A shaping device and method for the cavity structure of an electronic device.

Abstract

This invention discloses a shaping device and method for an electronic device cavity structure, comprising an upper mold and a lower mold that can be interlocked. The upper mold is provided with a limiting cover, and the limiting cover has a shaping groove. The lower mold is provided with a limiting base plate, a shaping component, and a driving component. The limiting base plate has a movable groove, and the shaping component includes a shaping part that is slidably mounted in the movable groove and passes through the limiting base plate. When the upper mold and the lower mold are interlocked, a shaping space for placing the cavity structure to be shaped is formed between the limiting cover and the limiting base plate. The shaping part extends into the shaping space through the limiting base plate. The driving component drives the shaping component to slide in the movable groove to apply pressure to the cavity structure for shaping. This invention shapes the cavity product from the inner wall and demolds it from the inner wall of the cavity product, making it less likely to damage the cavity product during demolding.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy cavity structure shaping technology, and in particular to a shaping device and method for electronic device cavity structures. Background Technology

[0002] With social progress and development, consumers have greatly increased their requirements for product appearance and efficacy, leading to a trend towards simpler appearances and more complex and aesthetically pleasing details. This, in turn, increases the difficulty of shaping processed products, resulting in a rise in the human and material costs of structural processing.

[0003] For common thin-walled cavity products with multiple sides, such as hexahedrons, traditional forming processes often result in overall deformation or damage of the thin walls of the processed product after CNC machining due to factors such as machining stress, stress release, and demolding from the outer wall of the cavity product. This traditional forming process has many uncontrollable factors, making it difficult to improve the yield rate, leading to increased processing costs and time, which is detrimental to economic benefits. Summary of the Invention

[0004] The purpose of this invention is to provide a shaping device and method for the cavity structure of an electronic device, which shapes the cavity product from the inner wall and removes the film from the inner wall of the cavity product, without easily damaging the cavity product during the removal of the film.

[0005] This invention provides a shaping device for the cavity structure of an electronic device, including an upper mold and a lower mold that can be interlocked. The upper mold is provided with a limiting cover, and the limiting cover has a shaping groove. The lower mold is provided with a limiting base plate, a shaping component, and a driving component. The limiting base plate has a movable groove. The shaping component includes a shaping part, and the shaping part includes a connecting part and a shaping part. The connecting part is connected to the driving component. The shaping part is slidably installed in the movable groove and passes through the limiting base plate.

[0006] When the upper mold and the lower mold are engaged, a shaping space is formed between the limiting cover and the limiting base plate for placing the cavity structure to be shaped. The shaping part extends into the shaping space through the limiting base plate. The driving component is used to drive the shaping component to slide in the movable groove to apply pressure to the cavity structure for shaping.

[0007] Furthermore, the shaping component includes a first shaping component and a second shaping component, wherein the shaping parts of the first shaping component and the second shaping component have different shapes.

[0008] Furthermore, the number of the first shaping components is set to four, and the shape of the shaping part of the first shaping component is set to correspond to the shape of the diagonal of the inner sidewall of the cavity structure; the number of the second shaping components is set to four, and the shape of the shaping part of the second shaping component is set to correspond to the shape of the side of the inner sidewall of the cavity structure; the first shaping components and the second shaping components are alternately arranged.

[0009] Further, the shaping component includes a shaping state and a storage state; the first shaping member is provided with a first limiting protrusion, a first limiting groove, and an abutting protrusion, the first limiting protrusion is disposed on the side of the first shaping member away from the cavity structure, the first limiting groove is respectively disposed on both sides of the first limiting protrusion, and the abutting protrusion is formed on the side of the first limiting groove away from the first limiting protrusion; the second shaping member is provided with a second limiting protrusion and a third limiting protrusion, the second limiting protrusion is disposed on the side of the second shaping member away from the cavity structure, and the third limiting protrusion is disposed on both sides of the second shaping member; when the shaping component is in the shaping state, the shaping parts of the four first shaping members and the shaping parts of the four second shaping members respectively abut against the inner sidewall of the cavity structure, and the third limiting protrusion abuts against the abutting protrusion on the adjacent first shaping member; when the shaping component is in the storage state, the third limiting protrusions on both sides of the second shaping member are respectively inserted into the first limiting groove on the adjacent first shaping member.

