tester

Abstract

The utility model discloses a test machine relates to PCB processing technical field, wherein, test machine includes testing arrangement, detection device and transplanting device, the testing arrangement is used to carry out electric performance test to PCB board, the detection device is used to detect the plug -in quality of PCB board before carrying out electric performance test to PCB board, the transplanting device is used to the loading PCB board to and is used to remove the PCB board between the work area of detection device and testing arrangement, the utility model provides technical scheme can guarantee that PCB board can carry out electric performance test under the condition that the plug -in quality is eligible, to can promote PCB board electric performance test accuracy.

Description

Technical Field

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

[0002] After wave soldering, a certain percentage of through-hole components on the PCB board exhibit defects such as poor insertion and floating, requiring post-soldering inspection and repair. Currently, most inspections are done manually, which is prone to fatigue and errors over long periods, resulting in uncontrollable quality. Utility Model Content

[0003] The main purpose of this invention is to provide a testing machine that ensures that PCB boards can undergo electrical performance testing when the component quality is qualified, thereby improving the accuracy of PCB board electrical performance testing.

[0004] To achieve the above objectives, the testing machine proposed in this utility model includes:

[0005] The testing device is used to perform electrical performance testing on a PCB board;

[0006] A testing device is used to inspect the component quality of the PCB board before performing electrical performance testing on the PCB board; and

[0007] A transfer device is used to load the PCB board and to transfer the PCB board between the working area of ​​the detection device and the testing device.

[0008] In one embodiment, the detection device includes a first driving component and a detection body. The first driving component is used to drive the detection body to reciprocate along a first direction. The transplanting device includes a second driving component and a transplanting module. The transplanting module is used to place a PCB board. The second driving component is used to drive the transplanting module to reciprocate along a second direction. The second direction and the first direction are intersected.

[0009] In one embodiment, the detection body is configured as a contour scanner for scanning the three-dimensional contour of a PCB board.

[0010] In one embodiment, the transplanting module includes a first conveyor and a first transplanting drive connected to the first conveyor. The first conveyor is used to place a PC board, and the first transplanting drive is used to drive the first conveyor to transport the PC board along a first direction.

[0011] The transplanting module has a first docking position that connects with the input side of the testing device. The transplanting module is used to move the PC board into the testing device along a first direction via the first conveyor when in the first docking position.

[0012] In one embodiment, the testing device includes a first conveying component and a testing body. The testing body has a testing area. The first conveying component is used to receive the PCB board conveyed by the transfer module and transport the PCB board to the testing area.

[0013] In one embodiment, the test body includes a test driver and a test piece. The test piece is disposed opposite to the test area along a third direction. The test driver is used to drive the test piece to move closer to or away from the test area to perform electrical performance testing on the PCB board located in the test area. The first direction, the second direction, and the third direction are arranged intersecting each other.

[0014] In one embodiment, the testing machine further includes a feeding device for conveying substandard PC boards out of the testing machine. The transfer module has a second docking position that connects with the input side of the feeding device. The transfer module is used to move the substandard PC boards into the feeding device along a first direction via the first conveyor when in the second docking position.

[0015] In one embodiment, the second driving component includes a first track component and a second transplanting driving component. The first track component extends along a second direction. The testing device and the unloading device are located on one side of the first track component along a first direction. The detection device is disposed opposite to the first track component along a third direction. The second transplanting driving component is used to drive the transplanting module to reciprocate along the first track component, so as to reciprocate between the working area of ​​the detection device, the first docking position, and the second docking position. The first direction, the second direction, and the third direction are arranged intersecting each other.

[0016] In one embodiment, the working area of ​​the detection device at least partially overlaps with the first docking position.

[0017] In one embodiment, the testing device is provided in two sets, and the feeding device is located between the two testing devices.

[0018] The technical solution of this utility model is to set up a testing machine including a testing device, a detection device, and a transfer device. The transfer device is used to load PCB boards and to transfer the PCB boards between the detection device and the testing device. In this way, the transfer device can be moved between the loading position and the testing device of the original testing machine. The detection device is set on the movement path of the transfer device, so that the movement path of the transfer device can cover the working area of ​​the detection device. This allows for pre-inspection of the component quality of the PCB board, thereby ensuring that the PCB board can be tested for electrical performance if the component quality is qualified, thus improving the accuracy of PCB board electrical performance testing. Attached Figure Description

[0019] 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 the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the testing machine provided by this utility model;

[0021] Figure 2 for Figure 1 Schematic diagram showing the relative positions of the transplanting device and the detection device;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of an embodiment of the testing device;

[0023] Figure 4 for Figure 1 A structural schematic diagram of the testing machine from another angle.

