Smart watch mainboard test fixture

Abstract

The utility model belongs to the technical field of circuit board testing, and particularly relates to an intelligent watch mainboard testing jig. Comprising a carrier plate; the objective table is arranged on the carrier plate and is used for placing a mainboard to be tested; the overturning seat is arranged on the carrier plate and is close to the objective table; the upper die assembly is rotatably mounted on the overturning seat; the upper die assembly comprises an overturning plate, a floating plate is arranged on the side, close to the objective table, of the overturning plate, and the floating plate is in floating connection with the overturning plate. A microneedle module is arranged between the turnover plate and the floating plate, and the microneedle module is in floating connection with the floating plate; the overturning plate is provided with an extrusion assembly, and the extrusion assembly is used for extruding the microneedle module to vertically and downwards abut against the to-be-tested mainboard for a conduction test. According to the utility model, the intelligent watch mainboard can be accurately and efficiently tested, the accurate and stable contact between the micro probe and the test probe point can be realized on the premise of not damaging the mainboard, the accuracy and reliability of the test result can be ensured, the production cost can be reduced, and the test yield can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board testing, and particularly relates to a testing fixture for a smart watch main board. Background Art

[0002] In recent years, with the rapid development of the smart watch market and the continuous improvement of consumers' requirements for product performance, the manufacturing efficiency and product quality control of smart watches have become crucial links in the manufacturing process. In the production process of smart watches, as the core component, the stability and reliability of the main board directly affect the overall performance and user experience of smart watches. Therefore, accurate and efficient testing of the smart watch main board is a key step to ensure product quality.

[0003] Due to the high integration and small size of the smart watch main board, the diameter of the test pin points on it is tiny, and the spacing between the pin points is compact, which brings great challenges to the testing work. Traditionally, manufacturers usually use Pogo micro-needle modules to conduct conduction tests. These micro-needle modules achieve precise contact with the test pin points on the main board through a fine mechanical structure to verify the electrical connection performance of the main board.

[0004] However, there are some problems in the operation process of the existing testing fixtures for smart watch main boards. For example, some testing fixtures adopt a flip-up upper die assembly, and the Pogo micro-needle module is brought into contact with the test pin points on the main board through a flipping action. However, during the flipping process, due to a certain angle between the micro-probes and the main board, this angle may cause the probes to scratch the surface of the main board or damage the probes themselves, thereby reducing the test yield rate and increasing production costs.

[0005] Therefore, there is an urgent need for a testing fixture for a smart watch main board that is not prone to scratching the surface of the main board by the probes or damaging the probes themselves. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a testing fixture for a smart watch main board aiming at the deficiencies of the existing technology, which can achieve accurate and efficient testing of the smart watch main board, can realize precise and stable contact between the micro-probes and the test pin points without damaging the main board, ensure the accuracy and reliability of the test results, reduce production costs, and improve the test yield rate.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A testing fixture for a smart watch main board, comprising:

[0009] A carrier board;

[0010] A loading platform arranged on the carrier board, and the loading platform is used for placing the main board to be tested;

[0011] A turning seat disposed on the carrier plate and close to the loading platform;

[0012] An upper mold assembly is rotatably mounted on the flip seat; the upper mold assembly includes a flip plate, a floating plate is provided on the side of the flip plate close to the stage, and the floating plate is floatingly connected to the flip plate; a microneedle module is provided between the flip plate and the floating plate, and the microneedle module is floatingly connected to the floating plate; an extrusion assembly is provided on the flip plate, and the extrusion assembly is used to squeeze the microneedle module vertically downward to abut against the mainboard to be tested for a conduction test.

[0013] Furthermore, the flip plate is provided with an extrusion port corresponding to the position where the microneedle module is located, and the extrusion assembly is installed at the extrusion port and extrude the microneedle module through the extrusion port.

[0014] Furthermore, the extrusion assembly includes a cam wrench, and when the cam wrench is bent, the cam of the cam wrench squeezes the microneedle module through the extrusion port.

[0015] Furthermore, the extrusion assembly also includes a wrench bracket fixed at the extrusion port, the wrench bracket is provided with a wrench shaft, and the cam wrench is rotatably mounted on the wrench shaft.

