CN218134811U

CN218134811U - Compressor front end cover casting mould

Info

Publication number: CN218134811U
Application number: CN202222132102.1U
Authority: CN
Inventors: 张雅; 张维峰
Original assignee: Jiangsu Pessen Precision Machinery Co ltd
Current assignee: Jiangsu Pessen Precision Machinery Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-12-27
Anticipated expiration: 2032-08-12

Abstract

The disclosure relates to the technical field of part casting molds, in particular to a compressor front end cover casting mold, which comprises a lower mold, an upper mold, a casting assembly and an exhaust assembly; the lower die and the upper die are arranged oppositely, a boss is arranged on the upper bulge of the lower die, and a lower forming cavity is arranged on the boss; the upper die is provided with a concave groove, and an upper forming cavity is arranged in the concave groove; the casting assembly is arranged at one end of the lower die, the exhaust assembly is arranged at the other end of the lower die, and a casting channel for communicating the casting assembly with the lower molding cavity and an exhaust channel for communicating the exhaust assembly with the lower molding cavity are arranged on the butt joint surface of the concave groove and the boss; the casting channel comprises two first branch channels which are symmetrically arranged, each first branch channel is provided with at least two second branch channels communicated with the lower forming cavity, and the at least two second branch channels are arranged in parallel. According to the aluminum liquid forming device, the aluminum liquid channel is lengthened, the feeding direction is changed, gas in the forming cavity is reduced, and the product forming quality is improved.

Description

Compressor front end cover casting mould

Technical Field

The utility model relates to a part casting mould technical field especially relates to a compressor front end cover casting mould.

Background

Casting refers to a mode of casting liquid metal into a mold, and obtaining a part or a blank after the liquid metal is cooled and solidified; in the process of forming, the surface of the end cover has defects due to the stay of gas in a forming cavity of the die;

in the related art, in order to timely exhaust the gas in the mold forming cavity, a plurality of exhaust bags are arranged on one side of the mold forming cavity opposite to the casting opening, and the gas in the mold forming cavity is exhausted through the exhaust bags, so that the influence of the gas in the mold forming cavity on a product is reduced;

however, the inventors found in the course of carrying out the above embodiment that the air bubbles in the mold cavity cannot be completely discharged even if the evacuation bag is provided;

the information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of at least one of the above technical problems, the present disclosure provides a compressor front end cover casting mold, which reduces the rolling of molten aluminum entering the mold through the improvement of a pouring gate liquid inlet channel structure, thereby reducing the generation of air holes.

According to a first aspect of the disclosure, a compressor front end cover casting mold is provided, which includes a lower mold, an upper mold, a casting component and an exhaust component;

the lower die and the upper die are arranged oppositely, a boss is convexly arranged on the upper die on the surface of the lower die opposite to the upper die, and a lower forming cavity is arranged on the boss;

the upper die is provided with a concave groove corresponding to the boss, and an upper molding cavity corresponding to the lower molding cavity is arranged in the concave groove;

the casting assembly is arranged at one end of the lower die, the exhaust assembly is arranged at the other end of the lower die, and a casting channel for communicating the casting assembly with the lower molding cavity and an exhaust channel for communicating the exhaust assembly with the lower molding cavity are arranged on the butt joint surface of the concave groove and the boss;

the casting channel comprises two first branch channels which are symmetrically arranged, each first branch channel is provided with at least two second branch channels communicated with the lower molding cavity, and the at least two second branch channels are arranged in parallel.

In some embodiments of the present disclosure, the first branch channel is disposed on the concave groove, the upper molding cavity and the lower molding cavity are both circular structures, and an extending direction of the first branch channel is parallel to a tangent line of the upper molding cavity.

In some embodiments of the present disclosure, the casting channel further includes a casting groove disposed on the lower mold, one end of the casting groove is connected to the casting assembly, and the other end is communicated with the first branch channel.

In some embodiments of the present disclosure, the second branch channel extends to an edge of the lower molding cavity and communicates with the lower molding cavity.

In some embodiments of the disclosure, the exhaust passage includes an exhaust groove disposed on the boss and an exhaust passage communicated with the exhaust groove at one end, and the other end of the exhaust passage is communicated with an exhaust component.

In some embodiments of the present disclosure, the exhaust groove and the exhaust passage are provided in plurality around the lower molding cavity, and at a position at a side opposite to the casting passage.

In some embodiments of the disclosure, the exhaust passage further comprises an exhaust bag arranged on the concave groove, one end of the exhaust bag is communicated with the lower molding cavity, and the other end of the exhaust bag is communicated with the exhaust groove.

In some embodiments of the present disclosure, the exhaust assembly includes an exhaust wave plate and a top cover, the top cover has a wave groove corresponding to the exhaust wave plate, the wave plate is connected to the bottom mold, the top cover is connected to the top mold, and a wave channel of the wave plate is communicated with the exhaust channel.

