Side core-pulling oil cylinder assembly of battery tray mold

Abstract

The utility model discloses a battery tray mould side core-pulling oil cylinder assembly which comprises a base and a split type lower mould structure, a first guide rail is arranged on one group of opposite sides of the top of the base, a second guide rail is arranged on the other group of opposite sides of the top of the base, and lower mould side core-pulling assemblies which are symmetrically installed relative to the central axis of the base are arranged on the first guide rail in a sliding mode. The lower die side core-pulling assembly comprises three groups of core-pulling oil cylinders which are sequentially arranged on the first guide rail, the second guide rail is provided with fixing piece core-pulling assemblies which are symmetrically mounted, the lower die side core-pulling assembly and the fixing piece core-pulling assemblies are connected with the control module, and a lower die positioning groove is formed in the center of the base. Aiming at casting production of a large battery tray, the split type lower die structure is adopted, the three sets of oil cylinders which are correspondingly arranged are adopted to complete side core pulling, the overall size of a single set of die is reduced, and therefore deformation is reduced, and stable core pulling is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a side core-pulling oil cylinder assembly for a battery tray mold. Background Art

[0002] The low-pressure casting machine is a general equipment for low-pressure casting of aluminum alloys and can be widely used in the production of aluminum alloy castings in the automotive, motorcycle, instrument, textile machinery, and aerospace industries. In the current automotive market, due to problems such as the energy crisis, greenhouse gas emissions, and environmental pollution of traditional fuel vehicles, the development of new energy vehicles has become an important direction for automotive workstation innovation. The demand and development of new energy vehicles will drive the development of various industries such as automotive batteries and vehicle body lightweighting in the new energy era. Due to problems such as the large aperture, thin wall, and large external dimensions of new energy battery cases, traditional low-pressure casting uses an integral mold structure, but there will be problems such as large deformation and unstable core-pulling during the core-pulling process. Summary of the Utility Model

[0003] According to the above technical problems to be solved, a side core-pulling oil cylinder assembly for a battery tray mold is provided.

[0004] To achieve the above object, the utility model discloses a side core-pulling oil cylinder assembly for a battery tray mold, which includes a base and a split lower mold structure. On a set of opposite sides at the top of the base, first guide rails are provided, and on the other set of opposite sides, second guide rails are provided. A lower mold side core-pulling assembly symmetrically installed about the central axis of the base is slidably arranged on the first guide rails. The lower mold side core-pulling assembly includes three core-pulling oil cylinders sequentially arranged on the first guide rails. A fixed part core-pulling assembly symmetrically installed is arranged on the second guide rails. The lower mold side core-pulling assembly and the fixed part core-pulling assembly are connected to a control module. A lower mold positioning groove is arranged at the center of the base.

[0005] Further, the lower mold side core-pulling assembly includes a central core-pulling oil cylinder at the center and side core-pulling oil cylinders symmetrically arranged on both sides of the central core-pulling oil cylinder.

[0006] Furthermore, a piston rod is arranged on the side of the central core-pulling oil cylinder away from the lower mold positioning groove. The piston rod is located at the center of the central core-pulling oil cylinder, and two guide rods are arranged below the piston rod.

[0007] Furthermore, a piston rod is arranged on the side of the side core-pulling oil cylinder away from the lower mold positioning groove. The piston rod is located at the center of the central core-pulling oil cylinder, and symmetric guide rods are respectively arranged on both sides of the piston rod.

[0008] Furthermore, connecting plates with card slots are arranged on the sides of the lower mold side core-pulling assembly and the fixed part core-pulling assembly close to the lower mold positioning groove.

[0009] Further, the first guide rail is composed of at least six groups of guide rails arranged in parallel at equal intervals.

[0010] Further, the length of the first guide rail is greater than that of the second guide rail.

[0011] Beneficial effects produced by the present utility model compared with the prior art: The present utility model discloses a side core-pulling oil cylinder assembly for a battery tray mold. For the casting production of large battery trays, a split lower mold structure is adopted, and three groups of oil cylinders arranged correspondingly are used to complete side core-pulling, reducing the overall size of a single set of molds, thereby reducing the deformation amount and facilitating smooth core-pulling. Description of the Drawings

[0012] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0013] Figure 1 is a top view of the present utility model.

[0014] Figure 2 is a front view of the present utility model.

[0015] In the figure: 1 is the base; 11 is the lower mold positioning groove; 12 is the first guide rail; 13 is the second guide rail; 2 is the lower mold side core-pulling assembly; 21 is the central core-pulling oil cylinder; 22 is the side core-pulling oil cylinder; 23 is the piston rod; 24 is the guide rod; 3 is the fixed part core-pulling assembly; 4 is the connecting plate. Specific Embodiments

[0016] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] An embodiment of the present utility model is as Figure 1 and Figure 2As shown in the figure, the side core-pulling oil cylinder assembly of the battery tray mold includes a base 1 and a split lower mold structure. By using the split mold structure, the size width of a single mold component is reduced, thereby reducing the deformation amount per unit length. On a set of opposite sides at the top of the base 1, there are first guide rails 12, and on the other set of opposite sides, there are second guide rails 13. A lower mold side core-pulling component 2 symmetrically installed about the central axis of the base 1 is slidably arranged on the first guide rails 12. The lower mold side core-pulling component 2 includes three core-pulling oil cylinders sequentially arranged on the first guide rails 12, and each core-pulling oil cylinder is connected to the mold component at the corresponding position. On the second guide rails 13, there are symmetrically installed fixed part core-pulling components 3. The lower mold side core-pulling component 2 and the fixed part core-pulling components 3 are connected to a control module. By sequentially controlling the actions of each core-pulling oil cylinder through the control module, sequential core-pulling of the lower mold is achieved. A lower mold positioning groove 11 is provided at the center of the base 1 for positioning and installing the lower mold. For the casting production of large battery trays, a split lower mold structure is adopted and three sets of corresponding oil cylinders are used to complete side core-pulling, reducing the overall size of a single set of molds and thus reducing the deformation amount, which is convenient for stable core-pulling.

