A mold for integrally forming a gas turbine rotor blade

Abstract

The application discloses a mold for integrally forming a gas turbine rotor blade, and relates to the technical field of wax mold forming; the mold comprises a lower mold and an upper mold; through linkage demolding structures of a dial, a guide block and forming blocks, when a rotating force is applied to the dial, the forming blocks can be driven to expand along the radial direction and be separated from the wax mold, thereby replacing the traditional demolding mode of removing the forming blocks block by block according to specific procedures, greatly reducing the operation difficulty and labor intensity of workers on site, and significantly shortening the interval time between two wax mold forming operations; through linkage of a lifting assembly and a limiting assembly, the upper mold is driven to move downward and upward to accurately combine with the lower mold and stably separate from the lower mold, and the automatic demolding of the rotor blade wax mold is realized, so that the whole process is automatically completed, and the overall production efficiency of the rotor blade wax mold is further improved.

Description

Technical Field

[0001] This invention relates to the field of wax molding technology, and in particular to a mold for integral molding of gas turbine rotor blades. Background Technology

[0002] In the preparation process of rotor blade wax models, multiple molding blocks of the mold must be precisely assembled and joined together before wax injection molding. Due to the inherent characteristics of the rotor blade's spiral curved surface structure, the wax model cannot be demolded as a whole after cooling and solidifying within the mold. It is necessary to dismantle the multiple molding blocks of the mold piece by piece according to a specific procedure to successfully remove the molded wax model. This operation not only significantly extends the interval between the two wax model forming operations but also increases the difficulty of on-site operation for workers, thus restricting overall production efficiency. Furthermore, the current industry practice for preparing rotor blade wax models mostly adopts a segmented casting process. Each segment of the wax model is formed independently first, and then the segments are welded together to form a complete wax model. However, during the actual welding process, due to factors such as the precision of manual operation and the effectiveness of tooling positioning, problems such as wax model misalignment and uneven weld seams can easily occur.

[0003] To address these issues, we designed a mold for integral forming of gas turbine rotor blades. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides a mold for integral forming of gas turbine rotor blades. After the rotor blade wax mold is formed, multiple forming blocks of the mold move synchronously away from each other in a radial direction, thereby achieving interference-free separation between each forming block and the wax mold. In this way, the rotor blade wax mold can be integrally formed in one step, without the need for subsequent welding and related finishing operations.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A mold for integral forming of gas turbine rotor blades includes: a lower mold and an upper mold; the lower mold includes a housing and a hub forming mold; the hub forming mold is coaxially assembled inside the housing; The upper mold includes an assembly shell, a dial, a guide plate, and a blade forming mold. The dial is rotatably mounted on the assembly shell, and a torsion spring is installed at the rotatable joint between the two. The dial has multiple arc-shaped transmission grooves. The guide plate is fixedly connected to the assembly shell, and multiple guide grooves are provided on the end face of the guide plate. The guide grooves and transmission grooves are arranged correspondingly to each other in the vertical direction. The blade forming mold is composed of multiple forming blocks. The blade forming mold has a closed ring structure. Two adjacent forming blocks cooperate with each other to form a blade wax injection cavity. Each forming block is provided with a guide block and a transmission pin. The guide block is slidably nested inside the guide groove, and the transmission pin is correspondingly slidably nested inside the transmission groove.

[0006] In one embodiment, the lower mold is mounted on a base plate, and the upper mold is connected to a transmission column via a lifting assembly and a limiting assembly, so that the upper mold is suspended directly above the lower mold. A top plate is mounted on the base plate via four support rods, and a servo motor is mounted on the top plate and drives the transmission column to rotate. The rotation of the transmission column drives the lifting assembly to operate. The upper mold moves downward to complete the mold closing with the lower mold. The upper mold moves upward to complete the separation from the wax model and the mold splitting of the lower mold.

[0007] In one embodiment, the housing is fixed to the base plate by a bracket, so that the housing is set at a height higher than the top surface of the base plate; the hub forming mold is coaxially assembled inside the housing by a spring rod, and the initial hub forming mold extends upward out of the housing with the support of the spring rod.

[0008] In one embodiment, each end of the dial has a protrusion at its two edge positions, the top surface of the protrusion is a downward sloping surface, and the ends of the two protrusions are respectively connected to a bump, the bump extends horizontally, and the extended end is an arc-shaped surface.

