Water-cooled casting hot-pressing sizing device and sizing method

Abstract

The invention discloses a hot-pressing sizing device and method for a water-cooling casting, and relates to the technical field of hot-pressing sizing of aluminum alloy castings. The hot-pressing sizing device comprises an annular rotating platform, a plurality of sizing molds, a pressurizing device and a heat conducting device. The rotating platform is driven by a motor to intermittently rotate by 360 degrees, and the shape correcting mold is driven to be switched among different stations. The shape correcting die comprises a lower die plate, an upper die plate, a guide column, a die plate reset spring and a self-locking mechanism. The pressurizing device is arranged on the inner side of the rotating platform and used for pressurizing the shape correcting mold. The heat conduction device is arranged on the outer side of the rotating platform and used for heating and cooling the shape correcting mold. Through cooperation of the rotating platform, the shape correcting mold, the pressurizing device and the heat conduction device, continuous shape correcting operation is achieved, the shape correcting efficiency is improved, and energy consumption is reduced. The special structural design of the shape correction mold ensures the accuracy and stability of shape correction, and the structural design of the heat conduction device remarkably improves the heat conduction efficiency and reduces the energy consumption.

Description

Technical Field

[0001] The invention relates to the technical field of hot pressing and shaping of aluminum alloy castings, in particular to a hot pressing and shaping device and a shaping method for water-cooled castings. Background Art

[0002] Aluminum alloy water-cooled castings are widely used in aerospace, automotive, and other fields. Due to the limitations of the casting process, these castings are prone to shape and dimensional deviations, necessitating shape correction. Traditional shape correction techniques primarily include cold-pressing mechanical correction and hot-pressing correction.

[0003] Cold pressing mechanical shaping uses mechanical force to apply pressure to the casting. It is simple to operate and low in cost. However, for aluminum alloy water-cooled castings with complex shapes and relatively fragile internal structures, cold pressing mechanical shaping can easily cause defects such as scratches on the casting surface and cracks inside. In addition, the shaping accuracy is limited, making it difficult to meet the requirements of high-precision products.

[0004] Although the traditional hot pressing shaping process can improve the shortcomings of mechanical shaping, there are still some problems: on the one hand, the equipment is usually a fixed structure, the positions of the casting and mold are relatively fixed, and the mold heating and cooling processes require waiting, resulting in a long shaping cycle, low efficiency and high energy consumption; on the other hand, the heating and cooling systems are not closely coordinated with the pressurization system, making it difficult to accurately control the temperature-time curve during the shaping process, affecting the shaping effect and dimensional stability of the casting.

[0005] In addition, existing hot pressing and shaping devices are not efficient in energy utilization. Energy is lost during the heating and cooling processes, resulting in energy waste, increased production costs, and limiting their application in large-scale production. Summary of the Invention

[0006] In order to overcome the deficiencies in the background technology, the present invention discloses a water-cooled casting hot pressing shape correction device and a shape correction method.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] A water-cooled casting hot pressing and shaping device, comprising:

[0009] The rotating platform has a ring structure and is driven by a motor to rotate intermittently 360°.

[0010] The shape correction mold is a plurality of molds arranged at intervals along the rotating platform in the circumferential direction; the shape of the aluminum alloy water-cooled casting is corrected when the mold is closed;

[0011] The pressurizing device is located inside the rotating platform and is used to pressurize the shaping mold;

[0012] The heat conducting device is arranged outside the rotating platform; there are two heat conducting devices, one of which corresponds to the pressurizing device and is used to heat the shaping mold; the other is used to cool the shaping mold after being heated and pressurized.

