Aluminum alloy forging die preheating device

Abstract

The utility model discloses an aluminum alloy forging die preheating device, which belongs to the technical field of die preheating and comprises a supporting seat, a die holder is arranged on the supporting seat, a lower die is arranged on the die holder, a top frame is mounted on the supporting seat, a lifting plate is arranged on the top frame, and an upper die is arranged on the lower surface of the lifting plate. Through the arranged preheating device, the lower die can be effectively preheated, normal use of the die during follow-up aluminum alloy forging is guaranteed, a water tank, a circulating water pump, a heating pipe and other structures are arranged in the preheating device, water can be recycled, and the use cost is reduced; the lower mold is heated through atomized steam, the mold can be rapidly heated, the preheating uniformity can be improved, the heating uniformity of the lower mold is improved, the service life of the lower mold is prolonged to a certain extent, the steam obtained after heat exchange is condensed into water, the water enters the water tank through the recovery pipe, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of die preheating, in particular to a preheating device for an aluminum alloy forging die. Background Art

[0002] Aluminum alloy forging dies are tools used during the aluminum alloy forging process to plastically deform the aluminum alloy material under the constraints of the die, thereby obtaining the desired shape of the forging. When using aluminum alloy forging dies, they need to be preheated. Preheating ensures that the die reaches the required temperature at the beginning of forging, thereby reducing the temperature difference between the die and the high-temperature aluminum alloy billet, reducing thermal stress and preventing die cracking. Heating can also improve the wear resistance and service life of the die, reducing production costs.

[0003] Existing aluminum alloy forging dies typically use an oil heating device to preheat the die using hot oil before forging the aluminum alloy. However, using hot oil for die preheating requires the die cavity to be completely filled with hot oil for effective preheating, requiring a large amount of hot oil. Furthermore, heat is lost during the process of filling the die cavity, resulting in energy loss and increased costs. Furthermore, hot oil preheating of the die is generally uneven, making preheating temperature deviations more likely, thus shortening the die's service life. Utility Model Content

[0004] The main purpose of the utility model is to provide an aluminum alloy forging die preheating device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A preheating device for an aluminum alloy forging die comprises a support base, a die base is provided on the support base, and a lower die is provided on the die base, a top frame is installed on the support base, and a lifting plate is provided on the top frame, an upper die is provided on the lower surface of the lifting plate, support legs are provided on the lower surface of the support base, and a cross plate is provided on the support legs, and a preheating device is provided on the cross plate.

[0007] Preferably, a column is provided on the support seat, and the top frame is fixedly mounted on the column.

[0008] Preferably, an oil cylinder is provided on the top frame, and a telescopic shaft of the oil cylinder is connected to the lifting plate. A guide column is provided on the lifting plate, and the guide column passes through the top frame.

[0009] Preferably, the preheating device includes a water tank, a heating pipe, a water pumping pipe, a circulating water pump, a delivery pipe, a spray assembly and a recovery pipe. The water tank is fixedly mounted on a horizontal plate and a cover plate is provided on the water tank. The heating pipe is arranged inside the water tank. One end of the water pumping pipe is located in the water tank, and the other end passes through the water tank and is connected to the circulating water pump. The delivery pipe is connected to the circulating water pump, and the delivery pipe is fixedly connected to the spray assembly. The spray assembly is located in the mold base. One end of the recovery pipe passes through the side wall of the mold base and is connected to the spray assembly, and the other end of the recovery pipe is connected to the water tank.

[0010] Preferably, the spray assembly includes a main pipe, a secondary pipe and a steam nozzle, the main pipe and the secondary pipe are connected by a connecting pipe, and the secondary pipe is symmetrically arranged relative to the main pipe, the main pipe is fixedly connected to the end of the delivery pipe, and the steam nozzle is installed on the main pipe and the secondary pipe, and the steam nozzle is evenly distributed on the main pipe and the secondary pipe.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the aluminum alloy forging die preheating device can effectively preheat the lower die through the set preheating device, ensuring the normal use of the die during subsequent aluminum alloy forging. The preheating device is provided with a water tank, a circulating water pump, a heating pipe and other structures, which can realize the recycling of water and reduce the cost of use. A spray assembly is installed inside the die base, and the atomized steam is used to heat the lower die, which can not only quickly realize the heating of the die, but also increase the preheating uniformity and improve the heating uniformity of the lower die, thereby extending the service life of the lower die to a certain extent. The steam after heat exchange condenses into water and enters the water tank through the recovery pipe, which will not cause waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a structural diagram of the preheating device of the utility model;

[0014] Figure 3 This is a structural diagram of the water tank of the utility model;

[0015] Figure 4 This is a schematic structural diagram of the spray assembly of the utility model.

