Metal wire drawing imitating jig structure for plastic middle frame

Abstract

The utility model relates to the technical field of jigs, in particular to an imitation metal wiredrawing jig structure for a plastic middle frame, which comprises a base station, a support frame and a base, the base station is provided with an outer frame, the surface of the outer frame is provided with a clamping block and a clamping groove, and the surface of the outer frame is also provided with a limiting groove for preventing a mobile phone shell from sliding. One end of the outer frame is provided with a connecting assembly connected with a base station; the clamping blocks, the clamping grooves and the limiting grooves arranged on the surface of the outer frame jointly form a multiple positioning and locking mechanism, displacement and sliding of the mobile phone shell in the machining process are effectively prevented, and accurate alignment and uniformity of imitation metal wire drawing machining are guaranteed. The ingenious design of the connecting assembly enables the connection between the outer frame and the base table to be firm and convenient to disassemble, the overall performance and the operation convenience of the jig structure are further improved, and meanwhile, the traditional defects that wire drawing lines are disordered and the depth is not uniform in a wire drawing process by adopting an L angle of a plastic product are overcome by adopting chamfers.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to an imitation metal wire drawing jig structure for a plastic middle frame. Background Art

[0002] With the progress and development of technology and the continuous change of consumers' demands, the design of the middle frame of mobile phones is also constantly innovating. The existing middle frame of Samsung mobile phones uses aluminum alloy wire drawing, and the middle frame of Apple mobile phones uses titanium alloy wire drawing, making it a trend in the design of mobile phone middle frames. The maturity and wide application of the wire drawing process also include its role in increasing the added value of products and enhancing market competitiveness. However, it has the defect of high manufacturing cost.

[0003] Therefore, with the competition trend in the mobile phone market, terminals are promoting cost reduction solutions for mobile phone components. Currently, terminal and brand mobile phone manufacturers are all pre-developing the imitation anodic / imitation metal effect on the integrated middle frame and plastic surface of mobile phones. The existing plastic product L-angle wire drawing process is prone to paint peeling. Due to the convex angle formed between the rotation angle and the wire drawing speed of the plastic product L-angle, the wire drawing lines are disordered and uneven in depth. Therefore, the inventor proposed an imitation metal wire drawing jig structure for a plastic middle frame to solve the above-mentioned technical problems. Summary of the Utility Model

[0004] The utility model aims to provide a technical solution to overcome the above deficiencies.

[0005] An imitation metal wire drawing jig structure for a plastic middle frame includes a base, a support frame and a base. The support frame is located between the base and the base, and is respectively in contact with one end of the base and the base. An outer frame for placing an external mobile phone case is installed on the outer side of the base. The outer frame and the base are a detachable structure. The surface of the outer frame is provided with a block and a slot for assisting in the position limitation of the external mobile phone case. The surface of the outer frame is also provided with a limiting groove for preventing the mobile phone case from sliding. One end of the outer frame is provided with a connection component for connecting with the base;

[0006] This structure significantly improves the processing efficiency and product quality. By ingeniously combining the base, support frame, and base, a stable working platform is formed, ensuring stability and precision during the processing. The support frame is located between the base and the base, not only sharing the load-bearing pressure of the base but also enhancing the rigidity and vibration resistance of the overall structure. The outer frame design of this fixture structure is particularly prominent. Its detachable structure facilitates quick replacement and adjustment according to mobile phone cases of different models, greatly improving the versatility and flexibility of the equipment. The clamping blocks, clamping grooves, and limiting grooves set on the surface of the outer frame together constitute a multi-positioning and locking mechanism, effectively preventing the displacement and sliding of the mobile phone case during processing, ensuring accurate alignment and uniform consistency in the imitation metal wire drawing process. In addition, the ingenious design of the connection component makes the connection between the outer frame and the base both firm and convenient to disassemble, further enhancing the overall performance and operation convenience of the fixture structure.

[0007] Furthermore, the connection component includes a fitting plate and a clamping plate. One end of the fitting plate abuts against the surface of the outer frame. The clamping plate is located on the inner edge of the outer frame and is in a convex shape. Both the fitting plate and the clamping plate are made of hard rubber. Hard rubber has good elasticity and toughness, which means that the fitting plate can closely fit on the surface of the outer frame, and at the same time, the clamping plate can be firmly embedded in the corresponding position, thus ensuring the stability and reliability of the connection component. This stable connection not only improves the strength of the overall structure but also reduces the safety risks caused by loose or detached connections. In addition, hard rubber also has good wear resistance and aging resistance. Under the erosion of natural factors, the wear resistance of hard rubber can ensure that the connection component is not easily worn during long-term use, thus extending its service life. Hard rubber also has certain shock absorption and sound insulation effects. When the buffing wheel rotates at high speed, certain vibrations and noises may be generated. As the material of the connection component, hard rubber can effectively absorb and reduce these vibrations and noises, thus improving its operation stability and usage experience.

