PCB board function testing device

Abstract

The utility model relates to PCB board test technical field, concretely relates to a kind of PCB board function test device, including bottom plate, still including test mechanism, test mechanism is located above bottom plate, test mechanism includes feeding structure, test structure, feeding structure includes the carousel rotation setting in bottom plate upper end, three moving grooves are set in carousel, moving groove inside is equipped with top plate, circuit board is placed in top plate upper side, and top plate is equipped with the clamping structure for clamping fixed circuit board in the side away from carousel center. Advantageous effect: through clamping structure clamping fixed circuit board, then using test structure to test the function of circuit board, after testing, drive carousel clockwise rotation, make circuit board rotate to carousel's unloading position, and then drive top plate to move upwards and lift circuit board upwards, make circuit board upper end higher than moving groove top end, and then facilitate to take circuit board, avoid to cause damage to circuit board, reduce the time of taking, improve the efficiency of test.

Description

Technical Field

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

[0002] With the development of science and technology, people have increasingly higher requirements for the design of electronic products, and correspondingly, higher requirements for PCB boards. In the PCB manufacturing process, after SMT assembly and DIP insertion, the PCB needs to be tested. This primarily involves testing the electrical conductivity of the PCB through test points. The working principle is to connect metal probes to pads or test points on the PCB. When power is applied to the PCB, the voltage, current, and other electrical parameters of the test circuit are measured. These parameters can then be used to determine whether the tested circuit is conducting normally. Therefore, a testing device needs to be designed to meet these testing requirements.

[0003] By comparing a circuit board testing platform for electronic information engineering with patent publication number CN222561730U, this solution features four clamping stations that can be switched, allowing for simultaneous clamping and testing of circuit boards, significantly improving testing efficiency. The right-side clamping station is far from the probe, fundamentally solving the problem of probe slippage causing hand injuries and improving safety. However, after testing, the circuit board needs to be removed from the station. Due to its thinness, the circuit board is recessed into the station, making it difficult for workers to insert their hands. This makes removing the tested circuit board difficult and increases removal time, reducing testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a PCB board functional testing device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A PCB board functional testing device includes a base plate and a testing mechanism for testing the PCB board functions, the testing mechanism being located above the base plate;

[0007] The testing facility includes a loading structure for loading PCBs and a testing structure for testing the functionality of PCBs.

[0008] The feeding structure includes a turntable rotatably mounted on the upper part of the base plate. A rotary motor is installed on the rotating end of the turntable, and the output end of the rotary motor is fixed to the rotating end of the turntable through a coupling. Three moving slots are opened on the turntable, and the three moving slots are distributed around the center of the turntable. The moving slot closer to the test structure is the test position, and the other two moving slots are the unloading position and the loading position in a clockwise direction. A top plate is provided inside the moving slot, and a circuit board is placed on the top plate. A clamping structure for clamping and fixing the circuit board is provided on the side of the top plate away from the center of the turntable.

[0009] Preferably, the clamping structure includes a groove on the top plate away from the center of the turntable, a clamping plate is slidably installed inside the groove, a clamping spring is connected between the clamping plate and the moving groove, an arc-shaped plate is fixed at the bottom of the clamping plate, a limit plate is installed at the test position above the bottom plate near the turntable, the end of the limit plate near the arc plate is flat, the arc plate and the limit plate slide together, and a feeding structure is provided at the feeding position of the turntable to facilitate the feeding of circuit boards.

[0010] Preferably, the feeding structure includes a fixed plate fixedly installed at the bottom of the top plate, the top plate is slidably connected to the moving groove, a feeding spring is connected between the bottom of the top plate and the moving groove, and a protruding plate is installed at the feeding position near the turntable above the bottom plate. The protruding plate and the fixed plate are both arc-shaped at their closest points and slide together.

[0011] Preferred: The test structure includes a lifting frame set above the base plate near the test position of the turntable. The lifting frame is fixedly connected to the base plate. A lifting groove is opened on the side of the lifting frame near the turntable. A vertical lead screw is rotatably installed in the lifting groove. A lifting plate is slidably installed inside the lifting groove. The lifting plate is threadedly connected to the lead screw. A lifting motor is installed at the rotating end of the lead screw. The output end of the lifting motor is fixed to the rotating end of the lead screw through a coupling. A test plate is installed at the bottom of the lifting plate near the test position of the turntable.

[0012] Preferably, the clamping plate is made of rubber.

[0013] Preferred option: The top plate is made of silicone.

[0014] Preferred features: The limiting plate is detachable, and the protruding plate is detachable.

