CN213645834U

CN213645834U - Casting device of battery box

Info

Publication number: CN213645834U
Application number: CN202022482972.2U
Authority: CN
Inventors: 刘伟; 田春秀; 国富忠; 张娜; 张家辉
Original assignee: Ji'nan Pioneer Technology Co ltd; Jinan Foundry Pattern Co ltd
Current assignee: Ji'nan Pioneer Technology Co ltd; Jinan Foundry Pattern Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-09
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a casting device of battery box, its technical scheme is: the core pulling device comprises an upper die and a bottom die, wherein a casting cavity is formed after the upper die and the bottom die are assembled, a plurality of core pulling bodies are arranged in the circumferential direction of the casting cavity, and the core pulling bodies are connected with a driving mechanism; the bottom die is provided with two gates communicated with the casting cavity, and a cooling system is arranged on the outer side of each gate. The utility model discloses can effectively improve foundry goods quality and yield to improve production efficiency.

Description

Casting device of battery box

Technical Field

The utility model relates to a casting equipment field especially relates to a casting device of battery box.

Background

In recent years, electric automobiles are rapidly developed, the demand of battery boxes is increased year by year, the parts are initially produced by adopting a manual gravity pouring casting method, the efficiency and the capacity are low, the quality cannot meet the requirement, the workpieces have serious casting defects, large-area shrinkage cavities, rough surface depressions, unstable sizes, overweight weight and high rejection rate.

In recent years, low-pressure casting of battery boxes is the mainstream, but because a casting device is immature, the size of a cast finished product is unstable, local defects are serious, and the yield is low. In addition, the automobile industry develops rapidly, the product is updated rapidly, the structure of the product is more complicated, and the general casting device cannot meet the requirement of the product.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a casting device of battery box can effectively improve foundry goods quality and yield to improve production efficiency.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

the embodiment of the utility model provides a battery box's casting device, including upper die, die block, form the casting die cavity after upper die and die block compound die, the casting die cavity circumference sets up a plurality of loose cores, loose core connection actuating mechanism; the bottom die is provided with two gates communicated with the casting cavity, and a cooling system is arranged on the outer side of each gate.

As a further implementation mode, the driving mechanism comprises an oil cylinder, and the oil cylinder is detachably connected with the loose core.

As a further implementation mode, the oil cylinder is fixed with the upper die through a support.

As a further implementation manner, the number of the loose cores is four.

As a further implementation manner, a plurality of risers are arranged on the side surface of the casting cavity.

As a further implementation, the riser is a cold riser or an insulated riser.

As a further implementation, the cooling system comprises a cooling pipeline, and compressed air is introduced into the cooling pipeline.

As a further implementation manner, the cooling pipeline is overlapped with the axis of the pouring gate, and the cooling pipeline penetrates out from the side surface of the bottom die.

As a further implementation, the loose core is perpendicular to the axis of the casting cavity.

In a further implementation mode, red copper is embedded in the set position of the bottom die.

Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:

(1) the bottom die of one or more embodiments of the utility model is provided with double gates, so that the molten metal can enter the casting cavity through the gates; the pouring gate can be directly connected with a casting, the molten metal is slowly filled, and after the molten metal is fully filled, the molten metal is subjected to pressure maintaining, cooling, solidification and mold stripping;

(2) the core-pulling connection oil cylinder of one or more embodiments of the utility model drives the core-pulling action to cast the groove structure outside the product;

(3) the utility model discloses a red copper is inlayed at the die block corresponding position to one or more embodiments, and the cooling solidification accelerates, prevents the shrinkage porosity phenomenon, has improved product quality, has improved the qualification rate, the cost is reduced.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic structural diagram of the present invention according to one or more embodiments;

the device comprises a base, a mold, a core, a bottom mold, a pouring gate, a riser, a cooling system, an oil cylinder and a core, wherein the core comprises 1, an upper mold, 2, a loose core, 3, the bottom mold, 4, the pouring gate, 5, the riser, 6, the cooling system and 7.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" when appearing in this application are intended only to designate directions that are consistent with the up, down, left and right directions of the drawings themselves, and not to limit the structure, but merely to facilitate description of the invention and to simplify description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the application.

