CN117620083A - Integral die for annular part - Google Patents

Abstract

The invention discloses an annular part integral die, which belongs to the technical field of aeroengines and is used for processing an air compressor box, wherein the air compressor box comprises an inner ring, an outer ring and a hollow support plate for connecting the inner ring and the outer ring, the annular part integral die comprises a movable block assembly, a bottom plate 300 and a locking module assembly 100, the movable block assembly is arranged on the bottom plate 300, and the locking module assembly 100 is used for being matched with the bottom plate 300 to compress the movable block assembly; the loose piece assembly includes an inner ring loose piece assembly 400 and an outer ring loose piece assembly 500: the inner ring loose piece assembly 400 is arranged around the outer ring loose piece assembly 500, and a gap between the inner ring loose piece assembly and the outer ring loose piece assembly forms an inner ring forming cavity for forming an inner ring; one side of the outer ring loose piece assembly 500 away from the inner ring loose piece assembly 400 is enclosed with the lock module assembly 100 to form an outer ring forming cavity for forming an outer ring; the annular part integral mould also comprises a ceramic core 9 for forming the connecting ribs. The invention can solve the problems of complicated number of loose pieces of the whole die and low splitting efficiency.

Description

Integral die for annular part

Technical Field

The invention relates to the technical field of aeroengines, in particular to an integral die for annular parts.

Background

In the technical field of aeroengines, many parts are precision casting parts, and all the parts need to be subjected to die sinking processing. The annular part is complex in structure, particularly the annular part with a multi-ring structure, and the hollow connecting piece is further arranged, so that the processing difficulty is higher. Typically, the structure of the compressor case is shown in figure 2 of the specification, and the compressor case comprises an inner ring, an outer ring and a hollow support plate for connecting the inner ring and the outer ring, wherein the opening of the outer ring of the two hollow support plates is provided with connecting ribs, so that the processing difficulty is extremely high.

Aiming at annular parts, the traditional process adopts unit wax pattern assembling dies for processing, but the assembling dies have the problems of unstable size of the wax patterns and the like, so that the whole wax pattern dies initially appear at present.

However, the annular parts such as the compressor case have a complex structure, and the conventional integral wax mold has a plurality of problems in use: the integral wax mould structure is more complex than the unit wax mould, and the number of cavity loose pieces to be split is more, and the type is more complicated, leads to the compound die difficult to open and the operation is complicated. In particular to a complex part such as a compressor box, which is provided with a connecting rib structure at the hollow support plate, and how to process and shape the internal structure is also a great difficulty. Therefore, the die needs to be optimized from a new design, and the design process must fully consider how to split the loose pieces more reasonably and simply.

Disclosure of Invention

The invention aims to solve the problems, provides an integral die for annular parts, solves the problems of excessive number of loose pieces of the integral die and low splitting efficiency, and can be popularized and applied to multi-ring annular parts with connecting pieces such as a compressor box.

In order to achieve the above purpose, the invention adopts the following technical scheme: the integral die for the annular part is used for processing a compressor case, the compressor case comprises an inner ring, an outer ring and a plurality of hollow support plates for connecting the inner ring and the outer ring, the hollow support plates are arranged around the inner ring, connecting ribs are arranged at the opening part of at least part of the hollow support plates towards one end of the outer ring, the integral die for the annular part comprises a movable block assembly, a bottom plate and a die locking assembly, the movable block assembly is arranged on the bottom plate, and the die locking assembly is used for being matched with the bottom plate to compress the movable block assembly;

the loose piece assembly comprises an inner ring loose piece assembly and an outer ring loose piece assembly:

the inner ring movable block assembly is arranged around the outer ring movable block assembly, and a gap between the inner ring movable block assembly and the outer ring movable block assembly forms an inner ring forming cavity which is used for forming the inner ring;

one side, far away from the inner ring movable block assembly, of the outer ring movable block assembly is enclosed with the locking module to form an outer ring forming cavity, and the outer ring forming cavity is used for forming the outer ring;

the integral die for the annular part further comprises a ceramic core, wherein the ceramic core is arranged at the limiting holes of the outer ring movable block assembly and the inner ring movable block assembly and used for forming the connecting ribs.

Further, the annular part integral die further comprises an inner supporting piece and a rod piece, wherein the inner supporting piece is arranged on the bottom plate and used for supporting and limiting the inner ring movable block assembly, and the rod piece is used for being matched with the inner supporting piece to lift the inner supporting piece out.

