Low-pressure casting mold for aluminum alloy hub

Abstract

The utility model provides a low-pressure casting mold for an aluminum alloy hub, and belongs to the technical field of hub casting. Comprising a mounting base, a support and a lower die are arranged on the mounting base, a mounting frame is vertically and slidably arranged on the support above the lower die, an upper die is arranged on the mounting frame, a plurality of side dies are arranged in the circumferential direction of the upper die, the upper die, the lower die and the side dies jointly define a cavity, and the side dies are slidably arranged on the mounting frame in the radial direction of the cavity. A liquid inlet is formed in the middle of the lower die in a penetrating mode, a pouring device used for injecting liquid aluminum alloy into the liquid inlet is arranged at the bottom of the mounting base, cooling mechanisms are arranged in the upper die, the lower die and the side dies, a first driving piece used for driving the mounting frame to move is arranged on the support, and a plurality of second driving pieces used for driving the side dies to move are arranged on the mounting frame. The method has the effects of shortening the solidification time of the aluminum alloy hub and improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wheel hub casting, especially relates to a low-pressure casting mould of aluminum alloy wheel hub. BACKGROUND

[0002] In automobile parts manufacturing production, low-pressure casting technology is often used to produce aluminum alloy wheel hub. The low-pressure casting mould includes an upper mould, a lower mould and a plurality of side moulds. The upper mould, the lower mould and the plurality of side moulds can form a wheel hub casting cavity. Liquid aluminum alloy is injected into the cavity, and the aluminum alloy wheel hub can be obtained after solidification.

[0003] The patent with publication number CN214977675U discloses a wheel hub low-pressure casting mould, which comprises a support table, a support column is welded on the upper part of the support table, a support plate is welded on the top end of the support column, a first electric cylinder is fixedly installed on the middle upper part of the support plate, a pressing plate is fixedly connected to the output end of the first electric cylinder, a bearing column and a threaded column are fixedly arranged at the bottom end of the pressing plate, a threaded connecting pipe is fixedly arranged on the upper part of the pressing plate, a mould mechanism is movably installed on the support table, the mould mechanism comprises a first mould, a second mould, a third mould and a fourth mould, a second electric cylinder is fixedly connected to one side of the first mould, a first electric cylinder is fixedly connected to one side of the second mould, a fourth electric cylinder is fixedly connected to one side of the third mould, a fifth electric cylinder is fixedly connected to one side of the fourth mould, a fixed mould column is fixedly arranged on the upper part of the support table, the fixed mould column is fixedly arranged between the first mould, the second mould, the third mould and the fourth mould, a spoke mould is fixedly arranged on the upper part of the fixed mould column, and rim grooves are arranged at the upper and lower ends of the first mould, the second mould, the third mould and the fourth mould.

[0004] The wheel hub low-pressure casting mould needs to be taken out after the aluminum alloy wheel hub is naturally cooled and solidified, which has the problems of long solidification time and low production efficiency. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a low-pressure casting mould of aluminum alloy wheel hub.

[0006] In order to achieve the above-mentioned purposes, the utility model adopts the following technical solutions:

[0007] The utility model provides a low pressure casting mould of aluminum alloy wheel hub, including mounting seat, be equipped with support and lower mould on mounting seat, be equipped with mounting frame on the support and vertically slide in lower mould top, be equipped with upper mould on the mounting frame, and be equipped with a plurality of side moulds along the circumference of upper mould, and the upper mould, lower mould and a plurality of side moulds jointly enclose and form the cavity, a plurality of side moulds are radially arranged on the mounting frame, the lower mould is centrally provided with a liquid inlet, the bottom of the mounting seat is provided with a pouring device for injecting liquid aluminum alloy into the liquid inlet, the upper mould, the lower mould and a plurality of side moulds are provided with cooling mechanisms, the support is provided with a first driving element for moving the mounting frame, and the mounting frame is provided with a plurality of second driving elements for moving a plurality of side moulds.

[0008] Further, the cooling mechanism includes a first cooling channel arranged inside the upper mould, a second cooling channel arranged inside the lower mould, and a plurality of third cooling channels arranged one by one inside the side moulds, both ends of the plurality of third cooling channels are in communication with the first cooling channel and the second cooling channel respectively, the outer wall of the upper mould is provided with a water inlet pipe for communication with the first cooling channel, and the one end of the water inlet pipe is externally connected with a cooling water supply device, and the outer wall of the lower mould is provided with a water outlet pipe for communication with the second cooling channel.

