Simulation mobile phone roller experiment jig

Abstract

The utility model belongs to the technical field of jigs, and particularly relates to an experiment jig for simulating a mobile phone roller, which comprises an upper jig die, a lower jig die, a first protective pad and a second protective pad, the bottom of the upper jig die is slidably connected with the first protective pad, the lower jig die is arranged above the upper jig die, a lower die cavity is arranged at the top of the lower jig die, and the first protective pad is slidably connected with the lower die cavity. A second protective pad is arranged on the inner side of the lower die cavity; the positioning assembly is used for limiting the jig upper die and the jig lower die; and the connecting assembly is used for connecting the jig upper die and the jig lower die. According to the utility model, the jig upper die and the jig lower die can be limited and connected through the positioning assembly and the connecting assembly so as to simulate a whole mobile phone, and compared with the prior art, the simulation experiment verification of a backlight assembly can be conveniently carried out before a sample is sent to a client for verification for a backlight manufacturer, so that the condition that the backlight manufacturer is in a passive position is reduced.

Description

A simulated mobile phone roller test fixture Technical Field

[0001] This utility model belongs to the field of fixture technology, specifically relating to a simulated mobile phone roller experimental fixture. Background Technology

[0002] The development and introduction of mobile phone components involves several stages from trial production to mass production: EVT (Engineering Verification Test), DVT (Design Verification Test), PVT (Small Batch Production Verification Test), and MP (Mass Production). All of these stages require tumbling and drop tests. For mobile phone backlights, these stages are most prone to issues like white spots or patches. This is because foreign objects inside the backlight rub against the backlight guide plate during tumbling or drop tests, causing damage to the guide plate and resulting in white spots or patches.

[0003] Backlight manufacturers often have to wait for the customer to conduct full-device testing before they can know the results of their sample verifications. Even if the customer reports white spots or patches after the full-device testing, the backlight manufacturer can only analyze the issue and make every effort to improve it. After implementing the improvements, they still need to wait for the customer to re-verify and evaluate the effectiveness. This affects the verification of the entire device and the project schedule, putting the backlight manufacturer in a passive position. Summary of the Invention

[0004] The purpose of this invention is to provide a simulated mobile phone roller test fixture, which can limit and connect the upper and lower molds of the fixture through positioning and connecting components to simulate the entire mobile phone. Compared with the existing method, this makes it easier for backlight manufacturers to conduct simulated test verification of backlight components before sending samples to customers for verification, thereby reducing the passive position of backlight manufacturers.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A simulated mobile phone roller test fixture includes an upper mold, the bottom of which is slidably connected to a first protective pad, and further includes:

[0007] The lower mold of the fixture is disposed above the upper mold of the fixture. The top of the lower mold of the fixture is provided with a lower mold cavity, and the inner side of the lower mold cavity is provided with a second protective pad.

[0008] A positioning component is disposed between the upper mold and the lower mold of the fixture, and is used to limit the upper mold and the lower mold of the fixture.

[0009] A connecting component is disposed between the upper mold and the lower mold of the fixture, and is used to connect the upper mold and the lower mold of the fixture;

[0010] The upper mold and lower mold of the fixture are positioned and connected by a positioning component and a connecting component.

[0011] The lower mold cavity includes a lower mold groove formed on the top of the lower mold of the fixture, and the second protective pad is slidably connected to the lower mold groove in the vertical direction.

[0012] The lower mold cavity includes a housing that is slidably connected to the top of the lower mold of the fixture in a vertical direction, and the second protective pad is detachably connected to the bottom of the housing.

[0013] The lower mold cavity includes a frame that is slidably connected to the top of the lower mold of the fixture in a vertical direction, and the second protective pad is located inside the frame and is detachably connected to the lower mold of the fixture.

[0014] The positioning component includes several guide pins fixedly connected to the top of the lower mold of the fixture, and several guide grooves are provided at the bottom of the upper mold of the fixture. The guide pins and guide grooves slide in a vertical direction.

[0015] The positioning component includes several guide blocks that are slidably connected to the top of the lower mold of the fixture in a vertical direction, and several guide shells that are slidably connected to the bottom of the upper mold of the fixture in a vertical direction. The guide blocks and guide shells are slidably engaged in a vertical direction.

[0016] The connecting assembly includes a plurality of first fixing screws slidably connected to the lower mold of the fixture, and a plurality of first nuts slidably connected to the upper mold of the fixture, wherein the first fixing screws are threadedly connected to the first nuts.

