Casting remanufacturing device and process for aircraft engine fan outlet guide vane assembly

Abstract

The present invention relates to a casting and remanufacturing device and process for an aircraft engine fan outlet guide vane assembly. According to the layout position of the assembly blade surface, a segmented upper cavity pressure plate structure is adopted, and the blade body is used as the boundary to divide it into three parts, so that the parting line fits the surface of the blade body, ensuring that the finished product has a flat appearance and meets the size requirements; after the casting is completed, the three-stage cavity is easy to disassemble and assemble, and it is convenient to demould, and the working surface of the product has no bubbles and flash, and the yield rate is high. A semi-automatic upper cavity middle pressure plate moving assembly is adopted. When the material is poured, the displacement mechanism is driven by the cylinder to move, driving the upper cavity middle pressure plate to first move obliquely upward, and then rotate a certain angle with a point as the center of the circle and then move out horizontally, ensuring that the upper cavity middle pressure plate does not contact the blade body during the movement, avoiding damage to the blade body surface, and facilitating the demoulding of the outlet guide vane assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation maintenance, and in particular relates to a casting remanufacturing device and process for an aircraft engine fan outlet guide stator blade assembly. Background Art

[0002] With the development of high-performance aircraft engine manufacturing technology, in order to simplify and improve the thrust-to-weight ratio of the engine structure while being reliable, large-scale integrated and lightweight components are being used more and more, and the damage and repair of large-scale integrated structural components are becoming increasingly urgent. The aircraft engine fan outlet guide vane assembly plays the role of rectification, pressure expansion, and efficiency improvement, and is connected to the casing as a whole through the inner end platform of the assembly. During service, due to the coupling of multiple factors such as extrusion stress, vibration stress, micro-vibration wear, and axial aerodynamic impact, the inner end platform of the assembly will suffer varying degrees of damage and destruction. Among the various process routes for remanufacturing and repairing the inner end platform of the assembly, polyurethane material casting technology is a key component of aircraft engine manufacturers. The casting remanufacturing device is the core foundation for ensuring the dimensional accuracy of casting and process stability, which is of great significance for improving the casting quality of the fan outlet guide vane assembly.

[0003] So far, few casting remanufacturing devices for fan outlet guide vane assemblies have been found. In the doctoral dissertation "Process Parameters and Cavity Optimization Technology for Compressor Resin Blade Injection Molding", Zhao Dezhong of Northwestern Polytechnical University adopted the blade cavity envelope block design and injected the resin blade through an integrated blade mold. However, this mold is only suitable for manufacturing integral parts and cannot achieve local dimensional restoration of the assembly. It is not suitable for casting remanufacturing of the inner end platform of the fan outlet guide vane assembly.

[0004] The paper "Design of Molds for Cast Polyurethane Elastomer Products" published by Li Juanjuan from Shanxi Chemical Industry Research Institute adopts a two-petal outer membrane design with an inner cavity and inner diameter as a whole. The mold closing time is easy to control and demolding is convenient, but the two-petal structure is not suitable for the remanufacturing of the inner end platform of the outlet guide vane assembly that includes two blade profiles.

[0005] In summary, there is a large gap in the existing casting remanufacturing technology of aircraft engine fan outlet guide vane assemblies in China. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a casting remanufacturing device and process for an aircraft engine fan outlet guide vane assembly.

[0007] The present invention solves the technical problem by the following technical solutions:

[0008] A casting and remanufacturing device for an aircraft engine fan outlet guide vane assembly, characterized in that it includes a fan outlet guide vane assembly clamping system, a mold clamping system and a multi-phase adjustment system for an upper cavity middle pressure plate; when the fan outlet guide vane assembly is placed in the mold clamping system, the fan outlet guide vane assembly clamping system fixes and clamps the vane assembly; the upper cavity middle pressure plate multi-phase adjustment system moves the upper cavity middle pressure plate to the upper part of the mold clamping system to form a complete cavity required for casting.

