CN222856659U - Casting die of automobile motor end cover - Google Patents
Casting die of automobile motor end cover Download PDFInfo
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- CN222856659U CN222856659U CN202421796087.3U CN202421796087U CN222856659U CN 222856659 U CN222856659 U CN 222856659U CN 202421796087 U CN202421796087 U CN 202421796087U CN 222856659 U CN222856659 U CN 222856659U
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- riser
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- end cover
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Abstract
本申请公开了一种汽车电机端盖的铸造模具，包括模具本体、内浇道以及冒口，模具本体内具有对产品进行成型的型腔，内浇道位于模具本体内并位于型腔的上方，冒口设置于模具本体内并适于将内浇道与型腔进行连通；在进行浇铸时，内浇道内的金属液适于在重力作用下从冒口流入至型腔。本申请的有益效果：通过将内浇道设置于上方，并且金属液在重力作用下依次从内浇道以及冒口流入到型腔内，进而可以使得冒口处的金属液会最后进行凝固，因此可以使得产品浇铸时金属液易充满型腔，可避免浇不足和冷隔等缺陷；而且另一方面顶部温度高，底部温度低，有利于实现顺序凝固和冒口补缩，同时也能使得金属液使用的更少，节省成本。
The present application discloses a casting mold for an automobile motor end cover, comprising a mold body, an ingates and a riser. The mold body has a cavity for molding a product. The ingates are located in the mold body and above the cavity. The risers are arranged in the mold body and are suitable for connecting the ingates with the cavity. When casting, the molten metal in the ingates is suitable for flowing from the risers into the cavity under the action of gravity. The beneficial effects of the present application are as follows: by arranging the ingates at the top, and the molten metal flows into the cavity from the ingates and the risers in sequence under the action of gravity, the molten metal at the risers can be solidified last, so that the molten metal can easily fill the cavity when the product is cast, and defects such as insufficient pouring and cold shut can be avoided. On the other hand, the top temperature is high and the bottom temperature is low, which is conducive to sequential solidification and riser shrinkage compensation, and can also make the use of less molten metal and save costs.
Description
Technical Field
The application relates to the technical field of molds, in particular to a casting mold for an automobile motor end cover.
Background
In the casting and forming process of products, the function of a riser is crucial, a cavity of the riser is a cavity for storing liquid metal, the metal is supplied when the casting is formed, the effects of preventing shrinkage cavity, exhaust and slag collection are achieved, and the main function of the riser is feeding. Riser heads with different design functions are different in form, size and arrangement positions.
In the prior art, as shown in fig. 1, an end cover product of an automobile motor adopts a bottom pouring type pouring system, namely a pouring system with an inner pouring gate arranged at the bottom or at the bottom side of a casting pouring position, so that molten metal enters a cavity from a lower pouring gate at the bottom, and further the end cover product has the defects that the riser part of the end cover product finally enters the molten metal, so that the volume of the riser after molding is larger to ensure the feeding of the riser to the molded product, and further the consumed materials are excessive, and the cooling efficiency is low. Therefore, a casting die for an automobile motor end cover is provided for solving the technical problems.
Disclosure of utility model
One of the purposes of the application is to provide a casting mold for an automobile motor end cover.
The technical scheme includes that the casting die for the motor end cover of the automobile comprises a die body, an ingate and a riser, wherein a cavity for molding a product is formed in the die body, the ingate is located in the die body and located above the cavity, the riser is arranged in the die body and is suitable for communicating the ingate with the cavity, and molten metal in the ingate is suitable for flowing into the cavity from the riser under the action of gravity during casting.
Preferably, the number of the riser is plural, and the riser is arranged in the die body in a dispersed manner.
Preferably, the inner runner extends along the outer contour of the die cavity.
Preferably, the feeder comprises a first feeder adapted to communicate the ingate with the cavity and a second feeder in communication with the cavity and isolated from the first feeder.
