A precision forging die for processing a flow channel plate forging of a transportation equipment

Abstract

The present application relates to the technical field of forging die, in particular to a precision forging die for processing a runner plate forging part of a transportation equipment. The precision forging die comprises a forging die body, the forging die body comprises an upper die body and a lower die body, the upper die body slides downward to press and combines with the lower die body to form a cavity, a cavity divider is installed in the cavity, which divides the cavity into a front cavity and two side cavities. When excessive material is generated in the forging runner plate, the material pressure can uniformly push the sealing plates at the four corners of the front cavity to make the front cavity and the side cavities communicate, guide the excessive material to enter the side cavities, avoid the random dispersion of burrs on the surface of the runner plate, concentrate the burrs in the four corner areas, greatly reduce the unevenness of burr distribution, since the burrs are concentrated in the non-critical area, the risk of damage to the middle runner of the runner plate due to stress concentration when removing the dispersed burrs is reduced, and the structural strength and dimensional accuracy of the runner plate are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging dies, in particular to a precision forging die for processing a flow channel plate forging part of a transportation equipment. BACKGROUND

[0002] As the core tool for efficient logistics and passenger transportation in modern society, transportation equipment mainly covers categories such as automobiles, aircraft, ships and rail transportation. In these transportation equipment, the flow channel plate is an indispensable key component, widely used in engine fuel supply systems, brake fluid transmission systems, air conditioner refrigerant circulation systems and hydraulic control systems, etc. For example, in the automobile engine, the flow channel plate is responsible for accurately distributing fuel to ensure combustion efficiency; the flow channel plate in the aircraft hydraulic system controls the flow of hydraulic oil to achieve precise operation of components such as wings and landing gear.

[0003] The core role of the flow channel plate is to guide the stable and efficient transmission of fluids (liquids or gases) along a predetermined path, while ensuring uniform distribution of fluid pressure and reducing flow resistance and energy loss. The performance of the flow channel plate directly affects the power output, safety and energy utilization of the equipment.

[0004] Currently, the flow channel plate is generally made by forging process. In this process, the metal material is heated to an appropriate temperature (softened metal, not liquefied metal) to achieve a good plastic state, and then hot pressure forming is performed by applying pressure through a die. However, since the surface of the flow channel plate needs to be pressed to form multiple complex flow channels, a large amount of excess material is generated during the forging process. These excess materials usually overflow from the gap between the upper die and the lower die, resulting in excess burrs on the surface of the flow channel plate after pressure forging. Moreover, the positions of these burrs are not fixed and are scattered throughout the surface of the flow channel plate. On the one hand, the scattered burrs increase the difficulty of removal, requiring more processing time and cost. On the other hand, due to the randomness of the burr positions, the flow channel plate is easily damaged during the burr removal process due to local stress concentration, affecting the dimensional accuracy and structural strength of the flow channel plate, and thus reducing the overall performance and reliability of the transportation equipment. SUMMARY

[0005] The present application provides a precision forging die for processing a flow channel plate forging part of a transportation equipment. Through the firm connection of the inner sub-plate and the lower die body, the precise cooperation of the movable plate mechanism and the overflow channel, and the heat dissipation design of the side cavity and the flow distribution channel, the material flow is controllable, the die structure is stable, and the heat is dissipated in time during the forging process. This allows the flow channel plate to achieve high-precision forming, reduce processing procedures and prolong the service life of the die in a high-temperature and high-pressure forging environment, thereby solving the problems raised in the background technology.

[0006] That is: in the current flow channel plate forging forming process, a large amount of excess material is generated due to the need to press out complex flow channels. These materials overflow from the gap between the molds to form scattered and randomly positioned burrs, which not only increase the difficulty and cost of removal, but also easily damage the flow channel plate during processing due to stress concentration, affecting its dimensional accuracy and structural strength, and thus reducing the performance and reliability of transportation equipment.

