Hub compression molding device

Abstract

The invention belongs to the technical field of automobile parts, discloses a hub compression molding device, and aims to solve the problems that existing hub compression molding equipment is provided with an upper mold and a lower mold and is fixed through a fixing device, the middle of the periphery of an existing hub is of an inward-concave structure, and during demolding, the upper portion and the lower portion of the periphery of the hub protrude, so that the hub cannot be deformed. According to the technical scheme, an installation frame is included, an upper mold and a lower mold are arranged in the installation frame, the bottom face of the upper mold is matched with the top face of the lower mold, two movable molds are arranged between the upper mold and the lower mold, and the movable molds are matched with the upper mold and the lower mold; according to the hub demolding device, a concave structure in the middle of the periphery of a hub is utilized, demolding work of a formed hub can be achieved by controlling movement of the movable mold, in addition, whether feeding is conducted or not can be controlled through the feeding control device, and use and control are convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive parts, and particularly relates to a hub pressing and forming device. Background Art

[0002] The processing methods of automobile wheels are divided into two categories: casting and forging. Among them, the wheels manufactured by the forging method are manufactured by mechanical pressing and have high strength. However, the forging process is cumbersome and complex. The casting method is to add molten liquid metal into the cavity, and wheels with more complex structural forms can be manufactured. The process is simple, but the strength of the finished product is low. Considering the above two situations, at present, squeeze casting, that is, the method of liquid die forging, is more popular for processing. It is a casting method in which liquid metal is formed and solidified under mechanical pressure. The liquid metal fills the mold slowly and smoothly from bottom to top and solidifies under high pressure; In the prior art, a Chinese patent with the publication number CN115229158B discloses a hub pressing and forming device for electric vehicles. This prior art is provided with an upper mold and a lower mold and is fixed by a fixing device. The middle part of the outer circumference of the existing wheel hub is an inner concave structure. When demolding, it is not convenient to carry out the demolding work because the upper and lower parts of the outer circumference of the wheel hub protrude. Summary of the Invention

[0003] In order to solve the above deficiencies in the prior art, the purpose of the present invention is to provide a hub pressing and forming device. This hub pressing and forming device utilizes the concave structure in the middle of the outer circumference of the hub, and by controlling the movement of the moving mold, the demolding of the formed hub can be realized. In addition, the feeding control device can control whether to feed materials, and the use is convenient.

[0004] The technical solution adopted by the present hub pressing and forming device to solve its technical problems is as follows: A hub pressing and forming device is provided, including a mounting frame. An upper mold and a lower mold are arranged inside the mounting frame. The bottom surface of the upper mold cooperates with the top surface of the lower mold. Two moving molds are arranged between the upper mold and the lower mold. The moving molds cooperate with the upper mold and the lower mold. A moving device for driving the upper mold and the moving molds to move is arranged on the mounting frame. An air hole is opened on the top surface of the upper mold. A heat preservation crucible is arranged at the bottom inside the mounting frame. The bottom surface of the lower mold is fixedly connected to the top of the heat preservation crucible. A feeding pipe is arranged inside the heat preservation crucible. The feeding pipe penetrates through the lower mold and is fixedly connected. A feeding port is arranged on one side of the heat preservation crucible. A one-way feeding structure is arranged at the feeding port. A feeding control device is arranged inside the heat preservation crucible. A connecting pipe communicated with it is fixedly installed on the other side of the heat preservation crucible. The connecting pipe is connected to a pneumatic control system.

[0005] Further, the mobile device includes two moving plates, which are respectively and fixedly installed on both sides of the upper die. A screw rod and a guide rod are arranged in the mounting frame. The upper end of the screw rod is rotatably connected to the top surface of the inner wall of the mounting frame. A driving device for driving the screw rod to rotate is arranged on the mounting frame. The upper end of the guide rod is fixedly connected to the top surface of the inner wall of the mounting frame. The screw rod penetrates through one of the moving plates and is in threaded fit, and the guide rod penetrates through the other moving plate and is in clearance fit. A first hydraulic cylinder is fixedly installed on the moving plate. The movable end of the first hydraulic cylinder is fixedly installed with a second hydraulic cylinder. The movable ends of the second hydraulic cylinders are respectively fixedly connected to the corresponding moving dies.