[0016] Furthermore, a first floating spring is provided between the floating plate and the flip plate.

[0017] Furthermore, the floating plate is provided with a module installation opening which passes through the floating plate, the microneedle module is installed in the module installation opening, and a second floating spring is further provided between the microneedle module and the floating plate.

[0018] Furthermore, a clip is provided on one end of the flip plate away from the flip seat, and a clip groove is provided on the loading platform. When the upper mold assembly is buckled on the loading platform, the clip cooperates with the clip groove to lock the upper mold assembly and the loading platform in a relatively fixed state.

[0019] Furthermore, the flip seat includes a flip shaft, and the flip plate is rotatably connected to the flip shaft; a torsion spring is also provided on the flip shaft to make the upper mold assembly tend to be in an open state.

[0020] Furthermore, when the extrusion assembly extrudes the microneedle module, the limiting protrusion of the extrusion assembly falls into the movable opening of the operating end of the clip, so that the clip cannot be unlocked.

[0021] Further, a first positioning member is provided on the carrier plate, a positioning groove matching with the first positioning member is provided on the stage, and the stage is detachably mounted on the carrier plate; a second positioning member is further provided below the upper die assembly. When the upper die assembly is buckled on the stage, the second positioning member is located in the positioning groove.

[0022] Advantages of the present utility model:

[0023] In the present utility model, a floating plate is arranged on the flipping plate, and the micro-needle module is floatingly connected between the flipping plate and the floating plate. The micro-needle module vertically presses against the main board to be tested for conduction testing, ensuring the accuracy and stability of the testing; by setting a cam wrench, effective control and precise adjustment of the micro-needle module are realized; by setting a clip on the flipping plate and a clip groove on the stage, the stability of the upper die assembly during the testing process is ensured; by setting a detachable and positionally installed stage, the versatility and replaceability of the testing fixture are improved; by setting a second positioning member below the upper die assembly to cooperate with the positioning groove of the stage, the connection stability and reliability between the upper die assembly and the stage are enhanced; the present utility model can accurately and efficiently test the main board of the smart watch, and can realize precise and stable contact between the micro-probe and the test needle point without damaging the main board, ensuring the accuracy and reliability of the test results, reducing the production cost, and improving the qualified rate of the test. Description of the drawings

[0024] Att Figure 1 is a schematic structural diagram when the smart watch main board testing fixture of the present utility model is buckled;

[0025] Att Figure 2 is a schematic structural diagram when the smart watch main board testing fixture of the present utility model is opened;

[0026] Att Figure 3 is an exploded structural diagram of the smart watch main board testing fixture of the present utility model;

[0027] Att Figure 4 is an exploded structural diagram of the upper die assembly of the present utility model;

[0028] Identifications in the figure: 1 - carrier board, 110 - first positioning member; 2 - stage, 210 - clamping groove, 220 - positioning groove; 3 - flipping base, 310 - flipping rotating shaft, 320 - torsion spring; 4 - upper die assembly, 410 - flipping plate, 411 - extrusion port, 420 - floating plate, 421 - module installation port, 430 - micro-needle module, 440 - extrusion assembly, 441 - cam wrench, 442 - wrench bracket, 443 - wrench rotating shaft, 444 - limiting protrusion, 450 - first floating spring, 460 - second floating spring, 470 - clamp, 471 - operating end movable port, 480 - second positioning member; 5 - main board to be tested. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 limiting the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0032] In the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; 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 internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Refer to the attached Figure 1 to the attachedFigure 4 , the figure shows a specific embodiment of a test fixture for the main board of an intelligent watch provided by the present utility model.

[0034] Refer to the appendix Figure 1 , the test fixture for the main board of the intelligent watch includes:

[0035] A carrier board 1;

[0036] A loading platform 2 provided on the carrier board 1, and the loading platform 2 is used to place the main board 5 to be tested;

[0037] A flipping seat 3 provided on the carrier board 1 and close to the loading platform 2;

[0038] An upper die assembly 4 rotatably mounted on the flipping seat 3; the upper die assembly 4 includes a flipping plate 410, a floating plate 420 is provided on one side of the flipping plate 410 close to the loading platform 2, and the floating plate 420 is floatingly connected to the flipping plate 410; a micro-needle module 430 is provided between the flipping plate 410 and the floating plate 420, and the micro-needle module 430 is floatingly connected to the floating plate 420; an extrusion assembly 440 is provided on the flipping plate 410, and the extrusion assembly 440 is used to extrude the micro-needle module 430 to vertically press against the main board 5 to be tested for conduction testing.