[0008] Furthermore, screw holes are connected to the surface of the outer frame, and fixing screws paired with the screw holes are provided on the surface of the base. When the screw holes are connected to the fixing screws, the probability of detachment between the base and the outer frame is reduced, and at the same time, it plays a role in positioning the outer frame, making the outer frame located at the designated installation position on the base.

[0009] Furthermore, the surface of the outer frame is provided with limit blocks for preventing the mobile phone case from sliding. The limit blocks are linearly arranged on the surface of the outer frame, and the distance between adjacent two limit blocks is equally spaced. The linearly arranged and equally spaced design of the limit blocks on the surface of the outer frame effectively prevents the mobile phone case from sliding during use, increases its stability, and facilitates the impact wire drawing of the product's wire-drawn paint surface when the abrasive disc rotates at high speed, reducing the risk of accidental dropping. In addition, the equally spaced limit blocks ensure that the mobile phone case can be evenly stressed when placed or tilted, avoiding deformation or damage of the case caused by uneven stress.

[0010] Furthermore, the surface of the base is provided with a top block, and a keyway is opened in the middle of the top block. The top block and the base are of an inlaid structure. The inlaid structure makes the connection between the top block and the base more stable, not easy to loosen or fall off, thereby improving the stability and reliability of the whole structure. This structure also ensures that under different working conditions, the top block can maintain its original position and posture, providing a solid foundation for subsequent work or assembly. In addition, the inlaid structure also has a certain degree of flexibility. By adjusting the position and angle of the top block on the base, it is possible to process or assemble workpieces of different shapes and sizes, improving the adaptability and flexibility of the equipment. At the same time, since the connection between the top block and the base is achieved through inlay, the top block can be conveniently replaced or repaired, reducing the maintenance cost and time of the equipment. The keyway is convenient for the base to be paired and installed with an external vertical five-axis machine, so that the abrasive disc of the vertical five-axis machine rotates at high speed to impact and draw the wire-drawn paint surface of the product, and then the wire-drawn surface is protected by spraying a protective paint.

[0011] Furthermore, a number of mounting holes for connecting external screws are opened on the surface of the base, and the mounting holes penetrate the surface of the base. This design enables external screws to directly penetrate the base through the mounting holes and firmly fix other components or structures, thereby enhancing the stability and reliability of the overall connection. Secondly, the penetrating design facilitates the use of tools for operation during the assembly and disassembly process, improving work efficiency and convenience. It also makes the installation and fixation of the base more flexible, capable of adapting to connection requirements of different specifications and sizes.

[0012] Furthermore, the outer frame is made of rubber; due to the elastic properties of rubber, the outer frame can absorb and disperse impact forces, providing excellent buffering effects, effectively protecting against damage caused by external collisions. Moreover, rubber has good sealing performance, which can prevent moisture, dust, and other impurities from entering the interior, keeping it clean and dry. The outer frame made of rubber also has an anti-slip function, increasing its stability and comfort. At the same time, it has stretching properties, facilitating the installation of the outer frame on the base. A groove for mating installation with the outer frame is provided inside the base to facilitate the positioning and installation of the outer frame. The wear resistance of rubber also ensures that the outer frame can maintain its appearance and performance for a long time, extending its service life.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: a connection component for connecting with the base is provided at one end of the outer frame; this structure significantly improves the processing efficiency and product quality. By ingeniously combining the base, the support frame, and the base, a stable working platform is formed, ensuring the stability and accuracy during the processing. The support frame is located between the base and the base, not only sharing the load-bearing pressure of the base but also enhancing the rigidity and vibration resistance of the overall structure. The design of the outer frame of this fixture structure is particularly prominent;

[0014] Its detachable structure facilitates quick replacement and adjustment according to mobile phone cases of different models, greatly improving the versatility and flexibility of the device. The blocks, slots, and limit slots provided on the surface of the outer frame together constitute a multi-positioning and locking mechanism, effectively preventing the displacement and sliding of the mobile phone case during the processing, ensuring the precise alignment and uniformity of the imitation metal wire drawing process;

