Circuit board testing system and testing method

Abstract

The present invention relates to a circuit board testing system and a testing method. It mainly includes a single-layer lifting conveyor, a rotating conveyor, a testing machine, a double-layer track conveyor, a transfer machine and a storage machine. The single-layer lifting conveyor is used to receive the circuit board to be tested and transport the circuit board to be tested downstream. The number of the rotating conveyors is several, and each rotating conveyor is sequentially arranged at intervals on the downstream side of the single-layer lifting conveyor. The two sides of each rotating conveyor are respectively provided with the rotating conveyor including a rotating lifting component and a straight-through lifting component. The rotating lifting component is used to receive the circuit board to be tested and transport the circuit board to be tested to the testing machine. The rotating lifting component is also used to receive the circuit board after the test is completed and transport the circuit board after the test is completed downstream. The straight-through lifting component is used to transport the circuit board to be tested and the circuit board after the test is completed downstream. The testing efficiency of the system of the present application is relatively high.

Description

Technical Field

[0001] The invention relates to the field of circuit board testing, and in particular to a circuit board testing system and a testing method. Background Art

[0002] After the circuit boards are produced, each circuit board needs to be tested. Traditional testing devices generally include a conveying mechanism and a testing mechanism. The conveying mechanism conveys the circuit board into the testing mechanism for testing. After the testing is completed, the conveying mechanism conveys the circuit board downstream. After this traditional testing device conveys the circuit board into the testing mechanism, the subsequent circuit boards to be tested cannot be conveyed and tested. It is necessary to wait until the previous circuit board is tested and conveyed away before the subsequent circuit board can be conveyed into the testing mechanism for testing. The detection efficiency of this testing device is relatively low. Summary of the invention

[0003] Based on this, a circuit board testing system is provided, which is beneficial to significantly improve the detection efficiency.

[0004] A circuit board testing system,

[0005] include:

[0006] A single-layer lifting conveyor is used to receive the circuit board to be tested and convey the circuit board to be tested downstream.

[0007] A rotating conveyor, wherein the number of the rotating conveyors is several, and each rotating conveyor is sequentially arranged at intervals on the downstream side of the single-layer lifting conveyor, and a test machine is arranged on both sides of each rotating conveyor, and the rotating conveyor comprises a rotating lifting assembly and a straight lifting assembly, wherein the rotating lifting assembly is used to receive the circuit board to be tested and convey the circuit board to be tested to the test machine, and the rotating lifting assembly is also used to receive the circuit board after the test and convey the circuit board after the test to the downstream, and the straight lifting assembly is used to convey the circuit board to be tested and the circuit board after the test to the downstream,

[0008] A testing machine, the testing machine is used to test the circuit board,

[0009] Double-layer track conveyor: a double-layer track conveyor is set between two adjacent rotating conveyors.

[0010] While the rotary lifting assembly conveys the circuit board to be inspected to the adjacent testing machine, the straight-through lifting assembly conveys another circuit board to be inspected conveyed from upstream or a circuit board that has been inspected conveyed from upstream to downstream.

[0011] In one embodiment, the rotary lifting assembly is arranged above the straight lifting assembly.

[0012] In one embodiment, it further comprises a guide frame body, on which a plurality of guide posts are arranged.

[0013] The rotary lifting assembly includes a first base, the first base is sleeved on each guide column, a screw lifting mechanism is also provided on the guide frame, the first base is connected to the screw lifting mechanism, a rotating platform is provided on the first base, a screw translation mechanism is provided on the rotating platform, the screw translation mechanism is connected to the first frame, a slide rail assembly is connected between the first frame and the rotating platform, and an upper belt conveyor track and a lower belt conveyor track with adjustable width are provided on the first frame.

[0014] The straight-through lifting assembly includes a second base, which is sleeved on each guide column. A cylinder lifting assembly is arranged on the guide frame body, and the second base is connected to the cylinder lifting assembly. An upper belt conveyor track and a lower belt conveyor track with adjustable width are arranged on the second base.

[0015] In one embodiment, the testing machine includes two layers of testing components arranged one above the other, and the testing components include a double-layer docking mechanism and a testing mechanism arranged on one side of the double-layer docking mechanism.

