Combined die for ultra-large cylinder casting and forging pieces

Abstract

The utility model discloses an ultra-large cylinder casting and forging combined die, and relates to the technical field of combined dies. The mold comprises a bottom plate and a second mold, a demolding mechanism is arranged on the bottom plate, and the demolding mechanism comprises a demolding assembly and a driving assembly; the demolding assembly comprises a plurality of notches formed in the left side of the second mold, the inner walls of the multiple notches are slidably connected with top plates, the right sides of the multiple top plates are fixedly connected with two springs, and the right sides of the multiple top plates are fixedly connected with first connecting columns; the right ends of the first connecting columns are fixedly connected with a connecting plate, the inner wall of the connecting plate is slidably connected with a second connecting column, and the left end of the second connecting column is fixedly connected with the right side of the second mold. And the operation difficulty is reduced, the demolding speed is increased, and therefore the demolding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of combined molds, and particularly relates to a combined mold for super-large cylindrical cast-forged parts. Background Technique

[0002] In modern industrial manufacturing, super-large cylindrical cast-forged parts are widely used in the fields of machinery, aviation, aerospace, energy, and ocean engineering. Since these cylindrical cast-forged parts usually need to withstand high loads and complex working environments, their manufacturing processes need to meet the requirements of high strength, high toughness, and high precision. Traditional casting or forging processes are difficult to meet these requirements alone. Therefore, the combined mold technology has emerged, and through the process of combining casting and forging, cylindrical cast-forged parts with excellent performance are manufactured.

[0003] Although the existing combined molds for super-large cylindrical cast-forged parts have good forming effects during the manufacturing process, there are still significant drawbacks during the demolding process. The existing molds lack a specially designed efficient demolding mechanism, resulting in more manual operation steps during the demolding process, increasing the operation difficulty and reducing the demolding efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a combined mold for super-large cylindrical cast-forged parts. By setting a demolding mechanism, the manual operation steps during the demolding process can be reduced, the operation difficulty can be lowered, the demolding speed can be increased, and thus the demolding efficiency can be improved, solving the problem that the existing molds lack a specially designed efficient demolding mechanism, resulting in more manual operation steps during the demolding process, increasing the operation difficulty, and reducing the demolding efficiency.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a combined mold for super-large cylindrical cast-forged parts, including a bottom plate and a second mold. A demolding mechanism is arranged on the bottom plate, and the demolding mechanism includes a demolding component and a driving component;

[0007] The demolding assembly includes a plurality of notches formed on the left side of the second mold. The inner walls of the plurality of notches are all slidably connected with top plates. Two springs are fixedly connected to the right sides of the plurality of top plates. The right ends of the plurality of springs and the inner walls of the plurality of notches are all fixedly connected. A first connecting column is fixedly connected to the right side of each of the plurality of top plates. The right ends of the plurality of first connecting columns are fixedly connected with a connecting plate. A second connecting column is slidably connected to the inner wall of the connecting plate. The left end of the second connecting column is fixedly connected to the right side of the second mold. A support plate is fixedly connected to the outer wall of the second connecting column. A first connecting plate is fixedly connected to the bottom surface of the support plate. Two first pulleys are rotatably connected to the front side and the rear side of the first connecting plate. Two slide rails are fixedly connected to the top surface of the bottom plate. The inner walls of the two slide rails and the outer walls of the four first pulleys are all slidably connected.

[0008] Further, the driving assembly includes a fixing plate fixedly connected to the top surface of the bottom plate. A hydraulic telescopic rod is fixedly connected to the left side of the fixing plate. The left end of the hydraulic telescopic rod is fixedly connected to the right side of the support plate.

[0009] Further, a positioning and clamping mechanism is arranged on the bottom plate. The positioning and clamping mechanism includes a positioning and clamping assembly and a first driving assembly;

[0010] The positioning and clamping assembly includes four fixing blocks fixedly connected to the mutually remote sides of the two slide rails. Two first threaded rods and two second threaded rods are rotatably connected to the inner walls of the four fixing blocks. Two clamping plates are threadedly connected to the outer walls of the two first threaded rods and the two second threaded rods. Two positioning blocks are fixedly connected to the bottom surfaces of the two clamping plates. Four rectangular grooves are formed on the top surface of the support plate. The four positioning blocks and the four rectangular grooves are all adapted to each other.

