CN215237641U

CN215237641U - Cast aluminum upright post casting forming die

Info

Publication number: CN215237641U
Application number: CN202120652546.0U
Authority: CN
Inventors: 周玉
Original assignee: Nantong Chengan Metal Material Co ltd
Current assignee: Nantong Chengan Metal Material Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-12-21
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to a cast aluminium stand casting mold, cast aluminium stand includes L type wall section and L type side joint section, its characterized in that: the sand core structure comprises an outer shell, a main body sand core, a bolt slot sand core and a square column sand core; the vertical casting mould is adopted, the alloy liquid is directly injected from the casting opening, and the stress of the sand core can be reduced by uniformly and vertically placing the sand core, so that the core is not easy to break; the casting cavity formed by the reserved gaps among the sand core structures is uniform in thickness, stable flowing of aluminum alloy liquid and gradual rising of the liquid level are guaranteed during casting, and the casting defects of shrinkage cavities and looseness are avoided; the square column sand core is arranged at the included angle of the bolt sand groove sand core, so that the use of materials is reduced and raw materials are saved on the basis of ensuring the strength of the cast aluminum stand column.

Description

Cast aluminum upright post casting forming die

Technical Field

The utility model relates to an aluminium casting shaping field especially relates to a cast aluminium stand casting forming die.

Background

The aluminum alloy has many excellent characteristics, such as light weight, small density, good elastic plasticity, high specific strength, resistance to mold damage, corrosion resistance, good electrical and thermal conductivity, excellent processability and the like, and is widely applied to the manufacturing industries of aerospace, transportation, national defense construction and the like.

In the application of the common cast aluminum upright post in a wall template, integral casting molding is adopted; the cast aluminum upright post adopts a hollow structure, thereby realizing light weight and saving raw materials on the basis of ensuring the strength; however, the hollow cast aluminum column produced by the general cast aluminum column casting mold has uneven wall thickness, and the wall thickness of some positions is thin, so that the connection requirement cannot be met in strength.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a cast aluminium stand casting forming die, the product wall thickness that can solve general cast aluminium stand forming die and produce is inhomogeneous, appears the gas pocket easily and the problem of disconnected core.

In order to solve the technical problem, the utility model adopts the technical scheme that: a cast aluminum stand column casting forming die comprises an L-shaped wall attaching section and an L-shaped side connecting section, wherein the L-shaped wall attaching section and the L-shaped side connecting section are integrally formed into a cylinder structure with a square cross section; a lightweight cavity is formed between the L-shaped wall pasting section and the L-shaped side connecting section; bolt clamping grooves are formed in the side edges of the L-shaped side connecting sections; the innovation points are as follows: the sand core structure comprises an outer shell, a main body sand core, a bolt slot sand core and a square column sand core;

the outer shell comprises an upper die outer shell and a lower die outer shell; the upper die outer shell and the lower die outer shell are both in a square columnar structure, and are buckled in the vertical direction and connected through bolts to form an outer die of the cast aluminum upright post; a cavity for accommodating the sand core is formed in the outer shell; a casting opening is formed in the upper die outer shell, and a plurality of air holes are formed in the upper die outer shell and located beside the casting opening;

the profile of an internal cavity of the upper die outer shell is the same as the profile of the side edge of the internal cavity of the lower die outer shell; the inner wall of the bottom end of the lower die outer shell and the inner wall of the top end of the upper die outer shell are provided with positioning grooves for placing the main body sand core, the bolt groove sand core and the square column sand core; the main body sand core, the bolt slot sand core and the square column sand core are all placed in an internal cavity of the outer shell along the vertical direction;

the main body sand core comprises a right-angle side face and a step side face; a gap is reserved between the right-angle side surface of the main sand core and the outer shell to form a cavity for casting an L-shaped wall section; the bolt slot sand core is provided with a pair of cavities which are matched with the stepped side surfaces of the main body sand core and are provided with gaps, a casting cavity in an L-shaped side connecting section is formed between the bolt slot sand core and the main body sand core, and the pair of bolt slot sand cores are arranged at an included angle of 90 degrees; the square column sand core is arranged on the outer side of an included angle between the end parts of the two bolt groove sand cores, and a casting gap is formed between the square column sand core and the bolt groove sand core.

Furthermore, a positioning notch is formed in the right-angle side face of the main body sand core.

Furthermore, a step surface is arranged at the connecting position of the bolt slot sand core and the shell, and a clamping edge of a bolt clamping slot of the cast aluminum upright column is formed through casting.

