Protective plate autoclave forming die for bullet train

Abstract

The invention relates to the technical field of autoclave forming dies, and discloses a bullet train protection plate autoclave forming die which comprises a chassis and a bottom plate which are integrated, the bottom face of the chassis is of a grid structure, the top of the chassis is connected with the bottom plate through a supporting structure so that the bottom plate can be communicated with the outside, and a protection plate material containing groove is formed in the top face of the bottom plate. A plurality of through holes are formed in the side face of the chassis so that the through holes in the side face can communicate with the grid structure. Uniform distribution of heat is facilitated, stress concentration is reduced, the heating performance and the heat dissipation performance are improved, and sufficient heat stability and heat conduction coefficient are achieved, so that the production cost is reduced; through combination of a grid structure and a protection plate mold containing groove, the self weight is reduced so as to reduce the production and transportation cost, meanwhile, the strength and rigidity are kept, material use is optimized, reinforcing ribs are combined on the edge of the mold, stability and durability are improved, and fatigue and deformation risks are reduced; the net rack design facilitates heat dissipation, heat stability is improved, forming precision is ensured, and product defects are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of autoclave forming dies, in particular to an autoclave forming dies for a motor vehicle protective plate. Background Art

[0002] Autoclave forming molds are a type of mold used to manufacture composite parts, and are widely used in aerospace, automotive, wind energy and other fields. The basic principle is to place the pre-impregnated resin composite material in the mold, and cure the resin by heating and pressurizing to form a high-strength composite part. Autoclave forming molds are popular in composite material manufacturing and other industrial applications due to their uniform temperature and pressure distribution, high-strength material properties, stable feeding, wide material adaptability and automated control.

[0003] The invention patent with application publication number CN112372736A discloses a manufacturing mold for automobile wheel fender protective cover, including an upper mold and a lower mold, and a mold cavity for shaping the automobile wheel fender protective cover is reserved between the upper mold and the lower mold, and the mold cavity is composed of a plurality of cavities connected in sequence, and the fender protective cover is divided into a plurality of component parts, and the component parts correspond to the cavities one by one. The component parts are closed together to form the fender protective cover as a whole, and the connecting part between the cavities is the bending and unfolding line between the component parts, and each component part includes at least one installation positioning hole. This solution reduces the processing equipment and production equipment requirements of the mold, and avoids the problem that the mold needs to be punched through the insert and the side of the mold for the undercut of the part. However, the mold material of this solution is thicker, the thermal conductivity is poor, the heat dissipation effect is poor, and the material cannot be heated up in a short time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hot press forming die for a protective plate for a motor vehicle, which improves the heating performance and heat dissipation performance, has sufficient thermal stability and thermal conductivity, and thus reduces production costs.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] A protective plate autoclave forming die for a motor vehicle comprises an integrated chassis and a bottom plate. The bottom surface of the chassis is a grid structure, and the top is connected to the bottom plate through a supporting structure to achieve communication between the bottom plate and the outside. A protective plate material placement groove is formed on the top surface of the bottom plate, and a plurality of through holes are provided on the side of the chassis to achieve communication between the through holes on the side and the grid structure.

[0007] As a further implementation, the chassis is a box structure with an opening on the top, and the edge of the opening is connected to the bottom plate to form an integrated structure.

[0008] As a further implementation method, the through holes are arranged on the four sides of the chassis, and the height of the through holes is smaller than the maximum height of the protective plate material placement groove.

[0009] As a further implementation, the thickness of each position of the bottom plate is the same.

[0010] As a further implementation, hanging parts are provided at both ends of a group of opposite sides of the chassis.

[0011] As a further implementation, the grid structure forms a plurality of rectangular openings on the bottom surface of the chassis, and the rectangular openings are connected to the through holes.

[0012] As a further implementation method, the shape of the protective plate material placement groove is adapted to the shape of the protective plate for the motor vehicle, and a corresponding step structure is formed on the bottom surface of the bottom plate.

[0013] As a further implementation method, the grid structure is connected to the bottom surface of the base plate via a support structure, and the support structure includes reinforcing ribs and support columns.

[0014] As a further implementation, the support structure is arranged at a cross intersection of the grid structure.

[0015] As a further implementation, the reinforcing rib is disposed at a position corresponding to the position of the step structure, and the support column is disposed at a plane position of the base plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The bottom surface of the chassis of the present invention is a grid structure, and the top is connected to the bottom plate through a supporting structure to achieve communication between the bottom plate and the outside. A plurality of through holes are provided on the side of the chassis to achieve communication between the through holes on the side and the grid structure, which helps to evenly distribute heat, reduce stress concentration, improve heating performance and heat dissipation performance, and have sufficient thermal stability and thermal conductivity, thereby reducing production costs.

[0018] 2. The grid structure of the present invention is connected to the chassis through a supporting structure, so that the grid structure and the reinforcing ribs can effectively disperse the load, enhance the overall strength and rigidity of the mold, and ensure that the mold does not deform under high pressure and high temperature. The mold as a whole adopts a low thickness and grid structure design to make the mold lightweight and reduce the operating burden.

