Aluminum alloy low-pressure casting ultrathin large oil pan sprue structure

Abstract

The utility model relates to the technical field of aluminum alloy low-pressure casting oil pans of new energy automobiles, and discloses an aluminum alloy low-pressure casting ultrathin large oil pan sprue structure which comprises a base, supporting legs are fixedly assembled on the top of the base, and a placing platform is fixedly installed on the tops of the supporting legs. An arc-shaped groove is formed in the top of the containing platform, a clamping and fixing assembly is installed on the top of the containing platform, a connecting block is arranged on the outer wall of the clamping and fixing assembly, an installing block is installed on the top of the connecting block, and a sprue mold filling assembly is arranged on the top of the installing block. An original middle pouring gate of the mold is omitted, two pouring gates are evenly arranged on the two sides of the original pouring gate for mold filling, and the heat preservation pouring gate sleeves are installed on the inner walls of the pouring gate portions of the mold, so that in the casting process of the device, molten aluminum mold filling is stable, the feeding effect is good, the problems of shrinkage porosity and air leakage are solved, and the shrinkage porosity phenomenon is effectively controlled; and the problem of casting shrinkage porosity is thoroughly solved, so that the product percent of pass is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy low-pressure casting oil pans for new energy vehicles, in particular to an aluminum alloy low-pressure casting ultra-thin large oil pan gate structure. Background Art

[0002] The gate, also known as the feed gate, is the passage from the runner to the mold cavity. It is the smallest and shortest section of the gating system. In metal casting, it refers to the entrance and passage through which molten metal enters the mold during pouring.

[0003] The existing aluminum alloy low-pressure casting ultra-thin large oil pan gate structure is prone to poor shrinkage compensation during casting filling, pressure holding, cooling and solidification due to the existing aluminum alloy low-pressure casting large thin-walled oil pan, and the use of a gate in the middle of the bottom for casting. At the same time, X-ray detection shows that the casting has different degrees of shrinkage, the pressure detection leakage rate is high, the pass rate is low, the cost increases, and one gate filling cannot reach a sequential solidification state during the solidification process, resulting in more shrinkage positions, serious leakage, low pass rate and other problems. Improvements are now being made. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides an ultra-thin large oil pan gate structure for low-pressure casting of aluminum alloy, which solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: an aluminum alloy low-pressure casting ultra-thin large oil pan gate structure, comprising a base, the top of the base is fixedly equipped with support legs, the top of the support legs is fixedly equipped with a placement platform, the top of the placement platform is provided with an arc groove, the top of the placement platform is installed with a clamping and fixing component, the outer wall of the clamping and fixing component is provided with a connecting block, the top of the connecting block is installed with a mounting block, the top of the mounting block is provided with a gate filling component, the outer wall of the clamping and fixing component is fixedly equipped with a controller, and the bottom of the connecting block is provided with a discharge hole.

[0006] As an optimal technical solution of the present invention, the clamping and fixing assembly includes a fixed main frame, the top of the fixed main frame is fixedly equipped with a motor, the power output shaft of the motor is fixedly equipped with a rotating shaft, the bottom of the rotating shaft is fixedly equipped with a blocking block, the outer wall of the rotating shaft is threadedly connected to a slider, and the outer wall of the fixed main frame is provided with a limiting groove.

[0007] As an optimal technical solution of the present invention, the motor and the controller are electrically connected, the slider is located on the inner wall of the limit groove, and the slider slides on the inner wall of the limit groove, and the outer wall of the slider away from the fixed main frame is fixedly connected to the outer wall of the connecting block.

[0008] As a preferred technical solution of the present invention, the gate filling assembly includes a mold shell, the top of the mold shell is fixedly equipped with a mold gate part, and the inner wall of the mold gate part is clamped with an insulating gate sleeve.

[0009] As an optimal technical solution of the present invention, there are two mold gate parts and two insulation gate sleeves, and the two mold gate parts and insulation gate sleeves are symmetrically distributed on the inner wall of the mold shell. The insulation gate sleeve is made of aluminum titanate ceramic, and the insulation gate sleeve is located on the inner wall of the mold gate part.

[0010] As an optimal technical solution of the present invention, there are four bases and four support legs, and the four bases and support legs are evenly distributed at the bottom of the placement platform. The connecting block is located on the inner wall of the arc-shaped groove. There are two discharge holes, and the diameters of the two discharge holes are adapted to the diameters of the mold gate. The positions of the discharge holes correspond to the positions of the mold gate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The gate structure of the ultra-thin large oil pan cast by low-pressure casting of aluminum alloy is designed to eliminate the original middle gate of the mold and evenly set two gates on both sides of the original gate for filling. In addition, an insulating gate sleeve is installed on the inner wall of the gate of the mold. This can ensure smooth filling of aluminum liquid during the casting process of the device, achieve good shrinkage compensation effect, eliminate shrinkage and air leakage problems, effectively control shrinkage, and completely solve the shrinkage problem of castings, thereby improving product qualification rate.