[0015] In addition, the ingenious design of the connection component makes the connection between the outer frame and the base both firm and convenient to disassemble, further enhancing the overall performance and operation convenience of the fixture structure. It can be used for processing or assembling workpieces of different shapes and sizes, improving the adaptability and flexibility of the device. At the same time, chamfering is adopted to improve the traditional defects of the L-corner of plastic products in the wire drawing process, such as disordered wire drawing lines and uneven depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a fixture structure for imitation metal wire drawing of a plastic middle frame;

[0017] Figure 2 is Figure 1 a partial enlarged schematic view of A therein;

[0018] Figure 3 is another perspective view of a fixture structure for imitation metal wire drawing of a plastic middle frame;

[0019] Figure 4 is an axonometric view of a fixture structure for imitation metal wire drawing of a plastic middle frame;

[0020] Figure 5 It is a perspective view of the outer frame in the structure of a metal - like wire - drawing fixture for a plastic middle frame;

[0021] Figure 6 It is another perspective view of the outer frame in the structure of a metal - like wire - drawing fixture for a plastic middle frame;

[0022] Figure 7 It is an axonometric view of the outer frame in the structure of a metal - like wire - drawing fixture for a plastic middle frame;

[0023] Figure 8 It is a schematic diagram of the process flow of metal - like wire - drawing in this embodiment;

[0024] In the figure: base - 1, support frame - 2, base - 3, outer frame - 4, clamping block - 5, clamping groove - 6, limiting groove - 7, fitting plate - 8, clamping plate - 9, screw hole - 10, fixing screw - 11, limiting block - 12, top block - 13, mounting hole - 14, keyway - 15. Specific embodiments

[0025] The following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0026] In this embodiment, please refer to Figures 1-8 , a structure of a metal - like wire - drawing fixture for a plastic middle frame in its specific implementation, includes a base 1, a support frame 2 and a base 3. The support frame 2 is located between the base 1 and the base 3 and is respectively in contact with one end of the base 1 and the base 3. An outer frame 4 for placing an external mobile phone shell is installed on the outer side surface of the base 1. The outer frame 4 and the base 1 are of a detachable structure. Clamping blocks 5 and clamping grooves 6 for assisting in position - limiting of the external mobile phone shell are provided on the surface of the outer frame 4. A limiting groove 7 for preventing the mobile phone shell from sliding is also provided on the surface of the outer frame 4. A connecting component for connecting with the base 1 is provided at one end of the outer frame 4;

[0027] This structure significantly improves the processing efficiency and product quality. By ingeniously combining the base 1, the support frame 2, and the base 3, a stable working platform is formed, ensuring the stability and precision during the processing. The support frame 2 is located between the base 1 and the base 3, not only sharing the load-bearing pressure of the base 1 but also enhancing the rigidity and vibration resistance of the overall structure. The outer frame 4 of this fixture structure is particularly prominent. Its detachable structure facilitates quick replacement and adjustment according to different models of mobile phone casings, greatly improving the versatility and flexibility of the equipment. The clamping blocks 5, the clamping grooves 6, and the limiting grooves 7 provided on the surface of the outer frame 4 together constitute a multi-positioning and locking mechanism, effectively preventing the displacement and sliding of the mobile phone casing during the processing, ensuring the precise alignment and uniformity of the imitation metal wire drawing processing. In addition, the ingenious design of the connection component makes the connection between the outer frame 4 and the base 1 both firm and convenient to disassemble, further enhancing the overall performance and operation convenience of the fixture structure.

[0028] The connection component includes a fitting plate 8 and a clamping plate 9. One end of the fitting plate 8 abuts against the surface of the outer frame 4. The clamping plate 9 is located on the inner edge of the outer frame 4 and is in a convex shape. Both the fitting plate 8 and the clamping plate 9 are made of hard rubber. Hard rubber has good elasticity and toughness, which means that the fitting plate 8 can closely adhere to the surface of the outer frame 4, and at the same time, the clamping plate 9 can be firmly embedded in the corresponding position, thus ensuring the stability and reliability of the connection component. This stable connection not only improves the strength of the overall structure but also reduces the safety risks caused by loose or detached connections. In addition, hard rubber also has good wear resistance and aging resistance. Under the erosion of natural factors, the wear resistance of hard rubber can ensure that the connection component is not easily worn during long-term use, thus extending the service life. Hard rubber also has certain shock absorption and sound insulation effects. When the nylon abrasive wheel rotates at high speed, it may generate certain vibrations and noises. As the material of the connection component, hard rubber can effectively absorb and reduce these vibrations and noises, thus improving its operating stability and user experience.