[0007] To achieve the above object, the structure comprises a forging die body, which is installed inside a forging hammer body, the forging hammer body comprising a plurality of supports, a die fixing frame and a transverse support frame being installed inside the plurality of supports;

[0008] The forging die body comprises an upper die body and a lower die body, the lower die body being fixedly installed inside the die fixing frame, a forging cylinder being fixedly installed inside the transverse support frame, a piston rod being slidably arranged inside the forging cylinder, the upper die body being fixedly installed at one end of the piston rod away from the forging cylinder, the upper die body being slidably lowered to close with the lower die body to form a cavity.

[0009] The cavity is internally provided with a cavity divider, which divides the inside of the cavity into a front cavity and two side cavities, the cavity divider comprising a flap mechanism, which, during the closing process of the upper die body and the lower die body, performs pressure forging on the material, and the excess material during pressure forging will force the flap mechanism to slide inside the cavity, realizing the communication between the front cavity and the side cavities, and concentrating the excess material, and during the pressure forging of the material, the front cavity is of a thin-walled structure, and the two side cavities can assist in the cooling of the material after forging.

[0010] In the above technical solution, through the cooperation of the forging die body and the forging hammer body, automatic forging forming of the flow channel plate is realized, the flap mechanism of the cavity divider can accurately control the flow direction of the excess material to the side cavities for concentrated collection, avoiding the problem of scattered burrs in traditional processes, reducing the subsequent processing difficulty and damage risk, the thin-walled structure of the front cavity combined with the auxiliary cooling of the side cavities accelerates the uniform cooling of the material, improves the forming precision and efficiency of the flow channel plate, and at the same time, the modular design of the mold ensures the stability and reliability of the equipment operation.

[0011] On this basis, the pusher comprises four struts, one end of each of the four struts being fixedly installed on the inner wall of the side cavity, the four struts each being of a hollow structure, a telescopic strut being slidably arranged inside each of the four struts, an elastic member being arranged inside each of the four struts, the other end of the elastic member being connected to the end of the telescopic strut, the side of the telescopic strut away from the elastic member being fixedly connected to the surface of the sealing plate, an outer cover structure being attached to the surface of each of the four struts, one end of the outer cover structure being connected to the inner wall of the side cavity, the other end of the outer cover structure being connected to the outer wall of the sealing plate, the outer cover structure being of an elastic material, an outer plating film being laid on the outer wall of the outer cover structure.

[0012] The pushing piece is designed in a modular assembly, four hollow struts are fixed to the inner wall of the side cavity at one end to form a stable support frame, and the telescopic bones nested inside can slide along the strut axis under the elastic force of the elastic piece to realize linkage control with the sealing plate. When the material pressure in the positive cavity exceeds the preset threshold of the elastic piece, the telescopic bone overcomes the elastic force and drives the sealing plate to displace, opens the overflow channel to make the excess material flow into the side cavity; after the pressure is released, the elastic piece drives the telescopic bone to reset and reseal the overflow channel. The outer cover structure is tightly wrapped around the struts and telescopic bones with elastic material, which not only ensures the flexibility of the components, but also forms a high-temperature-resistant, corrosion-resistant protective layer through the outer plating of the outer wall to avoid the erosion of the internal components in the high-temperature forging environment, while maintaining the elastic response accuracy of the mechanism, ensuring the stable overflow control performance of the flap mechanism in long-term high-frequency use.

[0013] In addition, four said sealing plates are fixedly installed with side limiting rods on the side close to the inner wall of the lower die body, and four sliding channels are opened in the inner wall of the lower die body, and four said side limiting rods are respectively located inside the four sliding channels.

