Composite material forming mold with flexible and adjustable size

Abstract

The utility model discloses a composite material forming die with flexible and adjustable size, which comprises a support component and a base, and a flat plate is fixed on the upper side of the base; the female die assembly comprises an L-shaped positioning die body, a first block die body, a second block die body and a third block die body, the positioning die body is fixed to the flat plate, one end of the positioning die body is detachably connected with one end of the first block die body, and the other end of the positioning die body is detachably connected with the third block die body. The other end of the positioning mold body is detachably connected with one end of the second block mold body, and the two ends of the third block mold body are detachably connected with the other end of the first block mold body and the other end of the second block mold body respectively; the inner side of the positioning mold body, the inner side of the first block mold body, the inner side of the third block mold body, the inner side of the second block mold body and the upper side of the flat plate form a forming cavity; the production requirements of products with different sizes can be met through simple adjustment, the application range is widened, and the preparation cost is reduced.

Description

A flexible and adjustable composite material molding die Technical Field

[0001] This utility model relates to the field of composite material molding technology, and in particular to a composite material molding die with flexible and adjustable dimensions. Background Technology

[0002] In today's booming manufacturing era, composite materials, with their superior properties such as high specific strength, high specific modulus, good corrosion resistance, and design flexibility, are finding increasingly widespread applications in numerous fields. From aerospace aircraft components and lightweight automotive parts to electronic device housings and new building materials in the construction industry, composite materials are gradually becoming key materials driving technological upgrades and product innovation across various sectors.

[0003] With the continuous changes and diversification of market demands, the dimensions and specifications of composite material products are becoming increasingly diverse. In the molding process of composite materials, molding dies, as indispensable tools, directly determine the final shape and dimensional accuracy of the product. However, traditional composite material molding dies are mostly designed with fixed dimensions; that is, a single set of dies can only be used to produce composite material products of a specific size, lacking flexibility and adaptability. To meet the production needs of composite material products with different dimensions and specifications, companies often need to invest heavily in designing and manufacturing multiple specialized dies of different sizes, which not only significantly increases production costs but also extends the product production cycle and reduces production efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems mentioned above and / or existing composite material molding dies, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a composite material molding die with flexible and adjustable dimensions, which can be adapted to the production needs of products of different sizes through simple adjustments, thereby increasing the scope of application and reducing the manufacturing cost.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a composite material molding die with flexible and adjustable dimensions, comprising,

[0008] The support assembly includes a base, to which a flat plate is fixedly connected;

[0009] The female mold assembly includes an L-shaped positioning mold body, a first segmented mold body, a second segmented mold body, and a third segmented mold body. The positioning mold body is fixedly connected to a flat plate. One end of the positioning mold body is detachably connected to one end of the first segmented mold body, and the other end of the positioning mold body is detachably connected to one end of the second segmented mold body. The other end of the first segmented mold body is detachably connected to one end of the third segmented mold body, and the other end of the third segmented mold body is detachably connected to the other end of the second segmented mold body. A molding cavity is formed on the inner side of the positioning mold body, the inner side of the first segmented mold body, the inner side of the third segmented mold body, the inner side of the second segmented mold body, and the upper side of the flat plate.

[0010] As a further improvement of this utility model, the lower end of the positioning mold body has an outward-facing L-shaped positioning connecting flap, and a first positioning connecting plate is fixed on the upper side of one end of the positioning connecting flap. The first positioning connecting plate has a plurality of first positioning connecting holes. The lower end of the first segmented mold body has an outward-facing L-shaped first connecting flap, and a first connecting plate is fixed on one end of the first connecting flap. The first connecting plate can fit against the first positioning connecting plate, and the first connecting plate has a plurality of first connecting holes that correspond one-to-one with the first positioning connecting holes.

[0011] As a further improvement of this utility model, a second positioning connecting plate is fixed to the upper side of the other end of the positioning connecting flap, and the lower end of the second segmented mold body has an outward-facing L-shaped second connecting flap. A second connecting plate is fixed to the upper side of one end of the second connecting flap, and the second connecting plate can fit against the second positioning connecting plate. A plurality of second positioning connecting holes are opened on the second positioning connecting plate, and a plurality of second connecting holes corresponding one-to-one with the second positioning connecting holes are opened on the second connecting plate.