[0024] Explanation of icon numbers:

[0025] 100. Testing machine; 10. Testing device; 11. First conveying component; 12. Testing body; 121. Testing drive component; 122. Testing component; 20. Detection device; 21. First drive component; 211. Detection drive component; 212. Second track component; 22. Detection body; 30. Transplanting device; 30a. First docking position; 30b. Second docking position; 31. Transplanting module; 311. First conveying component; 312. First transplanting drive component; 313. Support frame; 32. Second drive component; 321. First track component; 322. Second transplanting drive component; 40. Unloading device.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] After wave soldering, a certain percentage of through-hole components on the PCB board exhibit defects such as poor insertion and floating, requiring post-soldering inspection and repair. Currently, most inspections are done manually, which is prone to fatigue and errors over long periods, resulting in uncontrollable quality.

[0031] This utility model proposes a testing machine 100.

[0032] Please see Figures 1 to 4In one embodiment of this utility model, the testing machine 100 includes a testing device 10, a detection device 20, and a transfer device 30; the testing device 10 is used to perform electrical performance testing on the PCB board, the detection device 20 is used to detect the component quality of the PCB board before performing electrical performance testing on the PCB board, and the transfer device 30 is used to load the PCB board and transfer the PCB board between the working area of ​​the detection device 20 and the testing device 10.

[0033] In this invention, the testing device 10 may include multiple sets, which are arranged sequentially at intervals. The testing device 10 can be used to perform open circuit and short circuit tests on PCB board components, or resistance and capacitance tests, or functional tests such as current, voltage, and power tests. The testing functions of the multiple testing devices 10 may be the same or different. When the testing functions of the multiple testing devices 10 are different, the transfer device 30 is used to move the PCB board between the various testing devices 10 after loading the PCB board, so that the PCB board can undergo multiple electrical performance tests. When the testing functions of the multiple testing devices 10 are the same, the multiple testing devices 10 can simultaneously perform electrical performance tests on multiple PCB boards.

[0034] The inspection device 20 can be used to inspect the appearance and contour of the PCB board, such as inspecting the components on the PCB board, and checking the height of the components protruding from the PCB board to determine whether the insertion depth of the components on the PCB board meets the requirements and whether there is any floating phenomenon caused by poor insertion. In this way, the component quality of the PCB board can be visually inspected before the electrical performance test. By setting the transfer device 30 to move between the working area of ​​the inspection device 20 and the testing device 10, the PCB board can undergo visual inspection before the electrical performance test.

[0035] Specifically, by adding a detection device 20 within the original movement range of the transfer device 30, the working area of ​​the detection device 20 can cover the movement range of the transfer device 30. This allows the transfer device 30 to move PCB boards between the testing devices 10, or to move PCB boards between the loading or unloading positions of the testing devices 10 and the testing machine 100, so that the PCB boards can be moved to the working range of the detection device 20 for pre-inspection of the component quality, ensuring that the PCB boards can be tested for electrical performance under the condition that the component quality is qualified.

[0036] The technical solution of this utility model is to set up a testing machine 100 including a testing device 10, a detection device 20 and a transfer device 30. The transfer device 30 is used to load PCB boards and to transfer the PCB boards between the detection device 20 and the testing device 10. In this way, the transfer device 30 can move between the original loading position of the testing machine 100 and the testing device 10. The detection device 20 is set on the movement path of the transfer device 30, so that the movement path of the transfer device 30 can cover the working area of ​​the detection device 20. This allows for pre-inspection of the component quality of the PCB board, thereby ensuring that the PCB board can be tested for electrical performance if the component quality is qualified, thus improving the accuracy of the PCB board electrical performance test.

[0037] like Figure 1 , Figure 2 As shown, in one embodiment, the detection device 20 includes a first driving component 21 and a detection body 22. The first driving component 21 is used to drive the detection body 22 to reciprocate along a first direction. The transplanting device 30 includes a second driving component 32 and a transplanting module 31. The transplanting module 31 is used to place a PCB board. The second driving component 32 is used to drive the transplanting module 31 to reciprocate along a second direction. The second direction and the first direction are intersected.