[0009] In one embodiment, the lifting assembly consists of a slider, a telescopic spring, a nut, and a guide tube. One end of the slider is vertically slidably connected to the assembly shell via a preset slide rail. A telescopic spring is fixed to the bottom surface of the slider end, extending vertically downward into the assembly shell and correspondingly engaging with a protrusion. A nut is fixedly mounted on the other end of the slider, and the nut has a "C"-shaped opening structure. A guide tube is fixedly connected above the nut, and the axis of the guide tube and the nut are on the same straight line.

[0010] In one embodiment, the limiting components are composed of a limiting block, an arc-shaped groove, an abutment portion, and an elastic element. One end of the limiting block is horizontally slidably connected to the assembly housing via a pre-set slide rail on the assembly housing. An elastic element is installed at the sliding fit connection between the limiting block and the assembly housing. An abutment portion is integrally formed on the side of the limiting block facing the dial. The other end of the limiting block extends towards the lifting component. An arc-shaped groove is formed on the end face of the other end of the limiting block. The lower end face of the nut is deeper than the lower end face of the other end of the limiting block. The arc-shaped groove on the limiting block is directly opposite the "C"-shaped opening of the nut, and the groove opening is connected to the opening of the nut.

[0011] In one embodiment, the transmission column includes a first screw, a second screw, a first rotating shaft, and a second rotating shaft. Both the first and second screws have rectangular grooves along their axial directions inside. The first screw is rotatably connected to the base plate. The lower end of the second screw is connected to the first rotating shaft. The lower end of the first rotating shaft has a rectangular cross-section and extends downward into the interior of the first screw. A hydraulic spring is installed inside the first screw, and this hydraulic spring is in contact with the lower end of the first rotating shaft. The upper end of the second rotating shaft is rotatably connected to the top plate. The lower end of the second rotating shaft has a rectangular cross-section and extends downward into the interior of the second screw. The nut and guide tube are nested within the first and second screws.

[0012] In one embodiment, the upper end of the second rotating shaft is connected to the output shaft of the servo motor via a belt. When the servo motor is started, the belt drives the second screw to rotate via the second rotating shaft, and the second screw drives the first screw to rotate via the first rotating shaft.

[0013] The beneficial effects of this invention are as follows: (1) The present invention forms an integrated wax injection cavity by enclosing the upper mold, the lower mold and the blade forming mold, thereby realizing the overall wax injection molding of the rotor blade wax mold. There is no need to perform the welding process after the segmented molding, which fundamentally avoids the problems of wax mold docking deviation and uneven weld seam caused by factors such as the accuracy of manual operation and the positioning effect of tooling.

[0014] (2) The present invention uses a linkage demolding structure of dial, guide block and molding block, that is, applying rotational force to dial can drive each molding block to expand synchronously to the edge in the radial direction and separate from the wax mold. This replaces the traditional demolding method that requires demolding the molding blocks one by one according to specific procedures, which greatly reduces the difficulty and labor intensity of workers on site, and significantly shortens the process interval time between two wax mold molding operations, thereby improving the overall production efficiency of rotor blade wax mold.

[0015] (3) The present invention uses a servo motor to drive the transmission column. Through the linkage of the lifting component and the limiting component, the upper mold moves down and the lower mold closes precisely, and moves up and the lower mold separates smoothly. At the same time, it can automatically demold the rotor blade wax mold. The whole process is automated, which further improves the overall production efficiency of rotor blade wax mold. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mold structure of the present invention; Figure 3 This is an exploded view of the mold structure of the present invention; Figure 4 This is a schematic diagram of the dial structure of the present invention; Figure 5 This is a schematic diagram of the molding block of the present invention; Figure 6 This is a schematic diagram of the lifting component structure of the present invention; Figure 7 This is a schematic diagram of the limiting component structure of the present invention; Figure 8 This is a bottom view of the lifting assembly and limiting assembly of the present invention; Figure 9 This is a schematic diagram of the transmission column of the present invention; Figure 10 This is a schematic diagram of the limiting component of the present invention limiting the upper mold; Figure 11 This is a schematic diagram of the engagement between the nut and the second screw in this invention; Figure 12 This is a schematic diagram of the lifting component of the present invention driving the upper mold to move upward.