[0019] 3. The present invention adopts support columns to support the chassis, and adopts reinforcing ribs to support the chassis at corresponding step positions, thereby achieving stable support for the chassis, uniform support positions, and ensuring that stress concentration does not occur on the bottom plate.

[0020] 4. The present invention combines the grid structure with the protective plate mold placement slot to reduce the deadweight to reduce production and transportation costs while maintaining strength and rigidity. Optimize material use, combine the ribs at the edge of the mold, improve stability and durability, and reduce fatigue and deformation risks. In addition, the grid design facilitates heat dissipation, improves thermal stability, and ensures molding accuracy. At the same time, it improves mold performance and reduces product defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0022] Figure 1 Schematic diagram of the overall structure of the autoclave forming die for the motor vehicle protective plate in the embodiment of the present invention;

[0023] Figure 2 1 is a schematic diagram of the bottom structure of a hot-pressed tank forming mold for a motor vehicle protective plate in an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the axonometric structure of a hot-pressed tank forming die for a motor vehicle protective plate in an embodiment of the present invention;

[0025] Figure 4 It is a detailed structural schematic diagram of the autoclave forming mold for the protection plate for a motor vehicle in an embodiment of the present invention.

[0026] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0027] Among them: 1. chassis, 2. bottom plate, 3. protective plate material placement groove, 4. lifting parts, 5. grid structure, 6. reinforcing ribs, 7. support columns, 11. through holes, 12. first step structure, 13. second step structure. DETAILED DESCRIPTION

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] Embodiment 1

[0030] In a typical embodiment of the present invention, reference is made to Figure 1-Figure 4As shown, a protective plate autoclave forming mold for a motor vehicle comprises an integrated chassis 1 and a bottom plate 2. The bottom surface of the chassis 1 is a grid structure 5, and the top is connected to the bottom plate through a supporting structure to achieve communication between the bottom plate 2 and the outside. A protective plate material placement groove 3 is formed on the top surface of the bottom plate 2. A plurality of through holes 11 are provided on the side of the chassis 1 to achieve communication between the through holes 11 on the side and the grid structure 5.

[0031] like Figure 1 As shown, the chassis 1 is a box structure with an open top and a hollow bottom. The chassis 1 has five surfaces, namely a bottom surface and four side surfaces. The top edges of the four side panels of the chassis 1, i.e., the opening edges, are connected to the bottom plate 2 as an integrated structure.

[0032] A protective plate material placement groove 3 is formed on the top surface of the bottom plate 2 , and the shape of the protective plate material placement groove 3 is adapted to the specific shape of the motor vehicle protective plate, so as to facilitate laying the composite material on the protective plate material placement groove 3 on the mold surface.

[0033] After the composite material is laid on the protective plate material placement groove 3 on the mold surface, the mold needs to be transferred to an autoclave for heating and pressurization. In this embodiment, hanging parts 4 are set at both ends of a set of opposite sides of the chassis 1. Figure 1 As shown, hanging parts 4 are arranged at both ends of the outer side surfaces of the two sides of the chassis 1 at the long sides, with a total of four hanging parts 4. The hanging parts 4 are lifting ring structures. By connecting the hanging equipment with the lifting ring, the mold is transferred to the autoclave for heating and pressurization.

[0034] like Figure 2-Figure 4 As shown, the bottom surface of the chassis 1 is hollowed out to form a grid structure 5, and the size of the grid structure 5 is adapted to the size of the protective plate material placement groove 3, so that the internal material of the protective plate material placement groove 3 can be well heated.

[0035] The top of the grid structure 5 is connected to the bottom plate 2 through a supporting structure to connect the bottom plate 2 to the outside, and can also provide stable support for the bottom plate 2, thereby enhancing the stability and durability of the mold. The setting of the grid structure 5 can also effectively reduce the weight of the mold, thereby reducing production and transportation costs.

[0036] The four side panels of the chassis 1 are provided with a plurality of through holes 11. In this embodiment, each set of side panels is provided with two sets of through holes 11. The through holes are provided at the four sides of the chassis 1. The height of the through holes 11 is less than the maximum height of the protective plate material placement groove 3. It can be understood that the grid structure 5 forms a plurality of rectangular openings on the bottom surface of the chassis 1, and the rectangular openings are connected to the through holes 11.

[0037] The through hole 11 is provided to help the mold to be heated evenly in the autoclave, and the through hole 11 is connected to the grid structure 5 to facilitate uniform heat distribution, thereby reducing stress concentration and further ensuring the molding quality of the protective plate.

[0038] The grid structure 5 is connected to the bottom surface of the bottom plate 2 through a support structure, which includes a reinforcing rib 6 and a support column 7. The reinforcing rib 6 and the support column 7 are both vertically arranged between the chassis 1 and the bottom plate 2. The bottom ends of the reinforcing rib 6 and the support column 7 are fixedly connected to the grid structure 5, and the top ends are fixedly connected to the bottom surface of the bottom plate 2. The reinforcing rib 6 and the support column 7 are used to achieve stable support for the bottom plate 2. Prevent deformation of the protective plate material placement slot 3.