[0010] Furthermore, the driving assembly includes a shaping driving mechanism and a sliding mechanism. The first shaping component and the second shaping component are respectively provided with sliding mechanisms between them and the lower mold. The first shaping component and the second shaping component are slidably disposed on the lower mold through the sliding mechanisms. When the upper mold and the lower mold are engaged with each other, the shaping driving mechanism is used to drive the first shaping component and the second shaping component to move closer to or away from the inner wall of the cavity structure.

[0011] Furthermore, the shaping drive mechanism is disposed below the limiting base plate, and the shaping drive mechanism includes a lifting mechanism and at least two horizontal drive mechanisms; the lifting mechanism is used to drive the first shaping part and the second shaping part to move towards the inner wall of the cavity structure; the horizontal drive mechanisms are respectively used to drive the connecting parts of the first shaping part and the second shaping part to move away from the inner wall of the cavity structure on the sliding mechanism.

[0012] Furthermore, the lifting mechanism includes a lifting member disposed below the shaping groove. The side wall of the lifting member is provided with a first lifting inclined surface and a second lifting inclined surface, respectively. The first shaping member is provided with a first guide inclined surface corresponding to the first lifting inclined surface, and the second shaping member is provided with a second guide inclined surface corresponding to the second lifting inclined surface.

[0013] The lifting member is used to push the shaping parts of the first shaping member and the second shaping member to press against the inner wall of the cavity structure. The first lifting inclined surface and the first guide inclined surface are used to slide against each other to bring the first shaping member closer to the inner wall of the cavity structure. The second lifting inclined surface and the second guide inclined surface are used to slide against each other to bring the first shaping member closer to the inner wall of the cavity structure.

[0014] Furthermore, the lower mold is provided with a vertical guide block, which passes through the limiting base plate. A mold closing spring is provided between the limiting base plate and the lower mold, and the mold closing spring is used to provide shaping pressure for shaping the cavity structure.

[0015] Furthermore, the limiting base plate is provided with a positioning component, the positioning component including at least one positioning block, the positioning block being disposed on the side of the limiting base plate near the limiting cover; the cap is provided with a positioning groove corresponding to the positioning block on the side near the limiting base plate; when the upper mold and the lower mold are closed, the positioning block is inserted into the positioning groove.

[0016] The present invention also provides a method for shaping the cavity structure of an electronic device, comprising the following steps:

[0017] S0. Provide the above-mentioned shaping device.

[0018] S1. Place the cavity structure that needs to be shaped onto the shaping component.

[0019] S2. The first shaping component and the second shaping component are controlled to move away from the inner wall of the cavity structure by the driving component, and the upper mold and the lower mold are controlled to engage with each other to form a shaping space.

[0020] S3. The first shaping member and the second shaping member are driven by the driving component to press against the inner wall of the cavity structure respectively.

[0021] S4. Control the upper mold and the lower mold to shape the cavity structure.

[0022] S5. The first shaping component and the second shaping component are driven by the driving component to move away from the inner wall of the cavity structure, thereby detaching the first shaping component and the second shaping component from the inner wall of the cavity structure, completing the demolding of the cavity structure, and separating the upper mold and the lower mold. The beneficial effects of this invention are: by controlling the closing of the upper mold and the lower mold, a shaping space for shaping the cavity structure is formed between the shaping groove on the limiting cover and the limiting base plate. The driving component controls the first shaping component and the second shaping component to shape the inner wall of the cavity structure within this shaping space. After shaping, the driving component can be used again to control the first shaping component and the second shaping component to detach from the cavity structure. This is equivalent to demolding the cavity structure from the inside, making it less likely for the inner wall of the cavity structure to deform or be damaged during demolding, thus improving the yield rate. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but should not be construed as limiting the invention.

[0024] In the picture:

[0025] Figure 1 This is a schematic diagram of the shaping device in the mold-opening state in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the shaping device in the mold-closing state in an embodiment of the present invention.

[0027] Figure 3 This is a front view structural diagram of the shaping device in the open state in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the split structure of the shaping device from a first-view perspective in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the split structure of the shaping device from a second perspective in an embodiment of the present invention.

[0030] Figure 6 This is a cross-sectional structural diagram of the limiting cover, limiting base plate, shaping component and lifting component in an embodiment of the present invention.

[0031] Figure 7 This is a first-view structural diagram of the shaping component and shaping drive mechanism in an embodiment of the present invention.