[0017] In the diagram: 1. Base plate; 11. Top plate; 12. Support rod; 2. Lower mold; 21. Shell; 22. Bracket; 23. Hub forming mold; 24. Spring rod; 3. Upper mold; 31. Assembly shell; 32. Dial; 33. Guide plate; 34. Blade forming mold; 321. Transmission groove; 322. Protrusion; 323. Thrust; 331. Guide groove; 341. Forming block; 342. Guide block; 343. Transmission pin; 4. Transmission column; 41. First screw; 42. Second screw; 43. First rotating shaft; 44. Second rotating shaft; 45. Hydraulic spring; 5. Servo motor; 51. Belt; 6. Lifting assembly; 61. Slider; 62. Telescopic spring; 63. Nut; 64. Guide tube; 7. Limiting assembly; 71. Limiting block; 72. Arc groove; 73. Abutment part; 74. Elastic element. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0019] The overall structure of the rotor blades is that multiple blades are evenly distributed radially at equal angles along the axis of the hub and are fixedly connected to the hub as an integrated structure. Please see Figure 1 The present invention discloses a mold for integral forming of gas turbine rotor blades, comprising: a base plate 1, a lower mold 2, an upper mold 3, a transmission column 4, a servo motor 5, a lifting assembly 6, and a limiting assembly 7; The lower mold 2 is mounted on the base plate 1. The upper mold 3 is connected to the transmission column 4 via the lifting assembly 6 and the limiting assembly 7, so that the upper mold 3 is suspended directly above the lower mold 2. A top plate 11 is mounted on the base plate 1 via four support rods 12. A servo motor 5 is mounted on the top plate 11 and drives the transmission column 4 to rotate. The rotation of the transmission column 4 drives the lifting assembly 6 to operate, thereby realizing the up and down movement of the upper mold 3. The upper mold 3 moves downward to complete the mold closing with the lower mold 2. The cavities of the two molds cooperate to form a casting chamber for the forming of the rotor blade wax model. The upper mold 3 moves upward to complete the mold separation with the lower mold 2, realizing the rapid separation of the rotor blade wax model from the upper mold 3. Please see Figure 2 The lower mold 2 includes a housing 21, a bracket 22, a hub forming mold 23, and a spring rod 24. The housing 21 is fixed to the base plate 1 by the bracket 22, so that the setting height of the housing 21 is higher than the top surface of the base plate 1, and the top surface of the housing 21 is set as an open surface. The hub forming mold 23 is coaxially assembled inside the housing 21 through the spring rod 24, and the hub forming mold 23 extends upward out of the open surface of the housing 21 with the support of the spring rod 24. Please see Figure 3-5 The upper mold 3 includes an assembly shell 31, a dial 32, a guide plate 33, and a blade forming mold 34. The dial 32, guide plate 33, and blade forming mold 34 are arranged sequentially from top to bottom. The dial 32 is rotatably mounted on the assembly shell 31, and a torsion spring (not shown in the figure) is installed at the rotatable joint between the two. The dial 32 has multiple arc-shaped transmission grooves 321, which are equidistantly arranged along the axis of the dial 32. Each of the two ends of the dial 32 has a protrusion 322. The top surface of the protrusion 322 is a downward sloping surface. The ends of the two protrusions 322 are respectively connected to a protrusion 323. The protrusion 323 extends horizontally, and the extended end is an arc-shaped surface. The guide plate 33 is fixedly connected to the assembly shell 31. Multiple guide grooves 331 are provided on the end face of the guide plate 33. Each guide groove 331 is radially and evenly arranged around the axis of the guide plate 33. The number of guide grooves 331 is the same as the number of transmission grooves 321. The guide grooves 331 and transmission grooves 321 are arranged corresponding to each other in the vertical direction. The blade forming mold 34 is composed of multiple forming blocks 341. The blade forming mold 34 has a closed ring structure. Two adjacent forming blocks 341 cooperate with each other to form a blade wax injection cavity. Each forming block 341 is provided with a guide block 342 and a transmission pin 343. The guide block 342 is slidably nested inside the guide groove 331 to achieve radial sliding along the guide groove 331. The transmission pin 343 is correspondingly slidably nested inside the transmission groove 321 so that the trajectory of the transmission groove 321 can drive the transmission pin 343 to move synchronously. After the upper mold 3 and the lower mold 2 complete the mold closing action, the cavity structure at the shaft center of the blade forming mold 34, the guide plate 33, and the opposite end face of the hub forming mold 23 surround each other to form the hub wax injection cavity. After the wax liquid is injected into the hub wax injection cavity and the blade wax injection cavity, and the wax liquid is fully cooled and solidified in the cavity, an integrated rotor blade wax mold is formed. After the wax injection molding is completed, a rotational force is applied to the dial 32. During the rotation, the transmission groove 321 forms a transmission action through the sliding