Circuit board key testing device

Abstract

The utility model relates to the technical field of flexible circuit boards, and discloses a circuit board key testing device. The circuit board key testing device comprises a frame; the carrier plate assembly comprises a carrier plate and a circuit board fixing piece; the carrier plate is arranged on the frame, the circuit board fixing piece is arranged on the carrier plate, and a placing groove for placing and fixing a circuit board to be tested is formed in the circuit board fixing piece; and the top board assembly comprises a top board, a pressing positioning piece and a key testing assembly. According to the circuit board key testing device provided by the utility model, the sky board assembly and the support board assembly are combined to realize the testing of the circuit board, so that the electrical testing and the key testing of the circuit board can be completed at one time; during specific testing, whether various functions and performances of the circuit board to be tested normally reach the standard or not can be mutually verified through electrical testing and key testing, the testing efficiency is high, the testing time is saved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board testing technology, and in particular to a circuit board button testing device. Background Technology

[0002] Flexible printed circuit boards (PCBs) are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. They are characterized by high wiring density, light weight, thinness, and good bendability. The demand for testing flexible PCBs is increasing rapidly, with a wide variety of testing types, including 5G communications, computers, mobile phones, and wearable electronic devices. The number of components integrated on flexible PCBs is also increasing dramatically, such as chips, sensors, and buttons.

[0003] In the production of flexible circuit boards, each board needs to be tested to ensure its quality. Among these tests, button testing involves checking the function and performance of the buttons on the board, including their lifespan and whether the rebound is normal. However, current flexible circuit board button testing devices can only test a single button, and the button needs to be manually replaced after each test. This results in low efficiency, high cost, and significant investment when conducting large-scale testing.

[0004] Therefore, existing circuit board button testing devices are inefficient when performing button testing. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a circuit board button testing device that can solve the problem of low efficiency in button testing of existing circuit board button testing devices.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A circuit board button testing device, comprising:

[0008] frame;

[0009] A carrier board assembly, comprising a carrier board, a circuit board holder, and pins; the carrier board is disposed on the frame, the circuit board holder is disposed on the carrier board, the circuit board holder has a placement slot for placing and fixing the circuit board to be tested, and the pins are disposed on the circuit board holder for electrically connecting the circuit board to be tested to an external circuit; and

[0010] The top plate assembly includes a top plate, a clamping and positioning component, and several button testing components. The top plate is liftably mounted on the frame. The clamping and positioning component is located on the side of the top plate facing the carrier plate assembly and has a first through hole. The several button testing components are mounted on the top plate corresponding to the buttons of the circuit board to be tested. Each button testing component includes at least a retractable test head. When the top plate is raised or lowered close to the carrier plate, the clamping and positioning component presses against the circuit board fixing component to fix the circuit board to be tested. The test head retracts and passes through the first through hole to contact the buttons of the circuit board to be tested placed on the placement slot to perform button performance testing.

[0011] In one feasible embodiment, the frame is provided with a rotatable turntable, the carrier plate is disposed on the turntable, and there are a plurality of carrier plates, each of which is provided with a plurality of circuit board fixing components.

[0012] In one feasible embodiment, a lifting platform is provided on the frame, the top plate is provided on the lifting platform, and a plurality of the clamping and positioning components are provided on the top plate. Each clamping and positioning component is provided with a plurality of the button testing components to correspond to multiple buttons on the circuit board to be tested.

[0013] In one feasible embodiment, the top plate is provided with a second through hole corresponding to the circuit board fixing member, and a plurality of the button testing components are arranged around the second through hole so that the test head passes through the second through hole and then extends into the first through hole of the clamping positioning member.

[0014] In one feasible embodiment, the button testing assembly includes a mounting base, a telescopic drive mechanism, a test head, an encoder, and a pressure sensor; the mounting base is disposed on the top plate, the telescopic drive mechanism is disposed on the mounting base, and the test head is mounted on the moving end of the telescopic drive mechanism; the encoder is mounted on the drive motor of the telescopic drive mechanism and is used to record the position movement information of the test head; the pressure sensor is disposed between the test head and the moving end of the telescopic drive mechanism and is used to record the pressure change information of the test head.

[0015] In one feasible embodiment, a test control box is further included, which is used to receive position movement information and pressure information fed back by the encoder and the pressure sensor, and display them through pressure curves and / or elasticity curves.

[0016] In one feasible embodiment, the button testing assembly further includes a position sensing mechanism, which includes a position structure and a position sensor. The position structure is disposed on the telescopic drive mechanism, and the position structure can be sensed by the position sensor when the telescopic drive mechanism drives the test head to move.