[0038] In this invention, the first direction can be a front-back direction, and the second direction can be a left-right direction. When the second drive component 32 drives the transfer module 31 to reciprocate along the second direction, it can also move the transfer module 31 within the loading station, the position where it docks with the testing device 10, and the working area of ​​the detection device 20, so that the transfer device 30 can load the PCB board and transfer the PCB board between the working area of ​​the detection device 20 and the testing device 10. When the second drive component 32 moves the transfer module into the working area of ​​the detection device 20, the first drive component 21 of the detection device 20 drives the detection body 22 to reciprocate along the first direction, which can perform a front-to-back scanning of the PCB board. In this case, the second drive component 32 can also drive the transfer module 31 to reciprocate along the second direction to perform a left-to-right scanning of the PCB board. In this way, the detection body 22 can achieve scanning coverage of the PCB board in the front, back, left, and right directions. With the original second drive component 32 of the transfer module 31, the detection device 20 only needs to be set to move in one direction, which can reduce the setting cost of the detection device 20 and reduce the space occupied by the detection device 20.

[0039] The first driving component 21 may include a detection driving component 211 and a second track component 212. The second track component 212 extends along a first direction. The detection driving component 211 drives the detection body 22 to slide along the second track component 212, so as to realize the reciprocating sliding of the detection body 22 along the first direction.

[0040] Optionally, the detection body 22 is configured as a contour scanner, which is used to scan the three-dimensional contour of the PCB board. The contour scanner can be one or more of a 3D linear scanning camera, a laser contour meter, or a 3D line laser contour sensor. The testing machine 100 also includes a control device electrically connected to the contour scanner. The contour scanner is used to acquire the three-dimensional contour data of the PCB board, and the control device is used to compare the PCB board three-dimensional contour data acquired by the contour scanner with pre-stored data in a database to determine whether the quality of the components on the PCB board is qualified and whether there is a floating phenomenon caused by poor insertion.

[0041] like Figure 2 As shown, in one embodiment, the transplanting module 31 includes a first conveying member 311 and a first transplanting driving member 312 that is connected to the first conveying member 311. The first conveying member 311 is used to place the PCB board, and the first transplanting driving member 312 is used to drive the first conveying member 311 to convey the PCB board along a first direction.

[0042] The transplanting module 31 has a first docking position 30a that docks with the input side of the testing device 10. The transplanting module 31 is used to move the PCB board into the testing device 10 along a first direction through the first conveyor 311 when in the first docking position 30a.

[0043] The first conveyor 311 can be configured as a conveyor chain, and the transfer module 31 can also include two support frames 313 arranged at intervals along the second direction. Each support frame 313 is provided with a conveyor chain extending along the first direction. The top surfaces of the two conveyor chains constitute the conveying surface of the first conveyor 311 for placing the PCB board. The first transfer drive 312 can be configured as a motor. The motor is used to drive the two conveyor chains to operate simultaneously and convey the PCB board placed on the conveying surface along the first direction. When the transfer module 31 is in the first docking position 30a with the input side of the test device 10, the first transfer drive 312 can drive the two conveyor chains to operate simultaneously and move the PCB board placed on the conveying surface into the test device 10 along the first direction. Thus, the transfer module 31 transfers the PCB board to the test device 10 through docking with the input side of the test device 10 and the drive of the first transfer drive 312 after docking.

[0044] To ensure that the PCB board is accurately moved into the testing area of ​​the testing device 10 for testing, such as... Figure 1 , Figure 3As shown, in one embodiment, the testing device 10 includes a first conveying component 11 and a testing body 12. The testing body 12 has a testing area. The first conveying component 11 is used to receive the PCB board conveyed by the transfer module 31 and transport the PCB board to the testing area.

[0045] In this design, one end of the first conveying component 11 is used to dock with the first conveyor 311, and the other end of the first conveying component 11 extends into the test area within the test body 12. The first conveying component 11 can be configured as a second conveyor and a second conveying drive to drive the second conveyor. The second conveyor can adopt the same conveyor chain structure as the first conveyor 311, and the two conveyor chains of the second conveyor can be arranged on both sides of the test area along the second direction, so that the PCB board can be conveyed to the test area between the two conveyor chains. In this way, the first conveying component 11 can dock with the first conveyor 311 to relay the PCB board. When the PCB board is moved into the test device 10, the first conveying component 11 can continue to convey the PCB board, so that the PCB board can be accurately moved into the test area.

[0046] The following section provides further details on how the test unit 12 performs electrical performance tests on the PCB board. Please refer to [link to relevant documentation]. Figure 3 In one embodiment, the test body 12 includes a test driver 121 and a test component 122. The test component 122 is disposed opposite to the test area along a third direction. The test driver 121 is used to drive the test component 122 to move closer to or away from the test area in order to perform electrical performance testing on the PCB board located in the test area. The first direction, the second direction, and the third direction are arranged intersecting each other.

