A mobile phone mid-frame measurement auxiliary fixture

CN224616142UActive Publication Date: 2026-08-11SHANDONG HUAGANG INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202521746782.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-08-11
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

[0003]目前市场上常见的手机中框测量辅助治具普遍存在通用性差、操作繁琐和稳定性不足等突出问题,这类治具通常采用固定式设计,仅能适配单一型号产品,在切换不同型号时需要更换整套设备或进行复杂的机械调整,不仅增加了生产成本,还严重影响生产效率

Benefits of technology

[0013] (1) By setting up a locking mechanism between the rotary table and the base, and in conjunction with a linkage telescopic locking block and a threaded adjustment device, the positioning mold can be quickly disassembled and securely fixed. The precise fit between the slot and the insertion block ensures positioning accuracy. The linkage mechanism converts rotational motion into linear motion to drive the locking block to extend and retract, which simplifies the operation process and ensures locking reliability. This innovative structure significantly improves the clamping efficiency of the fixture, ensures that no displacement occurs during the measurement process, and solves the problems of complex operation and insufficient stability of traditional fixtures.

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Abstract

This utility model provides an auxiliary fixture for measuring the mid-frame of a mobile phone, including a base, a rotating table on the top of the base, a slot on the top of the rotating table, telescopic grooves on both sides of the inner wall of the slot, an adjustment groove inside the rotating table, two telescopic grooves connected to the adjustment groove through connecting grooves, a positioning mold on the top of the rotating table, an insert block at the bottom of the positioning mold, locking grooves on both sides of the outer wall of the insert block, locking blocks inside the two telescopic grooves, hollow grooves inside the locking blocks, linkage grooves on the inner wall of the hollow grooves, an adjustment plate inside the adjustment groove, a linkage plate fixedly connected to the outer wall of the adjustment plate, a protrusion on the outer wall of the adjustment plate, a rotating rod movably connected to the inner wall of the adjustment groove, one end of the rotating rod threadedly connected to the adjustment plate, and a locking knob fixedly connected to the other end of the rotating rod. This fixture can be widely used in the mobile phone manufacturing industry.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone manufacturing technology, and in particular to an auxiliary fixture for measuring the mid-frame of a mobile phone. Background Technology

[0002] The mid-frame of a mobile phone is a core component in the phone's structure. Located between the screen and the back cover, it plays a vital role in supporting internal components and protecting the overall structure. Its manufacturing precision not only affects the fit of various components but also directly impacts the phone's waterproof performance, heat dissipation, and overall structural strength. To ensure product quality, key parameters such as the mid-frame's dimensional tolerances, flatness, and hole accuracy must be strictly tested and controlled.

[0003] Currently, common mobile phone frame measurement auxiliary fixtures on the market generally suffer from prominent problems such as poor versatility, cumbersome operation, and insufficient stability. These fixtures are usually designed to be fixed and can only be adapted to a single model of product. When switching to different models, it is necessary to replace the entire set of equipment or make complex mechanical adjustments, which not only increases production costs but also seriously affects production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide an auxiliary fixture for measuring the mid-frame of a mobile phone.

[0005] Therefore, this utility model provides an auxiliary fixture for measuring the mid-frame of a mobile phone, including a base, a rotating stage on the top of the base, a slot on the top of the rotating stage, telescopic grooves on both sides of the inner wall of the slot, an adjustment groove inside the rotating stage, and two telescopic grooves connected to the adjustment groove via connecting grooves. A positioning mold is provided on the top of the rotating stage, and an insert block is provided at the bottom of the positioning mold. Locking grooves are provided on both sides of the outer wall of the insert block, and locking blocks are provided inside each of the two telescopic grooves. One end of each locking block is located inside the locking groove. The interior of the device has a hollowed-out groove, and the inner wall of the hollowed-out groove has a linkage groove, and there are two linkage grooves. An adjustment plate is set inside the adjustment groove, and a linkage plate is fixedly connected to the outer wall of the adjustment plate, and there are two linkage plates. The outer walls of the two adjustment plates are provided with protrusions, and there are two protrusions. The protrusions are located inside the linkage groove. A rotating rod is movably connected to the inner wall of the adjustment groove. The outer wall of one end of the rotating rod is threaded, and the threaded end of the rotating rod is threadedly connected to the adjustment plate. A locking knob is fixedly connected to one end of the rotating rod.

