CN223902897U

CN223902897U - A die-casting mold for a power distribution box casing

Info

Publication number: CN223902897U
Application number: CN202520321312.6U
Authority: CN
Inventors: 熊俊
Original assignee: Kunshan Beiteng Precision Machinery Manufacturing Co ltd
Current assignee: Kunshan Beiteng Precision Machinery Manufacturing Co ltd
Priority date: 2025-02-26
Filing date: 2025-02-26
Publication date: 2026-02-13
Anticipated expiration: 2035-02-26

Abstract

This utility model relates to the field of die-casting technology for distribution box housings, specifically to a die-casting mold for distribution box housings. This utility model, by setting a push rod and a telescopic spring, allows a demolding cylinder to drive the first plate to compress the telescopic spring when the left and right sides of the distribution box housing are closed. During demolding, the demolding cylinder drives the first plate to stretch outwards, and the telescopic spring rebounds, applying a pulling force in the same direction to the second plate on top of the pulling force provided by the demolding cylinder. This counteracts the adhesive force between the distribution box housing and the second plate, facilitating demolding and improving the demolding efficiency of the distribution box housing.

Description

Distribution box shell die casting die

Technical Field

The utility model relates to the technical field of die casting of distribution box shells, in particular to a die casting die for the distribution box shells.

Background

The block terminal is one of the important parts of the car, and the block terminal includes a block terminal housing and a high voltage power distribution module disposed in the block terminal housing, wherein the block terminal housing is generally prepared by a die casting mold.

The die casting die is a tool for casting metal parts, and generally, the die casting die is used for casting metal or metal alloy parts with the shape and the size limited by the die casting die by casting the metal or metal alloy heated to be in a liquid state into a feed port of a die casting machine.

The existing distribution box shell die-casting die mainly adopts a thimble structure to enable a workpiece to be ejected smoothly after the distribution box shell is cooled and molded, but the distribution box shell is easy to adhere to the die due to the fact that the distribution box shell is made of metal, so that demolding is inconvenient, and demolding efficiency of the distribution box shell is affected.

Disclosure of utility model

The utility model provides a die casting die for a distribution box shell, which comprises the following components in part by weight:

The upper die holder is provided with an upper die core;

the lower die holder is provided with a lower die core;

The demolding assembly comprises two demolding cylinders which are oppositely arranged and a second plate body which is correspondingly arranged with the demolding cylinders, wherein the demolding cylinders and the second plate body are arranged on a lower die holder, the output end of each demolding cylinder is provided with a first plate body, a cavity is formed by mutually combining a lower die core, an upper die core and the second plate body, a push rod is slidably connected onto the first plate body, a telescopic spring is sleeved on the push rod, one end of the telescopic spring is connected with the first plate body, the other end of the telescopic spring is connected with the second plate body, and the push rod is slidably connected with the second plate body.

Further, the first plate body is provided with a first sliding groove, the inner wall of the first sliding groove is provided with a limiting groove, the ejector rod is provided with an ejection part which is arranged in the limiting groove in a sliding mode, and the diameter of the ejection part is larger than that of the ejector rod.

Further, be equipped with on the second plate body and supply gliding second sliding tray of ejector pin, the diapire slope setting of second sliding tray, be equipped with the gag lever post in the second sliding tray, fixedly connected with ball on the gag lever post, the ejector pin is located the one end of second sliding tray and is equipped with the rolling groove, the ball rolls and sets up in the rolling groove, the ejector pin slides to the diapire that supports the second sliding tray.

Further, the demolding assembly further comprises a third plate body connected to the ejector rod, a connecting rod is connected to the second plate body, the connecting rod is connected with the third plate body in a sliding mode, and a third sliding groove for the connecting rod to slide is formed in the third plate body.

Further, two connecting rods are arranged, and the two connecting rods are arranged in pairs relative to the ejector rod.

Furthermore, a sprue bush is arranged on the upper die holder, the upper die core and the lower die core are both provided with pouring channels communicated with the sprue bush, and the pouring channels are communicated with the die cavity in a sealing way.

Furthermore, the upper die holder and the lower die holder are respectively provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively communicated with a die cooling system, cooling channels are respectively arranged in the upper die core and the lower die core, and the cooling channels are respectively communicated with the water inlet and the water outlet.

Further, still include the thimble subassembly, the thimble subassembly is including setting up the driving piece on the die holder, set up the thimble board of driving piece output and set up a plurality of thimbles on the thimble board, the thimble passes die holder and lower mould benevolence and contact with the block terminal shell, the driving piece is used for driving the thimble board and drives the thimble and deviate from the lower mould benevolence with the block terminal shell.

