Mobile phone mainboard test fixture

Abstract

The utility model provides a mobile phone mainboard test fixture which comprises a clamping seat, a grid supporting table is arranged in the middle of the upper end of the clamping seat, the clamping seat is slidably connected with clamping plates on the two sides of the grid supporting table, a plurality of grid holes distributed in parallel are downwards formed in the grid supporting table, and the grid supporting table is connected with the clamping plates in a sliding mode. A plurality of grating sliding strips are downwards arranged on the opposite sides of each clamping plate; the side, away from the corresponding grating sliding strip, of each clamping plate is slidably connected with a push-pull strip, the side, away from the corresponding grating sliding strip, of each clamping plate is provided with a pressure sensor, each push-pull strip is provided with an elastic contact strip corresponding to the corresponding pressure sensor, and a supporting spring is connected between each clamping plate and the corresponding push-pull strip. Driving motors used for driving the corresponding push-pull strips to slide are arranged on the two sides of the clamping base. The main board is clamped in a grid extrusion mode, the thin main board can be effectively clamped, elastic buffering can be achieved during clamping, and the main board can be effectively prevented from being damaged due to the fact that clamping force is too large.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the mainboard test technical field relates to a mobile phone mainboard test fixture. BACKGROUND

[0002] In modern electronic manufacturing industry, as a highly integrated portable communication device, the quality and performance test of the core component of the mobile phone mainboard is the key link to ensure product reliability. With the increasing complexity and diversification of smart phone functions, more and more high-performance components are integrated on the mainboard, and at the same time, in order to meet the needs of consumers for light and thin design, the design of mobile phone mainboard gradually tends to be smaller and thinner. This trend has brought new challenges to the traditional mobile phone mainboard test method.

[0003] In the process of mobile phone mainboard test, test fixture plays a vital role. The test fixture not only needs to fix the mainboard to be tested stably on the test platform, but also needs to connect the test instrument through precise electrical contact points, so as to accurately evaluate the functionality and electrical characteristics of the mainboard. However, the design of traditional fixture is usually based on thicker and simpler circuit board, which exposes many shortcomings when facing today's ultra-thin mobile phone mainboard.

[0004] Firstly, as the mainboard becomes thinner, it is easy to cause physical damage to the mainboard when using conventional clamps for clamping operation. The traditional clamp may exert excessive pressure or uneven pressure distribution, which may cause scratches, bending or even breakage on the surface of the mainboard. This is undoubtedly a serious problem for modern mobile phone mainboard containing precision components and fine lines, because any minor damage may cause irreparable functional failure.

[0005] Secondly, the ultra-thin design makes it difficult to effectively clamp the mainboard. When the thickness of the mainboard is reduced to a certain extent, the traditional mechanical clamping method cannot provide enough friction to ensure the stability of the mainboard during the whole test process. This not only affects the accuracy of test results, but also may cause test failure or misjudgment. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of mobile phone mainboard test fixture, adopts the way of grid extrusion to hold mainboard, can effectively hold the mainboard of thinner, and still can carry out elastic buffering when clamping, can effectively prevent that clamping strength is too large and damages mainboard.

[0007] To solve the above technical problems, the utility model provides a kind of mobile phone mainboard test fixture, including clamping seat, the middle part of the upper end of the clamping seat is provided with grid support table, the two sides of the grid support table in the clamping seat are slidably connected with clamping plate, the lower end of each clamping plate is slidably connected with the upper end of the grid support table, the grid support table is downwardly provided with several grid holes along the length direction of the clamping plate and parallel distribution, the opposite side of each clamping plate is downwardly provided with multiple grid slides corresponding to the grid hole one by one;

[0008] The opposite side of each clamping plate away from corresponding grid slide is slidably connected with push-pull strip, each push-pull strip is provided with elastic contact strip corresponding to corresponding pressure sensor and capable of being compressed, each clamping plate and corresponding push-pull strip are connected with support spring, each support spring leaves gap between corresponding push-pull strip and corresponding push-pull strip, the two sides of the clamping seat are provided with driving motor for driving corresponding push-pull strip sliding.

[0009] By adopting the above technical scheme, when the mobile phone mainboard needs to be tested, the mobile phone mainboard is placed on the grid support table, the linear motor drives the two push-pull strips to push the clamping plate inward, and the clamping plate is driven to press the mainboard inward by the action of the support spring, when the grid slide contacts the mobile phone mainboard, the resistance compresses the support spring, and the first level buffer is carried out, and when the pressure sensor contacts the elastic contact strip during continuous extrusion, it is judged that the mobile phone mainboard is clamped, the linear motor is controlled to stop running, the clamping of the mobile phone mainboard is completed, and the elastic contact strip plays the role of second level buffer, further preventing the mobile phone mainboard from being damaged during clamping.

[0010] The utility model further sets up that the opposite side of each clamping plate away from corresponding grid slide is provided with support sliding sleeve, one end of each support sliding sleeve close to corresponding grid slide is sealed, the support spring is provided with one in each support sliding sleeve, and each push-pull strip is provided with push shaft slidably connected with corresponding support sliding sleeve in the direction of corresponding clamping plate.