Preferably, the ingate includes an inlet channel and a flow channel, the flow channel communicates with the riser, the inlet channel is arranged in a bent manner, the bottom of the inlet channel communicates with the flow channel, and then a first buffer zone for flowing molten metal is formed at the bent portion of the inlet channel.
Preferably, the bottom end of the flow channel is communicated with the top end of the bottom of the inlet channel, so that a second buffer zone for flowing molten metal is formed at the joint of the flow channel and the inlet channel.
Preferably, the inlet channel and the flow channel are both arranged on the lower die or the upper die.
Preferably, the inlet channel is disposed on the lower die, and the flow channel is disposed on the upper die.
Preferably, the inlet channel is disposed on the upper die, and the flow channel is disposed on the lower die.
Preferably, the size of the top opening of the entrance way decreases from top to bottom.
Compared with the prior art, the application has the beneficial effects that:
According to the utility model, the inner pouring gate is arranged above, and the molten metal flows into the cavity from the inner pouring gate and the riser in sequence under the action of gravity, so that the molten metal at the riser can be solidified finally, the cavity can be easily filled with the molten metal during product casting, the defects of insufficient casting, cold insulation and the like can be avoided, and on the other hand, the temperature of the top is high, the temperature of the bottom is low, the sequential solidification and riser feeding can be realized, the use of the molten metal is less, and the cost is saved.
Drawings
Fig. 1 is a schematic diagram of a conventional motor end cap product structure according to the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the present utility model.
Fig. 3 is a schematic cross-sectional view of the present utility model.
Fig. 4 is a schematic view of the upper die structure of the present utility model.
Fig. 5 is a schematic view of the lower die structure of the present utility model.
Fig. 6 is a schematic view of the motor end cap of the present utility model after molding.
FIG. 7 is a schematic view of the structure of the pouring gate and riser of the present utility model after solidification of molten metal.
The drawing shows that the mold comprises a motor end cover 1, a thickening part 101, a mounting part 2, a mold body 201, an upper mold 202, a lower mold 3, an inner runner 301, an inlet channel 3011, a vertical channel 3012, a horizontal channel 302, a flow channel 4, a riser 401, a first riser 4011, a first riser block 402, a second riser block 4022, a second riser block 5 and a runner block.
Detailed Description
The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
In one preferred embodiment of the present application, as shown in fig. 1 to 7, a casting mold for an end cover 1 of an automotive motor comprises a mold body 2, an ingate 3 and a riser 4, wherein the mold body 2 is internally provided with a cavity for molding a product, the ingate 3 is positioned in the mold body 2 and above the cavity, the riser 4 is arranged in the mold body 2, and the ingate 3 is communicated with the cavity under the action of the riser 4.
It will be appreciated that during casting, molten metal is injected from the upper runner 3 and then flows into the cavity from the runner 3 and riser 4 in sequence by gravity. It should be noted that, since the high-temperature molten metal passes through the riser 4, the riser 4 is in a high-temperature state and the molten metal is flowing, that is, the molten metal is still and filled in the riser 4 only after filling the cavity, so that the molten metal at the riser 4 is solidified finally, the molten metal is easy to fill the cavity when the (motor end cover 1) product is cast, the defects of insufficient casting, cold insulation and the like can be avoided, and on the other hand, the top temperature is high, the bottom temperature is low, the sequential solidification and riser feeding can be realized, the molten metal is less to use, and the cost is saved.
Compared with the prior art, the (motor end cover 1) product adopts the bottom pouring mode, namely, the ingate 3 is arranged from bottom to top, molten metal can enter the cavity first and then enter the riser 4 from the cavity, so that the molten metal at the riser 4 can not be rapidly cooled and solidified, the riser 4 is enough to be arranged, namely, the riser 4 is required to store enough molten metal at the moment, so that the molten metal is wasted, oxidizing slag is easily generated, defects such as cold insulation and insufficient casting are generated, and the problems such as sand holes are easily generated when the top of the riser is large in plane are solved.
In one embodiment of the present application, as shown in fig. 1, since the motor end cap 1 is thick, a plurality of risers 4 are required to be provided therein, and the plurality of risers 4 may be distributed in the mold body 2. It will be appreciated that the motor end cap 1 product may be fed through a plurality of risers 4 to ensure the quality and integrity of the casting.