In some embodiments of the present disclosure, the exhaust wave plate has a wave-shaped convex portion thereon, and the wave-shaped convex portion has an exhaust hole thereon.

In some embodiments of the present disclosure, the upper mold further has a cooling water pipe thereon, and the cooling water pipe is not in contact with the concave groove and is used for cooling the mold.

The beneficial effect of this disclosure does: this is disclosed through the setting of two first branch passageways on the casting passageway for the runner that aluminium liquid was filled increases, and then has reduced the rolling of aluminium liquid when getting into the die cavity, and through dividing two at least second branch passageways parallel arrangement, make the uniformity of the direction of filling of aluminium liquid better, reduce the convection current of aluminium liquid, and then reduced the formation at aluminium liquid filling in-process bubble, cooperate the setting of exhaust passage and exhaust subassembly again, compare with the correlation technique, the bubble volume of shaping product still less, the quality of product is better.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a front end cover casting mold of a compressor according to an embodiment of the disclosure;

FIG. 2 is an exploded view of a compressor front end cover casting mold according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of another perspective of a compressor front end cover casting mold according to an embodiment of the present disclosure;

FIG. 4 is a top view of a lower mold in an embodiment of the present disclosure;

FIG. 5 is a bottom view of an upper mold in an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of the upper and lower molds filled with aluminum liquid in the embodiment of the present disclosure;

FIG. 7 is a top view of a compressor front end cover casting mold in an embodiment of the present disclosure;

FIG. 8 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7 in an embodiment of the present disclosure;

FIG. 9 is a front view of a compressor front end cover casting mold in an embodiment of the present disclosure;

FIG. 10 is a cross-sectional view taken along line B-B of FIG. 9 in an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the embodiments described are only some embodiments of the present disclosure, rather than all embodiments.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The casting mold for the front end cover of the compressor as shown in fig. 1 to 10, a lower mold 10, an upper mold 20, a casting assembly 30 and a gas exhaust assembly 40;

as shown in fig. 2 to 5 in particular, the lower mold 10 is disposed opposite to the upper mold 20, a boss 11 is disposed on a surface of the lower mold 10 opposite to the upper mold 20 and protrudes toward the upper mold 20, and the boss 11 has a lower molding cavity 12; the upper die 20 is provided with a concave groove 21 corresponding to the boss 11, and the concave groove 21 is internally provided with an upper molding cavity 22 corresponding to the lower molding cavity 12; the side wall of the concave groove 21 is attached to the side wall of the boss 11 through the arrangement of the boss 11 and the concave groove 21, when the upper die 20 is attached to the lower die 10, the upper surface of the boss 11 is attached to the bottom surface of the concave groove 21, and then the upper forming cavity 22 and the lower forming cavity 12 are combined to form a forming cavity of the front end cover; in the embodiment of the present disclosure, by arranging the boss 11 and the concave groove 21, not only the positioning accuracy is improved, but also the sealing performance is improved; it should be noted that, in other embodiments of the present disclosure, the positions of the upper mold 10 and the lower mold 10 may be interchanged, and the upper mold 20 has the boss 11 and the lower mold 10 has the concave groove 21, which both fall within the protection scope of the present disclosure;

with continued reference to fig. 2, in the embodiment of the present disclosure, the casting assembly 30 is disposed at one end of the lower mold 10, the exhaust assembly 40 is disposed at the other end of the lower mold 10, and the abutting surface of the concave groove 21 and the boss 11 has a casting channel 23 communicating the casting assembly 30 and the lower molding cavity 12, and an exhaust channel 13 communicating the exhaust assembly 40 and the lower molding cavity 12; therefore, when the front end cover is cast and molded, aluminum liquid is poured through the position of the casting assembly 30, enters the molding cavity through the casting channel 23, and then redundant gas in the molding cavity flows into the exhaust assembly 40 through the exhaust channel 13 under the action of pressure and is exhausted;

