Aluminum alloy hub casting equipment

Abstract

The utility model discloses aluminum alloy hub casting equipment which comprises a machine table, a machine frame is installed at the top end of the machine table, first air cylinders are symmetrically installed at the top end of the machine frame, an upper die is fixed to the movable ends of the first air cylinders, and two sets of vibration assemblies are symmetrically installed on the two sides of the top end of the upper die. The vibration assembly comprises a second air cylinder installed on the upper die, a support is arranged on the outer side of the movable end of the second air cylinder, and a supporting shaft is installed in the support. By arranging the vibration assembly, a second air cylinder in the vibration assembly can make intermittent contact with a connecting rod in the process of mold closing and molten aluminum pouring, the connecting rod is stressed to swing along a supporting shaft on a support, and the connecting rod can drive a contact ball to collide with a side mold in the swing process, so that certain vibration is generated; and gas in the molten aluminum can be quickly discharged through vibration, so that air holes are prevented from being formed in the hub, and the quality of the hub is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium alloy wheel hub casting equipment technical field especially relates to a kind of aluminium alloy wheel hub casting equipment. BACKGROUND

[0002] Wheel hub alias rim, i.e. the circular barrel shape of the inner profile of tire to support tire, center assembly on the part of shaft, common automobile wheel hub has steel wheel hub and aluminium alloy wheel hub. Steel wheel hub is high in strength, and is often used in large truck. But steel wheel hub is heavy in quality, and is single in outer shape, which does not conform to the concept of low carbon and fashion today, and is gradually replaced by aluminium alloy wheel hub. Compared with steel automobile wheel hub, the advantages of aluminium alloy wheel hub are more obvious.

[0003] In the production process of wheel hub, aluminum ingot is first melted and refined at high temperature, then refined, and after refining, degassing is carried out in a degassing tank. After degassing, filtration is carried out, and finally, through distribution flow tank, it is conveyed to pouring pipe and enters the mold for wheel hub casting. However, a large number of bubbles are generated in the aluminum water during pouring process, which cannot be quickly discharged, resulting in pores in the wheel hub and reducing the quality of the wheel hub. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of aluminium alloy wheel hub casting equipment.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] An aluminium alloy wheel hub casting equipment, comprising a machine table, a rack is installed at the top end of the machine table, a first air cylinder is symmetrically installed at the top end of the rack, a movable end of the first air cylinder is fixed with an upper die, two groups of vibration assemblies are symmetrically installed at the top end of the upper die, the vibration assembly comprises a second air cylinder installed on the upper die, a support is arranged on the outer side of the movable end of the second air cylinder, a support shaft is installed in the support, a connecting rod is rotatably connected to the outer side of the support shaft, and a contact ball is fixed to the bottom end of the connecting rod.

[0007] Preferably, a side die is symmetrically arranged below the upper die, and a third air cylinder is connected to the outer side of the side die.

[0008] Preferably, the third air cylinder is fixed on the rack, and the movable end of the third air cylinder is fixedly connected with the side die.

[0009] Preferably, a bottom die is arranged below the two groups of side dies, and the bottom die is fixed on the machine table.

[0010] Preferably, a pouring pipe is installed on one side of the top end of the upper die, and a pouring groove is formed in the upper die corresponding to the pouring pipe.

[0011] Preferably, the upper die is provided with an exhaust port on one side relative to the pouring pipe, and the exhaust port is formed on the upper die.

[0012] Preferably, the fixed end of the first cylinder is mounted on the frame, and the movable end of the first cylinder penetrates the top end of the frame.

[0013] The beneficial technical effects are that:

[0014] By setting the vibration assembly, the second cylinder in the vibration assembly intermittently contacts the connecting rod in the process of closing the mold and pouring the aluminum liquid, the connecting rod swings along the support shaft on the support, and the connecting rod swings to drive the contact ball to collide with the side die, so that the side die is vibrated, the gas in the aluminum liquid is quickly discharged through the vibration, and the gas holes in the hub are prevented, and the quality of the hub is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a preferred embodiment of the structure of the aluminum alloy hub casting equipment according to the utility model;

[0016] Figure 2 It is a preferred embodiment of the main sectional view of the aluminum alloy hub casting equipment according to the utility model;

[0017] Figure 3 It is a preferred embodiment of the position relationship between the upper die, the vibration assembly and the side die of the aluminum alloy hub casting equipment according to the utility model.

[0018] The following is a description of the reference signs:

[0019] 1, machine table; 2, frame; 3, first cylinder; 4, upper die; 5, vibration assembly; 501, second cylinder; 502, support; 503, support shaft; 504, connecting rod; 505, contact ball; 6, side die; 7, third cylinder; 8, bottom die; 9, pouring pipe; 10, exhaust port. DETAILED DESCRIPTION

[0020] In order to make the skilled person in the art more clear and clear the technical scheme of the utility model, the utility model will be further described in detail below in combination with the embodiments and the drawings, but the implementation manner of the utility model is not limited to this.

[0021] As Figures 1-3As shown, the embodiment provides an aluminum alloy wheel hub casting device, which comprises a machine table 1, a rack 2 is installed at the top end of the machine table 1, the rack 2 can support a first cylinder 3 and a third cylinder 7, the rack 2 is symmetrically provided with the first cylinder 3 at the top end, the first cylinder 3 can drive an upper mold 4 to ascend and descend, the movable end of the first cylinder 3 is fixedly provided with the upper mold 4, two groups of vibration assemblies 5 are symmetrically installed at the top end of the upper mold 4, the vibration assembly 5 comprises a second cylinder 501 installed on the upper mold 4, the second cylinder 501 can be intermittently in contact with a connecting rod 504, a support 502 is arranged outside the movable end of the second cylinder 501, the support 502 can be provided with a supporting shaft 503, the supporting shaft 503 is installed in the support 502, the supporting shaft 503 can support the connecting rod 504, the connecting rod 504 is rotatably connected to the outside of the supporting shaft 503, the connecting rod 504 can drive a contact ball 505 to swing, the connecting rod 504 is fixedly provided with the contact ball 505 at the bottom end, and the contact ball 505 can collide with a side mold 6 to generate a certain vibration.