[0014] The four sealing plates are embedded in the sliding channels of the inner wall of the lower die body through the side limiting rods, providing accurate linear guide constraint during the opening and closing of the flap mechanism, so that the sealing plate can still be tightly fitted with the inner wall of the overflow channel when it is subjected to high-temperature and high-pressure material impact, improving the sealing reliability, reducing the friction loss between components, and prolonging the service life of the mold.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] When too much material is produced on the forging flow channel plate, the material pressure can uniformly push the sealing plates at the four corners of the positive cavity to make the positive cavity communicate with the side cavity, guiding the excess material to concentrate into the side cavity. Compared with traditional molds, this avoids random dispersion of burrs on the surface of the flow channel plate. In addition, the burrs are concentrated in the four corner areas, greatly reducing the unevenness of the burr distribution. In subsequent processing, only the four corners need to be treated, reducing the difficulty of burr removal and significantly improving the processing efficiency. At the same time, since the burrs are concentrated in the non-critical area, the risk of damage to the middle flow channel of the flow channel plate due to stress concentration when removing scattered burrs is reduced, effectively protecting the structural strength and dimensional accuracy of the flow channel plate and improving the product yield.

[0017] At the same time, the setting of the side cavity makes the inner wall of the positive cavity thinner, shortens the heat conduction path, and speeds up the heat transfer speed, which can assist the material to cool and form quickly, effectively improving the cooling efficiency of the flow channel plate and improving the production efficiency. Rapid cooling helps to reduce the deformation and internal stress of the flow channel plate due to slow cooling, further improving product quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The overall structure of the present application is shown in the schematic diagram.

[0019] Figure 2 The structure of the forging hammer body in the non-starting state of the embodiment of the present application is shown in the schematic diagram.

[0020] Figure 3 The structure of the forging hammer body in the forging state of the embodiment of the present application is shown in the schematic diagram.

[0021] Figure 4 The exploded structure of the forging die body of the embodiment of the present application is shown in the schematic diagram.

[0022] Figure 5 The internal adjustment structure of the lower die body of the embodiment of the present application is shown in the schematic diagram.

[0023] Figure 6 The structure of the present application Figure 5 is shown in the schematic diagram of A.

[0024] Figure 7 The structure of the communication between the positive cavity and the side cavity in the embodiment of the present application is shown in the schematic diagram.

[0025] Figure 8 The material forging overflow structure of the embodiment of the present application is shown in the schematic diagram.

[0026] Figure 9 The upper die body cut structure of the forging die body of the embodiment of the present application is shown in the schematic diagram under the closed die state.

[0027] Figure 10 The structure of the pushing piece of the embodiment of the present application is shown in the schematic diagram.

[0028] Figure 11 The connection structure of the sealing plate and the lower die body of the embodiment of the present application is shown in the schematic diagram.

[0029] The meanings of the various labels in the figure are as follows:

[0030] 1, forging hammer body; 11, die fixing frame; 12, forging cylinder; 121, piston rod; 13, forging die body; 10, transverse support frame;

[0031] 131, upper die body; 132, lower die body; 133, cavity;

[0032] 2, cavity dividing piece; 21, side cavity; 22, positive cavity; 23, fixed plate mechanism; 24, movable plate mechanism;

[0033] 31, inner sub-plate; 32, overflow channel; 33, channel wall sealing gasket;

[0034] 41, sealing plate; 42, pushing piece; 421, outer cover structure; 422, strut; 423, telescopic strut; 424, elastic piece; 425, outer plating film; 43, closed extension plate;

[0035] 5, flow channel; 51, side limiting rod; 52, slide. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] The present application provides a precision forging die for processing flow channel plate forging of a transportation equipment, referring to Figures 1-4 As shown in the figure, the forging die body 13 is installed inside the forging hammer body 1, the forging hammer body 1 includes a plurality of supports, the inside of the plurality of supports is installed with a die fixing frame 11 and a transverse support frame 10, the forging die body 13 includes an upper die body 131 and a lower die body 132, the lower die body 132 is fixedly installed inside the die fixing frame 11, the inside of the transverse support frame 10 is fixedly installed with a forging cylinder 12, the inside of the forging cylinder 12 is slidably provided with a piston rod 121, the upper die body 131 is fixedly installed at one end of the piston rod 121 away from the forging cylinder 12, the upper die body 131 is slidably pressed down to close with the lower die body 132, forming a cavity 133.