[0013] Preferably, the shape correction mold includes:

[0014] Lower template, mounted on a rotating platform;

[0015] The upper template is arranged above the lower template; a cavity corresponding to the aluminum alloy water-cooled casting is provided between the upper template and the lower template;

[0016] There are two guide posts, one on each side of the cavity; the bottom of the guide post is firmly connected to the lower template, and the top of the guide post is movable through the upper template;

[0017] There are two template return springs, which are respectively sleeved on the rods of the two guide columns located between the upper template and the lower template;

[0018] Self-locking mechanism, installed on the top of the guide column, used to lock the upper mold plate after mold closing;

[0019] Wherein, both the lower template and the upper template are provided with a heat-conducting cavity corresponding to the heat-conducting device.

[0020] Preferably, the self-locking mechanism comprises:

[0021] A handle, the shaft of which moves through two guide posts;

[0022] The cam self-locking block is tightly connected to the handle; after the mold is closed, the cam self-locking block contacts the top of the upper mold plate.

[0023] Preferably, the handle is bent at a right angle or has a U-shaped structure; and the number of the cam self-locking blocks is two and spaced apart.

[0024] Preferably, a guide shaft with a non-circular cross-section is provided at the bottom of the lower template, and a step countersunk hole is provided at the position of the rotating platform corresponding to the guide shaft; a template floating spring is provided on the shaft body between the guide shaft and the step surface of the step countersunk hole; the elastic force of the template floating spring is less than the elastic force of the template reset spring; when the pressure device presses down the upper template, the bottom of the guide shaft passes through the rotating platform and contacts the ground or other supports.

[0025] Preferably, the pressurizing device comprises:

[0026] A column, the bottom of which is firmly connected to the ground;

[0027] A cantilever beam is fastened to the top of the column;

[0028] A first telescopic cylinder is mounted on the cantilever beam, and a telescopic rod of the first telescopic cylinder movably passes through the cantilever beam;

[0029] The pressing block is arranged below the cantilever beam and is correspondingly and firmly connected to the telescopic rod of the first telescopic cylinder.

[0030] Preferably, the heat conducting device comprises:

[0031] A support frame, installed on the ground;

[0032] The movable plate is arranged on one side of the support frame corresponding to the shape correction mold;

[0033] Two guide rods are spaced apart, one end of the guide rod is fixedly connected to the movable plate, and the other end movably passes through the support frame;

[0034] The second telescopic cylinder is installed on the side of the support frame away from the movable plate, and the telescopic rod of the second telescopic cylinder is movable through the support frame and is fastened to the movable plate;

[0035] There are two floating docking mechanisms spaced apart in an upper and lower arrangement, and the two floating docking mechanisms are connected to the movable plate in an upper and lower floating manner;

[0036] The floating docking mechanism comprises:

[0037] The floating plate has a T-shaped slider on one side, and a sliding groove is provided at the position of the movable plate corresponding to the slider, and the slider and the sliding groove slide in correspondence;

[0038] A support spring is provided in the slide groove, and support springs are provided at the top and bottom of the slider to enable the floating plate to float up and down along the slide groove;

[0039] The plug is installed at the open end of the slide to provide support force for the corresponding support spring;

[0040] The heat-conducting plug is installed on the floating plate and can be plugged and adapted to the heat-conducting cavity of the lower template or the upper template; wherein, the heat-conducting plug used for heating is provided with an electric heating device, and the heat-conducting plug used for cooling is provided with a water cooling channel.

[0041] Preferably, the thermally conductive plug has a wedge-shaped structure.

[0042] Preferably, wedge-shaped graphite blocks corresponding to and matching the wedge-shaped surfaces of the heat-conducting plugs are embedded in the heat-conducting cavities of the lower template and the upper template.

[0043] The shaping method using a water-cooled casting hot pressing shaping device comprises the following steps:

[0044] S1. Place the water-cooled casting in the cavity of the shaping mold;

[0045] S2. Start the rotating platform, which drives the shape correction mold to rotate to the pressurizing device station;

[0046] S3. The heat conducting device for heating is connected to the shaping mold to preheat the shaping mold; at the same time, the pressurizing device is started to pre-press the shaping mold until the shaping mold is heated to the set temperature;

[0047] S4, start the pressurizing device again to heat and close the shaping mold;

[0048] S5. The pressurizing device and the heat conducting device for heating are reset, and the rotating platform is controlled to drive the shaping mold to rotate to the cooling station;

[0049] S6. The heat conducting device for cooling is connected to the shaping mold to cool the shaping mold;

[0050] S7, open the shape correction mold and replace the next aluminum alloy water-cooled casting;

[0051] S8. Repeat steps S1 to S7.

