A double sprue structure for large-size aluminum wheel hub casting

Abstract

The utility model discloses aluminum wheel hub casting field, more specifically says a kind of double runner structure for large size aluminum wheel hub casting.The utility model aims to provide a kind of double runner structure for large size aluminum wheel hub casting, and beneficial effect is when casting to large size aluminum wheel hub, for facilitating providing double runner structure for large size aluminum wheel hub casting, to improve casting quality, reduce the defect on the surface of cast wheel hub.The utility model aims to realize by following technical scheme: a kind of double runner structure for large size aluminum wheel hub casting, including base and the mould bottom of fixedly connected in the middle part of base surface, mould bottom is fixedly connected with mould frame, the bottom of mould frame left and right sides is equipped with one runner hole respectively, the runner hole outside fixed and communicated with first runner pipe in left side, the top of first runner pipe is fixed and communicated with first flow-through box, and first flow-through box is fixedly connected on support frame.

Description

Technical Field

[0001] This utility model relates to the field of aluminum wheel hub casting, and more specifically to a double-sprue structure for casting large-size aluminum wheel hubs. Background Technology

[0002] Large-size aluminum wheels are widely used in new energy SUVs and commercial vehicles. Their casting requires molten metal to meet the requirements of high flow rate and low turbulence filling to avoid shrinkage cavities and inclusions in the transition zone of the spokes and rim. In existing casting methods, single-runner systems easily lead to reduced casting quality, resulting in surface defects and cold shuts in the cast wheel hubs; this also increases the cost of subsequent welding and rework. Existing technologies are not suitable for providing a dual-runner structure for casting large-size aluminum wheels, thereby improving casting quality and reducing surface defects. Therefore, developing a dedicated dual-runner structure adapted for casting large-size aluminum wheels to solve the filling defects and compatibility issues of existing solutions has become a key technological breakthrough in the industry. This application is proposed to address the aforementioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a double-sprue structure for casting large-size aluminum wheel hubs. The beneficial effect is that, when casting large-size aluminum wheel hubs, the double-sprue structure facilitates casting, thereby improving casting quality and reducing defects on the surface of the cast wheel hub.

[0004] The purpose of this utility model is achieved through the following technical solution: A double-sprue structure for casting large-size aluminum wheel hubs includes a base and a mold bottom fixedly connected to the middle of the base surface. A mold frame is fixedly connected to the mold bottom. A sprue hole is provided on the left and right sides of the bottom of the mold frame. A first sprue pipe is fixedly connected to the outside of the sprue hole on the left side. A first flow box is fixedly connected to the top of the first sprue pipe. The first flow box is fixedly connected to a support frame. The bottom of the support frame is fixedly connected to the base. An arc-shaped bar frame is fixedly connected to the right side of the base. An arc-shaped sliding frame is slidably connected to the arc-shaped bar frame. A second sprue pipe is fixedly connected to the middle of the arc-shaped sliding frame. The left end of the second sprue pipe is fixedly connected to an arc-shaped bonding plate. The arc-shaped surface of the arc-shaped bonding plate is slidably bonded to the bottom right side of the mold frame, so that the left end of the second sprue pipe can be aligned with the sprue hole on the bottom right side of the mold frame.

[0005] An upper baffle is fixedly connected to the bottom right side of the mold frame, and a side thin wall extends from the right side of the mold bottom. The upper and lower surfaces of the arc-shaped bonding plate slide in contact with the upper baffle and the adjacent side surface of the side thin wall, respectively.

[0006] A right-angle frame is fixedly connected to the upper side of the arc-shaped sliding frame, and the top right side of the right-angle frame is fixedly connected to the second flow box.

[0007] The curved bar frame has two vertically arranged curved bars with polished surfaces.