[0017] In one feasible embodiment, the clamping and positioning member is provided with a positioning structure corresponding to the button of the circuit board to be tested. When the circuit board fixing member and the clamping and positioning member are aligned and pressed together, the positioning structure is used to insert into the placement groove and press against the button of the circuit board to be tested.

[0018] In one feasible embodiment, a barcode scanning component is further included, the barcode scanning component including a camera bracket and a camera, the camera bracket being fixed on the frame and the camera being mounted on the camera bracket, the barcode scanning component being used to scan and confirm the circuit board to be tested.

[0019] In one feasible embodiment, a signal switching module is further included, which is used to switch control and / or test signals and / or information.

[0020] By adopting the above technical solution, this utility model has at least the following beneficial effects:

[0021] The circuit board button testing device provided by this utility model achieves circuit board testing by setting up multiple button testing components. Specifically, after fixing the circuit board to be tested by the circuit board fixing component of the carrier board assembly and the clamping and positioning component of the top board assembly, the circuit board to be tested is connected to the external test circuit through pins. Then, the button testing components simulate pressing and releasing the buttons to test the button function and performance of the circuit board to be tested, thereby completing the button test of the circuit board in one go. In the specific test, it can also verify whether the various functions and performance of the circuit board to be tested are normal and meet the standards. The test efficiency is high, the test time is saved, and the labor intensity of workers is reduced. Attached Figure Description

[0022] Figure 1 This is a three-dimensional side view of the circuit board button testing device provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the circuit board button testing device provided in this embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the carrier plate assembly structure provided in this embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of the ceiling panel assembly structure provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a circuit board to be tested provided in an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the frame provided in this embodiment of the utility model;

[0028] Figure 7 This is a three-dimensional structural diagram of the first layer of the frame provided in this embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the main view of the first layer structure of the frame provided in this embodiment of the utility model;

[0030] Figure 9 This is a schematic diagram of the main view of the second layer structure of the frame provided in this embodiment of the utility model;

[0031] Figure 10 This is a schematic diagram of the structure of a button test assembly corresponding to a single clamping and positioning component provided in this embodiment of the utility model;

[0032] Figure 11 This is a schematic diagram of the key testing component provided in this embodiment of the utility model;

[0033] Figure 12 This is another schematic diagram of the circuit board button testing device provided in this embodiment of the utility model;

[0034] Figure 13 This is an exploded structural diagram of the ICT testing component provided in this embodiment of the present invention;

[0035] Figure 14 This is a schematic diagram of the circuit board fixing component provided in an embodiment of the present invention;

[0036] Figure 15 This is a structural schematic diagram of the clamping and positioning component provided in this embodiment of the utility model;

[0037] Figure 16 This is a schematic diagram of the structure of the barcode scanning component provided in this embodiment of the utility model.

[0038] In the attached diagram, 1. Frame; 11. Base plate; 12. Middle plate; 121. First positioning block; 122. Position sensor; 13. Top plate; 14. Column; 15. Turntable; 151. Second positioning block; 16. Rotation drive device; 17. Lifting platform; 171. First support plate; 172. Second support plate; 173. Guide cylinder; 174. Connecting rod; 175. Lifting cylinder; 2. Carrier plate assembly; 21. Carrier plate; 22. Circuit board fixing component; 223. Placement slot; 23. Pin; 24. Clamping block; 25. Rotating shaft; 26. Positioning structure; 3. Top plate assembly; 31. Top plate; 311. 32. Two perforations; 32. Pressing and positioning block; 321. First perforation; 33. Button test assembly; 331. Test head; 332. Mounting base; 333. Telescopic drive mechanism; 3331. Drive motor; 3332. Guide rail; 3333. Slider; 3334. Lead screw; 334. Encoder; 335. Pressure sensor; 336. Position sensing mechanism; 3361. Position structure; 3362. Position sensor; 4. Test control box; 5. Barcode scanning assembly; 51. Camera bracket; 52. Camera; 53. Illumination lamp; 6. Signal conversion module; 100. Circuit board to be tested; 101. Button. Detailed Implementation

[0039] The technical solution of this utility model patent will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] See Figures 1-5 ,in Figure 1 This is a three-dimensional side view of the circuit board button testing device provided in this embodiment of the utility model. Figure 2 This is a front view structural diagram of the circuit board button testing device provided in this embodiment of the utility model. Figure 3 This is a schematic diagram of the carrier board assembly structure provided in this embodiment. Figure 4 This is a schematic diagram of the ceiling panel assembly structure provided in this embodiment of the utility model. Figure 5 This is a schematic diagram of the structure of a circuit board to be tested provided in this embodiment of the present invention. The circuit board button testing device provided in this embodiment includes:

[0043] Framework 1;

[0044] The carrier board assembly 2 includes a carrier board 21, a circuit board holder 22, and pins 23. The carrier board 21 is mounted on the frame 1. The circuit board holder 22 is mounted on the carrier board 21 and has a placement slot 223 for placing and fixing a circuit board 100 to be tested. The pins 23 are mounted on the circuit board holder 22 and are used to electrically connect the circuit board 100 to an external circuit.

