PCB (Printed Circuit Board) electrical testing equipment

Abstract

The utility model relates to the field of PCB (Printed Circuit Board) testing equipment, in particular to PCB electrical testing equipment, which comprises a clamping assembly and a testing assembly, and is provided with a testing probe and a testing probe which are respectively positioned at two ends of a PCB in the thickness direction. The first lifting cylinder and the driving module respectively drive the test probe and the test probe to contact the PCB for testing, and compared with the technical scheme of step-by-step testing after the PCB is turned over in the prior art, the technical scheme adopted by the utility model can synchronously test the PCB with elements and circuits on both sides; and the test efficiency is improved.

Description

Technical Field

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

[0002] During the manufacturing process of PCBs, electrical continuity testing is typically required, i.e., short-circuit and open-circuit detection. Existing PCB electrical testing equipment usually uses movable probes or sensors to test multiple test points on the PCB. However, existing PCB electrical testing equipment is generally only suitable for testing PCBs with components and circuits on one side. For PCBs with components and circuits on both sides, testing is performed step-by-step by flipping the PCB, which is inefficient. Utility Model Content

[0003] The technical solution adopted by this utility model to solve its technical problem is: to provide a PCB board electrical testing device, comprising:

[0004] A clamping assembly, comprising a robotic arm and an adsorption component disposed at the output end of the robotic arm, wherein the robotic arm is used to drive the adsorption component to move the PCB board, and multiple test components are disposed on the periphery of the robotic arm;

[0005] The testing assembly includes a frame, and a drive cylinder and a first lifting cylinder mounted on the frame. The output end of the drive cylinder is connected to a carrier plate for placing a PCB board. The output end of the first lifting cylinder is provided with a lifting frame, which is connected to a carrier plate. The carrier plate is provided with a plurality of test probes. The drive cylinder is used to drive the PCB board to move to correspond with the test probes. The first lifting cylinder is used to drive the test probes to move to contact the PCB board and perform testing. The testing assembly also includes a drive module and a test probe connected to the output end of the drive module. The test probes are located at opposite ends of the PCB board in the thickness direction. The drive module is used to drive the test probes to contact the PCB board for testing.

[0006] Furthermore, the drive module includes a first belt conveyor mechanism and a second belt conveyor mechanism connected to the output end of the first belt conveyor mechanism. The output end of the second belt conveyor mechanism is connected to a second lifting cylinder. The output end of the second lifting cylinder is provided with a mounting plate for supporting the test probe. The second lifting cylinder is used to drive the test probe to rise and fall.

[0007] Furthermore, the lifting frame is equipped with a pressing cylinder, and the output end of the pressing cylinder is connected to a pressing block. The pressing cylinder is used to drive the pressing block to press down on the PCB board.

[0008] Furthermore, the pressure block is provided with a counterweight.

[0009] Furthermore, it also includes a feeding module, which is used to transport PCB boards to a location corresponding to the robotic arm. The feeding module includes a first belt conveyor mechanism and a second belt conveyor mechanism arranged opposite to each other, as well as a ball screw. The ball screw is connected to an adjusting motor, and the ball screw is threadedly connected to the first belt conveyor mechanism. The adjusting motor is used to drive the first belt conveyor mechanism to move.

[0010] Furthermore, the feeding module also includes a lifting cylinder disposed between the first belt conveyor mechanism and the second belt conveyor mechanism. The output end of the lifting cylinder is connected to a lifting plate, the lifting plate is connected to a pushing cylinder, the output end of the pushing cylinder is connected to a pushing frame, and the pushing frame is connected to a pushing block. The lifting cylinder is used to drive the pushing block to rise and fall to correspond with the PCB board, and the pushing cylinder is used to drive the pushing block to push the PCB board to move.

[0011] Furthermore, the pusher is connected to a slide rail, and the feeding module also includes a telescopic spring, one end of which is connected to the push block, and the other end of which is connected to the pusher.

[0012] Furthermore, the adsorption component includes a support plate connected to the output end of the robotic arm, and two adsorption plates connected to the support plate. Vacuum adsorption heads are connected to the adsorption plates, and the robotic arm is used to drive the vacuum adsorption heads to move and drive the two adsorption plates to rotate.