[0032] Figure 8 This is a second-view structural diagram of the shaping component and the shaping drive mechanism in an embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the structure of the first shaping component in an embodiment of the present invention.

[0034] Figure 10 This is a schematic diagram of the structure of the long-side shaping component in an embodiment of the present invention.

[0035] Figure 11 This is a schematic diagram of the structure of the short-side shaping component in an embodiment of the present invention.

[0036] Figure 12 This is a schematic diagram of the shaping component in the shaping state in an embodiment of the present invention.

[0037] Figure 13 This is a schematic diagram of the shaping component in a stored state in an embodiment of the present invention.

[0038] Figure 14 This is a schematic diagram of the structure of the limiting cover in an embodiment of the present invention.

[0039] Figure 15 This is a schematic diagram of the lifting component in an embodiment of the present invention.

[0040] Figure 16 This is a schematic diagram of the limiting base plate and positioning block in an embodiment of the present invention.

[0041] Reference numerals: 1. Upper mold; 11. Limiting cover; 111. Shaping groove; 2. Lower mold; 21. Limiting base plate; 210. Movable groove; 22. Shaping assembly; 220a. Connecting part; 220. Shaping part; 221. First shaping part; 221a. First limiting protrusion; 221b. First limiting groove; 221c. Abutting protrusion; 221d. First guide slope; 222e. Long side shaping part; 222f. Short side shaping part; 222g. Second limiting protrusion 222h, third limiting protrusion; 222i, second guide slope; 23, vertical guide block; 24, mold closing spring; 25, mounting base plate; 26, mold closing guide assembly; 31, lifting mechanism; 311, lifting component; 311a, first lifting slope; 311b, second lifting slope; 32, horizontal drive mechanism; 41, slide rail; 51, positioning block; 511, first positioning slope; 52, positioning groove; 521, second positioning slope; 6, cavity structure. Detailed Implementation

[0042] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0043] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0044] Please see Figures 1-5 A shaping device for the cavity structure of electronic devices includes an upper mold 1 and a lower mold 2 that can be interlocked. The upper mold 1 is provided with a limiting cover 11, and the limiting cover 11 is provided with a shaping groove 111. The lower mold 2 is provided with a limiting base plate 21, a shaping component 22, and a driving component. The limiting base plate 21 has a movable groove 210. The shaping component includes a shaping part, which includes a connecting part 220a and a shaping part 220. The connecting part 220a is connected to the driving component. The shaping part 220 is slidably installed in the movable groove 210 and passes through the limiting base plate 21. This shaping device is used for shaping the cavity structures of aluminum alloy shells, protective cases, and other electronic devices such as mobile phones and electronic cigarettes.

[0045] When the upper mold 1 and the lower mold 2 are engaged, a shaping space is formed between the limiting cover 11 and the limiting base plate 21 for placing the cavity structure to be shaped. The shaping part 220 passes through the limiting base plate 21 and extends into the shaping space. The driving component is used to drive the shaping component 22 to slide in the movable groove 210 to apply pressure to the cavity structure 6 for shaping.

[0046] The above configuration, by controlling the closing of the upper mold 1 and the lower mold 2, creates a shaping space between the shaping groove 111 on the limiting cover 11 and the limiting base plate 21 for shaping the cavity structure 6. The driving component controls the shaping part to slide within the movable groove 210, applying pressure to the inner wall of the cavity structure 6 for shaping. After shaping, the driving component can be used again to control the shaping part to detach from the cavity structure 6. This is equivalent to demolding the cavity structure 6 from the inside, which reduces the risk of deformation or damage to the inner wall of the cavity structure 6 during demolding, thereby improving the yield rate.

[0047] Specifically, please refer to Figure 16 The limiting base plate 21 is also provided with an avoidance groove. The avoidance groove is recessed into the top surface of the limiting base plate 21, corresponding to the outer edge shape of the limiting cover 11. When the upper mold 1 and the lower mold 2 are engaged with each other, the avoidance groove can guide and limit the limiting cover 11.

[0048] Specifically, please refer to Figures 1-3 The lower mold 2 is also provided with a mounting base plate 25, and the limiting base plate 21, the shaping component 22 and the driving component are disposed on the mounting base plate 25.