[0052] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0053] (1) The present invention realizes continuous shaping operation through the coordinated cooperation of the rotating platform, the shaping mold, the pressurizing device and the heat conducting device. The intermittent 360° rotation function of the rotating platform drives the shaping mold to switch between different workstations, so that multiple shaping molds can be heated, pressurized, shaped and cooled in sequence, without the need to perform complex operational preparations separately at each workstation, thereby effectively improving the shaping efficiency. Moreover, compared with the traditional single-piece shaping method, the frequent start and stop of the equipment and the long waiting time are reduced, and the optimization and integration of the shaping process are realized, thereby greatly reducing energy consumption and achieving the purpose of energy saving, which is of great significance for cost control and environmental friendliness in large-scale production.

[0054] (2) The special structural design of the shape correction mold of the present invention includes components such as an upper mold plate, a lower mold plate, a guide column, a mold plate return spring, and a self-locking mechanism, which ensures the accuracy and stability of the shape correction. The combination of the guide column and the mold plate return spring not only enables the upper mold plate to move up and down stably along the guide column, ensuring the accuracy of mold closing and opening, but also when the downward pressure is lost, the upper mold plate can automatically move up to open the mold, which is easy and efficient to operate. After the mold is closed, the self-locking mechanism deflects downward through the cam self-locking block under the action of its own gravity and the gravity of the handle, locking the upper mold plate and continuously applying extrusion pressure to the aluminum alloy water-cooled casting, effectively preventing the casting from being deformed or displaced due to unstable pressure during the heating and pressurization process, ensuring the consistency and stability of the shape correction quality, and also reducing the operator's burden of continuous pressure operation after the mold is closed.

[0055] (3) The structural design of the heat-conducting device of the present invention significantly improves the efficiency of heat conduction and reduces energy consumption. The heat-conducting device can fit tightly with the shaping mold through the combination of a floating docking mechanism and a wedge-shaped heat-conducting plug, ensuring high efficiency of heat conduction. Whether in the heating or cooling process, the heat-conducting plug can penetrate deep into the heat-conducting cavity of the shaping mold to achieve rapid heat transfer. The heat-conducting plug used for heating is internally provided with an electric heating device, which can accurately control the heating temperature according to actual needs, ensuring that the aluminum alloy water-cooled casting is heated evenly during the shaping process and preventing cracking; the heat-conducting plug used for cooling is internally provided with a water-cooling channel, and the introduction of circulating cooling water can quickly reduce the temperature of the casting, allowing it to be further shaped and avoid rebound. In addition, the wedge-shaped design and the optional wedge-shaped graphite block further enhance the tightness of the fit between the heat-conducting plug and the shaping mold, improve the heat conduction efficiency, reduce heat loss, reduce energy consumption, and improve the economy and environmental protection of the entire shaping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0057] Figure 2 A top view of the present invention;

[0058] Figure 3 It is a structural schematic diagram of the present invention;

[0059] Figure 4 Schematic diagram of the structure of the shape correction mold;

[0060] Figure 5 Schematic diagram of the installation structure of the shape correction mold and the rotating platform;

[0061] Figure 6 Schematic diagram of the docking structure between the shape correction mold and the heat conduction device.