[0016] In one of the embodiments, a code scanning mechanism is provided on the double-layer docking mechanism.

[0017] In one of the embodiments, it also includes a cabinet, a bracket is provided in the cabinet, a slide rail assembly is provided on the bracket, the test mechanism is installed on the slide rail assembly, a push-pull cylinder connected to the test mechanism is provided on the bracket, and an inspection door is provided on the cabinet. When the inspection door is opened, the push-pull cylinder can push the test mechanism out of the cabinet.

[0018] In one embodiment, the testing mechanism includes: a supporting frame, a top frame, a mobile frame and a bottom frame, the top frame is arranged above the supporting frame, the rear end of the top frame is hinged to the rear end of the supporting frame, a supporting block is arranged at the front end of the supporting frame, the front end of the top frame is supported by the supporting block, a snap-fit ​​structure is arranged between the front end of the top frame and the supporting block, the mobile frame and the bottom frame are arranged in sequence below the supporting frame, a plurality of guide columns are arranged between the supporting frame and the bottom frame, the mobile frame is sleeved on the guide columns, and a lifting mechanism for driving the mobile frame to rise and fall is also arranged on the bottom frame, an upper mold is arranged on the top frame, a lower mold is arranged on the mobile frame, the lifting mechanism includes a transmission frame, a driving cylinder, a driving frame and a track block, the upper end of the transmission frame is connected to the mobile frame, the lower end of the transmission frame is arranged with a roller, and the bottom frame is arranged There is a second slide rail assembly, on which the driving frame is installed, and the driving frame is connected to a driving cylinder arranged on a base, and a plurality of track blocks are respectively arranged on both sides of the driving frame, and a track surface is arranged on the track block, and the track surface cooperates with the rollers on the transmission frame, and the track surface includes an inclined section and horizontal sections located at the upper and lower ends of the inclined section, and also includes a conveying mechanism for conveying circuit boards, and the conveying mechanism includes a left conveying module and a right conveying module, and the left conveying module is arranged on the supporting frame, and a second clearance through hole is arranged on the moving frame, and an extension frame is arranged on the base frame, and the upper end of the extension frame passes through the second clearance through hole, and the upper end of the extension frame is provided with a right conveying module, and the extension frame is arranged on the slide rail assembly, and the extension frame is also connected to a screw mechanism.

[0019] In one embodiment, the double-layer track conveyor includes an upper belt conveyor track and a lower belt conveyor track with adjustable width.

[0020] In one embodiment, it also includes a transfer machine, a qualified product storage machine, and a failed product storage machine.

[0021] The qualified product storage machine and the unqualified product storage machine are both arranged on one side of the transfer machine.

[0022] The qualified product storage machine is used to receive and store the qualified products sent by the transfer machine.

[0023] The unqualified product storage machine is used to receive and store the unqualified products sent by the transfer machine.

[0024] In one embodiment, the transfer machine is arranged on one side of the last rotary conveyor.

[0025] In one embodiment, the transfer machine includes a transfer screw module, a product conveying track is arranged on the transfer screw module, a pushing module is arranged on the product conveying track, the qualified product storage machine includes a qualified product storage bin and a first lifting module connected to the qualified product storage bin, and the unqualified product storage machine includes an unqualified product storage bin and a second lifting module connected to the unqualified product storage bin.

[0026] A circuit board testing method, using the circuit board testing system,

[0027] The single-layer lifting conveyor receives the circuit board to be tested and conveys the circuit board to be tested to the rotating lifting assembly of the adjacent rotating conveyor. The rotating lifting assembly conveys the circuit board to be tested to the testing machine.

[0028] While the rotary lifting assembly conveys the circuit board to be tested to the adjacent testing machine, the straight lifting assembly conveys another circuit board to be tested conveyed from the upstream to the adjacent downstream double-layer track conveyor.

[0029] The double-layer track conveyor transports the received circuit boards to the adjacent rotary conveyor downstream.

[0030] If the test machines on both sides of one of the rotary conveyors are performing test operations, the rotary conveyor will continue to convey the received circuit boards to the downstream double-layer track conveyor.