[0011] Further, the first driving assembly includes four connecting rods fixedly connected to the bottom ends of the two first threaded rods and the two second threaded rods. The ends of the four connecting rods remote from the positioning blocks are hinged to four sixth connecting rods. Motor fixing plates are fixedly connected to the front side and the rear side of the bottom plate. C-shaped fixing plates are fixedly connected to the bottom surfaces of the two motor fixing plates. Motors are fixedly connected to the inner bottom walls of the two C-shaped fixing plates. Output ends of the two motors are fixedly connected with fifth connecting rods. The left ends and the right ends of the two fifth connecting rods and the ends of the four sixth connecting rods close to the motors are all hinged.

[0012] Further, a lifting and supporting mechanism is arranged on the bottom plate. The lifting and supporting mechanism includes a lifting and supporting assembly and a second driving assembly;

[0013] The lifting and supporting assembly includes four second pulleys slidably connected to the inner wall of the slide rail. A first connecting shaft is rotatably connected to the inner wall of each of the four second pulleys. One end of the four first connecting shafts close to the rectangular groove is fixedly connected to a second connecting plate. Two connecting blocks are fixedly connected to the top surface of the second connecting plate. Two first connecting rods are hinged to the top surface of the second connecting plate. A second connecting rod is hinged to the middle of each of the two first connecting rods. A second connecting shaft is slidably connected to the inner walls of the two connecting blocks. One end of the two second connecting rods close to the second connecting plate and the outer wall of the second connecting shaft are hinged. One end of the two first connecting rods away from the second connecting plate is hinged to a fourth connecting rod. One end of the two second connecting rods away from the second connecting plate is hinged to a third connecting rod. The middle of the two third connecting rods and the middle of the two fourth connecting rods are hinged. One end of the two fourth connecting rods away from the second connecting plate is hinged to a support seat. Two connecting blocks are fixedly connected to the bottom surface of the support seat. A second connecting shaft is slidably connected to the inner walls of the two connecting blocks. The outer wall of the second connecting shaft and one end of the two third connecting rods away from the second connecting plate are hinged.

[0014] Further, the second driving assembly includes a first hydraulic telescopic rod hinged to the inner wall of the second connecting plate. One end of the first hydraulic telescopic rod close to the second connecting shaft is hinged to the outer wall of the second connecting shaft.

[0015] Further, two first support frames are fixedly connected to the top surface of the bottom plate. A first mold is fixedly connected to the inner walls of the two first support frames. A pouring port is communicated with the outer wall of the first mold.

[0016] The utility model has the following beneficial effects:

[0017] By providing a demolding mechanism, after casting is completed, the hydraulic telescopic rod is started. The hydraulic telescopic rod shortens, the support plate slides to the right, and the second mold drives the formed part to separate from the first mold. Then, the connecting plate is pressed, and the first connecting column will push the top plate to slide to the left in the slot, and the formed part is separated from the second mold. The setting of the demolding mechanism can reduce the manual operation steps in the demolding process, reduce the operation difficulty, increase the demolding speed, and thus improve the demolding efficiency.

[0018] 2. By providing a positioning and clamping mechanism, during casting, the second mold is inserted into the first mold. At this time, the support plate is at a certain position. The motor is started, and at this time, the clamping plate will move downward, and the positioning block is inserted into the rectangular groove to position and fix the position of the support plate. The setting of the positioning and clamping mechanism can assist in determining and fixing the position of the second mold, ensure that the mold will not displace during the pouring process, improve the stability during the casting process, and ensure the quality of the casting.

[0019] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic cross-sectional view of the whole of the present utility model;

[0023] Figure 3 is a schematic diagram of the structure of the demolding mechanism of the present utility model;

[0024] Figure 4 is a schematic diagram of the structure of the lifting and supporting mechanism of the present utility model;

[0025] Figure 5 is a schematic diagram of the structure of the positioning and clamping mechanism of the present utility model;

[0026] Figure 6 is a schematic bottom view of the positioning and clamping mechanism of the present utility model;

[0027] Figure 7 is the present utility model Figure 2 is an enlarged schematic diagram of part A in the present utility model.