The size of each riser 4 can be set according to practical situations, so that metal can be fully supplemented during casting, and the occurrence of voids and defects is reduced. Illustratively, as shown in fig. 1, a mounting portion 102 is provided on the outside of the motor end cap 1, so that the riser 4 therein is provided larger than the remaining risers 4, as shown by the corresponding riser 4 at b in fig. 4.
Further, in order to allow the molten metal to flow into the cavity sufficiently uniformly in the ingate 3, the ingate 3 may be provided so as to extend along the outer contour of the cavity. The product of the application is a motor end cover 1, which is in a disc-shaped structure, so that the inner pouring gate 3 can be arranged into a circular ring shape at the moment, so that molten metal can uniformly enter the cavity through corresponding (circumferentially dispersed) risers 4, meanwhile, the molten metal can stably enter the cavity from multiple directions due to the arrangement of the multiple risers 4, and the molten metal can not splash, so that the stability during pouring is ensured. Similarly, if the product is rectangular, trapezoid, etc., the corresponding ingate 3 can be in a corresponding rectangular or trapezoid annular structure.
Of course, in the case that the thickness of some products is not very thick, the shrinkage of the products can be well coped with by adopting the inner runner 3 in the form of the ring and the circumferentially distributed riser 4. However, in some thicker products, for example, the motor end cover 1 of the present application has a thickened portion 101 at the outer portion thereof, so that the corresponding riser 4 is larger, and therefore if molten metal directly flows into the cavity from the riser 4 at this time, the molten metal will be subjected to a larger impact force to flow into the cavity, and further the molten metal will splash, which affects the processing quality. The mounting portion 102 is relatively thin, and only the area of the riser 4 is relatively large, but the thickness (height) thereof is relatively small, and a part of the core block of the molding mounting portion 102 is located in the riser 4, so that the impact force of the molten metal flowing out of the riser 4 is not excessively large, and the molten metal can be stably introduced into the cavity.
Thus, in order to solve the above-mentioned technical problem, according to one embodiment of the present application, as shown in fig. 4, the riser 4 includes a first riser 401 and a second riser 402, the first riser 401 may communicate the ingate 3 with the cavity, and the second riser 402 may communicate with the cavity and be isolated from the first riser 401.
It will be appreciated that for the first riser 401, molten metal still enters the cavity from the first riser 401. For the second riser 402, after the cavity is filled with molten metal, the molten metal enters the second riser 402 from the cavity, so that impact splashing of the molten metal can be prevented, the mold filling is stable, the metal oxidation is light, and further the product molding quality can be greatly improved.
As shown in fig. 6, the pouring gate block 5 formed by solidifying the molten metal in the pouring gate 3 is solidified in the same way as the first riser 401 to form the first cap 4011, and the second riser 402 to form the second cap 4022. As shown in fig. 7, the shape of the inner runner 3 and the riser 4 is formed by solidifying the molten metal in the inner runner 3 and the riser 4 after the motor end cover 1 is removed, and of course, the shape corresponds to the arrangement mode between the inner runner 3 and the riser 4 in the mold body 2.
In one embodiment of the present application, as shown in fig. 3, the ingate 3 includes an inlet channel 301 and a flow channel 302, the flow channel 302 communicates with the riser 4, the inlet channel 301 is bent, and the bottom communicates with the flow channel 302, so that a first buffer zone for flowing molten metal is formed at the bent portion of the inlet channel 301. The inlet 301 and the flow channel 302 are, as their names suggest, the inlet 301 being a portion where molten metal is poured in, and the flow channel 302 being a portion where molten metal is poured in, and the feeder 4 and the cavity being fed with molten metal.