[0006] Preferably, the outer wall of the locking knob is provided with a cross groove, the position of the locking groove corresponds to the position of the telescopic groove, and the cross-section of the telescopic groove and the locking block is triangular.

[0007] Preferably, the bottom of the positioning mold is fixedly connected with a positioning post, and there are multiple positioning posts. The top of the rotary table is provided with a positioning hole, and there are multiple positioning holes. The positioning post is located inside the corresponding positioning hole.

[0008] Preferably, a connecting block is fixedly connected to the bottom of the rotary table, and a positioning ring is fixedly connected to the outer wall of the connecting block, with the positioning ring located inside the base.

[0009] Preferably, the base has a through groove inside, the outer wall of the rotating platform has a groove, the groove is connected to the through groove, one end of the rotating rod passes through the through groove, and the locking knob is located inside the groove.

[0010] Preferably, a turbine is fixedly connected to the bottom of the connecting block, a rotating shaft is movably connected to the inner wall of the base, a worm gear is fixedly connected to the outer wall of the rotating shaft, the outer wall of the turbine meshes with the outer wall of the worm gear, and one end of the rotating shaft extends to the outer wall of the base and is fixedly connected to an adjustment knob.

[0011] Preferably, the positioning mold includes a base plate, and a fixing post is provided on the top edge of the positioning mold, and there are multiple fixing posts.

[0012] This utility model provides an auxiliary fixture for measuring the mid-frame of a mobile phone, which has the following beneficial effects:

[0013] (1) By setting up a locking mechanism between the rotary table and the base, and in conjunction with a linkage telescopic locking block and a threaded adjustment device, the positioning mold can be quickly disassembled and securely fixed. The precise fit between the slot and the insertion block ensures positioning accuracy. The linkage mechanism converts rotational motion into linear motion to drive the locking block to extend and retract, which simplifies the operation process and ensures locking reliability. This innovative structure significantly improves the clamping efficiency of the fixture, ensures that no displacement occurs during the measurement process, and solves the problems of complex operation and insufficient stability of traditional fixtures.

[0014] By setting up a worm gear transmission system, the worm gear transmission mechanism smoothly converts the rotational motion of the manual knob into the precise rotation of the rotary table, and has a self-locking characteristic to ensure reliable positioning at any angle. Attached Figure Description

[0015] Figure 1 This is a first-view overall structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the interior of the rotating platform of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal components of the rotary table of this utility model;

[0018] Figure 4 This is a schematic diagram of the rotating platform of this utility model;

[0019] Figure 5 This is a schematic diagram of the meshing of the turbine and worm gear of this utility model;

[0020] Figure 6 This is a schematic diagram of the positioning mold and insert block of this utility model;

[0021] Figure 7 This is a schematic diagram of the internal structure of the rotary table of this utility model;

[0022] Figure 8 This is a schematic diagram of the internal structure of this utility model;

[0023] Figure 9 This is a schematic diagram of the internal structure of this utility model.