[0049] Specifically, please refer to Figure 1 and Figure 2A plurality of mold closing guide components 26 are provided between the upper mold 1 and the lower mold 2. Each mold closing guide component 26 includes a guide rod and a rod sleeve. The guide rod is movably disposed in the rod sleeve and plays a guiding role when the upper mold 1 and the lower mold 2 are closed.

[0050] Furthermore, the shaping component includes a first shaping component 221 and a second shaping component, wherein the shaping portions 220 of the first shaping component and the second shaping component have different shapes.

[0051] Specifically, the first shaping member 221 and the second shaping member are respectively provided with shaping parts 220 of different shapes for shaping the cavity structure 6; when shaping the cavity structure 6, the opening of the cavity structure 6 is located on the side of the shaping space near the limiting base plate 21, and the shape formed by the shaping part 220 of the first shaping member 221 and the shaping part 220 of the second shaping member corresponds to the shape of the inner wall of the cavity structure 6.

[0052] The above configuration uses a first shaping member 221 and a second shaping member with different shapes to shape different parts of the inner wall of the cavity structure 6. When demolding is performed after shaping, the first shaping member 221 and the second shaping member demold from the inner wall of the cavity structure 6 respectively, avoiding the situation where the inner wall of the cavity structure 6 is deformed due to demolding a large area at once.

[0053] Further, please refer to Figure 12 and Figure 13 The number of the first shaping component 221 is set to four, and the shape of the shaping part 220 of the first shaping component 221 is set to correspond to the shape of the diagonal of the inner sidewall of the cavity structure 6; the number of the second shaping component is set to four, and the shape of the shaping part 220 of the second shaping component is set to correspond to the shape of the side of the inner sidewall of the cavity structure 6; the first shaping component 221 and the second shaping component are alternately arranged.

[0054] The cavity structure 6 is a hexahedral structure with an opening on one side. In this embodiment, the cavity structure 6 is a three-dimensional structure similar to a cuboid. Therefore, the four second shaping members include two long-side shaping members 222e and two short-side shaping members 222f.

[0055] Further, please refer to Figure 12 and Figure 13The shaping component 22 includes a shaping state and a storage state; the first shaping component 221 is provided with a first limiting protrusion 221a, a first limiting groove 221b and an abutting protrusion 221c, the first limiting protrusion 221a is disposed on the side of the first shaping component 221 away from the cavity structure 6, the first limiting groove 221b is respectively disposed on both sides of the first limiting protrusion 221a, and the abutting protrusion 221c is formed on the side of the first limiting groove 221b away from the first limiting protrusion 221a; the second shaping component is provided with a second limiting protrusion 222g and a third limiting protrusion 222h, the second limiting protrusion 222g is disposed on the side of the second shaping component away from the cavity structure 6, and the third limiting protrusion 222h is disposed on both sides of the second shaping component.

[0056] Please see Figure 12 When the shaping component 22 is in the shaping state, the shaping portions 220 of the four first shaping members 221 and the shaping portions 220 of the four second shaping members abut against the inner sidewall of the cavity structure 6, and the third limiting protrusion 222h abuts against the abutting protrusion 221c on the adjacent first shaping member 221.

[0057] Specifically, the sidewalls of the shaping portion 220 of the first shaping member 221 and the sidewalls of the shaping portion 220 of the second shaping member abut against each other, and the shaping portions 220 of the first shaping member 221 and the shaping portions 220 of the second shaping member are alternately arranged to form the inner sidewall shape corresponding to the cavity structure 6; that is, the shape formed by the four shaping portions 220 of the first shaping member 221 and the four shaping portions 220 of the second shaping member is consistent with the inner sidewall shape of the cavity structure 6, and there is no gap between the first shaping member 221 and the second shaping member, they are closely adjacent.

[0058] Please see Figure 13 When the shaping component 22 is in the storage state, the third limiting protrusions 222h on both sides of the second shaping component are respectively inserted into the first limiting grooves 221b on the adjacent first shaping component 221.

[0059] With the above configuration, when the shaping component 22 is in the shaping state, the alternately arranged first shaping member 221 and second shaping member abut against each other to ensure the shaping effect on the inner wall of the cavity structure 6; when the shaping component 22 is in the storage state, the alternately arranged first shaping member 221 and second shaping member are staggered, so that the first shaping member 221 and second shaping member will not interfere with each other during demolding, and demolding can be carried out smoothly.