[0028] In the drawings, the list of components represented by each reference numeral is as follows:

[0029] Bottom plate; 2, demolding mechanism; 3, positioning and clamping mechanism; 4, lifting and supporting mechanism; 11, first mold; 12, pouring port; 13, first support frame; 21, second mold; 22, notch; 23, top plate; 24, spring; 25, first connecting column; 26, connecting plate; 27, second connecting column; 28, support plate; 29, first connecting plate; 210, first pulley; 211, slide rail; 212, fixing plate; 213, hydraulic telescopic rod; 31, fixing block; 32, first threaded rod; 33, second threaded rod; 34, clamping plate; 35, positioning block; 36, rectangular groove; 37, connecting rod; 38, motor fixing plate; 39, fifth connecting rod; 310, sixth connecting rod; 311, C-shaped fixing plate; 312, motor; 41, second pulley; 42, first connecting shaft; 43, second connecting plate; 44, connecting block; 45, first connecting rod; 46, second connecting rod; 47, third connecting rod; 48, fourth connecting rod; 49, second connecting shaft; 410, support seat; 411, first hydraulic telescopic rod. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] Please refer to Figures 1-7 As shown, the present invention is a combined mold for super-large cylindrical forging and casting parts, including a bottom plate 1 and a second mold 21. A demolding mechanism 2 is arranged on the bottom plate 1, and the demolding mechanism 2 includes a demolding component and a driving component;

[0032] The demolding component includes a plurality of notches 22 opened on the left side of the second mold 21. The inner walls of the plurality of notches 22 are all slidably connected with a top plate 23. Two springs 24 are fixedly connected to the right sides of the plurality of top plates 23. The right ends of the plurality of springs 24 and the inner walls of the plurality of notches 22 are all fixedly connected. Two first connecting columns 25 are fixedly connected to the right sides of the plurality of top plates 23. The right ends of the plurality of first connecting columns 25 are fixedly connected with a connecting plate 26. The inner wall of the connecting plate 26 is slidably connected with a second connecting column 27. The left end of the second connecting column 27 is fixedly connected with the right side of the second mold 21. A support plate 28 is fixedly connected to the outer wall of the second connecting column 27. The bottom surface of the support plate 28 is fixedly connected with a first connecting plate 29. Two first pulleys 210 are rotatably connected to the front side and the rear side of the first connecting plate 29. Two slide rails 211 are fixedly connected to the top surface of the bottom plate 1. The inner walls of the two slide rails 211 and the outer walls of the four first pulleys 210 are all slidably connected.

[0033] Among them Figure 3 As shown, the driving assembly includes a fixed plate 212 fixedly connected to the top surface of the base plate 1, a hydraulic telescopic rod 213 is fixedly connected to the left side of the fixed plate 212, and the left end of the hydraulic telescopic rod 213 is fixedly connected to the right side of the support plate 28.

[0034] By providing a demoulding mechanism 2, after the casting is completed, the hydraulic telescopic rod 213 on the fixed plate 212 is started, the hydraulic telescopic rod 213 is shortened, the first pulley 210 on the first connecting plate 29 slides in the slide rail 211, the support plate 28 slides to the right, and the second mold 21 is separated from the first mold 11 with the molded part through the connection of the second connecting column 27. Then, the connecting plate 26 is pressed, and the first connecting column 25 pushes the top plate 23 to slide to the left in the groove 22, and the molded part is separated from the second mold 21. After the connecting plate 26 is released, the top plate 23 is reset under the action of the spring 24. The provision of the demoulding mechanism 2 can reduce the manual operation steps in the demoulding process, reduce the difficulty of operation, increase the demoulding speed, and thus improve the demoulding efficiency.

[0035] Among them Figure 2 , Figure 5 and Figure 6 As shown, a positioning and clamping mechanism 3 is provided on the bottom plate 1, and the positioning and clamping mechanism 3 includes a positioning and clamping component and a first driving component;

[0036] The positioning and clamping assembly includes four fixed blocks 31 fixedly connected to the sides of the two slide rails 211 away from each other, the inner walls of the four fixed blocks 31 are rotatably connected to two first threaded rods 32 and two second threaded rods 33, the outer walls of the two first threaded rods 32 and the two second threaded rods 33 are threadedly connected to two clamping plates 34, the bottom surfaces of the two clamping plates 34 are fixedly connected to two positioning blocks 35, the top surface of the support plate 28 is provided with four rectangular grooves 36, and the four positioning blocks 35 and the four rectangular grooves 36 are all adapted to each other.

