Positioning device for high-precision mobile phone shell processing

Abstract

The utility model provides a positioning device for high accuracy cell phone shell processing relates to cell phone shell processing technical field, including the rest platform, and the rest platform top is equipped with the horizontal shift sliding slot, and the horizontal shift sliding slot side wall bearing is connected with the screw rod, and a plurality of horizontal adjustment seat are connected with the screw rod surface screw threads, and the both ends of horizontal adjustment seat top are equipped with the vertical adjustment seat, the utility model discloses adopt the internal positioning structure, and the adjacent horizontal adjustment seat is driven by the screw rod and moves towards each other, until the both sides of horizontal adjustment seat and cell phone shell two side walls are pasted, and the side bevel gear is driven to rotate by the gear rotation motor drive side bevel gear, and the side bevel gear drives positive bevel gear rotation, and positive bevel gear drives axle sun gear rotation, and the axle sun gear drives the rack opposite movement of both sides, until the vertical adjustment seat and cell phone shell inner wall are pasted, complete four -way positioning to cell phone shell, make cell phone shell inner wall all be in the state of support, improve the overall structure rigidity of cell phone shell, make the local elastic deformation of shell body be negligible, improve the processing accuracy of cell phone shell.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone case processing technology, and in particular to a positioning device for high-precision mobile phone case processing. Background Technology

[0002] Mobile phone cases utilize positioning and clamping mechanisms in various processing steps. For example, when laser-cutting mobile phone cases to form specific shapes or openings, such as headphone jacks or charging ports, the performance of the clamping and positioning mechanism directly affects the processing accuracy and yield of the final product.

[0003] In existing technologies, the industry commonly uses contact-type mechanical peripheral clamps, which rigidly clamp the outer periphery of the phone case using double-sided or four-way jaws. As a typical thin-walled hollow component, the phone case lacks an effective internal support structure, resulting in a significant lack of overall structural rigidity. When the external clamp applies radial clamping force, the hollow area inside the case cannot form an effective reaction force, and the clamping stress is unevenly distributed. At the moment of contact between the cutting tool and the workpiece, the periodic impact of the cutting force will cause local elastic deformation of the case, resulting in micro-displacement of the machining reference surface. Furthermore, continuous external force will cause plastic deformation of the case, especially in the processing of phone cases made of metal materials (such as aluminum alloys). This deformation can reach 0.05-0.15 mm, far exceeding the industry's allowable tolerance range. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision positioning device for mobile phone case processing.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a positioning device for high-precision mobile phone case processing, including a placement platform. A horizontal sliding groove is provided on the top of the placement platform. A lead screw is connected to the side wall bearing of the horizontal sliding groove. The lead screw is driven by an external motor, and multiple horizontal adjustment seats are threadedly connected to the surface of the lead screw. The internal thread grooves of adjacent horizontal adjustment seats are in opposite directions. Vertical adjustment seats are provided at both ends of the top of each horizontal adjustment seat, and the vertical adjustment seats are centrally symmetrically distributed. A rack is fixed to the bottom of each vertical adjustment seat. A shaft gear is rotatably connected to the inner cavity of each horizontal adjustment seat, and the shaft gear meshes with the rack. The shaft gear is driven by a drive assembly.

[0006] Preferably, the driving component includes a bevel gear, the top of which is fixedly connected to the bottom of the shaft gear. A side bevel gear meshes with the surface of the bevel gear. The side bevel gear is driven by a gear rotary motor, and the side bearing of the side bevel gear is connected to a fixed seat. Both the fixed seat and the gear rotary motor are fixedly connected to the inner cavity of the horizontal adjustment seat. The gear rotary motor drives the side bevel gear to rotate, which in turn drives the bevel gear to rotate. The bevel gear drives the shaft gear to rotate, which in turn drives the racks on both sides to move relative to each other, thereby driving the vertical adjustment seat to move towards each other until the vertical adjustment seat is in contact with the inner wall of the phone case, thus completing the positioning of the upper and lower inner walls of the phone case and realizing automated positioning.