[0016] In the figure: 1. Support base; 2. Mold base; 3. Lower mold; 4. Top frame; 5. Lifting plate; 6. Upper mold; 7. Horizontal plate; 8. Preheating device; 801. Water tank; 802. Heating pipe; 803. Suction pipe; 804. Circulating water pump; 805. Delivery pipe; 806. Spray assembly; 8061. Main pipeline; 8062. Auxiliary pipeline; 8063. Steam nozzle; 807. Recovery pipe; 9. Oil cylinder; 10. Guide column. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-Figure 4 As shown, a preheating device for an aluminum alloy forging die comprises a support base 1, a die base 2 being provided on the support base 1, a lower die 3 being provided on the die base 2, a top frame 4 being mounted on the support base 1, a lifting plate 5 being provided on the top frame 4, an upper die 6 being provided on the lower surface of the lifting plate 5, a support leg being provided on the lower surface of the support base 1, a cross plate 7 being provided on the support leg, and a preheating device 8 being provided on the cross plate 7. A column is provided on the support base 1, and the top frame 4 is fixedly mounted on the column. An oil cylinder 9 is provided on the top frame 4, and the telescopic shaft of the oil cylinder 9 is connected to the lifting plate 5. A guide column 10 is provided on the lifting plate 5, and the guide column 10 passes through the top frame 4.

[0019] When forging aluminum alloy, the entire device is stably placed by the legs on the lower surface of the support base 1. The lower die 3 on the die base 2 is preheated by the preheating device 8. After the lower die 3 is preheated, the material is placed on the lower die 3 and the oil cylinder 9 on the top frame 4 is started. The telescopic shaft of the oil cylinder 9 brings the lifting plate 5 and the upper die 6 down. During this process, the guide column 10 ensures the stability of the descent of the lifting plate 5. When the upper die 6 contacts the material, it exerts force on the material and cooperates with the lower die 3 to complete the forming and forging of the material. After the aluminum alloy forging is completed, the oil cylinder 9 on the top frame 4 is started to remove the die from the lifting plate 5 and the upper die 6, and then the aluminum alloy formed part can be removed.

[0020] Through the above implementation scheme, the preheating device 8 includes a water tank 801, a heating pipe 802, a water pumping pipe 803, a circulating water pump 804, a delivery pipe 805, a spray assembly 806 and a recovery pipe 807. The water tank 801 is fixedly mounted on the horizontal plate 7, and a cover plate is provided on the water tank 801. The heating pipe 802 is arranged inside the water tank 801. One end of the water pumping pipe 803 is located in the water tank 801, and the other end passes through the water tank 801 and is connected to the circulating water pump 804. The delivery pipe 805 is connected to the circulating water pump 804, and the delivery pipe 805 is fixedly connected to the spray assembly 806. The spray assembly 806 is located in the mold base 2. One end of the recovery pipe 807 passes through the side wall of the mold base 2 and is connected to the spray assembly 806, and the other end of the recovery pipe 807 is connected to the water tank 801.

[0021] The spray assembly 806 includes a main pipe 8061, a secondary pipe 8062 and a steam nozzle 8063. The main pipe 8061 and the secondary pipe 8062 are connected by a connecting pipe, and the secondary pipe 8062 is symmetrically arranged relative to the main pipe 8061. The main pipe 8061 is fixedly connected to the end of the delivery pipe 805. The steam nozzle 8063 is installed on the main pipe 8061 and the secondary pipe 8062, and the steam nozzle 8063 is evenly distributed on the main pipe 8061 and the secondary pipe 8062.

[0022] When the preheating device 8 is used, the power supply of the heating pipe 802 inside the water tank 801 is turned on, and the heating pipe 802 is energized to generate heat that acts on the inside of the water tank 801, thereby heating the water inside the water tank 801. Then, the circulating water pump 804 is started to pump water through the pumping pipe 803, and the hot water enters the main pipe 8061 in the spray assembly 806 through the delivery pipe 805. Under the action of the connecting pipe, the hot water is diverted to the auxiliary pipe 8062, and finally the high temperature in the main pipe 8061 and the auxiliary pipe 8062 is heated. Hot water is ejected from the steam nozzle 8063 in the form of steam. The ejected steam acts on the lower mold 3, quickly preheating the lower mold 3 while ensuring preheating uniformity. The steam used for heat exchange condenses into water droplets in the mold base 2, and finally gathers together and flows back to the water tank 801 through the recovery pipe 807, realizing the recycling of water and reducing the cost of use. When necessary, the lower mold 3 can be removed from the mold base 2 to facilitate maintenance and replacement of the spray assembly 806. It has a simple structure and is easy to operate.