[0013] Furthermore, it also includes a first unloading module, a second unloading module, and a waste bin. The first unloading module is used to transport qualified parts to the next process, the second unloading module is used to transport NG parts to the waste bin, and the waste bin is connected to an unloading cylinder, which is used to drive the waste bin to rise and fall.

[0014] Furthermore, it also includes a barcode scanner, which is mounted on the feeding module and is used to identify PCB boards.

[0015] The beneficial effects of this utility model are as follows: By setting test probes and test probes located at both ends of the PCB board thickness direction, when testing both sides of the PCB, the test probes and test probes are driven to contact the PCB board for testing by the first lifting cylinder and the drive module, respectively. Compared with the existing technology that uses the PCB board to be flipped and then tested in steps, the technical solution adopted by this utility model can simultaneously test PCB boards with components and circuits on both sides, thus improving testing efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1A top view of a PCB board electrical testing device provided in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the 3D structure of the PCB board electrical testing equipment.

[0019] Figure 3 for Figure 1 A three-dimensional structural diagram of part of the structure shown;

[0020] Figure 4 for Figure 1 The diagram shows the 3D structure of the feeding module.

[0021] Figure 5 for Figure 4 The diagram shows a three-dimensional structural representation of the feeding module.

[0022] Figure 6 for Figure 1 The three-dimensional structure diagram of the test component is shown;

[0023] Figure 7 for Figure 6 The test component shown is a side view with part of the casing hidden.

[0024] Figure 8 for Figure 6 The diagram shows a three-dimensional structural representation of a portion of the test component.

[0025] Figure 9 for Figure 6 The diagram shows a three-dimensional structural representation of a portion of the test component.

[0026] Explanation of reference numerals in the attached drawings: 100, PCB board electrical testing equipment; 10, clamping assembly; 11, robotic arm; 12, adsorption component; 121, support plate; 122, adsorption plate; 123, vacuum adsorption head; 20, testing assembly; 21, frame; 211, handle; 22, drive cylinder; 221, carrier plate; 23, first lifting cylinder; 231, lifting frame; 232, carrier plate; 2321, test probe; 24, drive module; 241, first belt conveyor mechanism; 242, second belt conveyor mechanism; 243, second lifting cylinder; 2431, mounting plate; 25, test probe; 26. Pressing cylinder; 261. Pressing block; 262. Counterweight block; 30. Feeding module; 31. First belt conveyor mechanism; 32. Second belt conveyor mechanism; 33. Ball screw; 34. Adjusting motor; 35. Lifting cylinder; 36. Lifting plate; 37. Pushing cylinder; 38. Push frame; 381. Slide rail; 382. Telescopic spring; 39. Pushing block; 40. First unloading module; 50. Second unloading module; 60. Scrap bin; 61. Unloading cylinder; 70. Barcode scanner; 80. Housing; 81. Positioning rod; 82. Positioning cylinder; 821. Positioning block; 200. PCB board. Detailed Implementation

[0027] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Please refer to Figure 1 This utility model provides a PCB board electrical testing device 100, including a clamping assembly 10, a feeding module 30, a first unloading module 40, a second unloading module 50, and a waste bin 60, as well as a housing 80 for carrying various components (only a portion of the housing 80 is shown in the figure). The first unloading module 40 is used to transport qualified parts to the next process. The second unloading module 50 is used to transport NG parts to the waste bin 60.

[0029] Please refer to Figure 1 and Figure 3The clamping assembly 10 includes a robotic arm 11 and an adsorption component 12 disposed at the output end of the robotic arm 11. The robotic arm 11 drives the adsorption component 12 to move the PCB board 200. Multiple test components 20 are arranged around the periphery of the robotic arm 11. It can be understood that the loading module 30, the first unloading module 40, the second unloading module 50, the waste bin 60, and each test component 20 are all within the running trajectory of the robotic arm 11, so as to facilitate the transfer of multiple PCB boards 200 by the robotic arm 11.

