A circuit board inspection apparatus

Abstract

The utility model belongs to the technical field of detection equipment provides a kind of circuit board detection device, and a plurality of indicator lights are provided on circuit board and the contact for controlling the on and off of indicator light circuit, and circuit board detection device includes: body, connector is provided on body, and connector is used to connect circuit board with power supply;Positioning seat is fixedly arranged on body, and the top side wall of positioning seat is provided with the positioning assembly for positioning circuit board;Pressing plate is arranged above positioning seat, and pressing plate is slidably connected with body, and pressing plate is correspondingly provided with the pressing assembly for pressing contact on it, and the pressing assembly includes pressing arm, and the first end of pressing arm is connected with pressing plate, and second end extends downward;And drive device is arranged on body, and drive device is drivingly connected with pressing plate.The utility model provides circuit board detection device, and structure is simple, and detection efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically to a circuit board testing device. Background Technology

[0002] A push-button air conditioner control panel includes a housing, a circuit board mounted on the housing, and buttons. The circuit board has indicator lights and contacts (i.e., switches). When a button is pressed, it presses the contact, thus connecting the circuit to the indicator light and turning it on. Before assembling the circuit board, the circuitry of the indicator lights or the indicator lights themselves needs to be tested for functionality. Currently, this is usually done by manually pressing the contacts after connecting the circuit board to a power source. This method is not only inefficient but also prone to missing components due to the large number of circuit boards. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a circuit board testing device to solve the above-mentioned technical problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides a circuit board testing device. The circuit board has multiple indicator lights and contacts for controlling the on / off state of the indicator light circuits. The circuit board testing device includes:

[0005] The body has a connector for connecting the circuit board to a power source.

[0006] A positioning seat is fixedly mounted on the machine body, and a positioning component for positioning the circuit board is provided on the top side wall of the positioning seat.

[0007] A pressure plate, disposed above the positioning seat, is slidably connected to the machine body so that it can only move vertically. A pressing assembly for pressing the contact point is correspondingly provided on the pressure plate. The pressing assembly includes a pressing arm, a first end of which is connected to the pressure plate, and a second end extending downwards.

[0008] A drive device is mounted on the machine body and is connected to the pressure plate to drive the pressure plate to move up and down.

[0009] Furthermore, the positioning component includes a plurality of first positioning posts adapted to the through holes on the circuit board.

[0010] Furthermore, the positioning component also includes a plurality of second positioning posts that cooperate with the sidewalls of the circuit board. The plurality of second positioning posts enclose a positioning area adapted to the circuit board, and the length of the second positioning posts is greater than the length of the first positioning posts.

[0011] Furthermore, the driving device includes a cylinder, and the power output shaft of the cylinder is connected to the pressure plate in a transmission manner.

[0012] Furthermore, the drive device also includes a lifting seat, which is slidably connected to the machine body so that the lifting seat can only move vertically.

[0013] The power output shaft of the cylinder is connected to the lifting seat, and the lifting seat is detachably connected to the pressure plate.

[0014] Furthermore, the pressing arm is slidably connected to the pressure plate so that the pressing arm can move up and down longitudinally. An elastic element is sleeved on the pressing arm, and the two ends of the elastic element are respectively connected to the pressing arm and the pressure plate. In its natural state, the elastic element applies a spring force to the pressing arm so that the pressing arm has a downward tendency.

[0015] Furthermore, the elastic element is a spring.

[0016] Furthermore, a limit post is provided at the bottom of the pressure plate and / or the top of the positioning seat.

[0017] Furthermore, multiple limiting posts are provided.

[0018] Furthermore, an adjusting nut is provided at the bottom end of the pressing arm, the adjusting nut is threadedly connected to the pressing arm, and both ends of the elastic element are respectively connected to the adjusting nut and the pressure plate.