[0011] The utility model further sets up that the opposite side of each clamping plate away from corresponding grid slide is provided with limit sliding sleeve, each push-pull strip is provided with limit sliding shaft slidably connected with corresponding limit sliding sleeve in the direction of corresponding clamping plate, and the free end of each limit sliding shaft passes through corresponding limit sliding sleeve and is connected with limit cap.

[0012] The utility model further sets up that each driving motor is linear motor, and each linear motor includes magnetic rail set on the clamping seat and perpendicular to the grid support table, and mover set on the lower end of corresponding push-pull strip and slidably connected with corresponding magnetic rail.

[0013] The utility model further sets up, the upper end of clamping seat is set up limit slide rail at both sides of every magnetic track, every clamping plate is away from the side of corresponding grid slide strip all downwardly provided with two first sliding block with corresponding limit slide rail sliding connection, the lower edge of every push-pull strip is provided with two second sliding block with corresponding limit slide rail sliding connection downwardly.

[0014] The utility model further sets up, every elastic contact strip adopts elastic rubber material quality.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] First, the utility model discloses grid slide strip from both sides to the inner extrusion clamping cell -phone mainboard, compared with the conventional tweezers type clamping structure, can more easily hold the thinner mainboard, and because only with the edge contact of mainboard, more not easy to damage the element on the mainboard.

[0017] Second, the utility model discloses when clamping cell -phone mainboard, adopts support spring and elastic contact strip to carry out two-stage buffering, prevents suddenly extrusion degree too big damage to mainboard, simultaneously after elastic contact strip and pressure sensor contact, pressure sensor detects pressure, and automatically stops extrusion inward. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the utility model discloses;

[0019] Figure 2 It is the utility model discloses the explosion map;

[0020] Figure 3 It is the overall structure schematic diagram of push-pull strip;

[0021] Figure 4 Mainly used for showing the support spring in support sliding sleeve.

[0022] Wherein, 1, clamping seat, 2, grid support table, 3, clamping plate, 4, grid hole, 5, grid slide strip, 6, push-pull strip, 7, pressure sensor, 8, elastic contact strip, 9, support sliding sleeve, 10, support spring, 11, push shaft, 12, limit sliding sleeve, 13, limit slide shaft, 14, limit cap, 15, magnetic track, 16, mover, 17, limit slide rail, 18, first sliding block, 19, second sliding block. DETAILED DESCRIPTION

[0023] The utility model discloses a kind of mobile phone mainboard test fixtures, which are further described in detail below in conjunction with the drawings and specific embodiments. The advantages and features of the utility model will be clearer according to the following description. It should be noted that the drawings are all very simplified and use non-precise proportions, and are only used to facilitate and clarify the purpose of assisting in describing the embodiments of the utility model. The same or similar reference signs in the drawings represent the same or similar parts.

[0024] Embodiments, with reference to Figures 1-4 A mobile phone mainboard test fixture includes a clamping seat 1, a grid support table 2 is arranged at the middle of the upper end of the clamping seat 1, a clamping plate 3 is slidably connected to the left and right sides of the grid support table 2, the lower end of each clamping plate 3 is slidably connected to the upper end of the grid support table 2, the grid support table 2 is provided with a plurality of grid holes 4 arranged along the length direction of the clamping plate 3 and distributed side by side downward, and a plurality of grid sliding strips 5 corresponding to the grid holes 4 are arranged on the opposite side of each clamping plate 3 downward. A push-pull strip 6 is slidably connected to the side of each clamping plate 3 away from the corresponding grid sliding strip 5, a pressure sensor 7 is arranged on the side of each clamping plate 3 away from the corresponding grid sliding strip 5, each push-pull strip 6 is provided with an elastic contact strip 8 corresponding to the corresponding pressure sensor 7 and capable of being compressed, and the elastic contact strip 8 is made of elastic rubber material, so that the pressure sensor 7 can detect pressure and have elastic buffering after contacting the elastic contact strip 8, preventing damage to the mainboard.

[0025] Two support sliding sleeves 9 are arranged on the side of each clamping plate 3 away from the corresponding grid sliding strip 5, one end of each support sliding sleeve 9 near the corresponding grid sliding strip 5 is sealed, a support spring 10 is arranged in each support sliding sleeve 9, each push-pull strip 6 is provided with a push shaft 11 slidably connected to the corresponding support sliding sleeve 9 in the direction of the corresponding clamping plate 3, two limiting sliding sleeves 12 are arranged on the side of each clamping plate 3 away from the corresponding grid sliding strip 5, each push-pull strip 6 is provided with a limiting sliding shaft 13 slidably connected to the corresponding limiting sliding sleeve 12 in the direction of the corresponding clamping plate 3, a limiting cap 14 is connected to the free end of each limiting sliding shaft 13 through the corresponding limiting sliding sleeve 12, each support spring 10 leaves a gap between the corresponding push-pull strip 6 and the corresponding push-pull strip 6, and the support spring 10 is kept in a compressed state through the connection of the limiting sliding shaft 13 and the limiting sliding sleeve 12, so that there is enough clamping force when clamping the mainboard.