[0031] The tested circuit boards are transported downstream in sequence by various rotary conveyors and various double-layer track conveyors.

[0032] The beneficial effects of this application are:

[0033] 1. The overall structure of the test system of the present application is compact, and high-efficiency detection can be achieved while occupying a small space.

[0034] 2. The present application is provided with a test machine on both sides of each rotary conveyor, so that the circuit boards to be tested can be transported to the test machines on both sides through one rotary conveyor, and the transport efficiency is high. At the same time, the rotary conveyor of the present application also has a straight-through lifting component. When the rotary lifting component is working, the straight-through lifting component can allow the circuit boards from upstream to pass directly without affecting the transportation of the circuit boards in the entire system. In this way, the circuit boards to be tested can be transported to the rotary lifting component of the idle rotary conveyor, and the circuit boards to be tested do not need to stop and wait, which can significantly improve the detection efficiency. Moreover, the straight-through lifting component of the rotary conveyor of the present application can also be used to transport the circuit boards that have been tested, without the need to set up a separate conveying mechanism, which makes the overall structure of the system simple.

[0035] 3. The present application is provided with an upper belt conveyor track and a lower belt conveyor track. This double-layer track setting is convenient for separately conveying the circuit boards to be inspected and the circuit boards that have been inspected, which is beneficial to improving the inspection efficiency and preventing the circuit boards to be inspected from interfering with each other with the circuit boards that have been inspected.

[0036] 4. The testing mechanism of the present application facilitates the replacement and repair of internal molds and components.

[0037] 5. This application can classify and store qualified circuit boards and unqualified circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of a circuit board testing system according to an embodiment of the present application.

[0039] Figure 2 It is a schematic diagram of a single-layer lifting conveyor according to an embodiment of the present application.

[0040] Figure 3 Schematic diagram of a rotary conveyor according to an embodiment of the present application.

[0041] Figure 4 A schematic diagram of a testing machine according to an embodiment of the present application.

[0042] Figure 5 This is a schematic diagram of an inspection door provided on a cabinet of a testing machine according to an embodiment of the present application.

[0043] Figure 6 Schematic diagram of a double-layer docking mechanism according to an embodiment of the present application.

[0044] Figure 7 A schematic diagram of a testing mechanism according to an embodiment of the present application.

[0045] Figure 8 This is a schematic diagram of a transmission frame being arranged on a mobile frame according to an embodiment of the present application.

[0046] Fig. 9 A schematic diagram of a lifting mechanism provided for a testing mechanism according to an embodiment of the present application.

[0047] Fig.10 It is a schematic diagram of a double-deck track conveyor according to an embodiment of the present application.

[0048] Fig.11 It is a schematic diagram of a transfer machine, a qualified product storage bin, and an unqualified product storage bin according to an embodiment of the present application.

[0049] in:

[0050] 100, single-layer lifting conveyor; 200, rotating conveyor; 300, testing machine; 400, double-layer track conveyor; 500, transfer machine; 600, qualified product storage machine; 700, unqualified product storage machine;

[0051] 101. Belt conveyor assembly;

[0052] 210, rotary lifting assembly; 220, straight lifting assembly; 230, guide column;

[0053] 2101, first base; 2102, lead screw lifting mechanism; 2103, rotating platform; 2104, lead screw translation mechanism; 2105, first frame; 2106, upper belt conveyor track; 2107, lower belt conveyor track;

[0054] 2201, second base; 2202, cylinder lifting assembly; 2203, upper belt conveyor track; 2204, lower belt conveyor track;

[0055] 310, double-layer connection mechanism; 320, testing mechanism; 330, cabinet; 331, inspection door; 340, bracket; 350, roller; 360, push-pull cylinder;

[0056] 3101, connecting lifting assembly; 3102, upper belt conveyor track; 3103, lower belt conveyor track;

[0057] 3201, support frame; 3202, top frame; 3203, mobile frame; 3204, bottom frame;

[0058] 3205, nitrogen telescopic rod; 3206, support block; 3207, buckle structure; 3208, upper mold fixture; 3209, lower mold fixture; 3210, transmission frame; 3211, driving cylinder; 3212, driving frame; 3213, track block; 3214, rotating wheel; 3213a, inclined section; 3213b, horizontal section; 3215, left conveying module; 3216, right conveying module; 3217, extension frame;