Specifically, as shown in fig. 3, the inlet channel 301 includes a vertical channel 3011 and a horizontal channel 3012 which are communicated, and the vertical channel 3011 and the horizontal channel 3012 are in an approximately L-shaped structure, and the connection between the two is in a bending arrangement, so that when molten metal enters the horizontal channel 3012 from the vertical channel 3011, the molten metal can receive a certain resistance due to the bending arrangement of the connection, and the molten metal enters the horizontal channel 3012 so that the flow rate of the molten metal is reduced. Of course, the vertical channel 3011 can also be arranged in an inclined manner (not vertically), so that the impact force of molten metal can be further reduced.
As shown in fig. 3, the size of the top opening of the entrance 301 decreases from top to bottom. For example, the top end opening of the inlet channel 301 may be provided in a horn-like structure, so as to make the injection of the molten metal from the inlet channel 301 into the ingate 3 smoother and more convenient.
Further, as shown in fig. 3, the bottom end of the flow channel 302 is communicated with the top end of the bottom of the inlet channel 301, so that a second buffer zone for flowing the molten metal is formed at the connection part of the flow channel 302 and the inlet channel 301.
Specifically, as shown in fig. 3, that is, the cross channel 3012 is located at the bottom end of the flow channel 302, so that after the molten metal enters the cross channel 3012 from the vertical channel 3011, the molten metal flows up into the flow channel 302 from the cross channel 3012 at the bottom, and in this process, the molten metal needs to overcome its own gravity to flow up, so that the flow rate of the molten metal is reduced, and then the second buffering effect is achieved, so that the subsequent molten metal does not have excessive impact force after entering the cavity, and the product forming quality is improved.
In this embodiment, the ingate 3 is specifically arranged in a plurality of ways, including but not limited to the following ways:
In one embodiment, the inlet 301 and the flow channel 302 are disposed on the lower die 202.
It will be appreciated that as shown in fig. 6, the product (motor end cap 1), runner block 5, first riser 4011 and second riser 402 are located within lower die 202 at this time, which makes it difficult to post-demold the product.
In the second mode, the inlet channel 301 and the flow channel 302 are both disposed on the upper die 201.
It will be appreciated that as shown in fig. 6, the product (motor end cap 1), runner block 5, first riser 4011 and second riser 402 are located within upper die 201, which makes the product difficult to open the die body 2.
In the third mode, the inlet channel 301 is provided in the lower die 202, and the flow channel 302 is provided in the upper die 201.
In the fourth mode, the inlet channel 301 is provided in the upper die 201, and the flow channel 302 is provided in the lower die 202.
For the third and fourth modes, namely, a part of the ingate 3 is positioned on the upper die 201 and a part of the ingate 3 is positioned on the lower die 202, so that the ingate 3 is reasonably distributed, namely, all pouring blocks 5 solidified at the later stage are not separately adhered to the upper die 201 or the lower die 202, the overall structure of the die is more reasonable, the follow-up die opening and demoulding processes can be smoother, and the production efficiency is greatly improved. Of course, the specific mode is selected, and those skilled in the art can set the mode according to the actual situation.
The working principle of the utility model is as follows:
Molten metal is injected from the opening of the ingate 3, then the molten metal enters the transverse passage 3012 from the vertical passage 3011 and is buffered for the first time, then the molten metal flows into the flow passage 302 from the transverse passage 3012 at the bottom and is buffered for the second time, the molten metal in the flow passage 302 enters the cavity from the different first riser 401, after the cavity is filled with the molten metal, the molten metal in the cavity enters the second riser 402, the molten metal outside the cavity enters the first riser 401, and finally the required product (the motor end cover 1) can be obtained after cooling and solidification.
The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421796087.3U CN222856659U (en) | 2024-07-29 | 2024-07-29 | Casting die of automobile motor end cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421796087.3U CN222856659U (en) | 2024-07-29 | 2024-07-29 | Casting die of automobile motor end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222856659U true CN222856659U (en) | 2025-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421796087.3U Active CN222856659U (en) | 2024-07-29 | 2024-07-29 | Casting die of automobile motor end cover |
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| CN (1) | CN222856659U (en) |
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- 2024-07-29 CN CN202421796087.3U patent/CN222856659U/en active Active
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