The utility model has the advantages that:

1) the utility model adopts a vertical casting mould, and alloy liquid is directly injected from a casting gate, so that the stress of the sand core can be reduced by uniformly and vertically placing the sand core, and the core is not easy to break; the casting cavity formed by the reserved gaps among the sand core structures is uniform in thickness, stable flowing of aluminum alloy liquid and gradual rising of the liquid level are guaranteed during casting, and the casting defects of shrinkage cavities and looseness are avoided; the square column sand core is arranged at the included angle of the bolt sand groove sand core, so that the use of materials is reduced and raw materials are saved on the basis of ensuring the strength of the cast aluminum stand column.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic perspective view of a cast aluminum column according to the present invention.

Fig. 2 is the cross-sectional schematic view of the cast aluminum column casting mold of the present invention.

Fig. 3 is the utility model discloses a cast aluminium stand casting forming die's main part psammitolite structure cross-section sketch map.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, a cast aluminum column casting mold, a cast aluminum column 1 includes an L-shaped wall attaching section 11 and an L-shaped side connecting section 12, and the L-shaped wall attaching section 11 and the L-shaped side connecting section 12 are integrally formed into a cylinder structure with a square cross section; a lightweight cavity is formed between the L-shaped wall attaching section 11 and the L-shaped side connecting section 12; a bolt clamping groove is formed in the side edge of the L-shaped side connecting section 12; the sand core structure comprises an outer shell 2, a main body sand core 3, a bolt slot sand core 4 and a square column sand core 5.

The outer shell 2 comprises an upper die outer shell 21 and a lower die outer shell 22; the upper die outer shell 21 and the lower die outer shell 22 are both in a square columnar structure, and the upper die outer shell 21 and the lower die outer shell 22 are buckled in the vertical direction and are connected through bolts to form an outer die of the cast aluminum upright; a cavity for accommodating the sand core is formed in the outer shell 2; the upper die shell body 21 is provided with a casting opening, and the side of the upper die shell body 21, which is positioned at the casting opening, is provided with a plurality of air holes.

The profile of the internal cavity of the upper die outer shell 21 is the same as the profile of the side edge of the internal cavity of the lower die outer shell 22; the inner wall of the bottom end of the lower die outer shell 22 and the inner wall of the top end of the upper die outer shell 21 are provided with positioning grooves for placing the main body sand core 3, the bolt groove sand core 4 and the square column sand core 5; the main body sand core 3, the bolt slot sand core 4 and the square column sand core 5 are all placed in an inner cavity of the outer shell along the vertical direction.

The body core 3 includes a right-angle side 31 and a step side 32; a gap is reserved between the right-angle side surface 31 of the main sand core 3 and the outer shell 2 to form a cavity for casting the L-shaped wall-attached section 11; the bolt slot sand core 4 is provided with a pair of cavities which are matched with the step side surfaces 32 of the main body sand core 3 and are provided with gaps, a cavity for casting the L-shaped side connecting section 12 is formed between the bolt slot sand core 32 and the main body sand core 3, and the pair of bolt slot sand cores 332 are arranged at an included angle of 90 degrees; the square column sand core 5 is arranged on the outer side of an included angle between the end parts of the two bolt slot sand cores 4, and a casting gap is formed between the square column sand core 5 and the bolt slot sand core 32.

And a positioning notch is formed in the right-angle side surface of the main body sand core 3.

The connection position of the bolt slot sand core 4 and the outer shell 2 is provided with a step surface, and a clamping edge of a bolt clamping slot of the cast aluminum upright post is formed through casting.

The utility model discloses a theory of operation is: the vertical casting mould is adopted, the alloy liquid is directly injected from the casting opening, and the stress of the sand core can be reduced by uniformly and vertically placing the sand core, so that the core is not easy to break; the casting cavity formed by the reserved gaps among the sand core structures is uniform in thickness, stable flowing of aluminum alloy liquid and gradual rising of the liquid level are guaranteed during casting, and the casting defects of shrinkage cavities and looseness are avoided; the square column sand core is arranged at the included angle of the bolt sand groove sand core, so that the use of materials is reduced and raw materials are saved on the basis of ensuring the strength of the cast aluminum stand column.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cast aluminum stand column casting forming die comprises an L-shaped wall attaching section and an L-shaped side connecting section, wherein the L-shaped wall attaching section and the L-shaped side connecting section are integrally formed into a cylinder structure with a square cross section; a lightweight cavity is formed between the L-shaped wall pasting section and the L-shaped side connecting section; bolt clamping grooves are formed in the side edges of the L-shaped side connecting sections; the method is characterized in that: the sand core structure comprises an outer shell, a main body sand core, a bolt slot sand core and a square column sand core;

2. The cast aluminum pillar cast molding die of claim 1, wherein: and a positioning notch is formed in the right-angle side surface of the main body sand core.

3. The cast aluminum pillar cast molding die of claim 1, wherein: and a step surface is arranged at the connecting position of the bolt slot sand core and the shell, and a clamping edge of a bolt clamping slot of the cast aluminum upright post is formed by casting.