[0038] The inside of the cavity 133 is installed with a cavity dividing piece 2, the inside of the cavity 133 is divided into a positive cavity 22 and two side cavities 21 by the cavity dividing piece 2, the cavity dividing piece 2 includes a flap mechanism 24, during closing of the upper die body 131 and the lower die body 132, the material is pressure-forged to form, the pressure-forged material will force the flap mechanism 24 to slide inside the cavity 133, realizing communication between the positive cavity 22 and the side cavities 21, concentrating the excess material, and during the material pressure-forging process, the positive cavity 22 is a thin-walled structure, the two side cavities 21 can assist the material to cool and form after forging.

[0039] The cavity dividing piece 2 further includes a fixed plate mechanism 23, the fixed plate mechanism 23 is provided with two, symmetrically arranged at the center of the cavity 133, the flap mechanism 24 is provided with four, respectively located at the ends of the two fixed plate mechanisms 23.

[0040] First, the specific structure of the fixed plate mechanism 23 is disclosed, the fixed plate mechanism 23 includes an inner sub-plate 31, the bottom of the inner sub-plate 31 is fixedly connected with the inner cavity bottom of the lower die body 132, overflow channels 32 for realizing communication between the positive cavity 22 and the side cavities 21 are formed at both ends of the inner sub-plate 31.

[0041] Combined with Figure 5It can be seen that the bottom of the inner sub-plate 31 is firmly connected with the bottom of the inner cavity of the lower die body 132 (the inner sub-plate 31 and the lower die body 132 are made of the same material), which serves as a stable support structure and provides a rigid foundation for the entire cavity dividing part 2, ensuring that the position remains fixed when it is subjected to the impact of high-pressure materials during the forging process, thereby avoiding deformation or misalignment of the cavity 133 caused by displacement, and thus ensuring the forming precision of the flow channel plate.

[0042] Further, the overflow channel 32 provided at both ends of the inner sub-plate 31 is a key channel for realizing directional transfer of excess materials. During the forging process of the flow channel plate, when the material in the positive cavity 22 generates excess portions due to the filling of the flow channel, the material pressure increases as the upper die body 131 is pressed down. When the pressure reaches a certain threshold, the flap mechanism 24 is pushed, causing the positive cavity 22 to communicate with the side cavity 21 through the overflow channel 32. This design guides the excess materials, which would have been randomly overflowing, to the side cavity 21 for centralized storage, thereby avoiding the formation of scattered burrs caused by disordered material overflow. This not only reduces the difficulty of subsequent burr removal, but also reduces the wear on the mold surface caused by uneven burr distribution, thereby prolonging the service life of the mold.

[0043] In addition, the two fixed plate mechanisms 23 arranged symmetrically can ensure uniform pressure distribution in the positive cavity 22, promote the synchronous opening of the flap mechanism 24, and realize the symmetrical transfer of excess materials, thereby further improving the symmetry and stability of the flow channel plate forming, ensuring that the size precision of each part of the flow channel plate is consistent, and meeting the high-precision requirements of transportation equipment for parts.

[0044] The specific structure of the flap mechanism 24 is then disclosed. The flap mechanism 24 includes a sealing plate 41 that can block the overflow channel 32. The outer wall of the sealing plate 41 is in contact with the inner wall of the overflow channel 32. The side of the sealing plate 41 away from the positive cavity 22 is connected with a propelling piece 42, which is located inside the side cavity 21.