[0008] The two gating holes have the same diameter. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 This is a partial structural diagram of the base of this utility model; Figure 2 This is a partial structural schematic diagram of the mold frame of this utility model; Figure 3 This is a partial structural schematic diagram of the lifting plate of this utility model; Figure 4 This is a partial structural diagram of the upper mold frame of this utility model; Figure 5 This is a partial structural schematic diagram of the arc-shaped sliding frame of this utility model; Figure 6 This is a partial structural schematic diagram of the arc-shaped bonding plate of this utility model; Figure 7 and Figure 8 These are all schematic diagrams of the overall structure of this utility model; In the figure: base 101; mold bottom 102; thin side wall 103; triangular frame 104; arc-shaped bar frame 105; support frame 106; mold frame 201; sprue hole 202; first sprue pipe 203; first flow box 204; upper baffle 205; lifting plate 301; upper mold frame 302; arc-shaped sliding frame 401; second sprue pipe 402; second flow box 403; right angle frame 404; arc-shaped bonding plate 405; sealing block 406. Detailed Implementation

[0011] A dual-sprue structure for casting large-size aluminum wheel hubs includes a base 101 and a mold base 102 fixedly connected to the center of the surface of the base 101. A mold frame 201 is fixedly connected to the mold base 102. A sprue hole 202 is provided on each of the left and right sides of the bottom of the mold frame 201. A first sprue pipe 203 is fixedly connected to the outside of the sprue hole 202 on the left side. A first flow box 204 is fixedly connected to the top of the first sprue pipe 203. The first flow box 204 is fixedly connected to a support frame 106. The bottom of the support frame 106... The part is fixedly connected to the base 101. An arc-shaped bar frame 105 is fixedly connected to the right side of the base 101. An arc-shaped sliding frame 401 is slidably connected to the arc-shaped bar frame 105. A second sprue pipe 402 is fixedly connected to the middle of the arc-shaped sliding frame 401. The left end of the second sprue pipe 402 is fixedly connected to the arc-shaped bonding plate 405. The arc-shaped surface of the arc-shaped bonding plate 405 is slidably bonded to the bottom right side of the mold frame 201, so that the left end of the second sprue pipe 402 can be aligned with the sprue hole 202 on the bottom right side of the mold frame 201.

[0012] This section is based on Figure 1-8The embodiment described herein is as follows: When casting large-size aluminum wheel hubs, to facilitate the provision of a double-sprue structure for casting large-size aluminum wheel hubs, thereby improving casting quality and reducing surface defects, the bottom of the mold frame 201 is bolted to the mold base 102 by the operator. When pumping molten aluminum into the mold frame 201, a sprue hole 202 is machined on each of the left and right sides of the bottom of the mold frame 201. With the two sprue holes 202 located on the left and right sides of the bottom of the mold frame 201, the molten aluminum flowing in through the two sprue holes 202 flows into the overall mold cavity from both sides. Compared to flowing in from one side, this allows for more comprehensive entry of the molten metal into the mold cavity, further improving casting quality. When the molten aluminum flows into the mold cavity, it is poured into the first flow box 204 and the second flow box 403 respectively. This allows molten aluminum to flow from both sides of the mold cavity through the first gating pipe 203 and the second gating pipe 402, thus enabling the casting of wheel hubs. Furthermore, to facilitate single-gating or double-gating casting based on the operator's choice, the arc-shaped sliding frame 401 moves on the arc-shaped bar frame 105, which is centered on the mold bottom 102. This allows the bottom opening of the second gating pipe 402 to move against the outer surface of the mold frame 201 via the arc-shaped fitting plate 405. Simultaneously, the fitting plate 405 also moves against the outer surface of the mold frame 201. When the bottom opening of the second gating pipe 402 is not aligned with its corresponding gating hole 202, the arc-shaped fitting plate 405 can block the gating hole 202, thus forming a single-gating casting mode. This provides users with more working mode options and increases the versatility of their work.