[0037] Among them Figure 5 As shown, the first drive assembly includes four connecting rods 37 fixedly connected to the bottom ends of the two first threaded rods 32 and the two second threaded rods 33, and the four connecting rods 37 are hinged with four sixth connecting rods 310 at one end away from the positioning block 35, and the front and rear sides of the base plate 1 are fixedly connected with motor fixing plates 38, and the bottom surfaces of the two motor fixing plates 38 are fixedly connected with 匚-shaped fixing plates 311, and the inner bottom walls of the two 匚-shaped fixing plates 311 are fixedly connected with motors 312, and the output ends of the two motors 312 are fixedly connected with the fifth connecting rod 39, and the left and right ends of the two fifth connecting rods 39 and the ends of the four sixth connecting rods 310 close to the motor 312 are hinged.

[0038] By providing a positioning and clamping mechanism 3, during casting, the second mold 21 is inserted into the first mold 11. At this time, the support plate 28 is at a certain position. The motor 312 is started, and the fifth connecting rod 39 rotates. Through the connection of the sixth connecting rod 310, the connecting rod 37 rotates, and the first threaded rod 32 and the second threaded rod 33 also rotate in the fixed block 31. The thread directions of the first threaded rod 32 and the second threaded rod 33 are opposite. At this time, the clamping plate 34 moves downward, and the positioning block 35 is inserted into the rectangular groove 36 to position and fix the position of the support plate 28. The setting of the positioning and clamping mechanism 3 can assist in determining and fixing the position of the second mold, ensure that the mold does not displace during the pouring process, improve the stability during the casting process, and ensure the quality of the casting.

[0039] As shown in Figure 3 and Figure 4 a lifting and supporting mechanism 4 is provided on the bottom plate 1. The lifting and supporting mechanism 4 includes a lifting and supporting assembly and a second driving assembly;

[0040] The lifting and supporting assembly includes four second pulleys 41 slidably connected to the inner wall of the slide rail 211. The inner walls of the four second pulleys 41 are rotatably connected with first connecting shafts 42. One end of the four first connecting shafts 42 close to the rectangular groove 36 is fixedly connected with a second connecting plate 43. Two connecting blocks 44 are fixedly connected to the top surface of the second connecting plate 43. Two first connecting rods 45 are hinged to the top surface of the second connecting plate 43. The middle parts of the two first connecting rods 45 are hinged with second connecting rods 46. A second connecting shaft 49 is slidably connected to the inner walls of the two connecting blocks 44. One end of the two second connecting rods 46 close to the second connecting plate 43 and the outer wall of the second connecting shaft 49 are hinged. One end of the two first connecting rods 45 away from the second connecting plate 43 is hinged with a fourth connecting rod 48. One end of the two second connecting rods 46 away from the second connecting plate 43 is hinged with a third connecting rod 47. The middle parts of the two third connecting rods 47 and the middle parts of the two fourth connecting rods 48 are hinged. One end of the two fourth connecting rods 48 away from the second connecting plate 43 is hinged with a support seat 410. Two connecting blocks 44 are fixedly connected to the bottom surface of the support seat 410. A second connecting shaft 49 is slidably connected to the inner walls of the two connecting blocks 44. The outer wall of the second connecting shaft 49 and one end of the two third connecting rods 47 away from the second connecting plate 43 are hinged.

[0041] As shown in Figure 4 the second driving assembly includes a first hydraulic telescopic rod 411 hinged to the inner wall of the second connecting plate 43. One end of the first hydraulic telescopic rod 411 close to the second connecting shaft 49 is hinged with the outer wall of the second connecting shaft 49.

[0042] By providing a lifting support mechanism 4, when the formed part is pulled out with the second mold 21, since the second pulley 41 on the first connecting shaft 42 can slide in the slide rail 211, the second connecting plate 43 can be slid to a specified position. Then, the first hydraulic expansion rod 411 is activated. The first hydraulic expansion rod 411 shortens, pulling the second connecting shaft 49 to slide in the connecting block 44. The first connecting rod 45, the second connecting rod 46, the third connecting rod 47, and the fourth connecting rod 48 rotate relative to each other and push the support base 410 to rise. The support base 410 can support one end of the pulled-out formed part to prevent it from hanging in the air. The setting of the lifting support mechanism 4 improves the stability of the demolding process.

[0043] As shown in Figure 1 the figure, two first support frames 13 are fixedly connected to the top surface of the bottom plate 1. The inner walls of the two first support frames 13 are fixedly connected with a first mold 11, and a pouring port 12 is communicated with the outer wall of the first mold 11.