cooperation with the transmission pin 343, which in turn drives the guide block 342 connected to the transmission pin 343 to slide radially along the guide groove 331. The forming block 341 connected to it moves synchronously with the guide block 342 towards the edge of the dial 32, so that the splicing structure of the blade forming mold 34 gradually unfolds until the forming block 341 is completely separated from the rotor blade wax mold, and the wax mold demolding operation is completed. Please see Figure 3 , Figure 6The lifting assembly 6 is provided in two sets, which are arranged opposite each other on both sides of the top surface of the assembly shell 31. Each lifting assembly 6 consists of a slider 61, a telescopic spring 62, a nut 63, and a guide tube 64. One end of the slider 61 is vertically slidably connected to the assembly shell 31 through a preset slide rail. The bottom surface of the end of the slider 61 is fixed with a telescopic spring 62, which extends vertically downward into the interior of the assembly shell 31 and forms a corresponding engagement with the protrusion 322. When the blade forming mold 3 When the multiple forming blocks 341 of 4 are in a closed state of mutual assembly, the lower end of the telescopic spring 62 abuts against the lower end of the slope of the protrusion 322; when the multiple forming blocks 341 are in an open state of mutual separation, the dial 32 rotates synchronously, so that the lower end of the telescopic spring 62 abuts against the upper end of the slope of the protrusion 322; the other end of the slider 61 is fixedly equipped with a nut 63, which adopts a "C" shaped opening structure; a guide tube 64 is fixedly connected above the nut 63, and the axis of the guide tube 64 and the nut 63 are on the same straight line; Please see Figure 3 , Figure 7 The limiting components 7 are arranged in two sets, with the two sets of limiting components 7 and the two sets of lifting components 6 arranged vertically in correspondence. Each set of limiting components 7 consists of a limiting block 71, an arc-shaped groove 72, an abutment part 73, and an elastic element 74. One end of the limiting block 71 is connected to the assembly shell 31 horizontally via a slide rail preset on the assembly shell 31, allowing the limiting block 71 to slide back and forth horizontally along the assembly shell 31. An elastic element 74 is installed at the sliding connection between the limiting block 71 and the assembly shell 31, providing an elastic restoring force for the sliding of the limiting block 71. The end of the limiting block 71 facing the dial 32 has an integrally formed abutment part 73, and the side of the abutment part 73 opposite to the protrusion 323 is an arc-shaped surface. The other end of the limiting block 71 extends toward the lifting component 6, and an arc-shaped groove 72 is formed on the end face of the other end of the limiting block 71. Please see Figure 8 The lower end face of the nut 63 is deeper than the lower end face of the other end of the limiting block 71. The arc groove 72 opened on the limiting block 71 is directly opposite to the "C"-shaped opening of the nut 63, and the groove opening of the arc groove 72 is connected to the opening of the nut 63. Please see Figure 1 , Figure 9There are two transmission columns 4, both of which are located between the bottom plate 1 and the top plate 11. Each transmission column 4 includes a first screw 41, a second screw 42, a first rotating shaft 43, and a second rotating shaft 44. The first screw 41 and the second screw 42 each have a rectangular groove along their axial direction inside. The first screw 41 is rotatably connected to the bottom plate 1. The lower end of the second screw 42 is connected to the first rotating shaft 43. The lower end of the first rotating shaft 43 has a rectangular cross-section and extends downward into the interior of the first screw 41. A hydraulic spring 45 is installed inside the first screw 41, and the hydraulic spring 45 is in contact with the lower end of the first rotating shaft 43. The upper end of the second rotating shaft 44 is rotatably connected to the top plate 11, and the lower end has a rectangular cross-section and extends downward into the interior of the second screw 42. The nut 63, guide tube 64, first screw 41, and second screw 42 are nested together to form the vertical transmission structure of the upper mold 3, realizing the lifting and lowering drive of the upper mold 3. When the upper mold 3 is on the second screw 42, the weight of the upper mold 3 itself forms a downward pressure on the second screw 42, driving the second screw 42 to move downward and fit against the end of the first screw 41. When the upper mold 3 is on the first screw 41, the hydraulic spring 45 generates an upward pushing force through the first rotating shaft 43, driving the second screw 42 to rise upward, so that the second screw 42 separates from the first screw 41. The servo motor 5 is connected to the upper end of the second rotating shaft 44 via a belt 51. When the servo motor 5 is started, the belt 51 drives the second screw 42 to rotate via the second rotating shaft 44. The second screw 42 drives the first screw 41 to rotate via the first rotating shaft 43.

