Forming die for disc-shaped thin-wall composite product

Abstract

The invention discloses a disc-shaped thin-wall composite material product forming mold which is characterized in that a mold body is provided with a forming cavity, and the outer wall of a disc-shaped thin-wall composite material product is tightly attached to the cavity wall of the forming cavity; the limiting column is installed in the forming cavity, and the hole wall of the through hole can be tightly attached to the outer side wall of the limiting column. The limiting ring sleeves the limiting column, and the lower ring surface of the limiting ring can cling to the upper surface of the metal gasket; the limiting disc can be coaxially arranged above the limiting column in a buckled mode, a plurality of notches are formed in the limiting disc, and a reinforcing rib plate is embedded in each notch. Through the design of the forming cavity, the limiting column and the limiting ring, a through hole in the disc-shaped thin-wall composite product can be reliably formed; the limiting ring can tightly press the periphery of the through hole, and the prepreg at the through hole can be uniformly pressed without edge warping during hot-pressing curing; the disc-shaped thin-wall composite material product is uniformly pressed, good in quality and high in percent of pass; the reinforcing rib plate on the disc-shaped thin-wall composite material product can be quickly and effectively positioned during installation.

Description

Technical Field

[0001] The present invention relates to the field of thin-walled part forming molds, and more specifically to a forming mold for a disc-shaped thin-walled composite product. Background Art

[0002] The mounting disc assembly in the propeller structure includes a mounting disc outer shell and a mounting disc sub-assembly. The mounting disc sub-assembly is a disc-shaped thin-walled structural composite product with a complex structure and large curvature changes. For composite products such as the above-mentioned disc-shaped thin-walled ones, special consideration needs to be given to the uniformity of pressure application and the rationality of mold structure design. These two points have a great impact on both the appearance quality and internal quality of the product.

[0003] The existing forming molds for the above-mentioned disc-shaped thin-walled composite products have complex structures and unreasonable designs, with poor quality stability of the products, and the products cannot be smoothly demolded after hot pressing and curing.

[0004] Therefore, how to provide a forming mold for a disc-shaped thin-walled composite product that can overcome the above problems is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a forming mold for a disc-shaped thin-walled composite product.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A forming mold for a disc-shaped thin-walled composite product, a through hole is centrally opened at the closed end of the disc-shaped thin-walled composite product, a metal washer and a plurality of reinforcing rib plates are provided on the inner wall of the closed end of the disc-shaped thin-walled composite product, the metal washer is coaxially arranged outside the through hole, and the plurality of reinforcing rib plates are uniformly arranged along the circumferential direction of the disc-shaped thin-walled composite product, including:

[0008] A mold body, the mold body is horizontally arranged and a forming cavity is provided on its upper end surface, and the outer wall of the disc-shaped thin-walled composite product can be closely attached to the cavity wall of the forming cavity;

[0009] A limiting member, which includes a limiting post, a limiting ring and a limiting disc. The limiting post is coaxially and detachably fixed in the forming cavity, and the inner wall of the through hole can be in close contact with the outer wall of the limiting post. The limiting ring is coaxially and tightly sleeved on the limiting post, and the lower ring surface of the limiting ring can be in close contact with the upper surface of the metal washer. The limiting disc can be coaxially buckled above the limiting post, and the inner bottom surface of the limiting disc can be in close contact with the upper end wall of the limiting post. A plurality of notches penetrating through its end wall are formed on the limiting disc, and the plurality of notches are evenly arranged along the circumferential direction of the limiting disc. Each of the notches is tightly embedded with one of the reinforcing rib plates.

[0010] As can be seen from the above technical solutions, compared with the prior art, the present invention discloses a forming mold for a disc-shaped thin-walled composite material product. By designing the forming cavity and detachably fixing a limiting post in the forming cavity, the disc-shaped thin-walled composite material product can be reliably formed. By designing the limiting ring, the limiting ring can press the periphery of the through hole. When the disc-shaped thin-walled composite material product is hot-pressed and cured, the prepreg at the through hole can be evenly pressed and will not curl up, and the metal washer can be reliably fixed in place. The limiting ring can also play a role in locally pressing the disc-shaped thin-walled composite material product. When the disc-shaped thin-walled composite material product is integrally hot-pressed and cured, the disc-shaped thin-walled composite material product is evenly pressed, and the product quality is good and the qualification rate is high. By designing the limiting disc, notches are provided on the limiting disc, and the reinforcing rib plates on the disc-shaped thin-walled composite material product can be quickly and effectively positioned during installation.