[0045] The top plate assembly 3 includes a top plate 31, a clamping and positioning member 32, and several button testing components 33. The top plate 31 is vertically and vertically mounted on the frame 1. The clamping and positioning member 32 is located on the side of the top plate 31 facing the carrier plate assembly 2, and the clamping and positioning member 32 is provided with a first through hole 321. Several button testing components 33 are arranged on the top plate 31 corresponding to the buttons of the circuit board 100 to be tested. Each button testing component 33 includes at least a retractable test head 331. When the top plate 31 is raised or lowered close to the carrier plate 21, the clamping and positioning member 32 and the circuit board fixing member 22 press and fix the circuit board 100 to be tested. The test head 331 can retract and pass through the first through hole 321 to contact the buttons of the circuit board 100 to be tested placed on the placement slot 223 to perform button performance testing.

[0046] It is understandable that "circuit board to be tested 100" does not specifically refer to any particular type of circuit board; it mainly includes any integrated circuit board that requires ICT testing and button testing. For example... Figure 5 As shown, this embodiment mainly uses a flexible circuit board as an example for explanation. Generally, the circuit board 100 to be tested is provided with a button 101. This embodiment is based on... Figure 5The example is used for illustration, but it does not explicitly and strictly limit the type and specific structure of the circuit board to be tested. Those skilled in the art can select the specific circuit board object to be tested according to actual needs and make simple modifications and adjustments to the circuit board button testing device of this utility model. It will not be described further here.

[0047] It is understandable that, such as Figure 6 The diagram shows the structural schematic of the frame provided in this embodiment. Frame 1 mainly comprises two layers: the first layer, from bottom to top, is used to house the carrier plate assembly 2, and the second layer is used to house the top plate assembly 3. The main structure of frame 1 mainly includes a bottom plate 11, a middle plate 12, and a top plate 13. The bottom plate 11 and the middle plate 12, and the middle plate 12 and the top plate 13, are connected by columns 14 to form the overall frame 1. In this embodiment, the space between the bottom plate 11 and the middle plate 12 is represented as the first layer, and the space between the middle plate 12 and the top plate 13 is represented as the second layer, for ease of description. It is understood that the main function of frame 1 is to support and house other parts and components. The frame 1 described in this embodiment is only one possible specific implementation. Those skilled in the art can combine the description in this embodiment with different simple deformations of the structure to form the overall frame according to actual needs, which will not be further described here.

[0048] It is understandable that circuit buttons are one of the common components on circuit boards, used to control circuit switching, adjustment and other operations. After the circuit board is manufactured, the circuit buttons may be damaged or malfunction. In order to ensure the normal use of the device, it is necessary to test the buttons on the circuit board to determine whether the buttons control the circuit action normally, and also to test the performance of the buttons, such as whether the buttons can be pressed and rebound normally. For more details, please refer to the existing technology for understanding, which will not be described further here.

[0049] Furthermore, when testing the buttons on the circuit board, in addition to testing the basic physical characteristics of pressing and rebounding, the performance of the buttons can also be tested according to actual needs. This mainly involves testing whether the buttons can function normally in the circuit by pressing and releasing them, such as whether the buttons function as switches or capacitors. Therefore, in this embodiment, the circuit board under test is connected to an external test circuit by setting pin 23, so as to simulate whether the buttons function normally when the circuit board is working normally. The specific external test circuit can be pre-designed by those skilled in the art according to the actual test content, and will not be described in detail here. For example, to test whether the buttons can switch the circuit normally, the external test circuit can be a circuit system including a power supply and a light bulb. Of course, this is only a simple example, and more specific situations will not be elaborated here.

[0050] It is understood that in this embodiment, the circuit board fixing member 22 and the clamping fixing member 32 are equivalent to forming a fixture for clamping and fixing the circuit board to be tested. The specific shape of the placement groove 223 can be adapted and designed in combination with the specific shape of the circuit board to be tested 100, which will not be further described here.

[0051] In this embodiment, as Figure 6 as well as Figure 7 As shown, Figure 7 This is a three-dimensional structural diagram of the first layer of the frame provided in this embodiment. The frame 1 is provided with a rotatable turntable 15, and the carrier plate 21 is provided on the turntable 15. There are a plurality of carrier plates 21, and each carrier plate 21 is provided with a plurality of circuit board fixing parts 22.