[0029] The surface of the outer frame 4 is connected with screw holes 10, and the surface of the base 1 is provided with fixing screws 11 that are paired and connected with the screw holes 10. When the screw holes 10 are connected with the fixing screws 11, the probability of detachment between the base 1 and the outer frame 4 is reduced, and at the same time, it plays a role in positioning the outer frame 4, making the outer frame 4 located at the designated installation position on the base 1.

[0030] The surface of the outer frame 4 is provided with limit blocks 12 for preventing the sliding of the mobile phone case. The limit blocks 12 are linearly arranged on the surface of the outer frame 4, and the distance between adjacent two limit blocks 12 is equally spaced. The linearly arranged and equally spaced design of the limit blocks 12 provided on the surface of the outer frame 4 effectively prevents the mobile phone case from sliding during use, increases its stability, and facilitates the collision wire drawing of the product's wire-drawn paint surface when the abrasive wheel rotates at high speed, reducing the risk of accidental dropping. In addition, the equally spaced limit blocks 12 ensure that when the mobile phone case is placed or tilted, it can be evenly stressed, avoiding the deformation or damage of the case caused by uneven stress.

[0031] The surface of the base 1 is provided with a top block 13. A keyway 15 is opened in the middle of the top block 13. The top block 13 and the base 1 are in an inlaid structure. The inlaid structure makes the connection between the top block 13 and the base 1 more stable, not easily loosened or detached, thus improving the stability and reliability of the entire structure. This structure ensures that under different working conditions, the top block 13 can maintain its original position and posture, providing a solid foundation for subsequent work or assembly. In addition, the inlaid structure also has a certain degree of flexibility. By adjusting the position and angle of the top block 13 on the base 1, the processing or assembly of workpieces with different shapes and sizes can be realized, improving the adaptability and flexibility of the equipment. At the same time, since the connection between the top block 13 and the base 1 is achieved through inlay, the top block 13 can be conveniently replaced or repaired, reducing the maintenance cost and time of the equipment. The keyway 15 is convenient for the base 1 to be paired and installed with an external vertical five-axis machine, so that the abrasive wheel of the vertical five-axis machine rotates at high speed to perform collision wire drawing on the wire-drawn paint surface of the product, and then the wire-drawn surface is protected by spraying a thin protective paint.

[0032] The surface of the base 3 is provided with a plurality of mounting holes 14 for connecting external screws. The mounting holes 14 penetrate the surface of the base 3. This design enables external screws to directly penetrate the base 3 through the mounting holes 14 and firmly fix other components or structures, thereby enhancing the stability and reliability of the overall connection. Secondly, the penetrating design facilitates the operation of using tools during the assembly and disassembly processes, improving work efficiency and convenience. It also makes the installation and fixation of the base 3 more flexible, capable of adapting to connection requirements of different specifications and sizes.

[0033] The outer frame 4 is made of rubber; the elastic properties of rubber enable the outer frame 4 to absorb and disperse impact force, provide excellent cushioning effect, and effectively protect and reduce damage caused by external collisions. Rubber has good sealing performance, which can prevent moisture, dust and other impurities from entering the interior, keeping it clean and dry. The outer frame made of rubber also has an anti-slip function, which increases its stability and comfort. At the same time, it has tensile properties, which facilitates the installation of the outer frame 4 and the base 1. A groove body that is installed in pair with the outer frame 4 is opened inside the base 1 to facilitate the positioning and installation of the outer frame 4. The wear resistance of rubber also ensures that the outer frame can maintain its appearance and performance for a long time, extending its service life.

[0034] The key points of the design of the utility model are: before clamping, the plastic surface of the material needs to be drilled and leveled, ground and polished, cleaned, and baked before clamping, spraying treatment agent, UV primer, vacuum plating, and brushed paint, and then a connecting component connected to the base 1 is provided at one end of the outer frame 4; this structure significantly improves the processing efficiency and product quality, and a stable working platform is formed by cleverly combining the base 1, the support frame 2 and the base 3, ensuring the stability and accuracy of the processing process. The support frame 2 is located between the base 1 and the base 3, which not only shares the bearing pressure of the base 1, but also enhances the rigidity and vibration resistance of the overall structure. The design of the outer frame 4 of the fixture structure is particularly prominent;

[0035] Its detachable structure facilitates quick replacement and adjustment of mobile phone shells according to different models, greatly improving the versatility and flexibility of the device. The card block 5, card slot 6 and limit slot 7 arranged on the surface of the outer frame 4 together constitute a multiple positioning and locking mechanism, which effectively prevents the displacement and sliding of the mobile phone shell during processing, and ensures the precise alignment and uniformity of the imitation metal wire drawing processing;

[0036] In addition, the ingenious design of the connecting component makes the connection between the outer frame 4 and the base 1 both firm and easy to disassemble, further improving the overall performance and operational convenience of the fixture structure, and enabling processing or assembly of workpieces of different shapes and sizes, thereby improving the adaptability and flexibility of the equipment, while also improving the technical problem of using the L-angle of plastic products for wire drawing, resulting in disordered wire drawing lines and uneven depths.