[0060] Furthermore, the driving assembly includes a shaping driving mechanism and a sliding mechanism. The first shaping component 221 and the second shaping component are respectively provided with sliding mechanisms between them and the lower mold 2. The first shaping component 221 and the second shaping component are respectively slidably disposed on the lower mold 2 through the sliding mechanisms. When the upper mold 1 and the lower mold 2 are engaged with each other, the shaping driving mechanism is used to drive the first shaping component 221 and the second shaping component to move closer to or away from the inner wall of the cavity structure 6.

[0061] The sliding mechanism includes a groove and a slide rail 41 with a structure corresponding to the groove. The lower ends of the first shaping member 221 and the second shaping member are respectively provided with a groove and / or a slide rail 41 corresponding to the groove structure. The lower mold 2 is provided with a groove and / or a slide rail 41 corresponding to the first shaping member 221 and the second shaping member respectively. The slide rail 41 and the groove structure are slidably engaged.

[0062] In this embodiment, please refer to Figures 9-11 The lower end of the first shaping component 221 is provided with a slide rail 41, and a corresponding slide groove is provided on the mounting base 25; the lower end of the long-side shaping component 222e is provided with a slide groove, and a corresponding slide rail 41 is provided on the mounting base 25; the lower end of the short-side shaping component 222f is provided with a slide rail 41, and a corresponding slide groove is provided on the mounting base 25. The slide rail 41 and the slide groove have an I-shaped cross-section.

[0063] Further, please refer to Figures 3-5 The shaping drive mechanism is located below the limiting base plate 21. The shaping drive mechanism includes a lifting mechanism 31 and at least two horizontal drive mechanisms 32. The lifting mechanism 31 is used to drive the first shaping member 221 and the second shaping member to move towards the inner wall of the cavity structure 6. The horizontal drive mechanisms 32 are respectively used to drive the connecting parts of the first shaping member 221 and the second shaping member to move away from the inner wall of the cavity structure 6 on the sliding mechanism.

[0064] With the above configuration, during the shaping process, the shaping drive mechanism pushes the first shaping component 221 and the second shaping component toward the inner wall of the cavity structure 6 to perform the shaping action; during the demolding process, the horizontal drive mechanism 32 drives the connecting parts of the first shaping component 221 and the second shaping component to move away from the inner wall of the cavity structure 6 on the sliding mechanism to complete the demolding action. The shaping drive mechanism and the horizontal drive mechanism 32 separate the two actions.

[0065] Further, please refer to Figure 6 , Figures 9-11 and Figure 15 The lifting mechanism 31 includes a lifting member 311 disposed below the shaping groove 111. The side wall of the lifting member 311 is provided with a first lifting inclined surface 311a and a second lifting inclined surface 311b. The first shaping member 221 is provided with a first guide inclined surface 221d corresponding to the first lifting inclined surface 311a, and the second shaping member is provided with a second guide inclined surface 222i corresponding to the second lifting inclined surface 311b.

[0066] The lifting member 311 is used to push the first shaping member 221 and the shaping part 220 of the second shaping member to press against the inner wall of the cavity structure 6. The first lifting inclined surface 311a and the first guide inclined surface 221d are used to slide against each other to bring the first shaping member 221 closer to the inner wall of the cavity structure 6. The second lifting inclined surface 311b and the first guide inclined surface 222i are used to slide against each other to bring the first shaping member 221 closer to the inner wall of the cavity structure 6.

[0067] Specifically, the first lifting inclined surface 311a slidably abuts against the first guide inclined surface 221d, and the second lifting inclined surface 311b slidably abuts against the guide inclined surface 222i. The first lifting inclined surface 311a and the second lifting inclined surface 311b on the lifting member 311 have different horizontal heights, allowing the first shaping member 221 and the second shaping member to approach the inner wall of the cavity structure 6 at different times. Therefore, when the first shaping member 221 and the second shaping member abut against the inner wall of the cavity structure 6, the shape formed by the shaping portions 220 of all the first shaping members 221 and the second shaping members matches the shape of the inner wall of the cavity structure 6, thereby ensuring the shaping effect on the inner wall of the cavity structure 6.

[0068] Further, please refer to Figures 3-5 The lower mold 2 is provided with a vertical guide block 23, which passes through the limiting base plate 21. A mold closing spring 24 is provided between the limiting base plate 21 and the lower mold 2. The mold closing spring 24 is used to provide shaping pressure for shaping the cavity structure 6.