[0052] It is understood that in this embodiment, the carrier plate 21 is mounted on the turntable 15, so that the carrier plate 21 can be rotated by the rotation of the turntable 15, thus separating the loading position and the testing position. Specifically, for example... Figure 1 The side facing outwards from the paper is the front side, serving as the loading position, and the rear side is the testing position. Initially, the carrier plate 21 is located at the front side. After placing the circuit board 100 to be tested in the placement slot of the circuit board fixing member 22, the turntable 15 is controlled to rotate, driving the carrier plate 21 to rotate the circuit board 100 to be tested to the rear testing position for testing. This facilitates the separation of the testing position and the loading position, which firstly improves safety. Secondly, in this embodiment, multiple carrier plates 21 are used, and multiple circuit board fixing members 22 are set for each carrier plate 21, which is equivalent to performing multiple tests on the circuit boards 100 to be tested at one time, which can improve work efficiency. Furthermore, when the carrier plate 21 rotated to the testing position is tested sequentially, the carrier plate 21 located at the loading position can perform loading or unloading operations, and the cyclic operation improves work efficiency.

[0053] Specifically, in this embodiment, such as Figure 7As shown, there are two carrier boards 21, corresponding to two workstations. Each time the turntable 15 rotates, it drives one carrier board 21 to rotate into the test position, and the other carrier board 21 is located in the loading position. The carrier board 21 in the test position can perform testing, while the carrier board 21 in the loading position can be used for loading or unloading. It can be understood that the number of carrier boards 21 can be selected according to actual needs, such as three or four. More carrier boards 21 can temporarily store more circuit boards between loading and testing. The specifics will not be described further here. Furthermore, in this embodiment, a carrier plate 21 is provided with two circuit board fixing parts 22, and the corresponding top plate 31 of the two circuit board fixing parts 22 is provided with two clamping and positioning parts 32 for synchronous testing. Similarly, a matching button testing component 33 is provided, so that the circuit board button testing device in this embodiment can test two circuit boards at the same time. In general, the carrier plate 21, circuit board fixing parts 22, clamping and positioning parts 32 and button testing component 33 in this embodiment of the present invention are each provided with at least one, forming an overall device that realizes the basic testing function. However, the specific number of each component can be simply adjusted and implemented according to the workstation designed as needed and the number of tests at one time, which will not be further described here.

[0054] Furthermore, such as Figure 7 As shown, two first positioning blocks 121 are arranged on the left and right sides of the middle plate 12 of the frame 1, and each first positioning block 121 is equipped with a position sensor 122. A second positioning block 151 is also arranged on the turntable 15. When the carrier plate 21 rotates into position with the turntable 15, the first positioning blocks 121 and the second positioning blocks 151 move closer together and are sensed by the position sensor 122 to achieve positioning, ensuring accurate positioning and preventing the carrier plate 21 from rotating excessively and causing accidents, thus ensuring safety. The position sensor 122 can be a conventional infrared positioning sensing device, which will not be further described here. Note that in this embodiment, as... Figure 7The diagram shows two carrier plates 21. The turntable 15 can rotate clockwise and counterclockwise, causing the second positioning block 151 on the turntable 15 to move closer to the two first positioning blocks 121 on the left and right sides respectively. This process switches the carrier plates 21. Further details are not described here. It is understood that although this embodiment uses the first positioning block 121 and the second positioning block 151 respectively on the middle plate 12 and the turntable 15 as an example, those skilled in the art can make simple adjustments according to actual needs to achieve limiting and safety protection. For example, the second positioning block 151 can be placed on the carrier plate 21, or the turntable 15 can be designed to rotate only in one direction, clockwise or counterclockwise. Further details are not described here. Furthermore, this embodiment uses the first and second positioning blocks being on the same plane as an example. However, if multiple carrier plates are used, the first and second positioning blocks can be staggered vertically, so that when the carrier plates rotate in a specific direction, they can be sensed into position sequentially. Further details and possible scenarios are not described here.

[0055] like Figure 8 The diagram shown is a front view of the first layer of the frame structure provided in this embodiment. In this embodiment, the turntable 15 is fixed to the base plate 11 of the frame 1 by a rotation drive device 16. The rotation drive device 16 can be a conventional rotation motor and general auxiliary parts. The rotation setting of the turntable 15 can refer to conventional design and will not be described further here.

[0056] In this embodiment, as Figure 6 and Figure 9 As shown, Figure 9 This is a schematic diagram of the main structure of the second layer of the frame provided in this embodiment. Specifically, the frame 1 is provided with a lifting platform 17, the top plate 31 is provided on the lifting platform 17, the top plate 31 is provided with a plurality of pressing and positioning parts 32, and each pressing and positioning part 32 is provided with a plurality of button test components 33 to correspond to multiple buttons of the circuit board 100 to be tested.