[0024] The markings in the diagram are: 1. Base; 2. Rotary table; 3. Slot; 4. Telescopic slot; 5. Adjustment slot; 6. Connecting slot; 7. Positioning mold; 8. Insert block; 9. Locking slot; 10. Locking block; 11. Hollowed-out slot; 12. Linkage slot; 13. Adjustment plate; 14. Linkage plate; 15. Protrusion; 16. Rotating rod; 17. Locking knob; 18. Positioning post; 19. Positioning hole; 20. Positioning ring; 21. Through slot; 22. Groove; 23. Turbine; 24. Rotating shaft; 25. Worm rod; 26. Adjustment knob; 27. Base plate; 28. Fixing post. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0026] Depend on Figures 1-9As shown, this utility model provides an auxiliary fixture for measuring the mid-frame of a mobile phone, including a base 1, a rotating stage 2 on the top of the base 1, a slot 3 on the top of the rotating stage 2, telescopic grooves 4 on both sides of the inner wall of the slot 3, an adjustment groove 5 inside the rotating stage 2, and two telescopic grooves 4 connected to the adjustment groove 5 via connecting grooves 6. A positioning mold 7 is provided on the top of the rotating stage 2, and an insert 8 is provided at the bottom of the positioning mold 7. Locking grooves 9 are provided on both sides of the outer wall of the insert 8, and the positions of the locking grooves 9 correspond to the positions of the telescopic grooves 4. Locking blocks 10 are provided inside each of the two telescopic grooves 4. The cross-sections of the telescopic grooves 4 and the locking blocks 10 are triangular, with one end of the locking block 10 located inside the locking groove 9. A hollow groove 11 is provided inside the locking block 10, and a linkage groove 12 is provided on the inner wall of the hollow groove 11. The number of linkage grooves 12 is [missing information]. There are two adjustment slots 12. The adjustment slot 5 is equipped with an adjustment plate 13. The outer wall of the adjustment plate 13 is fixedly connected to a linkage plate 14. There are two linkage plates 14. The outer wall of the two adjustment plates 13 is equipped with a protrusion 15. There are two protrusions 15. The protrusions 15 are located inside the linkage slot 12. The inner wall of the adjustment slot 5 is movably connected to a rotating rod 16. The outer wall of one end of the rotating rod 16 is threaded. The threaded end of the rotating rod 16 is threadedly connected to the adjustment plate 13. The other end of the rotating rod 16 is fixedly connected to a locking knob 17. The outer wall of the locking knob 17 is provided with a cross groove. The bottom of the positioning mold 7 is fixedly connected to a positioning post 18. There are multiple positioning posts 18. The top of the rotating table 2 is provided with a positioning hole 19. There are multiple positioning holes 19. The positioning post 18 is located inside the corresponding positioning hole 19.

[0027] When this mobile phone frame measurement auxiliary fixture is in operation, the insert block 8 at the bottom of the positioning mold 7 is first inserted into the slot 3 of the rotary table 2. At the same time, the positioning pin 18 is inserted into the positioning hole 19 in the vertical direction to achieve precise positioning. Rotating the locking knob 17 drives the rotating rod 16 to rotate, so that the adjusting plate 13 moves linearly in the horizontal direction. The protrusion 15 pushes the locking block 10 to extend into the slot 3 in the inclined direction and lock into the locking groove 9 of the insert block 8 to complete the locking. At this time, the locking block 10 abuts against the inclined surface of the locking groove 9, so that the positioning mold 7 and the rotary table 2 are tightly connected. After the measurement is completed, rotating the locking knob 17 in the opposite direction can release the lock, so that the locking block 10 retracts inward in the inclined direction. This not only ensures the locking force but also achieves quick disassembly and assembly, improving the measurement efficiency. It is suitable for the testing needs of the frames of different mobile phone models.

[0028] A connecting block is fixedly connected to the bottom of the rotary table 2, and a positioning ring 20 is fixedly connected to the outer wall of the connecting block. The positioning ring 20 is located inside the base 1 to ensure that the rotary table 2 maintains precise axial positioning when it rotates stably inside the base 1.

[0029] The base 1 has a through groove 21 inside, and the outer wall of the rotating platform 2 has a groove 22. The groove 22 is connected to the through groove 21. One end of the rotating rod 16 passes through the through groove 21, and the locking knob 17 is located inside the groove 22, providing an installation channel for the rotating rod 16 and allowing the locking knob 17 to be embedded in the outer wall of the rotating platform 2, ensuring that the adjustment mechanism operates normally while maintaining a compact overall structure.

[0030] A turbine 23 is fixedly connected to the bottom of the connecting block. A rotating shaft 24 is movably connected to the inner wall of the base 1. A worm gear 25 is fixedly connected to the outer wall of the rotating shaft 24. The outer wall of the turbine 23 meshes with the outer wall of the worm gear 25. One end of the rotating shaft 24 extends to the outer wall of the base 1 and is fixedly connected to an adjustment knob 26. The positioning mold 7 includes a base plate 27. A fixing post 28 is provided on the top edge of the positioning mold 7. There are multiple fixing posts 28. The edge of the mobile phone frame is located between the clamping plate 27 and the multiple fixing posts 28.