[0045] The propelling piece 42 includes four struts 422, one end of each strut 422 is fixedly installed on the inner wall of the side cavity 21. The four struts 422 are hollow structures. A retractable bone 423 is slidably arranged inside each of the four struts 422. An elastic member 424 is arranged inside each of the four struts 422. The other end of the elastic member 424 is connected with the end of the retractable bone 423. The side of the retractable bone 423 away from the elastic member 424 is fixedly connected with the surface of the sealing plate 41. An outer cover structure 421 is attached to the surface of the four struts 422. One end of the outer cover structure 421 is connected with the inner wall of the side cavity 21. The other end of the outer cover structure 421 is connected with the outer wall of the sealing plate 41. The outer cover structure 421 is made of elastic material.

[0046] The improvement lies in that Figure 5 in combination with Figure 7 and Figure 8As shown, the flap mechanism 24 takes the sealing plate 41 as the core executive component, and its outer wall closely fits the inner wall of the overflow channel 32, effectively blocking the overflow channel 32 in the normal state to prevent the material in the positive cavity 22 from leaking when the forging pressure does not reach the expected stage. The sealing plate 41 is connected to the advancing element 42 away from the positive cavity 22, which, in combination Figure 10 As can be seen, in the advancing element 42, four struts 422 are stably installed at one end on the inner wall of the side cavity 21, forming a stable support structure. The struts 422 are designed in a hollow structure, with a telescopic bone 423 slidingly arranged inside, and equipped with an elastic element 424 connected to one end of the telescopic bone 423, so that the telescopic bone 423 can slide flexibly inside the strut 422 based on the elastic force of the elastic element 424. When the pressure generated by the excess material in the positive cavity 22 reaches a certain level and exceeds the elastic force threshold of the elastic element 424, the pressure pushes the telescopic bone 423 to slide in the strut 422 against the elastic force, thereby driving the sealing plate 41 to move and open the overflow channel 32, guiding the excess material to flow to the side cavity 21. When the flow channel plate is taken out after forging and forming, the pressure is eliminated, and the elastic element 424 can drive the telescopic bone 423 to drive the sealing plate 41 to reset and reseal the overflow channel 32. In addition, the outer cover structure 421 covering the surface of the four struts 422 is made of elastic material (such as rubber material), connected to the inner wall of the side cavity 21 at one end and connected to the outer wall of the sealing plate 41 at the other end, which not only effectively protects the struts 422, telescopic bones 423 and elastic elements 424, but also resets the sealing plate 41 together with the elastic element 424 during the movement of the sealing plate 41.

[0047] By precisely setting the overflow pressure threshold of the advancing element 42, defects in flow channel filling or excessive flash caused by improper overflow timing can be effectively avoided, ensuring the dimensional accuracy and surface quality of key parts of the flow channel plate. The excess material flows into the side cavity 21 under the action of the mechanism, forming a regular overflow material block, greatly simplifying the subsequent processing process and reducing the difficulty of manual polishing and the scrap rate.

[0048] In addition, the positive cavity 22 is designed with a thin wall, which greatly increases the surface area of the cavity wall and shortens the heat conduction path, allowing the internal heat to be quickly transferred to the surface. The side cavity 21 is arranged around the positive cavity 22, providing more space for the thin wall to dissipate heat. When air flows through the side cavity 21, it can carry away the heat conducted by the thin wall, accelerating the cooling of the flow channel plate. The rapid and uniform cooling process reduces the stress generated by temperature difference in the workpiece, avoiding deformation and thus improving the product forming quality.

[0049] In addition, the side cavity 21 forms a protruding structure on the edge of the flow channel plate after forming. These structures can be used as gripping points for the formed flow channel plate. Compared with the traditional smooth surface, the gripping is more stable, the workpiece is less likely to be damaged due to unstable gripping, and the workpiece is more efficient.

[0050] Due to the long-term exposure of the outer cover structure 421 to a high-temperature environment during forging and the frequent expansion and contraction with the sealing plate 41, high-temperature oxidation and other problems are prone to occur, thereby affecting the sealing performance and service life of the live plate mechanism 24. Therefore, the outer wall of the outer cover structure 421 is paved with an outer plating film 425.

