Distribution box shell die-casting die

Abstract

The utility model relates to the technical field of power distribution box shell die-casting, in particular to a power distribution box shell die-casting die, which is characterized in that an ejector rod and a telescopic spring are arranged, a demoulding cylinder drives a first plate body to compress the telescopic spring during left and right die assembly of a power distribution box shell, and the demoulding cylinder drives the first plate body to stretch outwards during demoulding; and the telescopic spring rebounds, and on the basis of the pulling force given by the demolding air cylinder, the pulling force in the same direction is given to the second plate body, so that the adhesive force of the distribution box shell to the second plate body is counteracted, demolding is facilitated, and the demolding efficiency of the distribution box shell is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power distribution box shell die casting, specifically relates to a power distribution box shell die casting mould. BACKGROUND

[0002] The power distribution box is one of the important parts of the automobile, and the power distribution box comprises a power distribution box shell and a high-voltage power distribution module arranged in the power distribution box shell, wherein the power distribution box shell is usually prepared through a die casting mould.

[0003] The die casting mould is a tool for casting metal parts, and the die casting mould usually pours the metal or metal alloy heated to a liquid state into the feeding port of the die casting machine, and then casts the metal or metal alloy parts with the shape and size limited by the mould through the die casting machine.

[0004] The existing power distribution box shell die casting mould usually adopts the pin structure to make the workpiece smoothly out of the mould after the power distribution box shell is cooled and formed, but the power distribution box shell is easy to be bonded to the mould due to the metal material, and the demoulding is not convenient, thereby affecting the demoulding efficiency of the power distribution box shell. UTILITY MODEL CONTENTS

[0005] The utility model provides a power distribution box shell die casting mould, which adopts the technical scheme that:

[0006] The upper die seat is provided with an upper die core;

[0007] The lower die seat is provided with a lower die core;

[0008] The demoulding assembly comprises two demoulding cylinders arranged oppositely and a second plate body arranged correspondingly to the demoulding cylinders, the demoulding cylinders and the second plate body are arranged on the lower die seat, the output end of the demoulding cylinder is provided with a first plate body, the lower die core, the upper die core and the second plate body are combined to form a cavity, a jack rod is slidably connected to the first plate body, a telescopic spring is sleeved on the jack rod, one end of the telescopic spring is connected to the first plate body, the other end of the telescopic spring is connected to the second plate body, and the jack rod and the second plate body are slidably connected.

[0009] 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 jack rod is provided with a ejection part slidably arranged in the limiting groove, and the diameter of the ejection part is greater than the diameter of the jack rod.

[0010] Further, the second plate body is provided with a second sliding groove for sliding of the top rod, a bottom wall of the second sliding groove is arranged obliquely, a limiting rod is arranged in the second sliding groove, and a ball is fixedly connected to the limiting rod, one end of the top rod in the second sliding groove is provided with a rolling groove, and the ball is arranged in the rolling groove in a rolling mode.

[0011] Further, the demolding assembly further comprises a third plate body connected to the top rod, the second plate body is connected with a connecting rod, the connecting rod and the third plate body are connected in a sliding mode, and the third plate body is provided with a third sliding groove for sliding of the connecting rod.

[0012] Further, the connecting rod is provided with two, and the two connecting rods are arranged in pairs about the top rod.

[0013] Further, the upper mold base is provided with a sprue bushing, the upper mold core and the lower mold core are both provided with a runner in communication with the sprue bushing, and the runner is in closed communication with the cavity.

[0014] Further, the upper mold base and the lower mold base are both provided with a water inlet and a water outlet, the water inlet and the water outlet are both in communication with a mold cooling system, the upper mold core and the lower mold core are both provided with a cooling channel, and the cooling channel is in communication with the water inlet and the water outlet.

[0015] Further, the utility model further comprises a ejector pin assembly, the ejector pin assembly comprises a driving piece arranged on the lower mold base, an ejector pin plate arranged on an output end of the driving piece and a plurality of ejector pins arranged on the ejector pin plate, the ejector pins pass through the lower mold base and the lower mold core and contact the power distribution box shell, and the driving piece is used for driving the ejector pin plate to drive the ejector pins to demold the power distribution box shell.

[0016] The utility model discloses beneficial effect is: the utility model discloses through setting up top rod and telescopic spring, when the power distribution box shell is closed to left and right, the demolding cylinder drives the first plate body to compress telescopic spring, when demolding, the demolding cylinder drives the first plate body to stretch outward, and telescopic spring rebounds, and gives the second plate body a same direction's tension on the basis of the tension of the demolding cylinder, thereby the adhesion of the second plate body to the power distribution box shell is cancelled out, and it is convenient to demold, thereby the demolding efficiency of the power distribution box shell is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in connection with the drawings and examples.

[0018] In the drawings: Figure 1 It is the stereogram of the power distribution box shell in the background art;

[0019] Figure 2 It is the overall structure diagram of the power distribution box shell die casting mould provided by the utility model embodiment.