[0007] Preferably, the top of the horizontal adjustment seat is provided with a sliding groove, and the bottom of the vertical adjustment seat is slidably connected to the sliding groove, which improves the stability of the vertical adjustment seat.

[0008] Preferably, the slide is a T-shaped groove, and the bottom of the vertical adjustment seat is a T-shaped protrusion. The cooperation between the T-shaped groove and the T-shaped protrusion can provide good guidance. When the vertical adjustment seat moves along the slide, the T-shaped protrusion slides in the T-shaped groove, which can ensure that the vertical adjustment seat moves strictly according to the predetermined trajectory, avoid the vertical adjustment seat from deviating or shaking during the movement, and thus achieve precise positioning.

[0009] Preferably, the circumference of the vertical adjustment seat is rounded. In modern mobile phone design, in order to improve the aesthetics and comfort during use, the corners of the phone case are usually designed with arc surfaces. Therefore, in order to reduce the pressure of the vertical adjustment seat on the corners of the inner wall of the phone case, this utility model sets the circumference of the vertical adjustment seat to rounded corners. Through the transition of the rounded corners, the contact area between the vertical adjustment seat and the inner wall of the phone case is increased, and the pressure distribution is more uniform, thereby avoiding deformation or damage to the case due to excessive local pressure. At the same time, the rounded corner design can also make the vertical adjustment seat fit more tightly with the inner wall of the phone case, ensuring the connection stability between the two.

[0010] Preferably, rubber pads are bonded to the rounded corners and the periphery of the vertical adjustment seat. The rubber pads not only increase the friction between the vertical adjustment seat and the contact surface of the phone case, preventing the phone case from shaking or shifting during processing, but also play a buffering and protective role. During the processing of the phone case, the inner wall of the phone case rubs against the contact surface of the vertical adjustment seat continuously, and the rubber pads reduce the wear of the inner wall of the phone case.

[0011] Preferably, the surface of the vertical adjustment seat is provided with anti-slip texture. The anti-slip texture increases the friction between the top of the vertical adjustment seat and the inner wall of the phone case, further preventing the phone case from shaking or shifting during processing and improving the positioning stability of the phone case.

[0012] Beneficial effects

[0013] In existing technologies, the industry commonly uses contact-type mechanical peripheral clamps, which rigidly clamp the outer periphery of the phone case using double-sided or four-way jaws. As a typical thin-walled hollow component, the phone case lacks an effective internal support structure, resulting in significantly insufficient overall structural rigidity. When the external clamp applies radial clamping force, the hollow area inside the case cannot generate an effective reaction force, leading to an uneven distribution of clamping stress. At the moment of contact between the cutting tool and the workpiece, the periodic impact of the cutting force induces local elastic deformation of the case, causing micro-displacement of the machining reference surface. Furthermore, continuous external force can cause plastic deformation of the case, especially in the machining of metal phone cases, where this deformation can reach 0.05-0.15mm, far exceeding the industry's allowable tolerance range. To address this issue, this invention employs an internal positioning structure. The phone case is placed on the surface of adjacent horizontal adjustment seats. An external motor drives a lead screw to rotate, causing the adjacent horizontal adjustment seats to move towards each other until both sides of the horizontal adjustment seats are in contact with the side walls of the phone case. Then, a gear-driven rotary motor rotates a side bevel gear, which in turn drives a spur bevel gear. The spur bevel gear drives a central gear, which in turn drives the racks on both sides to move relative to each other, thereby causing the vertical adjustment seats to move towards each other until they are in contact with the inner wall of the phone case. This completes the four-way positioning of the phone case, ensuring that the inner wall of the phone case is supported. This improves the overall structural rigidity of the phone case, making the local elastic deformation of the case negligible during cutting and processing, thus improving the processing accuracy of the phone case. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the horizontal adjustment seat of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the gear mechanism of this utility model;

[0017] Figure 4 This is a cross-sectional view of the present invention;

[0018] Figure 5 This is a cross-sectional view of the vertical adjustment seat in this utility model;

[0019] Figure 6 This is a three-dimensional structural diagram of the vertical adjustment seat in this utility model.

