An upper and lower material feeding mechanism for gravity casting of aluminum alloy wheels

Abstract

The present invention relates to the technical field of wheel hub casting, and specifically, to a loading and unloading mechanism for gravity casting of aluminum alloy wheel hubs. It includes a raw material transportation component and a guiding and adjusting component arranged on the raw material transportation component. In the present invention, the motor drives the screw rod to drive the sliding of the translation plate. During the sliding process, the translation plate drives the movable plate to extrude the aluminum ingot raw material through two adapter plates. Due to the extrusion of the aluminum ingot raw material, the contact plate moves along the movable groove against the elastic force of the second elastic connecting piece, and then moves radially within the movable plate, driving the aluminum ingot raw material in contact with the surface of the contact plate to rotate, adjusting the angle of the aluminum ingot raw material until the aluminum ingot raw material is clamped by two movable plates, and the narrow end of the aluminum ingot raw material faces the left side of the material conveying flat plate, that is, the position of the furnace mouth of the melting furnace, which can ensure that the aluminum ingot raw material will not be stuck at the furnace mouth, thus avoiding affecting the melting of the aluminum ingot raw material.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub casting, and specifically, to a loading and unloading mechanism for gravity casting of aluminum alloy wheel hubs. Background Art

[0002] The manufacturing process of new energy vehicles generally includes processes such as body manufacturing, power system manufacturing, battery pack manufacturing, interior manufacturing, assembly, and quality inspection. In the body manufacturing process, in order to practice the concept of low carbon and environmental protection, new energy vehicles generally use aluminum alloy wheel hubs with recyclable materials and relatively environmentally friendly production processes. Also known as aluminum alloy rims, they are cylindrical components inside the tire that support the tire and are centrally assembled on the axle. Compared with steel automotive wheel hubs, aluminum alloy wheel hubs have the advantage of low density, and the density of aluminum alloy wheel hubs is about 1 / 3 of that of steel automotive wheel hubs.

[0003] There are three manufacturing methods for aluminum alloy wheel hubs, namely gravity casting, forging, and low-pressure precision casting. Among them, in the gravity casting method, after melting aluminum ingot raw materials to form an aluminum alloy solution, the aluminum alloy solution is poured into a mold using gravity, and after forming, it is processed and polished by a lathe to complete production.

[0004] For example, CN214114054U involves a feeding mechanism for an aluminum ingot melting device, which includes a conveying device and a blanking hopper. The blanking hopper is connected to a melting furnace; the height of the conveying device is greater than that of the blanking hopper, and a transition plate is provided between the conveying device and the blanking hopper. One end of the transition plate is rotatably connected to the conveying device, and the other end of the transition plate is arranged inside the blanking hopper; a driving mechanism for driving the conveying device to move up and down is provided at the lower end of the conveying device, and the driving mechanism is installed on a base. The feeding mechanism in this patent lacks a structure for adjusting the feeding angle of the aluminum ingot when it is put into the melting furnace. As is well known, in smelting, in order to avoid inhaling too much cold air to reduce heat loss, and at the same time to avoid splashing during feeding, generally a smaller diameter of the melting furnace opening is set. When the angle between the aluminum ingot and the furnace opening is too large during feeding, the aluminum ingot will get stuck at the furnace opening, thus affecting the melting of the aluminum ingot.

[0005] In order to be able to adjust the angle of the aluminum ingot during feeding to avoid getting stuck at the furnace opening, a loading and unloading mechanism for gravity casting of aluminum alloy wheel hubs is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a loading and unloading mechanism for gravity casting of aluminum alloy wheel hubs to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention aims to provide a loading and unloading mechanism for gravity casting of aluminum alloy wheel hubs, including a raw material transportation component and a guiding and adjusting component arranged on the raw material transportation component;

[0008] The raw material transportation component includes a bottom support body fixedly arranged on one side of the melting furnace and a feeding control body arranged on the top of the bottom support body. The feeding control body is used for feeding aluminum ingot raw materials.