[0062] In the figure: 1. Rotating platform; 2. Correction mold; 2-1. Lower template; 2-2. Upper template; 2-3. Guide column; 2-4. Template return spring; 2-5. Handle; 2-6. Cam self-locking block; 2-7. Guide shaft; 2-8. Template floating spring; 3. Pressurizing device; 3-1. Column; 3-2. Cantilever beam; 3-3. First telescopic cylinder; 3-4. Pressing block; 4. Heat conducting device; 4-1. Support frame; 4-2. Movable plate; 4-3. Guide rod; 4-4. Second telescopic cylinder; 4-5. Floating plate; 4-6. Support spring; 4-7. Plug; 4-8. Heat conducting plug; 5. Wedge-shaped graphite block. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0064] In the description of the present invention, it should be noted that the terms "upper" and "lower" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0065] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0066] Example 1:

[0067] Combined with attachment Figures 1 to 3 A water-cooled casting hot press straightening device and method includes a rotating platform 1, a straightening mold 2, a pressurizing device 3, and a heat conducting device 4. The rotating platform 1 is annular in design, with space reserved within its inner ring for installation of other related equipment. Driven by a motor, the rotating platform 1 can perform intermittent 360° rotation, stopping after each rotation of a certain angle and awaiting the next rotation instruction.

[0068] Multiple sizing dies 2 are arranged circumferentially on a rotating platform 1. When the sizing dies 2 are closed, they sizing the aluminum alloy water-cooled casting. The rotating platform 1 drives the sizing dies 2 to switch between different stations, enabling continuous sizing operations, improving sizing efficiency, and effectively reducing energy consumption, thereby conserving energy.

[0069] A pressure device 3 is installed in the inner installation space of the rotating platform 1, and its function is to pressurize the shaping mold 2, prompting the shaping mold 2 to close the mold, and then complete the shaping of the aluminum alloy water-cooled casting. On the outside of the rotating platform 1, two heat conducting devices 4 are installed, one of which corresponds to the pressure device 3, and is mainly used to heat the shaping mold 2 to prevent the aluminum alloy water-cooled casting from cracking during the shaping process. After closing the mold, the shaping mold 2 can continue to be heated to achieve the shaping of the aluminum alloy water-cooled casting. The other heat conducting device 4 is located at the next station, which is used to cool the shaping mold 2 after heating and pressurization, and at the same time cool the aluminum alloy water-cooled casting to further shape it and avoid rebound.

[0070] The specific steps of the shaping method using the above-mentioned water-cooled casting hot pressing shaping device are as follows:

[0071] S1, placing the water-cooled casting in the cavity of the shaping mold 2;

[0072] S2, start the rotating platform 1, so that it drives the shape correction mold 2 to rotate to the position where the pressurizing device 3 is located;

[0073] S3, the heat conducting device 4 for heating is docked with the shaping mold 2 to preheat the shaping mold 2, and the pressurizing device 3 is started to pre-press the shaping mold 2 until the shaping mold 2 is heated to the set temperature;

[0074] S4, start the pressurizing device 3 again to perform a heating and mold closing operation on the shaping mold 2;

[0075] S5, the pressurizing device 3 and the heat conducting device 4 for heating are reset, and the rotating platform 1 is controlled to drive the shaping mold 2 to rotate to the cooling station;

[0076] S6, the heat conducting device 4 for cooling is docked with the shape correction mold 2 to cool the shape correction mold 2;

[0077] S7, open the shaping mold 2 and replace the next aluminum alloy water-cooled casting to be shaped;

[0078] S8. Repeat steps S1 to S7 to achieve continuous shape correction.

[0079] It should be noted that, when continuous shaping is not required, the aluminum alloy water-cooled casting to be shaped can be placed in the shaping mold 2 of the previous station before mold closing, and then steps S1 to S7 can be performed.