[0020] Legend:

[0021] 1. Placement platform; 101. Horizontal sliding groove; 2. Mobile phone case; 3. Horizontal adjustment seat; 4. Vertical adjustment seat; 401. Rounded corner; 402. Rack; 5. Lead screw; 6. Shaft gear; 7. Positive bevel gear; 8. Side bevel gear; 9. Gear rotary motor. Detailed Implementation

[0022] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:

[0025] Reference Figures 1-6 A positioning device for high-precision mobile phone case processing includes a placement table 1. A transverse sliding groove 101 is provided on the top of the placement table 1. A lead screw 5 is connected to the side wall bearing of the transverse sliding groove 101. The lead screw 5 is driven by an external motor. Multiple transverse adjustment seats 3 are threadedly connected to the surface of the lead screw 5. The internal thread grooves of adjacent transverse adjustment seats 3 are opposite in direction. Vertical adjustment seats 4 are provided at both ends of the top of the transverse adjustment seats 3. The vertical adjustment seats 4 are centrally symmetrically distributed. A rack 402 is fixed to the bottom of each vertical adjustment seat 4. A shaft gear 6 is rotatably connected to the inner cavity of the transverse adjustment seat 3. The shaft gear 6 and the rack 402 mesh with each other. The shaft gear 6 is driven by a drive assembly. The drive assembly includes a bevel gear 7, the top of which is fixedly connected to the bottom of the shaft gear 6. A side bevel gear 8 meshes with the surface of the bevel gear 7. The side bevel gear 8 is driven by a gear rotary motor 9, and the side bearing of the side bevel gear 8 is connected to a fixed seat. Both the fixed seat and the gear rotary motor 9 are fixedly connected to the inner cavity of the horizontal adjustment seat 3. The gear rotary motor 9 drives the side bevel gear 8 to rotate, which in turn drives the bevel gear 7 to rotate. The bevel gear 7 drives the shaft gear 6 to rotate, which in turn drives the racks 402 on both sides to move relative to each other, thereby driving the vertical adjustment seat 4 to move towards each other until the vertical adjustment seat 4 is in contact with the inner wall of the phone case, thus completing the positioning of the upper and lower inner walls of the phone case and realizing automated positioning.

[0026] The top of the horizontal adjusting seat 3 is provided with a sliding groove, and the bottom of the vertical adjusting seat 4 is slidably connected to the sliding groove, which improves the stability of the vertical adjusting seat 4. The sliding groove is a T-shaped groove, and the bottom of the vertical adjusting seat 4 is provided with a T-shaped protrusion. The cooperation between the T-shaped groove and the T-shaped protrusion can provide a good guiding effect. When the vertical adjusting seat 4 moves along the sliding groove, the T-shaped protrusion slides in the T-shaped groove, which can ensure that the vertical adjusting seat moves strictly according to the predetermined trajectory, avoiding the vertical adjusting seat 4 from deviating or shaking during the movement, thereby achieving precise positioning.

[0027] The vertical adjustment base 4 has rounded corners on all four sides. In modern mobile phone design, to improve aesthetics and user comfort, the corners of the phone case are usually rounded. Therefore, to reduce the pressure of the vertical adjustment base 4 on the corners of the inner wall of the phone case, this invention makes the vertical adjustment base 4 rounded. Through the rounded corner transition, the contact area between the vertical adjustment base 4 and the inner wall of the phone case is increased, and the pressure distribution is more even, thus avoiding deformation or damage to the case due to excessive local pressure. At the same time, the rounded corner design also allows the vertical adjustment base 4 to fit more tightly with the inner wall of the phone case, ensuring the stability of the connection between the two. Rubber pads are adhered to the rounded corners and the perimeter of the vertical adjustment base 4. The rubber pads not only increase the friction between the vertical adjustment base 4 and the contact surface of the phone case, preventing shaking or displacement during phone case processing, but also play a buffering and protective role. During phone case processing, the inner wall of the phone case rubs against the contact surface of the vertical adjustment base 4 continuously, and the rubber pads reduce the wear of the inner wall of the phone case. The surface of the vertical adjustment seat 4 is arrayed with anti-slip textures. These textures increase the friction between the top of the vertical adjustment seat 4 and the inner wall of the phone case, further preventing the phone case from shaking or shifting during processing and improving the positioning stability of the phone case.