[0009] The guiding and adjusting component includes a clamping body and a transmission body rotatably connected to one end of the clamping body. The clamping body is located on the feeding control body. The feeding control body is in transmission connection with the transmission body. The feeding control body drives the transmission body, and then drives the clamping body to move along the surface of the feeding control body. During the movement, the transmission body drives the clamping body to clamp the aluminum ingot raw materials, and while driving the aluminum ingot raw materials to move, the angle of the aluminum ingot raw materials is adjusted by the mutual extrusion between the clamping body and the aluminum ingot raw materials.

[0010] As a further improvement of this technical solution, the feeding control body includes a feeding flat plate arranged on the top of the bottom support body. On both sides of the upper surface of the top of the feeding flat plate, there are first sliding plates. The transmission body is slidably connected to the first sliding plates. On the right side of the feeding flat plate, there is a driving body for controlling the movement of the transmission body. On the top of the right side of the feeding flat plate, there is a feeding plate for guiding the aluminum ingot raw materials to fall onto the surface of the feeding flat plate.

[0011] As a further improvement of this technical solution, the driving body includes a screw rod rotatably connected to the first sliding plate and a motor arranged on the right side of the feeding flat plate. A transmission rod is rotatably connected to the feeding plate. One end of the transmission rod is meshed with the motor, and the other end of the transmission rod is meshed with one end of the screw rod. The screw rod passes through the transmission body and is in threaded connection with the transmission body.

[0012] As a further improvement of this technical solution, the clamping body includes a cross plate located on the feeding flat plate. On the cross plate, there are paired displacement plates. The cross plate is rotatably connected with an angle adjusting structure for contacting and adjusting the angle of the aluminum ingot raw materials through the arranged displacement plates. One end of the angle adjusting structure far away from the displacement plate is rotatably connected to the transmission body.

[0013] As a further improvement of this technical solution, the angle adjusting structure includes a movable plate rotatably connected to one end of the displacement plate. The other end of the movable plate is rotatably connected to the transmission body. On the side of the movable plate close to the aluminum ingot raw materials, there is a contact plate for contacting the aluminum ingot raw materials. A plurality of movable grooves are opened on the inner wall of the movable plate. The movable plate is slidably connected with the movable grooves. On the surface of the contact plate far away from the aluminum ingot raw materials, a second elastic connecting piece is slidably connected. The second elastic connecting piece is in plug-in fit with the inner wall of the movable plate.

[0014] As a further improvement of the technical solution, the displacement plate is slidably connected to the inner wall of the cross plate. Springs are arranged on both side walls of the displacement plate. The two displacement plates are connected by the arranged springs, and the displacement plate is connected to the inner wall of the cross plate by the arranged springs.

[0015] As a further improvement of the technical solution, the transmission body includes a transfer plate rotatably connected to the other end of the movable plate and a translation plate slidably connected to the first sliding plate. The screw passes through the translation plate and is threadedly connected to the translation plate. A hollow shaft is inserted and fitted in the translation plate. Second sliding plates are arranged on both side walls of the feeding flat plate. A second insertion shaft is arranged at one end of the hollow shaft. The second insertion shaft is located in the plate groove on the second sliding plate. The plate groove is a "7"-shaped structural groove. The hollow shaft and the second sliding plate are slidably connected through the arranged second insertion shaft and plate groove. The other end of the hollow shaft is inserted and fitted with the transfer plate.

[0016] As a further improvement of the technical solution, a first insertion shaft is arranged at one end of the transfer plate close to the hollow shaft. The first insertion shaft is inserted and fitted with the hollow shaft. One end of the hollow shaft is connected to the inner wall of the hollow shaft through the arranged spring.

[0017] As a further improvement of the technical solution, the bottom support body is rotatably connected to the middle of the feeding flat plate. A first elastic connecting piece is elastically connected to the middle of the bottom support body. Limit frames in contact with the bottom surface of the feeding flat plate are arranged at both ends of the first elastic connecting piece.

