Automobile charging pile interface forming die

Abstract

The utility model discloses an automobile charging pile interface forming die which comprises a front die frame and a rear die frame, a rear die core is fixed on the rear die frame, and a front die core is arranged on the front die frame in a matched mode. Two first die-casting grooves are formed in the middle of the rear die core, two first bosses are arranged in the middle of the first die-casting grooves, two second die-casting grooves are formed in the middle of the front die core, the second die-casting grooves and the first die-casting grooves are opposite in position, and a cavity is formed after the second die-casting grooves and the first die-casting grooves are closed; a second boss is arranged in the second die-casting groove and attached to the first boss, and a first receding groove matched with the cinder ladle is formed in the upper portion of the first boss. Accurate positioning between the rear mold core and the front mold core is achieved through the positioning columns and the positioning holes, and the quality of die-casting products is guaranteed; the first avoiding groove for containing the cinder ladle is formed in the first boss, so that the cinder ladle can be formed between the first boss and the second boss, sand holes caused by impurities and air at the jack of the charging pile interface are avoided, and the quality of the charging pile interface is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile molding, and particularly relates to a molding die for an automobile charging pile interface. Background Art

[0002] With the popularization of new energy vehicles, the use of electric vehicles is becoming more and more extensive. Electric vehicles need to be charged when in use. Therefore, there are more and more public or private automobile charging piles. The interface of the automobile charging pile is formed by die casting. After die casting, grinding, sandblasting, finish machining, etc. are also required. Therefore, when die casting the automobile charging pile interface, defects such as sand holes and holes should be minimized as much as possible. There are several hollow structures on the back of the automobile charging pile interface. During conventional die casting, holes are likely to appear at the hollow structure, resulting in an increase in the defective rate. Content of the Utility Model

[0003] In order to solve the above problems, the utility model provides a molding die for an automobile charging pile interface, which has high working efficiency and high qualified product rate.

[0004] To this end, the technical solution of the utility model is: a molding die for an automobile charging pile interface, including a front mold frame and a rear mold frame. A rear mold core is fixed on the rear mold frame, and a front mold core is arranged in a matching manner on the front mold frame; two first die casting grooves are arranged in the middle of the rear mold core, two first bosses are arranged in the middle of the first die casting grooves, two second die casting grooves are arranged in the middle of the front mold core, and the second die casting grooves are opposite to the first die casting grooves in position and form a cavity after being closed; a second boss is arranged in the second die casting groove, the second boss is attached to the first boss, and a first avoidance groove for cooperating with a slag inclusion is arranged above the first boss;

[0005] A support slider assembly is arranged below the first die casting groove. The support slider assembly includes a base, a slider, a support rod and a cylinder. The base is fixed on the rear mold frame, the slider is slidably installed on the base and is connected to the cylinder, and the support rod is installed on the slider. The cylinder pushes the support rod into the cavity.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: it further includes a sprue bushing. The sprue bushing is fixed on the front mold frame, and a pouring lug is arranged on the rear mold frame. The pouring lug is in close fit with the bottom of the sprue bushing; two liquid inlet runners are connected below the pouring lug, and the liquid inlet runners on both sides are symmetrically arranged left and right and are respectively connected to two first die casting grooves.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the connection part between the liquid inlet runner and the first die casting groove is an expanded pouring gate, and the bottom of the pouring gate is an inclined surface and is inclined towards the notch of the first die casting groove.

[0008] On the basis of the above solution and as a preferred solution of the above solution: positioning columns are provided around the second die-casting groove, positioning holes are provided around the first die-casting groove, and when the second die-casting groove is closed with the first die-casting groove, the positioning columns are inserted into the positioning holes.

[0009] On the basis of the above solution and as a preferred solution of the above solution: a plurality of second avoidance grooves are provided below the first die-casting groove, and the second avoidance grooves are used to accommodate slag bags; the second avoidance grooves are connected to the notch of the first die-casting groove through inclined edges.

[0010] On the basis of the above solution and as a preferred solution of the above solution: a horizontal installation groove is provided in the middle of the slider, a protruding installation block is provided at the bottom of the support rod, and the installation block can be inserted into the installation groove to fix the support rod on the slider.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] 1. Precise positioning is achieved between the rear mold core and the front mold core through positioning columns and positioning holes, ensuring the quality of die-cast products; the first convex platform abuts against the second convex platform. After die-casting, a jack in the middle of the charging pile interface is formed on the outside of the first convex platform and the second convex platform. And a first avoidance groove for accommodating a slag bag is provided on the first convex platform, so that a slag bag can be formed between the first convex platform and the second convex platform, flushing impurities into the first avoidance groove, avoiding sand holes at the jack of the charging pile interface due to impurities and air, and improving the quality of the charging pile interface.