[0012] As a further improvement of this utility model, a third connecting plate is fixed to the upper side of the other end of the first connecting flap, an L-shaped third connecting flap is fixed to the lower end of the third segmented mold body facing outward, a fourth connecting plate is fixed to the upper side of one end of the third connecting flap, the fourth connecting plate can be attached to the third connecting plate, the third connecting plate has a plurality of third connecting holes, and the fourth connecting plate has a plurality of fourth connecting holes corresponding one-to-one with the third connecting holes.

[0013] As a further improvement of this utility model, a fifth connecting plate is fixed to the upper side of the other end of the second connecting flap, and a sixth connecting plate is fixed to the upper side of the other end of the third connecting flap. The sixth connecting plate can fit onto the fifth connecting plate. The fifth connecting plate has a plurality of fifth connecting holes, and the sixth connecting plate has a plurality of sixth connecting holes that correspond one-to-one with the fifth connecting holes.

[0014] As a further improvement of this utility model, the first connecting flip plate has a first positioning groove, the flat plate is movably connected to a first positioning block through the first positioning groove, the first positioning block has a first fixing hole, and the first positioning groove is located in the length direction on the side where the first positioning connecting plate is located.

[0015] As a further improvement of this utility model, the second connecting flip plate has a second positioning groove, the flat plate is movably connected to the second positioning block through the second positioning groove, the second positioning block has a second fixing hole, the second positioning groove is set in the length direction of the side where the second positioning connecting plate is located, and the second positioning groove is perpendicular to the first positioning groove.

[0016] As a further improvement of this utility model, the third connecting flap is provided with a third positioning groove and a fourth positioning groove, the central axes of the third positioning groove and the fourth positioning groove are perpendicular, and the third positioning groove is arranged in the length direction of the side where the fourth connecting plate is located.

[0017] As a further improvement of this utility model, the positioning connecting flip plate has at least two upper limit holes, two of which are not in the same length direction, and the plate has several lower limit holes that correspond one-to-one with the upper limit holes.

[0018] As a further improvement of this utility model, the positioning connecting flip plate has at least two upper positioning reference holes, and the flat plate has several lower positioning reference holes corresponding to the upper positioning reference holes.

[0019] Compared with the prior art, this utility model has the following technical effects: by splicing four mold bodies together, when the product size changes, a stop block is placed between two relatively set mold bodies according to the size change, and then the two mold bodies and the stop block are fixedly connected together, so that a new size forming cavity is formed on the inner side of each mold body and the upper side of the flat plate, which is convenient for adjustment; furthermore, by adjusting the position of the corresponding positioning block, one end of the connecting flip plate positioning groove and the corresponding end of the positioning block can be in contact, and then a stop block is placed between two mold bodies, making the size adjustment of the forming cavity more flexible. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 is a three-dimensional structural diagram of this utility model.

[0022] Figure 2 is a magnified view of part A in Figure 1.

[0023] Figure 3 is a magnified view of part B in Figure 1.

[0024] Figure 4 is a magnified view of part C in Figure 1.

[0025] Figure 5 is a magnified view of part D in Figure 1.

[0026] Figure 6 is a three-dimensional structural diagram of this utility model.

[0027] Figure 7 is a magnified view of part E in Figure 6.

[0028] In the diagram: 1. Support component, 101. Base, 102. Flat plate, 2. Female mold component, 201. Positioning mold body, 2011. Positioning connecting flap, 2011-1. Upper positioning reference hole, 2011-2. Upper limit hole, 2012. First positioning connecting plate, 2013. Second positioning connecting plate, 202. First segmented mold body, 2021. First connecting flap, 2021-1. First positioning groove, 2022. First connecting plate, 2023. Third connecting plate, 203. Third segmented mold body, 2031. Fourth connecting plate, 2032 Third connecting flap, 2032-1 Third positioning groove, 2032-2 Fourth positioning groove, 2033 Sixth connecting plate, 204 Second segmented mold body, 2041 Second connecting flap, 2041-1 Second positioning groove, 2042 Second connecting plate, 2043 Fifth connecting plate, 205 First positioning block, 206 Third positioning block, 207 Second positioning block, 208 Fourth positioning block, 3 Forming cavity, 4 Fixing bolt, 5 Positioning pin, 6 Nut, 7 Fastening bolt. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Example 1: Referring to Figures 1 and 6, this is the first embodiment of the present invention. This embodiment provides a composite material molding die with flexible and adjustable dimensions. It has a simple structure and can adjust the size of the molding cavity in the die according to the product size, making it more widely applicable.

