A PCB circuit board testing device

Abstract

This utility model relates to the field of PCB circuit board manufacturing, and in particular to a PCB circuit board testing device. The device includes a frame, a camera mounted on the top side inside the frame, a conveying assembly on the lower side inside the frame, and a flipping mechanism. Four ring-shaped clamping mechanisms are fixed to the outside of the flipping mechanism, which is located in the middle of the frame. Through the cooperation of a ratchet and a pusher, the rotating frame does not rotate when the test frame moves forward, and flips backward around its support axis when the test frame moves backward, thus switching to another PCB circuit board. When the PCB circuit board is directly under the rotating frame, the tested PCB circuit board can be released and placed onto the conveying assembly for delivery. This eliminates the need for frequent manual removal and placement of the PCB circuit board, thereby improving operational convenience.

Description

Technical Field

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

[0002] A PCB (Printed Circuit Board) is an important electronic component, serving as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. After the PCB circuit board is manufactured, it needs to undergo functional testing. However, existing PCB testing methods generally require placing the PCB on a testing table and then pressing it down with a test fixture to test it. After the test is completed, the tested PCB circuit board needs to be removed and another untested PCB circuit board needs to be placed on it for testing again. The whole process requires frequent placement and removal by robotic arms or manual labor, which is relatively cumbersome. At the same time, the entire testing structure occupies a large volume and cannot quickly and conveniently place the PCB, which affects the testing progress. Utility Model Content

[0003] The purpose of this invention is to provide a PCB circuit board testing device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions: A PCB circuit board testing device includes a frame, a camera is provided on the top side inside the frame, a conveying assembly is provided on the lower side inside the frame, and a flipping mechanism is also included. Four ring-shaped clamping mechanisms are fixed on the outside of the flipping mechanism, and the flipping mechanism is located in the middle of the frame. The flipping mechanism includes a support shaft, a rotating frame rotatably connected to the outside of the support shaft, four ring-shaped placement seats fixed to the outside of the rotating frame, ratchet wheels on both sides of the rotating frame that can only drive it to flip backward, a test frame on the rear side of the rotating frame, a hydraulic rod fixed to the rear side of the test frame, push frames fixed to both sides of the test frame, a limit seat fixed in the middle of the support shaft, a limit ring groove opened on the outside of the limit seat, and a magnetic block fixed inside the limit ring groove; The clamping mechanism includes a pusher frame, a push rod is fixed at one end of the pusher frame near the support shaft, a positioning seat is fixed on the outside of the push rod, a return spring is fixed at the center of the pusher frame, and four ring-shaped connecting rods are fixed on the outside of the positioning seat. Each connecting rod is hinged to a clamping plate at the end away from the positioning seat, and the front end of the clamping plate extends out of the end of the rotating frame.

[0005] Preferably, the lower side of the pusher frame is provided with teeth for engaging with the ratchet, and the front end of the pusher frame extends beyond the end of the rotating frame.

[0006] Preferably, the outer side of the rotating frame has sliding grooves at the four corners of the placement seat, and the outer side of the rotating frame has guide grooves at the position of the clamping plate.

[0007] Preferably, a hemispherical head is fixed at one end of the rotating frame near the support shaft, and round holes are provided at the front and bottom of the limiting ring groove, and the round holes are connected to the limiting ring groove.

[0008] Preferably, the rear end of the pusher frame fixing part is fixedly connected to the rear side inside the frame, and the two ends of the support shaft are fixedly connected to the two ends inside the frame.

[0009] Preferably, both sides of the rotating frame are fixed with support tubes, and the ratchet is fixedly connected to the support tubes.

[0010] Preferably, the conveying assembly includes a conveyor belt, and conveying rollers are provided inside both ends of the conveyor belt. The front and rear ends of the two conveying rollers are rotatably connected to the lower side of the frame, and a drive motor is fixedly installed on the front side of the conveyor belt.

[0011] The advantages compared to existing technologies are as follows: By using the ratchet and pusher, the rotating frame does not rotate when the test frame moves forward, and it flips backward around the support shaft when the test frame moves backward, thus switching to another PCB circuit board. When the PCB circuit board is directly under the rotating frame, the tested PCB circuit board can be released and placed into the conveyor assembly for delivery. This eliminates the need for frequent manual removal and placement of PCB circuit boards, thereby improving the convenience of operation. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a perspective view of a PCB circuit board testing device according to the present invention; Figure 2 This is a front view of a PCB circuit board testing device according to the present invention; Figure 3 This is a side view of a PCB circuit board testing device according to the present invention; Figure 4 yes Figure 2 Sectional view at point AA; Figure 5 yes Figure 3 Sectional view at point BB; Figure 6 This is a schematic diagram of the flipping mechanism structure of a PCB circuit board testing device according to the present invention; Figure 7 This is a schematic diagram of the rotating frame structure of a PCB circuit board testing device according to the present invention; Figure 8 This is a schematic diagram of the support shaft structure of a PCB circuit board testing device according to the present invention; Figure 9 This is a schematic diagram of the limiting seat structure of the PCB circuit board testing equipment described in this utility model; Figure 10 This is a schematic diagram of the clamping mechanism structure of a PCB circuit board testing device according to the present invention; Figure 11 This is a schematic diagram of the push rod structure of a PCB circuit board testing device according to the present invention.