[0011] Preferably, it further includes a demolding ring, which is detachably and tightly fixed to the upper end surface of the mold body. The demolding ring is coaxially arranged with the forming cavity. A ring-shaped connecting member is integrally formed coaxially at the open end of the disc-shaped thin-walled composite material product, and the outer wall of the connecting member can be in close contact with the inner ring surface and the upper top surface of the demolding ring. The demolding ring can be used to demold the disc-shaped thin-walled composite material product.

[0012] Preferably, it further includes a connecting bolt 1 and a tightening bolt 1. A stepped hole 1 and a threaded hole 1 penetrating through its upper and lower top surfaces are formed on the demolding ring. A threaded blind hole 1 is formed on the upper end surface of the mold body. One end of the connecting bolt 1 passes through the stepped hole 1 and is screwed into the threaded blind hole 1, and the nut of the connecting bolt 1 is embedded in the stepped hole 1. The tightening bolt 1 is screwed into the threaded hole 1, and the end of the tightening bolt 1 away from its nut can abut against the upper end surface of the mold body. The demolding ring can be reliably connected to the mold body. By screwing the tightening bolt 1, the disc-shaped thin-walled composite material product can be smoothly removed from the forming cavity.

[0013] Preferably, the threaded length of the first tightening bolt is greater than the thickness of the stripping ring. There are multiple first stepped holes and multiple first threaded holes. The multiple first stepped holes are evenly arranged along the circumferential direction of the stripping ring, and the multiple first threaded holes are evenly arranged along the circumferential direction of the stripping ring. The disc-shaped thin-walled composite product is uniformly stressed and not damaged during the demolding process.

[0014] Preferably, it further includes a second connecting bolt. A circular ring is integrally formed coaxially on the outer wall of the limiting column near its lower end. The lower end surface of the circular ring is flush with the lower end surface of the limiting column. A circular groove is coaxially formed on the bottom wall of the forming cavity. The circular ring is embedded in the circular groove. The outer wall of the closed end of the disc-shaped thin-walled composite product can be in close contact with the upper end surface of the circular ring. A second threaded blind hole is formed on the bottom wall of the circular groove. A second stepped hole penetrating the upper and lower end surfaces of the limiting column is formed on the limiting column. One end of the second connecting bolt passes through the second stepped hole and is screwed with the second threaded blind hole. The nut of the second connecting bolt is embedded in the second stepped hole. The limiting column can be reliably detachably fixed to the mold body.

[0015] Preferably, it further includes a second tightening bolt. A second threaded hole penetrating the upper and lower end surfaces of the limiting column is formed on the limiting column. One end of the second tightening bolt is screwed into the second threaded hole. The end of the second tightening bolt away from its nut can abut against the bottom wall of the circular groove. A relief hole is formed on the bottom surface of the limiting disc. The second tightening bolt is located in the relief hole. The second tightening bolt can be used to demold the disc-shaped thin-walled composite product.

[0016] Preferably, a plurality of handles are uniformly fixed on the outer bottom surface of the limiting disc. This design facilitates the worker to disassemble and assemble the limiting disc.

[0017] Preferably, it further includes a support. The lower end of the mold body is fixed to the support. The mold body can be reliably placed and fixed. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0019] Figure 1 is an overall axonometric view of a forming mold for a disc-shaped thin-walled composite product;

[0020] Figure 2 is Figure 1 a partial enlarged view of part A in

[0021] Figure 3 It is a partial exploded axonometric schematic diagram of a forming die for a disc-shaped thin-walled composite product;

[0022] Figure 4 It is a partial axonometric Figure 1 ;

[0023] Figure 5 It is a partial axonometric Figure 2 ;

[0024] Figure 6 It is an axonometric view of a disc-shaped thin-walled composite product.