[0044] By providing the first mold 11 with a pouring port 12 on it, it is convenient to pour molten metal into the first mold 11. The first support frame 13 can support the first mold 11 and improve the stability of the first mold during pouring and demolding.

[0045] A specific application of this embodiment is as follows: By providing a demolding mechanism 2, after casting is completed, the hydraulic expansion rod 213 on the fixed plate 212 is activated. The hydraulic expansion rod 213 shortens, and the first pulley 210 on the first connecting plate 29 slides in the slide rail 211, and the support plate 28 slides to the right. Through the connection of the second connecting column 27, the second mold 21 drives the formed part to separate from the first mold 11. Subsequently, the connecting plate 26 is pressed, and the first connecting column 25 will push the top plate 23 to slide to the left in the notch 22, and the formed part separates from the second mold 21. After the connecting plate 26 is released, under the action of the spring 24, the top plate 23 resets. The setting of the demolding mechanism 2 can reduce the manual operation steps during the demolding process, reduce the operation difficulty, increase the demolding speed, and thus improve the demolding efficiency;

[0046] By providing a positioning and clamping mechanism 3, during casting, when the second mold 21 is inserted into the first mold 11, at this time, the support plate 28 is at a certain position. The motor 312 is activated, and the fifth connecting rod 39 rotates. Through the connection of the sixth connecting rod 310, the connecting rod 37 rotates, and the first threaded rod 32 and the second threaded rod 33 also rotate in the fixed block 31. The thread directions of the first threaded rod 32 and the second threaded rod 33 are opposite. At this time, the clamping plate 34 moves downward, and the positioning block 35 is inserted into the rectangular groove 36 to position and fix the position of the support plate 28. The setting of the positioning and clamping mechanism 3 can assist in determining and fixing the position of the second mold, ensure that the mold will not displace during the pouring process, improve the stability during the casting process, and ensure the quality of the casting;

[0047] By providing the lifting support mechanism 4, when the molded part is pulled out along with the second mold 21, since the second pulley 41 on the first connecting shaft 42 can slide in the slide rail 211, the second connecting plate 43 can be slid to the designated position. Then, the first hydraulic telescopic rod 411 is activated. The first hydraulic telescopic rod 411 shortens, pulling the second connecting shaft 49 to slide in the connecting block 44. The first connecting rod 45, the second connecting rod 46, the third connecting rod 47 and the fourth connecting rod 48 rotate relative to each other and push the support seat 410 to rise. The support seat 410 can support one end of the pulled-out molded part to prevent it from hanging in the air. The setting of the lifting support mechanism 4 improves the stability of the demolding process;

[0048] By providing the first mold 11, there is a pouring gate 12 on the first mold 11, which can facilitate the pouring of molten metal into the first mold 11. The first support frame 13 can support the first mold 11 and improve the stability of the first mold 11 during pouring and demolding.

[0049] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0050] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A combined mold for an extra-large cylindrical casting-forging, comprising a bottom plate (1) and a second mold (21), characterized in that: A demolding mechanism (2) is provided on the bottom plate (1), and the demolding mechanism (2) includes a demolding component and a driving component; The demolding component includes a plurality of notches (22) formed on the left side of the second mold (21). The inner walls of the plurality of notches (22) are all slidably connected with top plates (23). Two springs (24) are fixedly connected to the right sides of the plurality of top plates (23). The right ends of the plurality of springs (24) and the inner walls of the plurality of notches (22) are all fixedly connected. A first connecting column (25) is fixedly connected to the right side of each of the plurality of top plates (23). The right ends of the plurality of first connecting columns (25) are fixedly connected to a connecting plate (26). A second connecting column (27) is slidably connected to the inner wall of the connecting plate (26). The left end of the second connecting column (27) is fixedly connected to the right side of the second mold (21). A support plate (28) is fixedly connected to the outer wall of the second connecting column (27). A first connecting plate (29) is fixedly connected to the bottom surface of the support plate (28). Two first pulleys (210) are rotatably connected to the front side and the rear side of the first connecting plate (29). Two slide rails (211) are fixedly connected to the top surface of the bottom plate (1). The inner walls of the two slide rails (211) and the outer walls of the four first pulleys (210) are all slidably connected.