[0023] It should be noted that, by means of the preheating device 8, the lower die 3 can be effectively preheated to ensure the normal use of the die during subsequent aluminum alloy forging. The preheating device 8 is provided with structures such as a water tank 801, a circulating water pump 804 and a heating pipe 802, which can realize the recycling of water and reduce the cost of use. A spray assembly 806 is installed inside the die base 2 to heat the lower die 3 with atomized steam, which can not only quickly realize the heating of the die, but also increase the preheating uniformity and improve the heating uniformity of the lower die 3, thereby extending the service life of the lower die 3 to a certain extent. The steam after heat exchange is condensed into water and enters the water tank 801 through the recovery pipe 807, which will not cause waste of resources. A main pipeline 8061 and a secondary pipeline 8062 are provided in the spray assembly 806, and a plurality of steam nozzles 8063 are provided on each pipeline, which can ensure uniformity in the initial stage of spraying, further improving the preheating uniformity. At the same time, the steam nozzle 8063 can be quickly installed and disassembled for easy replacement.

[0024] The above content describes the operating principles, features, and beneficial effects of the present invention. Persons skilled in the art will appreciate that the above content does not limit the present invention. The above embodiments and description describe the basic principles and features of the present invention. Various modifications and improvements may be made to the present invention as long as they are consistent with the concept of the present invention, and all such modifications shall fall within the scope of protection claimed by the present invention.

Claims

1. A preheating device for an aluminum alloy forging die, comprising a support base (1), a die base (2) provided on the support base (1), a lower die (3) provided on the die base (2), a top frame (4) mounted on the support base (1), a lifting plate (5) provided on the top frame (4), an upper die (6) provided on the lower surface of the lifting plate (5), characterized in that: The lower surface of the support seat (1) is provided with supporting legs, and a transverse plate (7) is provided on the supporting legs, and a preheating device (8) is provided on the transverse plate (7).

2. The aluminum alloy forging die preheating device according to claim 1, characterized in that: The support seat (1) is provided with a column, and the top frame (4) is fixedly mounted on the column.

3. The aluminum alloy forging die preheating device according to claim 2, characterized in that: An oil cylinder (9) is provided on the top frame (4), and a telescopic shaft of the oil cylinder (9) is connected to the lifting plate (5). A guide column (10) is provided on the lifting plate (5), and the guide column (10) passes through the top frame (4).

4. The aluminum alloy forging die preheating device according to claim 3, characterized in that: The preheating device (8) comprises a water tank (801), a heating pipe (802), a water extraction pipe (803), a circulating water pump (804), a delivery pipe (805), a spray assembly (806) and a recovery pipe (807). The water tank (801) is fixedly mounted on the horizontal plate (7), and a cover plate is provided on the water tank (801). The heating pipe (802) is arranged inside the water tank (801), and one end of the water extraction pipe (803) is located inside the water tank (801). The other end passes through the water tank (801) and is connected to the circulating water pump (804). The delivery pipe (805) is connected to the circulating water pump (804), and the delivery pipe (805) is fixedly connected to the spray assembly (806). The spray assembly (806) is located in the mold base (2). One end of the recovery pipe (807) passes through the side wall of the mold base (2) and is connected to the spray assembly (806), and the other end of the recovery pipe (807) is connected to the water tank (801).

5. The aluminum alloy forging die preheating device according to claim 4, characterized in that: The spray assembly (806) comprises a main pipe (8061), a secondary pipe (8062) and a steam nozzle (8063); the main pipe (8061) and the secondary pipe (8062) are connected via a connecting pipe, and the secondary pipe (8062) is symmetrically arranged relative to the main pipe (8061); the main pipe (8061) is fixedly connected to the end of the delivery pipe (805); the steam nozzle (8063) is installed on the main pipe (8061) and the secondary pipe (8062), and the steam nozzles (8063) are evenly distributed on the main pipe (8061) and the secondary pipe (8062).

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