[0017] The connecting assembly includes a plurality of second fixing screws slidably connected to the upper mold of the fixture, and a plurality of second nuts slidably connected to the lower mold of the fixture, wherein the second fixing screws and the second nuts are threadedly connected.

[0018] The technical effects achieved by this utility model are as follows:

[0019] The upper and lower molds of the fixture in this invention are limited and connected by positioning and connecting components. After the backlight component is placed between the upper and lower molds, the upper and lower molds move closer to each other. During this process, the positioning component helps the upper and lower molds to align. The connecting component fixes the upper and lower molds together, so that the fixture and the backlight component together form a structure similar to a complete mobile phone, thus simulating a complete mobile phone. Compared with the existing method, this makes it easier for backlight manufacturers to conduct simulation experiments on the backlight component before sending samples to customers for verification.

[0020] When the upper and lower molds of the fixture are combined, the first and second protective pads are located on the upper and lower sides of the backlight assembly, respectively. The first protective pad separates the upper mold and the backlight assembly, and the second protective pad separates the lower mold and the backlight assembly, thereby reducing the possibility of the upper and lower molds damaging the backlight assembly, so as to better simulate the entire mobile phone. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 is an exploded view of the upper mold and lower mold of the fixture in this utility model;

[0023] Figure 3 is an exploded view of the upper mold, lower mold, and backlight assembly of the fixture at one angle in this utility model.

[0024] Figure 4 is an exploded view of the upper mold, lower mold, and backlight assembly of the fixture from another angle in this utility model;

[0025] Figure 5 is an explosion diagram of the upper mold of the fixture and the first protective pad in this utility model;

[0026] Figure 6 is an exploded view of the second protective pad and the lower mold groove in this utility model;

[0027] Figure 7 is a structural schematic diagram of the lower mold of the fixture, the second protective pad and the shell in this utility model;

[0028] Figure 8 is an exploded view of the lower mold of the fixture, the second protective pad, and the shell in this utility model;

[0029] Figure 9 is a structural schematic diagram of the lower mold of the fixture, the second protective pad and the frame in this utility model;

[0030] Figure 10 is an exploded view of the lower mold of the fixture, the second protective pad, and the frame in this utility model;

[0031] Figure 11 is a structural schematic diagram of the lower mold and guide block of the fixture in this utility model;

[0032] Figure 12 is an exploded view of the lower mold and guide block of the fixture in this utility model;

[0033] Figure 13 is a structural schematic diagram of the upper mold and guide shell of the fixture in this utility model;

[0034] Figure 14 is an exploded view of the upper mold and guide shell of the fixture in this utility model;

[0035] Figure 15 is a cross-sectional schematic diagram of the first fixing screw and the first nut in this utility model;

[0036] Figure 16 is a cross-sectional schematic diagram of the second fixing screw and the second nut in this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 10. Upper mold of fixture; 11. First protective pad; 20. Lower mold of fixture; 21. Lower mold cavity; 22. Second protective pad; 23. Lower mold groove; 24. Housing; 25. Frame; 30. Positioning assembly; 31. Guide post; 32. Guide groove; 33. Guide block; 34. Guide shell; 40. Connecting assembly; 41. First fixing screw; 42. First nut; 43. Second fixing screw; 44. Second nut; 50. Backlight assembly. Detailed Implementation

[0039] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0040] Example 1

[0041] As shown in Figures 1, 2, 3, 4, 5, 6, and 15, this is the first embodiment of the present invention. This embodiment provides a simulated mobile phone roller test fixture, including an upper mold 10 with a first protective pad 11 slidably connected to its bottom. It also includes a lower mold 20, positioned above the upper mold 10, with a lower mold cavity 21 at its top and a second protective pad 22 on its inner side; a positioning component 30, positioned between the upper mold 10 and the lower mold 20, for limiting their movement; and a connecting component 40, positioned between the upper mold 10 and the lower mold 20, for connecting them.

