Mobile phone mainboard test fixture

Abstract

The utility model discloses a mobile phone mainboard test fixture in the technical field of mobile phone regulation and control, which comprises a case, a clamping mechanism and a limiting mechanism are arranged above the case, a first shaft bracket is fixedly mounted on the upper surface of the case, a first rotating rod is arranged in the middle of the first shaft bracket, a first threaded rod is fixedly mounted at the rear end of the first rotating rod, and a second threaded rod is fixedly mounted at the rear end of the first threaded rod. The mobile phone mainboard testing jig is composed of the machine case, a clamping mechanism and a limiting mechanism, the clamping mechanism is of a double-end synchronous displacement structure, the clamping mechanism is of a double-end synchronous displacement structure, the limiting mechanism is of a double-end synchronous displacement structure, and the clamping mechanism is of a double-end synchronous displacement structure. The double-end clamping mechanism can drive the double-end clamping blocks to continuously approach and stably clamp a mobile phone, a mainboard or other parts, the clamping range of the clamping mechanism is large, the clamping mechanism can adapt to mobile phone bodies of various specifications, the limiting mechanism adopts three sets of hydraulic rods for coordinated work, in the process of clamping and testing the mobile phone mainboard, the three sets of hydraulic rods can all move, and the clamping range is wide. And the adjustability and the flexibility of the jig are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone regulation, in particular to a test fixture for a mobile phone main board. Background Technique

[0002] A mobile phone fixture is an auxiliary tool or device used in the processes of mobile phone production, assembly, testing and maintenance. The main functions of the fixture are to ensure the correct installation, positioning, fixation and performance testing of mobile phone components or the whole machine, and to improve production efficiency and product quality; a test fixture for a mobile phone main board is a fixture or device specially designed for the functional testing of a mobile phone main board. Its main role is to provide a stable and reliable test platform during the detection of the main board performance, so as to ensure that the main board can be accurately and efficiently evaluated during the test. A test fixture for a mobile phone main board is an auxiliary device used to fix and connect a mobile phone main board for electrical performance testing, function verification and fault diagnosis.

[0003] The patent document with the application number CN201420148830.4 discloses a test fixture for a mobile phone main board. Among them, it includes a fixed plate, a movable plate and a test device. A positioning pin for positioning the mobile phone main board is installed on the fixed plate. The test device is installed on the movable plate. A fixed slot is arranged on the movable plate. Guide sleeves and guide posts that cooperate with each other are respectively and fixedly installed on the movable plate and the fixed plate; compared with the existing special fixture, the utility model does not need to be provided with a lifting device such as a quick clamp to drive the test device to move up and down. Therefore, it is beneficial to reduce costs. When in use, only the fixed plate and the movable plate of the utility model need to be respectively fixed on a public test platform. Based on the retrieval of the above patent and the combination with the fixtures in the prior art, it is found that most fixture products tend to be simplified in structural design, and their core functions are usually only limited to using a single hydraulic rod to drive a pressure plate to fix the main board. This design mode is commonly adopted, but obviously lacks sufficient flexibility and adaptability. Specifically, this clamping mechanism with a single hydraulic rod as the core shows a low adjustment ability during the operation process. It often cannot be flexibly adjusted according to different models of mobile phone main boards or different test requirements. Due to the relatively single clamping method, this fixture may not provide the best fixing effect in actual application, thus affecting the accuracy and efficiency of the test. Content of the Utility Model

[0004] The purpose of the utility model is to provide a test fixture for a mobile phone main board to solve the problems raised in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A mobile phone motherboard test fixture, including a chassis, a clamping mechanism and a limiting mechanism are arranged above the chassis. The clamping mechanism includes a first shaft frame, a first rotating rod, a first threaded rod, a first displacement slider, a first clamping block, a first flannelette glue pad and a second clamping block. The first shaft frame is fixedly installed on the upper surface of the chassis. A first rotating rod is arranged in the middle of the first shaft frame. A first threaded rod is fixedly installed at the rear end of the first rotating rod. A first displacement slider is threadedly connected to the outer side of the first threaded rod. A first clamping block is fixedly installed at the upper end of the first displacement slider. A first flannelette glue pad is fixedly installed on the inner wall of the first clamping block. A second clamping block is arranged behind the first clamping block. The limiting mechanism includes a first hydraulic rod, an upper pushing plate and a carrier plate body. The first hydraulic rod is fixedly installed at the bottom end inside the chassis. The upper pushing plate is fixedly installed at the upper end of the first hydraulic rod. The carrier plate body is fixedly installed at the upper end of the upper pushing plate.

