CN203184598U - Hub-casting mould for eliminating frontal needle shrinkage - Google Patents
Hub-casting mould for eliminating frontal needle shrinkage Download PDFInfo
- Publication number
- CN203184598U CN203184598U CN 201320220292 CN201320220292U CN203184598U CN 203184598 U CN203184598 U CN 203184598U CN 201320220292 CN201320220292 CN 201320220292 CN 201320220292 U CN201320220292 U CN 201320220292U CN 203184598 U CN203184598 U CN 203184598U
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- wheel hub
- mould
- spoke
- air discharge
- discharge duct
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Abstract
The utility model discloses a hub-casting mould for eliminating frontal needle shrinkage, which comprises an upper mould, a bottom mould and a side mould, wherein the upper mould, the bottom mould and the side mould define a hub mould cavity; and more than one gas-discharging slot is arranged in the inner wall of the bottom mould corresponding to the front surface of each spoke, and each gas-discharging slot extends in the length direction of the spoke. During casting processing, gas generated in the mould-filling process of a liquid alloy can be converged into the gas-discharging slots and then be discharged out of the gas-discharging slots, so as to eliminate the frontal needle-shrinkage phenomenon of a hub; and marks or projections which are generated on the surface of a casting due to the arrangement of the gas-discharging slots and correspond to the line types of the gas-discharging slots can be removed in the subsequent working procedure of lathing without influencing the appearance and the performance of the hub. The spokes of a hub product manufactured by utilizing the hub-casting mould have high frontal glossiness, and the strength is also guaranteed.
Description
Technical field
The utility model relates to the wheel hub processing technique field, particularly a kind of wheel hub casting mould of eliminating front pin contracting.
Background technology
Existing wheel hub processing mode adopts casting or die casting usually, casting mould generally comprises patrix, bed die and Bian Mo, and the three surrounds a wheel hub die cavity, and patrix is mainly to the back of the body chamber profile effect moulding of wheel hub, bed die is to the positive profile effect moulding of wheel hub, and the limit mould is to wheel rim profile effect moulding.Yet in process, because the filling velocity of liquid alloy is exceedingly fast, the gas in the die cavity is difficult to get rid of fully, and therefore often there is the phenomenon of front pin, shrinkage cavity in the wheel hub that processes, not only influences the outward appearance of product, has also had a strong impact on the quality of product.
Summary of the invention
The technical problems to be solved in the utility model is: adopt the mode that air discharge duct is set, make wheel hub gas in the die cavity in forming process can import air discharge duct, thereby eliminate the phenomenon of wheel hub front pin, shrinkage cavity.
For addressing the above problem, the technical scheme that the present invention takes is specially: a kind of wheel hub casting mould of eliminating front pin contracting, comprise patrix, bed die and Bian Mo, and described patrix, bed die and Bian Mo surround a wheel hub die cavity; Bed die carries out moulding to the positive profile of wheel hub; Comprise the spoke die cavity in the wheel hub die cavity, separated by concavo-convex cooperation of patrix and bed die between each spoke die cavity, to form wheel hub spoke window; It is characterized in that in each spoke die cavity, the bed die die cavity wall in corresponding spoke front is provided with 1 above air discharge duct, each air discharge duct extends in the direction from the wheel hub center to wheel rim.
In the utility model, described wheel hub die cavity also comprises the wheel hub earflap annular groove that is arranged at the bed die peripheral part, and each air discharge duct extends to wheel hub earflap annular groove edge from wheel hub centre bore edge.
Further, the cross section of air discharge duct described in the utility model is V-type, can make in the easier remittance air discharge duct of gas that produces in the liquid alloy cavity filling process.
Further, the top end opening width range of air discharge duct described in the utility model is: 0.8～1.2mm, and depth bounds exists: 0.5-1mm; This scope can have influence on the intensity of the corresponding air discharge duct part in foundry goods spoke surface in the time of both can having avoided the air discharge duct opening greatly dark, the while can not influence exhaust performance because opening is less again.
The beneficial effects of the utility model are: add man-hour in casting, the gas that produces in the liquid alloy cavity filling process can converge to air discharge duct, thereby avoids spoke front pin contracting phenomenon; Cast(ing) surface owing to the setting of air discharge duct produce, with the corresponding marking of air discharge duct line style or projection, can in follow-up turner operation, remove, can not have influence on outward appearance and the performance of wheel hub.The positive glossiness height of the wheel hub product spoke that utilizes the utility model to produce, and intensity has also obtained guarantee.