[0030] Please refer to Figure 3 The adsorption component 12 includes a support plate 121 fixedly connected to the output end of the robot arm 11, and two adsorption plates 122 connected to the support plate 121. Vacuum adsorption heads 123 are connected to the adsorption plates 122. The robot arm 11 drives the vacuum adsorption heads 123 to move and drives the two adsorption plates 122 to rotate. Specifically, in this embodiment, the robot arm 11 is a SCARA (Selective Compliant Assembly Robot Arm) as described in the prior art. The robot arm 11 drives the support plate 121 to rotate to achieve switching between the two adsorption plates 122, and drives the support plate 121 to rise and fall to complete the adsorption of the PCB board 200. By setting two adsorption plates 122, the number of PCB boards 200 adsorbed by the robot arm 11 in a single operation is increased, thereby improving the transportation efficiency of the robot arm 11.

[0031] Please refer to Figure 1 and Figure 4 The loading module 30 is used to transport the PCB board 200 to the corresponding position of the robotic arm 11. Further, the loading module 30 includes a first belt conveyor mechanism 31 and a second belt conveyor mechanism 32 arranged opposite to each other, and a ball screw 33. The ball screw 33 is connected to an adjusting motor 34, and the ball screw 33 and the first belt conveyor mechanism 31 are threadedly connected. The adjusting motor 34 is used to drive the first belt conveyor mechanism 31 to move. Specifically, the ball screw 33 passes through the main body of the second belt conveyor mechanism 32 and is rotatably connected to the main body of the second belt conveyor mechanism 32. The ball screw 33 and the main body of the first belt conveyor mechanism 31 are threadedly connected, and the drive mechanisms of the first belt conveyor mechanism 31 and the second belt conveyor mechanism 32 rotate synchronously. The first belt conveyor mechanism 31 and the second belt conveyor mechanism 32 are both existing technologies, and their specific structures are not described in detail in this embodiment.

[0032] When it is necessary to adjust the spacing between the first belt transmission mechanism 31 and the second belt transmission mechanism 32, the adjustment motor 34 is started, causing the ball screw 33 to rotate and drive the first belt transmission mechanism 31 to move closer to or further away from the second belt transmission mechanism 32, so that the spacing between the first belt transmission mechanism 31 and the second belt transmission mechanism 32 is adapted to the size of the PCB board 200.

[0033] Please refer to Figure 1, Figure 4 and Figure 5 Specifically, in this embodiment, the structure of the first unloading module 40 and the structure of the second unloading module 50 are the same as those of the loading module 30 described in the above embodiment. The difference is that the loading module 30 also includes a lifting cylinder 35 disposed between the first belt conveyor mechanism 31 and the second belt conveyor mechanism 32. The output end of the lifting cylinder 35 is fixedly connected to a lifting plate 36, and the lifting plate 36 is fixedly connected to a pushing cylinder 37. The output end of the pushing cylinder 37 is connected to a pushing frame 38, and the pushing frame 38 is connected to a pushing block 39. The lifting cylinder 35 is used to drive the pushing block 39 to rise and fall to correspond with the PCB board 200, and the pushing cylinder 37 is used to drive the pushing block 39 to push the PCB board 200 to move.

[0034] Please refer to Figure 5 A slide rail 381 is fixedly connected to the pusher 38, and the pusher block 39 is slidably mounted on the slide rail 381. The feeding module 30 also includes a telescopic spring 382, ​​one end of which is fixedly connected to the pusher block 39, and the other end of which is fixedly connected to the pusher 38. Through the arrangement of the slide rail 381 and the telescopic spring 382, ​​when the pusher cylinder 37 drives the pusher block 39 to push the PCB board 200, the telescopic spring 382 is compressed. The elastic force of the telescopic spring 382 offsets part of the pushing force of the pusher block 39 on the PCB board 200, thereby reducing the possibility of damage to the PCB board 200 due to excessive pushing force from the pusher block 39.