[0069] Specifically, please refer to Figure 3 and Figure 6 The mold-closing spring 24 is disposed between the bottom surfaces of the lower mold 2 and the mounting base plate 25. The vertical guide block 23 is disposed on the lower mold 2, and the end of the vertical guide block 23 passes through the mounting base plate 25 and the limiting base plate 21 in sequence. The lifting member 311 is fixedly mounted on the lower mold 2, and the end of the lifting member 311 passes through the mounting base plate 25.

[0070] With the above configuration, during the molding process, the limiting base plate 21, driven by the upper mold 1, compresses the molding spring 24 and moves downward along the vertical guide block 23. The lifting member 311 pushes the first shaping member 221 and the second shaping member respectively, thereby pressing their respective shaping parts against the inner wall of the cavity structure 6, thus enabling the shaping of the cavity structure 6.

[0071] Further, please refer to Figure 14 and Figure 16 Please refer to the cap positioning assembly provided on the limiting base plate 21. The cap positioning assembly includes at least one positioning block 51. The positioning block 51 is disposed on the side of the limiting base plate 21 near the limiting cover 11. The cap is provided with a positioning groove 52 corresponding to the positioning block 51 on the side near the limiting base plate 21. When the upper mold 1 and the lower mold 2 are closed, the positioning block 51 is inserted into the positioning groove 52.

[0072] With the above configuration, when the upper mold 1 is driven to close the lower mold 2, the positioning block 51 on the limiting base plate 21 is inserted into the positioning groove 52 on the limiting cover 11. The first positioning inclined surface 511 on the positioning block 51 and the second positioning inclined surface 521 in the positioning groove 52 abut against each other and slide relative to each other until the top surface of the positioning block 51 abuts against the bottom surface of the positioning groove 52. At this time, the upper mold 1 and the lower mold 2 are in contact with each other, but the forming has not yet begun. In this way, the positional displacement of the upper mold 1 and the lower mold 2 during mold closing can be avoided through the cooperation of the positioning block 51 and the positioning groove 52.

[0073] The present invention also provides a method for shaping the cavity structure of an electronic device, comprising the following steps:

[0074] S0. Provide the above-mentioned shaping device.

[0075] S1. Place the cavity structure 6 that needs to be shaped on the shaping component 22; specifically, place the cavity structure 6 that needs to be shaped with its opening facing the first shaping component 221 and the second shaping component.

[0076] S2. The first shaping component 22 and the second shaping component 22 are controlled by the driving component to move away from the inner wall of the cavity structure 6, and the upper mold 1 and the lower mold 2 are controlled to engage with each other to form a shaping space. In this embodiment, the lower mold 2 is set to be relatively stationary, and the upper mold 1 is driven to move towards the lower mold 2 to perform mold closing.

[0077] Specifically, the shaping component 22 includes a shaping state and a storage state, and step S2 further includes the following steps:

[0078] S21. Drive the horizontal drive mechanism 32 corresponding to the second shaping member, causing the second shaping member to slide on the sliding mechanism in a direction away from the inner wall of the cavity structure 6.

[0079] S22, drive the horizontal drive mechanism 32 corresponding to the first shaping component 221, causing the first shaping component 221 to slide on the sliding mechanism in a direction away from the inner wall of the cavity structure 6. The third limiting protrusions 222h on both sides of each second shaping component are respectively inserted into the first limiting grooves 221b on the adjacent first shaping component 221. At this time, the shaping component 22 is in the storage state.

[0080] With the above configuration, when the shaping component 22 is in the retracted state, there is a gap between the first shaping component 221 and the second shaping component and the inner wall of the cavity structure 6. In this way, when the upper mold 1 and the lower mold 2 are closed, the gap can provide a certain error adjustment space.

[0081] S23. When the upper mold 1 is driven to close the lower mold 2, the positioning block 51 on the limiting base plate 21 is inserted into the positioning groove 52 on the limiting cover 11. The first positioning inclined surface 511 on the positioning block 51 and the second positioning inclined surface 521 in the positioning groove 52 abut against each other and slide relative to each other until the top surface of the positioning block 51 abuts against the bottom surface of the positioning groove 52. At this time, the upper mold 1 and the lower mold 2 are in contact with each other, but the forming has not yet begun. In this way, the positional displacement of the upper mold 1 and the lower mold 2 during mold closing can be avoided through the cooperation of the positioning block 51 and the positioning groove 52.