[0009] Moreover, the fan outlet guide stator blade assembly clamping system includes a base plate, a left vertical plate, a clamping plate and a fan outlet guide stator blade assembly; the base plate is a horizontally arranged plate-like structure, the lower end of the left vertical plate is fixed to the upper surface of the base plate, the clamping plate is horizontally fixed to the upper surface of the left vertical plate, and the outer end platform of the fan outlet guide stator blade assembly is fixed to the bottom of the clamping plate by three bolts to ensure the positioning accuracy and stability of the fan outlet guide stator blade assembly during the casting process.

[0010] Moreover, the clamping system comprises a lower cavity base, an upper cavity left pressure plate, an upper cavity right pressure plate, a clamping plate, a clamping block, an upper cavity middle pressure plate and a casting assembly preheating module; the lower ends of the upper cavity left pressure plate and the upper cavity right pressure plate are respectively connected to the upper surface of the lower cavity base; the clamping plates are respectively fixed to the left and right sides of the lower cavity base with bolts to apply horizontal pressure to the upper cavity left pressure plate and the upper cavity right pressure plate; the bottom end of the clamping block is fixed to the middle of the upper surface of the lower cavity base, and the clamping surface contacts the upper surface of the upper cavity middle pressure plate; the upper surfaces of the upper cavity left pressure plate and the upper cavity right pressure plate are provided with pouring ports and exhaust grooves;

[0011] The casting assembly preheating module includes a junction box, a heating plate, a heating pipeline storage box and a heating plate base; the junction box and the heating pipeline storage box are respectively fixed on the upper surface of the base plate, and the heating plate base is fixed in a groove on the upper surface of the base plate; the upper end and the lower end of the heating plate are respectively connected to the lower surface of the lower cavity base and the upper surface of the heating plate base by bolts.

[0012] Moreover, the multi-phase adjustment system of the pressure plate in the upper cavity includes a pillar, a horizontal cylinder support, a horizontal cylinder, a horizontal screw, a support plate, a slider, a translation limit block, a linkage rod, a linkage rod movable limit plate, a knob, a phase adjustment plate, a guide rail limit plate, an upper cavity pressure plate base, a lifting limit block, an I-shaped pressure plate, a lifting cylinder bracket, a lifting cylinder, a lifting screw, a lifting plate and a guide rail; the lower ends of the pillar, the horizontal cylinder support, the lifting limit block and the I-shaped pressure plate are respectively fixed to the upper surface of the base plate; the horizontal cylinder support is connected to the horizontal cylinder and the support plate by bolts; the lower surface of the support plate is connected to the upper end of the pillar, and the upper surface is bolted The slider is fixed with the translation limit block and the lower end of the lifting cylinder bracket; the end of the horizontal lead screw is embedded in the slider, pushing the slider to move horizontally along the direction of the translation limit block slot; the linkage rod cooperates with the linkage rod moving limit plate, the slider, the phase adjustment plate, the guide rail limit plate and the slots and through holes of the upper cavity middle pressure plate in turn from top to bottom, and the phase adjustment plate slot cooperates with the lower end of the knob; the upper cavity middle pressure plate is connected to the upper cavity middle pressure plate base by bolts; when the horizontal lead screw pushes the slider to move, the linkage rod can move along the linkage rod moving limit plate slot, driving the phase adjustment plate slot to translate and rotate along the lower end of the knob, and finally realizing the horizontal movement and rotation of the upper cavity middle pressure plate;

[0013] The lower end of the lifting cylinder is fixed on the upper surface of the lifting cylinder bracket; the four through holes of the linkage rod movable limit plate and the lifting plate are respectively interference fit with the guide columns of the lifting cylinder bracket; the end of the lifting screw is embedded in the lifting plate, and the lifting plate is connected to the linkage rod movable limit plate by bolts; the upper end of the guide rail has an interference fit with the through hole of the guide rail limit plate, and the lower end has a clearance fit with the through hole of the middle pressure plate in the upper cavity; when the lifting screw moves up and down, the lifting plate, the linkage rod movable limit plate and the linkage rod move vertically along the guide column of the lifting cylinder bracket, thereby driving the middle pressure plate in the upper cavity to move obliquely upward along the guide rail.