[0039] In this embodiment, the thickness of each position of the bottom plate 2 is the same, so as to ensure that the protective plate material placement groove 3 is heated evenly at each position.

[0040] In this embodiment, by setting the grid structure 5, the bottom of the protective plate material placement groove 3 has better heat exchange with the outside, is well heated, reduces the thickness of the mold, and ensures the molding quality of the protective plate.

[0041] Specifically, the support structure is arranged at the cross point of the grid structure 5. The support column 7 is a columnar structure, preferably a cubic columnar structure, whose bottom end is fixedly connected to the top surface of the cross point of the grid structure 5, and whose top end is fixedly connected to the bottom plane of the bottom plate 2.

[0042] like Figure 4 As shown, since the shape of the protective plate material placement groove 3 is adapted to the shape of the protective plate, and the thickness of the bottom plate 2 is consistent at all locations, a first step structure 12 and a second step structure 13 are correspondingly formed on the ground of the bottom plate 2 .

[0043] The setting position of the reinforcing rib 6 corresponds to the position of the first step structure 12 and the second step structure 13. The reinforcing rib 6 is a rib plate structure, the bottom surface of which is a plane, used to be fixedly connected to the grid structure 5, and the top surface of which is also correspondingly provided with steps, used to be fixedly connected to the corresponding first step structure 12 and the second step structure 13.

[0044] By setting up the corresponding support structure, the grid structure can achieve good support for the bottom plate 2 through the support structure, preventing the problem of thermal deformation and stress concentration. The overall mold adopts low thickness and grid structure design to make the mold lightweight and reduce the operating burden. The grid structure and reinforcement ribs can effectively disperse the load, enhance the overall strength and rigidity of the mold, and ensure that the mold does not deform under high pressure and high temperature.

[0045] Specifically, when using the autoclave forming mold for the motor vehicle protective plate of this embodiment, the first step is the material preparation process, in which the composite material required for the motor vehicle protective plate is laid on the mold surface, and the mold is moved into the autoclave through a lifting ring for heating and pressurization.

[0046] During the heating process, the low-thickness EMU protective plate mold can heat up the mold in a short time with the cooperation of the through hole 11 and solidify. The grid structure 5 has good thermal conductivity. The reinforcing ribs 6 and the support column 7 can prevent the mold from warping or breaking during the molding process. The reinforcing ribs can effectively provide additional support. During the heat preservation process, the grid structure 5 is stable and not easy to deform. The mold has good thermal conductivity and good heat storage function due to its grid structure 5. During the cooling process, heat is dissipated through the through hole. After curing and molding, the mold surface can be marked and punched according to the position of the heat dissipation holes to form a finished product of the EMU protective plate.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hot-pressing tank forming die for a motor vehicle protective plate, characterized in that: It includes an integrated chassis and a bottom plate. The bottom surface of the chassis is a grid structure, and the top is connected to the bottom plate through a supporting structure to achieve communication between the bottom plate and the outside. A protective plate material placement groove is formed on the top surface of the bottom plate. A plurality of through holes are provided on the side of the chassis to achieve communication between the through holes on the side and the grid structure.

2. The autoclave forming mold for a motor vehicle protective plate according to claim 1, characterized in that: The chassis is a box structure with an opening on the top, and the edge of the opening is connected to the bottom plate to form an integrated structure.

3. The autoclave forming die for a motor vehicle protective plate according to claim 2, characterized in that: The through holes are arranged at the four sides of the chassis, and the height of the through holes is less than the maximum height of the protective plate material placement groove.

4. The autoclave forming mold for a motor vehicle protective plate according to claim 1, characterized in that: The thickness of each position of the bottom plate is the same.

5. The autoclave forming die for a motor vehicle protective plate according to claim 1, characterized in that: Lifting parts are arranged at two ends of a group of opposite sides of the chassis.

6. The autoclave forming die for a motor vehicle protective plate according to claim 1, characterized in that: The grid structure forms a plurality of rectangular openings on the bottom surface of the chassis, and the rectangular openings are connected to the through holes.

7. The autoclave forming die for a motor vehicle protective plate according to claim 1, characterized in that: The shape of the protective plate material placement groove is adapted to the shape of the protective plate for the motor vehicle, and a corresponding step structure is formed on the bottom surface of the bottom plate.

8. The autoclave forming die for a motor vehicle protective plate according to claim 7, characterized in that: The grid structure is connected to the bottom surface of the base plate via a supporting structure, which includes reinforcing ribs and supporting columns.

9. The autoclave forming die for a motor vehicle protective plate according to claim 8, characterized in that: The support structure is arranged at the cross intersection of the grid structure.

10. The autoclave forming die for a motor vehicle protective plate according to claim 9, characterized in that: The reinforcing ribs are arranged at positions corresponding to the positions of the step structures, and the support columns are arranged at plane positions of the bottom plate.

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