[0013] 2. A plurality of shaping blocks are provided in the first die-casting groove to form a plurality of hollow structures on the back of the automotive charging pile interface. The connection part between the liquid inlet flow channel and the first die-casting groove is an expanded ingate, and the bottom of the ingate is an inclined surface, which can make the molten metal fully enter the first die-casting groove. And the second avoidance groove below the first die-casting groove is connected to the notch of the first die-casting groove through an inclined edge, so that after the molten metal fully flows in the first die-casting groove, it flows into the second avoidance groove, making it not easy to have problems such as notches and holes in the formed hollow structure, greatly improving the die-casting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic split structure diagram of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the rear mold frame of the present utility model;

[0017] Figure 4 is Figure 3 a partial enlarged view of;

[0018] Figure 5It is the front view of the structure of the rear mold base of the present utility model;

[0019] Figure 6 It is the schematic diagram of the structure of the front mold base of the present utility model;

[0020] Figure 7 and Figure 8 is the schematic diagram of the structure of an automotive charging pile interface.

[0021] The markings in the figure are: front mold base 1, front mold core 11, second die-casting groove 12, positioning column 13, second boss 14, rear mold base 2, rear mold core 21, first die-casting groove 22, positioning hole 23, first boss 24, first avoidance groove 25, second avoidance groove 26, inclined edge 27, pouring lug 28, liquid inlet runner 29, pouring gate 210, support slider assembly 3, base 31, slider 32, support rod 33, cylinder 34, pouring sleeve 4, automotive charging pile interface 5, socket 51, square hole 52, hollow structure 53. Specific embodiments

[0022] In the description of the present utility model, it should be noted that for orientation terms, if there are terms such as "center", "horizontal (X)", "vertical (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0023] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meanings of "several" and "a number of" are two or more, unless otherwise clearly and specifically defined.

[0024] Refer to the attached drawings. The forming die for the automobile charging pile interface in this embodiment includes a front die carrier 1 and a rear die carrier 2. A rear die core 21 is fixed on the rear die carrier 2, and a front die core 11 is arranged in a mating manner on the front die carrier 1. Two first die-casting grooves 22 are provided in the middle of the rear die core 21, and two second die-casting grooves 12 are provided in the middle of the front die core 11. The second die-casting grooves 12 are opposite to the first die-casting grooves 22 in position, and a cavity is formed after closing. Positioning columns 13 are provided around the second die-casting grooves 12, and positioning holes 23 are provided around the first die-casting grooves 22. When the second die-casting grooves 12 and the first die-casting grooves 22 are closed, the positioning columns 13 are inserted into the positioning holes 23. The accurate positioning between the rear die core 21 and the front die core 11 is realized through the positioning columns 13 and the positioning holes 23, ensuring the quality of the die-cast products.

[0025] Two first bosses 24 are provided in the middle of the first die-casting groove 22, a second boss 14 is provided in the second die-casting groove 12, the second boss 14 is in fit with the first boss 24, and a first avoidance groove 25 for cooperating with the slag trap is provided above the first boss 24. A plurality of second avoidance grooves 26 are provided below the first die-casting groove 22, and the second avoidance grooves are used to accommodate the slag trap. The second avoidance grooves 26 are connected to the notch of the first die-casting groove 22 through inclined edges 27.

[0026] The first boss 24 abuts against the second boss 14. After die-casting, an insertion hole in the middle of the charging pile interface is formed outside the first boss 24 and the second boss 14. And a first avoidance groove 25 for accommodating the slag trap is provided on the first boss 24, so that a slag trap can be formed between the first boss 24 and the second boss 14, flushing impurities into the first avoidance groove, avoiding sand holes at the insertion hole of the charging pile interface due to impurities and air, and improving the quality of the charging pile interface.

[0027] A support slider assembly 3 is provided below the first die-casting groove 22. The support slider assembly 3 includes a base 31, a slider 32, a support rod 33 and a cylinder 34. The base 31 is fixed on the rear die carrier 2, the slider 32 is slidably installed on the base 31 and is connected to the cylinder 34, the support rod 33 is fixed on the slider 32, and the cylinder 34 pushes the support rod 33 into the cavity and is driven by the cylinder to leave the cavity after die-casting.