[0014] A casting remanufacturing process for an aircraft engine fan outlet guide vane assembly, characterized in that the process steps are:

[0015] Ⅰ. Clamping stage of fan outlet guide vane assembly: In the process of removing the inner end platform of the assembly by milling, the clamping system has fixed the fan outlet guide vane assembly. The clamping plate accurately locates the blade direction of the assembly through the bolt holes used when the outer end platform of the assembly is fixed on the engine casing, thereby ensuring the remanufacturing size. Therefore, the staff first needs to transfer the clamping plate and the fan outlet guide vane assembly to the processing position of this device, so that the guide vane assembly is placed directly above the base of the lower cavity;

[0016] Ⅱ. Mold closing stage: install the left pressure plate of the upper cavity and the right pressure plate of the upper cavity to the upper surface of the base of the lower cavity in sequence, and fix the clamping plates on the left and right sides of the base of the lower cavity with bolts respectively; turn the knob to the "move" position, start the horizontal cylinder, and make the horizontal lead screw push the slider to move along the direction of the sliding groove of the translation limit block. At the same time, the linkage rod moves along the sliding groove of the linkage rod moving limit plate, driving the phase adjustment plate to complete the horizontal movement first and then the rotation with the knob as the center of the circle, and finally realize the horizontal movement of the middle pressure plate of the upper cavity to the gap between the fan outlet guide vane assembly, and then rotate a The lifting cylinder is started to pull the lifting plate and the linkage rod to move the limit plate vertically along the guide column direction through the lifting screw, and drive the middle pressure plate of the upper cavity to move obliquely downward along the guide rail until the lower end of the middle pressure plate base 30 of the upper cavity fits with the upper surface of the lifting limit block; the clamping block and the I-shaped clamping plate are fixed to the upper surface of the lower cavity base and the bottom plate respectively with bolts, and fit with the upper surface of the middle pressure plate of the upper cavity, so as to improve the stability of the middle pressure plate of the upper cavity during the casting process;

[0017] III. Casting stage: Power the junction box, preheat the casting assembly through the heating plate, and keep the overall temperature of the assembly within the range of 80-120°C; pour the molten polyurethane into the cavity from the pouring port, and obtain the inner end platform molding entity of the fan outlet guide stator assembly after vulcanization and other processes;

[0018] IV. Demolding stage: remove the clamping block, I-shaped clamping plate, clamping plate, upper cavity left pressure plate, and upper cavity right pressure plate in turn, then start the lifting cylinder to drive the middle pressure plate of the upper cavity to move obliquely upward along the guide rail until the upper surface of the middle pressure plate of the upper cavity fits with the lower end of the guide rail limit plate, turn the knob to the "rotate" position, and rotate the middle pressure plate of the upper cavity to a certain angle in the gap between the fan outlet guide stator assembly, then turn the knob to the "move" position, start the horizontal cylinder, and move the middle pressure plate of the upper cavity out of the gap between the guide stator assembly in the horizontal direction, release the connection and fixation between the fan outlet guide stator assembly and the clamping plate, and take out the remanufactured guide vane.

[0019] The advantages and beneficial effects of the present invention are:

[0020] 1. The casting and remanufacturing device and process of the aircraft engine fan outlet guide vane assembly of the present invention adopts a segmented upper cavity pressure plate structure according to the layout position of the component blade surface, and divides it into three parts with the blade body as the boundary, so that the parting line fits the surface of the blade body, ensuring that the finished product has a flat appearance and meets the size requirements. After the casting is completed, the three-stage cavity is easy to disassemble and assemble, easy to demould, and the working surface of the product has no bubbles and flash, and the finished product rate is high.