with reference to fig. 5, in the embodiment of the present disclosure, the casting channel 23 includes two symmetrically disposed first branch channels 23a, each of the first branch channels 23a has at least two second branch channels 23b connected to the lower forming cavity 12, and the at least two second branch channels 23b are disposed in parallel. In the related art, when filling aluminum liquid, a plurality of feeding holes are additionally arranged for improving the efficiency of filling the aluminum liquid, however, the inventor finds that the plurality of feeding holes are often subjected to convection when filling the aluminum liquid, and when a plurality of strands of aluminum liquid are subjected to convection, more bubbles are doped between the butt-joint surfaces of the aluminum liquid, so that bubbles which are difficult to discharge are formed, and further the internal defects of products are caused; in addition, when the flowing speed of the aluminum liquid is high, the aluminum liquid can actively roll, and bubbles can also appear in the aluminum liquid due to the rolling; in order to overcome the problems, in the embodiment of the disclosure, the casting channel 23 is improved, firstly, the improvement is that the flow path of the aluminum liquid is increased through the arrangement of the second branch channel 23b, so that the flow path of the aluminum liquid before entering the molding cavity is lengthened, and the rolling of the aluminum liquid in the advancing process can be reduced to a certain extent through the lengthening of the flow path; secondly, as shown in fig. 5, in the embodiment of the present disclosure, a plurality of second branch channels 23b are also provided to communicate with the molding cavity in an approximately parallel manner; through the arrangement in the mode, convection among a plurality of strands of molten aluminum can be reduced to the greatest extent, and bubbles are prevented from being formed among the butt joint surfaces;

in the above embodiment, through the setting of two first branch passageways 23a on casting passageway 23, make the runner that aluminium liquid was filled increase, and then reduced the rolling of aluminium liquid when getting into the shaping chamber, and through with at least two second branch passageways 23b parallel arrangement, make the uniformity of the filling direction of aluminium liquid better, reduce the convection current of aluminium liquid, and then reduced the formation at aluminium liquid filling in-process bubble, cooperate exhaust passage 13 and exhaust assembly 40's setting again, compare with the correlation technique, the bubble volume of shaping product is still less, the quality of product is better.

On the basis of the above embodiment, in order to further improve the flexibility of the flowing of the aluminum liquid, in the embodiment of the disclosure, as shown in fig. 5, the first branch channel 23a is disposed on the concave groove 21, the upper molding cavity 22 and the lower molding cavity 12 are both circular structures, and the extending direction of the first branch channel 23a is disposed in parallel with the tangent of the upper molding cavity 22. As shown in fig. 5, the first branch channel 23a extends in a direction parallel to the tangential direction of the concave groove 21, and the two second branch channels 23b are arranged in a direction approximately perpendicular to the first branch channel 23a, so that the aluminum liquid can synchronously flow out from the two second branch channels 23b after entering the first branch channel 23a, and then as shown in fig. 5, the aluminum liquid is pushed in the molding cavity from left to right, which is favorable for filling the whole cavity with the aluminum liquid.

Referring to fig. 4, in the embodiment of the present disclosure, in order to further lengthen the flow path of the aluminum liquid and reduce the aluminum liquid from rolling over, as shown in fig. 4, the casting channel 23 further includes a casting groove 23c disposed on the lower mold 10, and one end of the casting groove 23c is connected to the casting assembly 30, and the other end is communicated with the first branch channel 23 a. Specifically, referring to fig. 6, when the aluminum liquid is cast, the aluminum liquid is poured into the casting groove 23c on the lower mold 10 through the casting assembly 30, and then the aluminum liquid enters the first branch channel 23a in the upper mold 20 along the casting groove 23c, and then flows into the forming cavity through the second branch channels 23 b; therefore, the aluminum liquid firstly descends and ascends, on one hand, the circulation length of the aluminum liquid is increased, on the other hand, the generation of bubbles can be reduced in the ascending process of the aluminum liquid, so that the whole pouring channel is filled with the aluminum liquid, and further, the gas in the aluminum liquid is reduced; of course, it should be noted that in the embodiments of the present disclosure, the aluminum liquid is merely used as an example for description, and those skilled in the art may also use other casting liquids to form the workpiece;

with continued reference to fig. 5 and 6, in the embodiment of the present disclosure, to facilitate die cutting after forming the front end cap, the second branch channel 23b extends to the edge of the lower forming cavity 12 and is communicated with the lower forming cavity 12. At a specific communication position, please refer to fig. 3, the second branch channel 23b is arranged in a wedge shape, and by the structure, the thickness of the solidified connection point of the molded front end cover and the aluminum liquid in the casting channel 23 is thinner, so that the die cutting of the molded product can be facilitated;

regarding the specific structure of the exhaust passage 13, as shown in fig. 4, in the present embodiment, the exhaust passage 13 includes an exhaust groove 13a provided on the boss 11 and an exhaust passage 13b communicating with the exhaust groove 13a at one end, and the other end of the exhaust passage 13b communicates with the exhaust assembly 40. Through the arrangement of the exhaust groove 13a, a certain margin can be discharged for the discharge of gas, namely, a certain space for containing aluminum liquid can be provided in the exhaust groove 13a, and further, the gas in the aluminum liquid in the molding cavity is discharged as much as possible;

with continued reference to fig. 4 and 5, in order to improve the evacuation of the gas from the molding cavity, a plurality of evacuation grooves 13a and evacuation ducts 13b are provided around the lower molding cavity 12 at a position on the opposite side of the casting passage 23. Through the relative arrangement, after the aluminum liquid enters the cavity, the gas is discharged more smoothly;