[0020] Working principle of this invention: When the mold closing operation starts, the transmission column 4 rotates clockwise, and the upper mold 3 moves downward with the lifting assembly 6. When the blade forming mold 34 in the upper mold 3, which is in a separated and open state, comes into contact with the hub forming mold 23, the upper mold 3 is blocked and stops moving downward. The lifting assembly 6 continues to move downward by means of its vertical sliding fit with the assembly shell 31. Because the elastic stress of the spring rod 24 is greater than the elastic stress of the torsion spring, the telescopic spring column 62 presses down on the protrusion 322 on the dial 32, which drives the dial 32 to rotate, causing multiple forming blocks 341 to assemble with each other. Then the lifting assembly 6 continues to drive the upper mold 3 to move downward, and during the downward movement, it simultaneously presses down on the hub forming mold. 23, until the hub forming mold 23 is in contact with the bottom surface of the housing 21, and the blade forming mold 34 is nested inside the housing 21, completing the mold closing action of the upper mold 3 and the lower mold 2; during the downward movement of the upper mold 3, the first screw 41 and the second screw 42 are in contact to form a whole, and the upper mold 3 can be moved down from the second screw 42 to the lower end of the first screw 41; when the upper mold 3 is located at the lower end of the first screw 41, the hydraulic spring 45 generates an upward pushing force through the first rotating shaft 43, driving the second screw 42 to rise upward, so that the second screw 42 and the first screw 41 separate from each other, at this time the upper end of the first rotating shaft 43 is between the second screw 42 and the first screw 41; When the mold splitting operation starts, the transmission column 4 rotates counterclockwise, driving the upper mold 3 to move upward synchronously with the lifting assembly 6. As the lifting assembly 6 rises along the first screw 41, the hub forming mold 23 returns to its original position with the help of the elastic force of the spring rod 24, always maintaining a close fit with the blade forming mold 34. This action not only limits the upper mold 3, but also allows the telescopic spring rod 62 in the lifting assembly 6 to closely fit the lower end of the slope of the protrusion 322, thereby preventing the dial 32 from completing the reset through the torsion spring. At the same time, the limiting block 71 remains in contact with the wall of the first screw 41 under the elastic tension of the elastic element 74. When the lifting assembly 6 moves to the upper end of the first rotating shaft 43 via the first screw 41, the first rotating shaft 43 can no longer provide upward driving force to the lifting assembly 6. At the same time, the hub forming mold 23 rises to the maximum height via the spring rod 24, and the upward movement of the upper mold 3 stops briefly. During this period, the separation operation of the blade forming mold 34 and the rotor blade wax mold can be completed. Please see Figure 10-11The specific mechanism of the separation process is as follows: After the limiting block 71 separates from the first screw 41, the limiting block 71 slides horizontally under the elastic tension of the elastic element 74, causing the arc groove 72 on it to achieve nesting with the first rotating shaft 43. At this time, the top surface of the first screw 41 is tightly attached to the bottom surface of the limiting block 71, forming a vertical support for the limiting block 71, thereby completing the support for the upper mold 3 through the limiting block 71. The core purpose of setting this structure is: if the upper mold 3 lacks the support of the limiting block 71, the lifting assembly 6... Nut 63 will fall downwards due to gravity and engage with the first screw 41 again. Then, it will rise and separate again as the first screw 41 rotates. This causes the upper mold 3 to move up and down repeatedly during the separation of the blade forming mold 34 from the rotor blade wax mold. At this time, the hub forming mold 23 has reached its maximum height and supports the