[0047] The third direction can be vertical. The test piece 122 may include a substrate with several test units on it for docking with the components to be tested on the PCB board. When the PCB board moves to the test area, the test drive unit 121 drives the test piece 122 to move downward toward the PCB board, so that the test units on the substrate dock with the components to be tested on the PCB board to perform electrical performance testing on the PCB board. After the electrical performance testing of the PCB board is completed, the test drive unit 121 can drive the test piece 122 to move upward, so that the test units are separated from the components to be tested, thereby facilitating the unloading of the PCB board after the test is completed by the first conveying component 11.

[0048] like Figure 1 , Figure 3 , Figure 4As shown, in one embodiment, the testing machine 100 further includes a feeding device 40, which is used to convey defective PCB boards out of the testing machine. The transfer module 31 has a second docking position 30b that docks with the input side of the feeding device 40. The transfer module 31 is used to move defective PCB boards into the feeding device 40 along a first direction via the first conveyor 311 at the second docking position.

[0049] In the above embodiments, the unloading device 40 can be configured as a second conveying component. The second conveying component may include a third conveyor and a second conveying drive. The third conveyor may adopt the same conveyor chain structure as the first conveyor. The second conveying drive may be a motor. When the transplanting module 31 is in the second docking position 30b, one end of the third conveyor docks with one end of the first conveyor 311 of the transplanting module 31. The first conveyor 311 can move the PCB board with unqualified quality to the third conveyor. The second conveying drive then drives the third conveyor to run, remove the PCB board with unqualified quality, and unload the unqualified PCB board.

[0050] The defective PCBs may include those with substandard component quality and those that fail electrical performance testing. When the testing machine 100 detects substandard component quality in the PCB through the detection device 20, the transfer module 31 of the transfer device 30 moves directly to the second docking position 30b to transfer the substandard PCB into the unloading device 40 for unloading, without performing electrical performance testing on the PCB. When the testing machine 100 detects substandard electrical performance in the PCB through the testing device 10, the transfer module 31 moves to the first docking position 30a and docks with the first conveying component 11 of the testing device 10. The first conveying component 11 and the first conveying element 311 rotate in opposite directions, moving the tested and substandard PCB from the testing area to the transfer module 31. The transfer module 31 then moves to the second docking position 30b to transfer the substandard PCB into the unloading device 40 for unloading.

[0051] The following is a description of the overall layout of the test machine 100, such as... Figure 1 , Figure 4As shown, in one embodiment, the second drive component 32 includes a first track component 321 and a second transplant drive component 322. The first track component 321 extends along a second direction. The testing device 10 and the feeding device 40 are disposed on one side of the first track component 321 along a first direction. The detection device 20 is disposed opposite to the first track component 321 along a third direction. The second transplant drive component 322 is used to drive the transplant module 31 to reciprocate along the first track component 321 to reciprocate between the working area of ​​the detection device 20, the first docking position 30a, and the second docking position 30b. The first direction, the second direction, and the third direction are arranged intersecting each other.

[0052] In this invention, the first direction can be a front-back direction, the second direction can be a left-right direction, and the third direction can be a top-bottom direction. This arrangement allows the testing device 10 and the unloading device 40 to be positioned in front of or behind the first track member 321. The second transfer drive member 322 drives the transfer module 31 to move in the left-right direction. The detection device 20 can be positioned directly above the first track member 321, so that the working area of ​​the detection device 20 is within the moving range of the first track member 321. Thus, when the transfer module reciprocates in the left-right direction, it can move to the first docking position 30a, the second docking position 30b, and the working area of ​​the detection device 20, respectively. This facilitates the transfer of the PCB board between the detection device 20, the testing device 10, and the unloading device 40, enabling the PCB board to undergo component quality testing, electrical performance testing, and waste disposal.

[0053] like Figure 1 As shown, in one embodiment, the working area of ​​the detection device 20 at least partially overlaps with the first docking position 30a.

[0054] This configuration results in a shorter moving distance between the transplanting module 31 at the first docking position 30a and the test area of ​​the detection device 20, thereby shortening the length of the first track component 321 and preventing the overall length of the testing machine 100 in the left-right direction from increasing excessively due to the installation of the detection device 20.