[0018] As a further improvement of the technical solution, a shielding plate for shielding the top of the clamping body is arranged on the feeding plate.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the loading and unloading mechanism for gravity casting of aluminum alloy wheels, the motor drives the screw to drive the translation plate to slide. During the sliding process, the translation plate will drive the movable plate to squeeze the aluminum ingot raw material through the two transfer plates. Due to the extrusion of the aluminum ingot raw material, the contact plate moves along the movable groove against the elastic force of the second elastic connecting piece, and then moves radially in the movable plate, driving the aluminum ingot raw material in contact with the surface of the contact plate to rotate, adjusting the angle of the aluminum ingot raw material until the narrow end of the aluminum ingot raw material faces the left side of the feeding flat plate, that is, the position of the furnace mouth of the melting furnace, which can ensure that the aluminum ingot raw material will not get stuck at the furnace mouth, thus avoiding affecting the melting of the aluminum ingot raw material.

[0021] 2. In the loading and unloading mechanism for gravity casting of aluminum alloy wheels, by setting the sliding connection and spring connection, when clamping the aluminum ingot raw material, the movable plate can drive the displacement plate to slide within the cross plate, so as to adapt to aluminum ingot raw materials of different sizes and specifications. And by setting the plug-in fit and spring connection, the adapter plate can move relative to the hollow shaft, so that when clamping aluminum ingot raw materials of different sizes and specifications, the adapter plate can drive the movable plate to contact the aluminum ingot raw material, facilitating the loading and unloading operations of aluminum ingot raw materials of different sizes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present invention;

[0023] Figure 2 is the structural split diagram of the raw material transportation component of the present invention;

[0024] Figure 3 is the structural split diagram of the clinker control body of the present invention;

[0025] Figure 4 is the structural diagram of the guiding and adjusting component of the present invention;

[0026] Figure 5 is the sectional view of the clamping body of the present invention;

[0027] Figure 6 is the sectional view of the movable plate of the present invention;

[0028] Figure 7 is the schematic diagram of the structure of the transmission body of the present invention Figure 1 ;

[0029] Figure 8 is the schematic diagram of the structure of the transmission body of the present invention Figure 2 ;

[0030] Figure 9 is the schematic diagram of the motion state of the guiding and adjusting component of the present invention Figure 1 ;

[0031] Figure 10 is the schematic diagram of the rotation direction of the material conveying flat plate of the present invention;

[0032] Figure 11 is the schematic diagram of the motion state of the guiding and adjusting component of the present invention Figure 2 .

[0033] The meanings of the various reference numerals in the figure are as follows:

[0034] 1. Raw material transport assembly; 11. Bottom support body; 111. First elastic connector; 112. Position limiter; 12. Material feeding control body; 121. Material feeding plate; 122. First sliding plate; 123. Screw; 124. Motor; 125. Feeding plate; 126. Transmission rod; 127. Second sliding plate; 128. Shielding plate;

[0035] 2. Guide adjustment assembly; 21. Clamping body; 211. Horizontal plate; 212. Displacement plate; 213. Angle adjustment structure; 2131. Movable plate; 2132. Contact plate; 2133. Movable groove; 2134. Second elastic connector; 22. Transmission body; 221. Adapter plate; 222. Translation plate; 223. Hollow shaft; 224. First plug shaft; 225. Second plug shaft. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] For the convenience of transportation, storage, processing, and to affect product quality, aluminum ingots are generally set in strip shape. However, the existing loading and unloading device for melting aluminum ingots lacks a structure for adjusting the input angle of the strip-shaped aluminum ingots. As is well known, during smelting, in order to avoid inhaling too much cold air to reduce heat loss and also to avoid splashing during feeding, a relatively small furnace mouth diameter is generally set. When the angle between the strip-shaped aluminum ingot and the furnace mouth during input is too large, the strip-shaped aluminum ingot will get stuck at the furnace mouth, thus affecting the melting of the aluminum ingot.