[0014] The annotations in the attached figures are explained as follows: 1. Tilting mechanism; 2. Clamping mechanism; 3. Frame; 4. Camera; 5. Conveying assembly; 11. Support shaft; 12. Rotating frame; 13. Ratchet; 14. Pushing frame; 15. Placement seat; 16. Test frame; 17. Hydraulic rod; 21. Pushing frame; 22. Push rod; 23. Positioning seat; 24. Return spring; 25. Connecting rod; 26. Clamping plate; 111. Limiting seat; 112. Limiting ring groove; 113. Magnetic block. Detailed Implementation

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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. All electrical components mentioned in this document are electrically connected to an external main controller and 220V AC mains power, and the main controller can be a conventionally known device such as a computer that provides control.

[0016] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-11 As shown, a PCB circuit board testing device includes a frame 3, a camera 4 is provided on the top side inside the frame 3, a conveying assembly 5 is provided on the lower side inside the frame 3, and a flipping mechanism 1 is also included. Four ring-shaped clamping mechanisms 2 are fixed on the outside of the flipping mechanism 1, and the flipping mechanism 1 is located in the middle of the frame 3.

[0017] In this embodiment: the flipping mechanism 1 includes a support shaft 11, a rotating frame 12 is rotatably connected to the outside of the support shaft 11, four ring-shaped placement seats 15 are fixed to the outside of the rotating frame 12, ratchet wheels 13 are provided on both sides of the rotating frame 12 that can only drive it to flip backward, a test frame 16 is provided on the rear side of the rotating frame 12, a hydraulic rod 17 is fixedly provided on the rear side of the test frame 16, pusher frames 14 are fixed on both sides of the test frame 16, a limit seat 111 is fixed in the middle of the support shaft 11, and a limit ring groove 112 is formed on the outer side of the limit seat 111. A magnetic block 113 is fixed inside the rotating frame 12. A hemispherical head is fixed at one end of the rotating frame 12 near the support shaft 11. Circular holes are opened at the front and bottom of the limiting ring groove 112, and these holes communicate with the limiting ring groove 112. The rear end of the push frame 14 is fixedly connected to the rear side of the machine frame 3. Both ends of the support shaft 11 are fixedly connected to the two ends inside the machine frame 3. Support tubes are fixed on both sides of the rotating frame 12, and ratchet 13 is fixedly connected to the support tubes. The test frame 16 is moved forward by the telescopic parts of four hydraulic rods 17. The side placement seats 15 are fitted together to inspect the PCB circuit board clamped and fixed on the placement seat 15. During this process, the test frame 16 drives the push frame 14 to move forward synchronously. When the push frame 14 moves forward, the ratchet 13 does not drive the rotating frame 12 to flip forward. After the PCB circuit board is inspected, the hydraulic rod 17 drives the test frame 16 and the push frame 14 to move forward. The test frame 16 separates from the placement seat 15, and the push frame 14 drives the ratchet 13 to flip the rotating frame 12 to the rear. Then, the placement seat 15 on the lower side of the rotating frame 12 without the PCB circuit board is rotated to the front position of the frame 3. The PCB circuit board that was just clamped on the rotating frame 12 is rotated to correspond with the camera 4. The camera 4 takes pictures of the PCB circuit board for observation. At the same time, with another movement of the test frame 16, the placement seat 15 with the PCB circuit board is rotated to the rear position corresponding to the test frame 16. At this time, as the test frame 16 continues to move back and forth, the PCB circuit board that has been inspected is rotated to the bottom to correspond with the conveying component 5.