[0035] Please refer to Figure 2 The end of the second unloading module 50 in the conveying direction corresponds to the waste bin 60. The waste bin 60 is connected to an unloading cylinder 61, which is used to drive the waste bin 60 to lift. Specifically, the unloading cylinder 61 is fixedly connected to the housing 80, and the output end of the unloading cylinder 61 is fixedly connected to the waste bin 60.

[0036] Please refer to Figure 6 and Figure 7 The test assembly 20 includes a frame 21, and a drive cylinder 22 and a first lifting cylinder 23 mounted on the frame 21. The output end of the drive cylinder 22 is connected to a carrier plate 221, which is used to place the PCB board 200. The output end of the first lifting cylinder 23 is provided with a lifting frame 231, which is connected to a carrier plate 232. The carrier plate 232 is provided with a plurality of test probes 2321. The drive cylinder 22 is used to drive the PCB board 200 to move to correspond with the test probes 2321, and the first lifting cylinder 23 is used to drive the test probes 2321 to move to contact the PCB board 200 and perform testing.

[0037] Please refer to Figure 8The lifting frame 231 is equipped with a pressing cylinder 26, the output end of which is connected to a pressure block 261. The pressing cylinder 26 drives the pressure block 261 to press down on the PCB board 200. The carrier board 232 is provided with a through slot (not labeled in the figure) for the pressure block 261 to pass through. When the first lifting cylinder 23 drives the test probe 2321 to descend and contact the PCB board 200, the pressing cylinder 26 drives the pressure block 261 to descend and press down on the PCB board 200, making it difficult for the PCB board 200 to move during testing and affect the test.

[0038] The pressure block 261 is equipped with a counterweight 262. By setting the counterweight 262, the pressure of the pressure block 261 on the PCB is increased, making the PCB board 200 less likely to move during testing and affect the test.

[0039] Please refer to Figure 6 and Figure 7 The test assembly 20 also includes a drive module 24 and a test probe 25 connected to the output of the drive module 24. The test probe 2321 and the test probe 25 are located at opposite ends of the thickness direction of the PCB board 200. The drive module 24 is used to drive the test probe 25 to contact the PCB board 200 for testing. By setting the test probe 2321 and the test probe 25 at opposite ends of the thickness direction of the PCB board 200, when testing both sides of the PCB, the first lifting cylinder 23 and the drive module 24 drive the test probe 2321 and the test probe 25 to contact the PCB board 200 for testing. Compared with the prior art, which uses a step-by-step testing method after flipping the PCB board 200, the technical solution adopted by this utility model can simultaneously test the PCB board 200 with components and circuits on both sides, thus improving testing efficiency.

[0040] Please refer to Figure 9 Specifically, in this embodiment, the drive module 24 includes a first belt conveyor mechanism 241 and a second belt conveyor mechanism 242 connected to the output end of the first belt conveyor mechanism 241. A second lifting cylinder 243 is connected to the output end of the second belt conveyor mechanism 242. The output end of the second lifting cylinder 243 is provided with a mounting plate 2431 for supporting the test probe 25. The second lifting cylinder 243 is used to drive the test probe 25 to rise and fall. The first belt conveyor mechanism 241 is arranged along the length direction of the frame 21, the second belt conveyor mechanism 242 is arranged along the width direction of the frame 21, and the second lifting cylinder 243 is arranged along the height direction of the frame 21.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3The housing 80 is equipped with multiple positioning rods 81 and positioning cylinders 82. The output end of each positioning cylinder 82 has a positioning block 821. Two positioning rods 81 and two positioning cylinders 82 form a group. The two positioning rods 81 are connected sequentially at a 90-degree angle. The positioning cylinder 82 drives the positioning block 821 and the positioning rods 81 to form a three-sided limit, thereby positioning each test component 20. A handle 211 is connected to the frame 21. When the frame 21 is placed on the housing 80, the handle 211 is located at the notch in the space formed by the positioning block 821 and the positioning rods 81, so that when replacing the test component 20, the handle 211 can be pulled directly to pull the test component 20 out of the space formed by the positioning block 821 and the positioning rods 81.