[0022] As shown in the figure, Figures 1-2 The lower sides of the upper mold 4 are symmetrically provided with the side mold 6, the outside of the side mold 6 is connected with the third cylinder 7, and the third cylinder 7 can drive the side mold 6 to open and close.

[0023] As shown in the figure, Figures 1-2 The third cylinder 7 is fixed on the rack 2, and the movable end of the third cylinder 7 is fixedly connected with the side mold 6, so that the third cylinder 7 can be fixed.

[0024] As shown in the figure, Figures 1-2 The lower sides of the two groups of side molds 6 are provided with a bottom mold 8, and the bottom mold 8 is fixed on the machine table 1, so that the bottom mold 8 can be supported and fixed.

[0025] As shown in the figure, Figures 1-2 A pouring pipe 9 is installed at one side of the top end of the upper mold 4, and a pouring groove is formed in the upper mold 4 corresponding to the pouring pipe 9, so that the molten aluminum can enter the mold along the pouring groove through the pouring pipe 9.

[0026] As shown in the figure, Figures 1-2 An exhaust port 10 is arranged on one side of the upper mold 4 opposite to the pouring pipe 9, and the exhaust port 10 is formed on the upper mold 4, so that the gas after pouring the molten aluminum can be discharged through the exhaust port 10.

[0027] As shown in the figure, Figures 1-2 The fixed end of the first cylinder 3 is installed on the rack 2, and the movable end of the first cylinder 3 penetrates through the top end of the rack 2, so that the first cylinder 3 can be supported by the rack 2.

[0028] The working principle of the device: when the device is used, the third cylinder 7 on both sides of the rack 2 drives the side mold 6 to move to the bottom mold 8 until the two sets of side molds 6 are completely closed, at this time the first cylinder 3 at the top of the rack 2 drives the upper mold 4 to move to the bottom mold 8 until the bottom end of the upper mold 4 contacts the top end of the side mold 6, at this time the post-mold closing action can be completed, and during the mold closing process, the aluminum ingot is first melted and refined at high temperature, and then refined, after refining, into the degassing tank for degassing, and AlBe5 intermediate alloy is added in the degassing tank to make the aluminum alloy melt contain 20-100ppm of Be, during the air adding process, multi-point quantitative air adding is adopted, then filtering, finally through the distribution flow groove, the aluminum alloy melt is transported to the pouring pipe 9, and at the distribution flow groove, the aluminum alloy melt temperature at the casting stage is 10-20℃ lower than that at the stable casting stage, the molten aluminum enters the mold through the pouring pipe 9 along the pouring groove to cast the hub, and the second cylinder 501 in the vibration assembly 5 intermittently contacts the connecting rod 504 during the casting process, the connecting rod 504 is forced to swing along the support shaft 503 on the support 502, and the connecting rod 504 swings to make the contact ball 505 collide with the side mold 6, so that a certain vibration is generated, the vibration can make the gas in the molten aluminum quickly discharge, thereby preventing pores in the hub and improving the hub quality, and then the cooling assembly is used for cooling and shaping.

[0029] The above is only a further embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and concept of the present application within the scope disclosed by the present application, which belongs to the protection scope of the present application.

Claims

1. An aluminum alloy wheel hub casting equipment, characterized by: The invention comprises a machine platform (1), wherein a frame (2) is installed on the top of the machine platform (1), a first cylinder (3) is symmetrically installed on the top of the frame (2), an upper mold (4) is fixed on the movable end of the first cylinder (3), two groups of vibration components (5) are symmetrically installed on both sides of the top of the upper mold (4), and the vibration component (5) comprises a second cylinder (501) installed on the upper mold (4), a bracket (502) is provided on the outer side of the movable end of the second cylinder (501), a support shaft (503) is installed in the bracket (502), a connecting rod (504) is rotatably connected to the outer side of the support shaft (503), and a contact ball (505) is fixed on the bottom end of the connecting rod (504).

2. The aluminum alloy wheel hub casting equipment according to claim 1, characterized in that: Side molds (6) are symmetrically arranged on both sides below the upper mold (4), and the outer sides of the side molds (6) are connected to a third cylinder (7).

3. The aluminum alloy wheel hub casting equipment according to claim 2, characterized in that: The third cylinder (7) is fixed on the frame (2), and the movable end of the third cylinder (7) is fixedly connected to the side mold (6).

4. The aluminum alloy wheel hub casting equipment according to claim 3, characterized in that: A bottom mold (8) is provided below the two groups of side molds (6), and the bottom mold (8) is fixed on the machine platform (1).

5. The aluminum alloy wheel hub casting equipment according to claim 2, characterized in that: A pouring pipe (9) is installed on one side of the top end of the upper mold (4), and a pouring groove is provided on the upper mold (4) corresponding to the pouring pipe (9).

6. The aluminum alloy wheel hub casting equipment according to claim 5, characterized in that: An exhaust port (10) is provided on the upper mold (4) on a side opposite to the pouring pipe (9), and the exhaust port (10) is formed on the upper mold (4).

7. The aluminum alloy wheel hub casting equipment according to claim 1, characterized in that: The fixed end of the first cylinder (3) is mounted on the frame (2), and the movable end of the first cylinder (3) passes through the top of the frame (2).

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