[0018] In this embodiment: the clamping mechanism 2 includes a pusher frame 21, a push rod 22 is fixed to one end of the pusher frame 21 near the support shaft 11, a positioning seat 23 is fixed to the outside of the push rod 22, a return spring 24 is fixed to the center of the pusher frame 21, four ring-shaped connecting rods 25 are fixed to the outside of the positioning seat 23, and a clamping plate 26 is hinged to the end of each connecting rod 25 away from the positioning seat 23. The front end of the clamping plate 26 extends out of the end of the rotating frame 12. The lower side of the pusher frame 14 is provided with teeth for meshing with the ratchet 13. The front end of the pusher frame 21 extends out of the end of the rotating frame 12, and the outer side of the rotating frame 12 is located at the four corners of the placement seat 15. A sliding groove is provided, and a guide groove is provided on the outer side of the rotating frame 12 at the position of the clamping plate 26. By placing the PCB circuit board to be inspected in front of the rotating frame 12, the PCB circuit board is pushed against the front end of the pusher 21. At this time, the front end of the pusher 21 will retract along the sliding groove into the rotating frame 12, and then the PCB circuit board will be attached to the placement seat 15. At the same time, during the movement of the pusher 21, the push rod 22 and the positioning seat 23 move synchronously towards the support shaft 11. At this time, the hemispherical head at the end of the push rod 22 slides into the limiting ring groove 112 through the round hole on the front side of the limiting ring groove 112. Inside the 12, the return spring 24 is stretched, and during this process, the magnetic block 113 attracts the hemispherical head that extends into the limiting ring groove 112, thereby preventing the push rod 22 from slipping out of the limiting ring groove 112. In addition, the movement of the push rod 22 drives the four connecting rods 25 to move synchronously. As the four connecting rods 25 follow the movement of the push rod 22, they drive the four clamping plates 26 to move towards each other and converge at the placement seat 15, thereby clamping and fixing the PCB circuit board at the placement seat 15. After the PCB circuit board rotates 270 degrees with the rotating frame 12, the PCB circuit board is inspected. With the push rod 22 facing downwards, its hemispherical head slides 270 degrees within the limiting ring groove 112 and aligns with the circular hole on the lower side of the limiting seat 111. At this point, under the tension of the return spring 24, the pusher 21 moves towards the lower side of the rotating frame 12. Simultaneously, the pusher 21 drives the push rod 22 and the positioning seat 23 to move synchronously, thereby causing the four connecting rods 25 to push their respective clamping plates 26 away from each other, thus allowing the four clamping plates 26 to disengage from the clamping and fixing of the PCB circuit board side. At this point, the PCB circuit board will fall onto the conveying component 5 due to gravity, and the conveying component 5 will send out the PCB circuit board after the inspection is completed.

[0019] In this embodiment: the conveying assembly 5 includes a conveyor belt, and conveying rollers are provided inside both ends of the conveyor belt. The front and rear ends of the two conveying rollers are rotatably connected to the lower side of the frame 3. A drive motor is fixedly installed on the front side of the conveyor belt. The drive motor drives the conveying rollers on the rear side to rotate. The rotation of the conveying rollers drives the entire conveyor belt to transport the PCB circuit board after inspection.

[0020] Working principle: In use, first place the PCB circuit board to be tested on the placement seat 15 on the front side of the rotating frame 12, then push the PCB circuit board against the front end of the pusher 21. At this time, the front end of the pusher 21 will retract into the rotating frame 12 along the sliding groove, and then the PCB circuit board will be attached to the placement seat 15. At the same time, during the movement of the pusher 21, the push rod 22 and the positioning seat 23 will move synchronously towards the support shaft 11. At this time, the hemispherical head at the end of the push rod 22 passes through the front side of the limiting ring groove 112. The round hole slides into the limiting ring groove 112, and at the same time the return spring 24 is stretched. During this process, the hemispherical head inserted into the limiting ring groove 112 is attracted by the magnetic block 113, thereby preventing the push rod 22 from sliding out of the limiting ring groove 112. In addition, the movement of the push rod 22 drives the four connecting rods 25 to move synchronously. At the same time, the four connecting rods 25 drive the four clamping plates 26 to move towards the placement seat 15 and gather together, thereby clamping and fixing the PCB circuit board at the placement seat 15. Subsequently, the four hydraulic rods 17 extend and retract, causing the test frame 16 to move forward and engage with the placement seat 15 on the outside of the rotating frame 12, thereby inspecting the PCB circuit board clamped and fixed on the placement seat 15. During this process, the test frame 16 drives the pusher 14 to move forward synchronously. When the pusher 14 moves forward, the ratchet 13 does not cause the rotating frame 12 to flip forward. After the PCB circuit board inspection is completed, the hydraulic rods 17 drive the test frame 16 and the pusher 14 to move forward, separating the test frame 16 from the placement seat 15. The pusher 14 then drives the ratchet 13 to flip the rotating frame 12 backward. At the same time, the four push rods 22 inside the rotating frame 12 slide backward along the limiting ring groove 112 of the limiting seat 111. During this process, the placement seat 15, which does not have a PCB circuit board on the lower side of the rotating frame 12, is rotated to the front position of the frame 3. The PCB circuit board that was just clamped on the rotating frame 12 is rotated to align with the camera 4, and the camera 4 takes pictures of the PCB circuit board for observation. At the same time, with another movement of the test frame 16, the PCB circuit board is rotated to align with the camera 4. The PCB board holder 15 rotates with the rotating frame 12 to the rear position corresponding to the test frame 16. The PCB board corresponding to the test frame 16 is then tested. When the test frame 16 moves forward again, the PCB board rotates 270 degrees with the rotating frame 12. The tested PCB board is then placed face down. Simultaneously, the hemispherical head of the push rod 22 slides 270 degrees within the limiting ring groove 112 and aligns with the circular hole on the lower side of the limiting seat 111. At this point, the push rod 21 is pushed by the tension of the return spring 24. The rotating frame 12 moves downwards, and at the same time, the pusher 21 drives the push rod 22 and the positioning seat 23 to move synchronously. Then, the four connecting rods 25 push their respective clamping plates 26 away from each other, so that the four clamping plates 26 are released from the clamping and fixing of the PCB circuit board. At this time, the PCB circuit board will fall onto the conveying assembly 5 due to gravity. The drive motor drives the conveying roller behind it to rotate. The rotation of the conveying roller drives the entire conveyor belt to transport the PCB circuit board after inspection. The conveyor belt sends the inspected PCB circuit board out of the frame 3.