[0028] The working principle of this utility model is as follows: The phone case 2 is placed on the surface of the adjacent horizontal adjustment seat 3. The external motor drives the lead screw 5 to rotate, and the lead screw 5 drives the adjacent horizontal adjustment seats 3 to move towards each other until the two sides of the horizontal adjustment seats 3 are in contact with the two side walls of the phone case. Then, the gear rotation motor 9 drives the side bevel gear 8 to rotate, the side bevel gear 8 drives the positive bevel gear 7 to rotate, the positive bevel gear 7 drives the shaft gear 6 to rotate, and the shaft gear 6 drives the racks 402 on both sides to move relative to each other, thereby driving the vertical adjustment seats 4 to move towards each other until the vertical adjustment seats 4 are in contact with the inner wall of the phone case 2, thus completing the four-way positioning of the phone case 2 and ensuring that the inner wall of the phone case 2 is in a supported state.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A positioning device for high-precision mobile phone case processing, comprising a placement stage (1), characterized in that: The top of the placement platform (1) is provided with a transverse sliding groove (101). A lead screw (5) is connected to the side wall bearing of the transverse sliding groove (101). The lead screw (5) is driven by an external motor. The surface of the lead screw (5) is threaded with multiple transverse adjustment seats (3). The internal thread grooves of adjacent transverse adjustment seats (3) are opposite in direction. Both ends of the top of the transverse adjustment seat (3) are provided with vertical adjustment seats (4). The vertical adjustment seats (4) are centrally symmetrically distributed. The bottom of each vertical adjustment seat (4) is fixed with a rack (402). The inner cavity of the transverse adjustment seat (3) is rotatably connected with a shaft gear (6). The shaft gear (6) and the rack (402) mesh with each other. The shaft gear (6) is driven by a drive assembly.

2. The positioning device for high-precision mobile phone case processing according to claim 1, characterized in that: The drive assembly includes a bevel gear (7), the top of which is fixedly connected to the bottom of the shaft gear (6), and a side bevel gear (8) meshing on the surface of the bevel gear (7). The side bevel gear (8) is driven by a gear rotary motor (9), and the side bearing of the side bevel gear (8) is connected to a fixed seat. Both the fixed seat and the gear rotary motor (9) are fixedly connected to the inner cavity of the transverse adjustment seat (3).

3. The positioning device for high-precision mobile phone case processing according to claim 1, characterized in that: The top of the horizontal adjustment seat (3) is provided with a sliding groove, and the bottom of the vertical adjustment seat (4) is slidably connected to the sliding groove.

4. The positioning device for high-precision mobile phone case processing according to claim 3, characterized in that: The slide is a T-shaped groove, and the bottom of the vertical adjustment seat (4) is a T-shaped protrusion.

5. The positioning device for high-precision mobile phone case processing according to claim 1, characterized in that: The vertical adjustment seat (4) has rounded corners (401) on all its circumferences.

6. The positioning device for high-precision mobile phone case processing according to claim 5, characterized in that: Rubber pads are adhered to the rounded corners (401) and the periphery of the vertical adjustment seat (4).

7. The positioning device for high-precision mobile phone case processing according to claim 1, characterized in that: The vertical adjustment seat (4) has an array of anti-slip textures on its surface.

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