[0059] 410, upper belt conveyor track; 420, lower belt conveyor track;

[0060] 510, material pushing module; 520, transfer screw module; 530, product conveying track;

[0061] 610. Storage silo for qualified products; 710. Storage silo for unqualified products. DETAILED DESCRIPTION

[0062] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0063] like Figure 1 As shown, an embodiment of the present application provides a circuit board testing system, comprising:

[0064] Single-layer lifting conveyor 100, such as Figure 2 As shown, the single-layer lifting conveyor 100 is used to receive the circuit board to be tested and convey the circuit board to be tested downstream. The single-layer lifting conveyor 100 includes a belt conveyor assembly 101 and a lifting assembly for driving the belt conveyor assembly 101 to lift. The belt conveyor assembly 101 can be a belt conveyor mechanism driven by a motor;

[0065] The rotating conveyor 200, such as Figure 3 As shown, the number of the rotating conveyors 200 is several, and each rotating conveyor 200 is sequentially arranged at intervals on the downstream side of the single-layer lifting conveyor 100, and a test machine 300 is respectively arranged on both sides of each rotating conveyor 200. The rotating conveyor 200 includes a rotating lifting assembly 210 and a straight lifting assembly 220. The rotating lifting assembly 210 is used to receive the circuit board to be tested and convey the circuit board to be tested to the testing machine 300. The rotating lifting assembly 210 is also used to receive the circuit board after the test and convey the circuit board after the test to the downstream, and the straight lifting assembly 220 is used to convey the circuit board to be tested and the circuit board after the test to the downstream;

[0066] A testing machine 300, wherein the testing machine 300 is used to test a circuit board;

[0067] A double-layer track conveyor 400 is provided between two adjacent rotary conveyors 200;

[0068] While the rotary lifting assembly 210 delivers the circuit board to be tested to the adjacent testing machine 300 , the straight lifting assembly 220 delivers another circuit board to be tested delivered from upstream or a circuit board that has been tested delivered from upstream to downstream.

[0069] Specifically, the working process of the test system of the present application is as follows.

[0070] First, the single-layer lifting conveyor 100 rises to receive the circuit board to be tested conveyed by the upstream conveyor line.

[0071] Next, the single-layer lifting conveyor 100 descends and delivers the circuit board to be tested to the rotating lifting assembly 210 of the adjacent rotating conveyor 200, and then the single-layer lifting conveyor 100 rises to receive another circuit board to be tested. The rotating lifting assembly 210 delivers the circuit board to be tested to the test machine 300. It can be understood that the rotating lifting assembly 210 is also used to receive the tested circuit board output by the test machine 300. Here, the rotating lifting assembly 210 can rotate because the test machine 300 is set on both sides of the rotating lifting assembly 210, so the rotating lifting assembly 210 is optional. At the same time, since multiple layers of test components can be set in the test machine 300, the selected lifting assembly needs to have a lifting function to transport the circuit board to be tested to the test components on different layers.

[0072] It is understandable that when a certain rotary lifting assembly 210 is working and cannot receive the circuit board to be tested delivered from the upstream, the straight lifting assembly 220 will receive the circuit board to be tested delivered from the upstream and deliver the circuit board to be tested to the adjacent downstream double-layer track conveyor 400, and then the double-layer track conveyor 400 will deliver the circuit board to be tested to the adjacent downstream rotary lifting assembly 210. For example, when a certain rotary lifting assembly 210 delivers the circuit board to be tested to the tester 300, the straight lifting assembly 220 below the rotary lifting assembly 210 delivers another circuit board to be tested delivered from the upstream to the adjacent downstream double-layer track conveyor 400.

[0073] It can be understood that if the testing machines 300 on both sides of one of the rotating conveyors 200 are performing testing operations, the rotating conveyor 200 will continue to convey the received circuit board to be tested to the downstream double-layer track conveyor 400, and the double-layer track conveyor 400 will convey the circuit board to be tested to the downstream rotating conveyor 200, and so on.