Further, the bottom end of the rod piece is provided with external threads, the inner supporting piece is of a conical cylinder structure, and a screw hole is formed in the bottom plate of the inner supporting piece and is used for being in threaded fit with the rod piece.

Further, the mode locking subassembly still includes the external mold sub-block that annular array set up, outer lane loose piece subassembly is including being located first outer lane loose piece, second outer lane loose piece and the third outer lane loose piece that annular array set gradually in the external mold sub-block inside, the external mold sub-block with the bottom plate is connected and is used for compressing tightly spacingly first outer lane loose piece, second outer lane loose piece and third outer lane loose piece, spacing groove has all been seted up to the lateral wall of first outer lane loose piece and second outer lane loose piece, and the spacing groove concatenation on adjacent first outer lane loose piece and the lateral wall of second outer lane loose piece forms the spacing hole of outer lane, the spacing hole of outer lane is used for right the ceramic core is spacing.

Further, a wax injection runner is arranged in the outer mold partition and is communicated with an external wax injection pipe, a split flow channel is arranged in the outer mold partition and is communicated with a patch forming cavity preset in the outer mold partition, and the patch forming cavity is used for forming patches.

Further, the mold locking assembly comprises an upper cover plate and a mold locking frame, wherein the mold locking frame is used for being sleeved outside the outer mold sub-block and tightly pressing the outer mold sub-block, and the mold locking frame is connected with the bottom plate through a connecting block; the upper cover plate is arranged at the top end of the mold locking frame and used for compressing and limiting the movable block assembly.

Further, the inner ring movable block assembly comprises a cylindrical second inner ring movable block and a plurality of first inner ring movable blocks arranged in an annular array, the first inner ring movable blocks are clamped at the top of the second inner ring movable block, limiting grooves are formed in the bottom of the first inner ring movable block and the top of the second inner ring movable block, and the limiting grooves of the bottom of the first inner ring movable block and the limiting grooves of the second inner ring movable block are spliced to form a core limiting hole which is used for limiting the ceramic core.

Further, a positioning boss is arranged at the bottom of the first inner ring movable block and used for compressing and limiting the ceramic core.

Further, the ceramic core is provided with a connecting rib forming hole for forming the connecting rib, the ceramic core comprises a T-shaped positioning block and a core positioning block, the T-shaped positioning block and the core positioning block are connected with each other, the core positioning block is sequentially inserted into the outer ring limiting hole and the core limiting hole, and the T-shaped positioning block is matched with a limiting cavity preset on the outer mold partition.

Further, the first end of the core positioning block is connected with the T-shaped positioning block, the second end of the core positioning block is provided with a limiting groove, and the limiting groove is matched with a positioning boss at the bottom of the first inner ring movable block.

The invention has the beneficial effects that:

the invention aims at solving the problems that the integral die structure of the traditional annular part is more complex than the unit wax die, the number of die cavity movable blocks which need to be split is more, and the operation is complex, aiming at the annular part with a multi-ring structure, particularly the part structure of a hollow support plate with a connecting piece between an inner ring and an outer ring, such as a gas compressor box, the integral die is designed into three large blocks, a bottom plate and a locking module are adopted to play the roles of supporting and limiting, and the three movable block components are mainly adopted to complete the forming of the gas generator, namely the inner ring movable block component, the outer ring movable block component and the locking module, and the three movable block components are arranged from inside to outside, so that the integral structure is clearer, and the marking classification, the installation and the splitting are convenient.

The inner ring loose piece assembly and the outer ring loose piece assembly are understood to be positioned on two sides of the inner ring and used for forming the inner ring, and the outer ring loose piece assembly is used for forming the outer ring in a matched mode with the lock module assembly. Each loose piece subassembly is not independent work, can cooperate each other and use to reduce independent loose piece kind, reduce the quantity of loose piece, realize more compact structure.

In addition, the hollow support plate of the compressor case is also provided with a structure with connecting ribs with high processing difficulty, and the ceramic core is adopted for processing. The ceramic core is arranged at the limiting holes of the outer ring movable block assembly and the inner ring movable block assembly, the connecting ribs are formed while the hollow support plate is molded by wax injection, and the integral processing operation can be conveniently and rapidly completed without adopting a plurality of movable blocks.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time. In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of the present invention;

fig. 2 is a schematic structural view of a compressor case for processing a mold according to the present invention.