[0057] like Figure 9As shown, in this embodiment, the lifting platform 17 is mounted on the column 14 of the frame 1 via a guide cylinder 173. Specifically, the lifting platform 17 includes a first frame plate 171, a second frame plate 172, a guide cylinder 173, a connecting rod 174, and a lifting cylinder 175. The first frame plate 171 and the second frame plate 172 are fixedly connected by the connecting rod 174. The first frame plate 171 and the second frame plate 172 are mounted between the middle plate 12 and the top plate 13 of the frame 1. The guide cylinder 173 is mounted on the first frame plate 171 and is sleeved on the column 14 to form a lifting guide. The lifting platform 17 is driven by the lifting cylinder 175. One end of the lifting cylinder 175 is fixedly mounted on the middle plate 12 of the frame 1, and the output end is connected to the first frame plate 171. In this embodiment, the lifting platform 17 is mounted on the second frame plate 172. Overall, the lifting platform 17 is driven to move up and down along the column 14 of the frame 1 by the lifting cylinder 175, so that the top plate 31 set on the lifting platform 17 moves up and down, pressing the clamping positioning part 32 and the circuit board fixing part 22 together.

[0058] Furthermore, such as Figure 9 As shown, in this embodiment, the number of clamping and positioning members 32 on the top plate 31 corresponding to the number of circuit board fixing members 22 on a carrier plate 21 is provided. The clamping and positioning members 32 on the top plate 31 can be pressed against the circuit board fixing members 22 on the carrier plate 21 by raising and lowering the top plate 31. It is understood that this embodiment uses two clamping and positioning members 32 as an example, but a larger number can be selected according to actual needs, and will not be further described here.

[0059] Furthermore, such as Figure 10 As shown, Figure 10 This is a schematic diagram of the structure of a button test component corresponding to a single clamping and positioning component in this embodiment. Specifically, after the circuit board fixing component 22 and the clamping and positioning component 32 are pressed together, the circuit board 100 to be tested is internally accommodated. Figure 5 The circuit board 100 under test has several buttons 101. Correspondingly, in this embodiment, several button testing components 33 are provided at each clamping and positioning member 32 to correspond to several buttons 101 of the circuit board 100 under test, so that the buttons 101 of the circuit board 100 under test can be tested at one time. For example, Figure 10 Taking the clamping and positioning component 32 as an example, which corresponds to the setting of three button test components 33, the three button test components 33 correspond to the three buttons 101 to be tested on the circuit board to be tested.

[0060] Understandably, the button positions may differ between different circuit boards. To facilitate the installation and adjustment of the button test component 33, combined with... Figure 4In this embodiment, the top plate 31 is provided with an elongated second through hole 311 corresponding to the circuit board fixing member 22. A plurality of button testing components 33 are arranged around the elongated second through hole 311 so that the test head 331 passes through the second through hole 311 and extends into the first through hole 321 of the clamping positioning member 32. Further, in this embodiment, the first through hole 321 on the clamping positioning member 32 can be one-to-one with the button testing component 33, or it can be an elongated hole similar to the second through hole 311. In this embodiment, in order to ensure that the circuit board fixing member 22 and the clamping positioning member 32 effectively fix the circuit board 100 to be tested after being pressed together, especially the button 101 part, the first through hole 321 is designed as a single round hole. Each test head 331 of each button testing component 33 corresponds to one first through hole 321, reducing the hollow space and avoiding the dispersion of the clamping effect. Other forms of first through holes 321 will not be described in detail here.

[0061] In this embodiment, as Figure 11 As shown, Figure 11 This is a schematic diagram of the button testing component provided in this embodiment. The button testing component 33 includes a mounting base 332, a telescopic drive mechanism 333, a test head 331, an encoder 334, and a pressure sensor 335. The mounting base 332 is disposed on the top plate 31, the telescopic drive mechanism 333 is disposed on the mounting base 332, and the test head 331 is mounted on the moving end of the telescopic drive mechanism 333. The encoder 334 is mounted on the drive motor of the telescopic drive mechanism 333 and is used to record the position movement information of the test head 331. The pressure sensor 335 is disposed between the test head 331 and the moving end of the telescopic drive mechanism 333 and is used to record the pressure change information of the test head 331.