2. The modular die for super-large cylinder cast-forged parts according to claim 1, characterized in that, The driving component includes a fixing plate (212) fixedly connected to the top surface of the bottom plate (1). A hydraulic telescopic rod (213) is fixedly connected to the left side of the fixing plate (212). The left end of the hydraulic telescopic rod (213) is fixedly connected to the right side of the support plate (28).

3. The modular die for super-large cylindrical forging and casting according to claim 2, characterized in that, A positioning and clamping mechanism (3) is provided on the bottom plate (1), and the positioning and clamping mechanism (3) includes a positioning and clamping component and a first driving component; The positioning and clamping component includes four fixing blocks (31) fixedly connected to the mutually remote sides of the two slide rails (211). Two first threaded rods (32) and two second threaded rods (33) are rotatably connected to the inner walls of the four fixing blocks (31). Two clamping plates (34) are threadedly connected to the outer walls of the two first threaded rods (32) and the two second threaded rods (33). Two positioning blocks (35) are fixedly connected to the bottom surfaces of the two clamping plates (34). Four rectangular grooves (36) are formed on the top surface of the support plate (28). The four positioning blocks (35) and the four rectangular grooves (36) are all adapted to each other.

4. The combined mold for an extra-large cylindrical casting-forging according to claim 3, characterized in that, The first driving assembly includes four connecting rods (37) fixedly connected to the bottoms of two first threaded rods (32) and two second threaded rods (33). One end of the four connecting rods (37) away from the positioning block (35) is hinged to four sixth connecting rods (310). Motor fixing plates (38) are fixedly connected to the front side and the rear side of the bottom plate (1). The bottom surfaces of the two motor fixing plates (38) are fixedly connected with U-shaped fixing plates (311). The inner bottom walls of the two U-shaped fixing plates (311) are fixedly connected with motors (312). The output ends of the two motors (312) are fixedly connected with fifth connecting rods (39). The left ends and the right ends of the two fifth connecting rods (39) and one end of the four sixth connecting rods (310) close to the motor (312) are all hinged.

5. The modular die for a super-large cylindrical casting-forging as claimed in claim 4, wherein, A lifting support mechanism (4) is arranged on the bottom plate (1). The lifting support mechanism (4) includes a lifting support assembly and a second driving assembly. The lifting support assembly includes four second pulleys (41) slidably connected to the inner wall of the slide rail (211). The inner walls of the four second pulleys (41) are rotatably connected with first connecting shafts (42). One end of the four first connecting shafts (42) close to the rectangular groove (36) is fixedly connected with a second connecting plate (43). Two connecting blocks (44) are fixedly connected to the top surface of the second connecting plate (43). Two first connecting rods (45) are hinged to the top surface of the second connecting plate (43). The middle parts of the two first connecting rods (45) are hinged to second connecting rods (46). A second connecting shaft (49) is slidably connected to the inner walls of the two connecting blocks (44). One end of the two second connecting rods (46) close to the second connecting plate (43) and the outer wall of the second connecting shaft (49) are all hinged. One end of the two first connecting rods (45) away from the second connecting plate (43) is hinged to fourth connecting rods (48). One end of the two second connecting rods (46) away from the second connecting plate (43) is hinged to third connecting rods (47). The middle parts of the two third connecting rods (47) and the middle parts of the two fourth connecting rods (48) are all hinged. One end of the two fourth connecting rods (48) away from the second connecting plate (43) is hinged to a support seat (410). Two connecting blocks (44) are fixedly connected to the bottom surface of the support seat (410). A second connecting shaft (49) is slidably connected to the inner walls of the two connecting blocks (44). The outer wall of the second connecting shaft (49) and one end of the two third connecting rods (47) away from the second connecting plate (43) are all hinged.

6. The modular die for super-large cylindrical cast-forged parts according to claim 5, wherein, The second driving assembly includes a first hydraulic telescopic rod (411) hinged to the inner wall of the second connecting plate (43). One end of the first hydraulic telescopic rod (411) close to the second connecting shaft (49) and the outer wall of the second connecting shaft (49) are hinged.

7. The combined mold for an extra-large cylindrical forged and cast part according to claim 6, characterized in that, The top surface of the bottom plate (1) is fixedly connected with two first support frames (13), the inner walls of the two first support frames (13) are fixedly connected with a first mold (11), and a pouring port (12) is communicated with the outer wall of the first mold (11).

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