[0082] S3. The first shaping member 221 and the second shaping member are driven by the driving component to move closer to the inner wall of the cavity structure 6, thereby shaping the inner wall of the cavity structure 6.

[0083] In this embodiment, step S3 specifically includes the following steps:

[0084] S31. Drive the upper mold 1 to press down 1mm towards the lower mold 2, so that the limiting base plate 21 moves downward along the vertical guide block 23 to compress the mold closing spring 24 under the drive of the upper mold 1. At the same time, the first lifting inclined surface 311a and the first guide inclined surface 221d slide relative to each other, so that the four first shaping parts 221 move 1mm along the sliding mechanism towards the inner wall of the cavity structure 6.

[0085] S32. Drive the upper mold 1 to press down on the lower mold 2 by 3.5mm, so that the limiting base plate 21 moves downward along the vertical guide block 23 to compress the mold closing spring 24 under the drive of the upper mold 1. At the same time, the first lifting inclined surface 311a and the first guide inclined surface 221d slide relative to each other, and the second lifting inclined surface 311b and the 222i slide relative to each other, so that the four first shaping parts 221 and the four second shaping parts move 3.5mm towards the inner wall of the cavity structure 6 along the corresponding sliding mechanism. At this time, the shaping part 220 of the first shaping part 221 abuts against the diagonal of the inner wall of the cavity structure 6, and the first shaping part 221 reaches its maximum movement limit.

[0086] S33. Drive the upper mold 1 to press down on the lower mold 2 by 3.5mm, so that the limiting base plate 21 moves downward along the vertical guide block 23 to compress the mold closing spring 24 under the drive of the upper mold 1. At the same time, the second lifting inclined surface 311b and the 222i slide relative to each other, so that the four second shaping parts move 3.5mm along the corresponding sliding mechanism towards the inner wall of the cavity structure 6. At this time, the shaping part 220 of the second shaping part abuts against the side of the inner wall of the cavity structure 6, and the second shaping part reaches the maximum movement limit.

[0087] S4. Control the upper mold 1 and the lower mold 2 to shape the cavity structure 6; in this embodiment, step S4 specifically includes the following steps:

[0088] S41. Drive the upper mold 1 to press down on the lower mold 2 by 1.5mm to begin shaping the inner wall of the cavity structure 6.

[0089] S42. Drive the upper mold 1 to press down 2mm onto the lower mold 2 to complete the shaping of the inner wall of the cavity structure 6.

[0090] S5. The first shaping component 221 and the second shaping component are driven by the horizontal driving mechanism 32 to move away from the inner wall of the cavity structure 6, so that the first shaping component 221 and the second shaping component are separated from the inner wall of the cavity structure 6, thereby completing the demolding of the cavity structure 6 and separating the upper mold 1 and the lower mold 2.

[0091] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention 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 the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A shaping device for the cavity structure of an electronic device, characterized in that, The mould includes an upper mould and a lower mould which can be buckled to each other, the upper mould is provided with a limiting cover, the limiting cover is provided with a shaping groove; the lower mould is provided with a limiting bottom plate, a shaping assembly and a driving assembly, the limiting bottom plate is provided with a movable groove, the shaping assembly includes a shaping piece, the shaping piece includes a connecting part and a shaping part, the connecting part is connected with the driving assembly, the shaping part is slidably arranged in the movable groove and passes through the limiting bottom plate; The shaping piece includes a first shaping piece and a second shaping piece, the shaping parts of the first shaping piece and the second shaping piece are different in shape; The number of the first shaping piece is four, the shape of the shaping part of the first shaping piece corresponds to the shape of the opposite corners of the inner side wall of the cavity structure; the number of the second shaping piece is four, the shape of the shaping part of the second shaping piece corresponds to the shape of the side of the inner side wall of the cavity structure; the first shaping piece and the second shaping piece are alternately arranged; When the upper mould and the lower mould are buckled to each other, the limiting cover and the limiting bottom plate form a shaping space for placing the cavity structure to be shaped, the shaping part passes through the limiting bottom plate and extends into the shaping space, and the driving assembly is used for driving the shaping assembly to slide in the movable groove to apply pressure to the cavity structure for shaping.