Fig. 3 is a schematic view showing a state of combining the compressor casing and the ceramic core.

FIG. 4 is a schematic view of the structure of the upper cover plate and part of the mold locking frame hidden in the preferred embodiment of the invention.

Fig. 5 is a schematic view of the structure of the present invention after the mold locking assembly is concealed.

Fig. 6 is a schematic structural view of the combined state of the inner ring loose piece assembly according to the preferred embodiment of the present invention.

FIG. 7 is a schematic illustration of the ceramic core mating with an inner ring loose piece assembly in accordance with a preferred embodiment of the present invention.

Fig. 8 is a schematic structural view of a ceramic core according to a preferred embodiment of the present invention.

Legend description: 100. a mold locking assembly; 101. an upper cover plate; 102. locking a mold frame; 200. dividing an outer mold; 201. a shunt channel; 300. a bottom plate; 400. an inner ring loose piece assembly; 401. a first inner ring loose piece; 402. a second inner ring loose piece; 4021. a limit boss; 403. a core limiting hole; 500. an outer ring loose piece assembly; 501. a first outer ring loose piece; 502. a second outer loop loose piece; 503. a third outer ring loose piece; 600. an inner support member; 700. a rod piece; 800. filling blocks; 9. a ceramic core; 901. a T-shaped positioning block; 902. a core positioning block; 903. a limit groove; 904. forming holes of the connecting ribs; 10. and (5) injecting wax into the pipe.

Detailed Description

Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.

An annular part integral die is used for processing a compressor case and comprises an inner ring, an outer ring and a plurality of hollow support plates for connecting the inner ring and the outer ring, wherein the hollow support plates are arranged around the inner ring, at least part of the hollow support plates are provided with connecting ribs towards an opening at one end of the outer ring, the annular part integral die comprises a movable block assembly, a bottom plate 300 and a locking module assembly 100, the movable block assembly is arranged on the bottom plate 300, and the locking module assembly 100 is used for being matched with the bottom plate 300 to compress the movable block assembly;

the loose piece assembly includes an inner ring loose piece assembly 400 and an outer ring loose piece assembly 500:

the inner ring loose piece assembly 400 is arranged around the outer ring loose piece assembly 500, and a gap between the inner ring loose piece assembly 400 and the outer ring loose piece assembly 500 forms an inner ring forming cavity, and the inner ring forming cavity is used for forming the inner ring;

one side of the outer ring movable block assembly 500, which is far away from the inner ring movable block assembly 400, is enclosed with the mold locking assembly 100 to form an outer ring forming cavity, and the outer ring forming cavity is used for forming the outer ring;

the integral die for the annular part further comprises a ceramic core 9, and the ceramic core 9 is arranged at the limiting holes of the outer ring movable block assembly 500 and the inner ring movable block assembly 400 and used for forming the connecting ribs.

The invention aims at the annular parts with a multi-ring structure, in particular to the part structure of a hollow support plate with connecting pieces between an inner ring and an outer ring, such as a gas compressor casing, and the integral mould is designed into three blocks, the bottom plate 300 and the locking module 100 are adopted to play a role in supporting and limiting, and three movable block assemblies are mainly adopted to complete the forming of the gas generator, namely the inner ring movable block assembly 400, the outer ring movable block assembly 500 and the locking module 100 are arranged from inside to outside, so that the integral structure is clearer, and the marking classification, the installation and the detachment are convenient. Wherein the inner ring loose piece assembly 400 and the outer ring loose piece assembly 500 are understood to be located at both sides of the inner ring and used for forming the inner ring, and the outer ring loose piece assembly 500 is also used for forming the outer ring in cooperation with the lock module assembly 100. Each loose piece subassembly is not independent work, can cooperate each other and use, wherein like mode locking subassembly 100 can play the effect of compressing tightly the loose piece subassembly from the outer lane, can also play the effect of forming outer ring shaping die cavity, reduces the loose piece kind through a loose piece subassembly multiple use, reduces the quantity of loose piece, realizes more compact structure. Meanwhile, the hollow support plate of the compressor case is also provided with a structure with connecting ribs with high processing difficulty, and the ceramic core 9 is adopted for processing. The ceramic core 9 is arranged at the limiting holes of the outer ring movable block assembly 500 and the inner ring movable block assembly 400, and forms the connecting ribs while wax injection molding the hollow support plate, so that the whole processing operation can be conveniently and rapidly completed without adopting a plurality of movable blocks.