[0021] 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 circuit board detection device, comprising a rack (3), a camera (4) is arranged on the top side of the inside of the rack (3), and a conveying assembly (5) is arranged on the lower side of the inside of the rack (3), characterized in that: It also includes a flipping mechanism (1), on the outside of which are four ring-shaped clamping mechanisms (2), and the flipping mechanism (1) is located in the middle of the frame (3); The flipping mechanism (1) includes a support shaft (11), a rotating frame (12) is rotatably connected to the outside of the support shaft (11), four ring-shaped placement seats (15) are fixed on the outside of the rotating frame (12), ratchet wheels (13) are provided on both sides of the rotating frame (12) that can only drive it to flip backward, a test frame (16) is provided on the rear side of the rotating frame (12), a hydraulic rod (17) is fixed on the rear side of the test frame (16), a pusher frame (14) is fixed on both sides of the test frame (16), a limit seat (111) is fixed in the middle of the support shaft (11), a limit ring groove (112) is opened on the outside of the limit seat (111), and a magnetic block (113) is fixed inside the limit ring groove (112). The clamping mechanism (2) includes a pusher frame (21), a push rod (22) is fixed at one end of the pusher frame (21) near the support shaft (11), a positioning seat (23) is fixed on the outside of the push rod (22), a return spring (24) is fixed at the center of the pusher frame (21), and four ring-shaped connecting rods (25) are fixed on the outside of the positioning seat (23). Each connecting rod (25) is hinged to a clamping plate (26) at one end away from the positioning seat (23), and the front end of the clamping plate (26) extends out of the end of the rotating frame (12).

2. The PCB inspection apparatus according to claim 1, wherein: The pusher (14) has teeth on its lower side for engaging with the ratchet (13), and the front end of the pusher (21) extends out of the end of the rotating frame (12).

3. The PCB circuit board testing equipment according to claim 1, characterized in that: The rotating frame (12) has sliding grooves at the four corners of the placement seat (15) on its outer side, and a guide groove is provided on the outer side of the rotating frame (12) at the position of the clamping plate (26).

4. The PCB circuit board testing equipment according to claim 1, characterized in that: The rotating frame (12) has a hemispherical head fixed at one end near the support shaft (11), and the limiting ring groove (112) has round holes at the front and bottom, and the round holes are connected to the limiting ring groove (112).

5. The PCB circuit board testing equipment according to claim 1, characterized in that: The rear end of the pusher (14) is fixedly connected to the rear side inside the frame (3), and the two ends of the support shaft (11) are fixedly connected to the two ends inside the frame (3).

6. The PCB circuit board testing equipment according to claim 1, characterized in that: Both sides of the rotating frame (12) are fixed with support tubes, and the ratchet (13) is fixedly connected to the support tubes.

7. The PCB circuit board testing equipment according to claim 1, characterized in that: The conveying assembly (5) includes a conveyor belt, and conveying rollers are provided inside both ends of the conveyor belt. The front and rear ends of the two conveying rollers are rotatably connected to the lower side of the frame (3), and a drive motor is fixedly installed on the front side of the conveyor belt.

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