[0006] Optionally, the clamping mechanism further includes a first rotating disk, a second shaft frame, a second rotating rod, a second threaded rod, a second displacement slider, a second flannelette glue pad, a transmission belt, a third shaft frame, a transmission rod, a second rotating disk and a driving motor. The second displacement slider is fixedly installed at the lower end of the second clamping block.

[0007] Optionally, the second threaded rod is threadedly connected to the inner side of the second displacement slider. The second rotating rod is fixedly installed at the rear end of the second threaded rod. The second shaft frame is arranged on the outer side of the second rotating rod. The second shaft frame is fixedly installed on the upper surface of the chassis.

[0008] Optionally, the middle parts of the second threaded rod and the first threaded rod are fixedly installed with a first rotating disk. The transmission belt is arranged on the outer side of the first rotating disk. The second rotating disk is arranged below the transmission belt.

[0009] Optionally, the transmission rod is fixedly installed in the middle of the second rotating disk. The third shaft frame is arranged in front of the transmission rod. The third shaft frame is fixedly installed on the inner wall of the chassis. The driving motor is arranged behind the transmission rod.

[0010] Optionally, the limiting mechanism further includes a second hydraulic rod, a mounting plate, a connecting support plate, a fixing plate, a third hydraulic rod and a lower clamping plate. The second hydraulic rod is fixedly installed at the rear end inside the chassis.

[0011] Optionally, the mounting plate is fixedly installed at the transmission end of the second hydraulic rod. The connecting support plate is fixedly installed on the mounting plate.

[0012] Optionally, the fixing plate is fixedly installed at the upper end of the connecting support plate. The third hydraulic rod is fixedly installed in the middle of the fixing plate. The lower clamping plate is fixedly installed at the transmission end of the third hydraulic rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, a clamping mechanism is provided. The clamping mechanism adopts a double-end synchronous displacement structure, which can be flexibly adjusted according to different models of mobile phone motherboards, adapting to mobile phone bodies of various specifications, breaking through the limitation of the traditional single hydraulic rod driving the pressing plate, and greatly improving the adaptability of the clamping mechanism. The clamping mechanism can automatically adjust according to the size and shape of the mobile phone motherboard, realizing rapid switching and precise positioning, reducing the operation time and error caused by manual adjustment. By the mutual approach of the first clamping block and the second clamping block, the clamping mechanism can stably fix the mobile phone motherboard, avoiding inaccurate test results caused by shaking during the test. The use of the first flannel rubber pad and the second flannel rubber pad provides additional protection for the mobile phone motherboard, avoiding damage to the motherboard during clamping.

[0015] 2. In the present utility model, a limiting mechanism is provided. The limiting mechanism adopts three groups of hydraulic rods to work in coordination, which can precisely control the height position of the mobile phone motherboard, meet different test requirements, realize fine adjustment of the motherboard height, ensure correct docking of the motherboard with the test equipment during testing, improve the test accuracy. The design of the three groups of hydraulic rods makes the limiting mechanism have higher adjustment flexibility, can be quickly adjusted according to test requirements, and reduces the operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model in a three-dimensional front view;

[0017] Figure 2 is a schematic structural diagram of the present utility model in a planar front view;

[0018] Figure 3 is a schematic structural diagram of the present utility model in a planar left view;

[0019] Figure 4 is a schematic sectional view of the present utility model in a three-dimensional view Figure 1 ;

[0020] Figure 5 is a schematic sectional view of the present utility model in a three-dimensional view Figure 2 ;

[0021] Figure 6 is a schematic sectional view of the present utility model in a three-dimensional view Figure 3 .

