A shell thermal shaping tool

Abstract

The utility model discloses a kind of shell thermal shaping frock, including shaping module, its working surface is matched with product appearance;Heat conduction module, it is attached to the non-working surface of the shaping module;And heating and fixed module, it is arranged on the heat conduction module, for providing heat source and conducting heat to the heat conduction module.The utility model increases the plasticity of the shaping workpiece material to be waited for under high temperature, fluidity becomes good, yield strength reduces by the mode of initiative heating, this makes shaping operation become more labor-saving, deformation more uniform, can significantly reduce residual stress and springback from root, to obtain higher and more stable shaping precision (such as reach 0.05mm flatness), and there is possibility to save expensive intermediate annealing process, improve efficiency, reduce cost.

Description

Technical Field

[0001] This utility model relates to the technical field of shaping fixtures, and in particular to a shell thermal shaping fixture. Background Technology

[0002] In the manufacturing of precision metal parts, it is often necessary to reshape parts deformed after heat treatment to restore their flatness and other dimensional and positional accuracy. The currently widely used room-temperature cold forming process has significant drawbacks: forced correction by applying interference pressure ("overforming") using a hydraulic press leads to high residual stress within the material and significant springback after unloading, making it difficult to maintain stable forming accuracy and easily causing secondary deformation in other parts of the part. For cases with large deformation, a time-consuming intermediate annealing process may even be required to eliminate stress, resulting in a cumbersome, inefficient, and unreliable process. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] The technical problem to be solved by this utility model is to provide a shell thermal forming fixture. By actively heating, the plasticity of the workpiece material to be formed increases, the fluidity improves, and the yield strength decreases at high temperatures. This makes the forming operation more labor-saving and the deformation more uniform. It can significantly reduce residual stress and springback from the source, thereby obtaining higher and more stable forming accuracy (such as achieving a flatness of 0.05mm). It may also eliminate the expensive intermediate annealing process, improve efficiency, and reduce costs.

[0005] (II) Technical Solution

[0006] The solution adopted by this utility model to solve the above-mentioned technical problems is a shell heat forming tooling, including...

[0007] The shaping module has a working surface that matches the shape of the product.

[0008] A heat-conducting module is fitted onto the non-working surface of the shaping module;

[0009] In addition, a heating and fixing module is arranged on the heat-conducting module for providing a heat source and conducting heat to the heat-conducting module.

[0010] By adopting the above scheme, the plasticity of the workpiece material to be shaped is increased, the fluidity is improved, and the yield strength is reduced at high temperature through active heating. This makes the shaping operation more labor-saving and the deformation more uniform. It can significantly reduce residual stress and springback from the source, thereby obtaining higher and more stable shaping accuracy (such as achieving 0.05mm flatness) and potentially eliminating the expensive intermediate annealing process, improving efficiency and reducing costs.

[0011] In some embodiments, the heating and fixing module includes a plurality of heating tubes and a locking plate for fixing the heating tubes, the locking plate being fixedly connected to the side of the heat-conducting module.

[0012] Using the above solution, the heating tube is a mature, stable, and controllable heat source; by fixing the locking plate to the side of the heat-conducting module, rather than the bottom or other positions, a side heating layout is achieved. Heat is conducted laterally to the working surface of the shaping module through the heat-conducting module. The structure is compact, does not occupy the workpiece operating space, and facilitates the installation, maintenance, and replacement of the heating tube.

[0013] In some embodiments, the locking plate is fixedly connected to the side of the heat-conducting module by a plurality of first fasteners; the heating tube is fixed to the locking plate by a plurality of second fasteners.

[0014] By adopting the above scheme, the connection is firm, reliable, and detachable through the setting of the first and second fasteners, which facilitates the assembly, debugging, and subsequent maintenance of the tooling. When the shaping module is worn, the locking plate and heating tube can be easily removed from the heat conduction module for repair or replacement, thereby improving the service life and flexibility of the tooling.

[0015] In some embodiments, the heat-conducting module is provided with a plurality of positioning posts, and the locking plate is provided with positioning holes that can be adapted to the positioning posts.

[0016] By adopting the above solution, when installing the locking plate, the positioning column can quickly and accurately guide it to the correct position, preventing misalignment of the heating tube and the mounting hole on the heat conduction module due to installation deviation, or affecting the heat conduction efficiency, thus ensuring the accuracy and consistency of tooling assembly and ensuring assembly precision and repeatability.