[0080] Example 2:

[0081] Combined with attachment Figures 1 to 5 A water-cooled casting hot pressing shape correction device and shape correction method, which is different from the embodiment 1 in that, on the basis of the embodiment 1, as shown in the attached Figure 4As shown, the structure of the correction mold 2 has been modified, specifically including a lower mold plate 2-1, an upper mold plate 2-2, and a self-locking mechanism. The lower mold plate 2-1 is mounted on a rotating platform 1; the upper mold plate 2-2 is positioned above the lower mold plate 2-1; and the cavity formed between the upper mold plate 2-2 and the lower mold plate 2-1 corresponds to and is adapted for the aluminum alloy water-cooled casting. Both the lower mold plate 2-1 and the upper mold plate 2-2 are provided with heat-conducting cavities adapted for the heat-conducting device 4. When the upper mold plate 2-2 is separated from the lower mold plate 2-1, i.e., in the mold-opening state, the aluminum alloy water-cooled casting can be placed into the mold cavity between the upper mold plate 2-2 and the lower mold plate 2-1. Guide posts 2-3 are provided on both sides of the mold cavity. The bottom of the guide posts 2-3 is firmly connected to the lower mold plate 2-1, and the top of the guide posts 2-3 is movable through the upper mold plate 2-2, allowing the upper mold plate 2-2 to move up and down along the guide posts 2-3. The upper mold plate 2-2 moves downward when the mold is closed, and moves upward when the mold is opened. The two guide columns 2-3 are located between the upper template 2-2 and the lower template 2-1 and are both sleeved with template return springs 2-4. When the upper template 2-2 loses the downward pressure, it can automatically move up under the action of the two template return springs 2-4 to achieve the mold opening state.

[0082] A self-locking mechanism is installed on the top of the guide column 2-3 for locking the upper template 2-2 after mold closing.

[0083] Specifically, the self-locking mechanism consists of a handle 2-5 and a cam self-locking block 2-6. The handle 2-5 is bent at a right angle or in a U-shaped structure, and its rod body moves through the two guide columns 2-3 and can deflect freely. The cam self-locking block 2-6 is tightly connected to the rod body of the handle 2-5 located between the two guide columns 2-3. After the mold is closed, the cam self-locking block 2-6 deflects downward under the combined action of its own gravity and the gravity of the handle 2-5, and its bottom contacts the top of the upper template 2-2 to achieve a self-locking function, so that the upper template 2-2 cannot move up, thereby continuously applying extrusion pressure to the aluminum alloy water-cooled casting. When the mold needs to be opened, the operator deflects the handle 2-5 upward, driving the cam self-locking block 2-6 to deflect upward, thereby releasing the conflict with the upper template 2-2. Subsequently, under the action of the template reset spring 2-4, the upper template 2-2 automatically moves up, completing the automatic mold opening.

[0084] Furthermore, two cam self-locking blocks 2 - 6 are arranged at intervals, which can ensure that the cam self-locking blocks 2 - 6 apply force evenly to the upper template 2 - 2 and provide favorable conditions for avoiding the pressurizing device 3.

[0085] In addition, the bottom of the lower template 2-1 is provided with a guide shaft 2-7 with a non-circular cross-section. The cross-section can be elliptical, triangular, rectangular, or a structure with one or both sides of the circle cut off, in order to prevent the lower template 2-1 from rotating at will. The rotating platform 1 is provided with a step countersunk hole at the position corresponding to the guide shaft 2-7. The shaft body between the guide shaft 2-7 and the step surface of the step countersunk hole is provided with a template floating spring 2-8, and the elastic force of the template floating spring 2-8 is less than the elastic force of the template reset spring 2-4. When the pressure device 3 presses down the upper template 2-2, the bottom of the guide shaft 2-7 passes through the rotating platform 1 and contacts the ground or other supports. When the upper template 2-2 is pre-pressed or the mold closing pressure is applied, the bottom of the guide shaft 2-7 directly passes through the rotating platform 1 and contacts the ground or other supports, thereby avoiding direct contact between the lower template 2-1 and the rotating platform 1, preventing the pressure from being transmitted to the rotating platform 1, and protecting the rotating platform 1 from deformation or damage caused by large unbalanced loads.