[0006] Further, the driving device is a motor. The motor is fixedly installed on the top surface of the mounting frame. The output shaft of the motor penetrates through the mounting frame and is rotatably connected. The output shaft of the motor is fixedly connected to the upper end of the screw rod.

[0007] Further, the one-way feeding structure is a baffle. The baffle is arranged in the heat-insulating crucible and is located at the feeding port. The upper part of the baffle is hinged to the inner wall of the heat-insulating crucible. One side of the baffle is in contact and fit with the inner wall of the heat-insulating crucible.

[0008] Further, a feeding hopper is fixedly installed at the feeding port.

[0009] Further, the feeding control device includes an adjusting pipe. The adjusting pipe is located in the upper part of the heat-insulating crucible. One end of the adjusting pipe is fixedly connected to the feeding pipe and is interconnected. The other end of the adjusting pipe penetrates through the heat-insulating crucible and is fixedly connected. Two movable blocks are arranged in the adjusting pipe. The movable blocks are slidably matched with the inner wall of the adjusting pipe. The movable blocks are fixedly connected by a connecting rod. The other outer wall of the heat-insulating crucible is installed with a third hydraulic cylinder through a connecting frame. The movable end of the third hydraulic cylinder is fixedly connected to the corresponding movable block. A through hole located between the two movable blocks is arranged on the adjusting pipe.

[0010] Further, frustum structures are respectively arranged on both sides of the movable block. Four clamping rings are fixedly installed in the adjusting pipe. The four clamping rings are respectively arranged in pairs on both sides of the corresponding movable block. The inner walls of the clamping rings are respectively clamped with both sides of the corresponding movable block.

[0011] Further, a robotic arm is arranged at the rear side of the mounting frame. A connecting plate is arranged on the robotic arm.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. A hub pressing and forming device according to an embodiment of the present invention. Through a moving device, the upper die, the lower die and two moving dies are engaged and cooperate with each other. The molten metal is fed into the heat preservation crucible along the feeding port by an existing ladling device. The airtightness of the heat preservation crucible is ensured by a one-way feeding structure. Gas is filled into the heat preservation crucible by an existing pneumatic control system, so that the air pressure in the heat preservation crucible rises. Under the action of pressure, the molten metal can enter the hub cavity along the feeding pipe, thus filling the hub cavity. After the filling is completed, the feeding control device can control the stop of feeding. After the molten metal in the hub cavity is cooled and solidified, the moving device can control the upward movement of the upper die and the two moving dies, so that the formed hub is separated from the lower die. By the moving device, the two moving dies are separated from the upper die, and the formed hub can be separated from the upper die. Finally, the moving device controls the separation of the two moving dies, and then the formed hub can be separated from the two moving dies, thus completing the pressing and forming of the hub. Compared with the prior art, the present invention utilizes the concave structure in the middle of the outer periphery of the hub, and by controlling the movement of the moving die, the demoulding of the formed hub can be realized. In addition, the feeding control device can control whether to feed, and the use is convenient.

[0013] 2. A hub pressing and forming device according to an embodiment of the present invention. When the driving device is turned on, the driving device can drive the screw to rotate. Affected by the guiding and limiting of the guiding rod, the rotation of the screw can drive the upper die to move up and down through the moving plate. The up and down movement of the moving plate can drive the two moving dies to move up and down through the first hydraulic cylinder and the second hydraulic cylinder. The first hydraulic cylinder can be used to adjust the separation of the moving die from the upper die, and the second hydraulic cylinder can separate the two moving dies.