[0017] In some embodiments, the heat-conducting module includes a plurality of mounting holes arranged through its side for mounting a plurality of heating tubes, the plurality of mounting holes being spaced apart along the length of the heat-conducting module.

[0018] Using the above scheme, heat is generated directly from inside the heat-conducting module and diffuses outward. The heat transfer path is short and the thermal efficiency is high, which can ensure the uniform temperature of the working surface of the shaping module and avoid local overheating or underheating, thereby ensuring the uniformity of the shaping effect and realizing efficient and uniform internal heating.

[0019] In some embodiments, the locking plate includes a through hole arranged coaxially with the mounting hole, and the heating tube is partially placed in the through hole and partially placed in the mounting hole.

[0020] Specifically, the second fastener penetrates the bottom surface of the locking plate and extends into the through hole to fix the heating tube inside the through hole, thereby limiting the shaking and displacement of the heating tube.

[0021] By adopting the above solution, the heating tube is locked from the bottom by the second fastener, which can effectively prevent the heating tube from loosening, shifting or even falling off under long-term vibration or thermal expansion and contraction. This avoids heating failure or safety accidents caused by poor contact of the heating tube, ensures the continuity and safety of production, and thus improves the safety and stability of the equipment.

[0022] In some embodiments, the shaping module includes a first shaping block and a second shaping block arranged vertically. The first shaping block includes a first working surface near one end of the second shaping block. The second shaping block includes a second working surface near one end of the first shaping block. The first working surface and the second working surface are respectively matched with the two sides of the product.

[0023] By using the above scheme, the first and second shaping blocks are set to simultaneously clamp both sides of the product, enabling simultaneous heating and pressure shaping on both sides. This is particularly effective for parts that require simultaneous correction of the shape of the upper and lower surfaces, further offsetting stress, reducing deformation, and improving shaping efficiency and symmetry accuracy.

[0024] In some embodiments, the first shaping block includes a first non-working surface at one end away from the second shaping block, and the second shaping block includes a second non-working surface at one end away from the first shaping block; the heat-conducting module includes a first heat-conducting pressure block and a second heat-conducting pressure block; wherein the first heat-conducting pressure block is in close contact with the first non-working surface of the first shaping block, and the second heat-conducting pressure block is in close contact with the second non-working surface of the second shaping block.

[0025] Specifically, there are two locking blocks, which are respectively arranged on the sides of the first heat-conducting pressure block and the second heat-conducting pressure block; there are 12 heating tubes, of which 6 are arranged in the first heat-conducting pressure block and the other 6 are arranged in the second heat-conducting pressure block.

[0026] The above scheme, with the configuration of the first heat-conducting pressure block, the second heat-conducting pressure block, and a total of 12 heating tubes (evenly distributed), ensures that the product is heated evenly on both the top and bottom surfaces and that the temperature field is symmetrical. This minimizes new thermal stress or deformation caused by temperature differences, making it particularly suitable for high-precision flatness shaping requirements and achieving symmetrical and balanced heating.

[0027] In some embodiments, the first heat-conducting pressure block is fixedly connected to the first shaping block by a plurality of third fasteners, and the second heat-conducting pressure block is fixedly connected to the second shaping block by a plurality of fourth fasteners.

[0028] The above scheme allows the first and second shaping blocks to be disassembled and maintained independently, providing high flexibility and facilitating repairs or cavity modifications for individual shaping blocks.

[0029] In some embodiments, the heat-conducting module is made of a metal material with a higher thermal conductivity than the shaping module.

[0030] By adopting the above solution and using high thermal conductivity materials as the heat conduction module, heat can be transferred from the heating tube to the shaping module quickly and with low loss, reducing heat loss during the conduction process, improving heating speed and temperature uniformity, and achieving the goals of energy saving and precise temperature control.

[0031] (III) Beneficial Effects

[0032] Compared with the prior art, this utility model designs a shell heat-forming fixture.

[0033] (1) This utility model uses active heating to increase the plasticity, improve the fluidity and reduce the yield strength of the workpiece material at high temperature. This makes the shaping operation more labor-saving and the deformation more uniform. It can significantly reduce residual stress and springback from the source, thereby obtaining higher and more stable shaping accuracy (such as 0.05mm flatness) and may eliminate the expensive intermediate annealing process, improve efficiency and reduce costs.