[0051] As shown in Figure 10 , the outer plating film 425 can be made of diamond-like carbon film material, which has the characteristics of high-temperature resistance, corrosion resistance, and low friction coefficient. On the premise of not affecting the elastic expansion of the outer cover structure 421, it can effectively resist thermal damage during forging, and on the other hand, its chemical inertness can reduce the elastic decline or damage of the outer cover structure 421 due to corrosion, thereby ensuring the long-term stable operation of the forging die body 13 and improving the yield and production efficiency of the flow channel plate production.

[0052] Due to the gap between the inner sub-plate 31 and the overflow channel 32 and the side cavity 21, the surface of the formed flow channel plate is prone to have a protruding structure. Therefore, the end surface of the inner sub-plate 31 near the two overflow channels 32 is provided with a channel wall sealing pad 33, and the two channel wall sealing pads 33 are both L-shaped structures, and the other side of each channel wall sealing pad 33 extends into the inside of the side cavity 21.

[0053] The improvement lies in that Figure 6 , the end surface of the inner sub-plate 31 near the overflow channel 32 is provided with an L-shaped channel wall sealing pad 33, which extends into the inside of the side cavity 21. The structure can block the gap from both horizontal and vertical directions. The channel wall sealing pad 33 can tightly fit the surface of each component due to its good elasticity and flexibility, effectively filling the small gap and adapting to the vibration and deformation during mold operation. In addition, when the channel wall sealing pad 33 contacts the side wall of the sealing plate 41, a moderate friction force is generated, which limits the random sliding of the sealing plate 41 in the non-working state, so that the overflow channel 32 can be reliably closed at the beginning of forging, thereby ensuring that the solid material in the positive cavity 22 is fully compacted and improving the compactness and overall quality of the flow channel plate forging.

[0054] During forging, the sealing plate 41 needs to slide accurately in the overflow channel 32 to control the overflow of excess material. If the sliding position is out of control, it may cause uneven distribution of materials in the positive cavity 22, affecting the forming precision of the flow channel plate. Therefore, the outer wall of each of the four sealing plates 41 is fixedly provided with a closed extension plate 43, and when the sealing plate 41 is inside the overflow channel 32, the closed extension plate 43 is attached to the surface of the inner sub-plate 31.

[0055] The improvement lies in that Figure 6As shown, the closure extension plate 43 adopts a triangular cross-section design, and is in contact with the inner sub-plate 31 through the inclined limiting surface. When the closure plate 41 slides to the limit position, the displacement of the closure plate 41 can be limited, the closure plate 41 and the inner sub-plate 31 form a flat and tight fitting surface, and the internal level of the positive cavity 22 is maintained. At the same time, the triangular structure uses the geometric characteristics to greatly reduce the material usage under the premise of ensuring sufficient limiting strength, effectively reduces the weight of the closure plate 41, reduces the overall load of the closure plate 41, and enables the propulsion piece 42 to more flexibly drive the closure plate 41 to slide, thereby reducing energy loss.

[0056] During the forging process, when the closure plate 41 is driven to slide in the overflow channel 32 by the propulsion piece 42, it is difficult to completely avoid lateral deviation or shaking by relying only on the connection between the propulsion piece 42 and the closure plate 41. Especially when subjected to uneven pressure generated by high-temperature solid material extrusion, the sliding track is prone to deviation, jamming or even tilting. Therefore, four side limit rods 51 are fixedly installed on the side of the four closure plates 41 close to the inner wall of the lower die body 132. Four slide channels 52 are formed in the inner wall of the lower die body 132, and the four side limit rods 51 are located inside the four slide channels 52, respectively.