[0015] Compared with existing technologies, the beneficial effects are as follows:

[0016] The circuit board is clamped and fixed by a clamping structure, and then the circuit board is functionally tested by a testing structure. After the test is completed, the drive turntable rotates clockwise, causing the circuit board to rotate to the unloading position of the turntable. This drives the top plate to move upward and lift the circuit board upward, so that the upper part of the circuit board is higher than the top of the moving slot. This makes it easier to pick up the circuit board, avoids damage to the circuit board, reduces the picking time, and improves the efficiency of testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a spatial perspective view of the PCB board functional testing device described in this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the moving slot of the PCB board functional testing device described in this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the bottom of the turntable of the PCB board functional testing device described in this utility model;

[0022] Figure 5 This is a schematic diagram of the top of the turntable of the PCB board functional testing device described in this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 100. Base plate; 201. Turntable; 202. Rotary motor; 203. Moving groove; 204. Top plate; 205. Circuit board; 206. Clamping plate; 207. Arc plate; 208. Limiting plate; 209. Slide groove; 210. Fixing plate; 211. Protruding plate; 212. Lifting frame; 213. Lead screw; 214. Lifting motor; 215. Lifting plate; 216. Test plate; 217. Lifting groove. Detailed Implementation

[0025] 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.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-5As shown, a PCB board functional testing device includes a base plate 100 and a testing mechanism for testing the PCB board functions, the testing mechanism being located above the base plate 100.

[0028] In this embodiment, the testing mechanism includes a loading structure for loading PCB boards and a testing structure for functional testing of the PCB boards.

[0029] The feeding structure includes a turntable 201 rotatably mounted on the upper end of the base plate 100. A rotary motor 202 is installed on the rotating end of the turntable 201. The output end of the rotary motor 202 is fixed to the rotating end of the turntable 201 through a coupling. Three moving slots 203 are provided on the turntable 201. The three moving slots 203 are distributed around the center of the turntable 201. The moving slot 203 closer to the test structure is the test position. The other two moving slots 203 are the unloading position and the loading position in a clockwise direction. A top plate 204 is provided inside the moving slot 203. The top plate 204 is made of silicone. A circuit board 205 is placed on the top plate 204. A clamping structure for clamping and fixing the circuit board 205 is provided on the side of the top plate 204 away from the center of the turntable 201.

[0030] The clamping structure includes a groove 209 formed at the end of the top plate 204 away from the center of the turntable 201. A clamping plate 206 is slidably installed inside the groove 209. The clamping plate 206 is made of rubber. A clamping spring is connected between the clamping plate 206 and the moving groove 203. An arc-shaped plate 207 is fixed at the bottom end of the clamping plate 206. A limiting plate 208 is installed at the test position above the bottom plate 100 near the turntable 201. The limiting plate 208 is detachable. The end of the limiting plate 208 near the arc-shaped plate 207 is flat. The arc-shaped plate 207 and the limiting plate 208 slide together. The unloading position of the turntable 201 is provided with a unloading structure to facilitate unloading the circuit board 205.

[0031] The feeding structure includes a fixed plate 210 fixedly installed at the bottom of the top plate 204. The top plate 204 is slidably connected to the moving groove 203. A feeding spring is connected between the bottom of the top plate 204 and the moving groove 203. A protruding plate 211 is installed at the feeding position above the bottom plate 100 near the turntable 201. The protruding plate 211 is detachable. The protruding plate 211 and the fixed plate 210 are both arc-shaped at one end and slide together.

[0032] The test structure includes a lifting frame 212 positioned above the base plate 100 near the test position on the turntable 201. The lifting frame 212 is fixedly connected to the base plate 100. A lifting groove 217 is provided on the side of the lifting frame 212 near the turntable 201. A vertical lead screw 213 is rotatably installed in the lifting groove 217. A lifting plate 215 is slidably installed inside the lifting groove 217. The lifting plate 215 is threadedly connected to the lead screw 213. A lifting motor 214 is installed at the rotating end of the lead screw 213. The output end of the lifting motor 214 is fixed to the rotating end of the lead screw 213 via a coupling. The lifting plate 215... A test board 216 is installed at the test position near the turntable 201 at the bottom. The circuit board 205 is clamped and fixed by the clamping structure. The circuit board 205 is then functionally tested using the test structure. After the test is completed, the turntable 201 is driven to rotate clockwise, so that the circuit board 205 rotates to the unloading position of the turntable 201. This drives the top plate 204 to move upward and lift the circuit board 205 upward, so that the upper end of the circuit board 205 is higher than the top of the moving groove 203. This makes it easier to pick up the circuit board 205, avoids damage to the circuit board 205, reduces the picking time, and improves the efficiency of the test.