The utility model has the beneficial effects that the ejector rod and the telescopic spring are arranged, when the distribution box shell is assembled left and right, the demoulding cylinder drives the first plate body to compress the telescopic spring, when the distribution box shell is demoulded, the demoulding cylinder drives the first plate body to stretch outwards, the telescopic spring rebounds, and the second plate body is given a same-direction tensile force on the basis of the tensile force given by the demoulding cylinder, so that the adhesion force of the distribution box shell to the second plate body is counteracted, the distribution box shell is convenient to demould, and the demoulding efficiency of the distribution box shell is improved.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a perspective view of a power distribution box housing described in the background art;

Fig. 2 is an overall structure diagram of a die-casting die for a distribution box shell according to an embodiment of the present utility model;

fig. 3 is a right side view of the die casting mold for the distribution box housing shown in fig. 2;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

Fig. 5 is a top view of the die casting mold for the distribution box housing shown in fig. 2;

FIG. 6 is a B-B cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view of FIG. 6 at A;

Fig. 8 is an A-A cross-sectional view of a die casting die for a distribution box housing according to another embodiment of the present utility model.

The reference numerals are 100, a distribution box shell die casting mold, 10, an upper mold base, 11, an upper mold core, 111, a runner, 12, a cavity, 13, a sprue bush, 14, a water inlet, 15, a water outlet, 20, a lower mold base, 21, a lower mold core, 30, a demolding assembly, 31, a demolding cylinder, 32, a second plate body, 321, a second sliding groove, 322, a limiting rod, 323, a ball, 324, a connecting rod, 33, a first plate body, 331, a first sliding groove, 332, a limiting groove, 34, an ejector rod, 341, an ejector part, 342, a rolling groove, 35, a telescopic spring, 36, a third plate body, 361, a third sliding groove, 40, an ejector pin assembly, 41, an ejector pin plate, 42, an ejector pin, 200 and a distribution box shell.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram illustrating the basic of the utility model only by way of illustration, and therefore shows only the constitution related to the utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-8, an embodiment of the present utility model provides a die casting mold 100 for a housing of a distribution box, which includes an upper die holder 10, a lower die holder 20, and a demolding assembly 30, wherein an upper die core 11 is disposed on the upper die holder 10, and a lower die core 21 is disposed on the lower die holder 20. The demoulding assembly 30 comprises two demoulding cylinders 31 which are oppositely arranged and a second plate body 32 which is correspondingly arranged with the demoulding cylinders 31, wherein the demoulding cylinders 31 and the second plate body 32 are both arranged on the lower die holder 20, the output end of the demoulding cylinders 31 is provided with a first plate body 33, the lower die core 21, the upper die core 11 and the second plate body 32 are mutually combined to form a die cavity 12, a push rod 34 is slidably connected onto the first plate body 33, a telescopic spring 35 is sleeved on the push rod 34, one end of the telescopic spring 35 is fixedly connected with the first plate body 33, the other end of the telescopic spring 35 is fixedly connected with the second plate body 32, and one end, far away from the first plate body 33, of the push rod 34 is slidably connected onto the second plate body 32. The second plate 32 is slidably disposed on the lower die holder 20.

Through setting up ejector pin 34 and extension spring 35, when controlling the compound die to block terminal shell 200, drawing of patterns cylinder 31 drive first plate body 33 compression extension spring 35, when the drawing of patterns, drawing of patterns cylinder 31 drive first plate body 33 outwards stretches, and extension spring 35 rebound gives a syntropy pulling force to second plate body 32 on the pulling force basis that drawing of patterns cylinder 31 gave to offset the adhesion of block terminal shell 200 to second plate body 32, be convenient for carry out the drawing of patterns, thereby improve the drawing of patterns efficiency of block terminal shell 200.

Further, the first plate 33 is provided with a first sliding groove 331, a limiting groove 332 is provided on an inner wall of the first sliding groove 331, the ejector rod 34 is provided with an ejector part 341 slidably disposed in the limiting groove 332, and a diameter of the ejector part 341 is larger than a diameter of the ejector rod 34. Specifically, in the present embodiment, the ejection portion 341 has a disc-shaped structure.

Further, a second sliding groove 321 for sliding the ejector rod 34 is formed in the second plate body 32, the bottom wall of the second sliding groove 321 is obliquely arranged, a limiting rod 322 is arranged in the second sliding groove 321, a ball 323 is fixedly connected to the limiting rod 322, a rolling groove 342 is formed in one end, located in the second sliding groove 321, of the ejector rod 34, the ball 323 is arranged in the rolling groove 342 in a rolling mode, and the ejector rod 34 slides to abut against the bottom wall of the second sliding groove 321. Specifically, in the present embodiment, the distance between the end of the ejector rod 34 and the bottom wall of the second sliding groove 321 is adapted to the optimum distance from the initial position of the second plate 32 to the position when the cavity 12 is formed. The ball 323 and the stop lever 322 are arranged to limit the moving range of the ejector rod 34 after compressing the telescopic spring 35, so that the condition that the second plate 32 is excessively pressed by the ejector rod 34 to damage the distribution box shell 200 during die assembly is avoided.