[0020] Figure 3 As Figure 2 The right view of the power distribution box shell die casting mold shown in the figure;

[0021] Figure 4 As Figure 3 A-A sectional view;

[0022] Figure 5 As Figure 2 The top view of the power distribution box shell die casting mold shown in the figure;

[0023] Figure 6 As Figure 5 B-B sectional view;

[0024] Figure 7 As Figure 6 The enlarged view at A in the figure;

[0025] Figure 8 A-A sectional view of the power distribution box shell die casting mold according to another embodiment of the present application.

[0026] Mark 100, power distribution box shell die casting mold; 10, upper die holder; 11, upper die core; 111, gate; 12, cavity; 13, gate sleeve; 14, water inlet; 15, water outlet; 20, lower die holder; 21, lower die core; 30, demolding assembly; 31, demolding cylinder; 32, second plate body; 321, second sliding groove; 322, limiting rod; 323, ball; 324, connecting rod; 33, first plate body; 331, first sliding groove; 332, limiting groove; 34, ejector rod; 341, ejector part; 342, rolling groove; 35, extension spring; 36, third plate body; 361, third sliding groove; 40, ejector pin assembly; 41, ejector pin plate; 42, ejector pin; 200, power distribution box shell. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the present application will be described in detail with reference to the drawings. The figure is a simplified schematic diagram, which only schematically illustrates the basic of the present application, therefore it only shows the relevant components of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Please refer to Figures 1-8The utility model discloses an electricity distribution box shell die casting mould 100, including upper die seat 10, lower die seat 20 and stripping assembly 30, be equipped with upper die core 11 on upper die seat 10, be equipped with lower die core 21 on lower die seat 20. Stripping assembly 30 includes two stripping cylinders 31 of relative arrangement and the second plate body 32 of stripping cylinder 31 corresponding arrangement, stripping cylinder 31 and second plate body 32 all are arranged on lower die seat 20, the output of stripping cylinder 31 is equipped with first plate body 33, lower die core 21, upper die core 11 and second plate body 32 are combined and form cavity 12, first plate body 33 is slidably connected with the top rod 34, the top rod 34 is sleeved with telescopic spring 35, one end of telescopic spring 35 is fixedly connected with first plate body 33, the other end of telescopic spring 35 is fixedly connected with second plate body 32, the top rod 34 is slidably connected on second plate body 32 with one end away from first plate body 33. Second plate body 32 is slidably arranged on lower die seat 20.

[0029] By setting top rod 34 and telescopic spring 35, when the electricity distribution box shell 200 is closed to the left and right, stripping cylinder 31 drives first plate body 33 to compress telescopic spring 35, when stripping, stripping cylinder 31 drives first plate body 33 to stretch outward, telescopic spring 35 rebounds, and stripping cylinder 31 gives second plate body 32 a same direction tension on the basis of the tension, thereby the adhesion of second plate body 32 to the electricity distribution box shell 200 is offset, and stripping is facilitated, thereby the stripping efficiency of the electricity distribution box shell 200 is improved.

[0030] Further, the first plate body 33 is provided with a first sliding groove 331, the inner wall of the first sliding groove 331 is provided with a limiting groove 332, the top rod 34 is provided with a ejection portion 341 slidably arranged in the limiting groove 332, and the diameter of the ejection portion 341 is greater than that of the top rod 34. Specifically, in the embodiment, the ejection portion 341 is in a disc-shaped structure.

[0031] Further, the second plate body 32 is provided with a second sliding groove 321 for sliding of the top rod 34, the bottom wall of the second sliding groove 321 is inclinedly arranged, the second sliding groove 321 is provided with a limiting rod 322, the limiting rod 322 is fixedly connected with a ball 323, one end of the top rod 34 located in the second sliding groove 321 is provided with a rolling groove 342, the ball 323 is rollingly arranged in the rolling groove 342, and the top rod 34 is slidably arranged to abut against the bottom wall of the second sliding groove 321. Specifically, in the embodiment, the distance between the end of the top rod 34 and the bottom wall of the second sliding groove 321 is adapted to the optimal distance between the initial position of the second plate body 32 and the position when the cavity 12 is formed. The arrangement of the ball 323 and the limiting rod 322 can limit the moving range of the top rod 34 after compression of the telescopic spring 35, thereby avoiding damage to the electricity distribution box shell 200 caused by excessive pressure of the top rod 34 on the second plate body 32 when the mold is closed.

[0032] Optionally, please refer toFigure 8 In some other embodiments, the demolding assembly 30 further comprises a third plate body 36 fixedly connected to the ejector rod 34, and the extension spring 35 is divided into two parts arranged between the first plate body 33 and the third plate body 36 and between the second plate body 32 and the third plate body 36. The second plate body 32 is fixedly connected with a connecting rod 324, the connecting rod 324 is in sliding connection with the third plate body 36, and the third plate body 36 is provided with a third sliding groove 361 for the sliding of the connecting rod 324. Further, the connecting rod 324 is provided with two, and the two connecting rods 324 are arranged in pairs about the ejector rod 34. The connecting rod 324 and the third plate body 36 support the ejector rod 34, improving the stability of the sliding of the ejector rod 34.