[0009] Further, the side wall of the plurality of side moulds is provided with a first connector for plugging into the first cooling channel at the inlet end of the third cooling channel, and the bottom of the plurality of side moulds is provided with a second connector for plugging into the second cooling channel at the outlet end of the third cooling channel.

[0010] Further, the outer wall of the first connector and the second connector is provided with a conical guide surface.

[0011] Further, the mounting seat is hinged with a load carrying frame for loading in / out between the side mould and the lower mould through a parallelogram hinge, and the rotating shaft of the load carrying frame is horizontal.

[0012] Further, the load carrying frame is provided with a load carrying plate for contacting the bottom of the aluminum alloy wheel hub in a direction perpendicular to the bottom wall of the load carrying frame, and the load carrying plate is connected with a plurality of damping spring shock absorbers between the load carrying plate and the inner bottom wall of the load carrying frame.

[0013] The utility model has the advantages that: after the upper mould, the lower mould and the plurality of side moulds are closed, liquid aluminum alloy can be injected into the cavity through the pouring device, and the cooling effect of the cooling mechanism can improve the solidification speed of the liquid aluminum alloy; after the aluminum alloy wheel hub is formed, the mounting frame can be vertically moved upward through the first driving element, and the aluminum alloy wheel hub can be moved upward together with the upper mould and the plurality of side moulds; finally, the side moulds can be moved to expose the aluminum alloy wheel hub through the second driving element, and at the same time, the workers only need to use the material receiving device to receive the aluminum alloy wheel hub, which can shorten the solidification time of the aluminum alloy wheel hub and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a low-pressure casting mold for an aluminum alloy wheel hub according to an embodiment of the present application.

[0015] Figure 2 It is a schematic diagram of the material taking state of a low-pressure casting mold for an aluminum alloy wheel hub according to an embodiment of the present application.

[0016] Figure 3 It is a schematic diagram of the sectional structure of the upper mold, the lower mold and the side mold of a low-pressure casting mold for an aluminum alloy wheel hub according to an embodiment of the present application.

[0017] Figure 4 It is an exploded schematic diagram of the upper mold, the lower mold and the side mold of a low-pressure casting mold for an aluminum alloy wheel hub according to an embodiment of the present application.

[0018] Figure 5 It is a schematic diagram of the internal structure of a material carrying frame of a low-pressure casting mold for an aluminum alloy wheel hub according to an embodiment of the present application.

[0019] Wherein, 1, mounting seat; 11, support; 12, mounting frame; 13, parallelogram hinge; 2, lower mold; 21, second cooling channel; 3, upper mold; 31, first cooling channel; 4, side mold; 41, third cooling channel; 42, first joint; 43, second joint; 5, cavity; 6, first driving member; 7, second driving member; 8, material carrying frame; 81, material carrying plate; 9, damping spring shock absorber; 10, pouring device. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0021] The embodiment of the present application discloses a low-pressure casting mold for an aluminum alloy wheel hub, referring to Figure 1 , Figure 2 and Figure 3 , comprising a mounting seat 1, the mounting seat 1 is provided with a support 11 and a lower mold 2, the support 11 is vertically slidably provided with a mounting frame 12 above the lower mold 2, the mounting frame 12 is provided with an upper mold 3, and a plurality of side molds 4 are circumferentially arranged along the upper mold 3. The upper mold 3, the lower mold 2 and the plurality of side molds 4 jointly enclose a cavity 5, and the plurality of side molds 4 are radially slidably arranged on the mounting frame 12. A liquid inlet is provided in the middle of the lower mold 2, and a pouring device 10 for injecting liquid aluminum alloy into the liquid inlet is arranged at the bottom of the mounting seat 1. Cooling mechanisms are arranged in the upper mold 3, the lower mold 2 and the plurality of side molds 4. The support 11 is provided with a first driving member 6 for driving the movement of the mounting frame 12, and the mounting frame 12 is provided with a plurality of second driving members 7 for driving the movement of the plurality of side molds 4, respectively.