[0040] Therefore, please refer to Figure 1 、 Figure 2 、 Figure 4 As shown, the purpose of this embodiment is to provide a loading and unloading mechanism for gravity casting of aluminum alloy wheels, including a raw material transportation component 1 and a guiding and adjusting component 2 provided on the raw material transportation component 1;

[0041] The raw material transportation component 1 includes a bottom support body 11 fixedly arranged on one side of the furnace and a feeding control body 12 arranged on the top of the bottom support body 11. The feeding control body 12 is used to input aluminum ingot raw materials;

[0042] The guiding and adjusting component 2 includes a clamping body 21 and a transmission body 22 rotatably connected to one end of the clamping body 21. The clamping body 21 is located on the feeding control body 12. The feeding control body 12 is in transmission connection with the transmission body 22. The aluminum ingot raw materials are placed on the surface of the feeding control body 12. The feeding control body 12 drives the transmission body 22 to slide along the edge of the feeding control body 12. Then, the transmission body 22 drives the clamping body 21 to move along the surface of the feeding control body 12. During the movement, the transmission body 22 drives the clamping body 21 to clamp the aluminum ingot raw materials. When clamping, by means of the mutual extrusion between the clamping body 21 and the aluminum ingot raw materials, the aluminum ingot raw materials are driven to move while the angle of the aluminum ingot raw materials is adjusted until the aluminum ingot raw materials are input into the furnace mouth.

[0043] The above structure is disclosed as follows:

[0044] As Figure 3 、 Figure 4As shown in the figure, the feeding control body 12 includes a feeding flat plate 121 arranged on the top of the bottom support body 11. On both sides of the upper surface of the top of the feeding flat plate 121, there are first sliding plates 122. The transmission body 22 is slidably connected to the first sliding plates 122. On the right side of the feeding flat plate 121, there is a driving body for controlling the movement of the transmission body 22. At the position above the driving body on the right side of the feeding flat plate 121, there is a feeding plate 125 for guiding the aluminum ingot raw material to fall onto the surface of the feeding flat plate 121. The driving body includes a screw rod 123 rotatably connected to the first sliding plate 122 and a motor 124 arranged on the right side of the feeding flat plate 121. A transmission rod 126 is rotatably connected to the feeding plate 125. One end of the transmission rod 126 is engaged with the end of the output shaft of the motor 124, and the other end of the transmission rod 126 is engaged with one end of the screw rod 123. The other end of the screw rod 123 passes through the transmission body 22 and is threadedly connected to the transmission body 22. Place the aluminum ingot raw material on the feeding plate 125, so that the aluminum ingot raw material slides downward along the inclined surface of the feeding plate 125 and falls onto the surface of the feeding flat plate 121. The motor 124 drives the screw rod 123 to rotate in the first sliding plate 122 through the transmission rod 126, and then drives the transmission body 22 threadedly connected to the screw rod 123 to slide along the first sliding plate 122. When the transmission body 22 moves, the transmission body 22 will drive the clamping body 21 to clamp the aluminum ingot raw material on the feeding flat plate 121 and adjust the angle of the aluminum ingot raw material.

[0045] As Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 shown, the structures of the above-mentioned clamping body 21 and transmission body 22 are disclosed as follows:

[0046] The clamping body 21 includes a cross plate 211 located on the feeding flat plate 121. A pair of displacement plates 212 are arranged on the cross plate 211. The cross plate 211 is rotationally connected with an angle adjusting structure 213 for contacting and adjusting the angle of the aluminum ingot raw material through the arranged displacement plates 212. One end of the angle adjusting structure 213 away from the displacement plate 212 is rotationally connected with the transmission body 22. The angle adjusting structure 213 includes a movable plate 2131 with one end rotationally connected with the displacement plate 212. The other end of the movable plate 2131 is rotationally connected with the transmission body 22. A contact plate 2132 for contacting the aluminum ingot raw material is arranged on one side of the movable plate 2131 close to the aluminum ingot raw material. A plurality of movable grooves 2133 are formed in the inner wall of the movable plate 2131. The movable grooves 2133 are "r"-shaped grooves. The second elastic connecting piece 2134 is correspondingly provided with a plurality of connecting shafts. The ends of the connecting shafts are located in the movable grooves 2133. The movable plate 2131 and the movable grooves 2133 are slidably connected through the connecting shafts. The second elastic connecting piece 2134 is slidably connected to the surface of the contact plate 2132 away from the aluminum ingot raw material. The second elastic connecting piece 2134 is inserted and matched with the inner wall of the movable plate 2131. When the movable plate 2131 is driven by the transmission body 22 to move along the surface of the feeding flat plate 121, the movable plate 2131 drives the cross plate 211 to move synchronously through the displacement plate 212. When the aluminum ingot raw material contacts the contact plate 2132, under the extrusion of the aluminum ingot raw material, the contact plate 2132 first moves along the direction perpendicular to the surface of the movable plate 2131 against the elastic force of the second elastic connecting piece 2134 along the movable groove 2133, and then moves radially in the movable plate 2131, driving the aluminum ingot raw material in contact with the surface of the contact plate 2132 to rotate, adjusting the angle of the aluminum ingot raw material until the narrow end of the aluminum ingot raw material faces the left side of the feeding flat plate 121, that is, the position of the furnace mouth of the melting furnace.

[0047] The displacement plate 212 is slidably connected with the inner wall of the cross plate 211. Springs are arranged on both side walls of the displacement plate 212. The two displacement plates 212 are connected through the arranged springs, and the displacement plate 212 is connected with the inner wall of the cross plate 211 through the arranged springs. By setting the sliding connection and spring connection, when clamping the aluminum ingot raw material, the movable plate 2131 can drive the displacement plate 212 to slide in the cross plate 211, so as to adapt to aluminum ingot raw materials of different sizes and specifications.

[0048] The transmission body 22 includes a transfer plate 221 rotatably connected to the other end of the movable plate 2131 and a translation plate 222 slidably connected to the first sliding plate 122. One end of the screw 123 away from the transmission rod 126 passes through the translation plate 222 and is threadedly connected to the translation plate 222. A hollow shaft 223 is inserted and fitted in the translation plate 222. Second sliding plates 127 are provided on both side walls of the feeding flat plate 121. One end of the hollow shaft 223 is provided with a second insertion shaft 225. The second insertion shaft 225 is located in the plate groove on the second sliding plate 127. The plate groove is a "7"-shaped structural groove. The hollow shaft 223 and the second sliding plate 127 are slidably connected through the provided second insertion shaft 225 and plate groove. The other end of the hollow shaft 223 is inserted and fitted with the transfer plate 221. One end of the transfer plate 221 close to the hollow shaft 223 is provided with a first insertion shaft 224. The first insertion shaft 224 is located inside the hollow shaft 223 and is inserted and fitted with the hollow shaft 223. One end of the hollow shaft 223 is connected to the inner wall of the hollow shaft 223 through a spring. When the screw 123 rotates, it will drive the translation plate 222 to slide along the first sliding plate 122. During the sliding process, since one end of the hollow shaft 223 slides along the plate groove of the second sliding plate 127, the hollow shaft 223 will drive the transfer plate 221 to move inward, thereby driving the movable plate 2131 rotatably connected to the transfer plate 221 to rotate to clamp the aluminum ingot raw material and adjust the angle. By setting the insertion and fitting and spring connection methods, the transfer plate 221 can move relative to the hollow shaft 223. Thus, when clamping aluminum ingot raw materials of different sizes and specifications, the transfer plate 221 can drive the movable plate 2131 to contact the aluminum ingot raw material.