[0033] A composite material molding die with flexible and adjustable size includes a support component 1, which includes a base 101 and a plate 102 fixedly connected to the upper side of the base 101; a female mold component 2 for molding is connected to the upper side of the plate 102.

[0034] Specifically, the female mold assembly 2 includes an L-shaped positioning mold body 201, a first segmented mold body 202, a second segmented mold body 204, and a third segmented mold body 203. The positioning mold body 201 is fixedly connected to the plate 102. One end of the positioning mold body 201 is detachably connected to one end of the first segmented mold body 202. The other end of the positioning mold body 201 is detachably connected to one end of the second segmented mold body 204. The other end of the first segmented mold body 202 is detachably connected to one end of the third segmented mold body 203. The other end of the third segmented mold body 203 is detachably connected to the other end of the second segmented mold body 204. A molding cavity 3 is formed on the inner side of the positioning mold body 201, the inner side of the first segmented mold body 202, the inner side of the third segmented mold body 203, the inner side of the second segmented mold body 204, and the upper side of the plate 102.

[0035] When installing the female mold assembly 2, first fix the positioning mold body 201 to the designated position on the plate 102. One end of the first segment mold body 202 is attached to one end of the positioning mold body 201, one end of the second segment mold body 204 is attached to the other end of the positioning mold body 201, and one end of the third segment mold body 203 is attached to the other end of the first segment mold body 202 and the other end of the third segment mold body 203 is attached to the other end of the second segment mold body 204. At this time, the molding cavity 3 is at its smallest. Fix one end of the first segment mold body 202 to one end of the positioning mold body 201, one end of the second segment mold body 204 to the other end of the positioning mold body 201, and both ends of the third segment mold body 203 to the other ends of the first segment mold body 202 and the second segment mold body 204, respectively, to fix the female mold assembly 2. When the size of the product to be molded increases, the position of each segment mold body needs to be adjusted according to the new product size. Loosen each segment mold body, and according to the new product size, horizontally move each segment mold body to the required position. Place stop blocks at both ends of the positioning mold body 201. Then, attach one end of the first segment mold body 202 and the second segment mold body 204 to the corresponding two stop blocks. Use several fastening bolts 7 and nuts 6 to fix one end of the positioning mold body 201, the corresponding stop block, and one end of the first segment mold body 202 together. Fix the other end of the positioning mold body, the corresponding stop block, and one end of the second segment mold body 204 together. Place stop blocks of appropriate thickness at the other end of the first segment mold body 202 and the other end of the second segment mold body. Then, use several fastening bolts 7 and nuts 6 to fix the other end of the first segment mold body 202, the stop block, and one end of the third segment mold body 203 together. Fix the other end of the third segment mold body 203, the stop block, and the other end of the second segment mold body 204 together to achieve adjustment of the size of the molding cavity 3.