[0013] An upper baffle 205 is fixedly connected to the bottom right side of the mold frame 201. A side thin wall 103 extends from the right side of the mold bottom 102. The upper and lower surfaces of the arc-shaped bonding plate 405 slide in contact with the upper baffle 205 and the adjacent side surface of the side thin wall 103, respectively. This part is based on... Figure 1-8 The embodiment described herein is as follows: when the arc-shaped bonding plate 405 moves along the outer surface of the mold frame 201, the upper and lower sides of the arc-shaped bonding plate 405 move by means of the upper baffle 205 and the side thin wall 103, which improves the airtightness and prevents the position of the arc-shaped bonding plate 405 from shifting during movement.

[0014] A right-angle bracket 404 is fixedly connected to the upper side of the arc-shaped sliding frame 401, and the top right side of the right-angle bracket 404 is fixedly connected to the second flow box 403. This part is based on... Figure 1-8The embodiment described herein is as follows: When the arc-shaped sliding frame 401 is pushed to move on the arc-shaped bar frame 105, the user can grasp the right-angle frame 404 to push the entire mechanism. The right-angle frame 404 is located between the second circulation box 403 and the arc-shaped sliding frame 401, so it is easier to push the arc-shaped sliding frame 401. Moreover, since there is no need for casting at this location, the overall weight of the device is not very heavy and can be pushed manually.

[0015] The arc-shaped bar frame 105 has two vertically arranged arc-shaped bars with polished surfaces. The two sprue holes 202 have the same diameter. The bottom opening diameters of the first sprue pipe 203 and the second sprue pipe 402 are the same as the diameters of their corresponding sprue holes 202.

[0016] This section is based on Figure 1-8 The embodiment described herein is such that the bottom opening diameter of the first gating pipe 203 and the second gating pipe 402 is the same as the diameter of their corresponding gating hole 202. This allows for direct flow casting when the bottom openings of the first gating pipe 203 and the second gating pipe 402 on both sides are aligned with their corresponding gating holes 202, thus preventing mismatches between the pipe opening diameter and the gating hole diameter.

[0017] A vertical plate is fixedly connected to the bottom front side of the upper baffle 205. When the bottom opening of the second sprue pipe 402 is aligned with its corresponding sprue hole 202, the front side of the arc-shaped bonding plate 405 comes into contact with the vertical plate. This part is based on... Figure 1-8 The embodiment described herein is as follows: when the bottom opening of the second sprue pipe 402 is aligned with its corresponding sprue hole 202, the right-angle bracket 404 is pushed so that the arc-shaped bonding plate 405 moves against the outer surface of the mold frame 201. Simultaneously, when the arc-shaped bonding plate 405 moves, its front end is attached to the front vertical plate of the upper baffle 205, which just makes the bottom opening of the second sprue pipe 402 aligned with its corresponding sprue hole 202, thereby avoiding repeated adjustment and positioning work by the staff.

[0018] A sealing block 406 is inserted into the front side of the arc-shaped bonding plate 405. The sealing block 406 can be inserted into the sprue hole 202 located on the right side, and the left side surface of the sealing block 406 coincides with the inner surface of the mold frame 201. This part is based on Figure 1-8The embodiment described herein is as follows: When the arc-shaped bonding plate 405 moves the second sprue pipe 402 to the rearward side, in order to facilitate the sealing and filling of the sprue hole 202 located on the right side, and to prevent the sprue hole 202 from having molding differences during the unidirectional sprue casting operation, the arc-shaped bonding plate 405 moves the second sprue pipe 402 to the rearward side, aligning the sealing block 406 with the sprue hole 202, and pressing the sealing block 406 into the sprue hole 202, so that the left arc-shaped surface of the sealing block 406 coincides with the inner surface of the mold frame 201, thereby facilitating the sealing and filling of the sprue hole 202 located on the right side, and preventing the sprue hole 202 from having molding differences during the unidirectional sprue casting operation.

[0019] A tripod 104 is fixedly connected to the top of the base 101. A lifting plate 301 is slidably connected to the tripod 104. An upper mold frame 302 is fixedly connected to the bottom of the lifting plate 301. The edge of the upper mold frame 302 can be fastened to the edge of the mold frame 201. The movable end of a hydraulic cylinder is fixedly connected to the upper center of the lifting plate 301. The fixed end of the hydraulic cylinder is fixedly connected to the top of the tripod 104.

