CN218656754U - Automobile shock attenuation end cover die casting die - Google Patents

Abstract

The utility model discloses a car shock attenuation end cover die casting die, the runner has been seted up to top one side of cover half, and the inside of cover half is located geometric center below and is equipped with the main runner, and the side runner has all been seted up on the main both sides inner wall of watering, and the side runner one end extends to the front and back both sides inner wall department of die cavity respectively. The utility model discloses because the position that the owner was watered the place is the geometric center below of cover half, consequently it is the same to flow into the inside aluminium liquid of die cavity through the owner and reachs the die cavity edge pressure that receives everywhere, with this can improve the performance strength of product greatly, avoid potential cracked risk, and aluminium liquid can flow to the border position of die cavity through the side is watered and the in-process of watering at the owner of flowing through to this, the effect of flow supplement has been played with this, aluminium liquid is from the owner to water the end order that has realized the homogeneous stability of die cavity and fill, be favorable to the evenly distributed in temperature field, realize the order and solidify, avoid solidifying the later stage and cause the shrinkage cavity, shrinkage porosity and stress concentration medium defect.

Description

Automobile shock attenuation end cover die casting die

Technical Field

The utility model relates to a die casting die technical field specifically is an automobile shock attenuation end cover die casting die.

Background

The die-casting technology is a metal casting technology, and compared with the traditional casting technology, the die-casting technology is characterized in that pressure is applied to molten metal in a die, and has the advantages of high production efficiency, simple process, higher tolerance grade of a casting, good surface roughness and high mechanical strength, so that a large number of machining processes and equipment can be saved, and raw materials are saved. Pressure casting is a special casting method which is developed quickly in the modern metal processing technology and has less cutting, but the die casting technology needs a special die and special equipment, so the cost of the die casting technology is relatively high, and the die casting technology is only suitable for mass production. The production of the automobile shock absorption end cover needs to use a die-casting die for die-casting production.

In the die-casting die in the prior art, the pressure applied to all parts of the edge of a cavity by molten aluminum cannot be guaranteed to be the same in the molten aluminum pouring process, the risk of potential fracture exists after a product is formed, the molten aluminum in the cavity cannot be sequentially filled, and the uniform distribution of a temperature field is not facilitated. Therefore, it is necessary to design a die-casting mold for the automobile shock absorption end cover.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an automobile shock attenuation end cover die casting die, because the position that the owner watered the place is the geometric center below of cover half, consequently it is the same to flow into the inside aluminium liquid of die cavity arrival die cavity edge everywhere received through the owner, with this can improve the performance strength of product greatly, avoid potential cracked risk, and aluminium liquid can flow to the border position of die cavity through the side is watered at the main in-process of watering of flowing through, with this effect of flow supplement has been played, aluminium liquid is filled to the terminal order that has realized the homogeneity stability of die cavity from main department of watering, be favorable to the evenly distributed in temperature field, realize the order solidification, avoid solidifying the later stage and causing the shrinkage cavity, shrinkage porosity and stress concentration medium defect.

In order to achieve the above object, the utility model provides a following technical scheme: a die-casting die for an automobile shock absorption end cover comprises a movable die and a fixed die, wherein the fixed die is arranged at the top of the movable die,

a sprue is arranged on one side of the top of the fixed die, a main pouring gate is arranged below the geometric center in the fixed die, side pouring gates are arranged on the inner walls of the two sides of the main pouring gate, one end of each side pouring gate extends to the inner walls of the front side and the rear side of the cavity respectively, one end of the main pouring gate is connected with the tail end of a pressure pipe in the fixed die, and the top end of the pressure pipe is fixed in the sprue through a sprue bush;

and a cavity is formed in the center of the top of the movable die.

Preferably, the bottom of the fixed die is positioned around the main pouring gate and provided with exhaust grooves, and the exhaust grooves on one adjacent side are connected with the exhaust holes on the side edge of the fixed die through exhaust channels.

Preferably, an overflow groove penetrating through the cavity is formed in the side edge of the movable die, and the overflow groove is located at the highest position inside the cavity.

Preferably, the bottom of the movable mold is connected with a movable plate through a limiting column in a sliding mode, a plurality of ejector pins are mounted at the top of the movable plate, and the top ends of the ejector pins penetrate through holes in the bottom of the movable mold and are located inside the cavity.

Preferably, guide columns are fixed on the periphery of the top of the movable die and are inserted into guide holes in the periphery of the fixed die.

Preferably, the side edges of the movable mold and the fixed mold are symmetrically provided with pressing plate grooves.

Preferably, the connection position of the movable mold and the fixed mold is connected through a link protection plate.