[0036] Specifically, the lower end of the positioning mold body 201 has an outward-facing L-shaped positioning connecting flap 2011. A first positioning connecting plate 2012 is fixed to the upper side of one end of the positioning connecting flap 2011. The first positioning connecting plate 2012 has several first positioning connecting holes. The lower end of the first segmented mold body 202 has an outward-facing L-shaped first connecting flap 2021. A first connecting plate 2022 is fixed to one end of the first connecting flap 2021. The first connecting plate 2022 can fit against the first positioning connecting plate 201. 2. The first connecting plate 2022 has several first connecting holes that correspond one-to-one with the first positioning connecting holes; a second positioning connecting plate 2013 is fixed to the upper side of the other end of the positioning connecting flap 2011; the lower end of the second segmented mold body 204 has an outward-facing L-shaped second connecting flap 2041; a second connecting plate 2042 is fixed to the upper side of one end of the second connecting flap 2041; the second connecting plate 2042 can fit against the second positioning connecting plate 2013; the second positioning connecting plate 2013 has several first connecting holes that correspond one-to-one with the first positioning connecting holes; The second connecting plate 2042 has several second connecting holes that correspond one-to-one with the second positioning connecting holes; a third connecting plate 2023 is fixed to the upper side of the other end of the first connecting flap 2021; an L-shaped third connecting flap 2032 is fixed to the outward-facing lower end of the third segmented mold body 203; a fourth connecting plate 2031 is fixed to the upper side of one end of the third connecting flap 2032, and the fourth connecting plate 2031 can fit against the third connecting plate 2023; the third connecting plate 2023 has several... The third connecting hole and the fourth connecting plate 2031 have several fourth connecting holes that correspond one-to-one with the third connecting hole; the upper side of the other end of the second connecting flap 2041 is fixed with a fifth connecting plate 2043, and the upper side of the other end of the third connecting flap 2032 is fixed with a sixth connecting plate 2033. The sixth connecting plate 2033 can fit on the fifth connecting plate 2043. The fifth connecting plate 2043 has several fifth connecting holes, and the sixth connecting plate 2033 has several sixth connecting holes that correspond one-to-one with the fifth connecting holes.

[0037] The stop block has several fastening holes that correspond one-to-one with the connecting holes. Taking the installation of the first segment mold body 202 and the positioning mold body 201 as an example when the required forming cavity 3 is at its minimum, the fastening bolt 7 passes through the first positioning connecting hole and the first connecting hole, and then the nut 6 is screwed on. When the nut 6 is pressed against the side of the first connecting plate 2022 away from the first positioning connecting plate 2012, the first segment mold body 202 and the positioning mold body 201 are fixedly connected. The connection method between the second segment mold body 204 and the positioning mold body 201, and the connection method between the two ends of the third segment mold body 203 and the first segment mold body 202 and the second segment mold body 204 respectively, are the same as described above and will not be repeated here. When the forming cavity 3 is enlarged... After the cavity 3 is adjusted to the appropriate size, the installation of the second segment mold body 204 and the positioning mold body 201 is described as an example. After passing the fastening bolt 7 through the second positioning connection hole, the fastening hole and the second connection hole, the nut 6 is screwed on. When the nut 6 is pressed against the side of the second connecting plate 2042 away from the second positioning connection plate 2013, the fixed connection between one end of the second segment mold body 204 and the other end of the positioning mold body 201 is achieved. The connection method between one end of the first segment mold body 202, the stop block and one end of the positioning mold body 201, and the connection method between the two ends of the third segment mold body 203 and the other end of the second segment mold body 204 and the other end of the first segment mold body 202 are the same as the above methods, and will not be repeated here.

[0038] The above installation method facilitates the assembly of each component in the female mold assembly 2, and also allows for adjustment of the size of the molding cavity 3 according to the product size, making it widely applicable.

[0039] Example 2: Referring to Figures 1 and 3 to 7, this example provides a composite material molding die with flexible and adjustable dimensions. The difference between this example and Example 1 is that it can further facilitate the adjustment of the size of the molding cavity 3.

[0040] Specifically, the first connecting flap 2021 has a first positioning groove 2021-1, and the plate 102 is movably connected to a first positioning block 205 via the first positioning groove 2021-1. The first positioning block 205 has a first fixing hole, and the first positioning groove 2021-1 is located along the length of the side where the first positioning connecting plate 2012 is located. The second connecting flap 2041 has a second positioning groove 2041-1, and the plate 102 is movably connected to a second positioning block 207 via the second positioning groove 2041-1. The second positioning block 207 has a second fixing hole, and the second positioning groove 2041-1 is located along the length of the second positioning connecting plate 2012. Along the length of the side where the connecting plate 2013 is located, the second positioning groove 2041-1 and the first positioning groove 2021-1 are perpendicular; the third connecting flap 2032 has a third positioning groove 2032-1 and a fourth positioning groove 2032-2, and the third connecting flap 2032 movably connects the third positioning groove 2032-1 and the fourth positioning groove 2032-2 to the third positioning block 206 and the fourth positioning block 208 respectively. The central axes of the third positioning groove 2032-1 and the fourth positioning groove 2032-2 are perpendicular, and the third positioning groove 2032-1 is located along the length of the side where the fourth connecting plate 2031 is located.