[0014] 3. A hub pressing and forming device according to an embodiment of the present invention. When the motor is turned on, the rotation of the output shaft of the motor can drive the screw to rotate. By controlling the rotation of the output shaft of the motor, the moving direction of the moving plate can be controlled. 4. A hub pressing and forming device according to an embodiment of the present invention. When the molten metal enters the heat preservation crucible along the feeding port, it can push the baffle to rotate, and then the molten metal flows into the bottom of the heat preservation crucible. When the heat preservation crucible is pressurized by the pneumatic control system, the baffle can block the feeding port to prevent the air in the heat preservation crucible from leaking. The structure of this one-way feeding structure is simple and easy to use.

[0015] 5. A hub pressing and forming device according to an embodiment of the present invention. The feeding hopper can guide the molten metal, which is convenient for the molten metal to enter the heat preservation crucible along the feeding port.

[0016] 6. A wheel hub pressing and forming device according to an example of the present invention can control one side of two movable blocks by controlling the extension and contraction of the third hydraulic cylinder. When the through hole is located between the two movable blocks, the movable block on the left can prevent the insulation crucible from communicating with the outside and can ensure the pressure in the insulation crucible. The movable block on the right can separate the through hole from the feeding tube. When it is necessary to stop feeding, the third hydraulic cylinder can be controlled to contract so that the movable block on the right can be moved to the left side of the through hole, so that the through hole and the feeding tube can be communicated with each other, thereby allowing the molten metal in the feeding tube to flow down under the action of gravity.

[0017] 7. A wheel hub pressing and forming device in an example of the present invention can ensure the sealing of the feeding control device through the truncated cone-shaped snap-fit ​​structure. In addition, the movable block will produce wear during the movement of the adjustment tube, and the wear will not affect the sealing of the truncated cone-shaped snap-fit ​​structure, which can provide double assurance.

[0018] 8. A wheel hub pressing and forming device according to an example of the present invention can control the movement of a connecting plate through a mechanical arm, and when the forming wheel hub is separated from the two movable molds, the forming wheel hub can be connected and driven to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the feeding control device.

[0020] In the figure: 1. mounting frame; 2. upper mold; 3. lower mold; 4. movable mold; 5. insulation crucible; 6. feeding pipe; 7. movable plate; 8. screw; 9. guide rod; 10. first hydraulic cylinder; 11. second hydraulic cylinder; 12. motor; 13. baffle; 14. feed hopper; 15. adjusting tube; 16. movable block; 17. third hydraulic cylinder; 18. retaining ring. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figure 1 and2 As shown in the figure, a hub pressing and forming device includes a mounting frame 1. Inside the mounting frame 1, there is an upper mold 2 and a lower mold 3. The bottom surface of the upper mold 2 cooperates with the top surface of the lower mold 3. Between the upper mold 2 and the lower mold 3, there are two moving molds 4. The opposite surfaces of the moving molds 4 are semi-circular structures. The moving molds 4 cooperate with the upper mold 2 and the lower mold 3. After the upper mold 2, the lower mold 3 and the two moving molds 4 cooperate, a hub cavity is formed. Between the contact surfaces of the upper mold 2 and the lower mold 3 with the moving molds 4 respectively, there are alignment grooves and alignment block structures for alignment. On the mounting frame 1, there is a moving device that drives the upper mold 2 and the moving molds 4 to move. An air hole is opened on the top surface of the upper mold 2, and the air hole communicates with the top of the hub cavity. At the bottom inside the mounting frame 1, there is a heat-preserving crucible 5. The bottom surface of the lower mold 3 is fixedly connected to the top of the heat-preserving crucible 5. Inside the heat-preserving crucible 5, there is a feeding pipe 6. The feeding pipe 6 passes through the lower mold 3 and is fixedly connected. The feeding pipe 6 communicates with the hub cavity. On one side of the heat-preserving crucible 5, there is a feeding port, and a one-way feeding structure is arranged at the feeding port. Inside the heat-preserving crucible 5, there is a feeding control device. On the other side of the heat-preserving crucible 5, a connecting pipe that communicates with it is fixedly installed. The connecting pipe is connected to a pneumatic control system. The pneumatic control system is a prior art and is used in multiple fields, and its specific structure is not described in detail in this application. By the moving device, the upper mold 2, the lower mold 3 and the two moving molds 4 are engaged and cooperate with each other. The molten metal is introduced into the heat-preserving crucible 5 along the feeding port through an existing ladling device. The one-way feeding structure ensures the sealing of the heat-preserving crucible 5. Gas is filled into the heat-preserving crucible 5 through the existing pneumatic control system, so that the air pressure inside the heat-preserving crucible 5 rises. Under the action of the pressure, the molten metal can enter the hub cavity along the feeding pipe 6, thus filling the hub cavity. After the filling is completed, the feeding control device can control the stop of feeding. After the molten metal in the hub cavity cools and solidifies, the moving device can control the upward movement of the upper mold 2 and the two moving molds 4, so that the formed hub is separated from the lower mold 3. By the moving device, the two moving molds 4 are separated from the upper mold 2, and the formed hub can be separated from the upper mold 2. Finally, the moving device controls the separation of the two moving molds 4, and thus the formed hub can be separated from the two moving molds 4, thereby completing the pressing and forming of the hub. Compared with the prior art, the present invention utilizes the concave structure in the middle of the outer periphery of the hub, and by controlling the movement of the moving mold 4, the demolding work of the formed hub can be realized. In addition, the feeding control device can control whether to feed, and the use control is convenient.