[0055] Of course, in other embodiments, the working area of ​​the detection device 20 may be set to at least partially overlap with the second docking position 30b, or the working area of ​​the detection device 20 may be set to partially overlap with the first docking position 30a and partially overlap with the second docking position 30b, so that the setting of the detection device 20 will not affect the length setting of the original first track component 321, so that the length of the test machine 100 in the left and right direction will not increase due to the setting of the detection device 20, so that the test machine 100 can have the PCB board plug-in quality detection function without increasing the floor area of ​​the test machine 100.

[0056] Optionally, the testing device 10 is provided in two sets, and the unloading device 40 is located between the two testing devices 10. It is possible to set two sets of testing devices 10 to perform electrical performance tests on two PCB boards separately, thereby improving the testing efficiency of the testing machine 100 in performing electrical performance tests on the PCB boards. Alternatively, after performing electrical performance tests on the PCB boards using one set of testing devices 10, the PCB boards can be retested using another set of testing devices 10 to improve the accuracy of the PCB board electrical performance tests; no specific limitation is made here.

[0057] In addition, the testing machine 100 of this utility model also includes a barcode scanning device, which is set within the movable range of the transfer module 31. After the PCB board is loaded onto the transfer module 31, the transfer device 30 moves the PCB board to the scanning area of ​​the barcode scanning device, scans the PCB board to obtain the model information of the PCB board, and, according to the model of the PCB board, enables the testing device 10 to select the corresponding test piece 122 to perform electrical performance testing on the PCB board, and enables the detection body 22 to select the three-dimensional contour information of the corresponding PCB board model in the database as a comparison reference. In this way, the testing machine 100 can realize electrical performance testing of PCB boards of different models.

[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A testing machine, characterized in that, include: The testing device is used to perform electrical performance testing on a PCB board; A testing device is used to test the component quality of the PCB board before performing electrical performance testing on the PCB board; as well as A transfer device is used to load the PCB board and to transfer the PCB board between the working area of ​​the detection device and the testing device.

2. The testing machine as described in claim 1, characterized in that, The detection device includes a first driving component and a detection body. The first driving component is used to drive the detection body to reciprocate along a first direction. The transplanting device includes a second driving component and a transplanting module. The transplanting module is used to place a PCB board. The second driving component is used to drive the transplanting module to reciprocate along a second direction. The second direction and the first direction are intersected.

3. The testing machine as described in claim 2, characterized in that, The detection body is configured as a contour scanning component, which is used to scan the three-dimensional contour of the PCB board.

4. The testing machine as described in claim 2, characterized in that, The transplanting module includes a first conveyor and a first transplanting driver connected to the first conveyor. The first conveyor is used to place the PCB board, and the first transplanting driver is used to drive the first conveyor to transport the PCB board along a first direction. The transfer module has a first docking position that connects with the input side of the test device. The transfer module is used to move the PCB board into the test device along a first direction via the first conveyor when in the first docking position.

5. The testing machine as described in claim 4, characterized in that, The testing device includes a first conveying component and a testing body. The testing body has a testing area. The first conveying component is used to receive the PCB board conveyed by the transfer module and transport the PCB board to the testing area.

6. The testing machine as described in claim 5, characterized in that, The test body includes a test driver and a test piece. The test piece and the test area are arranged opposite each other along a third direction. The test driver is used to drive the test piece to move closer to or away from the test area to perform electrical performance testing on the PCB board located in the test area. The first direction, the second direction, and the third direction are arranged intersecting each other.

7. The testing machine as described in claim 4, characterized in that, The testing machine also includes a feeding device for conveying PCBs that fail to meet quality standards out of the testing machine. The transfer module has a second docking position that connects with the input side of the feeding device. The transfer module is used to move the PCBs that fail to meet quality standards into the feeding device along a first direction via the first conveyor when in the second docking position.

8. The testing machine as described in claim 7, characterized in that, The second driving component includes a first track component and a second transplanting driving component. The first track component extends along a second direction. The testing device and the unloading device are located on one side of the first track component along a first direction. The detection device is arranged opposite to the first track component along a third direction. The second transplanting driving component is used to drive the transplanting module to reciprocate along the first track component, so as to reciprocate between the working area of ​​the detection device, the first docking position, and the second docking position. The first direction, the second direction, and the third direction are arranged intersecting each other.

9. The testing machine as described in claim 8, characterized in that, The working area of ​​the detection device at least partially overlaps with the first docking position.

10. The testing machine as described in claim 8, characterized in that, The testing device is provided in two sets, and the feeding device is located between the two testing devices.

Images