[0025] In the figure:

[0026] 01 is a disc-shaped thin-walled composite product, 010 is a through hole, 02 is a metal washer, 03 is a reinforcing rib plate, 04 is a die body, 040 is a forming cavity, 0400 is a circular groove, 05 is a limit post, 050 is a ring, 06 is a limit ring, 07 is a limit disc, 070 is a notch, 08 is a demolding ring, 09 is a connecting bolt I, 10 is a tightening bolt I, 11 is a connecting bolt II, 12 is a tightening bolt II, 13 is a handle, 14 is a support, 15 is a positioning pin. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The present invention discloses a forming die for a disc-shaped thin-walled composite product. By designing the forming cavity 040 and detachably fixing the limit post 05 in the forming cavity 040, the disc-shaped thin-walled composite product 01 can be reliably formed;

[0029] By designing the limit ring 06, the limit ring 06 can press the periphery of the through hole 010. When the disc-shaped thin-walled composite product 01 is hot-pressed and cured, the prepreg at the through hole 010 can be evenly pressed without warping, and the metal washer 02 can be reliably fixed in place; the limit ring 06 can also play a role in locally pressurizing the disc-shaped thin-walled composite product 01. When the disc-shaped thin-walled composite product 01 is integrally hot-pressed and cured, the disc-shaped thin-walled composite product 01 is evenly pressed, and the product quality is good and the qualified rate is high;

[0030] By designing the limit disk 07, a notch 070 is provided on the limit disk 07, and the reinforcing rib plate 03 on the disk-shaped thin-walled composite product 01 can be quickly and effectively positioned during installation;

[0031] By designing the stripping ring 08 and the first tightening bolt 10, after the disk-shaped thin-walled composite product 01 is hot-pressed, the stripping ring 08 and the first tightening bolt 10 can be used to strip the disk-shaped thin-walled composite product 01;

[0032] By designing the ring 050 and the second tightening bolt 12, when the second tightening bolt 12 is screwed, the ring 050 moves upward, and the ring 050 can also eject the disk-shaped thin-walled composite product 01 from the forming cavity 040. When the first tightening bolt 10 cannot be effectively demolded, the second tightening bolt 12 can be screwed.

[0033] Embodiment

[0034] See Appendix Figures 1-6 It is a schematic diagram of the overall and partial structures of an embodiment of the present invention. The present invention specifically discloses a forming mold for a disk-shaped thin-walled composite product. The disk-shaped thin-walled composite product 01 is formed by laying multiple layers of prepreg mixed with an adhesive and pressurizing and curing; a circular through hole 010 is provided in the center of the closed end of the disk-shaped thin-walled composite product 01. The inner wall of the closed end of the disk-shaped thin-walled composite product 01 is provided with a metal gasket 02 and multiple reinforcing rib plates 03. The metal gasket 02 is coaxially arranged outside the through hole 010, and the multiple reinforcing rib plates 03 are evenly arranged along the circumference of the disk-shaped thin-walled composite product 01;

[0035] The forming mold includes:

[0036] The mold body 04, the mold body 04 is horizontally arranged and its upper end surface is concave to form a forming cavity 040, and the outer wall of the disk-shaped thin-walled composite product 01 can be closely attached to the cavity wall of the forming cavity 040;

[0037] The limiting member, the limiting member includes a limiting column 05, a limiting ring 06 and a limiting disk 07. The cross-section of the limiting column 05 is circular, and the limiting column 05 is coaxially and detachably fixed in the forming cavity 040. The hole wall of the through hole 010 can be closely attached to the outer side wall of the limiting column 05. When laying the prepreg in the forming cavity 040, due to the existence of the limiting column 05, the through hole 010 of the disk-shaped thin-walled composite product 01 can be defined;

[0038] The limiting ring 06 is coaxially and tightly sleeved on the limiting post 05. The lower ring surface of the limiting ring 06 can be in close contact with the upper surface of the metal washer 02. After the prepreg layer in the forming cavity 040 is laid, the metal washer 02 is placed, and the limiting ring 06 is pressed above the metal washer 02. Moreover, the inner side surface of the limiting ring 06 is aligned with the hole wall of the through hole 010. When pressurized curing is carried out, the disc-shaped thin-walled composite product 01 will not curl at the position of the through hole 010. At the same time, the metal washer 02 can also be accurately installed in place;