2. The shaping device for electronic device cavity structures of claim 1, wherein, The shaping assembly includes a shaping state and a storage state; The first shaping piece is provided with a first limiting protrusion, a first limiting groove and an abutting protrusion, the first limiting protrusion is arranged on the side of the first shaping piece away from the cavity structure, the first limiting grooves are respectively arranged on the two sides of the first limiting protrusion, and the abutting protrusion is formed on the side of the first limiting groove away from the first limiting protrusion; The second shaping piece is provided with a second limiting protrusion and a third limiting protrusion, the second limiting protrusion is arranged on the side of the second shaping piece away from the cavity structure, and the third limiting protrusion is arranged on the two sides of the second shaping piece; When the shaping assembly is in the shaping state, the shaping parts of the four first shaping pieces and the four second shaping pieces respectively abut on the inner side wall of the cavity structure, and the third limiting protrusion abuts on the abutting protrusion on the adjacent first shaping piece; When the shaping assembly is in the storage state, the third limiting protrusions on the two sides of the second shaping piece are respectively inserted into the first limiting grooves on the adjacent first shaping pieces.

3. The shaping device for electronic device cavity structures of claim 2, wherein, The driving assembly includes a shaping driving mechanism and a sliding mechanism, the first shaping piece and the second shaping piece are respectively provided with a sliding mechanism between the first shaping piece, the second shaping piece and the lower mould, the first shaping piece and the second shaping piece are slidably arranged on the lower mould through the sliding mechanism, and when the upper mould and the lower mould are buckled to each other, the shaping driving mechanism is used for driving the first shaping piece and the second shaping piece to be close to or away from the inner side wall of the cavity structure.

4. The shaping device for electronic device cavity structures of claim 3, wherein, The shaping driving mechanism is arranged below the limiting bottom plate, and the shaping driving mechanism includes a jacking mechanism and at least two horizontal driving mechanisms; The jacking mechanism is used to drive the first shaping member and the second shaping member to move towards the inner wall of the cavity structure; the horizontal driving mechanism is used to drive the connecting part of the first shaping member and the second shaping member to move on the sliding mechanism away from the inner wall of the cavity structure, respectively.

5. The shaping device for electronic device cavity structures of claim 4, wherein, The jacking mechanism comprises a jacking member arranged below the shaping groove, and a first jacking slope and a second jacking slope are arranged on the side wall of the jacking member, respectively; a first guide slope corresponding to the first jacking slope is arranged on the first shaping member, and a second guide slope corresponding to the second jacking slope is arranged on the second shaping member. The jacking member is used to push the shaping part of the first shaping member and the second shaping member to be pressed on the inner side wall of the cavity structure; the first jacking slope and the first guide slope are used to slide against each other to make the first shaping member close to the inner side wall of the cavity structure; the second jacking slope and the second guide slope are used to slide against each other to make the first shaping member close to the inner side wall of the cavity structure. A vertical guide block is arranged on the lower die, and the vertical guide block passes through the limiting bottom plate; a die closing spring is arranged between the limiting bottom plate and the lower die, and the die closing spring is used to provide shaping pressure for the shaping of the cavity structure.

6. The shaping device for electronic device cavity structures of claim 1, wherein, A positioning assembly is arranged on the limiting bottom plate, and the positioning assembly comprises at least one positioning block arranged on the side of the limiting bottom plate close to the limiting cover; the limiting cover is provided with a positioning groove corresponding to the positioning block on the side close to the limiting bottom plate; when the upper die and the lower die are closed, the positioning block is inserted into the positioning groove.

7. The shaping device for electronic device cavity structures of claim 1, wherein, The method comprises the following steps:

8. A method of shaping a cavity structure for an electronic device, characterized by, S0, providing the shaping device according to any one of claims 1-7; S1, placing the cavity structure needing to be shaped on the shaping assembly; S2, controlling the first shaping member and the second shaping member to move away from the inner side wall of the cavity structure by the driving assembly, and controlling the upper die and the lower die to be buckled to each other to form a shaping space; S3, driving the first shaping member and the second shaping member to be pressed on the inner side wall of the cavity structure by the driving assembly, respectively; S4, controlling the upper die and the lower die to shape the cavity structure; S5, driving the first shaping member and the second shaping member to move away from the inner side wall of the cavity structure by the driving assembly, so that the first shaping member and the second shaping member are separated from the inner side wall of the cavity structure, the demolding of the cavity structure is completed, and the upper die and the lower die are separated. ​

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