[0022] In the figure: 1, chassis; 2, clamping mechanism; 201, first shaft bracket; 202, first rotating rod; 203, first threaded rod; 204, first displacement slider; 205, first clamping block; 206, first flannelette rubber pad; 207, first rotating disk; 208, second shaft bracket; 209, second rotating rod; 210, second threaded rod; 211, second displacement slider; 212, second clamping block; 213, second flannelette rubber pad; 214, drive belt; 215, third shaft bracket; 216, drive rod; 217, second rotating disk; 218, drive motor; 3, limiting mechanism; 301, first hydraulic rod; 302, upper pushing plate; 303, carrier plate body; 304, second hydraulic rod; 305, mounting plate; 306, connecting support plate; 307, fixing plate; 308, third hydraulic rod; 309, lower clamping plate. Detailed implementation mode

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 6 , in the embodiment of the present invention, a mobile phone motherboard test fixture includes a chassis 1. A clamping mechanism 2 and a limiting mechanism 3 are arranged above the chassis 1. The clamping mechanism 2 includes a first shaft frame 201, a first rotating rod 202, a first threaded rod 203, a first displacement slider 204, a first clamping block 205, a first flannelette glue pad 206, and a second clamping block 212. A first shaft frame 201 is fixedly installed on the upper surface of the chassis 1. A first rotating rod 202 is arranged in the middle of the first shaft frame 201. A first threaded rod 203 is fixedly installed at the rear end of the first rotating rod 202. A first displacement slider 204 is threadedly connected to the outside of the first threaded rod 203. A first clamping block 205 is fixedly installed at the upper end of the first displacement slider 204. A first flannelette glue pad 206 is fixedly installed on the inner wall of the first clamping block 205. A second clamping block 212 is arranged behind the first clamping block 205. The clamping mechanism 2 further includes a first rotating disk 207, a second shaft frame 208, a second rotating rod 209, a second threaded rod 210, a second displacement slider 211, a second flannelette glue pad 213, a transmission belt 214, a third shaft frame 215, a transmission rod 216, a second rotating disk 217, and a driving motor 218. A second displacement slider 211 is fixedly installed at the lower end of the second clamping block 212. A second threaded rod 210 is threadedly connected to the inside of the second displacement slider 211. A second rotating rod 209 is fixedly installed at the rear end of the second threaded rod 210. A second shaft frame 208 is arranged outside the second rotating rod 209. The second shaft frame 208 is fixedly installed on the upper surface of the chassis 1. A first rotating disk 207 is fixedly installed in the middle of the second threaded rod 210 and the first threaded rod 203. A transmission belt 214 is arranged outside the first rotating disk 207. A second rotating disk 217 is arranged below the transmission belt 214. A transmission rod 216 is fixedly installed in the middle of the second rotating disk 217. A third shaft frame 215 is arranged in front of the transmission rod 216. The third shaft frame 215 is fixedly installed on the inner wall of the chassis 1. A driving motor 218 is arranged behind the transmission rod 216;

[0027] The first shaft bracket 201 serves as the support structure of the clamping mechanism 2, providing a stable base and ensuring the stability and durability of the clamping mechanism 2 during operation. The rotational movement of the first rotating rod 202 is the key to realizing the displacement of the clamping block. The helical movement of the first threaded rod 203 is converted into the linear movement of the clamping block, providing precise displacement control, enabling the clamping block to accurately fix the main board, improving the accuracy. The first displacement slider 204 realizes linear movement driven by the threaded rod, ensuring the smoothness and synchronism of the displacement during the clamping process. The first clamping block 205 is in direct contact with the mobile phone shell or the main board of the mobile phone. The use of the first flannelette adhesive pad 206 provides a soft protective layer for the clamping block, reducing the direct pressure on the main board during the clamping process and effectively preventing scratches and damage to the surface of the main board. The second shaft bracket 208, the second rotating rod 209, the second threaded rod 210, the second displacement slider 211, the second clamping block 212, and the second flannelette adhesive pad 213 and other corresponding parts work together with the corresponding parts such as the first shaft bracket 201 to realize the symmetric clamping of the clamping mechanism 2, ensuring the balanced distribution of the clamping force and improving the stability and safety of the clamping.