[0019] The beneficial effects of this utility model are:

[0020] The circuit board testing device provided by this utility model, by setting a positioning seat, a pressure plate and a driving device, places the circuit board on the target position on the positioning seat during operation, and drives the pressure plate to move downward by the driving device, so that the pressing arm on the pressure plate can press all the contacts on the circuit board at the same time, thereby achieving the purpose of simultaneously testing all indicator lights, with high efficiency. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 A perspective view of the circuit board testing device provided in Embodiment 1 of this utility model;

[0023] Figure 2 for Figure 1 An enlarged view of part A is shown below;

[0024] Figure 3 for Figure 1 Another structural view of the pressing assembly of the circuit board testing device provided is shown.

[0025] Figure label:

[0026] 100. Body; 110. Guide rod; 200. Positioning seat; 210. First positioning post; 220. Second positioning post; 300. Pressure plate; 310. Pressing arm; 320. Spring; 330. Adjusting nut; 340. Flexible pad; 350. Limiting post; 410. Cylinder; 420. Lifting seat; 421. Sliding sleeve; 510. Clamping nut; 610. Indicator light; 620. Contact point; 630. Through hole. Detailed Implementation

[0027] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] like Figure 1-3 As shown, this utility model provides a circuit board testing device, on which multiple indicator lights 610 are provided and contacts 620 (i.e., switches) for controlling the circuit connection and disconnection of the indicator lights 610 are provided.

[0034] The circuit board testing device includes a body 100, a positioning seat 200, a pressure plate 300, a pressing component, and a driving device.

[0035] The body 100 is equipped with a connector (not shown in the attached diagram), which is used to connect the circuit board to the power supply, thereby providing power to the circuit board.

[0036] The positioning base 200 is fixedly mounted on the machine body 100. A positioning component for positioning the circuit board is provided on the top side wall of the positioning base 200. Specifically, the positioning component includes multiple first positioning posts 210 that are adapted to the through holes 630 on the circuit board. During operation, the circuit board is placed in a preset position on the positioning base 200, so that the first positioning posts 210 are inserted into the corresponding through holes 630 on the circuit board. The cooperation between the first positioning posts 210 and the through holes 630 on the circuit board achieves the purpose of positioning the circuit board.

[0037] Preferably, the positioning component further includes a plurality of second positioning posts 220 that mate with the sidewalls of the circuit board. The plurality of second positioning posts 220 enclose a positioning area adapted to the circuit board, and the length of the second positioning posts 220 is greater than the length of the first positioning posts 210. During operation, the circuit board is placed in a preset position on the positioning seat 200, causing the first positioning posts 210 to insert into the corresponding through holes 630 on the circuit board, and the sidewalls of the circuit board to abut against the sidewalls of the second positioning seat 200. The cooperation between the second positioning seat 200 and the sidewalls of the circuit board improves the stability and reliability of the circuit board positioning. Simultaneously, the second positioning posts 220 enclose a positioning area; as long as the circuit board is placed within this positioning area, the first positioning posts 210 correspond to the through holes 630 on the circuit board, thus enabling the circuit board to be quickly and accurately placed in the preset position on the positioning seat 200.

[0038] Preferably, the positioning seat 200 is detachably connected to the body 100 so that the corresponding positioning seat 200 can be replaced according to the shape of the circuit board to be tested, thereby improving the versatility of the entire device.

[0039] A pressure plate 300 is positioned above the positioning seat 200 and is slidably connected to the machine body 100, allowing the pressure plate 300 to move vertically only. A pressing assembly for pressing the contact 620 is correspondingly provided on the pressure plate 300. The pressing assembly includes a pressing arm 310, with one end connected to the pressure plate 300 and the second end extending downwards. A drive device is mounted on the machine body 100 and is drively connected to the pressure plate 300 to drive its vertical movement. During operation, the drive device drives the pressure plate 300 downwards, thereby driving the pressing arm 310 downwards to press the contact 620. Then, the drive device drives the pressure plate 300 upwards, thereby driving the pressing arm 310 upwards to complete the pressing operation and detection.