[0062] It is understandable that the telescopic drive mechanism 333 is mainly used to drive the test head 331 to move downwards to press the button and then move upwards to move away from the button, simulating the action of the button being pressed and released. Therefore, the telescopic drive mechanism 333 mainly needs to achieve linear motion. The specific implementation mechanism can be designed by those skilled in the art according to actual needs, such as choosing to set conventional structures such as drive cylinders and telescopic rods. In this embodiment, as... Figure 11As shown in the diagram, a lead screw and slider mechanism is used as the telescopic drive mechanism 333. This mechanism mainly includes a drive motor 3331, a guide rail 3332, a slider 3333, and a lead screw 3334. The drive motor 3331 is mounted at one end of the mounting base 332, and its output shaft is connected to the lead screw 3334. The guide rail 3332 is mounted on the mounting base 332, and the slider 3333 is slidably mounted on the guide rail 3332. The slider 3333 cooperates with the lead screw 3334, and the test head 331 is mounted on the slider 3333. The drive motor 3331 drives the lead screw 3334 to rotate, driving the slider 3333 to move along the guide rail 3332, thereby moving the test head 331. This is one type of telescopic drive mechanism 333 used in this embodiment. Other forms can be designed with simple modifications according to actual needs by those skilled in the art.

[0063] Furthermore, to prevent the button from being damaged by the test head 331, the button testing component 33 in this embodiment also includes a position sensing mechanism 336. The position sensing mechanism 336 includes a position structure 3361 and a position sensor 3362. The position structure 3361 is disposed on the telescopic drive mechanism 333. When the telescopic drive mechanism 333 drives the test head 331 to move, the position structure 3361 can be sensed by the position sensor 3362. Specifically, in this embodiment, the position structure 3361 is disposed on the slider 3333 as an example. The position sensor 3362 can be fixedly disposed on the mounting base 332 or the top plate 31. When the slider 3333 drives the test head 331 to the limit position that the button can withstand, the position structure 3361 is just sensed by the position sensor 3362, and the slider 3333 will be unable to continue to move downward. In general, the position sensing mechanism 336 is mainly to avoid the problem of exceeding the limit. This embodiment is only used as an example to illustrate one embodiment. More over-limit control methods are not described in detail here.

[0064] In one feasible embodiment, such as Figure 12 The diagram shown is a schematic diagram of another state structure of the circuit board button testing device provided in this embodiment. In this embodiment, a test control box 4 is also included. The test control box 4 is used to receive the position movement information and pressure information fed back by the encoder 334 and the pressure sensor 335, and display them through pressure curves and / or elasticity curves.

[0065] It is understood that the test control box 4 may include necessary hardware and software such as control circuits, display screens, and microprocessors. It is mainly used to control the circuit board fixing component 22, the clamping and positioning component 32, the button test component 33 for testing, as well as other actions such as the rotation of the carrier plate 21 and the lifting of the top plate 31. At the same time, it also receives real-time test data during the test process, such as the position movement information and pressure information fed back by the encoder 334 and the pressure sensor 335 in the button test component 33, and displays them through pressure curves and / or elasticity curves. More specific hardware and software functions can be implemented by those skilled in the art based on the above description and the functions to be achieved. If necessary, existing ICT test control boxes or button test control devices can be combined and simply modified for implementation. Further details are not provided here.

[0066] It is understood that in this embodiment, the encoder 334 and the pressure sensor 335 are combined to record the test data of the circuit board button. The encoder 334 reflects the depth of the button pressed by the test head 331 (the amount of deformation of the button part), and the pressure sensor 335 reflects the force of the test head 331 pressing the button, including the pressure applied to the button by the test head 331 during the pressing process and the rebound force applied to the test head 331 by the button during the releasing process. The pressure curve and / or elasticity curve after the button is pressed are obtained by the calculation of the test control box 4, so as to determine whether the button can operate normally.

[0067] like Figures 13-15 As shown, Figure 13 This is an exploded structural diagram of the circuit board fixing component and the clamping and positioning component provided in this embodiment. Figure 14 This is a structural schematic diagram of the circuit board fixing component provided in an embodiment of the present invention. Figure 15 This is a schematic diagram of the clamping and positioning component provided in this embodiment of the utility model. The pin 23 is disposed on the circuit board fixing component 22. The pin 23 is used to connect the circuit board 100 to be tested, placed in the placement slot 223 of the circuit board fixing component 22, to an external test circuit for electrical circuit testing. Figure 13 As shown, it also includes a clamping block 24, which is rotatably mounted on the circuit board fixing member 22 via a rotating shaft 25. The clamping block 24 can clamp the circuit board 100 to be tested by rotating, so that it can effectively contact the pins 23. It also makes it easier for the operator to fix the circuit board to be tested before mounting. The other two types of pin combinations will not be further described and illustrated here. Those skilled in the art can simply adjust and implement them according to the above examples and actual needs.

