CN204209093U - Multiple-grooved aluminium alloy disk die-casting forming die - Google Patents

Abstract

The utility model discloses a multi-groove aluminum alloy disc die-casting forming mold, which comprises a fixed mold and a movable mold. The fixed mold includes a fixed mold bottom plate and a fixed mold cover plate. The movable mold includes a movable mold bottom plate and a movable mold cover plate. When the fixed mold and the movable mold are closed, a product cavity and a pouring runner are formed between the movable mold cover plate and the fixed mold cover plate. The pouring runner respectively communicate with the pouring port and the product cavity, the product cavity is a disc cavity, the movable mold set plate is respectively provided with a punch I and a core, and the fixed mold set plate is respectively A punch II which is mirror-symmetrical to the punch I and a core hole matched with the core are provided. The utility model adopts the form of multiple pieces in one mold during die-casting, which improves the production efficiency and yield, and can make the multi-slot aluminum alloy disc formed by die-casting compact in structure, high in dimensional accuracy, less in machining allowance and high in finish, and the material Less waste and better mechanical properties.

Description

Multi-slot aluminum alloy disc die-casting mold

technical field

The utility model relates to a die-casting die, in particular to a multi-groove aluminum alloy disc die-casting forming die.

Background technique

Aluminum alloy has the characteristics of low density, high strength, good plasticity, easy processing, good dimensional stability and good welding performance. Many parts are mostly made of aluminum alloy. At the same time, aluminum alloy has good casting performance to ensure good melt performance. Excellent fluidity and high and low temperature strength, no or less cold and hot cracks; heat treatment or other methods can be used to improve strength and other properties, dimensional stability, and good machinability. The multi-groove aluminum alloy disk made of aluminum alloy was manufactured by mechanical processing method in the test stage, which has defects such as low dimensional accuracy, material waste, low production efficiency, and high cost, and cannot meet the needs of mass production.

Utility model content

Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is: how to provide a multi-slot aluminum alloy disc die-casting mold with high dimensional accuracy, material saving, low cost, high production efficiency and high yield.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A multi-slot aluminum alloy disc die-casting mold, comprising a fixed mold and a movable mold, the fixed mold includes a fixed mold bottom plate and a fixed mold cover plate, a sprue is arranged on the fixed mold cover plate, and the movable mold includes a movable mold Bottom plate and movable mold cover plate, when the fixed mold and the movable mold are closed, a product cavity and a pouring runner are formed between the movable mold cover plate and the fixed mold cover plate, and the pouring runner is connected to the pouring runner respectively. The mouth is connected with the product cavity, and the product cavity is a disc cavity, and the surface of the movable mold cover plate located in the disc cavity is respectively provided with a punch I and a core. The surface of the mold cover plate located in the disc cavity is respectively provided with a punch II mirror-symmetrical to the punch I and a core hole matched with the core, and the punch I includes a A cylindrical punch in the center of the disc cavity. The cylindrical punch is centered on the cylindrical punch and has a plurality of strip-shaped punches extending outward in a straight line at uniform intervals. The end of the strip-shaped punch is centered on the cylindrical punch along the There is an arc-shaped punch extending counterclockwise, and the core includes a round-hole core I respectively arranged at the end of the arc-shaped punch and a round-hole core II between the cylindrical punch and the arc punch , the core holes respectively include the round hole core hole I and the round hole core hole II matched with the round hole core I and the round hole core II. When the fixed mold and the movable mold are closed, the round hole type The core I and the round hole core II can be inserted into the round hole core hole I and the round hole core hole II respectively.

In the utility model, pressure casting is adopted, and punches and cores corresponding to the grooves and through holes on the disk are respectively arranged at both ends of the fixed mold and the movable mold. Or semi-liquid aluminum alloy is pressed into the disc cavity at a high speed, and solidified under high pressure to form a multi-slot aluminum alloy disc with clear outline and accurate size. The multi-slot aluminum alloy disc formed by die-casting of the utility model The aluminum alloy disc has compact structure, high dimensional accuracy, less machining allowance, high finish, less material waste, improved production efficiency and yield, and has good mechanical properties.

As an optimization, a movable mold insert and a fixed mold insert are respectively embedded in the movable mold cover plate and the fixed mold cover plate, and when the fixed mold and the movable mold are closed, the movable mold insert and the fixed mold insert A disc cavity and a pouring channel are formed between the blocks, and the surface of the movable mold insert located in the disc cavity is provided with a punch I and a core, and the fixed mold insert is located in the disc The surface in the cavity is provided with a punch II and a core hole which are mirror images of the punch I. The parts subject to greater stress and easy to wear are set as insert structures, which is beneficial to eliminate the gas in the cavity, improve product quality, and facilitate the repair and replacement of die-casting molds.

As an optimization, the punch I is the punch insert I embedded in the movable mold insert, and the punch II is the punch insert II embedded in the fixed mold insert. The parts subject to greater stress and easy to wear are set as insert structures, which is beneficial to eliminate the gas in the cavity, improve product quality, and facilitate the repair and replacement of die-casting molds.