Preferably, referring to fig. 4 and 5, the integral mold for ring parts further includes an inner support 600 and a rod 700, wherein the inner support 600 is disposed on the bottom plate 300 and is used for supporting and limiting the inner ring loose piece assembly 400, and the rod 700 is used for being matched with the inner support 600 to lift and take out the inner support 600.

It will be appreciated that the inner brace 600 is located at the most central position of the bottom plate 300, and serves to compress and limit the inner loop loose piece assembly 400 from the inside, so that the cooperation of the bottom plate 300 and the lock module assembly 100 can enhance the compression and limit of the loose piece assembly. Because the circumference of the inner support 600 is extruded by the inner ring loose piece assembly 400, the inner support 600 can be taken out by matching the rod 700 with the inner support 600 in order to facilitate the disassembly of the inner support 600.

Preferably, referring to fig. 4 and 5, the bottom end of the rod 700 is provided with external threads, the inner support 600 has a conical cylinder structure, and the bottom plate of the inner support 600 is provided with screw holes for being in threaded engagement with the rod 700.

It will be appreciated that, in order to facilitate the compression of the inner ring loose-piece assembly 400, the cross section of the inner supporting member 600 is in a shape with a wide top and a narrow bottom, that is, the outer wall of the inner supporting member 600 is inclined, but the inner supporting member 600 is not easy to be taken out. Therefore, the screw hole is started on the bottom plate of the inner support piece 600 to be matched with the screw thread at the bottom end of the rod piece 700, and the rod piece 700 can adopt a T-shaped screw rod, so that the manual operation is convenient.

It should be noted that, the screw hole on the bottom plate of the inner support 600 may be a through hole structure, and at this time, when the rod 700 is continuously screwed down, the inner support 600 may be lifted according to the principle similar to a screw nut, so that the inner support 600 may be conveniently removed manually after the inner support 600 is loosened.

Preferably, referring to fig. 1 and 4, the mold locking assembly 100 includes an upper cover plate 101 and a mold locking frame 102, wherein the mold locking frame 102 is used for sleeving the outer mold partition 200 and pressing the outer mold partition 200, and the mold locking frame 102 is connected with the bottom plate 300 through a connecting block; the upper cover plate 101 is arranged at the top end of the mold locking frame 102 and used for compressing and limiting the movable block assembly.

In a preferred embodiment of the present invention, referring to fig. 4 and 5, the mold locking assembly 100 further includes an outer mold partition 200 disposed in an annular array, the outer ring movable block assembly 500 includes a first outer ring movable block 501, a second outer ring movable block 502 and a third outer ring movable block 503 disposed in an annular array inside the outer mold partition 200 in sequence, the outer mold partition 200 is connected with the bottom plate 300 and is used for compressing and limiting the first outer ring movable block 501, the second outer ring movable block 502 and the third outer ring movable block 503, side walls of the first outer ring movable block 501 and the second outer ring movable block 502 are respectively provided with a limiting slot, and limiting slots on side walls of adjacent first outer ring movable block 501 and second outer ring movable block 502 are spliced to form an outer ring limiting hole, and the outer ring limiting hole is used for limiting the ceramic core 9.

It can be appreciated that, in order to enhance the stability of the outer ring loose-piece assembly 500, the outer sides of the first outer ring loose-piece 501, the second outer ring loose-piece 502 and the third outer ring loose-piece 503 are pressed and limited by the outer mold partition 200, and a large-area groove can be formed on the outer mold partition 200, so that the weight of the outer mold partition 200 can be reduced, and the mold locking frame 102 of the mold locking assembly 100 can be mounted in a matched and limited manner.

Preferably, referring to fig. 4, a wax injection runner is disposed in the outer mold block 200 and is communicated with the external wax injection pipe 10, a split-flow channel 201 is disposed in the outer mold block 200, the split-flow channel 201 is communicated with a patch molding cavity preset in the outer mold block 200, and the patch molding cavity is used for molding the patch 800.