[0042] Please refer to Figure 1 and Figure 3 The PCB board electrical testing equipment 100 also includes a barcode scanner 70, which is mounted on the loading module 30 and is used to identify the PCB board 200. Specifically, in this embodiment, the barcode scanner 70 is located at the starting point of the loading module 30.

Claims

1. A PCB board electrical testing device, characterized in that, include: A clamping assembly, comprising a robotic arm and an adsorption component disposed at the output end of the robotic arm, wherein the robotic arm is used to drive the adsorption component to move the PCB board, and multiple test components are disposed on the periphery of the robotic arm; The testing assembly includes a frame, and a drive cylinder and a first lifting cylinder mounted on the frame. The output end of the drive cylinder is connected to a carrier plate for placing a PCB board. The output end of the first lifting cylinder is provided with a lifting frame, which is connected to a carrier plate. The carrier plate is provided with a plurality of test probes. The drive cylinder is used to drive the PCB board to move to correspond with the test probes. The first lifting cylinder is used to drive the test probes to move to contact the PCB board and perform testing. The testing assembly also includes a drive module and a test probe connected to the output end of the drive module. The test probes are located at opposite ends of the PCB board in the thickness direction. The drive module is used to drive the test probes to contact the PCB board for testing.

2. The PCB board electrical testing equipment according to claim 1, characterized in that: The drive module includes a first belt conveyor mechanism and a second belt conveyor mechanism connected to the output end of the first belt conveyor mechanism. The output end of the second belt conveyor mechanism is connected to a second lifting cylinder. The output end of the second lifting cylinder is provided with a mounting plate for supporting the test probe. The second lifting cylinder is used to drive the test probe to rise and fall.

3. The PCB board electrical testing equipment according to claim 1, characterized in that: The lifting frame is equipped with a pressing cylinder, and the output end of the pressing cylinder is connected to a pressing block. The pressing cylinder is used to drive the pressing block to press down on the PCB board.

4. The PCB board electrical testing equipment according to claim 3, characterized in that: The pressure block is equipped with a counterweight.

5. The PCB board electrical testing equipment according to claim 1, characterized in that: It also includes a feeding module, which is used to transport PCB boards to a location corresponding to the robotic arm. The feeding module includes a first belt conveyor mechanism and a second belt conveyor mechanism arranged opposite to each other, as well as a ball screw. The ball screw is connected to an adjusting motor. The ball screw and the first belt conveyor mechanism are threadedly connected. The adjusting motor is used to drive the first belt conveyor mechanism to move.

6. The PCB board electrical testing equipment according to claim 5, characterized in that: The feeding module also includes a lifting cylinder disposed between the first belt conveyor mechanism and the second belt conveyor mechanism. The output end of the lifting cylinder is connected to a lifting plate, the lifting plate is connected to a pushing cylinder, the output end of the pushing cylinder is connected to a pushing frame, and the pushing frame is connected to a pushing block. The lifting cylinder is used to drive the pushing block to rise and fall to correspond with the PCB board, and the pushing cylinder is used to drive the pushing block to push the PCB board to move.

7. The PCB board electrical testing equipment according to claim 6, characterized in that: The pusher is connected to a slide rail, and the feeding module also includes a telescopic spring. One end of the telescopic spring is connected to the push block, and the other end of the telescopic spring is connected to the pusher.

8. The PCB board electrical testing equipment according to claim 1, characterized in that: The adsorption component includes a support plate connected to the output end of the robotic arm, and two adsorption plates connected to the support plate. Vacuum adsorption heads are connected to the adsorption plates, and the robotic arm is used to drive the vacuum adsorption heads to move and drive the two adsorption plates to rotate.

9. The PCB board electrical testing equipment according to claim 1, characterized in that: It also includes a first unloading module, a second unloading module, and a waste bin. The first unloading module is used to transport qualified parts to the next process, the second unloading module is used to transport NG parts to the waste bin, and the waste bin is connected to an unloading cylinder, which is used to drive the waste bin to rise and fall.

10. The PCB board electrical testing equipment according to claim 5, characterized in that: It also includes a barcode scanner, which is mounted on the feeding module and is used to identify PCB boards.

Images