[0086] As attached Figure 3 As shown, the structure of the pressure device 3 includes a column 3-1, a cantilever beam 3-2 and a first telescopic cylinder 3-3. The bottom of the column 3-1 is tightly connected to the ground, providing a stable support for the entire device. The cantilever beam 3-2 is tightly connected to the top of the column 3-1, and the column 3-1 provides the necessary support force for the cantilever beam 3-2. The first telescopic cylinder 3-3 is installed on the cantilever beam 3-2, and its telescopic rod movably passes through the cantilever beam 3-2. A pressure block 3-4 is provided below the cantilever beam 3-2, and the pressure block 3-4 is tightly connected to the telescopic rod of the first telescopic cylinder 3-3. By controlling the extension or contraction of the first telescopic cylinder 3-3, the pressure block 3-4 can be driven to move down or up. When the pressure block 3-4 moves down, it can press the upper template 2-2, prompting the upper template 2-2 to move down, completing the mold closing action.

[0087] It should be noted that if Figure 3 As shown, a clearance groove is provided at the bottom of the pressing block 3-4. The design of the clearance groove enables the pressing block 3-4 to avoid the handle 2-5 and directly contact the upper template 2-2, thereby avoiding deformation of the handle 2-5.

[0088] Example 3:

[0089] Combined with attachment Figures 1 to 3 And attached Figure 6, a water-cooled casting hot pressing shaping device and shaping method, based on the second embodiment, the heat conducting device 4 is optimized and designed. The heat conducting device 4 mainly includes a support frame 4-1, a movable plate 4-2 and a floating docking mechanism. The support frame 4-1 is installed on the ground and serves as the installation base of the entire device. A movable plate 4-2 is provided on the side of the support frame 4-1 corresponding to the shaping mold 2. The movable plate 4-2 is connected to the support frame 4-1 through two guide rods 4-3 that are tightly connected at intervals. The two guide rods 4-3 are horizontally movable and penetrate the support frame 4-1. A second telescopic cylinder 4-4 is installed on the side of the support frame 4-1 away from the movable plate 4-2, and its telescopic rod is movable through the support frame 4-1 and is tightly connected to the movable plate 4-2. Driven by the second telescopic cylinder 4-4, the movable plate 4-2 can approach or move away from the shaping mold 2 along the guide rod 4-3, thereby realizing the heating or cooling operation of the shaping mold 2.

[0090] The floating docking mechanism is provided with two upper and lower intervals, and is respectively connected to the movable plate 4-2 in an upper and lower floating manner.

[0091] Specifically, the floating docking mechanism consists of a floating plate 4-5, a support spring 4-6, and a thermally conductive plug 4-8. A T-shaped slider is provided on one side of the floating plate 4-5, and a slide groove is provided at the corresponding position of the movable plate 4-2, and the slider slides in conjunction with the slide groove. Support springs 4-6 are provided at the top and bottom of the corresponding slider in the slide groove, allowing the floating plate 4-5 to float up and down along the slide groove. A plug 4-7 is installed at the open end of the slide groove to provide support for the corresponding support spring 4-6. A thermally conductive plug 4-8 is installed on the floating plate 4-5, and the thermally conductive plug 4-8 is plugged and adapted to the thermally conductive cavity of the lower template 2-1 or the upper template 2-2 to ensure efficient heat conduction.

[0092] Thermal plug 4-8 is securely connected to floating plate 4-5, allowing it to float up and down along its corresponding chute. This design facilitates insertion of thermal plug 4-8 into the heat-conducting cavity of the shaping mold 2. During mold closing, both the upper mold plate 2-2 and the lower mold plate 2-1 move downward, and thermal plug 4-8 follows. When mating with the next shaping mold 2, the upper mold plate 2-2 and the lower mold plate 2-1 remain in the open state, and thermal plug 4-8 returns to its initial position.

[0093] It should be noted that the heat conducting plug 4-8 for heating is internally provided with an electric heating device, while the heat conducting plug 4-8 for cooling is internally provided with a water cooling channel. When heating, the electric heating device is energized; when cooling, circulating cooling water is passed into the water cooling channel.