[0021] 2. The casting and remanufacturing device and process of the aircraft engine fan outlet guide stator blade assembly of the present invention adopts a semi-automatic upper cavity middle pressure plate moving assembly. After the material casting is completed, the displacement mechanism is driven by the cylinder to move, driving the upper cavity middle pressure plate to first move obliquely upward, and then rotate a certain angle with a point as the center of the circle and then move out horizontally, ensuring that the upper cavity middle pressure plate does not contact the blade body during the movement, avoiding damage to the blade body surface, and facilitating the disassembly and demolding of the outlet guide stator blade assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the clamping system of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the multi-phase adjustment system of the pressure plate in the upper cavity of the present invention;

[0025] Figure 4 Another structural schematic diagram of the multi-phase adjustment system of the pressure plate in the upper cavity of the present invention.

[0026] Description of Reference Numerals

[0027] 1-Fan outlet guide stator assembly clamping system, 2-Mold clamping system, 3-Upper cavity middle pressure plate multi-phase adjustment system, 4-Bottom plate, 5-Left vertical plate, 6-Clamping plate, 7-Fan outlet guide stator assembly, 8-Lower cavity base, 9-Upper cavity left pressure plate, 10-Upper cavity right pressure plate, 11-Clamping plate, 12-Clamping block, 13-Upper cavity middle pressure plate, 14-Junction box, 15-Heating plate, 16-Heating pipeline storage box, 17-Heating plate base, 18-Pillar , 19-horizontal cylinder support, 20-horizontal cylinder, 21-horizontal screw, 22-support plate, 23-slider, 24-translation limit block, 25-linkage rod, 26-linkage rod movement limit plate, 27-knob, 28-phase adjustment plate, 29-guide rail limit plate, 30-upper cavity middle pressure plate base, 31-lifting limit block, 32-I-shaped clamping plate, 33-lifting cylinder support, 34-lifting cylinder, 35-lifting screw, 36-lifting plate, 37-guide rail. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0029] like Figures 1 to 4As shown, the casting and remanufacturing device of the aircraft engine fan outlet guide stator blade assembly provided by the present invention has the following innovations: it includes a fan outlet guide stator blade assembly clamping system 1, a clamping system 2 and an upper cavity middle pressure plate multi-phase adjustment system 3; when the fan outlet guide stator blade assembly is placed in the clamping system 2, the fan outlet guide stator blade assembly clamping system 1 fixes and clamps the stator blade assembly; the upper cavity middle pressure plate multi-phase adjustment system 3 moves the upper cavity middle pressure plate to the upper part of the clamping system 2 to form a complete cavity required for casting.

[0030] The fan outlet guide stator blade assembly clamping system 1 includes a base plate 4, a left vertical plate 5, a clamping plate 6 and a fan outlet guide stator blade assembly 7; the base plate 4 is a horizontally arranged plate-like structure, the lower end of the left vertical plate 5 is fixed to the upper surface of the base plate 4, the clamping plate 6 is horizontally fixed to the upper surface of the left vertical plate 5, and the outer end platform of the fan outlet guide stator blade assembly 7 is fixed to the bottom of the clamping plate 6 by three bolts to ensure the positioning accuracy and stability of the fan outlet guide stator blade assembly 7 during the casting process.

[0031] The mold clamping system 2 includes a lower cavity base 8, an upper cavity left pressure plate 9, an upper cavity right pressure plate 10, a clamping plate 11, a clamping block 12, an upper cavity middle pressure plate 13 and a casting assembly preheating module; the lower ends of the upper cavity left pressure plate 9 and the upper cavity right pressure plate 10 are respectively connected to the upper surface of the lower cavity base 8; the clamping plates 11 are respectively fixed to the left and right sides of the lower cavity base 8 with bolts, and apply horizontal pressure to the upper cavity left pressure plate 9 and the upper cavity right pressure plate 10; the bottom end of the clamping block 12 is fixed to the middle part of the upper surface of the lower cavity base 8, and the clamping surface is in contact with the upper surface of the upper cavity middle pressure plate 13; the upper surfaces of the upper cavity left pressure plate 9 and the upper cavity right pressure plate 10 are provided with a pouring port 38 and an exhaust vent 39.