[0049] Further, as Figure 2 、 Figure 3 shown, the bottom support body 11 is rotatably connected to the middle of the feeding flat plate 121. A first elastic connecting piece 111 is elastically connected to the middle of the bottom support body 11. Limit frames 112 in contact with the bottom surface of the feeding flat plate 121 are provided at both ends of the first elastic connecting piece 111. The limit frames 112 are used for limiting the feeding flat plate 121. And a shielding plate 128 for shielding the top of the clamping body 21 is provided on the feeding plate 125. The purpose of setting the shielding plate 128 is to prevent the aluminum ingot raw material from falling along the feeding plate 125 to the outside of the movable plate 2131, ensuring that the aluminum ingot raw material can fall into the position between the two movable plates 2131 on the feeding flat plate 121.

[0050] In summary, when both the clamping body 21 and the transmission body 22 are on the right side of the feeding flat plate 121, since the overall center of gravity of the feeding flat plate 121 is on the right side, as Figure 10 shown, the feeding flat plate 121 will rotate to an inclined state with the left side high and the right side low. At this time, the aluminum ingot raw material is slid down along the inclined surfaces of the feeding plate 125 and the shielding plate 128 to the surface of the feeding flat plate 121, as Figure 9 shown. Figure 9It is a top view of the whole device after removing the shielding plate 128. The aluminum ingot raw material will slide down along the surface of the feeding flat plate 121 to the right until it contacts the contact plate 2132. The moving track of the aluminum ingot raw material is as shown by the arrow a. The motor 124 drives the screw 123 to rotate, and the screw 123 will drive the translation plate 222 to slide along the first sliding plate 122 to the left side of the feeding flat plate 121. During the process of the translation plate 222 sliding to the left side of the feeding flat plate 121, it will drive the hollow shaft 223 to move along the plate groove of the second sliding plate 127, drive the two adapter plates 221 to move along the direction shown by the arrow b, and drive the movable plate 2131 to squeeze the aluminum ingot raw material. Due to the extrusion of the aluminum ingot raw material, the contact plate 2132 overcomes the elastic force of the second elastic connecting piece 2134 along the direction perpendicular to the surface of the movable plate 2131 in the movable groove 2133 first, and then moves radially in the movable plate 2131. The moving tracks of the two contact plates 2132 are as shown by the arrows c1 and c2, driving the aluminum ingot raw material in contact with the surface of the contact plate 2132 to rotate along the direction shown by the arrow d, adjusting the angle of the aluminum ingot raw material until as Figure 11 shown. At this time, the clamping body 21, the transmission body 22 and the aluminum ingot raw material move to the left side position on the feeding flat plate 121, making the feeding flat plate 121 rotate reversely to an inclined state with the left end lower and the right end higher. Under the rotation of the screw 123, the two movable plates 2131 clamp the aluminum ingot raw material, making the narrow end of the aluminum ingot raw material align with the furnace mouth of the melting furnace, and move along the arrow e direction until the aluminum ingot raw material quickly slides off along the surface of the feeding flat plate 121 and falls into the furnace mouth of the melting furnace, which can ensure that the aluminum ingot raw material will not be stuck at the furnace mouth, thus avoiding affecting the melting of the aluminum ingot raw material.