[0042] It should be noted that a backlight assembly 50 is placed inside the lower mold cavity 21. The backlight assembly 50 is existing technology and is the core component for realizing the visualization of the mobile phone, so it will not be described in detail here. The lower side of the backlight assembly 50 is fitted with the upper side of the second protective pad 22, and the upper side of the backlight assembly 50 is fitted with the lower side of the first protective pad 11. The total weight of the fixture and the backlight assembly 50 is consistent with the overall weight of the mobile phone to be simulated. In this invention, both the upper mold 10 and the lower mold 20 are preferably made of PA as the base material, weighing approximately 170 grams. The thickness of the upper mold 10 and the lower mold 20 can be adjusted according to the actual situation to adapt to mobile phones of different weights to be simulated. The thickness of the upper mold 10 and the lower mold 20 can be adjusted using existing mature production and processing technologies. The implementation details are omitted here. To achieve the best possible simulation of the overall shape of a mobile phone, after the upper mold 10 and lower mold 20 of the fixture are fitted together, the overall shape of the fixture is the same as the overall shape of the mobile phone to be simulated. The upper mold 10 and lower mold 20 are either right-angled or rounded to adapt to the overall shape of the mobile phone to be simulated, reducing the possibility that the stress points of the fixture and the mobile phone to be simulated are different during the roller test. This helps to reduce the difference between the roller test results of the fixture and the mobile phone. The connecting component 40 is located at the edge of the upper mold 10 and lower mold 20 to prevent the connecting component 40 from contacting the backlight component 50 and affecting the experimental verification results.

[0043] It should also be noted that the bottom of the upper mold 10 of the fixture is provided with a first groove, and the first protective pad 11 slides in the first groove in the vertical direction. The first protective pad 11 and the second protective pad 22 are both made of soft material. In this utility model, foam pads are preferred. The length and width of the upper mold 10 and the lower mold 20 of the fixture are equal. When the upper mold 10 and the lower mold 20 of the fixture are connected together by the connecting component 40, the upper mold 10 and the lower mold 20 of the fixture are aligned. The first protective pad 11 and the second protective pad 22 are aligned with the backlight component 50. Notches are provided on both sides of the bottom of the upper mold 10, so that the operator can lift the upper mold 10 by inserting his fingernail into the notch, which facilitates the separation of the upper mold 10 and the lower mold 20.

[0044] In this embodiment, when it is necessary to simulate the entire machine for testing to verify in advance whether the backlight assembly 50 has white spots or white patches, the backlight assembly 50 is placed inside the lower mold cavity 21, so that the lower side of the backlight assembly 50 is in contact with the upper side of the second protective pad 22. The upper mold 10 of the fixture is moved vertically downward from above the lower mold 20 of the fixture and close to the lower mold 20 of the fixture, so that the bottom of the upper mold 10 of the fixture is in contact with the top of the lower mold 20 of the fixture. At this time, the upper side of the backlight assembly 50 is... The positioning component 30, which fits against the lower side of the first protective pad 11, limits the upper mold 10 and the lower mold 20 of the fixture, preventing them from moving relative to each other in the horizontal direction. This facilitates the alignment of the first protective pad 11 and the second protective pad 22. After the connecting component 40 connects the upper mold 10 and the lower mold 20, the fixture as a whole remains relatively fixed to the backlight component 50, allowing the backlight component 50 to be placed in the fixture. The fixture and the backlight component 50 together form a complete unit. Similar to the structure of a complete mobile phone, this design simulates the entire device, facilitating the subsequent insertion of the fixture containing the backlight component 50 into roller or drop tests to mimic the effects of a complete mobile phone test. Compared to existing methods, this approach allows backlight manufacturers to conduct simulated testing of the backlight component 50 before sending samples to customers for verification. It allows for early simulation of sample verification results, and if verification fails beforehand, it facilitates analysis and implementation of improvement measures before sending samples to customers. This reduces potential problems during customer verification, lowers the defect rate of the backlight component 50, and increases the pass rate of complete customer tests. It also reduces the need for backlight manufacturers to wait for complete customer tests after each sample verification, and minimizes the need for re-verification after improvements based on customer feedback. Furthermore, it reduces the impact of frequent customer verification waits on complete device verification and project progress, thus reducing the passive position of backlight manufacturers.

[0045] When the upper mold 10 and the lower mold 20 of the fixture are attached to each other and clamp the backlight assembly 50, the first protective pad 11 is located between the upper mold 10 and the backlight assembly 50, reducing the possibility of the upper mold 10 damaging the backlight assembly 50. The second protective pad 22 is located between the lower mold 20 and the backlight assembly 50, reducing the possibility of the lower mold 20 damaging the backlight assembly 50. When it is necessary to remove the first protective pad 11 from the upper mold 10, the first protective pad 11 is slid downward along the bottom of the upper mold 10, so that the first protective pad 11 is detached from the upper mold 10. When it is necessary to install the first protective pad 11 on the upper mold 10, the first protective pad 11 is moved upward from below the upper mold 10 and close to the upper mold 10, so that the first protective pad 11 is placed in the first groove of the upper mold 10, thereby facilitating the removal, installation and replacement of the first protective pad 11.