[0032] The casting assembly preheating module includes a junction box 14, a heating plate 15, a heating pipeline storage box 16 and a heating plate base 17; the junction box 14 and the heating pipeline storage box 16 are respectively fixed on the upper surface of the base plate 4, and the heating plate base 17 is fixed in a groove on the upper surface of the base plate 4; the upper and lower ends of the heating plate 15 are respectively connected to the lower surface of the lower cavity base 8 and the upper surface of the heating plate base 17 by bolts.

[0033] The multi-phase adjustment system 3 of the middle pressure plate of the upper cavity includes a pillar 18, a horizontal cylinder support 19, a horizontal cylinder 20, a horizontal screw 21, a support plate 22, a slider 23, a translation limit block 24, a linkage rod 25, a linkage rod movement limit plate 26, a knob 27, a phase adjustment plate 28, a guide rail limit plate 29, an upper cavity middle pressure plate base 30, a lifting limit block 31, an I-shaped clamping plate 32, a lifting cylinder support 33, a lifting cylinder 34, a lifting screw 35, a lifting plate 36 and a guide rail 37; the lower ends of the pillar 18, the horizontal cylinder support 19, the lifting limit block 31 and the I-shaped clamping plate 32 are respectively fixed on the upper surface of the base plate 4; the horizontal cylinder support 19 is connected to the horizontal cylinder 20 and the support plate 22 by bolts; the lower surface of the support plate 22 is connected to the upper end of the pillar 18, and the upper surface The lower end of the lifting cylinder bracket 33 is fixed with the translation limit block 24 and the horizontal lead screw 21; the end of the horizontal lead screw 21 is embedded in the slider 23, pushing the slider 23 to move horizontally along the direction of the slide groove of the translation limit block 24; the linkage rod 25 cooperates with the linkage rod moving limit plate 26, the slider 23, the phase adjustment plate 28, the guide rail limit plate 29 and the slide groove and through hole of the upper cavity middle pressure plate 13 from top to bottom, and the slide groove of the phase adjustment plate 28 cooperates with the lower end of the knob 27; the upper cavity middle pressure plate 13 is connected to the upper cavity middle pressure plate base 30 by bolts; when the horizontal lead screw 21 pushes the slider 23 to move, the linkage rod 25 can move along the linkage rod moving limit plate 26 slide groove, driving the phase adjustment plate 28 slide groove to translate and rotate along the lower end of the knob 27, and finally realizing the horizontal movement and rotation of the upper cavity middle pressure plate 13;

[0034] The lower end of the lifting cylinder 34 is fixed on the upper surface of the lifting cylinder bracket 33; the four through holes of the linkage rod movable limit plate 26 and the lifting plate 36 are respectively interference fit with the guide columns of the lifting cylinder bracket 33; the end of the lifting screw 35 is embedded in the lifting plate 36, and the lifting plate 36 is connected to the linkage rod movable limit plate 26 by bolts; the upper end of the guide rail 37 is interference fit with the through hole of the guide rail limit plate 29, and the lower end is gap fit with the through hole of the upper cavity middle pressure plate 13; when the lifting screw 35 moves up and down, the lifting plate 36, the linkage rod movable limit plate 26 and the linkage rod 25 move vertically along the guide column of the lifting cylinder bracket 33, thereby driving the upper cavity middle pressure plate 13 to move obliquely upward along the guide rail 37.

[0035] The invention provides a casting remanufacturing process for an aircraft engine fan outlet guide vane assembly, the innovation of which is that the process steps are as follows:

[0036] Ⅰ. Clamping stage of fan outlet guide vane assembly: The clamping system 1 of the fan outlet guide vane assembly has the general characteristics of multiple platforms and multiple processes. In the process of milling and removing the inner end platform of the assembly, the clamping system has fixed the fan outlet guide vane assembly 7. The clamping plate 6 accurately locates the direction of the assembly blade through the bolt holes used when the outer end platform of the assembly is fixed on the engine casing, thereby ensuring the remanufacturing size. Therefore, the staff first needs to transfer the clamping plate 6 and the fan outlet guide vane assembly 7 to the processing position of this device, so that the guide vane assembly is placed directly above the lower cavity base 8.