[0051] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A loading and unloading mechanism for gravity casting of aluminum alloy wheels, characterized in that: It comprises a raw material transport component (1) and a guide adjustment component (2) arranged on the raw material transport component (1); The raw material transport assembly (1) comprises a bottom support body (11) fixedly arranged on one side of the melting furnace and a material feeding control body (12) arranged on the top of the bottom support body (11), wherein the material feeding control body (12) is used to input aluminum ingot raw materials; The guide adjustment assembly (2) comprises a clamping body (21) and a transmission body (22) rotatably connected to one end of the clamping body (21); the clamping body (21) is located on the material feeding control body (12); the material feeding control body (12) is transmission-connected to the transmission body (22); the material feeding control body (12) drives the transmission body (22) and further drives the clamping body (21) to move along the surface of the material feeding control body (12); during the movement, the transmission body (22) drives the clamping body (21) to clamp the aluminum ingot raw material, and by means of mutual compression between the clamping body (21) and the aluminum ingot raw material, drives the aluminum ingot raw material to move while adjusting the angle of the aluminum ingot raw material; The material feeding control body (12) comprises a material feeding plate (121) arranged on the top of the bottom support body (11), first sliding plates (122) are arranged at the edge positions of both sides of the top upper surface of the material feeding plate (121), the transmission body (22) is slidably connected to the first sliding plates (122), a driving body for controlling the movement of the transmission body (22) is arranged on the right side of the material feeding plate (121), and a feeding plate (125) for guiding the aluminum ingot raw material to fall onto the surface of the material feeding plate (121) is arranged on the top of the right side of the material feeding plate (121); The clamping body (21) comprises a transverse plate (211) located on the feeding plate (121), a pair of displacement plates (212) are arranged on the transverse plate (211), the transverse plate (211) is rotatably connected to an angle adjustment structure (213) for contacting and adjusting the angle of the aluminum ingot raw material through the arranged displacement plate (212), and the angle adjustment structure (213) is rotatably connected to the transmission body (22) at one end away from the displacement plate (212); The angle adjustment structure (213) comprises a movable plate (2131) having one end rotatably connected to the displacement plate (212); the other end of the movable plate (2131) is rotatably connected to the transmission body (22); a contact plate (2132) for contacting the aluminum ingot raw material is provided on a side of the movable plate (2131) close to the aluminum ingot raw material; a plurality of movable grooves (2133) are provided on an inner wall of the movable plate (2131); the movable plate (2131) is slidably connected to the movable grooves (2133); a second elastic connecting member (2134) is slidably connected to a surface of the contact plate (2132) away from the aluminum ingot raw material; the second elastic connecting member (2134) is plug-fitted to the inner wall of the movable plate (2131).

2. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 1 is characterized in that: The driving body comprises a screw rod (123) rotatably connected to the first sliding plate (122) and a motor (124) arranged on the right side of the feeding plate (121); a transmission rod (126) is rotatably connected to the feeding plate (125); one end of the transmission rod (126) is meshed with the motor (124); the other end of the transmission rod (126) is meshed with one end of the screw rod (123); the screw rod (123) passes through the transmission body (22) and is threadedly connected to the transmission body (22).

3. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 1 is characterized in that: The displacement plate (212) is slidably connected to the inner wall of the transverse plate (211), and springs are provided on both side walls of the displacement plate (212). The two displacement plates (212) are connected via the provided springs, and the displacement plates (212) are connected to the inner wall of the transverse plate (211) via the provided springs.

4. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 2, characterized in that: The transmission body (22) comprises an adapter plate (221) rotatably connected to the other end of the movable plate (2131) and a translation plate (222) slidably connected to the first sliding plate (122); the screw rod (123) passes through the translation plate (222) and is threadedly connected to the translation plate (222); a hollow shaft (223) is plugged into the translation plate (222); second sliding plates (127) are provided on the side walls of both sides of the feeding plate (121); a second plugging shaft (225) is provided at one end of the hollow shaft (223); the second plugging shaft (225) is located in a plate groove on the second sliding plate (127); the plate groove is a "7"-shaped structural groove; the hollow shaft (223) and the second sliding plate (127) are slidably connected through the second plugging shaft (225) and the plate groove; the other end of the hollow shaft (223) is plugged into the adapter plate (221).

5. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 4, characterized in that: A first plug shaft (224) is provided at one end of the adapter plate (221) close to the hollow shaft (223); the first plug shaft (224) is plugged into and matched with the hollow shaft (223); and one end of the hollow shaft (223) is connected to the inner wall of the hollow shaft (223) via a spring.

6. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 1, characterized in that: The bottom support body (11) is rotatably connected to the middle of the feed plate (121); a first elastic connecting member (111) is elastically connected to the middle of the bottom support body (11); and limiting frames (112) in contact with the bottom surface of the feed plate (121) are provided at both ends of the first elastic connecting member (111).

7. The loading and unloading mechanism for gravity casting of aluminum alloy wheel hub according to claim 1, characterized in that: The feeding plate (125) is provided with a shielding plate (128) for shielding the top of the clamping body (21).

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