It should be noted that, the patch 800 may be used for shaping a blank product, and the components required for shaping a product generally need additional mold opening, but the invention is characterized in that the external side is easy to detach, and meanwhile, the external mold partition 200 through which the wax injection runner flows is provided with the patch shaping cavity, and the patch shaping cavity is communicated with the wax injection runner through the split channel 201, so that various required patches 800 can be shaped in the external mold partition 200, which is beneficial to saving a large amount of mold opening cost and further improving the functional value of the external mold partition 200.

Preferably, referring to fig. 4, 6 and 7, the inner ring movable block assembly 400 includes a cylindrical second inner ring movable block 402 and a plurality of first inner ring movable blocks 401 disposed in an annular array, the first inner ring movable blocks 401 are clamped at the top of the second inner ring movable block 402, limiting slots are formed at the bottom of the first inner ring movable block 401 and the top of the second inner ring movable block 402, and the limiting slots of the bottom of the first inner ring movable block 401 and the limiting slots of the second inner ring movable block 402 are spliced to form a core limiting hole 403, and the core limiting hole 403 is used for limiting the ceramic core 9.

It will be appreciated that the cylindrical second inner ring segment 402 has better overall stability and provides good support for the bottom first inner ring segment 401. The first inner ring movable block 401 is a movable block arranged in an annular array, and is matched with the second inner ring movable block 402 to form a core limiting hole 403 to limit the ceramic core 9 while being convenient to disassemble.

Preferably, referring to fig. 4, 6, 7 and 8, a positioning boss is disposed at the bottom of the first inner ring movable block 401 for compressing and limiting the ceramic core 9. In the preferred embodiment of the present invention, the ceramic core 9 is provided with a connecting rib forming hole 904 for forming the connecting rib, the ceramic core 9 includes a T-shaped positioning block 901 and a core positioning block 902, the T-shaped positioning block 901 and the core positioning block 902 are connected with each other, the core positioning block 902 is sequentially inserted into the outer ring limiting hole and the core limiting hole 403, and the T-shaped positioning block 901 is matched with a preset limiting cavity on the outer mold partition 200. In a preferred embodiment of the present invention, a first end of the core positioning block 902 is connected to the T-shaped positioning block 901, a second end of the core positioning block 902 is provided with a limit groove 903, and the limit groove 903 is matched with a positioning boss at the bottom of the first inner ring movable block 401

It should be noted that, in order to facilitate the filling and ensure the molding quality, the wax injection tube 10 of the present invention is disposed on the outer cylindrical surface of the lower end of the wax mold of the compressor casing, so as to determine that the filling of the wax material is completed from bottom to top. In this process, due to the installation structure of the ceramic core 9, the T-shaped positioning block 901 of the ceramic core 9 is limited by the outer mold partition 200 to form a positioning end, and after the core positioning block 902 is inserted into the core limiting hole 403, due to the existence of the mold fit clearance, the outermost end of the core positioning block 902 is a free end (not limited by interference), the free end will shift upwards under the impact pressure of wax filling, and the left and right positions will shift due to the filling pressure of wax, so that the wall thickness difference of the hollow support plate is large, and the wall thickness requirement of the support plate cannot be ensured.

In order to solve the problem of the above-mentioned unstable positioning of the ceramic core 9 and the out-of-tolerance dimension of the thickness of the support plate, the bottom of the first inner ring movable block 401 is provided with a positioning boss for pressing the free end of the front end of the limiting core positioning block 902, so as to keep the free end of the core from shifting in the mold filling process. It should be noted that, due to the positioning boss at the bottom of the first inner ring movable block 401, a notch is formed at the top of the hollow support plate after the corresponding compressor cartridge wax pattern is formed, so that a matched patch is required, and the external mold block 200 of the present invention can additionally form the patch 800 for supplementing the notch at the bottom of the hollow support plate.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been described herein and the above examples have been presented only to assist in understanding the method of the present invention and its core ideas; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (10)