[0034] (2) The heating tube selected in this utility model is a mature, stable and controllable heat source; the locking plate is fixed on the side of the heat conduction module, rather than the bottom or other positions, realizing the side heating layout. The heat is conducted laterally to the working surface of the shaping module through the heat conduction module. The structure is compact, does not occupy the workpiece operating space, and is convenient for the installation, maintenance and replacement of the heating tube.

[0035] (3) The present invention has a firm and reliable connection and is detachable through the setting of the first fastener and the second fastener, which facilitates the assembly, debugging and maintenance of the tooling; when the shaping module is worn, the locking plate and heating tube can be easily removed from the heat conduction module for repair or replacement, which improves the service life and flexibility of the tooling.

[0036] (4) When the locking plate is installed, the positioning column can quickly and accurately guide it to the correct position, preventing the heating tube from being misaligned with the mounting hole on the heat conduction module due to installation deviation, or affecting the heat conduction efficiency, thus ensuring the accuracy and consistency of tooling assembly, and ensuring assembly accuracy and repeatability.

[0037] (5) The heat of this utility model is generated directly from the inside of the heat-conducting module and diffuses outward. The heat transfer path is short and the thermal efficiency is high. It can ensure that the working surface temperature of the shaping module is uniform, avoid local overheating or insufficient heating, and thus ensure the uniformity of the shaping effect. It realizes efficient and uniform internal heating.

[0038] (6) The present invention locks the heating tube from the bottom with the second fastener, which can effectively prevent the heating tube from loosening, shifting or even falling off under long-term vibration or thermal expansion and contraction, avoid heating failure or safety accidents caused by poor contact of the heating tube, ensure the continuity and safety of production, and thus improve the safety and stability of the equipment. Attached Figure Description

[0039] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a shell heat-forming fixture according to the present invention;

[0041] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0042] Figure 3 This is a cross-sectional view of a shell heat-forming fixture according to the present invention;

[0043] Figure 4 This is an exploded view of a shell heat-forming fixture according to the present invention;

[0044] Figure 5 This is an exploded view of the shaping module of this utility model.

[0045] The component names corresponding to the various reference numerals in the figure are as follows: 100, Shaping module; 101, First shaping block; 1011, First working surface; 1012, First non-working surface; 102, Second shaping block; 1021, Second working surface; 1022, Second non-working surface; 200, Heat-conducting module; 201, Positioning post; 202, Mounting hole; 203, First heat-conducting pressure block; 204, Second heat-conducting pressure block; 205, Third fastener; 206, Fourth fastener; 300, Heating and fixing module; 301, Heating tube; 302, Locking plate; 3021, Positioning hole; 3022, Through hole; 303, First fastener; 304, Second fastener. Detailed Implementation

[0046] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] It should be noted that the following description covers various aspects of embodiments within the scope of the appended claims. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0050] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0051] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0052] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0053] like Figures 1-5 As shown, this utility model provides a shell thermal forming fixture, including a forming module 100 whose working surface matches the product shape; a heat-conducting module 200, which is fitted onto the non-working surface of the forming module 100; and a heating and fixing module 300, which is arranged on the heat-conducting module 200 to provide a heat source and conduct heat to the heat-conducting module 200. Using the above solution, by actively heating, the plasticity of the workpiece material to be formed increases, its fluidity improves, and its yield strength decreases at high temperatures. This makes the forming operation less labor-intensive and the deformation more uniform, significantly reducing residual stress and springback from the source, thereby achieving higher and more stable forming accuracy (such as achieving 0.05mm flatness), and potentially eliminating the expensive intermediate annealing process, improving efficiency and reducing costs.

[0054] In some embodiments, the heating and fixing module 300 includes 12 heating tubes 301 and two locking plates 302 for fixing the heating tubes 301. The locking plates 302 are fixedly connected to the side of the heat-conducting module 200. Using the above solution, the heating tubes 301 are a mature, stable, and controllable heat source; fixing the locking plates 302 to the side of the heat-conducting module 200, rather than the bottom or other positions, achieves a lateral heating layout. Heat is laterally conducted to the working surface of the shaping module 100 through the heat-conducting module 200. The structure is compact, does not occupy workpiece operating space, and facilitates the installation, maintenance, and replacement of the heating tubes 301.