[0074] It should be noted that the tested circuit boards are received by the rotary lifting components 210 of each rotary conveyor 200 and conveyed to the downstream double-layer track conveyor 400. The double-layer track conveyor 400 conveys the tested circuit boards to the straight lifting components 220 of the downstream rotary conveyor 200. The straight lifting components 220 then convey the tested circuit boards to the downstream double-layer track conveyor 400. That is, the tested circuit boards will be conveyed in sequence through each double-layer track conveyor 400 and the straight lifting components 220 until they enter the transfer machine 500. The transfer machine 500 classifies and conveys the tested circuit boards according to qualified and unqualified. The qualified circuit boards are sent to the qualified product storage machine 600, and the unqualified circuit boards are sent to the unqualified product storage machine 700.

[0075] In one embodiment, if Figure 3As shown, the rotary lifting assembly 210 is arranged above the straight lifting assembly 220. This arrangement saves floor space. The rotary lifting assembly 210 and the straight lifting assembly 220 do not interfere with each other. This is conducive to improving detection and transportation efficiency.

[0076] Based on the above, in one embodiment, if Figure 3 As shown, it also includes a guide frame body, on which a plurality of guide columns 230 are arranged, and the rotating lifting assembly 210 includes a first base 2101, which is sleeved on each guide column 230, and a screw lifting mechanism 2102 is also arranged on the guide frame body, and the first base 2101 is connected to the screw lifting mechanism 2102, and a rotating platform 2103 is arranged on the first base 2101, and a screw translation mechanism 2104 is arranged on the rotating platform 2103, and the screw translation mechanism 2104 is connected to the first frame 2105, and the first frame 2 A slide rail assembly is connected between 105 and the rotating platform 2103, an upper belt conveyor track 2106 and a lower belt conveyor track 2107 with adjustable width are arranged on the first frame 2105, the straight-through lifting assembly 220 includes a second base 2201, the second base 2201 is sleeved on each guide column 230, a cylinder lifting assembly 2202 is arranged on the guide frame, the second base 2201 is connected to the cylinder lifting assembly 2202, and an upper belt conveyor track 2203 and a lower belt conveyor track 2204 with adjustable width are arranged on the second base 2201.

[0077] Specifically, the upper belt conveyor track 2106 of the rotary lifting assembly 210 can be used to convey circuit boards to be tested, and the lower belt conveyor track 2107 of the rotary lifting assembly 210 can be used to convey circuit boards that have been tested. Similarly, the upper belt conveyor track 2203 of the straight lifting assembly 220 can be used to convey circuit boards to be tested, and the lower belt conveyor track 2204 of the straight lifting assembly 220 can be used to convey circuit boards that have been tested.

[0078] Specifically, the screw lifting mechanism 2102 is used to drive the first base 2101 to lift, and the rotating platform 2103 on the first base 2101 is used to rotate to change the conveying direction of the upper belt conveyor track 2106 and the lower belt conveyor track 2107 on the first frame 2105. The specific setting method of the upper belt conveyor track 2106 and the lower belt conveyor track 2107 with adjustable width is: the upper belt conveyor track 2106 and the lower belt conveyor track 2107 are set on a fixed plate, and the upper belt conveyor track 2106 and the lower belt conveyor track 2107 are also set on a movable plate, and the movable plate can be connected to the screw mechanism. By adjusting the distance between the movable plate and the fixed plate, the width of the upper belt conveyor track 2106 and the width of the lower belt conveyor track 2107 can be adjusted.

[0079] Specifically, the cylinder lifting assembly 2202 is used to drive the second base 2201 to rise and fall. Since both the first base 2101 and the second base 2201 can rise and fall, the upper and lower spaces can be fully utilized to transport the circuit board.

[0080] In one embodiment, if Figure 4 As shown, the testing machine 300 includes two layers of testing components arranged up and down, and the testing components include a double-layer docking mechanism 310 and a testing mechanism 320 arranged on one side of the double-layer docking mechanism 310, and a code scanning mechanism is arranged on the double-layer docking mechanism 310.