[0033] Working principle: First, place the circuit board 205 to be tested above the top plate 204 at the loading position of the turntable 201. Start the rotary motor 202 to drive the turntable 201 to rotate clockwise, so that the circuit board 205 rotates to the testing position of the turntable 201. When the turntable 201 drives the top plate 204 to rotate, the top plate 204 drives the clamping plate 206 to rotate. Then, the arc plate 207 at the bottom of the clamping plate 206 will slide and cooperate with the top of the limiting plate 208, so that the limiting plate 208 presses the arc plate 207 near the center of the turntable 201, thereby driving the clamping plate 206 to move and clamp and fix the circuit board 205.

[0034] Then, the lifting motor 214 is started, driving the lead screw 213 to rotate, which in turn moves the lifting plate 215 downward and the test plate 216 downward. The test plate 216 is moved to the top of the circuit board 205 to perform functional testing on the circuit board 205. After the test is completed, the test plate 216 moves upward and resets. The rotary motor 202 continues to drive the turntable 201 to rotate clockwise, rotating the tested circuit board 205 to the unloading position of the turntable 201. When the turntable 201 drives the top plate 204 to rotate, the fixing plate 210 at the bottom of the top plate 204 will press against the protruding plate 211. The protruding plate 211 will cause the fixing plate 210 to drive the top plate 204 to move upward, thereby lifting the circuit board 205 upward, so that the upper end of the circuit board 205 is higher than the top of the moving groove 203. This makes it easier to pick up the circuit board 205, avoids damage to the circuit board 205, reduces the picking time, and improves the testing efficiency.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A PCB board functional testing device, comprising a base plate (100), characterized in that: It also includes a testing mechanism for functional testing of the PCB board, the testing mechanism being located above the base plate (100); The testing mechanism includes a loading structure for loading PCB boards and a testing structure for testing the functionality of PCB boards. The feeding structure includes a turntable (201) rotatably mounted on the upper end of the base plate (100). A rotary motor (202) is installed on the rotating end of the turntable (201). The output end of the rotary motor (202) is fixed to the rotating end of the turntable (201) through a coupling. Three moving slots (203) are provided on the turntable (201). The three moving slots (203) are distributed around the center of the turntable (201). The moving slot (203) closer to the test structure is the test position. The other two moving slots (203) are the unloading position and the loading position in a clockwise direction. A top plate (204) is provided inside the moving slot (203). A circuit board (205) is placed on the top plate (204). A clamping structure for clamping and fixing the circuit board (205) is provided on the side of the top plate (204) away from the center of the turntable (201).

2. The PCB board functional testing device according to claim 1, characterized in that: The clamping structure includes a groove (209) formed at one end of the top plate (204) away from the center of the turntable (201). A clamping plate (206) is slidably installed inside the groove (209). A clamping spring is connected between the clamping plate (206) and the moving groove (203). An arc-shaped plate (207) is fixed at the bottom end of the clamping plate (206). A limiting plate (208) is installed at the test position above the bottom plate (100) near the turntable (201). The end of the limiting plate (208) near the arc-shaped plate (207) is flat. The arc-shaped plate (207) and the limiting plate (208) slide together. A feeding structure is provided at the feeding position of the turntable (201) to facilitate feeding of the circuit board (205).

3. The PCB board functional testing device according to claim 2, characterized in that: The feeding structure includes a fixed plate (210) fixedly installed at the bottom end of the top plate (204). The top plate (204) is slidably connected to the moving groove (203). A feeding spring is connected between the bottom end of the top plate (204) and the moving groove (203). A protruding plate (211) is installed on the bottom plate (100) near the feeding position of the turntable (201). The protruding plate (211) and the fixed plate (210) are both arc-shaped at one end and slide together.

4. The PCB board functional testing device according to claim 3, characterized in that: The test structure includes a lifting frame (212) located above the base plate (100) near the test position of the turntable (201). The lifting frame (212) is fixedly connected to the base plate (100). A lifting groove (217) is provided on the side of the lifting frame (212) near the turntable (201). A vertical lead screw (213) is rotatably installed in the lifting groove (217). A lifting plate (215) is slidably installed inside the lifting groove (217). The lifting plate (215) is threadedly connected to the lead screw (213). A lifting motor (214) is installed at the rotating end of the lead screw (213). The output end of the lifting motor (214) is fixed to the rotating end of the lead screw (213) through a coupling. A test plate (216) is installed at the bottom end of the lifting plate (215) near the test position of the turntable (201).

5. The PCB board functional testing device according to claim 4, characterized in that: The clamping plate (206) is made of rubber.

6. The PCB board functional testing device according to claim 5, characterized in that: The top plate (204) is made of silicone.

7. A PCB board functional testing device according to claim 6, characterized in that: The limiting plate (208) is detachable, and the protruding plate (211) is detachable.

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