The utility model has the advantages that:

1. because the position of the main pouring gate is below the geometric center of the fixed die, the pressure applied to all parts of the edge of the die cavity by the aluminum liquid flowing into the die cavity through the main pouring gate is the same, so that the performance strength of a product can be greatly improved, the risk of potential fracture is avoided, the aluminum liquid can flow to the edge position of the die cavity through the side pouring gate in the process of flowing through the main pouring gate, the flow supplementing effect is achieved, uniform and stable sequential filling of the aluminum liquid is realized from the main pouring gate to the tail end of the die cavity, the uniform distribution of a temperature field is facilitated, sequential solidification is realized, and the defects of shrinkage cavity, shrinkage porosity, stress concentration and the like caused in the later solidification stage are avoided;

2. the exhaust groove is arranged in parallel with the main pouring gate, so that the exhaust is more smooth in the pouring process;

3. the overflow groove is positioned at the highest position in the cavity, so that the overflow groove is the position filled in the cavity finally, and the transfer of casting defects and the feeding of the cavity in the pressure maintaining process are facilitated;

4. the movable plate moves upwards at the bottom of the movable die, so that the ejector pin is driven to move upwards in the through hole, the automobile damping end cover in the cavity is ejected out, and the product can be discharged quickly.

Drawings

The accompanying drawings 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 and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the movable mold of the present invention;

FIG. 3 is a second schematic view of the three-dimensional structure of the movable mold of the present invention;

FIG. 4 is a schematic view of the fixed mold structure of the present invention;

reference numbers in the figures: 1. moving the mold; 2. fixing a mold; 3. a cavity; 4. a gate; 5. a main runner; 6. a side runner; 7. a pressure pipe; 8. a sprue bush; 9. an exhaust groove; 10. an exhaust passage; 11. an exhaust hole; 12. an overflow trough; 13. a limiting post; 14. a movable plate; 15. a thimble; 16. a through hole; 17. a guide post; 18. a guide hole; 19. a platen slot; 20. the protection plate is linked.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 invention. Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings.

Example one

Given by fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides the following technical solutions: a die-casting die for an automobile shock absorption end cover comprises a movable die 1 and a fixed die 2, the fixed die 2 is arranged at the top of the movable die 1,

a sprue 4 is formed in one side of the top of the fixed die 2, a main pouring gate 5 is arranged below a geometric center in the fixed die 2, side pouring gates 6 are formed in inner walls of two sides of the main pouring gate 5, one end of each side pouring gate 6 extends to inner walls of the front side and the rear side of the cavity 3 respectively, one end of the main pouring gate 5 is connected with the tail end of a pressure pipe 7 in the fixed die 2, and the top end of the pressure pipe 7 is fixed in the sprue 4 through a sprue bush 8;

preferably, the die cavity 3 has been seted up in the top center department of movable mould 1, aluminium liquid passes through runner 4 and arrives main 5 of watering through runner cover 8 and pressure pipe 7, and water 5 and side runner 6 through main inside completion automobile shock attenuation end cover shaping that flow into die cavity 3, because the position that water 5 belonged to main is the geometric centre below of cover half 2, consequently it is the same that the pressure that the aluminium liquid that flows into die cavity 3 inside through main 5 of watering reachs die cavity 3 edge everywhere received, so as to improve the performance strength of product greatly, avoid potential cracked risk, and aluminium liquid can flow to the border position of die cavity 3 through side runner 6 in the process of watering 5 mainly flowing through, with this effect of having played the benefit of flowing, aluminium liquid has realized homogeneous stable order from main 5 of watering and has filled to die cavity 3 terminal, be favorable to the evenly distributed in the temperature field, realize order and solidify, avoid the later stage to cause the shrinkage cavity, shrinkage porosity and stress concentration medium defect.

Preferably, the guide posts 17 are fixed on the periphery of the top of the movable mold 1, and the guide posts 17 are inserted into the guide holes 18 on the periphery of the fixed mold 2, so that the movable mold 1 and the fixed mold 2 can be accurately positioned conveniently.

Preferably, the side edges of the movable die 1 and the fixed die 2 are symmetrically provided with the pressing plate grooves 19, so that the movable die 1 and the fixed die 2 are conveniently and fixedly connected with a die plate of a die casting machine through the pressing plates and locked.

Preferably, the joint of the movable mold 1 and the fixed mold 2 is connected through a link protection plate 20, and the movable mold 1 and the fixed mold 2 are supported in a reinforcing manner.

Example two

Referring to fig. 1 and 4, as another preferred embodiment, the difference from the first embodiment is that the bottom of the fixed mold 2 is provided with exhaust grooves 9 around the main runner 5, the exhaust grooves 9 on the adjacent sides are connected with the exhaust holes 11 on the side edges of the fixed mold 2 through exhaust channels 10, and the exhaust grooves 9 are arranged in parallel with the main runner 5, which helps to exhaust more smoothly during the casting process.