[0046] As shown in Figures 2, 3 and 6, the lower mold cavity 21 includes a lower mold groove 23 formed on the top of the lower mold 20 of the fixture, and the second protective pad 22 is slidably connected to the lower mold groove 23 in the vertical direction.

[0047] It should be noted that the shape of the second protective pad 22 is the same as the shape of the lower mold groove 23, and the thickness of the second protective pad 22 in the vertical direction is smaller than the depth of the lower mold groove 23.

[0048] In this embodiment, when it is necessary to remove the second protective pad 22 from the lower mold 20 of the fixture, the second protective pad 22 is moved upward along the top of the lower mold 20 of the fixture, so that the second protective pad 22 is detached from the lower mold 20 of the fixture. When it is necessary to install the second protective pad 22 on the lower mold 20 of the fixture, the second protective pad 22 is moved downward from above the lower mold 20 of the fixture and close to the lower mold 20 of the fixture, so that the second protective pad 22 is placed in the lower mold groove 23, thereby facilitating the disassembly, assembly and replacement of the second protective pad 22.

[0049] As shown in Figures 5 and 6, the positioning component 30 includes several guide pins 31 fixedly connected to the top of the lower mold 20 of the fixture, and several guide grooves 32 are provided at the bottom of the upper mold 10 of the fixture. The guide pins 31 and the guide grooves 32 slide in the vertical direction.

[0050] It should be noted that the cross-sectional shape of the guide post 31 and the guide groove 32 is preferably rectangular in this utility model.

[0051] In this embodiment, when the upper mold 10 and the lower mold 20 of the fixture approach each other, the guide post 31 is inserted into the guide groove 32 and slides vertically in the guide groove 32. The guide post 31 cooperates with the guide groove 32 to prevent the upper mold 10 and the lower mold 20 of the fixture from moving relative to each other in the horizontal direction, thereby limiting the upper mold 10 and the lower mold 20 of the fixture and facilitating the alignment of the upper mold 10 and the lower mold 20 of the fixture.

[0052] As shown in Figures 2 and 15, the connecting assembly 40 includes a plurality of first fixing screws 41 that are slidably connected to the lower mold 20 of the fixture, and a plurality of first nuts 42 that are slidably connected to the upper mold 10 of the fixture, and the first fixing screws 41 and the first nuts 42 are threadedly connected.

[0053] It should be noted that the first fixing screw 41 is distributed around the periphery of the lower mold 20 of the fixture, and the first nut 42 is distributed around the periphery of the upper mold 10 of the fixture. Neither the first fixing screw 41 nor the first nut 42 is in contact with the backlight assembly 50. A first countersunk hole is provided on the lower mold 20 near the first fixing screw 41, and a second countersunk hole is provided on the upper mold 10 near the first nut 42. The shape of the second countersunk hole is adapted to the outer shape of the first nut 42. In this utility model, both the second countersunk hole and the first nut 42 are regular hexagons to prevent the first nut 42 from rotating in the second countersunk hole. After the upper mold 10 and the lower mold 20 of the fixture are connected by the connecting assembly 40, the first nut 42 does not extend to the outside of the second countersunk hole, the threaded end of the first fixing screw 41 does not extend to the outside of the second countersunk hole, and the end of the first fixing screw 41 away from the thread does not extend to the outside of the first countersunk hole.