[0039] The limiting disc 07 can be coaxially buckled above the limiting post 05. The inner bottom surface of the limiting disc 07 can be in close contact with the upper end wall of the limiting post 05. A plurality of through slits 070 are formed in the end wall of the limiting disc 07, and the plurality of through slits 070 are evenly arranged along the circumferential direction of the limiting disc 07. A reinforcing rib plate 03 can be tightly embedded in each through slit 070;

[0040] The reinforcing rib plate 03 includes a foam block and multiple layers of prepreg coated on the outer surface of the foam block. After the prepreg layer in the forming cavity 040 is laid, the limiting disc 07 is buckled on the limiting post 05, and then the foam block coated with multiple layers of prepreg is placed in the through slit 070. Subsequently, the limiting disc 07 is removed, and the subsequent pressurized curing process is carried out. During the pressurized curing process, the foam block and the multiple layers of prepreg coated on its surface will be consolidated with the prepreg in the forming cavity 040. The limiting disc 07 mainly plays a positioning role in the production of the reinforcing rib plate 03.

[0041] More specifically, a demolding ring 08 is further included. The demolding ring 08 is detachably and closely fixed to the upper end surface of the mold body 04. The demolding ring 08 is coaxially arranged with the forming cavity 040. An annular connecting member is integrally formed at the open end of the disc-shaped thin-walled composite product 01 coaxially. The outer wall of the connecting member can be in close contact with the inner ring surface and the upper top surface of the demolding ring 08; when the prepreg in the forming cavity 040 is laid, prepreg is laid on both the inner ring surface and the upper top surface of the demolding ring 08. The prepreg corresponding to the inner ring surface and the upper top surface of the demolding ring 08 forms the above-mentioned connecting member after curing. After the pressurized curing is completed, the disc-shaped thin-walled composite product 01 can be demolded by using the connecting member and the demolding ring 08. After the disc-shaped thin-walled composite product 01 provided with the connecting member is taken out of the forming cavity 040, the connecting member connected to the disc-shaped thin-walled composite product 01 is cut off.

[0042] More specifically, it further includes a first connecting bolt 09 and a first tightening bolt 10. A first stepped hole and a first threaded hole penetrating through the upper and lower top surfaces of the stripping ring 08 are provided. A threaded blind hole is provided on the upper end surface of the mold body 04. One end of the first connecting bolt 09 passes through the first stepped hole and is screwed into the threaded blind hole. The nut of the first connecting bolt 09 is embedded in the first stepped hole, and the stripping ring 08 and the mold body 04 can be reliably fixed. The first tightening bolt 10 is screwed into the first threaded hole, and the end of the first tightening bolt 10 away from its nut can abut against the upper end surface of the mold body 04. After the pressure curing is completed, the first connecting bolt 09 is removed, and the first tightening bolt 10 is rotated, and the stripping ring 08 is separated from the mold body 04. At the same time, due to the existence of the connecting member, the disc-shaped thin-walled composite product 01 will also be removed from the forming cavity 040.

[0043] The threaded length of the first tightening bolt 10 is greater than the thickness of the stripping ring 08. There are multiple first stepped holes and multiple first threaded holes. The multiple first stepped holes are evenly arranged along the circumferential direction of the stripping ring 08, and the multiple first threaded holes are evenly arranged along the circumferential direction of the stripping ring 08. The disc-shaped thin-walled composite product 01 can be stably demolded.

[0044] More specifically, it further includes a second connecting bolt 11. A circular ring 050 is integrally formed coaxially on the outer wall of the limiting column 05 near its lower end. The lower end surface of the circular ring 050 is flush with the lower end surface of the limiting column 05. A circular groove 0400 is coaxially provided on the bottom wall of the forming cavity 040. The circular ring 050 is embedded in the circular groove 0400. The outer wall of the closed end of the disc-shaped thin-walled composite product 01 can be closely attached to the upper end surface of the circular ring 050. The circular ring 050 and the limiting ring 06 can jointly clamp the end wall of the closed end of the disc-shaped thin-walled composite product 01. Moreover, the design of the circular ring 050 helps the subsequent demolding of the disc-shaped thin-walled composite product 01.