[0037] Ⅱ. Mold closing stage: install the upper cavity left pressure plate 9 and the upper cavity right pressure plate 10 to the upper surface of the lower cavity base 8 in sequence, and fix the clamping plate 11 to the left and right sides of the lower cavity base 8 with bolts. Turn the knob 27 to the "move" position, start the horizontal cylinder 20, and make the horizontal screw 21 push the slider 23 to move along the slide groove direction of the translation limit block 24. At the same time, the linkage rod 25 moves along the slide groove of the linkage rod limit plate 26, driving the phase adjustment plate 28 to complete the horizontal movement first and then the rotation with the knob as the center of the circle, and finally realize the horizontal movement of the upper cavity middle pressure plate 13 to the gap between the fan outlet guide stator assembly 7, and then rotate a certain angle, so that it does not contact the blade surface during the process of descending to the upper surface of the lower cavity base 8. Start the lifting cylinder 34, pull the lifting plate 36 and the linkage rod to move the limit plate 26 vertically along the guide column direction through the lifting screw 35, and drive the upper cavity middle pressure plate 13 to move obliquely downward along the guide rail 37 until the lower end of the upper cavity middle pressure plate base 30 is in contact with the upper surface of the lifting limit block 31. Use bolts to fix the clamping block 12 and the I-shaped clamping plate 32 to the upper surface of the lower cavity base 8 and the bottom plate 4, respectively, and fit with the upper surface of the upper cavity middle pressure plate 13 to improve the stability of the upper cavity middle pressure plate 13 during the casting process.

[0038] III. Casting stage: Power is supplied to the junction box 14, and the casting assembly is preheated by the heating plate 15, so that the overall temperature of the assembly is maintained within the range of 80-120°C. The molten polyurethane is poured into the mold cavity from the pouring port 38, and after vulcanization and other processes, the inner end platform of the fan outlet guide vane assembly is obtained.

[0039] IV. Demolding stage: remove the clamping block 12, I-shaped clamping plate 33, clamping plate 11, upper cavity left pressure plate 9, and upper cavity right pressure plate 10 in sequence. Then start the lifting cylinder 34 to drive the upper cavity middle pressure plate 13 to move obliquely upward along the guide rail 37 until the upper surface of the upper cavity middle pressure plate 13 fits with the lower end of the guide rail limit plate 29. Turn the knob 27 to the "rotate" position to rotate the upper cavity middle pressure plate 13 to a certain angle in the gap between the fan outlet guide vane assembly 7, then turn the knob 27 to the "move" position, start the horizontal cylinder 20, and move the upper cavity middle pressure plate 13 out of the gap between the guide vane assembly in the horizontal direction. Release the connection and fixation between the fan outlet guide vane assembly 7 and the clamping plate 6, and take out the remanufactured guide vanes.