1. The integral die for processing the annular part is used for processing a compressor case, the compressor case comprises an inner ring, an outer ring and a plurality of hollow support plates for connecting the inner ring and the outer ring, wherein the hollow support plates are arranged around the inner ring, and connecting ribs are arranged at the opening part of at least part of the hollow support plates towards one end of the outer ring;

the loose piece assembly comprises an inner ring loose piece assembly (400) and an outer ring loose piece assembly (500):

the inner ring movable block assembly (400) is arranged around the outer ring movable block assembly (500), and a gap between the inner ring movable block assembly (400) and the outer ring movable block assembly (500) forms an inner ring forming cavity which is used for forming the inner ring;

one side of the outer ring movable block assembly (500) away from the inner ring movable block assembly (400) is enclosed with the mold locking assembly (100) to form an outer ring forming cavity, and the outer ring forming cavity is used for forming the outer ring;

the integral die for the annular part further comprises a ceramic core (9), wherein the ceramic core (9) is arranged at limiting holes of the outer ring movable block assembly (500) and the inner ring movable block assembly (400) and used for forming the connecting ribs.

2. The annular part integral die of claim 1 further comprising an inner support (600) and a rod (700), wherein the inner support (600) is disposed on the base plate (300) and is used for supporting and limiting the inner ring loose piece assembly (400), and the rod (700) is used for being matched with the inner support (600) to lift and take out the inner support (600).

3. The annular part integral die of claim 1, wherein the rod (700) has an external thread at the bottom end, the inner support (600) has a conical cylinder structure, and a screw hole is formed in the bottom plate of the inner support (600) for threaded engagement with the rod (700).

4. The annular part integral die according to claim 1, wherein the die locking assembly (100) comprises an outer die block (200) arranged in an annular array, the outer ring block assembly (500) comprises a first outer ring block (501), a second outer ring block (502) and a third outer ring block (503) which are sequentially arranged in the annular array inside the outer die block (200), the outer die block (200) is connected with the bottom plate (300) and used for compressing and limiting the first outer ring block (501), the second outer ring block (502) and the third outer ring block (503), limiting grooves are formed in the side walls of the first outer ring block (501) and the second outer ring block (502), and limiting grooves on the side walls of adjacent first outer ring block (501) and second outer ring block (502) are spliced to form an outer ring limiting hole, and the outer ring limiting hole is used for limiting the ceramic core (9).

5. The annular part integral die of claim 4, wherein a wax injection runner is arranged in the outer die block (200) and is communicated with an externally connected wax injection pipe (10), a split-flow channel (201) is arranged in the outer die block (200), the split-flow channel (201) is communicated with a patch forming cavity preset in the outer die block (200), and the patch forming cavity is used for forming the patch (800).

6. The annular part integral die of claim 4 wherein said die lock assembly (100) further comprises an upper cover plate (101) and a die lock frame (102), said die lock frame (102) being adapted to be sleeved outside said outer die block (200) and to compress said outer die block (200), said die lock frame (102) being connected to said base plate (300) by a connecting block; the upper cover plate (101) is arranged at the top end of the mold locking frame (102) and used for compressing and limiting the movable block assembly.

7. The annular part integral die of claim 1, wherein the inner ring movable block assembly (400) comprises a cylindrical second inner ring movable block (402) and a plurality of first inner ring movable blocks (401) arranged in an annular array, the first inner ring movable blocks (401) are clamped at the tops of the second inner ring movable blocks (402), limit grooves are formed in the bottoms of the first inner ring movable blocks (401) and the tops of the second inner ring movable blocks (402), and the limit grooves of the bottoms of the first inner ring movable blocks (401) and the limit grooves of the second inner ring movable blocks (402) are spliced to form a core limit hole (403), and the core limit hole (403) is used for limiting the ceramic core (9).

8. The annular part integral die of claim 7, wherein a positioning boss is arranged at the bottom of the first inner ring movable block (401) and used for compressing and limiting the ceramic core (9).

9. The annular part integral die according to any one of claims 1-8, wherein a connecting rib forming hole (904) is formed in the ceramic core (9) for forming the connecting rib, the ceramic core (9) comprises a T-shaped positioning block (901) and a core positioning block (902), the T-shaped positioning block (901) and the core positioning block (902) are connected with each other, the core positioning block (902) is sequentially inserted into the outer ring limiting hole and the core limiting hole (403), and the T-shaped positioning block (901) is matched with a preset limiting cavity in the outer die sub-block (200).

10. The annular part integral die of claim 9, wherein a first end of the core positioning block (902) is connected with the T-shaped positioning block (901), a second end of the core positioning block (902) is provided with a limit groove (903), and the limit groove (903) is matched with a positioning boss at the bottom of the first inner ring movable block (401).