[0037] The action process of the utility model is as follows: the outer frame 4 is installed on the outer side of the base 1, and then the mobile phone shell is placed. By adjusting the position and angle of the top block 13 on the base 1, the mobile phone shells of different shapes and sizes can be processed or assembled. Then, the card block 5, the card slot 6 and the limit slot 7 arranged on the surface of the outer frame 4 together constitute a multiple positioning and locking mechanism, which effectively prevents the displacement and sliding of the mobile phone shell during the processing, and ensures the precise alignment and uniformity of the imitation metal wire drawing processing;

[0038] During operation, the mobile phone housing that needs to be sprayed with brushed paint is fixed on this brushing fixture. By using a Scotch-Brite wheel on a five-axis machine in the prior art to rotate at high speed, the brushed paint surface of the mobile phone housing is collided and brushed, so that a structure with a brushed shape is formed on the outer side edge of the mobile phone housing. Finally, a thin protective paint is sprayed to protect this brushed surface;

[0039] Among them, if the hardness of the brushed paint is too high, the brushed stripes will be unclear. The spraying film thickness should be controlled at 30-40um / the energy should be controlled at 400-500mJ. Otherwise, it is easy to pull to the bottom layer of paint during brushing. 8-12 guns should be controlled during spraying to slowly apply the paint to avoid oil accumulation. The accuracy requirement for the brushing machine is five-axis numerical control. The brushing material is verified with nylon and the thickness of the Scotch-Brite wheel / the distance and speed between the product and the material are controlled to brush stripe depth;

[0040] After brushing, spraying is prone to filling the brushed lines and will result in no metallic effect. It is necessary to select a paint with a relatively low solid content and good performance at the same time. A thin coating is used to protect the brushed surface. The spraying film thickness is controlled at 2-5um to ensure that the product achieves an imitation metallic brushing effect. Finally, manual inspection is carried out by hand. After passing the test, this brushing process is completed.

[0041] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or replacements can still be made, which should all be regarded as the protection scope of the present invention.

Claims

1. A metal-drawing imitation jig structure for a plastic middle frame, comprising a base, a support frame and a base, characterized in that: The support frame is located between the base and the base seat, and abuts against one end of the base and the base seat respectively. An outer frame for placing an external mobile phone case is installed on the outer side surface of the base. The outer frame and the base are of a detachable structure. The surface of the outer frame is provided with a clamping block and a clamping groove for assisting in position limitation of the external mobile phone case. The surface of the outer frame is also provided with a limiting groove for preventing the mobile phone case from sliding. One end of the outer frame is provided with a connection component for connecting with the base.

2. The structure of a metal wire drawing imitation jig for a plastic middle frame according to claim 1, wherein: The connection component includes a fitting plate and a clamping plate. One end of the fitting plate abuts against the surface of the outer frame. The clamping plate is located at the inner edge of the outer frame and is in a convex shape.

3. The structure of a metal-drawing imitation jig for a plastic middle frame according to claim 2, characterized in that: The surface of the outer frame is connected with screw holes, and the surface of the base is provided with fixing screws paired with the screw holes for connection.

4. A metal-drawing-like jig structure for a plastic middle frame according to any one of claims 1-3, characterized in that: The surface of the outer frame is provided with limiting blocks for preventing the mobile phone case from sliding. The limiting blocks are linearly arranged on the surface of the outer frame, and the distance between adjacent two limiting blocks is set equally.

5. A metal-drawing imitation jig structure for a plastic middle frame according to any one of claims 1-3, characterized in that: The surface of the base is provided with a top block. A key groove is opened in the middle of the top block. The top block and the base are of an inlaid structure.

6. A fixture structure for imitating metal wire drawing of a plastic middle frame according to any one of claims 1-3, characterized in that: The surface of the base seat is provided with a plurality of mounting holes for connecting external screws, and the mounting holes penetrate through the surface of the base seat.

7. A metal-drawing-like jig structure for a plastic middle frame according to any one of claims 1-3, characterized in that: The outer frame is made of rubber.

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