[0081] It is understandable that the test machine 300 may also include one layer, three layers or other layers of test components. Figure 6 As shown, the double-layer docking mechanism 310 may include a docking lifting component 3101 and an upper belt conveyor track 3102 and a lower belt conveyor track 3103 with adjustable widths arranged on the docking lifting component 3101. The upper belt conveyor track 3102 may be used to convey circuit boards to be tested, and the lower belt conveyor track 3103 may be used to convey circuit boards that have been tested. The code scanning mechanism may be composed of a code scanning gun installed on a two-dimensional mobile module. The code scanning gun is used to obtain the coded information on the circuit board.

[0082] Based on the above, in one embodiment, if Figure 4 and Figure 5As shown, the testing machine 300 also includes a cabinet 330, a bracket 340 is arranged in the cabinet 330, a slide rail assembly is arranged on the bracket 340, a roller 350 is arranged at the end of the slide rail assembly, the testing mechanism 320 is installed on the slide rail assembly and cooperates with the roller 350, a push-pull cylinder 360 connected to the testing mechanism 320 is arranged on the bracket 340, and an inspection door 331 is arranged on the cabinet 330. When the inspection door 331 is opened, the push-pull cylinder 360 can push the testing mechanism 320 out of the cabinet 330.

[0083] Specifically, when maintenance is required, the maintenance door 331 is opened, and then the test mechanism 320 is pushed out of the cabinet 330 by the push-pull cylinder 360, so that it is convenient to repair the test mechanism 320 and also convenient to replace the fixture in the test mechanism 320.

[0084] Based on the above, in one embodiment, if Figures 7 to 9 As shown, the testing mechanism 320 includes: a support frame 3201, a top frame 3202, a mobile frame 3203 and a bottom frame 3204, wherein the top frame 3202 is arranged above the support frame 3201, the rear end of the top frame 3202 is hinged to the rear end of the support frame 3201, a nitrogen telescopic rod 3205 is arranged between the rear end of the top frame 3202 and the rear end of the support frame 3201, a support block 3206 is arranged at the front end of the support frame 3201, the front end of the top frame 3202 is supported by the support block 3206, and the front end of the top frame 3202 A snap-fit ​​structure 3207 is arranged between the support block 3206, and the movable frame 3203 and the base frame 3204 are arranged in sequence below the support frame 3201. A plurality of guide columns are arranged between the support frame 3201 and the base frame 3204. The movable frame 3203 is sleeved on the guide columns. The base frame 3204 is also provided with a lifting mechanism for driving the movable frame 3203 to rise and fall. An upper mold fixture 3208 is arranged on the top frame 3202, and a lower mold fixture 3209 is arranged on the movable frame 3203. The lifting mechanism includes a transmission frame 3210, a driving cylinder 3211, a driving frame 3212 and a track block 3213. The upper end of the transmission frame 3210 is connected to the moving frame 3203, and the lower end of the transmission frame 3210 is provided with a rotating wheel 3214. The bottom frame 3204 is provided with a second slide rail assembly, and the driving frame 3212 is installed on the second slide rail assembly. The driving frame 3212 is connected to the driving cylinder 3211 provided on the base, and multiple track blocks 3213 are respectively provided on both sides of the driving frame 3212. The track block 3213 is provided with a track surface, and the track surface cooperates with the rotating wheel 3214 on the transmission frame 3210. The track surface includes an inclined section 3213a and horizontal sections 3213b located at the upper and lower ends of the inclined section 3213a.

[0085] On the basis of the above, the testing mechanism 320 also includes a conveying mechanism for conveying circuit boards, which is used in conjunction with the above-mentioned double-layer docking mechanism 310. The conveying mechanism includes a left conveying module 3215 and a right conveying module 3216, the left conveying module 3215 is arranged on the supporting frame 3201, the moving frame 3203 is provided with a first clearance through hole, the bottom frame 3204 is provided with an extension frame 3217, the upper end of the extension frame 3217 passes through the first clearance through hole, the upper end of the extension frame 3217 is provided with a right conveying module 3216, the extension frame 3217 is arranged on the slide rail assembly, and the extension frame 3217 is also connected to the screw mechanism.