[0024] As Figure 1As shown, further preferably, the mobile device includes two moving plates 7, which are respectively fixedly installed on both sides of the upper mold 2. A screw rod 8 and a guide rod 9 are arranged in the mounting frame 1. The upper end of the screw rod 8 is rotatably connected to the top surface of the inner wall of the mounting frame 1. A driving device for driving the screw rod 8 to rotate is arranged on the mounting frame 1. The upper end of the guide rod 9 is fixedly connected to the top surface of the inner wall of the mounting frame 1. The screw rod 8 passes through one of the moving plates 7 and is in threaded cooperation therewith, and the guide rod 9 passes through the other moving plate 7 and is in clearance fit therewith. A first hydraulic cylinder 10 is fixedly installed on the moving plate 7. The movable end of the first hydraulic cylinder 10 is fixedly installed with a second hydraulic cylinder 11. The movable ends of the second hydraulic cylinders 11 are respectively fixedly connected to the corresponding moving molds 4. When the driving device is turned on, the driving device can drive the screw rod 8 to rotate. Affected by the guiding and limiting of the guide rod 9, the rotation of the screw rod 8 can drive the upper mold 2 to move up and down through the moving plate 7. The up and down movement of the moving plate 7 can drive the two moving molds 4 to move up and down through the first hydraulic cylinder 10 and the second hydraulic cylinder 11. The separation between the moving mold 4 and the upper mold 2 can be adjusted through the first hydraulic cylinder 10, and the two moving molds 4 can be separated through the second hydraulic cylinder 11.

[0025] As Figure 1 shown, further preferably, the driving device is a motor 12. The motor 12 is fixedly installed on the top surface of the mounting frame 1. The output shaft of the motor 12 passes through the mounting frame 1 and is rotatably connected. The upper end of the output shaft of the motor 12 is fixedly connected to the screw rod 8. When the motor 12 is turned on, the rotation of the output shaft of the motor 12 can drive the screw rod 8 to rotate. By controlling the rotation of the output shaft of the motor 12, the moving direction of the moving plate 7 can be controlled.

[0026] As Figure 1 shown, further preferably, the one-way feeding structure is a baffle 13. The baffle 13 is arranged in the heat preservation crucible 5 and is located at the feeding port. The upper part of the baffle 13 is hinged to the inner wall of the heat preservation crucible 5, and one side of the baffle 13 is in contact and cooperation with the inner wall of the heat preservation crucible 5. When the molten metal is fed into the heat preservation crucible 5 along the feeding port, it can push the baffle 13 to rotate, so that the molten metal flows into the bottom of the heat preservation crucible 5. When the heat preservation crucible 5 is pressurized through the air pressure control system, the baffle 13 can block the feeding port to avoid air leakage in the heat preservation crucible 5. The structure of this one-way feeding structure is simple and convenient to use.