[0022] In the embodiment of the present application, after the upper die 3, the lower die 2 and the plurality of side dies 4 are closed, the liquid aluminum alloy can be injected into the cavity 5 through the pouring device 10, and the cooling mechanism can improve the solidification speed of the liquid aluminum alloy under the cooling effect. After the aluminum alloy hub is formed, the first driving member 6 can drive the mounting frame 12 to vertically move upward, and the aluminum alloy hub can move upward together with the upper die 3 and the plurality of side dies 4. Finally, the second driving member 7 drives the side dies 4 to move and expose the aluminum alloy hub, and at the same time, the worker only needs to use the material receiving device to receive the aluminum alloy hub. The effect of shortening the solidification time of the aluminum alloy hub and improving the production efficiency is achieved.

[0023] Specifically, the cooling mechanism includes a first cooling flow channel 31 arranged in the upper die 3, a second cooling flow channel 21 arranged in the lower die 2, and a plurality of third cooling flow channels 41 each arranged in the side die 4. The two ends of the plurality of third cooling flow channels 41 are respectively communicated with the first cooling flow channel 31 and the second cooling flow channel 21. The outer wall of the upper die 3 is provided with a water inlet pipe for communicating with the first cooling flow channel 31, and one end of the water inlet pipe is externally connected with a cooling water supply device (not shown in the figure). The outer wall of the lower die 2 is provided with a water outlet pipe for communicating with the second cooling flow channel 21.

[0024] In the embodiment of the present application, the cooling water supply device can inject cooling water into the first cooling flow channel 31 through the water inlet pipe. The cooling water flows into the second cooling flow channel 21 after passing through the plurality of third cooling flow channels 41, and is then discharged through the water outlet pipe. After the aluminum alloy hub is solidified, the supply of cooling water needs to be stopped in order to discharge the cooling water in the first cooling flow channel 31, the second cooling flow channel 21 and the plurality of third cooling flow channels 41, and then the mold can be opened to take out the aluminum alloy hub.

[0025] Referring to Figure 4 The side wall of each of the plurality of side dies 4 is provided with a first connector 42 for being inserted into the first cooling flow channel 31 at the inlet end of the third cooling flow channel 41, and the bottom of each of the plurality of side dies 4 is integrally provided with a second connector 43 for being inserted into the second cooling flow channel 21 at the outlet end of the third cooling flow channel 41.

[0026] In the embodiment of the present application, the plurality of first connectors 42 and the plurality of second connectors 43 can improve the connection stability when the upper die 3, the lower die 2 and the plurality of side dies 4 are closed.

[0027] In order to facilitate the insertion of the first connector 42 into the first cooling flow channel 31 and the insertion of the second connector 43 into the second cooling flow channel 21, the outer wall of the first connector 42 and the outer wall of the second connector 43 are each provided with a conical guide surface.

[0028] Further, the mounting seat 1 is hingedly connected with a material carrying frame 8 for entering / leaving the side die 4 and the lower die 2 through a parallelogram hinge 13, and the rotation shaft of the material carrying frame 8 is horizontal.

[0029] In the embodiment of the present application, after the aluminum alloy wheel hub is vertically moved upward with the mounting frame 12, the staff can rotate the parallelogram hinge 13 and move the loading frame 8 into the side mold 4 and the lower mold 2; then the aluminum alloy wheel hub can be made to fall into the loading frame 8 by moving the side mold 4; finally, the loading frame 8 and the aluminum alloy wheel hub can be moved out of the side mold 4 and the lower mold 2 by rotating the parallelogram hinge 13 again.

[0030] Referring to Figure 5 , the loading plate 81 for contacting the bottom of the aluminum alloy wheel hub is slidably arranged in the loading frame 8 in a direction perpendicular to the bottom wall of the loading frame 8, and a plurality of damping spring shock absorbers 9 are connected between the loading plate 81 and the inner bottom wall of the loading frame 8.

[0031] In the embodiment of the present application, when the staff rotates the parallelogram hinge 13 and moves the loading frame 8 into the side mold 4 and the lower mold 2, the loading plate 81 can contact the bottom of the aluminum alloy wheel hub, and after the side mold 4 is moved away, the aluminum alloy wheel hub can press the loading plate 81 and gradually compress the damping spring shock absorber 9 under its own gravity, so that it can slowly enter the loading frame 8.