As an optimization, the circular hole core I includes a through hole I arranged on the movable mold insert and perpendicular to the fixed mold insert and a core strip I matched with the through hole I, and the through hole I is away from One end of the fixed mold insert is provided with a limit groove I, and the end of the core strip I away from the fixed mold insert is provided with a limit block I matched with the limit groove I, and the circular hole core II includes a On the movable mold insert and perpendicular to the through hole II of the fixed mold insert and the core strip II matched with the through hole II, the end of the through hole II away from the fixed mold insert is provided with a limiting groove II, so The end of the core bar II which is far away from the fixed mold insert is provided with a limiting block II which matches the limiting groove II. The parts subject to greater stress and easy to wear are set as insert structures, which is beneficial to eliminate the gas in the cavity, improve product quality, and facilitate the repair and replacement of die-casting molds.

As an optimization, a push plate is provided between the bottom plate of the movable mold and the cover plate of the movable mold, and a push rod and a reset rod are arranged on the push plate, one end of the push rod is connected with the push plate, and the other end passes through the movable mold The sleeve plate and the movable mold insert extend into the pouring runner, and one end of the reset rod is connected with the push plate, and the other end passes through the movable mold sleeve plate and the movable mold insert and conflicts with the surface of the fixed mold insert. Ejector pins facilitate quick and smooth demolding of castings. After the ejector rod pushes out the casting, the reset rod can quickly and accurately return the push plate to its original position.

To sum up, the utility model has the advantages of: the utility model can make the multi-groove aluminum alloy disc formed by die-casting dense, with high dimensional accuracy, less machining allowance and high finish, less material waste, and improved production efficiency and yield, and has good mechanical properties, which can realize mass production.

Description of drawings

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the enlarged schematic view of the local structure of the utility model;

Fig. 3 is the structural representation of punch and core on the movable mold of the present utility model;

Fig. 4 is a structural schematic view of the upper punch and the core hole of the fixed mold of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 to 4, a multi-slot aluminum alloy disc die-casting mold in this specific embodiment includes a fixed mold and a movable mold, and the fixed mold includes a fixed mold bottom plate 1 and a fixed mold cover plate 2, The fixed mold cover plate 2 is provided with a sprue 3, and the movable mold includes a movable mold bottom plate 4 and a movable mold cover plate 5. When the fixed mold and the movable mold are closed, the movable mold cover plate 5 and the fixed mold cover plate 2 are formed with a product cavity 6 and a pouring runner 7, the pouring runner 7 communicates with the pouring port 3 and the product cavity 6 respectively, and the product cavity 6 is a disc cavity, so The movable mold cover plate 5 is respectively provided with a punch I8 and a core on the surface located in the disc cavity, and the fixed mold cover plate 2 is respectively provided with the surface corresponding to the disc cavity. The convex mold I8 is mirror-symmetrical to the convex mold II9 and the core hole matched with the core. The convex mold I8 includes a cylindrical convex mold arranged in the center of the disc cavity, and the cylindrical convex mold is centered on it There are 3 bar-shaped punches extending outward evenly in a straight line. The end of the bar-shaped punch is centered on the cylindrical punch and extends counterclockwise with an arc-shaped punch. The round hole core I at the end of the shaped punch and the round hole core II between the cylindrical punch and the arc punch, the core holes include the round hole core I and the round hole core respectively. The round hole core hole I10 and the round hole core hole II11 matched by II, when the fixed mold and the movable mold are closed, the round hole core I and the round hole core II can be inserted into the round hole core hole I10 and the round hole respectively. Hole type core hole II11.

In this specific embodiment, the movable mold insert 12 and the fixed mold insert 13 are respectively embedded in the movable mold cover plate 5 and the fixed mold cover plate 2. When the fixed mold and the movable mold are closed, the movable mold A disk cavity and a pouring runner 7 are formed between the insert 12 and the fixed mold insert 13, and the surface of the movable mold insert 12 located in the disk cavity is provided with a convex mold I8 and a core, so The surface of the fixed mold insert 13 located in the disc cavity is provided with a convex mold II 9 and a core hole which are mirror images of the convex mold I 8 .

In this specific embodiment, the punch I8 is the punch insert I embedded in the movable mold insert 12, and the punch II9 is the punch insert II embedded in the fixed mold insert 13.

In this specific embodiment, the circular hole core I includes a through hole I14 arranged on the movable mold insert 12 and perpendicular to the fixed mold insert 13 and a core strip I15 matched with the through hole I14. The end of the through hole I14 away from the fixed mold insert 13 is provided with a limiting groove I16, and the end of the core strip I15 away from the fixed mold insert 13 is provided with a limiting block I17 matched with the limiting groove I16. The hole core II includes a through hole II18 arranged on the movable mold insert 12 and perpendicular to the fixed mold insert 13 and a core bar II19 matched with the through hole II18, and the through hole II18 is far away from the fixed mold One end of the insert 13 is provided with a limiting groove II20, and the end of the core strip II19 away from the fixed mold insert 13 is provided with a limiting block II21 matching with the limiting groove II20.