[0094] In addition, since the shaping mold 2 is always in a closed mold state during cooling, the heat-conducting plugs 4-8 used for cooling only need to maintain a small floating space to meet the needs.

[0095] Furthermore, the thermally conductive plug 4-8 is designed with a wedge-shaped structure, and the corresponding thermally conductive cavities of the lower mold plate 2-1 and upper mold plate 2-2 are also wedge-shaped. This allows the thermally conductive plug 4-8 to achieve direct and close contact with the lower mold plate 2-1 or upper mold plate 2-2. Alternatively, a wedge-shaped graphite block 5 can be embedded in the thermally conductive cavities of the lower mold plate 2-1 and upper mold plate 2-2. This wedge-shaped graphite block 5 aligns with the wedge-shaped surface of the thermally conductive plug 4-8, similarly ensuring close contact between the thermally conductive plug 4-8 and the lower mold plate 2-1 or upper mold plate 2-2, thereby improving heat transfer efficiency and reducing energy consumption. Furthermore, the wedge-shaped graphite block 5 also provides a lubricating function, facilitating smooth entry and exit of the thermally conductive plug 4-8 into and out of the corresponding thermally conductive cavity.

[0096] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A water-cooled casting hot pressing and shaping device, characterized in that: include: The rotating platform (1) is annular in structure and is driven by a motor to rotate intermittently 360°. A plurality of shape correction molds (2) are arranged at intervals along the rotating platform (1) in the circumferential direction; the shape of the aluminum alloy water-cooled casting is corrected when the mold is closed; A pressurizing device (3) is provided inside the rotating platform (1) and is used to pressurize the shaping mold (2); A heat conducting device (4) is provided outside the rotating platform (1); there are two heat conducting devices (4), one of which corresponds to the pressurizing device (3) and is used to heat the shaping mold (2); and the other is used to cool the shaping mold (2) after being heated and pressurized.

2. The water-cooled casting hot pressing and shaping device according to claim 1, characterized in that: The shape correction mold (2) comprises: A lower template (2-1) is mounted on the rotating platform (1); The upper template (2-2) is arranged above the lower template (2-1); a cavity corresponding to the aluminum alloy water-cooled casting is provided between the upper template (2-2) and the lower template (2-1); There are two guide columns (2-3), which are located on both sides of the cavity respectively; the bottom of the guide columns (2-3) is firmly connected to the lower template (2-1), and the top movably passes through the upper template (2-2); There are two template return springs (2-4), and the two template return springs (2-4) are respectively sleeved on the rods of the two guide columns (2-3) located between the upper template (2-2) and the lower template (2-1); A self-locking mechanism, mounted on the top of the guide column (2-3), for locking the upper mold plate (2-2) after mold closing; The lower template (2-1) and the upper template (2-2) are both provided with a heat-conducting cavity corresponding to and adapted to the heat-conducting device (4).

3. The water-cooled casting hot pressing and shaping device according to claim 2, characterized in that: The self-locking mechanism comprises: A handle (2-5), the shaft of which moves through the two guide posts (2-3); The cam self-locking block (2-6) is correspondingly and firmly connected to the handle (2-5); after the mold is closed, the cam self-locking block (2-6) is correspondingly abutted against the top of the upper mold plate (2-2).

4. The water-cooled casting hot pressing shape correction device and shape correction method according to claim 3, characterized in that: The handle (2-5) is in a right-angled bend or a U-shaped structure; and the cam self-locking blocks (2-6) are two arranged at intervals.

5. The water-cooled casting hot pressing shape correction device and shape correction method according to claim 2, characterized in that: A guide shaft (2-7) having a non-circular cross-section is provided at the bottom of the lower template (2-1); a step countersunk hole is provided at a position of the rotating platform (1) corresponding to the guide shaft (2-7); a template floating spring (2-8) is sleeved on the shaft body between the guide shaft (2-7) and the step surface of the step countersunk hole; the elastic force of the template floating spring (2-8) is smaller than the elastic force of the template reset spring (2-4); when the pressure device (3) presses down the upper template (2-2), the bottom of the guide shaft (2-7) passes through the rotating platform (1) and contacts the ground or other supporting objects.