[0040] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A casting and remanufacturing device for an aircraft engine fan outlet guide vane assembly, characterized in that: The invention comprises a fan outlet guide stator blade assembly clamping system (1), a mold clamping system (2) and an upper cavity middle pressure plate multi-phase adjustment system (3). When the fan outlet guide stator blade assembly is placed in the mold clamping system (2), the fan outlet guide stator blade assembly clamping system (1) fixes and clamps the stator blade assembly; the upper cavity middle pressure plate multi-phase adjustment system (3) moves the upper cavity middle pressure plate of the mold clamping system to the upper part of the mold clamping system (2) to form a complete cavity required for casting; The clamping system (2) comprises a lower cavity base (8), an upper cavity left pressure plate (9), an upper cavity right pressure plate (10), a clamping plate (11), a clamping block (12), an upper cavity middle pressure plate (13) and a casting assembly preheating module; the lower ends of the upper cavity left pressure plate (9) and the upper cavity right pressure plate (10) are respectively connected to the upper surface of the lower cavity base (8); the clamping plates (11) are respectively fixed to the left and right sides of the lower cavity base (8) by bolts to apply horizontal pressure to the upper cavity left pressure plate (9) and the upper cavity right pressure plate (10); the bottom end of the clamping block (12) is fixed to the middle of the upper surface of the lower cavity base (8), and the clamping surface is in contact with the upper surface of the upper cavity middle pressure plate (13); the upper surfaces of the upper cavity left pressure plate (9) and the upper cavity right pressure plate (10) are provided with a pouring port (38) and an exhaust groove (39); The casting assembly preheating module comprises a junction box (14), a heating plate (15), a heating pipeline storage box (16) and a heating plate base (17); the junction box (14) and the heating pipeline storage box (16) are respectively fixed on the upper surface of the base plate (4); the heating plate base (17) is fixed in a groove on the upper surface of the base plate (4); the upper end and the lower end of the heating plate (15) are respectively connected to the lower surface of the lower cavity base (8) and the upper surface of the heating plate base (17) by bolts; The multi-phase adjustment system (3) of the upper cavity middle pressure plate comprises a support (18), a horizontal cylinder support (19), a horizontal cylinder (20), a horizontal screw (21), a support plate (22), a slider (23), a translation limit block (24), a linkage rod (25), a linkage rod movement limit plate (26), a knob (27), a phase adjustment plate (28), a guide rail limit plate (29), an upper cavity middle pressure plate base (30), a lifting limit block (31), an I-shaped pressure plate The clamping plate (32), the lifting cylinder bracket (33), the lifting cylinder (34), the lifting screw (35), the lifting plate (36) and the guide rail (37); the lower ends of the pillar (18), the horizontal cylinder support (19), the lifting limit block (31) and the I-shaped clamping plate (32) are respectively fixed to the upper surface of the bottom plate (4); the horizontal cylinder support (19) is connected to the horizontal cylinder (20) and the support plate (22) by bolts; the lower surface of the support plate (22) is connected to the pillar (18) ) is connected to the upper end, and the upper surface is fixed to the translation limit block (24) and the lower end of the lifting cylinder bracket (33) by bolts; the end of the horizontal lead screw (21) is embedded in the slider (23), pushing the slider (23) to move horizontally along the slide groove direction of the translation limit block (24); the linkage rod (25) is sequentially connected with the linkage rod moving limit plate (26), the slider (23), the phase adjustment plate (28), the guide rail limit plate (29) and the slide groove and the passage of the upper cavity middle pressure plate (13) from top to bottom The holes match, the phase adjustment plate (28) slide groove matches with the lower end of the knob (27); the upper cavity middle pressure plate (13) is connected to the upper cavity middle pressure plate base (30) by bolts; when the horizontal lead screw (21) pushes the slider (23) to move, the linkage rod (25) can move along the linkage rod moving limit plate (26) slide groove, driving the phase adjustment plate (28) slide groove to translate and rotate along the lower end of the knob (27), and finally realizing the horizontal movement and rotation of the upper cavity middle pressure plate (13); The lower end of the lifting cylinder (34) is fixed to the upper surface of the lifting cylinder bracket (33); the four through holes of the linkage rod movable limit plate (26) and the lifting plate (36) are respectively interference fit with the guide pillars of the lifting cylinder bracket (33); the end of the lifting screw (35) is embedded in the lifting plate (36), and the lifting plate (36) is connected to the linkage rod movable limit plate (26) by bolts; the upper end of the guide rail (37) is interference fit with the through hole of the guide rail limit plate (29), and the lower end is clearance fit with the through hole of the upper cavity middle pressure plate (13); when the lifting screw (35) moves up and down, the lifting plate (36), the linkage rod movable limit plate (26) and the linkage rod (25) move vertically along the guide pillars of the lifting cylinder bracket (33), thereby driving the upper cavity middle pressure plate (13) to move obliquely upward along the guide rail (37).