[0068] In this embodiment, as Figure 13 , Figure 14 , Figure 15As shown, the clamping and positioning member 32 is provided with a positioning structure 26 corresponding to the button 101 of the circuit board 100 to be tested. Specifically, the positioning structure is located around the first through hole 321. When the circuit board fixing member 22 and the clamping and positioning member 32 are aligned and pressed together, the positioning structure 26 is used to insert into the placement groove 223 and press against the button of the circuit board to be tested. It can be understood that by pressing the button of the circuit board to be tested against the button of the circuit board to be tested with the positioning structure 26, it is possible to prevent the button testing component 33 from becoming loose when pressing the button 101, which would affect the test results. In addition, the positioning structure 26 can be adapted to the shape of the button 101, for example, Figure 13 As shown, the positioning structure 26 is a ring-shaped protrusion structure. More feasible solutions will not be described in detail here.

[0069] In addition, it is understood that a vacuum adsorption structure can also be provided in the placement groove 223 of the circuit board fixing component 22 to assist in adsorbing and fixing the circuit board to be tested. Specifically, it includes vacuum adsorption holes and corresponding channels, which can be connected to an external vacuum generating device. Those skilled in the art can implement this in conjunction with existing technology, and it will not be described in further detail here.

[0070] It is understood that the placement slot 223 as the placement position of the circuit board to be tested is only one possible embodiment in this embodiment. In addition, positioning blocks are set around it to form a structure that surrounds and fixes the circuit board to be tested. There are also other simple variations, which will not be described in detail here.

[0071] In this embodiment, as Figure 1 and Figure 16 As shown, Figure 16 The diagram below shows the structure of the barcode scanning component provided in this embodiment. The circuit board button testing device provided in this embodiment also includes a barcode scanning component 5. The barcode scanning component 5 includes a camera bracket 51 and a camera 52. The camera bracket 51 is fixed on the frame 1, and the camera 52 is mounted on the camera bracket 51. The barcode scanning component 5 is used to scan and confirm the circuit board to be tested.

[0072] It is understandable that an identification code can be set on the circuit board to be tested, and the corresponding identification and recording can be achieved by the barcode scanning component 5 to facilitate the management of automated production operations. Furthermore, similar to specific barcodes or labels, as well as the camera 52, can be selected from existing mature components according to actual needs, and will not be described further here. It is also understandable that the barcode scanning component 5 can communicate with the test control box 4 or control terminal devices such as computers, and can also be equipped with a lighting lamp 63 to provide sufficient lighting conditions.

[0073] It is understandable that, such as Figure 4As shown, in addition to the above-described content, this embodiment may also include a signal conversion module 7. The signal conversion module 7 is disposed on the top plate 31. The signal conversion module 7 is used to convert control and test signals and / or information. Specifically, it may convert the signals of the button test component 33 and other components on the top plate 31 to the test control box 4 or the computer. In general, the signal conversion module 7 mainly performs signal conversion to facilitate the control of the device. The specific type of signal conversion module 7 can adopt the mature and conventional signal conversion equipment in the prior art, which will not be further described here.

[0074] Furthermore, when necessary, the circuit board button testing device in this embodiment can be equipped with a safety protection plate or an infrared safety sensing laser on the outside of the frame 1, and can also be equipped with necessary conventional components such as a start button and lights, which will not be described in detail here.

[0075] The working process and principle of the circuit board button testing device in this embodiment of the utility model:

[0076] The circuit board to be tested is placed in the slot 223 of the circuit board fixing piece 22 in the upper part position carrier plate 21. The camera 532 in the barcode scanning assembly 5 is activated to scan the circuit board to be tested in the upper part position circuit board fixing piece 22 for confirmation. After scanning, the upper part position carrier plate 21 is driven to rotate to the test position by the turntable 15. The top plate assembly 3 presses down on the carrier plate assembly 2 to press and fix the circuit board to be tested. After it is in place, the test is started. Depending on the actual needs, the circuit board to be tested can be connected to the external test circuit through the pin 23. The test head 331 of the multiple button test assembly 33 is driven by the telescopic drive mechanism 333 to pass through the first through hole 321 and press down on the button of the circuit board to be tested. The test data is fed back to the test control box 4 or the computer in real time through the pressure sensor 335 and the encoder 334. Specifically, when testing the on and off function of the button in the normal circuit, the control of the button is used to press down on the button. The test head 331 of the key test component 33 presses down to simulate pressing a button. After the test head 331 contacts the button on the circuit board under test, the pressure and position relationship is plotted as a pressure curve to determine the button's functionality. At this time, circuit testing can also be performed simultaneously to test whether the circuit is normally controlled by the corresponding button action. When the test head 331 of the key test component 33 is raised to simulate releasing the button, the pressure sensor 335 and encoder 334 monitor the pressure and position information of the button on the test head 331 in real time during the lifting process, and transmit it back to the test control box 4 or the computer to plot the pressure and position relationship as an elasticity curve. When the key test component 33 is raised to the origin, the circuit electrical function test of the circuit board under test can be performed again through the test control box 4 to verify whether the button is effectively released and to ensure that the button is not damaged. After the test is completed, the top plate 31 is raised. During the test, a new circuit board under test can be placed in the circuit board fixing piece 22 on another carrier plate 21. After the test position is completed, the new circuit board under test can be rotated to the test position by the turntable 15 for testing. The test can be repeated in a cycle.