[0057] According to Figure 11 As can be seen, through the cooperation of the side limit rod 51 and the slide channel 52, the closure plate 41 is provided with stable lateral restraint, so that it always maintains a straight motion track during opening and closing, effectively avoiding deviation or tilting. Even in a high-temperature and high-pressure forging environment, the side limit rod 51 can rely on the close fit with the slide channel 52 to disperse the uneven external force received by the closure plate 41, thereby improving the sliding stability and smoothness. This not only ensures that the excess material can flow stably into the side cavity 21 through the overflow channel 32, and ensures that the material is uniformly distributed during the forming process of the runner plate, but also reduces the abnormal friction between the closure plate 41 and other parts of the mold, thereby further improving the quality and production efficiency of the runner plate forging forming.

[0058] During the runner plate forging process, the side cavity 21 will continue to heat up after collecting excess material due to the accumulation of high-temperature material and the heat transfer of the mold itself. If the heat cannot be dissipated in time, it will not only prolong the cooling and forming time of the runner plate, but also may cause local overheating and deformation of the material, affecting the product quality. Therefore, a plurality of heat dissipation channels 5 are formed in the surfaces of both ends of the upper die body 131, and the other ends of the plurality of heat dissipation channels 5 are in communication with the side cavity 21.

[0059] In combination with Figure 9As shown, the arrangement of the heat dissipation channel 5 ensures that the side cavity 21 is always in communication with the outside world, forming an efficient heat dissipation path. The outside cold air can exchange heat with the hot air in the side cavity 21 through the heat dissipation channel 5, accelerating heat dissipation, effectively reducing the temperature of the side cavity 21 and the flow channel plate, significantly shortening the cooling time compared to a closed structure, reducing the risk of deformation of the material due to high temperature, and improving the product forming precision. In addition, the channel communication with the outside world ensures that the internal pressure of the side cavity 21 is balanced with the outside world, avoiding the impact of high internal air pressure on the flap mechanism 24, ensuring that the excess material can flow smoothly into the side cavity 21. At the same time, the heat dissipation channel 5 can also assist in discharging the residual air or material volatiles in the side cavity 21 during forging, further optimizing the forging environment and ensuring the surface finish and internal quality of the flow channel plate.

[0060] Working principle:

[0061] Before forging, the lower die body 132 is fixed to the die fixing frame 11, and the upper die body 131 is suspended above by the piston rod 121 of the forging cylinder 12. The sealing plate 41 of the flap mechanism 24 is tightly attached to the overflow channel 32 of the inner sub-plate 31 under the action of the elastic element 424 in the pusher 42, and is sealed by the L-shaped channel wall sealing pad 33. The extension plate 43 ensures that the sealing plate 41 is flush with the inner sub-plate 31, and the side limiting rod 51 is positioned along the slide 52 to prevent the sealing plate 41 from shifting, ensuring the closure of the positive cavity 22.

[0062] During forging, the upper die body 131 is lowered to form a mold cavity 133 with the lower die body 132, and the hot solid metal material is poured into the positive cavity 22. At this time, the sealing plate 41 remains closed, and the material is formed in the positive cavity 22. When the mold is formed, if the material is excessive and the pressure in the cavity exceeds the threshold of the elastic element 424, the telescopic bone 423 slides in the support bone 422 against the elastic force, driving the sealing plate 41 to open the overflow channel 32, and the excess material flows into the side cavity 21 through the overflow channel 32. The symmetrical arrangement of the solid plate mechanism 23 ensures uniform pressure in the positive cavity 22, enabling the four flap mechanisms 24 to act synchronously and achieve symmetrical material transfer.

[0063] After forging is completed, the upper die body 131 is raised to open the mold, and the thin-walled design of the positive cavity 22 in combination with the enlarged heat dissipation area of the side cavity 21. Subsequently, the formed flow channel plate realizes stable grabbing through the protruding structure formed by the side cavity 21, and finally realizes high-precision and high-efficiency forging of the flow channel plate.