Optionally, referring to fig. 8, in other embodiments, the demolding assembly 30 further includes a third plate 36 fixedly connected to the ejector rod 34, and the extension spring 35 is divided into two parts disposed between the first plate 33 and the third plate 36, and between the second plate 32 and the third plate 36. The second plate 32 is fixedly connected with a connecting rod 324, the connecting rod 324 is slidably connected with the third plate 36, and the third plate 36 is provided with a third sliding groove 361 for sliding the connecting rod 324. Further, two connecting rods 324 are provided, and the two connecting rods 324 are provided in pairs with respect to the jack 34. The connecting rod 324 and the third plate 36 support the ejector rod 34, so that the sliding stability of the ejector rod 34 is improved.

The upper die holder 10 is provided with a sprue bush 13, and the upper die core 11 and the lower die core 21 are respectively provided with a runner 111 communicated with the sprue bush 13, and the runner 111 is communicated with the cavity 12 in a sealing way.

The upper die holder 10 and the lower die holder 20 are respectively provided with a water inlet 14 and a water outlet 15, the water inlet 14 and the water outlet 15 are respectively communicated with a die cooling system, cooling channels are respectively arranged in the upper die core 11 and the lower die core 21, and the cooling channels are respectively communicated with the water inlet 14 and the water outlet 15. The cooling channels and the mold cooling system are not shown in the drawings, the water inlet 14 and the water outlet 15 are only partially shown in the drawings, the mold cooling system is in the prior art, and the details are omitted in this embodiment.

Further, the die casting mold 100 for the distribution box shell further comprises a thimble assembly 40, the thimble assembly 40 comprises a driving piece arranged on the lower die holder 20, a thimble 42 plate 41 arranged at the output end of the driving piece and a plurality of thimbles 42 arranged on the thimble 42 plate 41, the thimbles 42 penetrate through the lower die holder 20 and the lower die core 21 and are in contact with the distribution box shell 200, and the driving piece is used for driving the thimble 42 plate 41 to drive the thimbles 42 to separate the distribution box shell from the lower die core 21. Specifically, in this embodiment, the driving member is a cylinder, which is not shown.

In the die casting process, the die casting machine injects the metal or metal alloy heated into a liquid state into the upper die holder 10 through the sprue bush 13, and flows into the cavity 12 along the pouring channels 111 on the upper die core 11 and the lower die core 21 in sequence to form the distribution box housing 200. And then the cooling water is respectively introduced into the upper die holder 10 and the lower die holder 20 through the corresponding water inlets 14 by a die cooling system, and respectively enters the cooling channels of the upper die core 11 and the lower die core 21 to cool the distribution box shell 200 after die casting. After cooling, the die casting machine controls the upper die core 11 to move away, and the driving member drives the ejector pins 42 to move upwards until the distribution box housing 200 is separated from the lower die core 21, and then the distribution box housing 200 is removed.

Claims

1. A distribution box housing die casting die, comprising:

The upper die holder is provided with an upper die core;

the lower die holder is provided with a lower die core;

2. The die casting die for the distribution box shell according to claim 1, wherein the first plate body is provided with a first sliding groove, the inner wall of the first sliding groove is provided with a limiting groove, the ejector rod is provided with an ejector part which is arranged in the limiting groove in a sliding manner, and the diameter of the ejector part is larger than that of the ejector rod.

3. The die casting die for the distribution box shell according to claim 2, wherein the second plate body is provided with a second sliding groove for sliding a push rod, the bottom wall of the second sliding groove is obliquely arranged, a limiting rod is arranged in the second sliding groove, a ball is fixedly connected to the limiting rod, one end of the push rod, which is positioned in the second sliding groove, is provided with a rolling groove, the ball is arranged in the rolling groove in a rolling mode, and the push rod slides to prop against the bottom wall of the second sliding groove.

4. The die casting die for the distribution box shell according to claim 3, wherein the demolding assembly further comprises a third plate body connected to the ejector rod, the second plate body is connected with a connecting rod, the connecting rod is in sliding connection with the third plate body, and a third sliding groove for the connecting rod to slide is formed in the third plate body.

5. The die casting die for the shell of the distribution box according to claim 4, wherein two connecting rods are arranged, and the two connecting rods are arranged in pairs with respect to the ejector rod.

6. The die casting mold for the distribution box shell according to claim 1, wherein a sprue bush is arranged on the upper mold base, pouring channels communicated with the sprue bush are arranged on the upper mold core and the lower mold core, and the pouring channels are communicated with the cavity in a closed mode.

7. The die casting die for the distribution box shell according to claim 1, wherein the upper die holder and the lower die holder are respectively provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively communicated with a die cooling system, cooling channels are respectively arranged in the upper die core and the lower die core, and the cooling channels are respectively communicated with the water inlet and the water outlet.

8. The die casting die for the distribution box shell according to claim 1, further comprising a thimble assembly, wherein the thimble assembly comprises a driving piece arranged on the lower die holder, a thimble plate arranged at the output end of the driving piece and a plurality of thimbles arranged on the thimble plate, the thimble passes through the lower die holder and the lower die core and is contacted with the distribution box shell, and the driving piece is used for driving the thimble plate to drive the thimble to separate the distribution box shell from the lower die core.