[0018] The lower mold side core-pulling component 2 includes a central core-pulling oil cylinder 21 at the center and side core-pulling oil cylinders 22 symmetrically arranged on both sides of the central core-pulling oil cylinder 21. The size of the central core-pulling oil cylinder 21 is smaller than that of the side core-pulling oil cylinders 22, corresponding to the width of the lower mold connected to each, ensuring the stability of the core-pulling process.

[0019] On the side of the central core-pulling oil cylinder 21 away from the lower mold positioning groove 11, there is a piston rod 23. The piston rod 23 is located at the central position of the central core-pulling oil cylinder 21. Below the piston rod 23, there are two guide rods 24. The central core-pulling oil cylinder 21 reciprocally slides along the first guide rails 12, ensuring the stability of the lower mold core-pulling process.

[0020] On the side of the side core-pulling oil cylinder 22 away from the lower mold positioning groove 11, there is a piston rod 23. The piston rod 23 is located at the central position of the central core-pulling oil cylinder 21. On both sides of the piston rod 23, there are symmetric guide rods 24 respectively. The side core-pulling oil cylinder 22 reciprocally slides along the second guide rails 13, ensuring the stability of the fixed part installation process.

[0021] On the side close to the lower mold positioning groove 11 of the lower mold side core-pulling component 2 and the fixed part core-pulling components 3, there are connecting plates 4 with card slots. The card slots on the connecting plates 4 facilitate the connection of the lower mold and the fixed part, are not easy to fall off, and ensure the connection stability.

[0022] The first guide rails 12 are at least composed of six groups of parallel and equally spaced guide rails. At the bottoms of the central core-pulling oil cylinder 21 and the side core-pulling oil cylinders 22, there are two groups of parallel guide rails respectively.

[0023] The length of the first guide rails 12 is greater than the length of the second guide rails 13.

[0024] Working principle: Connect each die component of the lower die to the connecting plate of the core-pulling oil cylinder at the corresponding position respectively. The control module drives the oil cylinder to move the lower die components along the first guide rail towards the lower die positioning groove in sequence. After the installation of the lower die is completed, the upper die descends to complete the die closing action with the lower die. The control module drives the fixing part core-pulling component to move towards the die, and installs the fixing part on the sides of the upper die and the lower die to complete the installation.

[0025] The following points need to be explained: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change. Second, in this article, relational terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0026] The above examples are only illustrative examples of the present utility model and do not constitute a limitation on the protection scope of the present utility model. Any design identical or similar to the present utility model belongs to the protection scope of the present utility model.

Claims

1. A battery tray mold side core-pulling cylinder assembly, comprising a base (1) and a split lower mold structure, characterized in that: A first guide rail (12) is arranged on one set of opposite sides of the top of the base (1), and a second guide rail (13) is arranged on the other set of opposite sides. A lower die side core pulling assembly (2) symmetrically installed about the central axis of the base (1) is slidably arranged on the first guide rail (12). The lower die side core pulling assembly (2) includes three groups of core pulling cylinders arranged in sequence on the first guide rail (12). A symmetrically installed fixing part core pulling assembly (3) is arranged on the second guide rail (13). The lower die side core pulling assembly (2) and the fixing part core pulling assembly (3) are connected to a control module. A lower die positioning groove (11) is arranged at the center of the base (1).

2. The battery tray mold side core-pulling cylinder assembly according to claim 1, characterized in that: The lower die side core pulling assembly (2) comprises a central core pulling cylinder (21) located in the center and side core pulling cylinders (22) symmetrically arranged on both sides of the central core pulling cylinder (21).

3. The battery tray mold side core-pulling cylinder assembly according to claim 2, characterized in that: A piston rod (23) is provided on the side of the central core-pulling cylinder (21) away from the lower die positioning groove (11), the piston rod (23) is located at the center of the central core-pulling cylinder (21), and two guide rods (24) are provided below the piston rod (23).

4. The battery tray mold side core-pulling cylinder assembly according to claim 2, characterized in that: A piston rod (23) is provided on the side of the side core-pulling cylinder (22) away from the lower die positioning groove (11), the piston rod (23) is located at the center of the center core-pulling cylinder (21), and symmetrical guide rods (24) are respectively provided on both sides of the piston rod (23).

5. The battery tray mold side core-pulling cylinder assembly according to claim 2, characterized in that: A connecting plate (4) with a slot is provided on one side of the lower die side core pulling assembly (2) and the fixing part core pulling assembly (3) close to the lower die positioning groove (11).

6. The battery tray mold side core-pulling cylinder assembly according to claim 1, characterized in that: The first guide rail (12) is composed of at least six groups of guide rails arranged in parallel and equidistantly.

7. The battery tray mold side core-pulling cylinder assembly according to claim 1, characterized in that: The length of the first guide rail (12) is greater than the length of the second guide rail (13).

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