner, namely, no step exists between the second main runner and the through runner and between the through runner and the in-runner, the impact of aluminum liquid on the step of the existing runner is avoided, the aluminum liquid flows smoothly, the rolling gas generated by the aluminum liquid in the runner is reduced, the quality of the shock absorber bracket can be finally ensured, and the qualification rate of the shock absorber bracket is greatly improved.
2) The same side of the width direction of the first main runner and the second main runner forms a concave R angle structure, so that the joint of the first main runner and the second main runner on the same side is smoother, the thickness of the second main runner is gradually reduced from bottom to top, namely, no step exists between the first main runner and the second main runner, the impact of aluminum liquid on the step of the existing runner is avoided, the aluminum liquid flows smoothly, the rolling gas generated by the aluminum liquid in the runner is reduced, the quality of the shock absorber bracket can be finally ensured, and the qualification rate of the shock absorber bracket is greatly improved.
3) The arrangement of the inner pouring runner enables the molten aluminum entering the inner pouring gate to quickly enter the product die cavity.
4) The mold can enable the qualification rate of products to reach more than 90% through improving the flow passage.
Drawings
FIG. 1a is a schematic illustration of a damper bracket and a prior art flow channel simulation configuration;
FIG. 1b is a schematic diagram II of a shock absorber bracket and a conventional flow channel simulation structure;
FIG. 2a is a schematic view of a part of a mold according to the present utility model;
FIG. 2b is a schematic diagram of a portion of a mold according to the present utility model;
FIG. 3a is an exploded view of a portion of the structure of the mold of the present utility model;
FIG. 3b is a schematic exploded view of a part of the structure of the mold of the present utility model;
FIG. 4a is a schematic illustration of a damper bracket and flow channel simulation configuration in a mold of the present utility model;
FIG. 4b is a schematic diagram II of a damper bracket and a flow channel simulation structure in a mold of the present utility model;
FIG. 4c is a front view of a shock absorber bracket and flow channel simulation structure in the mold of the present utility model;
fig. 4d is a side view of a shock absorber bracket and flow channel simulation structure in the mold of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Embodiment one: as shown in fig. 2a to 4b, a die for extrusion casting a damper bracket comprises a fixed die frame (not shown in the drawings), a fixed die core 1, a movable die core 2 and a movable die frame (not shown in the drawings) which are sequentially arranged, a liquid injection port 3, a runner 4 and a product die cavity 5 which are sequentially communicated are arranged between the fixed die core 1 and the movable die core 2, the runner 4 comprises a first main runner 41, a second main runner 42, a runner 43 and an inner runner 44 which are sequentially communicated from bottom to top, the same side surface of the first main runner 41 and the second main runner 42 in the width direction forms an inner concave R-angle structure 45, the side surface of the runner 43 in the width direction is in an outer convex arc structure 46, the same side surface of the runner 43 in the width direction is in smooth natural transition with the same side surface of the second main runner 42, the thickness of the second main runner 42 is gradually reduced from bottom to top, the runner 43 is arranged in an arc shrinkage manner from the outlet of the second main runner 42 to the inner runner 44, and a plurality of inner runners 47 communicated with the product die cavity 5 are arranged through the runner 43 and the inner runner 44.
In this embodiment, the width direction two sides of the first main flow channel 41 are slightly expanded from bottom to top to make the width of the inlet of the first main flow channel 41 smaller than the width of the outlet, and the width direction two sides of the second main flow channel 42 are expanded from bottom to top to make the width of the inlet of the second main flow channel 42 smaller than the width of the outlet, so that the same side of the width direction of the first main flow channel 41 and the second main flow channel 42 form a concave R-angle structure 45.
In this embodiment, the outlet of the second main flow passage 42 has a shape with a middle high and two sides low in the width direction. In this structure, the overall structure of the flow passage 4 is made smoother.
In this embodiment, the inner runner 47 is provided on the movable mold core 2. In this structure, the mold core 1 may be provided as the case may be.
Embodiment two: other structures are the same as in embodiment one, except that: the inlet width of the first main flow path 41 is increased by 6 to 8mm, and the inlet width may be increased by 6mm when designed specifically. In this structure, compared with the existing main runner, the width is increased by 6-8 mm, and enough molten aluminum can be ensured to flow into the product mold cavity 5.
Embodiment III: other structures are the same as in embodiment one, except that: three restricted inner runners 47 are provided, and the three inner runners 47 are uniformly distributed in the width direction. In this structure, by adding three evenly distributed inner pouring channels 47, the molten aluminum entering the inner pouring gate 44 can quickly enter the product mold cavity 5.
In each of the above embodiments, the liquid injection port 3 is circular, the middle portion of the inlet of the first main flow channel 41 is rectangular, and the two side portions are symmetrical obtuse isosceles triangles, and the size of the liquid injection port 3 is larger than the size of the inlet of the first main flow channel 41.
In the various embodiments described above, the product mold cavity 5 is extrusion cast as desired for the structural design of the damper bracket. In this structure, the improved runner structure of the mold makes it possible to design the damper bracket 100 for extrusion casting of the product cavity 5 according to the requirement, and the structure can be applied to damper brackets of different extrusion casting structures.
Claims (8)
1. The utility model provides a mould for squeeze casting bumper shock absorber support, includes cover half frame, fixed mold core, movable mold core, the movable mold frame that sets gradually, fixed mold core with the movable mold core between be provided with annotate liquid mouth, runner, the product die cavity that communicates in proper order, its characterized in that: the runner include from bottom to top first sprue, second sprue, cross runner and header in proper order, first sprue with the same side of width direction of second sprue form indent R angle structure, the lower part width direction's of crossing the runner side be evagination circular arc structure, and with the same side of width direction of second sprue smooth natural transition, second sprue from bottom to top thickness taper, the runner from the export of second sprue to header set up with the mode of arc shrink, pass through the runner with the header be provided with many with the header runner that the product die cavity is linked together.
2. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the width direction both sides of first sprue slightly outwards expand from bottom to top makes the width of the entry of first sprue be less than the width of export, and the width direction both sides of second sprue outwards expand from bottom to top makes the width of the entry of second sprue be less than the width of export, thereby make first sprue with the same side of width direction of second sprue form indent R angle structure.
3. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the width of the inlet of the first main runner is increased by 6-8 mm.
4. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the outlet of the second main flow passage is in a shape with a middle high and two sides low in the width direction.
5. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the inner pouring runner is arranged on the movable mold core.
6. A die for squeeze casting a damper bracket as defined in claim 5, wherein: the inner pouring channels are arranged in three ways, and the three inner pouring channels are uniformly distributed in the width direction.
7. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the liquid injection port is circular, the middle part of the inlet of the first main runner is rectangular, the two side parts of the inlet of the first main runner are symmetrical obtuse isosceles triangles, and the size of the liquid injection port is larger than that of the inlet of the first main runner.
8. A die for squeeze casting a damper bracket as defined in claim 1, wherein: the structural design of the shock absorber support is extruded and cast by the product die cavity according to the requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320497584.2U CN219665091U (en) | 2023-03-10 | 2023-03-10 | Die for extrusion casting of shock absorber support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320497584.2U CN219665091U (en) | 2023-03-10 | 2023-03-10 | Die for extrusion casting of shock absorber support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665091U true CN219665091U (en) | 2023-09-12 |
Family
ID=87927039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320497584.2U Active CN219665091U (en) | 2023-03-10 | 2023-03-10 | Die for extrusion casting of shock absorber support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665091U (en) |
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2023
- 2023-03-10 CN CN202320497584.2U patent/CN219665091U/en active Active
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