6. The water-cooled casting hot pressing and shaping device according to claim 1, characterized in that: The pressurizing device (3) comprises: The bottom of the column (3-1) is firmly connected to the ground; A cantilever beam (3-2) is fastened to the top of the column (3-1); A first telescopic cylinder (3-3) is installed on the cantilever beam (3-2), and a telescopic rod of the first telescopic cylinder (3-3) movably passes through the cantilever beam (3-2); The pressing block (3-4) is arranged below the cantilever beam (3-2) and is correspondingly and firmly connected to the telescopic rod of the first telescopic cylinder (3-3).

7. The water-cooled casting hot pressing and shaping device according to claim 2, characterized in that: The heat conducting device (4) comprises: A support frame (4-1) is installed on the ground; A movable plate (4-2) is provided on a side of the support frame (4-1) corresponding to the shape correction mold (2); Two guide rods (4-3) are spaced apart, one end of the guide rod (4-3) is firmly connected to the movable plate (4-2), and the other end movably penetrates the support frame (4-1); A second telescopic cylinder (4-4) is installed on a side of the support frame (4-1) facing away from the movable plate (4-2); a telescopic rod of the second telescopic cylinder (4-4) movably passes through the support frame (4-1) and is then securely connected to the movable plate (4-2); Two floating docking mechanisms are arranged at intervals in the upper and lower parts, and the two floating docking mechanisms are connected to the movable plate (4-2) in an upper and lower floating manner; The floating docking mechanism comprises: A floating plate (4-5) is provided with a T-shaped slider on one side, and a sliding groove is provided on the movable plate (4-2) at a position corresponding to the slider, and the slider and the sliding groove are in sliding engagement with each other; A support spring (4-6) is provided in the slide groove, and support springs (4-6) are provided at the top and bottom of the slider, for enabling the floating plate (4-5) to float up and down along the slide groove; A plug (4-7) is installed at the open end of the slideway to provide support force for the corresponding support spring (4-6); A heat-conducting plug (4-8) is mounted on the floating plate (4-5) and can be plugged and adapted to the heat-conducting cavity of the lower template (2-1) or the upper template (2-2); wherein the heat-conducting plug (4-8) used for heating is provided with an electric heating device, and the heat-conducting plug (4-8) used for cooling is provided with a water cooling channel.

8. The water-cooled casting hot pressing shape correction device and shape correction method according to claim 7, characterized in that: The heat-conducting plug (4-8) has a wedge-shaped structure.

9. The water-cooled casting hot pressing shape correction device and shape correction method according to claim 8, characterized in that: Wedge-shaped graphite blocks (5) corresponding to and matching the wedge-shaped surfaces of the heat-conducting plugs (4-8) are embedded in the heat-conducting cavities of the lower template (2-1) and the upper template (2-2).

10. A shaping method using the water-cooled casting hot pressing shaping device according to claim 1, characterized in that: The following steps are involved: S1, placing the water-cooled casting in the cavity of the shaping mold (2); S2, starting the rotating platform (1), which drives the shaping mold (2) to rotate to the position of the pressurizing device (3); S3, the heat conducting device (4) for heating is docked with the shaping mold (2) to preheat the shaping mold (2); at the same time, the pressurizing device (3) is started to pre-press the shaping mold (2); until the shaping mold (2) is heated to a set temperature; S4, starting the pressurizing device (3) again to heat and close the shaping mold (2); S5, the pressurizing device (3) and the heat conducting device (4) for heating are reset, and the rotating platform (1) is controlled to drive the shaping mold (2) to rotate to the cooling station; S6, the heat conducting device (4) for cooling is docked with the shaping mold (2) to cool the shaping mold (2); S7, open the shape correction mold (2), and replace the next aluminum alloy water-cooled casting; S8. Repeat steps S1 to S7.

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