[0055] In some embodiments, each locking plate 302 is fixedly connected to the side of the heat-conducting module 200 by three first fasteners 303; each heating tube 301 is fixed to the locking plate 302 by a second fastener 304. The three first fasteners 303 are arranged along the length of the locking plate 302, with two at both ends and the remaining one in the middle. Using this scheme, the connection is secure, reliable, and detachable through the first fasteners 303 and the second fasteners 304, facilitating the assembly, debugging, and subsequent maintenance of the tooling. When the shaping module 100 wears down, the locking plate 302 and the heating tube 301 can be easily removed from the heat-conducting module 200 for repair or replacement, improving the tooling's service life and flexibility.

[0056] In some embodiments, a plurality of positioning posts 201 are arranged on the side of the heat-conducting module 200, and the locking plate 302 is provided with positioning holes 3021 that can be adapted to the positioning posts 201. Specifically, the positioning posts 201 penetrate the heat-conducting module 200 through the side of the heat-conducting module 200, and the positioning holes 3021 of the locking plate 302 cooperate with the positioning posts 201 extending out of the heat-conducting module 200. With the above solution, when installing the locking plate 302, the positioning posts 201 can quickly and accurately guide it to the correct position, preventing misalignment between the heating tube 301 and the mounting holes 202 on the heat-conducting module 200 due to installation deviation, or affecting the heat conduction efficiency, thus ensuring the accuracy and consistency of tooling assembly, and ensuring assembly precision and repeatability.

[0057] In some embodiments, the heat-conducting module 200 includes 12 mounting holes 202 extending through its side for mounting 12 heating tubes 301, with the 12 heating tubes 301 equally spaced vertically; the mounting holes 202 are spaced apart along the length of the heat-conducting module 200. Using this scheme, heat is generated directly from inside the heat-conducting module 200 and diffuses outward, resulting in a short heat transfer path and high thermal efficiency. This ensures uniform temperature on the working surface of the shaping module 100, avoiding localized overheating or underheating, thereby guaranteeing the uniformity of the shaping effect and achieving efficient and uniform internal heating. In some embodiments, the locking plate 302 includes a through hole 3022 coaxially arranged with the mounting holes 202, with part of the heating tube 301 placed within the through hole 3022 and part within the mounting hole 202. Specifically, the second fastener 304 penetrates the bottom surface of the locking plate 302 and extends into the through hole 3022 to fix the heating tube 301 within the through hole 3022, thereby limiting the shaking and displacement of the heating tube 301. By employing the above solution, the heating tube 301 is locked from the bottom by the second fastener 304, effectively preventing the heating tube 301 from loosening, shifting, or even falling off under long-term vibration or thermal expansion and contraction. This avoids heating failure or safety accidents caused by poor contact of the heating tube 301, ensuring the continuity and safety of production, and thus improving the safety and stability of the equipment.

[0058] In some embodiments, the shaping module 100 includes a first shaping block 101 and a second shaping block 102 arranged vertically. The first shaping block 101 includes a first working surface 1011 near one end of the second shaping block 102; the second shaping block 102 includes a second working surface 1021 near one end of the first shaping block 101; the first working surface 1011 and the second working surface 1021 respectively match the shapes of the two sides of the product. By using the above solution, by simultaneously clamping the two sides of the product with the first shaping block 101 and the second shaping block 102, simultaneous heating and pressure shaping on both sides can be achieved. This is particularly effective for parts that require simultaneous correction of the upper and lower surface shapes, further offsetting stress, reducing deformation, and improving shaping efficiency and symmetry accuracy. In some embodiments, the first shaping block 101 includes a first non-working surface 1012 away from one end of the second shaping block 102, and the second shaping block 102 includes a second non-working surface 1022 away from one end of the first shaping block 101; the heat-conducting module 200 includes a first heat-conducting pressing block 203 and a second heat-conducting pressing block 204; wherein the first heat-conducting pressing block 203 is in close contact with the first non-working surface 1012 of the first shaping block 101, and the second heat-conducting pressing block 204 is in close contact with the second non-working surface 1022 of the second shaping block 102. Specifically, there are two locking blocks, respectively arranged on the sides of the first heat-conducting pressure block 203 and the second heat-conducting pressure block 204; there are 12 heating tubes 301, with 6 arranged inside the first heat-conducting pressure block 203 and the other 6 arranged inside the second heat-conducting pressure block 204; the first heat-conducting pressure block 203 and the second heat-conducting pressure block 204 are each provided with 2 positioning posts 201, and each locking block is provided with 2 positioning holes 3021. Using the above scheme, the configuration of the first heat-conducting pressure block 203, the second heat-conducting pressure block 204, and a total of 12 heating tubes 301 (evenly distributed) ensures uniform heating on both the upper and lower surfaces of the product, a symmetrical temperature field, and minimizes new thermal stress or deformation caused by temperature differences. It is particularly suitable for high-precision flatness shaping requirements, achieving symmetrical and balanced heating.