2. The casting and remanufacturing device for the fan outlet guide vane assembly of an aircraft engine according to claim 1, characterized in that: The fan outlet guide stator blade assembly clamping system (1) comprises a base plate (4), a left side vertical plate (5), a clamping plate (6) and a fan outlet guide stator blade assembly (7), wherein the base plate (4) is a horizontally arranged plate-like structure, the lower end of the left side vertical plate (5) is fixed to the upper surface of the base plate (4), the clamping plate (6) is horizontally fixed to the upper surface of the left side vertical plate (5), and the outer end platform of the fan outlet guide stator blade assembly (7) is fixed to the bottom of the clamping plate (6) by three bolts, thereby ensuring the positioning accuracy and stability of the fan outlet guide stator blade assembly (7) during the casting process.

3. A remanufacturing process for the casting remanufacturing device for the fan outlet guide vane assembly of an aircraft engine as claimed in claim 1, characterized in that: The process steps are: Ⅰ. Clamping stage of fan outlet guide vane assembly: During the milling and removal process of the inner end platform of the assembly, the clamping system has fixed the fan outlet guide vane assembly (7), and the clamping plate (6) accurately locates the assembly blade direction through the bolt holes used when the outer end platform of the assembly is fixed to the engine casing, thereby ensuring the remanufacturing size. Therefore, the staff first needs to transfer the clamping plate (6) and the fan outlet guide vane assembly (7) to the processing position of this device, so that the guide vane assembly is placed directly above the lower cavity base (8); Ⅱ. Mold closing stage: The upper cavity left pressure plate (9) and the upper cavity right pressure plate (10) are sequentially installed on the upper surface of the lower cavity base (8), and the clamping plate (11) is fixed to the left and right sides of the lower cavity base (8) with bolts; the knob (27) is turned to the "moving" position, the horizontal cylinder (20) is started, and the horizontal lead screw (21) pushes the slider (23) to move along the sliding groove direction of the translation limit block (24), and at the same time, the linkage rod (25) moves along the sliding groove of the linkage rod moving limit plate (26), driving the phase adjustment plate (28) to complete the horizontal movement first and then the rotation with the knob as the center, and finally the upper cavity middle pressure plate (13) is first horizontally moved to the gap between the fan outlet guide stator assembly (7), and then rotated The lifting cylinder (34) is started to pull the lifting plate (36) and the linkage rod to move the limit plate (26) vertically along the guide column direction through the lifting screw (35), and drive the upper cavity middle pressure plate (13) to move obliquely downward along the guide rail (37) until the lower end of the upper cavity middle pressure plate base 30 is in contact with the upper surface of the lifting limit block (31); the clamping block (12) and the I-shaped clamping plate (32) are respectively fixed to the upper surface of the lower cavity base (8) and the bottom plate (4) with bolts, and are in contact with the upper surface of the upper cavity middle pressure plate (13), so as to improve the stability of the upper cavity middle pressure plate (13) during the casting process; III. Casting stage: power is supplied to the junction box (14), and the casting assembly is preheated by the heating plate (15) so that the overall temperature of the assembly is maintained within the range of 80-120° C.; molten polyurethane is poured into the mold cavity from the pouring port (38), and after vulcanization and other processes, a fan outlet guide vane assembly inner end platform molding entity is obtained; IV. Demolding stage: the clamping block (12), the I-shaped clamping plate (32), the clamping plate (11), the upper cavity left pressure plate (9), and the upper cavity right pressure plate (10) are removed in sequence, and then the lifting cylinder (34) is started to drive the upper cavity middle pressure plate (13) to move obliquely upward along the guide rail (37) until the upper surface of the upper cavity middle pressure plate (13) is in contact with the lower end of the guide rail limit plate (29), and the knob (27) is turned to the "rotate" position to rotate the upper cavity middle pressure plate (13) to a certain angle in the gap between the fan outlet guide vane assembly (7), and then the knob (27) is turned to the "move" position, and the horizontal cylinder (20) is started to move the upper cavity middle pressure plate (13) out of the gap between the guide vane assembly in the horizontal direction, release the connection and fixation between the fan outlet guide vane assembly (7) and the clamping plate (6), and take out the remanufactured guide vane.

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