[0028] A sprue bushing 4 is also fixed on the front die carrier 1, and a pouring bump 28 is provided on the rear die carrier 2. The pouring bump 28 is in close fit with the bottom of the sprue bushing 4. Two pouring runners 29 are connected below the pouring bump 28. The pouring runners 29 on both sides are symmetrically arranged left and right and are respectively connected to two first die-casting grooves 22. The connection part of the pouring runner 29 and the first die-casting groove 22 is an expanded pouring gate 210, and the bottom of the pouring gate 210 is an inclined surface, inclined towards the notch of the first die-casting groove 22, so that the pouring diameter of the pouring gate 210 is reduced, increasing the flow rate of the molten metal, enabling it to quickly flow into the first die-casting groove 22 and improving the die-casting efficiency.

[0029] The vehicle charging pile interface 5 described in this embodiment is provided with two sockets 51. There is a stepped surface on the inner wall of the socket 51. The first convex block abuts against the second convex block, and the socket is formed after die-casting. At the same time, a square hole 52 is provided on the side wall of the socket 51. The square hole is formed by the front end of the support rod. During die-casting, the cylinder pushes the support rod into the cavity. The front end of the support rod cooperates with the cavity, leaving a square hole on the socket. After die-casting, the cylinder drives the support rod to leave the cavity, facilitating demolding.

[0030] The back of the vehicle charging pile interface 5 is a hollow structure 53, which can increase the heat dissipation area and reduce the weight. The hollow structure is formed by a plurality of shaping blocks in the first die-casting groove. The connection between the liquid inlet flow channel and the first die-casting groove is an expanded ingate, and the bottom of the ingate is an inclined surface, which can enable the molten metal to fully enter the first die-casting groove. And the second avoidance groove below the first die-casting groove is connected to the notch of the first die-casting groove through an inclined edge, so that after the molten metal fully flows in the first die-casting groove, it flows into the second avoidance groove, making the formed hollow structure not prone to problems such as notches and holes, greatly improving the die-casting quality.

[0031] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An injection mold for forming an interface of an electric vehicle charging pile, comprising a front mold base and a rear mold base. A rear mold core is fixed on the rear mold base, and a front mold core is disposed in a mating manner on the front mold base; characterized in that: There are two first die-casting grooves in the middle of the rear mold core. There are two first bosses in the middle of the first die-casting grooves. There are two second die-casting grooves in the middle of the front mold core. The second die-casting grooves are opposite to the first die-casting grooves in position, and a cavity is formed after closing. There is a second boss in the second die-casting groove. The second boss is fitted with the first boss, and there is a first avoidance groove for cooperating with the slag trap above the first boss. There is a support slider assembly below the first die-casting groove. The support slider assembly includes a base, a slider, a support rod and a cylinder. The base is fixed on the rear mold base. The slider is slidably installed on the base and is connected to the cylinder. Therefore, the support rod is installed on the slider, and the cylinder pushes the support rod into the cavity.

2. The forming die for an automobile charging pile interface according to claim 1, wherein: It further includes a sprue bushing. The sprue bushing is fixed on the front mold base. There is a pouring lug on the rear mold base. The pouring lug is closely fitted with the bottom of the sprue bushing. There are two liquid inlet runners connected below the pouring lug. The two liquid inlet runners on both sides are symmetrically arranged left and right and are respectively connected to the two first die-casting grooves.

3. The forming die for an automotive charging pile interface according to claim 2, wherein: The connection part between the liquid inlet runner and the first die-casting groove is an enlarged pouring gate, and the bottom of the pouring gate is an inclined surface, which is inclined towards the notch of the first die-casting groove.

4. The forming die for an automotive charging pile interface according to claim 1, wherein: There are positioning posts around the second die-casting groove. There are positioning holes around the first die-casting groove. When the second die-casting groove and the first die-casting groove are closed, the positioning posts are inserted into the positioning holes.

5. The forming die for an automobile charging pile interface according to claim 1, characterized in that: There are multiple second avoidance grooves below the first die-casting groove. The second avoidance grooves are used to accommodate the slag trap. The second avoidance grooves are connected to the notch of the first die-casting groove through inclined edges.

6. The forming die for an automobile charging pile interface according to claim 1, characterized in that: There is a horizontal installation groove in the middle of the slider. There is a protruding installation block at the bottom of the support rod. The installation block can be inserted into the installation groove to fix the support rod on the slider.

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