[0054] In this embodiment, when it is necessary to fix the upper mold 10 and the lower mold 20 of the fixture together, the first fixing screw 41 is rotated, causing the first fixing screw 41 to rotate along the first nut 42 and move upward along the first nut 42, thereby reducing the distance between the lower end of the first fixing screw 41 and the first nut 42. This allows the lower end of the first fixing screw 41 and the first nut 42 to clamp and fix the upper mold 10 and the lower mold 20 of the fixture. When it is necessary to separate the upper mold 10 and the lower mold 20 of the fixture, the first fixing screw 41 is rotated, causing the first fixing screw 41 to rotate along the first nut 42. At the same time, it moves downward along the first nut 42, so that the first fixing screw 41 is disengaged from the first nut 42, thereby releasing the clamping and fixing of the first fixing screw 41 and the first nut 42 on the upper mold 10 and the lower mold 20 of the fixture. This facilitates the disassembly and assembly of the upper mold 10 and the lower mold 20 of the fixture through the connecting component 40. When the upper mold 10 and the lower mold 20 of the fixture are disassembled, it is easy to place the backlight component 50 between the upper mold 10 and the lower mold 20 of the fixture. When the upper mold 10 and the lower mold 20 of the fixture are fixedly connected together, it is easy for the fixture of this utility model and the backlight component 50 to simulate the formation of a mobile phone as a whole.

[0055] The first nut 42 is disposed on the upper mold 10 of the fixture to prevent the first nut 42 from detaching from the upper mold 10 of the fixture under the action of gravity.

[0056] Example 2

[0057] Referring to Figures 7 and 8, this is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the lower mold cavity 21 includes a housing 24 that is slidably connected to the top of the lower mold 20 of the fixture in the vertical direction, and the second protective pad 22 is detachably connected to the bottom of the housing 24.

[0058] It should be noted that the top of the lower mold 20 of the fixture is provided with a second groove. The housing 24 slides in the second groove in the vertical direction. The opening of the housing 24 faces upward. The bottom of the outer side of the housing 24 fits in the bottom of the second groove. The second protective pad 22 slides in the vertical direction with the housing 24. A first adhesive (not shown in the figure) connects the second protective pad 22 and the bottom inner side of the housing 24. The first adhesive is existing technology and is used to stick and connect the surfaces of two objects. The second protective pad 22 and the housing 24 are detachably connected by the first adhesive. The thickness of the second protective pad 22 in the vertical direction is smaller than the depth of the inner side of the housing 24.

[0059] In this embodiment, since the backlight assembly 50 is directly placed in the lower mold groove 23 of the lower mold 20 of the fixture, the backlight assembly 50 is prone to collision with the inner wall of the lower mold groove 23, causing wear on the inner wall of the lower mold groove 23 and increasing the gap between the backlight assembly 50 and the inner wall of the lower mold groove 23. In subsequent use, when the backlight assembly 50 is placed inside the lower mold groove 23, it is easy for the backlight assembly 50 to shake, which requires the lower mold 20 of the fixture to be replaced. Replacing the entire lower mold 20 of the fixture is wasteful. However, the housing 24 is designed separately from the lower mold 20 of the fixture. The housing 24 replaces the inner wall of the lower mold groove 23 to collide with the backlight assembly 50. Even if the housing 24 is worn, the housing 24 can be replaced separately, avoiding the waste caused by replacing the entire lower mold 20 of the fixture. Since the second protective pad 22 is detachably connected to the housing 24, it is convenient to remove and replace the second protective pad when replacing the housing 24, improving the convenience of replacement.

[0060] Example 3

[0061] Referring to Figures 9 and 10, this is the third embodiment of the present invention. The difference between this embodiment and the first embodiment is that the lower mold cavity 21 includes a frame 25 that is slidably connected to the top of the lower mold 20 of the fixture in the vertical direction, and the second protective pad 22 is located inside the frame 25 and is detachably connected to the lower mold 20 of the fixture.

[0062] It should be noted that the top of the lower mold 20 of the fixture is provided with a third groove, and the frame 25 slides in the vertical direction with the third groove. The frame 25 is designed to be through from top to bottom, and the bottom of the frame 25 fits in close contact with the bottom of the third groove. The second protective pad 22 slides in the vertical direction with the frame 25. A second adhesive (not shown in the figure) connects the second protective pad 22 and the bottom of the third groove. The second adhesive is existing technology and is used to stick and connect the surfaces of two objects. The second protective pad 22 and the lower mold 20 of the fixture are detachably connected by the first adhesive. The thickness of the second protective pad 22 in the vertical direction is smaller than the thickness of the frame 25 in the vertical direction.

[0063] In this embodiment, the frame 25 and the lower mold 20 of the fixture are designed separately. The frame 25 replaces the inner wall of the lower mold groove 23 and collides with the backlight assembly 50. Even if the frame 25 is worn, it can be replaced separately, avoiding the waste caused by replacing the entire lower mold 20. Since the second protective pad 22 is detachably connected to the lower mold 20 of the fixture, the second protective pad 22 does not move with the frame 25 when it moves along the lower mold 20 of the fixture during the replacement process. The frame 25 and the second protective pad 22 move relative to each other in the vertical direction, which makes it easy to replace the frame 25 without replacing the second protective pad 22, thus improving the convenience of replacement.