[0041] When the size of the product to be formed is larger, slide each positioning block to a suitable position, and then adjust the position of each segment mold body. Taking the position adjustment of the first segment mold body 202 as an example, slide the first positioning block 205 so that the first positioning block 205 slides in the direction of the first positioning connecting plate 2012. When it slides to a suitable position, fix the first positioning block 205 on the plate 102, push the first segment mold body 202, and when the end of the first positioning groove 2021-1 near the first connecting plate 2022 abuts against the end of the first positioning block 205 relative to the first positioning connecting plate 2012, insert the stop block of the corresponding thickness just into the gap between the first positioning connecting plate 2012 and the first connecting plate 2022, use the fastening bolt 7 to pass through the first positioning connecting hole, the fastening hole and the corresponding first connecting hole, and then screw on the nut 6. When the nut 6 is pressed on the side of the first connecting plate 2022 away from the first positioning connecting plate 2012, the fixed connection of the first segment mold body 202 and the positioning mold body 201 is realized.

[0042] The combined arrangement of the positioning block and the positioning groove on the segmented mold body further facilitates the adjustment of the size of the forming cavity 3.

[0043] Example 3: Referring to Figures 1 and 2, this example provides a composite material molding die with flexible and adjustable dimensions. The difference between this example and Example 2 is that it can further facilitate the positioning and installation of the mold body 201.

[0044] Specifically, the positioning connecting flap 2011 has at least two upper limit holes 2011-2, two of which are not in the same length direction. The plate 102 has several lower limit holes that correspond one-to-one with the upper limit holes 2011-2. The positioning connecting flap 2011 has at least two upper positioning reference holes 2011-1, and the plate 102 has several lower positioning reference holes that correspond to the upper positioning reference holes 2011-1.

[0045] When installing the positioning mold body 201 onto the upper side of the plate 102, adjust the position of the positioning mold body 201 so that each upper positioning reference hole 2011-1 is aligned with the corresponding lower positioning reference hole. Use positioning pins 5 to insert into the upper positioning reference holes 2011-1 and the corresponding lower positioning reference holes to achieve positioning of the positioning mold body 201. Use fixing bolts 4 to insert into the upper limit hole 2011-2 and then screw them into the lower limit hole. The fixing bolts 4 are pressed against the upper side of the plate 102 to achieve a fixed connection between the positioning mold body 201 and the plate 102, which is convenient for installation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A composite material molding die with flexible and adjustable dimensions, characterized in that: The system includes a support assembly (1), comprising a base (101) with a plate (102) fixedly connected to the upper side of the base (101); and a female mold assembly (2), comprising an L-shaped positioning mold body (201), a first segmented mold body (202), a second segmented mold body (204), and a third segmented mold body (203). The positioning mold body (201) is fixedly connected to the plate (102). One end of the positioning mold body (201) is detachably connected to one end of the first segmented mold body (202), and the other end of the positioning mold body (201) is detachably connected to one end of the second segmented mold body (204). The other end of the segmented mold body (202) and one end of the third segmented mold body (203) are detachably connected, and the other end of the third segmented mold body (203) and the other end of the second segmented mold body (204) are detachably connected; a molding cavity (3) is formed on the inner side of the positioning mold body (201), the inner side of the first segmented mold body (202), the inner side of the third segmented mold body (203), the inner side of the second segmented mold body (204), and the upper side of the plate (102); the lower end of the positioning mold body (201) has an outward-facing L-shaped positioning connecting flap (2011), and the lower end of the first segmented mold body (202) has... The second segmented mold body (204) has an outward-facing L-shaped first connecting flap (2021) with a first positioning groove (2021-1). A plate (102) is movably connected to a first positioning block (205) via the first positioning groove (2021-1). The first positioning block (205) has a first fixing hole. The lower end of the second segmented mold body (204) has an outward-facing L-shaped second connecting flap (2041) with a second positioning groove (2041-1). A plate (102) is movably connected to a second positioning block (207) via the second positioning groove (2041-1). A second fixing hole is opened on the block (207), and the second positioning groove (2041-1) is perpendicular to the first positioning groove (2021-1); an L-shaped third connecting flap (2032) is fixed at the lower end of the third segmented mold body (203) facing outward, and the third connecting flap (2032) has a third positioning groove (2032-1) and a fourth positioning groove (2032-2), and the central axes of the third positioning groove (2032-1) and the fourth positioning groove (2032-2) are perpendicular; according to the size change, a stop block is placed between the two mold bodies that are set opposite each other, and then the two mold bodies and the stop block that are set opposite each other are fixedly connected together.