[0033] The upper die holder 10 is provided with a sprue bushing 13, and the upper die core 11 and the lower die core 21 are each provided with a runner 111 in communication with the sprue bushing 13, and the runner 111 is in closed communication with the cavity 12.

[0034] The upper die holder 10 and the lower die holder 20 are each provided with a water inlet 14 and a water outlet 15, and the water inlet 14 and the water outlet 15 are in communication with a mold cooling system. The upper die core 11 and the lower die core 21 are each provided with a cooling channel, and the cooling channel is in communication with the water inlet 14 and the water outlet 15. The cooling channel and the mold cooling system are not shown in the figure, and only part of the water inlet 14 and the water outlet 15 are shown in the figure. The mold cooling system is a prior art, and will not be described in detail in the present embodiment.

[0035] Further, the power distribution box shell die 100 further comprises a ejector pin assembly 40, the ejector pin assembly 40 comprises a driving member arranged on the lower die holder 20, an ejector pin 42 plate 41 arranged on the output end of the driving member, and a plurality of ejector pins 42 arranged on the ejector pin 42 plate 41. The ejector pins 42 pass through the lower die holder 20 and the lower die core 21 and are in contact with the power distribution box shell 200. The driving member is used to drive the ejector pin 42 plate 41 to drive the ejector pins 42 to demold the power distribution box shell from the lower die core 21. Specifically, in the present embodiment, the driving member is selected as a pneumatic cylinder, and the driving member is not shown.

[0036] During die casting, the die casting machine injects the heated metal or metal alloy into the upper die holder 10 through the sprue bushing 13, and then flows into the cavity 12 through the runners 111 on the upper die core 11 and the lower die core 21 to form the power distribution box shell 200. Then, the mold cooling system is used to pass cooling water into the upper die holder 10 and the lower die holder 20 through the corresponding water inlets 14, and then into the cooling channels in the upper die core 11 and the lower die core 21, respectively, to cool the die cast power distribution box shell 200. After cooling, the die casting machine controls the upper die core 11 to move away, the driving member drives the ejector pins 42 to move upward until the power distribution box shell 200 is separated from the lower die core 21, and then the power distribution box shell 200 is taken away.

Claims

1. An electrical distribution box housing die-cast mold characterized by, The utility model relates to a mould, including: Upper die seat, be equipped with upper die kernel on the upper die seat; Lower die seat, be equipped with lower die kernel on the lower die seat; Demoulding assembly, the demoulding assembly includes two demoulding cylinders that set up oppositely and second plate body that sets up corresponding with demoulding cylinder, demoulding cylinder and second plate body all set up on lower die seat, the output end of demoulding cylinder is equipped with first plate body, lower die kernel, upper die kernel and second plate body mutually combine and form cavity, first plate body is slidably connected with ejector rod, retractable spring is sleeved on the ejector rod, one end of retractable spring and first plate body connect, the other end of retractable spring and second plate body connect, the ejector rod and second plate body slidably connect.

2. The power distribution box housing die-cast mold of claim 1, wherein: The first plate body is provided with a first sliding groove, and the inner wall of the first sliding groove is provided with a limiting groove.

3. The power distribution box housing die-cast mold of claim 2, wherein: The second plate body is provided with a second sliding groove for sliding of the ejector rod, and the bottom wall of the second sliding groove is inclined.

4. The power distribution box housing die-cast mold of claim 3, wherein: The second plate body is provided with a second sliding groove for sliding of the ejector rod, and the bottom wall of the second sliding groove is inclined.

5. The power distribution box housing die-cast mold of claim 4, wherein: The demoulding assembly further comprises a third plate body connected to the ejector rod, and the second plate body is connected with a connecting rod.

6. The power distribution box housing die-cast mold of claim 1, wherein: The connecting rod and the third plate body are slidably connected.

7. The power distribution box housing die-cast mold of claim 1, wherein: The upper die seat is provided with a gate sleeve, and the upper die kernel and the lower die kernel are both provided with a runner in communication with the gate sleeve.

8. The power distribution box housing die-cast mold of claim 1, wherein: The upper die seat and the lower die seat are both provided with a water inlet and a water outlet, and the water inlet and the water outlet are both in communication with a mold cooling system. The upper die kernel and the lower die kernel are both provided with a cooling channel in communication with the water inlet and the water outlet. The utility model further comprises a ejector pin assembly, which comprises a driving member arranged on the lower die seat, an ejector pin plate arranged on the output end of the driving member, and a plurality of ejector pins arranged on the ejector pin plate. The ejector pins pass through the lower die seat and the lower die kernel and are in contact with the power distribution box shell. The driving member is used to drive the ejector pin plate to drive the ejector pins to remove the power distribution box shell from the lower die kernel.

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