[0045] A threaded blind hole is provided on the bottom wall of the circular groove 0400. A second stepped hole penetrating through the upper and lower end surfaces of the limiting column 05 is provided. One end of the second connecting bolt 11 passes through the second stepped hole and is screwed into the threaded blind hole. The nut of the second connecting bolt 11 is embedded in the second stepped hole. The limiting column 05 can be reliably fixed in the forming cavity 040.

[0046] More specifically, it further includes a second tightening bolt 12. A second threaded hole penetrating the upper and lower end faces is provided on the limiting post 05. One end of the second tightening bolt 12 is screwed into the second threaded hole. The end of the second tightening bolt 12 away from its nut can abut against the bottom wall of the circular groove 0400. A relief hole is provided on the bottom surface of the limiting disk 07. The second tightening bolt 12 is located in the relief hole. The threaded length of the second tightening bolt 12 is greater than the height of the limiting post 05. After the pressure curing is completed, the second connecting bolt 11 can be removed and the second tightening bolt 12 can be rotated. The lower end of the limiting post 05 is lifted. Due to the existence of the ring 050, the disk-shaped thin-walled composite product 01 will also be lifted. Unscrewing the first tightening bolt 10 or the second tightening bolt 12 can realize the demolding of the disk-shaped thin-walled composite product 01.

[0047] Two handles 13 are uniformly fixed on the outer bottom surface of the limiting disk 07, and workers can use the handles 13 to disassemble and assemble the limiting disk 07.

[0048] More specifically, it further includes a support 14. The lower end of the mold body 04 is fixed to the support 14, and the support 14 can reliably support the mold body 04.

[0049] More specifically, a jacking hole is provided on the upper end surface of the limiting post 05, and a positioning hole is provided on the end surface of the limiting disk 07. One end of the positioning pin 15 passes through the positioning hole and is inserted into the jacking hole. The design of the positioning pin 15 ensures that the limiting disk 07 and the limiting post 05 can be reliably arranged coaxially;

[0050] When using this forming mold to manufacture the disk-shaped thin-walled composite product 01:

[0051] First step, the mold body 04 is horizontally arranged, and the limiting disk 07 is not buckled on the limiting post 05. The demolding ring 08 is fixed to the mold body 04, and the worker lays the prepreg in the forming cavity 040.

[0052] Second step, after the prepreg layer in the forming cavity 040 is laid, the worker coaxially buckles the limiting disk 07 on the limiting post 05. Then, the foam block coated with multiple layers of prepreg is placed in the notch 070, and it is ensured that the prepreg coated on the foam block is in close contact with the prepreg laid in the forming cavity 040. After the foam block coated with multiple layers of prepreg is placed, the limiting disk 07 is taken out.

[0053] Third step, a vacuum bag communicating with the forming cavity 040 is buckled on the outside of the demolding ring 08. The vacuum bag is connected to a vacuum pump. The vacuum pump works, and the limiting ring 06 applies a certain pressure to the prepreg in the forming cavity 040, that is, local pressurization; finally, the connection between the vacuum bag and the vacuum pump is disconnected, and the vacuum bag still remains in a negative pressure state. The mold body 04, the support 14, and the vacuum bag as a whole are moved into a autoclave for overall temperature increase and pressure curing;

[0054] In the fourth step, after the prepreg is cured, the mold body 04 is removed from the autoclave, the vacuum bag is removed, and the disc-shaped thin-walled composite product 01 is demolded by using the first tightening bolt 10 or the second tightening bolt 12. Finally, the disc-shaped thin-walled composite product 01 is cut and separated from the connecting piece.

[0055] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference may be made to each other.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A forming mold for a disc-shaped thin-walled composite product. A through hole (010) is centrally provided at the closed end of the disc-shaped thin-walled composite product (01). A metal washer (02) and a plurality of reinforcing rib plates (03) are provided on the inner wall of the closed end of the disc-shaped thin-walled composite product (01). The metal washer (02) is coaxially arranged outside the through hole (010), and the plurality of reinforcing rib plates (03) are uniformly arranged along the circumferential direction of the disc-shaped thin-walled composite product (01). It is characterized in that, Including: A mold body (04), the mold body (04) is horizontally arranged and its upper end face is provided with a molding cavity (040), and the outer wall of the disc-shaped thin-walled composite material product (01) can be in close contact with the cavity wall of the molding cavity (040); A limiting member, the limiting member includes a limiting column (05), a limiting ring (06) and a limiting disc (07), the limiting column (05) is coaxially and detachably fixed in the molding cavity (040), and the hole wall of the through hole (010) can be in close contact with the outer side wall of the limiting column (05); the limiting ring (06) is coaxially and tightly sleeved on the limiting column (05), and the lower ring surface of the limiting ring (06) can be in close contact with the upper surface of the metal washer (02); the limiting disc (07) can be coaxially buckled above the limiting column (05), the inner bottom surface of the limiting disc (07) can be in close contact with the upper end wall of the limiting column (05), and a plurality of through slits (070) are formed in the end wall of the limiting disc (07), and the plurality of slits (070) are uniformly arranged along the circumferential direction of the limiting disc (07), and each slit (070) is tightly fitted with a reinforcing rib plate (03).