The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected internally or in an interaction relationship, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

The first embodiment is as follows:

an embodiment of the utility model provides a casting device of battery box, as shown in fig. 1, including last mould 1, die block 3, form the casting die cavity after going up mould 1 and 3 compound dies of die block for the casting of foundry goods. The casting die cavity circumference sets up a plurality of 2 of loosing core, 2 connection actuating mechanism loose cores, actuating mechanism can drive 2 actions of loosing core.

Furthermore, the bottom die 3 is provided with two gates 4 communicated with the casting cavity, the gates 4 are positioned below the casting cavity, and molten aluminum can enter the casting cavity through the gates 4. 4 outside installations cooling system 6 in runner, cooling system 6 includes cooling duct, and cooling duct distributes along 4 circumference in runner, and cooling duct coincides with the axis of runner 4, and cooling duct wears out from die block 3 sides, realizes the cooling through letting in compressed air in to cooling duct.

In order to prevent the device from shrinkage porosity, red copper is inlaid in the corresponding position of the bottom die 3 to accelerate cooling solidification; the specific arrangement position of the red copper can be set according to actual needs.

The driving mechanism comprises an oil cylinder 7, and the oil cylinder 7 is detachably connected with the core pulling 2; the oil cylinder 7 is fixed with the side surface of the upper die 1 through a bracket. The core pulling 2 is vertical to the axis of the casting cavity, and in the embodiment, the number of the core pulling 2 is four, and the core pulling is circumferentially and uniformly distributed along the middle position of the casting cavity. It is understood that in other embodiments, the number of the loose cores 2 may be other, and is specifically selected according to the actual casting requirement.

A plurality of risers 5 are arranged on the side surface of the casting cavity, and the risers 5 are cold risers or heat-insulating risers; the design of a cold riser or a heat-insulating riser of the ear on the side surface is added, the feeding effect is enhanced, and the defect of shrinkage porosity of the ear and the side wall is overcome.

When the casting mold is used in the embodiment, molten aluminum enters the casting cavity through the pouring gate 4 of the bottom mold 3, the mold filling stage is adopted, and the casting is formed in the casting cavity through the pressure boosting, pressure maintaining and solidifying stages. The upper die 1 and the casting are driven by the upper die plate of the equipment to move upwards, the core pulling 3 is pulled out under the driving of the oil cylinder 7, the reverse ejector rod of the equipment moves downwards, and the casting is ejected, so that the production cycle is one-step casting.

In the casting cycle process, the riser 5 feeds the thick part of the upper end of the battery box under the action of pressure; the cooling system 6 carries out condensation treatment on the pouring gate 4; the quality and the yield of the castings can be effectively improved, meanwhile, the cooling system 6 effectively improves the production efficiency, and the yield per hour can reach 10 pieces.

The casting device of the embodiment adopts a low-pressure casting process technology for mold filling casting, the pouring gate 4 is directly connected with a casting, molten metal is slowly filled, and after the mold is fully filled, pressure maintaining, cooling, solidifying and mold stripping are carried out.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The casting device of the battery box is characterized by comprising an upper die and a bottom die, wherein a casting cavity is formed after the upper die and the bottom die are assembled, a plurality of loose cores are arranged in the circumferential direction of the casting cavity, and the loose cores are connected with a driving mechanism; the bottom die is provided with two gates communicated with the casting cavity, and a cooling system is arranged on the outer side of each gate.

2. The battery box casting device according to claim 1, wherein the driving mechanism comprises an oil cylinder, and the oil cylinder is detachably connected with the core pulling mechanism.

3. The casting device for the battery box according to claim 2, wherein the oil cylinder is fixed with the upper die through a bracket.

4. The battery box casting device according to claim 1 or 2, wherein the number of the loose cores is four.

5. The battery box casting apparatus according to claim 1, wherein a plurality of risers are provided on a side surface of the casting cavity.

6. The casting apparatus for battery box according to claim 5, wherein the feeder is a cold feeder or an insulated feeder.

7. The battery box casting device according to claim 1, wherein the cooling system comprises a cooling duct for introducing compressed air.

8. The casting device for battery boxes according to claim 7, wherein the cooling duct is coincident with the axis of the pouring gate, and the cooling duct penetrates out of the side surface of the bottom mold.

9. The battery box casting device according to claim 1, wherein the core back is perpendicular to an axis of the casting cavity.

10. The casting apparatus for battery box according to claim 1, wherein red copper is inserted into the set position of the bottom mold.