[0027] As Figure 1 shown, further preferably, a feeding hopper 14 is fixedly installed at the feeding port. The feeding hopper 14 can guide the molten metal and facilitate the molten metal to enter the heat preservation crucible 5 along the feeding port.

[0028] As Figure 1 and 2As shown, further preferably, the feeding control device includes an adjusting pipe 15. The adjusting pipe 15 is located in the upper part of the heat-insulating crucible 5. One end of the adjusting pipe 15 is fixedly connected to and communicates with the feeding pipe 6. The other end of the adjusting pipe 15 penetrates through the heat-insulating crucible 5 and is fixedly connected. Two movable blocks 16 are arranged in the adjusting pipe 15. The movable blocks 16 are slidably matched with the inner wall of the adjusting pipe 15. A heat-resistant gasket is arranged on the outer periphery of the movable blocks 16, which can ensure the sealing between the movable blocks 16 and the adjusting pipe 15. The movable blocks 16 are fixedly connected by a connecting rod. On the outer wall of the other side of the heat-insulating crucible 5, a third hydraulic cylinder 17 is installed through a connecting frame. The movable end of the third hydraulic cylinder 17 is fixedly connected to the corresponding movable block 16. A through hole is arranged on the adjusting pipe 15 between the two movable blocks 16. By controlling the expansion and contraction of the third hydraulic cylinder 17, one side of the two movable blocks 16 can be controlled. When the through hole is between the two movable blocks 16, the left movable block 16 can prevent the heat-insulating crucible 5 from communicating with the outside, and can ensure the pressure inside the heat-insulating crucible 5. The right movable block 16 can cut off the through hole from the feeding pipe 6. When it is necessary to stop feeding, by controlling the contraction of the third hydraulic cylinder 17, when the right movable block 16 moves to the left side of the through hole, the through hole can communicate with the feeding pipe 6, so that the molten metal in the feeding pipe 6 flows down under the action of gravity.

[0029] As Figure 1 and 2 shown, further preferably, round table structures are respectively arranged on both sides of the movable block 16. Four clamping rings 18 are fixedly installed in the adjusting pipe 15. The four clamping rings 18 are respectively arranged in pairs on both sides of the corresponding movable block 16. The inner walls of the clamping rings 18 are respectively clamped with both sides of the corresponding movable block 16. Through the frustum-shaped clamping structure, the sealing performance of the feeding control device can be ensured. In addition, the movement of the movable block 16 in the adjusting pipe 15 will cause wear, but this wear will not affect the sealing performance of the frustum-shaped clamping structure, which can provide double guarantee.

[0030] As Figure 1 shown, further preferably, a robotic arm is arranged at the rear side of the mounting frame 1. A connecting plate is arranged on the robotic arm. A clamping block is arranged on the top surface of the connecting plate, and the clamping block can be inserted into the wheel hub. The movement of the connecting plate can be controlled through the robotic arm. When the formed wheel hub is separated from the two moving molds 4, the formed wheel hub can be caught and driven to move.

[0031] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by mutually replacing the above features with technical features (but not limited to) having similar functions disclosed in the present application.

[0032] Except for the technical features described in the specification, the remaining technical features are well-known to those skilled in the art. To highlight the innovative features of the present invention, the remaining technical features will not be elaborated herein.