Description of drawings
Figure 1 shows that mould structure schematic diagram of the present utility model; Wherein: 1-bed die, 2-patrix, 3-limit mould, 4-wheel hub die cavity, 5-spoke window mould;
Figure 2 shows that bed die structural representation of the present utility model; Wherein: 1-bed die, 13-wheel hub centre bore, 11-air discharge duct, 12-wheel hub earflap annular groove;
Figure 3 shows that the plan structure schematic diagram of bed die among Fig. 2, wherein 14-spoke die cavity.
The specific embodiment
Be described further below in conjunction with the drawings and specific embodiments.
The wheel hub casting mould of elimination of the present utility model front pin contracting comprises patrix 2, bed die 1 and Bian Mo 3 as shown in Figure 1, and above-mentioned three surrounds a wheel hub die cavity 4, respectively to wheel hub back of the body chamber profile, front and wheel rim profile effect moulding.Comprise the spoke die cavity in the wheel hub die cavity 4, separated by concavo-convex cooperation of patrix and bed die between each spoke die cavity that the concavo-convex mating part of patrix and bed die forms spoke window mould.In conjunction with Fig. 2 and shown in Figure 3, on the bed die that surrounds spoke die cavity 14 1 inwall in the utility model, the part in corresponding spoke front is provided with air discharge duct 11, air discharge duct 11 is provided with many, each bar air discharge duct 11 extends in the direction from the wheel hub center to wheel rim, be specially, described wheel hub die cavity also comprises the wheel hub earflap annular groove 12 that is arranged at the bed die peripheral part, and each air discharge duct 11 extends to wheel hub earflap annular groove 12 edges from wheel hub centre bore 13 edges.
For the setting of the air discharge duct 11 that makes had both made things convenient for the remittance of the gas that produces in the liquid alloy cavity filling process, be unlikely to have influence on the performance in spoke front again, the upper end open width range of described air discharge duct 11 is: 0.8～1.2mm, depth bounds exists: 0.5～1mm.Simultaneously the cross section of air discharge duct 11 can be set to V-type, and perhaps arc etc. is beneficial to other shapes that gas imports.
Claims (5)
1. a wheel hub casting mould of eliminating front pin contracting comprises patrix, bed die and Bian Mo, and described patrix, bed die and Bian Mo surround a wheel hub die cavity; Bed die carries out moulding to the positive profile of wheel hub; Comprise the spoke die cavity in the wheel hub die cavity, separated by concavo-convex cooperation of patrix and bed die between each spoke die cavity, to form wheel hub spoke window; It is characterized in that in each spoke die cavity, the bed die die cavity wall in corresponding spoke front is provided with 1 above air discharge duct, each air discharge duct extends in the direction from the wheel hub center to wheel rim.
2. the wheel hub casting mould of elimination front pin contracting according to claim 1 is characterized in that described wheel hub die cavity also comprises the wheel hub earflap annular groove that is arranged at the bed die peripheral part, and each air discharge duct extends to wheel hub earflap annular groove edge from wheel hub centre bore edge.
3. the wheel hub casting mould of elimination front pin contracting according to claim 1 and 2 is characterized in that the cross section of described air discharge duct is V-type.
4. the wheel hub casting mould of elimination front pin contracting according to claim 1 and 2 is characterized in that the top end opening width range of described air discharge duct is: 0.8～1.2mm.
5. the wheel hub casting mould of elimination front pin contracting according to claim 1 and 2 is characterized in that the depth bounds of described air discharge duct is: 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220292 CN203184598U (en) | 2013-04-26 | 2013-04-26 | Hub-casting mould for eliminating frontal needle shrinkage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220292 CN203184598U (en) | 2013-04-26 | 2013-04-26 | Hub-casting mould for eliminating frontal needle shrinkage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203184598U true CN203184598U (en) | 2013-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320220292 Expired - Fee Related CN203184598U (en) | 2013-04-26 | 2013-04-26 | Hub-casting mould for eliminating frontal needle shrinkage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203184598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907535A (en) * | 2015-06-03 | 2015-09-16 | 常州理工科技有限公司 | Aluminum alloy hub casting die |
| CN106392041A (en) * | 2016-11-26 | 2017-02-15 | 中信戴卡股份有限公司 | Bottom die body of wheel die |
-
2013
- 2013-04-26 CN CN 201320220292 patent/CN203184598U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907535A (en) * | 2015-06-03 | 2015-09-16 | 常州理工科技有限公司 | Aluminum alloy hub casting die |
| CN104907535B (en) * | 2015-06-03 | 2017-05-10 | 常州理工科技股份有限公司 | Aluminum alloy hub casting die |
| CN106392041A (en) * | 2016-11-26 | 2017-02-15 | 中信戴卡股份有限公司 | Bottom die body of wheel die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20160426 |