[0020] This section is based on Figure 1-8 The embodiment described herein is as follows: when forming the mold cavity of the wheel hub, the hydraulic cylinder is driven so that the lifting plate 301 located on the movable end of the hydraulic cylinder moves the upper mold frame 302 toward the mold bottom 102 until the edge of the upper mold frame 302 is engaged with the edge of the mold frame 201 to form the mold cavity, and then the casting work can be carried out.

Claims

1. A double-sprue structure for casting large-size aluminum wheel hubs, comprising a base (101) and a mold base (102) fixedly connected to the middle of the surface of the base (101), wherein a mold frame (201) is fixedly connected to the mold base (102), characterized in that: The mold frame (201) has a sprue hole (202) on the left and right sides of its bottom. The sprue hole (202) on the left side is fixed and connected to a first sprue pipe (203). The top of the first sprue pipe (203) is fixed and connected to a first flow box (204). The first flow box (204) is fixedly connected to a support frame (106). The bottom of the support frame (106) is fixedly connected to a base (101). An arc-shaped bar frame (105) is fixedly connected to the right side of the base (101). An arc-shaped sliding frame (401) is slidably connected to the arc-shaped bar frame (105). A second sprue pipe (402) is fixedly connected to the middle of the arc-shaped sliding frame (401). The left end of the second sprue pipe (402) is fixedly connected to the arc-shaped bonding plate (405). The arc surface of the arc-shaped bonding plate (405) is slidably bonded to the bottom right side of the mold frame (201) so that the left end of the second sprue pipe (402) can be aligned with the sprue hole (202) on the bottom right side of the mold frame (201).

2. The structure according to claim 1, characterized in that: The bottom right side of the mold frame (201) is fixedly connected to an upper baffle (205), and the right side of the mold bottom (102) is provided with a side thin wall (103). The upper and lower surfaces of the arc-shaped bonding plate (405) slide in contact with the upper baffle (205) and the adjacent side surface of the side thin wall (103), respectively.

3. The structure according to claim 1, characterized in that: A right-angle frame (404) is fixedly connected to the upper side of the arc-shaped sliding frame (401), and the top right side of the right-angle frame (404) is fixedly connected to the second circulation box (403).

4. The structure according to claim 1, characterized in that: The arc-shaped bar frame (105) has two vertically arranged arc-shaped bars with polished surfaces.

5. The structure according to claim 1, characterized in that: The two gating holes (202) have the same diameter.

6. The structure according to claim 5, characterized in that: The bottom opening diameter of the first sprue pipe (203) and the second sprue pipe (402) is the same as the diameter of their corresponding sprue hole (202).

7. The structure according to claim 2, characterized in that: A vertical plate is fixedly connected to the bottom front side of the upper baffle (205). When the bottom opening of the second sprue pipe (402) is aligned with its corresponding sprue hole (202), the front side of the arc-shaped bonding plate (405) is in contact with the vertical plate.

8. The structure according to claim 7, characterized in that: A sealing block (406) is inserted into the front side of the arc-shaped bonding plate (405). The sealing block (406) can be inserted into the sprue hole (202) located on the right side. The left side surface of the sealing block (406) coincides with the inner surface of the mold frame (201).

9. The structure according to claim 1, characterized in that: A tripod (104) is fixedly connected to the top of the base (101), a lifting plate (301) is slidably connected to the tripod (104), and an upper mold frame (302) is fixedly connected to the bottom of the lifting plate (301). The edge of the upper mold frame (302) can be fastened to the edge of the mold frame (201).

10. The structure according to claim 9, characterized in that: The upper middle part of the lifting plate (301) is fixedly connected to the movable end of the hydraulic cylinder, and the fixed end of the hydraulic cylinder is fixedly connected to the top of the tripod (104).

Images