2. The dimensionally adjustable composite material molding die as described in claim 1, characterized in that: A first positioning connecting plate (2012) is fixed to the upper side of one end of the positioning connecting flap (2011). A first positioning groove (2021-1) is set in the length direction of the side where the first positioning connecting plate (2012) is located. A plurality of first positioning connecting holes are opened on the first positioning connecting plate (2012). A first connecting plate (2022) is fixed to one end of the first connecting flap (2021). The first connecting plate (2022) can fit against the first positioning connecting plate (2012). A plurality of first connecting holes corresponding one-to-one with the first positioning connecting holes are opened on the first connecting plate (2022).

3. The dimensionally adjustable composite material molding die as described in claim 2, characterized in that: A second positioning connecting plate (2013) is fixed to the upper side of the other end of the positioning connecting flap (2011). A second positioning groove (2041-1) is set in the length direction of the side where the second positioning connecting plate (2013) is located. A second connecting plate (2042) is fixed to the upper side of one end of the second connecting flap (2041). The second connecting plate (2042) can fit against the second positioning connecting plate (2013). A plurality of second positioning connecting holes are opened on the second positioning connecting plate (2013). A plurality of second connecting holes corresponding one-to-one with the second positioning connecting holes are opened on the second connecting plate (2042).

4. The dimensionally adjustable composite material molding die as described in claim 3, characterized in that: A third connecting plate (2023) is fixed to the upper side of the other end of the first connecting flap (2021), and a fourth connecting plate (2031) is fixed to the upper side of one end of the third connecting flap (2032). A third positioning groove (2032-1) is set in the length direction of the side where the fourth connecting plate (2031) is located. The fourth connecting plate (2031) can fit against the third connecting plate (2023). The third connecting plate (2023) has a plurality of third connecting holes, and the fourth connecting plate (2031) has a plurality of fourth connecting holes that correspond one-to-one with the third connecting holes.

5. The dimensionally adjustable composite material molding die as described in claim 4, characterized in that: A fifth connecting plate (2043) is fixed to the upper side of the other end of the second connecting flap (2041), and a sixth connecting plate (2033) is fixed to the upper side of the other end of the third connecting flap (2032). The sixth connecting plate (2033) can fit on the fifth connecting plate (2043). The fifth connecting plate (2043) has a plurality of fifth connecting holes, and the sixth connecting plate (2033) has a plurality of sixth connecting holes that correspond one-to-one with the fifth connecting holes.

6. The dimensionally adjustable composite material molding die as described in any one of claims 1 to 4, characterized in that: The positioning connecting flap (2011) has at least two upper limit holes (2011-2), two of which are not in the same length direction. The plate (102) has several lower limit holes that correspond one-to-one with the upper limit holes (2011-2).

7. The dimensionally adjustable composite material molding die as described in any one of claims 1 to 4, characterized in that: The positioning connecting flap (2011) has at least two upper positioning reference holes (2011-1), and the plate (102) has several lower positioning reference holes corresponding to the upper positioning reference holes (2011-1).

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