rotor blade wax mold. The repeated movement of the upper mold 3 will cause the incompletely unfolded blade forming mold 34 to damage the rotor blade wax mold. The supporting and positioning function of the limit block 71 can effectively avoid this risk. Because the lower end face depth of nut 63 is greater than the lower end face of the other end of limiting block 71, after limiting block 71 completes the support and positioning of upper mold 3, nut 63 gradually separates from first screw 41. At the same time, the upper end of guide tube 64 is nested in second screw 42, and nut 63 precisely corresponds to the upper end of first rotating shaft 43. Guide tube 64 continuously plays a limiting role during this process, ensuring that the axis of nut 63 always remains coaxial with the axes of first screw 41 and second screw 42, providing a guarantee for the connection of subsequent actions. Subsequently, dial 32 resets and rotates under the action of torsion spring. During this rotation, three actions are completed in sequence: Action 1: The dial 32 drives multiple molding blocks 341 to slide outward through the transmission groove 321 on it until the molding blocks 341 are completely separated from the rotor blade wax mold, thus realizing the automatic demolding of the rotor blade wax mold. Action 2: The protrusion 322 on the dial 32 rotates synchronously with the dial, and through the cooperation with the telescopic spring 62, it drives the nut 63 to move upward until the nut 63 engages with the lower end of the second screw 42. Action 3: The protrusion 323 on the dial 32 rotates to abut against the contact part 73, and the limiting block 71 is pushed to slide horizontally through the transmission action of the contact part 73, so that the limiting block 71 is separated from the first screw 41. The purpose of this action is to reserve space for the subsequent upward movement of the contact part 73 and avoid interference with the second screw 42. It is important to note that the core reason for using a telescopic spring 62 instead of a rigid column in this structure is that, according to the action sequence, the nut 63 needs to engage with the second screw 42 first, while the dial 32 still needs to continue rotating at a certain angle, continuously pushing the limit block 71 through the protrusion 323 to ensure that it is completely separated from the first screw 41. At this stage, the protrusion 322 needs to continue rotating with the dial 32, but the telescopic spring 62 can no longer move upward through the protrusion 322. Therefore, when the protrusion 322 continues to rotate, it will exert pressure on the telescopic spring 62, causing it to undergo compression deformation to meet the action sequence requirements. Please see Figure 12 The second screw 42 continues to drive the lifting assembly 6 to lift the upper mold 3 upward, further widening the gap between the upper mold 3 and the rotor blade wax mold, providing sufficient operating space for manual removal of the rotor blade wax mold from the hub forming mold 23; during this process, with the help of the weight of the upper mold 3 itself, the first screw 41 and the second screw 42 are recombined to form a complete transmission unit, preparing the structure for subsequent mold closing operations; When the upper mold 3 and lower mold 2 need to be closed again, the blade forming mold 34 moves down with the upper mold 3 and fits into the hub forming mold 23. The telescopic spring 62 in the lifting assembly 6 presses down the protrusion 322, and the dial 32 rotates, thereby releasing the abutment state between the protrusion 323 on the dial 32 and the abutment part 73 of the limiting block 71. Subsequently, the limiting block 71 is reset under the elastic force of the elastic element 74 and re-fits tightly against the wall of the first screw 41. The purpose of this structural design is that when the limiting block 71 moves to the upper end of the first rotating shaft 43 during the subsequent mold separation process, the limiting block 71, which is pre-fitted into the first screw 41, can respond quickly and fit against the top surface of the first screw 41, thereby providing timely support for the upper mold 3.