[0039] Refer to the appendix Figure 2 and the appendix Figure 3 , in the above embodiment, when in use, open the upper die assembly 4, place the main board 5 to be tested of the intelligent watch face up on the loading platform 2; flip the upper die assembly 4, and the upper die assembly 4 rotates around the flipping seat 3 and is buckled to the loading platform 2. During the buckling process, the floating plate 420 first contacts the loading platform 2 for pre-positioning to ensure that the upper die assembly 4 is aligned with the main board 5 to be tested on the loading platform 2. At this time, the micro-needle module 430 is in a vertically downward state. Since the micro-needle module 430 is arranged between the floating plate 420 and the flipping plate 410 and is floatingly connected to the floating plate 420, the micro-needle module 430 does not contact the main board 5 to be tested at this time. Operate the extrusion assembly 440 to make the extrusion assembly 440 extrude the micro-needle module 430, and the micro-needle module 430 vertically contacts the main board 5 to be tested for conduction testing. Since during this process, pre-positioning has been performed by the floating plate 420 before the micro-needle module 430 contacts the main board 5 to be tested, the micro-needle module 430 will not scratch the main board 5 to be tested.

[0040] Refer to the appendix Figure 4, in the above embodiments, the flipping plate 410 is provided with an extrusion opening 411 corresponding to the position where the microneedle module 430 is located. The extrusion assembly 440 is installed at the extrusion opening 411 and extrudes the microneedle module 430 through the extrusion opening 411. In some alternative embodiments, the extrusion assembly 440 can be a pressable button, or a driving mechanism such as a motor or a cylinder that can be used to drive the microneedle module 430 to move downward. In this embodiment, the extrusion assembly 440 includes a cam wrench 441. When the cam wrench 441 is toggled, the cam of the cam wrench 441 extrudes the microneedle module 430 through the extrusion opening 411. In the embodiment, when the cam wrench 441 is in the open state, the convex surface of the cam of the cam wrench 441 is staggered from the top of the microneedle module 430, and the microneedle module 430 floats upward without contacting the main board 5 to be tested. When the cam wrench 441 is toggled so that the convex surface of the cam of the cam wrench 441 abuts against the top of the microneedle module 430, the microneedle module 430 will move downward and start the conduction test.

[0041] Refer to the appendix Figure 4 , in the above embodiments, the extrusion assembly 440 further includes a wrench bracket 442 fixed at the extrusion opening 411. The wrench bracket 442 is provided with a wrench rotating shaft 443, and the cam wrench 441 is rotatably installed on the wrench rotating shaft 443. In the embodiment, the wrench bracket 442 straddles the extrusion opening 411, and the wrench rotating shaft 443 is located directly above the extrusion opening 411. The cam wrench 441 rotates around the wrench rotating shaft 443 as the rotation center.

[0042] Refer to the appendix Figure 4 , in the above embodiments, a first floating spring 450 is provided between the floating plate 420 and the flipping plate 410. In the embodiment, a pin on the flipping plate 410 passes through the flipping plate 410 and is connected to the floating plate 420. The pin is fixed to the floating plate 420 but is movably connected to the flipping plate 410. When the upper die assembly 4 is closed, the floating plate 420 contacts the loading platform 2 and compresses the first floating spring 450.

[0043] Refer to the appendix Figure 4 , in the above embodiments, the floating plate 420 is provided with a module installation opening 421 penetrating the floating plate 420. The microneedle module 430 is installed in the module installation opening 421, and a second floating spring 460 is further provided between the microneedle module 430 and the floating plate 420. In the embodiment, the module installation opening 421 corresponds to the extrusion opening 411 in the longitudinal space. When the cam wrench 441 is toggled so that the cam extrudes the microneedle module 430 through the extrusion opening 411, the microneedle module 430 moves downward in the module installation opening 421 and abuts against the main board 5 to be tested. During this process, the second floating spring 460 is compressed.