[0059] In some embodiments, the first heat-conducting pressure block 203 is fixedly connected to the first shaping block 101 by four third fasteners 205, and the second heat-conducting pressure block 204 is fixedly connected to the second shaping block 102 by four fourth fasteners 206. This design allows the first shaping block 101 and the second shaping block 102 to be independently disassembled and maintained, offering high flexibility and facilitating repair or cavity modification of a single shaping block. In some embodiments, the heat-conducting module 200 is made of a metal material with a higher thermal conductivity than the shaping module 100. By using a high thermal conductivity material as the heat-conducting module 200, heat can be quickly and with low loss transferred from the heating tube 301 to the shaping module 100, reducing heat loss during conduction, improving heating speed and temperature uniformity, and achieving energy saving and precise temperature control.

[0060] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0061] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A shell heat forming fixture, characterized in that: include The shaping module (100) has a working surface that matches the shape of the product; A heat-conducting module (200) is attached to the non-working surface of the shaping module (100); In addition, a heating and fixing module (300) is arranged on the heat-conducting module (200) for providing a heat source and conducting heat to the heat-conducting module (200).

2. The shell heat forming fixture according to claim 1, characterized in that: The heating and fixing module (300) includes a plurality of heating tubes (301) and a locking plate (302) for fixing the heating tubes (301), the locking plate (302) being fixedly connected to the side of the heat-conducting module (200).

3. The shell heat forming fixture according to claim 2, characterized in that: The locking plate (302) is fixedly connected to the side of the heat-conducting module (200) by a number of first fasteners (303); the heating tube (301) is fixed to the locking plate (302) by a number of second fasteners (304).

4. The shell heat forming fixture according to claim 2, characterized in that: The heat-conducting module (200) is provided with a plurality of positioning posts (201), and the locking plate (302) is provided with positioning holes (3021) that can be adapted to the positioning posts (201).

5. The shell heat forming fixture according to claim 2, characterized in that: The heat-conducting module (200) includes a plurality of mounting holes (202) arranged through its side for mounting a plurality of heating tubes (301), and the plurality of mounting holes (202) are spaced apart along the length of the heat-conducting module (200).

6. The shell heat forming fixture according to claim 5, characterized in that: The locking plate (302) includes a through hole (3022) arranged coaxially with the mounting hole (202), and the heating tube (301) is partially placed in the through hole (3022) and partially placed in the mounting hole (202).

7. The shell heat forming fixture according to claim 1, characterized in that: The shaping module (100) includes a first shaping block (101) and a second shaping block (102) arranged vertically. The first shaping block (101) includes a first working surface (1011) near one end of the second shaping block (102). The second shaping block (102) includes a second working surface (1021) near one end of the first shaping block (101). The first working surface (1011) and the second working surface (1021) are respectively matched with the two sides of the product.

8. The shell heat forming fixture according to claim 7, characterized in that: The first shaping block (101) includes a first non-working surface (1012) away from the end of the second shaping block (102), and the second shaping block (102) includes a second non-working surface (1022) away from the end of the first shaping block (101); the heat-conducting module (200) includes a first heat-conducting pressure block (203) and a second heat-conducting pressure block (204); wherein the first heat-conducting pressure block (203) is in close contact with the first non-working surface (1012) of the first shaping block (101), and the second heat-conducting pressure block (204) is in close contact with the second non-working surface (1022) of the second shaping block (102).

9. The shell heat forming fixture according to claim 8, characterized in that: The first heat-conducting pressure block (203) is fixedly connected to the first shaping block (101) by a number of third fasteners (205), and the second heat-conducting pressure block (204) is fixedly connected to the second shaping block (102) by a number of fourth fasteners (206).

10. The shell heat forming fixture according to any one of claims 1-9, characterized in that: The heat-conducting module (200) is made of a metal material with a higher thermal conductivity than the shaping module (100).

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