[0040] Specifically, during testing, firstly, the circuit board to be tested is placed at the target position on the positioning seat 200 and the connector is connected to the circuit board. Then, the driving device drives the pressure plate 300 to move downward, thereby driving the pressing arm 310 to move downward. The pressing arm 310 presses the contact 620, thereby connecting the circuit of the corresponding indicator light 610. If the indicator light 610 lights up, it indicates that the circuit of the target indicator light 610 and the indicator light 610 itself are not damaged; otherwise, it indicates that the circuit of the target indicator light 610 and / or the indicator light 610 itself are damaged. Afterward, the driving device drives the pressure plate 300 to rise, and the pressure plate 300, along with the pressing arm 310, rises to complete the pressing operation. At the same time, the pressure plate 300 and the pressing arm 310 are moved to a preset position above the positioning seat 200 to facilitate the removal and placement of the circuit board. Then, the tested circuit board is removed. By repeating the above steps, the purpose of continuously testing different circuit boards can be achieved. The operation is simple, and it can simultaneously press the contact 620 corresponding to each indicator light 610, resulting in high testing efficiency.

[0041] like Figure 1 As shown, in this embodiment, the driving device includes a cylinder 410, and the power output shaft of the cylinder 410 is connected to the pressure plate 300. During operation, the extension or retraction of the power output shaft of the cylinder 410 drives the pressure plate 300 to rise or fall.

[0042] Of course, in other embodiments, the driving device may include one of a hydraulic cylinder, an electric actuator, or an electro-hydraulic actuator, and may also include a lead screw and nut structure and a motor for driving the lead screw of the lead screw and nut structure to rotate. Further details will not be elaborated here.

[0043] like Figure 1 As shown, in this embodiment, the driving device further includes a lifting seat 420, which is slidably connected to the body 100 so that the lifting seat 420 can only move vertically. Specifically, the lifting seat 420 and the body 100 are respectively provided with a sliding sleeve 421 and a guide rod 110 that cooperate with each other. During operation, the sliding sleeve 421 and the guide rod 110 cooperate to guide the movement direction of the lifting seat 420.

[0044] The power output shaft of cylinder 410 is connected to lifting seat 420. Lifting seat 420 is detachably connected to pressure plate 300 to facilitate the disassembly and replacement of pressure plate 300. At the same time, the pressure plate 300 can be replaced according to the circuit board to be tested, thereby improving the versatility of the entire device.

[0045] Specifically, the pressure plate 300 is connected to the lifting seat 420 via a connecting assembly. The connecting assembly includes connecting bolts and clamping nuts 510. There are three connecting bolts. The first end of the connecting bolt is fixedly connected to the pressure plate 300. The lifting seat 420 has corresponding connecting holes. The free end of the connecting bolt passes through the connecting hole and is connected to the clamping nut 510.

[0046] like Figure 2 and Figure 3 As shown, in this embodiment, a flexible pad 340 is fixedly sleeved at the bottom end of the pressing arm 310, so that the pressing arm 310 can press the contact point 620 in a flexible contact manner, thereby avoiding damage to the contact point 620. Specifically, the flexible pad 340 is made of silicone, rubber, etc.

[0047] like Figure 2 and Figure 3 As shown, in this embodiment, the pressing arm 310 is slidably connected to the pressure plate 300, allowing the pressing arm 310 to move vertically. An elastic element is sleeved on the pressing arm 310, with both ends connected to the pressing arm 310 and the pressure plate 300 respectively. In its natural state, the elastic element applies a spring force to the pressing arm 310, causing it to tend to move downwards. During the pressing of the contact 620 by the pressing arm 310, the pressing arm 310 can overcome the spring force of the elastic element and move under the reaction force of the circuit board, thereby preventing damage to the contact 620 due to excessive pressure.

[0048] Specifically, the elastic element can be a spring 320, a rubber spring 320, etc. In this embodiment, the elastic element is a spring 320.

[0049] like Figure 2 As shown, in this embodiment, a limiting post 350 is provided at the bottom of the pressure plate 300 and / or the top of the positioning seat 200. In this embodiment, the limiting post 350 is fixedly disposed at the bottom of the pressure plate. When pressed, the free end of the limiting post 350 cooperates with the pressure plate 300, the positioning seat 200, or the circuit board, so that when the pressure plate 300 moves to the point where the free end of the limiting post 350 contacts the pressure plate 300, the positioning seat 200, or the circuit board, the pressure plate 300 cannot continue to move downward, thereby limiting the downward stroke of the pressure plate 300, and further limiting the pressure applied by the pressing arm 310 to the contact point 620, so as to further prevent damage to the contact point 620 due to excessive pressure.