EXAMPLE III

Referring to fig. 2 and 3, as another preferred embodiment, the difference from the first embodiment is that the side edge of the moving die 1 is provided with an overflow chute 12 penetrating through the cavity 3, the overflow chute 12 is located at the highest position inside the cavity 3, and the overflow chute 12 is located at the highest position inside the cavity 3, so that the last filled position in the cavity 3 is beneficial to transferring casting defects and feeding the cavity during the pressure maintaining process.

Example four

Referring to fig. 1, fig. 2 and fig. 3, as another preferred embodiment, the difference from the first preferred embodiment is that the bottom of the movable mold 1 is slidably connected with a movable plate 14 through a limiting column 13, a plurality of ejector pins 15 are installed on the top of the movable plate 14, the top ends of the ejector pins 15 penetrate through holes 16 in the bottom of the movable mold 1 and are located inside the cavity 3, and the movable plate 14 moves upward at the bottom of the movable mold 1, so that the ejector pins 15 are driven to move upward inside the through holes 16, and the automobile shock absorption end cover inside the cavity 3 is ejected, thereby facilitating the rapid discharging of the product.

The working principle is as follows:

aluminium liquid passes through runner 4 and waters 5 through runner cover 8 and pressure pipe 7 arrival owner, and water 5 and side through the owner and water 6 inside completion automobile shock attenuation end cover shaping that flows into die cavity 3, because the position that the owner was watered 5 place is the geometric centre below of cover half 2, consequently it is the same to water 5 inside aluminium liquid arrival die cavity 3 edges everywhere received pressure of die cavity 3 through owner, with this performance strength that can improve the product greatly, avoid potential cracked risk, and aluminium liquid can flow to the border position of die cavity 3 through side water 6 at the in-process of watering 5 mainly of flowing through, with this effect of having played the benefit flow, aluminium liquid is from pouring 5 departments to 3 terminal order filling of die cavity of homogeneous stability of having realized to the die cavity, be favorable to the evenly distributed in temperature field, realize the order and solidify, avoid the later stage of solidifying to cause the shrinkage cavity, shrinkage porosity and stress concentration medium defect.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides an automobile shock attenuation end cover die casting die, includes movable mould (1) and cover half (2), the top of movable mould (1) is provided with cover half (2), its characterized in that:

a pouring gate (4) is formed in one side of the top of the fixed die (2), a main pouring gate (5) is arranged below the geometric center in the fixed die (2), side pouring gates (6) are formed in the inner walls of the two sides of the main pouring gate (5), one ends of the side pouring gates (6) extend to the inner walls of the front side and the rear side of the cavity (3) respectively, one end of the main pouring gate (5) is connected with the tail end of a pressure pipe (7) in the fixed die (2), and the top end of the pressure pipe (7) is fixed in the pouring gate (4) through a pouring gate sleeve (8);

and a cavity (3) is formed in the center of the top of the movable mold (1).

2. The automobile shock absorption end cover die-casting die of claim 1, wherein: the bottom of the fixed die (2) is positioned around the main pouring gate (5) and is provided with an exhaust groove (9), and the exhaust groove (9) on one adjacent side is connected with an exhaust hole (11) on the side edge of the fixed die (2) through an exhaust channel (10).

3. The automobile shock absorption end cover die-casting die of claim 1, wherein: the side edge of the moving die (1) is provided with an overflow groove (12) penetrating through the die cavity (3), and the overflow groove (12) is positioned at the highest position in the die cavity (3).

4. The automobile shock absorption end cover die-casting die of claim 1, wherein: the bottom of the movable mold (1) is connected with a movable plate (14) through a limiting column (13) in a sliding mode, a plurality of ejector pins (15) are installed at the top of the movable plate (14), and the top ends of the ejector pins (15) penetrate through holes (16) in the bottom of the movable mold (1) and are located in the cavity (3).

5. The die-casting die for the automobile shock absorption end cover as claimed in claim 1, wherein: and guide columns (17) are fixed on the periphery of the top of the movable mold (1), and the guide columns (17) are inserted into guide holes (18) on the periphery of the fixed mold (2).

6. The automobile shock absorption end cover die-casting die of claim 1, wherein: and the side edges of the movable mold (1) and the fixed mold (2) are symmetrically provided with pressing plate grooves (19).

7. The automobile shock absorption end cover die-casting die of claim 1, wherein: the connection part of the movable mold (1) and the fixed mold (2) is connected through a link protection plate (20).

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