Claims

1. A wheel hub pressing and forming device, comprising a mounting frame (1), wherein an upper mold (2) and a lower mold (3) are arranged in the mounting frame (1), wherein the bottom surface of the upper mold (2) cooperates with the top surface of the lower mold (3), and wherein: Two movable molds (4) are arranged between the upper mold (2) and the lower mold (3), and the movable mold (4) cooperates with the upper mold (2) and the lower mold (3). A movable device for driving the upper mold (2) and the movable mold (4) to move is arranged on the mounting frame (1). An air hole is opened on the top surface of the upper mold (2). An insulating crucible (5) is arranged at the bottom of the mounting frame (1). The bottom surface of the lower mold (3) is fixedly connected to the top of the insulating crucible (5). A feeding pipe (6) is arranged in the insulating crucible (5). The feeding pipe (6) passes through the lower mold (3) and is fixedly connected. A feeding port is arranged on one side of the insulating crucible (5), and a one-way feeding structure is arranged at the feeding port. A feeding control device is arranged in the insulating crucible (5). A connecting pipe that is interconnected with the insulating crucible (5) is fixedly installed on the other side of the insulating crucible (5). The connecting pipe is connected to the air pressure control system.

2. A wheel hub pressing and forming device according to claim 1, characterized in that: The moving device comprises two moving plates (7), the two moving plates (7) are fixedly mounted on both sides of the upper mold (2), a screw rod (8) and a guide rod (9) are arranged in the mounting frame (1), the upper end of the screw rod (8) is rotatably connected to the top surface of the inner wall of the mounting frame (1), the mounting frame (1) is provided with a driving device for driving the screw rod (8) to rotate, the upper end of the guide rod (9) is fixedly connected to the top surface of the inner wall of the mounting frame (1), the screw rod (8) passes through one of the moving plates (7) and is threadedly engaged, the guide rod (9) passes through the other moving plate (7) and is clearance-engaged, a first hydraulic cylinder (10) is fixedly mounted on the moving plate (7), a second hydraulic cylinder (11) is fixedly mounted on the movable end of the first hydraulic cylinder (10), and the movable ends of the second hydraulic cylinder (11) are respectively fixedly connected to the corresponding moving molds (4).

3. A wheel hub pressing and forming device according to claim 2, characterized in that: The driving device is a motor (12), which is fixedly mounted on the top surface of the mounting frame (1), the output shaft of the motor (12) passes through the mounting frame (1) and is rotatably connected, and the output shaft of the motor (12) is fixedly connected to the upper end of the screw rod (8).

4. A wheel hub pressing and forming device according to claim 1, characterized in that: The one-way feeding structure is a baffle (13), which is arranged in the heat-insulating crucible (5) and located at the feeding port, the upper part of the baffle (13) is hingedly connected to the inner wall of the heat-insulating crucible (5), and one side of the baffle (13) is in contact with the inner wall of the heat-insulating crucible (5).

5. A wheel hub pressing and forming device according to any one of claims 1 or 4, characterized in that: A feed hopper (14) is fixedly installed at the feed inlet.

6. A wheel hub pressing and forming device according to claim 1, characterized in that: The feeding control device comprises an adjusting tube (15), the adjusting tube (15) being located at the upper inner part of the heat-insulating crucible (5), one end of the adjusting tube (15) being fixedly connected to the feeding tube (6) and being in communication with each other, the other end of the adjusting tube (15) passing through the heat-insulating crucible (5) and being fixedly connected, two movable blocks (16) being arranged in the adjusting tube (15), the movable blocks (16) being slidably matched with the inner wall of the adjusting tube (15), the movable blocks (16) being fixedly connected with each other via a connecting rod, a third hydraulic cylinder (17) being installed on the outer wall of the other side of the heat-insulating crucible (5) via a connecting frame, the movable end of the third hydraulic cylinder (17) being fixedly connected to the corresponding movable block (16), and a through hole being arranged on the adjusting tube (15) and being located between the two movable blocks (16).

7. A wheel hub pressing and forming device according to claim 6, characterized in that: Both sides of the movable block (16) are provided with truncated cone structures respectively. Four clamping rings (18) are fixedly installed in the adjusting tube (15). The four clamping rings (18) are respectively arranged on both sides of the corresponding movable block (16) in pairs. The inner walls of the clamping rings (18) are respectively engaged with both sides of the corresponding movable block (16).

8. A wheel hub pressing and forming device according to claim 1, characterized in that: A mechanical arm is arranged on the rear side of the mounting frame (1), and a connecting plate is arranged on the mechanical arm.

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