[0064] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A precision forging die for processing flow channel plate forgings of transportation equipment, comprising a forging die body (13), wherein the forging die body (13) is installed inside a forging hammer machine body (1), the forging hammer machine body (1) comprising a plurality of supports, wherein a die fixing frame (11) and a transverse support frame (10) are installed inside the plurality of supports, characterized in that: The forging die body (13) includes an upper die body (131) and a lower die body (132). The lower die body (132) is fixedly installed inside the die fixing frame (11). A forging cylinder (12) is fixedly installed inside the transverse support frame (10). A piston rod (121) is slidably provided inside the forging cylinder (12). The upper die body (131) is fixedly installed at the end of the piston rod (121) away from the forging cylinder (12). The upper die body (131) slides down and closes with the lower die body (132) to form a cavity (133). The cavity (133) is equipped with a cavity divider (2), which divides the cavity (133) into a main cavity (22) and two side cavities (21). The cavity divider (2) includes a movable plate mechanism (24). During the mold closing process of the upper mold body (131) and the lower mold body (132), the material is forged. The excess material forged will force the movable plate mechanism (24) to slide inside the cavity (133), so that the main cavity (22) and the side cavities (21) are connected, and the excess material is concentrated. In addition, during the material forging process, the main cavity (22) is a thin-walled structure, and the two side cavities (21) can assist the material to cool and form after forging. The cavity component (2) also includes a fixing plate mechanism (23), there are two fixing plate mechanisms (23) arranged symmetrically around the center of the cavity (133), and four movable plate mechanisms (24) are arranged, located at the ends of the two fixing plate mechanisms (23); The fixed plate mechanism (23) includes an inner sub-plate (31), the bottom of which is fixedly connected to the bottom of the inner cavity of the lower mold body (132), and both ends of the inner sub-plate (31) are provided with overflow channels (32) for connecting the main cavity (22) and the side cavity (21). The flap mechanism (24) includes a sealing plate (41) capable of sealing the overflow channel (32), the outer wall of the sealing plate (41) being in contact with the inner wall of the overflow channel (32), and a pusher (42) being connected to the side of the sealing plate (41) away from the main cavity (22), the pusher (42) being located inside the side cavity (21).

2. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 1, characterized in that: The propulsion component (42) includes four support bones (422). One end of each of the four support bones (422) is fixedly installed on the inner wall of the side cavity (21). All four support bones (422) are hollow structures. Each of the four support bones (422) has a telescopic bone (423) slidably disposed inside. Each of the four support bones (422) has an elastic element (424) disposed inside. The other end of the elastic element (424) is connected to the end of the telescopic bone (423). The side of the telescopic bone (423) away from the elastic element (424) is fixedly connected to the surface of the sealing plate (41). The surface of the four support bones (422) is covered with an outer cover structure (421). One end of the outer cover structure (421) is connected to the inner wall of the side cavity (21), and the other end of the outer cover structure (421) is connected to the outer wall of the sealing plate (41). The outer cover structure (421) is made of elastic material.

3. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 2, characterized in that: The outer wall of the outer cover structure (421) is covered with an outer coating (425).

4. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 1, characterized in that: The inner subplate (31) is equipped with a channel wall sealing gasket (33) on the end surface near the two overflow channels (32). Both channel wall sealing gaskets (33) are L-shaped structures, and the other side of both channel wall sealing gaskets (33) extends into the interior of the side cavity (21).

5. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 1, characterized in that: The outer walls of the four sealing plates (41) are fixedly equipped with closed extension plates (43). When the sealing plates (41) are located inside the overflow channel (32), the closed extension plates (43) are attached to the surface of the inner sub-plate (31).

6. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 1, characterized in that: Each of the four sealing plates (41) is fixedly installed with a side limiting rod (51) on one side of the inner wall of the lower mold body (132). The inner wall of the lower mold body (132) is provided with four slides (52), and the four side limiting rods (51) are located inside the four slides (52).

7. The precision forging die for processing the flow channel plate forging of transportation equipment according to claim 1, characterized in that: Multiple flow channels (5) are provided on both ends of the upper mold body (131), and the other end of each of the multiple flow channels (5) is connected to the side cavity (21).

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