[0031] After the mobile phone frame is placed on the base plate 27 of the positioning mold 7 and fixed with the fixing post 28, the rotating adjustment knob 26 drives the rotating table 2 to rotate smoothly along the horizontal plane through the meshing transmission of the worm gear 25 and the turbine 23, so as to realize multi-angle measurement and precise angle adjustment.

[0032] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A mobile phone middle frame measurement auxiliary jig, comprising a base (1), characterized in that: A rotating platform (2) is provided on the top of the base (1). A slot (3) is provided on the top of the rotating platform (2). Telescopic grooves (4) are provided on both sides of the inner wall of the slot (3). An adjustment groove (5) is provided inside the rotating platform (2). The two telescopic grooves (4) are connected to the adjustment groove (5) through a connecting groove (6). A positioning mold (7) is provided on the top of the rotating platform (2). An insert block (8) is provided at the bottom of the positioning mold (7). Locking grooves (9) are provided on both sides of the outer wall of the insert block (8). Locking blocks (10) are provided inside the two telescopic grooves (4). One end of the locking block (10) is located inside the locking groove (9). A hollow groove (11) is provided inside the locking block (10). The inner wall of the adjustment groove (5) is provided with a linkage groove (12), and there are two linkage grooves (12). An adjustment plate (13) is provided inside the adjustment groove (5). A linkage plate (14) is fixedly connected to the outer wall of the adjustment plate (13), and there are two linkage plates (14). A protrusion (15) is provided on the outer wall of the two adjustment plates (13), and there are two protrusions (15). The protrusion (15) is located inside the linkage groove (12). A rotating rod (16) is movably connected to the inner wall of the adjustment groove (5). A thread is provided on the outer wall of one end of the rotating rod (16) located in the adjustment groove (5). The threaded end of the rotating rod (16) is threadedly connected to the adjustment plate (13). A locking knob (17) is fixedly connected to one end of the rotating rod (16).

2. The mobile phone middle frame measurement auxiliary jig according to claim 1, wherein: The outer wall of the locking knob (17) is provided with a cross groove. The position of the locking groove (9) corresponds to the position of the telescopic groove (4). The cross-section of the telescopic groove (4) and the locking block (10) is triangular. 3.The mobile phone middle frame measurement auxiliary jig according to claim 1, wherein: The bottom of the positioning mold (7) is fixedly connected with a positioning column (18), and there are multiple positioning columns (18). The top of the rotating table (2) is provided with a positioning hole (19), and there are multiple positioning holes (19). The positioning column (18) is located inside the corresponding positioning hole (19).

4. The mobile phone middle frame measurement auxiliary jig according to claim 1, wherein: The bottom of the rotating platform (2) is fixedly connected to a connecting block, and the outer wall of the connecting block is fixedly connected to a positioning ring (20), which is located inside the base (1).

5. The mobile phone middle frame measurement auxiliary jig according to claim 1, wherein: The base (1) has a through groove (21) inside, and the outer wall of the rotating platform (2) has a groove (22) connected to the through groove (21). One end of the rotating rod (16) passes through the through groove (21), and the locking knob (17) is located inside the groove (22).

6. The mobile phone middle frame measurement auxiliary jig according to claim 4, characterized in that: A turbine (23) is fixedly connected to the bottom of the connecting block. A rotating shaft (24) is movably connected to the inner wall of the base (1). A worm gear (25) is fixedly connected to the outer wall of the rotating shaft (24). The outer wall of the turbine (23) meshes with the outer wall of the worm gear (25). One end of the rotating shaft (24) extends to the outer wall of the base (1) and is fixedly connected to an adjustment knob (26).

7. The mobile phone middle frame measurement auxiliary jig according to claim 1, characterized in that: The positioning mold (7) includes a base plate (27), and a fixing post (28) is provided on the top edge of the positioning mold (7), and there are multiple fixing posts (28).