[0086] Specifically, after the buckle structure 3207 is unlocked, the top frame 3202 of the test mechanism 320 can be opened, which is convenient for replacing the upper mold fixture 3208 and the lower mold fixture 3209. The lifting mechanism has strong supporting force and runs quickly and smoothly. The driving cylinder 3211 can drive the driving frame 3212 to move horizontally and linearly, and the driving frame 3212 can drive the transmission frame 3210 to move up and down, thereby prompting the moving frame 3203 to move up and down. After the moving frame 3203 rises, it can prompt the upper mold fixture 3208 and the lower mold fixture 3209 to close the mold. The circuit board to be tested is located between the upper mold fixture 3208 and the lower mold fixture 3209. After closing the mold, the circuit board can be tested.

[0087] In one embodiment, if Fig.10 As shown, the double-layer track conveyor 400 includes an upper belt conveyor track 410 with adjustable width and a lower belt conveyor track 420. The upper belt conveyor track 410 can be used to convey circuit boards to be tested, and the lower belt conveyor track 420 can be used to convey circuit boards that have been tested.

[0088] In one embodiment, if Fig.11 As shown, it also includes a transfer machine 500, a qualified product storage machine 600, and an unqualified product storage machine 700. The qualified product storage machine 600 and the unqualified product storage machine 700 are both arranged on one side of the transfer machine 500. The qualified product storage machine 600 is used for receiving and storing qualified products delivered by the transfer machine 500, and the unqualified product storage machine 700 is used for receiving and storing unqualified products delivered by the transfer machine 500.

[0089] Specifically, after receiving the circuit boards, the transfer machine 500 transports the qualified circuit boards to the qualified product stocker 600 for storage, and transports the unqualified circuit boards to the unqualified product stocker 700 for storage, according to the inspection results.

[0090] In one embodiment, the transfer machine 500 is arranged on one side of the last rotary conveyor 200. That is, the circuit boards sent out by the rotary conveyor 200 directly enter the transfer machine for classification and transportation.

[0091] On the basis of the above, in one embodiment, the transfer machine 500 includes a transfer screw module 520, on which a product conveying track 530 is provided, and on which a pusher module 510 is provided, the pusher module 510 is used to assist in pushing the circuit board forward, and the pusher module 510 may be composed of a mobile module and a pusher arm provided on the mobile module. The qualified product storage machine 600 includes a qualified product storage bin 610 and a first lifting module connected to the qualified product storage bin 610, and the unqualified product storage machine 700 includes an unqualified product storage bin 710 and a second lifting module connected to the unqualified product storage bin 710.

[0092] Specifically, the first lifting module drives the qualified product storage bin 610 to lift and lower to sequentially receive qualified circuit boards, and the second lifting module drives the unqualified product storage bin 710 to lift and lower to sequentially receive unqualified circuit boards.

[0093] The embodiment of the present application also provides a circuit board testing method, using the circuit board testing system,

[0094] The single-layer lifting conveyor 100 receives the circuit board to be tested and conveys the circuit board to be tested to the rotary lifting assembly 210 of the adjacent rotary conveyor 200. The rotary lifting assembly 210 conveys the circuit board to be tested to the testing machine 300.

[0095] While the rotary lifting assembly 210 conveys the circuit board to be tested to the adjacent testing machine 300, the straight lifting assembly 220 conveys another circuit board to be tested conveyed from the upstream to the adjacent downstream double-layer track conveyor 400.

[0096] The double-layer track conveyor 400 conveys the received circuit board to be tested to the downstream adjacent rotary conveyor 200.

[0097] If the test machines 300 on both sides of one of the rotary conveyors 200 are performing test operations, the rotary conveyor 200 will continue to convey the received circuit board to be tested to the double-layer track conveyor 400 downstream.

[0098] The tested circuit boards are sequentially conveyed downstream by the rotary conveyors 200 and the double-layer track conveyors 400 .

