CN219004538U

CN219004538U - Large-wall-difference aluminum battery pack panel die casting mold

Info

Publication number: CN219004538U
Application number: CN202223434082.XU
Authority: CN
Inventors: 伍定才; 丁林; 沈海龙; 李海东
Original assignee: Koman Vehicle Parts System Suzhou Co ltd
Current assignee: Koman Vehicle Parts System Suzhou Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-05-12
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a large-wall-difference aluminum battery pack panel die-casting mold, which comprises the following components: the runner of setting in the die cavity bottom, the size on the die cavity horizontal direction is the trend of progressively increasing from down to up, still includes: the first pouring gate is arranged between the pouring gate and the cavity, and is unfolded in a straight shape to be completely communicated with the lower end of the pouring gate and the lower end of the cavity; the pressurizing mechanism is arranged at the upper end of the cavity, and compresses the space at the upper end of the cavity in a mechanical extrusion mode to increase the pressure in the cavity at the upper end of the cavity. In the first aspect, the first pouring gate and the second pouring gate are utilized to guide the aluminum liquid to be injected into the lower end of the cavity at a plurality of positions, so that the filling uniformity and consistency of two sides of a product are ensured; in the second aspect, the pressurizing mechanism is arranged at the upper end of the cavity to send the pressure point to the wall thickness point, so that the loss of the aluminum water pressure in the cavity is compensated, and the problem of local casting defects of the product is solved.

Description

Large-wall-difference aluminum battery pack panel die casting mold

Technical Field

The utility model relates to the field of aluminum alloy die casting molds, in particular to a large-wall-difference aluminum battery pack panel die casting mold.

Background

The extrusion casting of the aluminum alloy structural member can lead the vehicle to reduce the weight by 20-30% on the premise of not reducing the use requirements such as strength and the like, and the emission can be reduced by 5-6% when the weight is reduced by 10%. Has obvious advantages in light weight and cost.

Referring to the aluminum battery pack panel blank of fig. 1, the wall thickness dimension of the lower end 12b of the product body 12 is substantially smaller than the wall thickness dimension of the upper end 12 a. In die casting, the molten aluminum gradually spreads from the handle 11 toward the upper end and preferentially fills the region of greater wall thickness. Because the region of greater wall thickness of the product is located above, the region of the upper end 12a is extremely susceptible to localized stress relaxation without the compensating structure.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a large-wall-difference aluminum battery pack panel die-casting die for improving the product forming rate.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a large wall difference aluminum battery pack panel die-casting mold comprising: the runner of setting in the die cavity bottom, the size on the die cavity horizontal direction is the trend of increase gradually from down to up, its characterized in that still includes:

the first pouring gate is arranged between the pouring gate and the cavity, and is unfolded in a straight shape to be completely communicated with the lower end of the pouring gate and the lower end of the cavity;

the pressurizing mechanism is arranged at the upper end of the cavity, and compresses the space at the upper end of the cavity in a mechanical extrusion mode to increase the pressure in the cavity at the upper end of the cavity.

In a preferred embodiment of the present utility model, further comprising:

and the second pouring gate is arranged at the lower end of the cavity and communicated with the first pouring gate, and the second pouring gate is matched with the first pouring gate to fully spread and guide the injection material to the lower end of the cavity.

In a preferred embodiment of the present utility model, the gate is circular in cross-section.

In a preferred embodiment of the present utility model, the pressurizing mechanism includes a pressurizing sleeve fixed at the upper end of the cavity, and an extruding shaft driven by an oil cylinder is inserted into the pressurizing sleeve.

In a preferred embodiment of the present utility model, the side and top of the cavity are provided with a side vent and a top vent, respectively, which are used to control the balance of the pressure in the cavity.

The utility model has the beneficial effects that:

according to the large-wall-difference aluminum battery pack panel die-casting mold provided by the utility model, the first pouring gate and the second pouring gate are utilized to guide the aluminum liquid to be injected into the lower end of the cavity at a plurality of positions, so that the uniformity and consistency of filling at two sides of a product are ensured; in the second aspect, the pressurizing mechanism is arranged at the upper end of the cavity to send the pressure point to the wall thickness point, so that the loss of the aluminum water pressure in the cavity is compensated, and the problem of local casting defects of the product is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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.

FIG. 1 is a schematic representation of the product coarse material of the present utility model.

Fig. 2 is a schematic diagram of the structure of the mold of the present utility model.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and the above description is for convenience of description of the present utility model to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood, however, that this application may be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide yet additional embodiments. Throughout the drawings, like reference numbers indicate identical or functionally identical elements.

Referring to fig. 2, a large wall difference aluminum battery pack panel die-casting mold mainly includes: a gate 21 provided at the bottom of the cavity 22, a first runner 26 and a second runner 27 connected between the gate 21 and the cavity 22, and a pressurizing mechanism 25 provided at the upper portion of the cavity 22. The dimension of the cavity 22 in the horizontal direction (the direction extending toward both sides in the drawing) is gradually increased from bottom to top, and the contour of the product is kept consistent, and the cross section of the gate 21 is circular, so that the pressure distribution of the fluid flowing through the gate is more uniform. The first runner 26 is spread in a straight shape, and a plurality of second runners 27 are further arranged in the passage of the first runner 26. Because the die cavity 22 is of a structure with a thinner bottom and a thicker top, the molten aluminum is evenly poured onto the lower end 22b of the die cavity 22 through the first pouring gate 26 and the second pouring gate 27, and incomplete molding or stacking in the process of spreading the molten aluminum upwards is prevented.

The upper end 22a of the cavity 22 is further provided with a pressurizing mechanism 25, and the pressurizing mechanism 25 comprises a pressurizing sleeve fixed at the upper end 22a, and an extruding shaft (not directly shown in the figure) driven by an oil cylinder is arranged in the pressurizing sleeve in a penetrating manner. The pressurizing mechanism 25 compresses the space of the upper end 22a by mechanical pressing, and increases the intra-cavity pressure of the upper end 22 a. The side part and the top part of the cavity 22 are also provided with a side part exhaust passage 24 and a top part exhaust passage 23, the side part exhaust passage 24 and the top part exhaust passage 23 are not connected with each other, and the pressure balance in the cavity is controlled by leading out the gas in the cavity in the casting process, so that the product molding is ensured.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a first element could be termed a second element without departing from the teachings of the present application.

Claims

1. A large wall difference aluminum battery pack panel die-casting mold comprising: the runner of setting in the die cavity bottom, the size on the die cavity horizontal direction is the trend of increase gradually from down to up, its characterized in that still includes:

2. The large wall differential aluminum battery pack panel die-casting mold as defined in claim 1, further comprising:

3. A large wall differential aluminum battery pack panel die-casting mold as recited in claim 1, wherein said gate is circular in cross-section.

4. A large wall difference aluminum battery pack panel die-casting mold as recited in any one of claims 1 to 3, wherein the pressurizing mechanism comprises a pressurizing sleeve fixed at the upper end of the cavity, and an extruding shaft driven by an oil cylinder is penetrated in the pressurizing sleeve.

5. The die casting mold for large wall difference aluminum battery pack panel according to claim 4, wherein a side vent and a top vent are respectively provided at a side and a top of the cavity, and the side vent and the top vent are used for controlling pressure balance in the cavity.