[0077] Due to the adoption of the above technical solution, the circuit board button testing device of this utility model embodiment has at least the following beneficial effects:

[0078] The circuit board button testing device provided by this utility model achieves circuit board testing by setting up multiple button testing components 33. Specifically, after fixing the circuit board to be tested through the circuit board fixing component 22 of the carrier board component 2 and the clamping and positioning component 32 of the top board component 3, the circuit board to be tested is connected to the external test circuit through the pin 23. Then, the button testing components 33 simulate pressing and releasing the buttons to test the button function and performance of the circuit board to be tested, thereby completing the button test of the circuit board in one go. In the specific test, it can also verify whether the various functions and performance of the circuit board to be tested are normal and up to standard. The test efficiency is high, the test time is saved, and the labor intensity of workers is reduced.

[0079] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A circuit board button testing device, characterized in that, include: frame; A carrier board assembly, the carrier board assembly including a carrier board, a circuit board holder and pins; The carrier board is mounted on the frame, the circuit board holder is mounted on the carrier board, the circuit board holder has a placement slot for placing and fixing the circuit board to be tested, and the pins are mounted on the circuit board holder for electrically connecting the circuit board to be tested to an external circuit; and The top plate assembly includes a top plate, a clamping and positioning component, and several button testing components. The top plate is liftably mounted on the frame. The clamping and positioning component is located on the side of the top plate facing the carrier plate assembly and has a first through hole. The several button testing components are mounted on the top plate corresponding to the buttons of the circuit board to be tested. Each button testing component includes at least a retractable test head. When the top plate is raised or lowered close to the carrier plate, the clamping and positioning component presses against the circuit board fixing component to fix the circuit board to be tested. The test head retracts and passes through the first through hole to contact the buttons of the circuit board to be tested placed on the placement slot to perform button performance testing.

2. The circuit board button testing device according to claim 1, characterized in that, The frame is provided with a rotatable turntable, the carrier plate is provided on the turntable, and there are several carrier plates, each of which is provided with several circuit board fixing parts.

3. The circuit board button testing device according to claim 1, characterized in that, A lifting platform is provided on the frame, and the top plate is provided on the lifting platform. Several clamping and positioning components are provided on the top plate, and several button testing components are provided at each clamping and positioning component to correspond to multiple buttons on the circuit board to be tested.

4. The circuit board button testing device according to claim 1, characterized in that, The top plate is provided with a second through hole corresponding to the circuit board fixing component, and a plurality of the button testing components are arranged around the second through hole so that the test head passes through the second through hole and then extends into the first through hole of the clamping and positioning component.

5. The circuit board button testing device according to claim 1, characterized in that, The button testing assembly includes a mounting base, a telescopic drive mechanism, a test head, an encoder, and a pressure sensor. The mounting base is disposed on the top plate, the telescopic drive mechanism is disposed on the mounting base, and the test head is mounted on the moving end of the telescopic drive mechanism. The encoder is mounted on the drive motor of the telescopic drive mechanism and is used to record the position movement information of the test head. The pressure sensor is disposed between the test head and the moving end of the telescopic drive mechanism and is used to record the pressure change information of the test head.

6. The circuit board button testing device according to claim 5, characterized in that, It also includes a test control box, which is used to receive position movement information and pressure information fed back by the encoder and the pressure sensor, and display them through pressure curves and / or elasticity curves.

7. The circuit board button testing device according to claim 5, characterized in that, The button testing assembly also includes a position sensing mechanism, which includes a position structure and a position sensor. The position structure is disposed on the telescopic drive mechanism, and the position structure can be sensed by the position sensor when the telescopic drive mechanism drives the test head to move.

8. The circuit board button testing device according to claim 1, characterized in that, The clamping and positioning component is provided with a positioning structure corresponding to the button of the circuit board to be tested. When the circuit board fixing component and the clamping and positioning component are aligned and pressed together, the positioning structure is used to insert into the placement groove and press against the button of the circuit board to be tested.

9. The circuit board button testing device according to claim 1, characterized in that, It also includes a barcode scanning component, which includes a camera bracket and a camera. The camera bracket is fixed on the frame, and the camera is mounted on the camera bracket. The barcode scanning component is used to scan and confirm the circuit board to be tested.

10. The circuit board button testing device according to claim 1, characterized in that, It also includes a signal switching module, which is mounted on the antenna panel and is used to switch control and / or test signals and / or information.

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