In this specific embodiment, a push plate 22 is provided between the movable mold bottom plate 4 and the movable mold cover plate 5, and a push rod 23 and a reset rod 24 are arranged on the push plate 22, and one end of the push rod 23 is connected to the The push plate 22 is connected, and the other end passes through the movable mold cover plate 5 and the movable mold insert 12 and then extends into the pouring runner 7. One end of the reset rod 24 is connected with the push plate 22, and the other end passes through the movable mold cover plate 5 and movable mold insert 12 and conflict with fixed mold insert 13 surfaces.

During the implementation process, DCC160 horizontal cold-chamber die-casting machine was selected as the die-testing machine, aluminum-silicon alloy ZL112 was selected as the die-casting material, the inner diameter of the die was selected as Φ60mm, and the specific injection pressure was 14MPa. After the mold is closed, the parting surface is closely attached, and the fitting part of the molded part is closely attached, and the contact area is not less than 3/4. After the mold is closed, the movable mold and the fixed mold are closed along the parting surface to form a product cavity 6. Multiple product cavities 6 can be set according to the situation. The injection punch pushes the high-temperature liquid aluminum alloy liquid under the high pressure of the injection piston. It flows in from the pouring port 3, enters the product cavity 6 through the pouring runner 7, and is cooled and solidified to form. When the mold is opened, the remaining material leaves the injection chamber by means of the forward extension of the injection punch, and is attached to the movable mold together with the casting, and then ejected to take the piece, and reset under the action of the reset rod 24 at the same time, completing a working cycle.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described with reference to the preferred embodiment of the utility model, those of ordinary skill in the art should understand that, Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. a multiple-grooved aluminium alloy disk die-casting forming die, comprise fixed half and moving half, described cover half comprises fixed clamping plate and cover half cage plate, cover half cage plate is provided with sprue gate, described dynamic model comprises moving clamping plate and dynamic model cage plate, when fixed half and moving half matched moulds, product die cavity and cast runner is formed between described dynamic model cage plate and cover half cage plate, described cast runner is communicated with described product die cavity with described sprue gate respectively, it is characterized in that: described product die cavity is disk die cavity, the surface that described dynamic model cage plate is positioned at described disk die cavity is respectively equipped with punch I and core, the surface that described cover half cage plate is positioned at described disk die cavity is respectively equipped with and the punch II of described punch I specular and the cored hole that matches with core, described punch I comprises the cylinder punch being arranged on described disk die cavity center, described cylinder punch outside uniform intervals straight line centered by it is extended with multiple bar shaped punch, the end of described bar shaped punch is extended with arc punch in the counterclockwise direction centered by described cylinder punch, described core comprises the circular hole core I that is separately positioned on arc punch end and the circular hole core II between described cylinder punch and described arc punch, described cored hole comprises the circular hole core bore I and circular hole core bore II that match with circular hole core I and circular hole core II respectively, when fixed half and moving half matched moulds, circular hole core I and circular hole core II can insert in circular hole core bore I and circular hole core bore II respectively.

2. multiple-grooved aluminium alloy disk die-casting forming die according to claim 1, it is characterized in that: in described dynamic model cage plate and described cover half cage plate, be embedded with moving die insert and fixed die insert respectively, when fixed half and moving half matched moulds, disk die cavity and cast runner is formed between described moving die insert and fixed die insert, the surface that described moving die insert is positioned at described disk die cavity is provided with punch I and core, and the surface that described fixed die insert is positioned at described disk die cavity is provided with and the punch II of described punch I specular and cored hole.

3. multiple-grooved aluminium alloy disk die-casting forming die according to claim 1, is characterized in that: described punch I is for being embedded into the punch insert I in moving die insert, and described punch II is for being embedded into the punch insert II in fixed die insert.

4. multiple-grooved aluminium alloy disk die-casting forming die according to claim 1, it is characterized in that: described circular hole core I comprises and to be arranged on moving die insert and perpendicular to the through hole I of described fixed die insert and the core bar I that matches with through hole I, described through hole I is provided with stopper slot I away from one end of fixed die insert, described core bar I is provided with away from one end of fixed die insert the limited block I matched with stopper slot I, described circular hole core II comprises and to be arranged on moving die insert and perpendicular to the through hole II of described fixed die insert and the core bar II that matches with through hole II, described through hole II is provided with stopper slot II away from one end of fixed die insert, described core bar II is provided with away from one end of fixed die insert the limited block II matched with stopper slot II.

5. multiple-grooved aluminium alloy disk die-casting forming die according to claim 1, it is characterized in that: between described moving clamping plate and described dynamic model cage plate, be provided with push pedal, push pedal is provided with push rod and release link, one end of described push rod is connected with push pedal, the other end extend into cast runner through after dynamic model cage plate and moving die insert, one end of described release link is connected with push pedal, and the other end is inconsistent with fixed die insert surface through dynamic model cage plate and moving die insert.