[0028] The limiting mechanism 3 includes a first hydraulic rod 301, an upper pushing plate 302, and a carrier plate body 303. The first hydraulic rod 301 is fixedly installed at the bottom end inside the chassis 1. The upper end of the first hydraulic rod 301 is fixedly installed with the upper pushing plate 302. The upper end of the upper pushing plate 302 is fixedly installed with the carrier plate body 303. The limiting mechanism 3 further includes a second hydraulic rod 304, a mounting plate 305, a connecting support plate 306, a fixing plate 307, a third hydraulic rod 308, and a lower clamping plate 309. The second hydraulic rod 304 is fixedly installed at the rear end inside the chassis 1. The driving end of the second hydraulic rod 304 is fixedly installed with the mounting plate 305. The mounting plate 305 is fixedly installed with the connecting support plate 306. The upper end of the connecting support plate 306 is fixedly installed with the fixing plate 307. The middle of the fixing plate 307 is fixedly installed with the third hydraulic rod 308. The driving end of the third hydraulic rod 308 is fixedly installed with the lower clamping plate 309.

[0029] The first hydraulic rod 301 is used to control the height position of the main board. Its precise hydraulic control system ensures the fine-tuning ability of the main board position and improves the docking accuracy between the main board and the test equipment during the test process. The upper pushing plate 302 and the carrier plate body 303 are used in combination to provide a stable support platform for the main board, ensuring the smoothness and safety of the main board during the test process. The second hydraulic rod 304 controls the overall height displacement of the mounting plate 305, the connecting support plate 306, the fixing plate 307, the third hydraulic rod 308, and the lower clamping plate 309, realizing multi-dimensional adjustment of the main board position and enhancing the adaptability of the test fixture. The third hydraulic rod 308 independently controls the position of the lower clamping plate 309 and works together with the carrier plate body 303 to realize precise clamping of the main board.

[0030] The working principle of the present utility model is as follows: This mobile phone motherboard test fixture consists of a chassis 1, a clamping mechanism 2, and a limiting mechanism 3. Before using this mobile phone motherboard test fixture, it is necessary to pre-connect the driving motor 218, the first hydraulic rod 301, the second hydraulic rod 304, and the third hydraulic rod 308 to electricity and connect them to the control terminal. When using this mobile phone motherboard test fixture, the clamping mechanism 2 and the limiting mechanism 3 can be enabled synchronously, and two groups of mobile phones or mobile phone motherboard components can be clamped simultaneously. When enabling the clamping mechanism 2, first remove the rear cover of the mobile phone, place the motherboard facing up, and then place the mobile phone between the first clamping block 205 and the second clamping block 212. Start the driving motor 218 to drive the second rotating disk 217 and the transmission belt 214 to rotate, thereby driving the first rotating disk 207 to rotate, and thus driving the first threaded rod 203 and the second threaded rod 210 to rotate. The first threaded rod 203 and the second threaded rod 210 are in a symmetric state. When the first threaded rod 203 drives the first displacement slider 204 and the first clamping block 205 to move backward, the second threaded rod 210 will drive the second displacement slider 211 and the second clamping block 212 to move forward, thereby achieving the effect of the first clamping block 205 and the second clamping block 212 approaching each other. At this time, the first clamping block 205 and the second clamping block 212 will clamp the mobile phone, and the first flannelette rubber pad 206 and the second flannelette rubber pad 213 will provide effective protection to avoid damaging the mobile phone. When enabling the limiting mechanism 3, place the mobile phone motherboard to be debugged on the carrier body 303. Enabling the first hydraulic rod 301 can control the height position of the mobile phone motherboard. Enabling the second hydraulic rod 304 can control the overall height displacement of the mounting plate 305, the connecting support plate 306, the fixing plate 307, the third hydraulic rod 308, and the lower clamping plate 309. Enabling the third hydraulic rod 308 can control the position of the lower clamping plate 309. Controlling the lower clamping plate 309 to move downward can cooperate with the carrier body 303 to clamp the mobile phone motherboard to be debugged. To sum up, the clamping mechanism 2 adopts a double-end synchronous displacement structure, which can drive the double-end clamping blocks to continuously approach and stably clamp the mobile phone, motherboard or other components. The clamping range of the clamping mechanism 2 is relatively large, and it can adapt to mobile phone bodies of various specifications. The limiting mechanism 3 adopts three groups of hydraulic rods to work in coordination. During the process of clamping and testing the mobile phone motherboard, the three groups of hydraulic rods can all perform displacement, effectively improving the adjustability and flexibility of this fixture.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A mobile phone motherboard test fixture, comprising a chassis (1), characterized in that: A clamping mechanism (2) and a limiting mechanism (3) are arranged above the chassis (1); the clamping mechanism (2) comprises a first shaft frame (201), a first rotating rod (202), a first threaded rod (203), a first displacement slider (204), a first clamping block (205), a first velvet-cotton rubber pad (206) and a second clamping block (212); the first shaft frame (201) is fixedly mounted on the upper surface of the chassis (1); a first rotating rod (202) is arranged in the middle of the first shaft frame (201); a first threaded rod (203) is fixedly mounted at the rear end of the first rotating rod (202); the outer side of the first threaded rod (203) is threadedly connected to the first displacement slider; Block (204), a first clamping block (205) is fixedly installed on the upper end of the first displacement slider (204), a first velvet pad (206) is fixedly installed on the inner wall of the first clamping block (205), a second clamping block (212) is arranged behind the first clamping block (205), the limiting mechanism (3) comprises a first hydraulic rod (301), an upper push plate (302) and a carrier body (303), the first hydraulic rod (301) is fixedly installed on the bottom end inside the chassis (1), the upper push plate (302) is fixedly installed on the upper end of the first hydraulic rod (301), and the carrier body (303) is fixedly installed on the upper end of the upper push plate (302).