[0099] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A circuit board testing system, include: A single-layer lifting conveyor is used to receive the circuit board to be tested and convey the circuit board to be tested downstream. A rotating conveyor, wherein the number of the rotating conveyors is several, and each rotating conveyor is sequentially arranged at intervals on the downstream side of the single-layer lifting conveyor, and a test machine is arranged on both sides of each rotating conveyor, and the rotating conveyor comprises a rotating lifting assembly and a straight lifting assembly, wherein the rotating lifting assembly is used to receive the circuit board to be tested and convey the circuit board to be tested to the test machine, and the rotating lifting assembly is also used to receive the circuit board after the test and convey the circuit board after the test to the downstream, and the straight lifting assembly is used to convey the circuit board to be tested and the circuit board after the test to the downstream, A testing machine, the testing machine is used to test the circuit board, Double-layer track conveyor: a double-layer track conveyor is set between two adjacent rotating conveyors. The rotary lifting assembly delivers the circuit board to be tested to the adjacent test machine, while the straight lifting assembly delivers another circuit board to be tested delivered from upstream or a circuit board that has been tested delivered from upstream to downstream; the rotary lifting assembly is arranged above the straight lifting assembly; and further comprises a guide frame, on which a plurality of guide posts are arranged. The rotary lifting assembly includes a first base, the first base is sleeved on each guide column, a screw lifting mechanism is also provided on the guide frame, the first base is connected to the screw lifting mechanism, a rotating platform is provided on the first base, a screw translation mechanism is provided on the rotating platform, the screw translation mechanism is connected to the first frame, a slide rail assembly is connected between the first frame and the rotating platform, and an upper belt conveyor track and a lower belt conveyor track with adjustable width are provided on the first frame. The straight-through lifting assembly includes a second base, which is sleeved on each guide column. A cylinder lifting assembly is arranged on the guide frame body, and the second base is connected to the cylinder lifting assembly. An upper belt conveyor track and a lower belt conveyor track with adjustable width are arranged on the second base.

2. The circuit board testing system according to claim 1, characterized in that: The testing machine comprises two layers of testing components arranged one above the other, and the testing components comprise a double-layer docking mechanism and a testing mechanism arranged on one side of the double-layer docking mechanism.

3. The circuit board testing system according to claim 2, characterized in that: It also includes a cabinet, a bracket is arranged in the cabinet, a slide rail assembly is arranged on the bracket, the test mechanism is installed on the slide rail assembly, a push-pull cylinder connected to the test mechanism is arranged on the bracket, and an inspection door is arranged on the cabinet. When the inspection door is opened, the push-pull cylinder can push the test mechanism out of the cabinet.

4. The circuit board testing system according to claim 1, characterized in that: The double-layer track conveyor comprises an upper belt conveying track and a lower belt conveying track with adjustable width.

5. The circuit board testing system according to claim 1, characterized in that: It also includes transfer machines, qualified product storage machines and unqualified product storage machines. The qualified product storage machine and the unqualified product storage machine are both arranged on one side of the transfer machine. The qualified product storage machine is used to receive and store the qualified products sent by the transfer machine. The unqualified product storage machine is used to receive and store the unqualified products sent by the transfer machine.

6. The circuit board testing system according to claim 5, characterized in that: The transfer machine is arranged on one side of the last rotary conveyor.

7. The circuit board testing system according to claim 5, characterized in that: The transfer machine includes a transfer screw module, a product conveying track is arranged on the transfer screw module, a pushing module is arranged on the product conveying track, the qualified product storage machine includes a qualified product storage bin and a first lifting module connected to the qualified product storage bin, and the unqualified product storage machine includes an unqualified product storage bin and a second lifting module connected to the unqualified product storage bin.

8. A circuit board testing method, characterized in that: A circuit board testing system according to any one of claims 1 to 7, The single-layer lifting conveyor receives the circuit board to be tested and conveys the circuit board to be tested to the rotating lifting assembly of the adjacent rotating conveyor. The rotating lifting assembly conveys the circuit board to be tested to the testing machine. While the rotary lifting assembly conveys the circuit board to be tested to the adjacent testing machine, the straight lifting assembly conveys another circuit board to be tested conveyed from the upstream to the adjacent downstream double-layer track conveyor. The double-layer track conveyor transports the received circuit boards to the adjacent rotary conveyor downstream. If the test machines on both sides of one of the rotary conveyors are performing test operations, the rotary conveyor will continue to convey the received circuit boards to the downstream double-layer track conveyor. The tested circuit boards are transported downstream in sequence by various rotary conveyors and various double-layer track conveyors.

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