[0044] Refer to the appendix Figure 3In the above embodiment, a clip 470 is provided on the end of the flip plate 410 away from the flip seat 3, and a clip groove 210 is provided on the stage 2. When the upper mold assembly 4 is buckled on the stage 2, the clip 470 cooperates with the clip groove 210 to lock the upper mold assembly 4 and the stage 2 in a relatively fixed state. In the embodiment, the clips 470 are located on both sides of the end of the flip plate 410 away from the flip seat 3, that is, the locking is achieved with the stage 2 through two clips 470. Among them, the clamping end of the clip 470 faces downward, and the operating end faces upward.

[0045] See attached Figure 3 In the above embodiment, the flip seat 3 includes a flip shaft 310, and the flip plate 410 is rotatably connected to the flip shaft 310; the flip shaft 310 is also provided with a torsion spring 320, which is used to make the upper mold assembly 4 tend to be in an open state. In the embodiment, during the test, since the torsion spring 320 makes the upper mold assembly 4 tend to be in an open state, it is necessary to overcome the torsion of the torsion spring 320 to press the flip upper mold assembly 4 downward to buckle, and when the clamping end of the clip 470 is aligned with the clip groove 210, the clip 470 hooks the clip groove 210 to lock the upper mold assembly 4 on the stage 2.

[0046] See attached Figure 4 In the above embodiment, when the squeezing assembly 440 squeezes the microneedle module 430, the limiting protrusion 444 of the squeezing assembly 440 falls into the movable opening 471 of the operating end of the clip 470, so that the clip 470 cannot be unlocked. In the embodiment, when the clip 470 clamps the clip groove 210, the movable opening 471 of the operating end of the clip 470 is vacated, and the cam wrench 441 is bent to squeeze the microneedle module 430. At this time, the limiting protrusion 444 of the cam wrench 441 falls into the movable opening 471 of the operating end of the clip 470. If you try to pinch the movable end of the clip 470 to unlock it at this time, you will be restricted by the limiting protrusion 444, resulting in failure to unlock. Therefore, it is necessary to lift the cam wrench 441 first, and the microneedle module 430 will be released from the squeezed state and bounce up. At this time, the movable opening 471 of the operating end will also be vacated, and then the clip 470 can be unlocked. Vice versa, when the cam wrench 441 is bent to squeeze the microneedle module 430 without fastening the upper mold assembly 4, the clamp 470 cannot open the clamping end due to the restriction of the movable opening 471 of the operating end, so the upper mold assembly 4 cannot be successfully fastened, ensuring the safe use of the microneedle module 430.

[0047] See attached Figure 3, in the above embodiment, a first positioning member 110 is provided on the carrier board 1, a positioning groove 220 mating with the first positioning member 110 is provided on the stage 2, and the stage 2 is detachably mounted on the carrier board 1; a second positioning member 480 is further provided below the upper die assembly 4. When the upper die assembly 4 is buckled on the stage 2, the second positioning member 480 is located in the positioning groove 220. In the embodiment, the stage 2 can be replaced according to different types and specifications of the main board 5 to be tested. At the same time, the first positioning member 110 and the second positioning member 480 are used in cooperation with the positioning groove 220 for positioning, enhancing the connection stability and reliability between the upper die assembly 4 and the stage 2.

[0048] In summary, the present embodiment provides an intelligent watch main board test fixture. By providing a floating board 420 on the flipping board 410 and floatingly connecting the micro-needle module 430 between the flipping board 410 and the floating board 420, the micro-needle module 430 vertically presses against the main board 5 to be tested for conduction testing, ensuring the accuracy and stability of the testing; by providing a cam wrench 441, effective control and precise adjustment of the micro-needle module 430 are achieved; by providing a clamping buckle 470 on the flipping board 410 and a clamping buckle groove 210 on the stage 2, the stability of the upper die assembly 4 during the testing process is ensured; by providing a detachable and positionally mounted stage 2, the versatility and replaceability of the test fixture are improved; by providing a second positioning member 480 below the upper die assembly 4 to cooperate with the positioning groove 220 of the stage 2, the connection stability and reliability between the upper die assembly 4 and the stage 2 are enhanced; the present embodiment can accurately and efficiently test the intelligent watch main board, and can achieve precise and stable contact between the micro-probe and the test needle point without damaging the main board, ensuring the accuracy and reliability of the test results, reducing production costs, and improving the test yield.