[0050] Preferably, multiple limit posts 350 are provided to improve the stability and reliability of limiting the downward stroke of the pressure plate 300.

[0051] like Figure 3As shown, an adjusting nut 330 is provided at the bottom end of the pressing arm 310, and the adjusting nut 330 is threadedly connected to the pressing arm 310. Both ends of the elastic element are connected to the adjusting nut 330 and the pressure plate 300, respectively. During operation, the position of the adjusting nut 330 on the pressing arm 310 can be changed by rotating it, thereby adjusting the initial elastic force of the elastic element. This ensures that when pressing, the pressure applied to the contact point 620 by all pressing arms 310 remains within a preset range, thus preventing damage to some contacts 620 due to uneven pressure applied by each pressing arm 310 to the corresponding contact point 620.

[0052] Preferably, at least two adjusting nuts 330 are provided. During operation, by tightening the two adjusting nuts 330, an axial force is generated between the two adjusting nuts 330. Under the action of this axial force, the friction between the nut teeth of the adjusting nuts 330 and the bolt teeth of the pressing arm 310 is increased, thereby improving the stability and reliability of maintaining the position of the adjusting nuts 330.

[0053] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A circuit board testing device, wherein the circuit board is provided with a plurality of indicator lights and contacts for controlling the connection and disconnection of the indicator light circuits, characterized in that, The circuit board testing device includes: The body has a connector for connecting the circuit board to a power source. A positioning seat is fixedly mounted on the machine body, and a positioning component for positioning the circuit board is provided on the top side wall of the positioning seat. A pressure plate, disposed above the positioning seat, is slidably connected to the machine body so that it can only move vertically. A pressing assembly for pressing the contact point is correspondingly provided on the pressure plate. The pressing assembly includes a pressing arm, a first end of which is connected to the pressure plate, and a second end extending downwards. A drive device is mounted on the machine body and is connected to the pressure plate to drive the pressure plate to move up and down.

2. The circuit board testing device according to claim 1, characterized in that, The positioning component includes a plurality of first positioning posts adapted to through holes on the circuit board.

3. The circuit board testing device according to claim 2, characterized in that, The positioning component also includes a plurality of second positioning posts that cooperate with the sidewalls of the circuit board. The plurality of second positioning posts enclose a positioning area adapted to the circuit board, and the length of the second positioning posts is greater than the length of the first positioning posts.

4. The circuit board testing device according to any one of claims 1-3, characterized in that, The driving device includes a cylinder, and the power output shaft of the cylinder is connected to the pressure plate in a transmission manner.

5. The circuit board testing device according to claim 4, characterized in that, The drive device also includes a lifting seat, which is slidably connected to the machine body so that the lifting seat can only move up and down in the longitudinal direction. The power output shaft of the cylinder is connected to the lifting seat, and the lifting seat is detachably connected to the pressure plate.

6. The circuit board testing device according to claim 1, 2, 3 or 5, characterized in that, The pressing arm is slidably connected to the pressure plate so that the pressing arm can move up and down in the longitudinal direction. An elastic element is sleeved on the pressing arm. The two ends of the elastic element are respectively connected to the pressing arm and the pressure plate. In its natural state, the elastic element applies a spring force to the pressing arm so that the pressing arm has a downward tendency.

7. The circuit board testing device according to claim 6, characterized in that, The elastic element is a spring.

8. The circuit board testing device according to claim 1, 2, 3, 5 or 7, characterized in that, Limiting posts are provided at the bottom of the pressure plate and / or the top of the positioning seat.

9. The circuit board testing device according to claim 8, characterized in that, The limiting posts are provided in multiple ways.

10. The circuit board testing device according to claim 6, characterized in that, An adjusting nut is provided at the bottom end of the pressing arm, and the adjusting nut is threadedly connected to the pressing arm. The two ends of the elastic element are respectively connected to the adjusting nut and the pressure plate.

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