[0064] Example 4

[0065] Referring to Figures 11 to 14, this is the fourth embodiment of the present invention. The difference between this embodiment and the first embodiment is that the positioning component 30 includes a plurality of guide blocks 33 that are slidably connected to the top of the lower mold 20 of the fixture in the vertical direction, and a plurality of guide shells 34 that are slidably connected to the bottom of the upper mold 10 of the fixture in the vertical direction. The guide blocks 33 and the guide shells 34 are slidably engaged in the vertical direction.

[0066] It should be noted that the cross-sectional shape of the guide block 33 and the guide shell 34 is preferably rectangular in this utility model. A fourth groove is provided on the top of the lower mold 20 of the fixture near the guide block 33. The guide block 33 and the fourth groove slide in a vertical direction. A fifth groove is provided on the bottom of the upper mold 10 of the fixture near the guide shell 34. The guide shell 34 and the fifth groove slide in a vertical direction.

[0067] In this embodiment, wear of the guide post 31 and guide groove 32 can easily increase the gap between them, affecting the positioning component 30's ability to limit the upper mold 10 and lower mold 20 of the fixture. This would require replacing the lower mold 20, which would be wasteful. Therefore, the guide block 33 is designed separately from the lower mold 20, with the guide block 33 replacing the guide post 31. Similarly, the guide shell 34 is designed separately from the upper mold 10, with the guide shell 34 replacing the guide groove 32. Even if the guide block 33 and guide shell 34 are worn, they can be replaced individually, avoiding the waste caused by replacing the entire lower mold 20.

[0068] Example 5

[0069] Referring to Figure 16, this is the fifth embodiment of the present invention. The difference between this embodiment and the first embodiment is that the connecting component 40 includes a plurality of second fixing screws 43 slidably connected to the upper mold 10 of the fixture, and a plurality of second nuts 44 slidably connected to the lower mold 20 of the fixture. The second fixing screws 43 and the second nuts 44 are threadedly connected.

[0070] It should be noted that the second fixing screw 43 is distributed around the periphery of the upper mold 10 of the fixture, and the second nut 44 is distributed around the periphery of the lower mold 20 of the fixture. The first fixing screw 41 and the first nut 42 do not contact the backlight assembly 50. A third countersunk hole is provided on the upper mold 10 near the second fixing screw 43, and a fourth countersunk hole is provided on the lower mold 20 near the second nut 44. The shape of the fourth countersunk hole is adapted to the outer shape of the second nut 44. In this utility model, both the fourth countersunk hole and the second nut 44 are regular hexagons to prevent the second nut 44 from rotating in the fourth countersunk hole. After the upper mold 10 and the lower mold 20 of the fixture are connected by the connecting assembly 40, the second nut 44 does not extend to the outside of the fourth countersunk hole, the threaded end of the second fixing screw 43 does not extend to the outside of the fourth countersunk hole, and the end of the second fixing screw 43 away from the thread does not extend to the outside of the third countersunk hole.

[0071] In this embodiment, when it is necessary to fix the upper mold 10 and the lower mold 20 of the fixture together, the second fixing screw 43 is rotated, so that the second fixing screw 43 rotates along the second nut 44 and moves downward along the second nut 44 at the same time, so as to reduce the distance between the upper end of the second fixing screw 43 and the second nut 44, thereby clamping and fixing the upper mold 10 and the lower mold 20 of the fixture with the upper end of the second fixing screw 43 and the second nut 44. When it is necessary to disassemble the upper mold 10 and the lower mold 20 of the fixture, the second fixing screw 43 is rotated, so that the second fixing screw 43 rotates along the second nut 44 and moves upward along the second nut 44 at the same time, so as to disengage the second fixing screw 43 from the second nut 44, thereby releasing the clamping and fixing of the upper mold 10 and the lower mold 20 of the fixture by the second fixing screw 43 and the second nut 44, thereby facilitating the disassembly and assembly of the upper mold 10 and the lower mold 20 of the fixture through the connecting assembly 40.

[0072] The second fixing screw 43 is set on the upper mold 10 of the fixture, so that the operator can use tools to rotate the second fixing screw 43 from above.