[0013] 2. The gate structure of the ultra-thin large oil pan cast by low-pressure casting of aluminum alloy, through the quantitative characteristics of the mold gate parts and the insulation gate sleeves and the installation positions of the mold gate parts and the insulation gate sleeves, it can be seen that the insulation gate sleeves can improve the shrinkage compensation effect, and can make the device stable and reliable during the casting process, and greatly improve the qualified rate without affecting the operation, reduce the cost, and is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the other side of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the clamping and fixing assembly of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the gate filling component of the utility model.

[0019] In the figure: 1. Base; 2. Support legs; 3. Placement platform; 4. Arc groove; 5. Clamping and fixing assembly; 501. Fixed main frame; 502. Motor; 503. Rotating shaft; 504. Stop block; 505. Slider; 506. Limiting groove; 6. Connecting block; 7. Mounting block; 8. Gate filling assembly; 801. Mold shell; 802. Mold gate part; 803. Insulation gate sleeve; 9. Controller; 10. Discharge hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1 - Figure 5 A gate structure for an ultra-thin, large-scale oil pan cast by low-pressure casting of aluminum alloy comprises a base 1, a support leg 2 being fixedly mounted on the top of the base 1, a placement platform 3 being fixedly mounted on the top of the support leg 2, an arc-shaped groove 4 being provided on the top of the placement platform 3, a clamping and fixing component 5 being installed on the top of the placement platform 3, a connecting block 6 being provided on the outer wall of the clamping and fixing component 5, a mounting block 7 being installed on the top of the connecting block 6, a gate filling component 8 being provided on the top of the mounting block 7, a controller 9 being fixedly mounted on the outer wall of the clamping and fixing component 5, and a discharge hole 10 being provided on the bottom of the connecting block 6;

[0022] By utilizing the above structure, the arrangement of the base 1 and the supporting legs 2 can ensure the stability of the work, so that the device will not easily shake during the pouring work.

[0023] In a preferred embodiment, the clamping and fixing assembly 5 includes a fixed main frame 501, a motor 502 is fixedly assembled on the top of the fixed main frame 501, a rotating shaft 503 is fixedly assembled on the power output shaft of the motor 502, a blocking block 504 is fixedly installed on the bottom of the rotating shaft 503, a slider 505 is threadedly connected to the outer wall of the rotating shaft 503, and a limiting groove 506 is provided on the outer wall of the fixed main frame 501;

[0024] In a preferred embodiment, the motor 502 and the controller 9 are electrically connected. The slider 505 is located on the inner wall of the limiting groove 506, and the slider 505 slides on the inner wall of the limiting groove 506. The outer wall of the slider 505 away from the fixed main frame 501 is fixedly connected to the outer wall of the connecting block 6;

[0025] By utilizing the above structure, the controller 9 transmits a signal, which enables the motor 502 to start working, so that the rotating shaft 503 can rotate on the inner wall of the limit groove 506, thereby driving the slider 505 to slide up and down on the inner wall of the limit groove 506, so that the connecting block 6 can move upward under its drive, thereby achieving the effect of clamping and fixing the ultra-thin large oil pan cast by low-pressure casting of aluminum alloy, so that the gate effect is better.

[0026] In a preferred embodiment, the gate filling assembly 8 includes a mold shell 801, a mold gate portion 802 is fixedly mounted on the top of the mold shell 801, and an insulating gate sleeve 803 is clamped on the inner wall of the mold gate portion 802;

[0027] In a preferred embodiment, there are two mold gate portions 802 and two insulation gate sleeves 803, and the two mold gate portions 802 and insulation gate sleeves 803 are symmetrically distributed on the inner wall of the mold shell 801. The insulation gate sleeves 803 are made of aluminum titanate ceramics and are located on the inner wall of the mold gate portion 802.

[0028] By utilizing the above structure and setting the mold gate portion 802, the device can have two filling gates, and because the inner wall of the mold gate portion 802 is installed with an insulating gate sleeve 803, the shrinkage compensation effect at the gate can be improved, which completely solves the shrinkage problem of the casting, so that the device can make the casting process stable and reliable without affecting the operation, thereby greatly improving the qualified rate and reducing the cost.