2. The forming mold for a disc-shaped thin-walled composite material product according to claim 1, wherein It further includes a mold lifting ring (08), the mold lifting ring (08) is detachably and tightly fixed to the upper end face of the mold body (04), the mold lifting ring (08) is coaxially arranged with the molding cavity (040), and a ring-shaped connecting member is integrally formed at the open end of the disc-shaped thin-walled composite material product (01) coaxially, and the outer wall of the connecting member can be in close contact with the inner ring surface and the upper top surface of the mold lifting ring (08).

3. A forming mold for a disc-shaped thin-walled composite material product according to claim 2, characterized in that, It further includes a connecting bolt one (09) and a tightening bolt one (10), the mold lifting ring (08) is provided with a stepped hole one and a threaded hole one penetrating through its upper and lower top surfaces, the upper end face of the mold body (04) is provided with a threaded blind hole one, one end of the connecting bolt one (09) passes through the stepped hole one and is screwed into the threaded blind hole one, and the nut of the connecting bolt one (09) is embedded in the stepped hole one; the tightening bolt one (10) is screwed into the threaded hole one, and the end of the tightening bolt one (10) away from its nut can be in contact with the upper end face of the mold body (04).

4. A forming mold for a disc-shaped thin-walled composite product according to claim 3, characterized in that, The threaded length of the tightening bolt one (10) is greater than the thickness of the mold lifting ring (08), and there are a plurality of the stepped hole one and the threaded hole one, and the plurality of stepped hole one are uniformly arranged along the circumferential direction of the mold lifting ring (08), and the plurality of threaded hole one are uniformly arranged along the circumferential direction of the mold lifting ring (08).

5. A forming mold for a disc-shaped thin-walled composite material product according to claim 1, characterized in that, It further includes a second connecting bolt (11). A circular ring (050) is integrally formed coaxially on the outer wall of the limiting column (05) near its lower end. The lower end surface of the circular ring (050) is flush with the lower end surface of the limiting column (05). A circular groove (0400) is coaxially formed on the bottom wall of the forming cavity (040). The circular ring (050) is embedded in the circular groove (0400). The outer wall of the closed end of the disc-shaped thin-walled composite product (01) can be in close contact with the upper end surface of the circular ring (050). A second threaded blind hole is formed on the bottom wall of the circular groove (0400). A stepped hole two penetrating the upper and lower end surfaces is formed on the limiting column (05). One end of the second connecting bolt (11) is screwed into the second threaded blind hole after passing through the stepped hole two. The nut of the second connecting bolt (11) is embedded in the stepped hole two.

6. A forming mold for a disc-shaped thin-walled composite product according to claim 5, characterized in that, It further includes a second tightening bolt (12). A second threaded hole penetrating the upper and lower end surfaces is formed on the limiting column (05). One end of the second tightening bolt (12) is screwed into the second threaded hole. The end of the second tightening bolt (12) away from its nut can abut against the bottom wall of the circular groove (0400). A relief hole is formed on the bottom surface of the limiting disc (07). The second tightening bolt (12) is located in the relief hole.

7. A forming mold for a disc-shaped thin-walled composite product according to claim 1, characterized in that, A plurality of handles (13) are uniformly fixed on the outer bottom surface of the limiting disc (07).

8. A forming mold for a disc-shaped thin-walled composite material product according to claim 1, characterized in that, It further includes a support (14). The lower end of the mold body (04) is fixed to the support (14).

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