[0073] The working principle of this utility model is as follows: the backlight assembly 50 is placed in the lower mold 20 of the fixture, and the upper mold 10 and the lower mold 20 of the fixture are brought close together and closed. During this process, the positioning component 30 limits the upper mold 10 and the lower mold 20 of the fixture in the horizontal direction, so that the upper mold 10 and the lower mold 20 of the fixture are aligned and easy to position. After the upper mold 10 and the lower mold 20 of the fixture are closed together, the connecting component 40 fixes the upper mold 10 and the lower mold 20 of the fixture together, so that the fixture and the backlight assembly 50 of this utility model together form a structure similar to a mobile phone, to simulate a mobile phone. Compared with the existing method, for backlight manufacturers, it is convenient to conduct simulation experiments and verification of the backlight assembly 50 before sending samples to customers for verification, reducing the problems that may occur during customer verification, reducing the defect rate of the backlight assembly 50, and increasing the pass rate of customer whole machine tests, thereby reducing the passive position of backlight manufacturers.

[0074] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A simulated mobile phone roller test fixture, characterized in that, The fixture includes an upper mold (10) with a first protective pad (11) slidably connected to its bottom, and also includes a lower mold (20) above the upper mold (10); a positioning component (30) between the upper mold (10) and the lower mold (20) for limiting the upper mold (10) and the lower mold (20); and a connecting component (40) between the upper mold (10) and the lower mold (20) for connecting the upper mold (10) and the lower mold (20); wherein the upper mold (10) and the lower mold (20) are positioned and connected by the positioning component (30) and the connecting component (40).

2. The simulated mobile phone drum test fixture according to claim 1, characterized in that: The lower mold (20) of the fixture is provided with a lower mold cavity (21) at the top, and a second protective pad (22) is provided on the inner side of the lower mold cavity (21).

3. The simulated mobile phone drum test fixture according to claim 2, characterized in that: The lower mold cavity (21) includes a lower mold groove (23) opened on the top of the lower mold (20) of the fixture, and the second protective pad (22) is slidably connected to the lower mold groove (23) in the vertical direction.

4. The simulated mobile phone drum test fixture according to claim 2, characterized in that: The lower mold cavity (21) includes a housing (24) that is slidably connected to the top of the lower mold (20) of the fixture in a vertical direction, and the second protective pad (22) is detachably connected to the bottom of the housing (24).

5. The simulated mobile phone drum test fixture according to claim 2, characterized in that: The lower mold cavity (21) includes a frame (25) that is slidably connected to the top of the lower mold (20) of the fixture in a vertical direction, and the second protective pad (22) is located inside the frame (25) and is detachably connected to the lower mold (20).

6. The simulated mobile phone drum test fixture according to claim 1, characterized in that: The positioning component (30) includes several guide posts (31) fixedly connected to the top of the lower mold (20) of the fixture, and several guide grooves (32) are provided at the bottom of the upper mold (10) of the fixture. The guide posts (31) and the guide grooves (32) slide in the vertical direction.

7. The simulated mobile phone drum test fixture according to claim 1, characterized in that: The positioning component (30) includes several guide blocks (33) that are slidably connected to the top of the lower mold (20) of the fixture in the vertical direction, and several guide shells (34) that are slidably connected to the bottom of the upper mold (10) of the fixture in the vertical direction. The guide blocks (33) and the guide shells (34) are slidably engaged in the vertical direction.

8. The simulated mobile phone drum test fixture according to claim 1, characterized in that: The connecting assembly (40) includes a plurality of first fixing screws (41) slidably connected to the lower mold (20) of the fixture, and a plurality of first nuts (42) slidably connected to the upper mold (10) of the fixture, wherein the first fixing screws (41) and the first nuts (42) are threadedly connected.

9. The simulated mobile phone drum test fixture according to claim 1, characterized in that: The connecting assembly (40) includes a plurality of second fixing screws (43) slidably connected to the upper mold (10) of the fixture, and a plurality of second nuts (44) slidably connected to the lower mold (20) of the fixture, wherein the second fixing screws (43) and the second nuts (44) are threadedly connected.

10. The simulated mobile phone drum test fixture according to claim 9, characterized in that: The upper mold (10) of the fixture has a third countersunk hole near the second fixing screw (43), and the lower mold (20) of the fixture has a fourth countersunk hole near the second nut (44).

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