[0029] In a preferred embodiment, there are four bases 1 and four support legs 2, and the four bases 1 and four support legs 2 are evenly distributed at the bottom of the placement platform 3. The connecting block 6 is located on the inner wall of the arc-shaped groove 4. There are two discharge holes 10, and the diameters of the two discharge holes 10 are adapted to the diameter of the mold gate portion 802. The positions of the discharge holes 10 correspond to the position of the mold gate portion 802.

[0030] By utilizing the above structure, there are two discharge holes 10, and the diameters of the two discharge holes 10 are adapted to the diameter of the mold gate portion 802. It can be seen that the discharge holes 10 can more easily control the pouring speed of the inner wall of the mold gate portion 802, thereby making the pouring speed relatively fast and improving the practicality of the device.

[0031] Working principle: when using the device, first place the aluminum alloy low-pressure cast ultra-thin large oil pan on the inner wall of the mold shell 801, and send a signal through the controller 9, so that the motor 502 can start working, so that the rotating shaft 503 can rotate on the inner wall of the limit groove 506, thereby driving the slider 505 to slide up and down on the inner wall of the limit groove 506, so that the connecting block 6 can move upward under its drive, and then the aluminum alloy low-pressure cast ultra-thin large oil pan can be clamped and fixed. At this time, the aluminum alloy low-pressure cast ultra-thin large oil pan can be cast, and due to the number characteristics of the mold gate part 802 and the insulation gate sleeve 803 and the installation position of the mold gate part 802 and the insulation gate sleeve 803, it can be known that the insulation gate sleeve 803 can improve the shrinkage compensation effect, and can make the device stable and reliable during the casting process, and can make the aluminum liquid filling of the casting process of the device smooth, and thus can complete the overall work.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gate structure for an ultra-thin large oil pan cast by low-pressure casting of an aluminum alloy, comprising a base (1), characterized in that: The top of the base (1) is fixedly equipped with a support leg (2), the top of the support leg (2) is fixedly equipped with a placement platform (3), the top of the placement platform (3) is provided with an arc groove (4), the top of the placement platform (3) is provided with a clamping and fixing component (5), the outer wall of the clamping and fixing component (5) is provided with a connecting block (6), the top of the connecting block (6) is provided with a mounting block (7), the top of the mounting block (7) is provided with a gate filling component (8), the outer wall of the clamping and fixing component (5) is fixedly equipped with a controller (9), and the bottom of the connecting block (6) is provided with a discharge hole (10).

2. The ultra-thin large oil pan gate structure of aluminum alloy low-pressure casting according to claim 1 is characterized by: The clamping and fixing assembly (5) comprises a fixed main frame (501), a motor (502) is fixedly mounted on the top of the fixed main frame (501), a rotating shaft (503) is fixedly mounted on the power output shaft of the motor (502), a blocking block (504) is fixedly mounted on the bottom of the rotating shaft (503), a sliding block (505) is threadedly connected to the outer wall of the rotating shaft (503), and a limiting groove (506) is provided on the outer wall of the fixed main frame (501).

3. The ultra-thin large oil pan gate structure of aluminum alloy low-pressure casting according to claim 2 is characterized by: The motor (502) and the controller (9) are electrically connected. The slider (505) is located on the inner wall of the limiting groove (506), and the slider (505) slides on the inner wall of the limiting groove (506). The outer wall of the slider (505) on one side away from the fixed main frame (501) is fixedly connected to the outer wall of the connecting block (6).

4. The ultra-thin large oil pan gate structure of aluminum alloy low-pressure casting according to claim 1 is characterized by: The gate filling component (8) includes a mold shell (801), the top of which is fixedly equipped with a mold gate part (802), and the inner wall of the mold gate part (802) is clamped with a heat-insulating gate sleeve (803).

5. The ultra-thin large oil pan gate structure of aluminum alloy low-pressure casting according to claim 4 is characterized by: The number of the mold gate parts (802) and the insulation gate sleeves (803) is two, and the two mold gate parts (802) and the insulation gate sleeves (803) are symmetrically distributed on the inner wall of the mold shell (801); the insulation gate sleeve (803) is made of aluminum titanate ceramic, and the insulation gate sleeve (803) is located on the inner wall of the mold gate part (802).

6. The ultra-thin large oil pan gate structure of aluminum alloy low-pressure casting according to claim 1 is characterized by: The number of the base (1) and the number of the supporting legs (2) are both four, and the four bases (1) and the supporting legs (2) are evenly distributed at the bottom of the placement platform (3), the connecting block (6) is located on the inner wall of the arc-shaped groove (4), the number of the discharge holes (10) is two, and the diameters of the two discharge holes (10) are compatible with the diameter of the mold gate portion (802), and the positions of the discharge holes (10) correspond to the position of the mold gate portion (802).

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