2. A mobile phone motherboard test fixture according to claim 1, characterized in that: The clamping mechanism (2) further comprises a first rotating disk (207), a second shaft frame (208), a second rotating rod (209), a second threaded rod (210), a second displacement slider (211), a second velvet-cotton rubber pad (213), a transmission belt (214), a third shaft frame (215), a transmission rod (216), a second rotating disk (217) and a driving motor (218); the second displacement slider (211) is fixedly mounted on the lower end of the second clamping block (212).

3. A mobile phone motherboard test fixture according to claim 2, characterized in that: The inner side of the second displacement slider (211) is threadedly connected to a second threaded rod (210); a second rotating rod (209) is fixedly mounted on the rear end of the second threaded rod (210); a second shaft frame (208) is disposed on the outer side of the second rotating rod (209); and the second shaft frame (208) is fixedly mounted on the upper surface of the chassis (1).

4. A mobile phone motherboard test fixture according to claim 2, characterized in that: A first rotating disk (207) is fixedly mounted in the middle of the second threaded rod (210) and the first threaded rod (203); a transmission belt (214) is arranged on the outer side of the first rotating disk (207); and a second rotating disk (217) is arranged below the transmission belt (214).

5. A mobile phone motherboard test fixture according to claim 4, characterized in that: A transmission rod (216) is fixedly mounted in the middle of the second rotating disk (217); a third shaft frame (215) is arranged in front of the transmission rod (216); the third shaft frame (215) is fixedly mounted on the inner wall of the chassis (1); and a driving motor (218) is arranged behind the transmission rod (216).

6. A mobile phone motherboard test fixture according to claim 1, characterized in that: The limiting mechanism (3) further comprises a second hydraulic rod (304), a mounting plate (305), a connecting support plate (306), a fixing plate (307), a third hydraulic rod (308) and a lower clamping plate (309); the second hydraulic rod (304) is fixedly mounted at the rear end inside the chassis (1).

7. A mobile phone motherboard test fixture according to claim 6, characterized in that: A mounting plate (305) is fixedly mounted on the transmission end of the second hydraulic rod (304), and a connecting support plate (306) is fixedly mounted on the mounting plate (305).

8. The mobile phone motherboard test fixture according to claim 6, characterized in that: A fixing plate (307) is fixedly mounted on the upper end of the connecting support plate (306), a third hydraulic rod (308) is fixedly mounted on the middle of the fixing plate (307), and a lower clamping plate (309) is fixedly mounted on the transmission end of the third hydraulic rod (308).

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