with continued reference to fig. 5 and 6, in the embodiment of the present disclosure, in order to further achieve the exhaust of the gas in the molding cavity, the exhaust channel 13 further includes an exhaust bag 13c disposed on the concave groove 21, and one end of the exhaust bag 13c is communicated with the lower molding cavity 12, and the other end is communicated with the exhaust groove 13 a. As shown in fig. 5, the dotted line indicates the boundary of the lower molding cavity 12, and the edge of the exhaust pocket 13c extends into the lower molding cavity 12 and then corresponds to the exhaust groove 13a, while the exhaust groove 13a does not directly communicate with the lower molding cavity 12, so that the air on the aluminum liquid flows out from the upper surface of the lower molding cavity 12, and the air exhaust is facilitated.

In the embodiment of the present disclosure, as shown in fig. 2, 3 and 8, the air discharging assembly 40 includes an air discharging wave plate 41 and an upper cover 42, the upper cover 42 has a wave groove 42a corresponding to the air discharging wave plate 41, the wave plate is connected to the lower mold 10, the upper cover 42 is connected to the upper mold 20, and the wave channel of the wave plate is communicated with the air discharging channel 13. As shown in fig. 2 and 8, through the arrangement of the wave plates, the overflowed aluminum liquid can be rolled to a certain degree, and further air is exhausted;

with continued reference to fig. 2 and fig. 3, in the embodiment of the present disclosure, the exhaust waved plate 41 has a waved convex portion, and the waved convex portion has an exhaust hole. Through the arrangement of the convex part, the gas brought out along with the aluminum liquid realizes climbing at a certain height, so that the rolling effect of the aluminum liquid is further improved, and as shown in figure 2, the discharge of the redundant gas is realized through the exhaust holes arranged on the wavy convex part;

in addition, in the embodiment of the present disclosure, in order to improve the cooling effect after molding, as shown in fig. 9 and 10, the upper mold 20 further has a cooling water pipe 24 thereon, and the cooling water pipe 24 is not in contact with the concave groove 21 for cooling the mold. Referring to fig. 10, after the casting is completed, the cooling water pipe 24 and the channel formed in the upper mold 20 cool the entire mold by introducing cold water into the cooling water pipe 24, thereby improving the production efficiency of the product.

It will be understood by those skilled in the art that the present disclosure is not limited to the embodiments described above, which are presented solely for illustrating the principles of the disclosure, and that various changes and modifications may be made within the scope of the disclosure as claimed without departing from the spirit and scope of the disclosure. The scope of the disclosure is defined by the appended claims and equivalents thereof.

Claims

1. A front end cover casting mold of a compressor is characterized by comprising a lower mold, an upper mold, a casting assembly and an exhaust assembly;

2. The compressor front end cover casting mold according to claim 1, wherein the first branch channel is arranged on the concave groove, the upper forming cavity and the lower forming cavity are both of a circular structure, and the extending direction of the first branch channel is arranged in parallel with a tangent of the upper forming cavity.

3. The compressor front end cover casting mold according to claim 2, wherein the casting channel further comprises a casting groove disposed on the lower mold, one end of the casting groove is connected with the casting component, and the other end of the casting groove is communicated with the first branch channel.

4. The compressor front end cover casting mold of claim 2, wherein the second branch channel extends to an edge of the lower molding cavity and communicates with the lower molding cavity.

5. The compressor front end cover casting mold according to claim 1, wherein the exhaust passage comprises an exhaust groove provided on the boss and an exhaust passage communicated with the exhaust groove at one end, and the other end of the exhaust passage is communicated with an exhaust component.

6. The compressor front cover casting mold according to claim 5, wherein the exhaust groove and the exhaust passage are provided in plurality around the lower molding cavity at a position on a side opposite to the casting passage.

7. The compressor front end cover casting mold according to claim 6, wherein the exhaust passage further comprises an exhaust pocket disposed on the concave groove, one end of the exhaust pocket being in communication with the lower molding cavity and the other end being in communication with the exhaust groove.

8. The compressor front end cover casting mold according to claim 1, wherein the exhaust assembly comprises an exhaust wave plate and an upper cover, the upper cover is provided with wave grooves corresponding to the exhaust wave plate, the wave plate is connected with the lower mold, the upper cover is connected with the upper mold, and wave channels on the wave plate are communicated with the exhaust channel.

9. The compressor front end cover casting mold according to claim 8, wherein the exhaust wave plate has a wave-shaped convex portion thereon, and the wave-shaped convex portion has an exhaust hole thereon.

10. The compressor front end cover casting mold according to claim 1, wherein a cooling water pipe is further arranged on the upper mold, and the cooling water pipe is not in contact with the concave groove and is used for cooling the mold.