[0032] The implementation principle of the low-pressure casting mold for the aluminum alloy wheel hub in the embodiment of the present application is that after the upper mold 3, the lower mold 2 and the plurality of side molds 4 are closed, the liquid aluminum alloy can be injected into the cavity 5 through the pouring device 10, and the solidification speed of the liquid aluminum alloy can be increased under the cooling effect of the cooling mechanism. After the aluminum alloy wheel hub is formed, the mounting frame 12 can be vertically moved upward by the first driving member 6, and the aluminum alloy wheel hub can be moved upward together with the upper mold 3 and the plurality of side molds 4. Finally, the side mold 4 is moved and the aluminum alloy wheel hub is exposed by the second driving member 7, and at the same time, the staff only needs to use the receiving device to receive the aluminum alloy wheel hub. The effect of shortening the solidification time of the aluminum alloy wheel hub and improving the production efficiency is achieved.

[0033] Those skilled in the art will appreciate that although the preferred embodiments of the present application have been described, once the basic creative concept is known, those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and changes.

Claims

1. A low pressure casting mold for an aluminum alloy wheel, characterized by: The utility model provides a kind of aluminum alloy wheel hub casting device, including mounting seat (1), the mounting seat (1) is equipped with support (11) and lower mould (2), the support (11) is vertically slidably provided with mounting frame (12) above lower mould (2), the mounting frame (12) is equipped with upper mould (3), and a plurality of side moulds (4) are arranged along the circumference of upper mould (3), the upper mould (3), lower mould (2) and a plurality of side moulds (4) are jointly enclosed to form cavity (5), a plurality of side moulds (4) are slidably arranged on mounting frame (12) along the radial direction of cavity (5), the middle part of lower mould (2) is provided with liquid inlet, the bottom of mounting seat (1) is equipped with pouring device (10) for injecting liquid aluminum alloy into liquid inlet, cooling mechanism is arranged in the upper mould (3), lower mould (2) and a plurality of side moulds (4), the support (11) is equipped with first driving element (6) for driving mounting frame (12) to move, and the mounting frame (12) is equipped with a plurality of second driving elements (7) for driving a plurality of side moulds (4) to move respectively.

2. The low pressure casting mold for an aluminum alloy wheel hub according to claim 1, characterized by: The cooling mechanism includes a first cooling channel (31) arranged inside the upper mould (3), a second cooling channel (21) arranged inside the lower mould (2), and a plurality of third cooling channels (41) arranged one by one inside the side moulds (4). Both ends of the plurality of third cooling channels (41) are respectively communicated with the first cooling channel (31) and the second cooling channel (21). The outer wall of the upper mould (3) is provided with a water inlet pipe for communication with the first cooling channel (31), and the water inlet pipe is externally connected with a cooling water supply device at one end. The outer wall of the lower mould (2) is provided with a water outlet pipe for communication with the second cooling channel (21).

3. A low pressure casting mold for an aluminum alloy wheel according to claim 2, characterized in that: The side wall of the plurality of side moulds (4) is provided with a first connector (42) for plugging into the first cooling channel (31) at the inlet end of the third cooling channel (41). The bottom of the plurality of side moulds (4) is provided with a second connector (43) for plugging into the second cooling channel (21) at the outlet end of the third cooling channel (41).

4. The low pressure casting mold for an aluminum alloy wheel hub according to claim 3, characterized by: The outer wall of the first connector (42) and the second connector (43) is provided with a conical guide surface.

5. The low pressure casting mold for an aluminum alloy wheel hub according to claim 1, characterized by: The mounting seat (1) is hingedly connected with a load carrying frame (8) for loading in / out between the side mould (4) and the lower mould (2) through a parallelogram hinge (13). The rotation axis of the load carrying frame (8) is horizontal.

6. A low pressure casting mold for an aluminum alloy wheel according to claim 5, characterized in that: The load carrying frame (8) is slidably provided with a load carrying plate (81) for contacting the bottom of the aluminum alloy wheel hub in a direction perpendicular to the bottom wall of the load carrying frame (8). The load carrying plate (81) is connected with a plurality of damping spring shock absorbers (9) between the load carrying plate (81) and the inner bottom wall of the load carrying frame (8).

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