[0026] The two sides of the clamping seat 1 are provided with a linear motor for driving the corresponding push-pull strip 6 to slide, each linear motor comprises a magnetic track 15 provided on the clamping seat 1 and perpendicular to the grid support table 2, and a mover 16 provided on the lower end of the corresponding push-pull strip 6 and in sliding connection with the corresponding magnetic track 15. The upper end of the clamping seat 1 is provided with a limiting slide rail 17 on both sides of each magnetic track 15, and each clamping plate 3 is provided with two first sliding blocks 18 in sliding connection with the corresponding limiting slide rail 17 downward away from the corresponding grid slide strip 5, and the lower edge of each push-pull strip 6 is provided with two second sliding blocks 19 in sliding connection with the corresponding limiting slide rail 17 downward.

[0027] Working principle: when the mobile phone mainboard needs to be tested, the mobile phone mainboard is placed on the grid support table 2, the linear motor drives the two push-pull strips 6 to push the clamping plate 3 inward, and the clamping plate 3 is driven to press the mainboard inward through the action of the supporting spring 10, when the grid slide strip 5 contacts the mobile phone mainboard, the supporting spring 10 is compressed to generate resistance, and the pressure sensor 7 contacts the elastic contact strip 8 when the clamping plate 3 is continuously pressed, at this time, it is judged that the mobile phone mainboard is clamped, the linear motor is controlled to stop moving, the clamping of the mobile phone mainboard is completed, and the elastic contact strip 8 plays a role of secondary buffering, further preventing the mobile phone mainboard from being damaged during clamping.

[0028] It should be noted that each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to.

[0029] The above description is only a description of the preferred embodiment of the utility model, and does not limit the scope of the utility model, and any change or modification of the above disclosure by a person skilled in the art is within the protection scope of the claims.

Claims

1. A mobile phone motherboard testing fixture, comprising a clamping base (1), characterized in that, A grid support platform (2) is provided at the middle of the upper end of the clamping seat (1). The clamping seat (1) is slidably connected to the two sides of the grid support platform (2). The lower end of each clamping plate (3) is slidably connected to the upper end of the grid support platform (2). The grid support platform (2) is provided with a plurality of grid holes (4) arranged and arranged in parallel along the length direction of the clamping plate (3). On the opposite side of each clamping plate (3), a plurality of grid slide bars (5) corresponding one-to-one with the grid holes (4) are provided downward. Each clamping plate (3) is slidably connected to a push-pull strip (6) on the side away from the corresponding grid slide strip (5). Each clamping plate (3) is provided with a pressure sensor (7) on the side away from the corresponding grid slide strip (5). Each push-pull strip (6) is provided with an elastic contact strip (8) that corresponds to the corresponding pressure sensor (7) and can be compressed. Each clamping plate (3) and the corresponding push-pull strip (6) are connected with a support spring (10). Each support spring (10) leaves a gap between the corresponding push-pull strip (6) and the corresponding push-pull strip (6). Both sides of the clamping seat (1) are provided with a drive motor for driving the corresponding push-pull strip (6) to slide.

2. The mobile phone motherboard testing fixture according to claim 1, characterized in that, Each clamping plate (3) is provided with a support sleeve (9) on the side away from the corresponding grid slide (5). Each support sleeve (9) is sealed at the end near the corresponding grid slide (5). Each support spring (10) is provided in each support sleeve (9). Each push bar (6) is provided with a push shaft (11) that is slidably connected to the corresponding support sleeve (9) in the direction of the corresponding clamping plate (3).

3. A mobile phone motherboard testing fixture according to claim 2, characterized in that, Each clamping plate (3) is provided with a limiting sleeve (12) on the side away from the corresponding grid slide (5). Each push-pull strip (6) is provided with a limiting slide shaft (13) that is slidably connected to the corresponding limiting sleeve (12) in the direction of the corresponding clamping plate (3). The free end of each limiting slide shaft (13) passes through the corresponding limiting sleeve (12) and is connected to a limiting cap (14).

4. A mobile phone motherboard testing fixture according to claim 1, characterized in that, Each drive motor is a linear motor, and each linear motor includes a magnetic rail (15) disposed on the clamping seat (1) and perpendicular to the grid support platform (2), and a mover (16) disposed at the lower end of the corresponding push-pull bar (6) and slidably connected to the corresponding magnetic rail (15).

5. A mobile phone motherboard testing fixture according to claim 4, characterized in that, The upper end of the clamping seat (1) is provided with a limiting slide rail (17) on both sides of each magnetic rail (15). Each clamping plate (3) is provided with two first sliders (18) that are slidably connected to the corresponding limiting slide rail (17) on the side away from the corresponding grid slide rail (5). Each push-pull bar (6) is provided with two second sliders (19) that are slidably connected to the corresponding limiting slide rail (17) on the lower side.

6. A mobile phone motherboard testing fixture according to claim 1, characterized in that, Each elastic contact strip (8) is made of elastic rubber.

Images