Claims

1. A mold for integral forming of gas turbine rotor blades, comprising: The lower mold (2) and the upper mold (3) are characterized in that: the lower mold (2) includes a housing (21) and a hub forming mold (23); the hub forming mold (23) is coaxially assembled inside the housing (21); the upper mold (3) includes an assembly shell (31), a dial (32), a guide plate (33) and a blade forming mold (34); the dial (32) is rotatably assembled on the assembly shell (31), and a torsion spring is installed at the rotatable joint between the two, and multiple arc-shaped transmission grooves (321) are provided on the dial (32); the guide plate (33) is fixedly connected to the assembly shell (31), and multiple guide plates are provided on the end face of the guide plate (33). The guide groove (331) and the transmission groove (321) are arranged correspondingly to each other in the vertical direction; the blade forming mold (34) is composed of multiple forming blocks (341) assembled together. The blade forming mold (34) has a closed ring structure as a whole. Two adjacent forming blocks (341) cooperate with each other to form a blade wax injection cavity; each forming block (341) is provided with a guide block (342), and the guide block (342) is provided with a transmission pin (343). The guide block (342) is slidably nested inside the guide groove (331), and the transmission pin (343) is correspondingly slidably nested inside the transmission groove (321).

2. The mold for integral forming of gas turbine rotor blades according to claim 1, characterized in that: The lower mold (2) is set on the base plate (1), and the upper mold (3) is connected to the transmission column (4) through the lifting component (6) and the limiting component (7), so that the upper mold (3) is suspended directly above the lower mold (2); the base plate (11) is supported by four support rods (12) above the base plate (1), and the servo motor (5) is installed on the top plate (11) and drives the transmission column (4) to rotate. The rotation of the transmission column (4) drives the lifting component (6) to operate; the upper mold (3) moves downward to complete the mold closing with the lower mold (2); the upper mold (3) moves upward to complete the separation from the wax model and the mold separation of the lower mold (2).

3. The mold for integral forming of gas turbine rotor blades according to claim 1, characterized in that: The housing (21) is fixed to the base plate (1) by the bracket (22), so that the setting height of the housing (21) is higher than the top surface of the base plate (1); the hub forming mold (23) is coaxially assembled inside the housing (21) by the spring rod (24), and the initial hub forming mold (23) extends upward out of the housing (21) with the support of the spring rod (24).

4. The mold for integral forming of gas turbine rotor blades according to claim 1, characterized in that: The dial (32) has a protrusion (322) at each of its two edge positions. The top surface of the protrusion (322) is a downward sloping surface. The ends of the two protrusions (322) are respectively connected to a protrusion (323). The protrusion (323) extends horizontally and the extended end is an arc-shaped surface.

5. The mold for integral forming of gas turbine rotor blades according to claim 2, characterized in that: The lifting assembly (6) consists of a slider (61), a telescopic spring (62), a nut (63), and a guide tube (64). One end of the slider (61) is vertically connected to the assembly shell (31) via a preset slide rail. The bottom surface of the end of the slider (61) is fixed with a telescopic spring (62), which extends vertically downward into the interior of the assembly shell (31) and forms a corresponding engagement with the protrusion (322). The other end of the slider (61) is fixedly fitted with a nut (63), which adopts a "C" shaped opening structure. A guide tube (64) is fixedly connected above the nut (63), and the axis of the guide tube (64) and the nut (63) are on the same straight line.

6. The mold for integral forming of gas turbine rotor blades according to claim 2, characterized in that: Each limiting component (7) consists of a limiting block (71), an arc groove (72), an abutment part (73), and an elastic element (74). One end of the limiting block (71) is connected to the assembly housing (31) horizontally via a slide rail pre-set on the assembly housing (31). An elastic element (74) is installed at the sliding connection between the limiting block (71) and the assembly housing (31). The end of the limiting block (71) facing the dial (32) has an integrally formed abutment part. The other end of the connecting part (73) and the limiting block (71) extend toward the lifting assembly (6). An arc groove (72) is provided on the end face of the other end of the limiting block (71). The lower end face of the nut (63) is deeper than the lower end face of the other end of the limiting block (71). The arc groove (72) on the limiting block (71) is directly opposite to the "C"-shaped opening of the nut (63), and the groove of the arc groove (72) is connected to the opening of the nut (63).

7. The mold for integral forming of gas turbine rotor blades according to claim 2, characterized in that: The transmission column (4) includes a first screw (41), a second screw (42), a first rotating shaft (43), and a second rotating shaft (44). The first screw (41) and the second screw (42) are both provided with rectangular grooves along the axial direction. The first screw (41) is rotatably connected to the base plate (1). The lower end of the second screw (42) is connected to the first rotating shaft (43). The lower end of the first rotating shaft (43) has a rectangular cross section and extends downward into the interior of the first screw (41). The first screw (41) is provided with a hydraulic spring (45), which is in contact with the lower end of the first rotating shaft (43). The upper end of the second rotating shaft (44) is rotatably connected to the top plate (11). The lower end has a rectangular cross section and extends downward into the interior of the second screw (42). The nut (63) and the guide tube (64) are nested with the first screw (41) and the second screw (42).

8. The mold for integral forming of gas turbine rotor blades according to claim 7, characterized in that: The upper end of the second rotating shaft (44) is connected to the output shaft of the servo motor (5) via a belt (51). When the servo motor (5) is started, the belt (51) drives the second screw (42) to rotate via the second rotating shaft (44), and the second screw (42) drives the first screw (41) to rotate via the first rotating shaft (43).

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