[0049] The above-described embodiments are only one of the more preferred specific embodiments of the present invention. Ordinary changes and substitutions made by technicians in the field within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A smart watch motherboard test fixture, characterized in that: include: Carrier board (1); A loading platform (2) disposed on the carrier plate (1), the loading platform (2) being used to place the mainboard (5) to be tested; A turning seat (3) disposed on the carrier plate (1) and close to the object carrier (2); An upper mold assembly (4) is rotatably mounted on the flip seat (3); the upper mold assembly (4) comprises a flip plate (410); a floating plate (420) is provided on a side of the flip plate (410) close to the stage (2); the floating plate (420) is connected to the flip plate (410) in a floating manner; a microneedle module (430) is provided between the flip plate (410) and the floating plate (420); the microneedle module (430) is connected to the floating plate (420) in a floating manner; an extrusion assembly (440) is provided on the flip plate (410); the extrusion assembly (440) is used to extrude the microneedle module (430) vertically downward to abut against the main board (5) to be tested for a conduction test.

2. A smart watch motherboard test fixture according to claim 1, characterized in that: The flip plate (410) is provided with an extrusion port (411) at a position corresponding to the location of the microneedle module (430); the extrusion assembly (440) is installed at the extrusion port (411) and extrudes the microneedle module (430) through the extrusion port (411).

3. A smart watch motherboard test fixture according to claim 2, characterized in that: The extrusion assembly (440) comprises a cam wrench (441), and when the cam wrench (441) is bent, the cam of the cam wrench (441) squeezes the microneedle module (430) through the extrusion opening (411).

4. A smart watch motherboard test fixture according to claim 3, characterized in that: The extrusion assembly (440) further comprises a wrench bracket (442) fixed at the extrusion opening (411), the wrench bracket (442) being provided with a wrench rotating shaft (443), and the cam wrench (441) being rotatably mounted on the wrench rotating shaft (443).

5. The smart watch motherboard test fixture according to claim 1, characterized in that: A first floating spring (450) is provided between the floating plate (420) and the flip plate (410).

6. A smart watch motherboard test fixture according to claim 5, characterized in that: The floating plate (420) is provided with a module installation opening (421) penetrating the floating plate (420), the microneedle module (430) is installed in the module installation opening (421), and a second floating spring (460) is further provided between the microneedle module (430) and the floating plate (420).

7. A smart watch motherboard test fixture according to any one of claims 1-6, characterized in that: A clip (470) is provided on one end of the flip plate (410) away from the flip seat (3), and a clip groove (210) is provided on the loading platform (2). When the upper mold assembly (4) is buckled onto the loading platform (2), the clip (470) cooperates with the clip groove (210) to lock the upper mold assembly (4) and the loading platform (2) in a relatively fixed state.

8. A smart watch motherboard test fixture according to claim 7, characterized in that: The flip seat (3) comprises a flip shaft (310), and the flip plate (410) is rotatably connected to the flip shaft (310); a torsion spring (320) is also provided on the flip shaft (310) for causing the upper mold assembly (4) to tend to be in an open state.

9. A smart watch motherboard test fixture according to claim 7, characterized in that: When the squeezing component (440) squeezes the microneedle module (430), the limiting protrusion (444) of the squeezing component (440) falls into the movable opening (471) of the operating end of the clip (470), so that the clip (470) cannot be unlocked.

10. The smart watch motherboard test fixture according to claim 1, characterized in that: The carrier plate (1) is provided with a first positioning member (110), the loading platform (2) is provided with a positioning groove (220) matching with the first positioning member (110), and the loading platform (2) is detachably mounted on the carrier plate (1); a second positioning member (480) is also provided below the upper mold assembly (4), and when the upper mold assembly (4) is buckled onto the loading platform (2), the second positioning member (480) is located in the positioning groove (220).

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