Automatic function test and tray backflow integrated device for electric control circuit board

Abstract

The circuit board sorting device comprises a board receiving assembly, a conveying assembly and a sorting assembly, the board receiving assembly can receive circuit boards through other procedures, and the conveying assembly can convey a first tray bearing the circuit boards from a first position close to the board receiving assembly to a second position close to the sorting assembly; the sorting assembly is used for unloading the circuit boards from the first tray and sorting the circuit boards, and after unloading is completed, the conveying assembly can return and convey the first tray after the circuit boards are unloaded to a first position; the device further comprises a testing assembly which is located on one side of the conveying direction of the conveying assembly, and the first tray can automatically enter and exit from the testing assembly. The automation degree is high, the labor cost problem is solved, and the risks of machine collision caused by interference between the manipulator and the test cabinet are avoided. The device is reasonable in structural design, simple and convenient to operate, stable in performance and high in circuit board detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic control PCBA function testing, and in particular to an electronic control circuit board automatic function testing and tray reflow integrated device. Background Art

[0002] At present, the functional testing of circuit boards in the market is done by manually placing the PCBA board on the test fixture after scanning the code. This method is suitable for small batch testing or sample testing. It is simple to operate, but the labor cost is high and the efficiency is low. The second method is to use a mechanical arm to grab the circuit board and put it into each test machine. The mechanical arm directly placing the board is likely to cause interference between the arm and the test cabinet, resulting in the risk of collision.

[0003] As the global automotive industry accelerates its transformation towards electrification, networking, intelligence and sharing (referred to as the "new four trends"), the automotive electronics industry has ushered in unprecedented development opportunities. Therefore, a device is needed that can solve the above two problems at the same time to reduce labor costs and improve detection efficiency and safety. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: to provide an integrated device for automatic functional testing and tray reflow of electronically controlled circuit boards, and multiple test machines can be connected in series to solve the problems of high labor costs, low efficiency, and safety risks such as interference and collision with test machines when the robotic arm directly grabs the board for testing.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: An integrated device for automatic functional testing and tray reflow of electronically controlled circuit boards, comprising a board connection component, a conveying component, and a sorting component. The board connection component can receive circuit boards from other processes and convey the circuit boards to a first tray of the conveying component. The conveying component can convey the first tray carrying the circuit boards from a first position close to the board connection component to a second position close to the sorting component. The sorting component is used to unload the circuit boards from the first tray and sort the circuit boards. After the unloading is completed, the conveying component can reflow and convey the first tray after the unloaded circuit boards to the first position. The device also includes a test component, which is located on one side of the conveying direction of the conveying component, and the conveying component can convey the first tray carrying the circuit boards to the test component. After the test is completed, the test component can convey the first tray carrying the circuit boards back to the conveying component.

[0006] As an optimization, the conveying assembly includes a first elevator and a second elevator corresponding to the first position and the second position, and a first conveying chain and a second conveying chain distributed up and down are provided between the two elevators. The first elevator can convey the first pallet to the first conveying chain, and the first conveying chain conveys the first pallet to the second elevator. The second elevator can drive the first pallet to move downward and convey it to the second conveying chain. The second conveying chain conveys the first pallet back to the first elevator, and the first elevator drives the first pallet to move upward to complete the reflow of the first pallet.

[0007] As an optimization, the first elevator and the second elevator both include a lifting bracket, which is driven by a lifting chain driven by a motor. The lifting bracket is U-shaped, and a lifting conveyor belt is provided at the ends of its two support plates. The lifting conveyor belt is used to carry the first pallet and can convey the first pallet to the first conveyor chain.

[0008] As an optimization, the first conveying chain and the second conveying chain are both double-speed conveying chains, and the first conveying chain includes two parallel conveying chains with a spacing between the two conveying chains; a lifting and transverse movement mechanism corresponding to the test assembly is provided between the first elevator and the second elevator, and the lifting and transverse movement mechanism can pass through the spacing between the two conveying chains to lift the first pallet on the first conveying chain and transport the first pallet to the test assembly.

[0009] As an optimization, the lifting and transverse movement mechanism includes a lifting bracket driven up and down by a lifting cylinder, and the lifting bracket is U-shaped, with two support plates perpendicular to the conveying direction of the first pallet, and a transverse movement belt is provided at the end of the support plate, which is used to contact the first pallet and drive the first pallet to be conveyed to the test assembly; a blocking and limiting cylinder is also provided on the side opposite to the two support plates, which is used to block and limit the opposite ends of the first pallet.

[0010] As an optimization, the panel receiving assembly includes a panel receiving machine and a panel receiving robot. The panel receiving machine is provided with a first conveyor belt, and the first conveyor belt is provided with a second tray. The first conveyor belt can drive the second tray to move to receive circuit boards from other processes. After receiving the circuit boards, the first conveyor belt moves the second tray to a set position, and the panel receiving robot unloads the circuit boards from the second tray and transfers the circuit boards to the first tray.

[0011] As an optimization, the first tray and the second tray are both provided with detection holes capable of indicating the direction of the trays, and the first tray and the second tray are both provided with a plurality of limit blocks for limiting and fixing the circuit boards.

[0012] As an optimization, the sorting component includes a sorting robot and a plurality of sorting carrier plates. The sorting robot can unload the circuit boards from the first tray at the second position of the conveying component and place them into the corresponding sorting carrier plates.

[0013] As an optimization, the testing assembly includes three FCT testing machines, which are distributed along the conveying direction of the first pallet. The FCT testing machine has a circuit board detection chamber. A second conveying belt is provided in the circuit board detection chamber for receiving the first pallet and conveying the first pallet back to the conveying assembly after the detection is completed.

[0014] Compared with the prior art, this application has the following beneficial effects: The present invention, By using a special tray to carry the circuit board, the circuit board is loaded onto the first tray after being connected by the board connection assembly in the previous process, and the first tray automatically flows on the conveying assembly. The cooperation between the conveying assembly and the test assembly can realize the automatic entry and exit of the first tray in the test assembly, and complete the automatic test of the circuit board. After the test is completed, the circuit board is sorted according to the side view results of the circuit board through the sorting assembly. At the same time, the empty first tray is refluxed through the conveying assembly to complete the recycling of the first tray. The degree of automation is high, which solves the problem of labor cost and the risk of interference and collision between the manipulator and the test cabinet. The present invention has a reasonable structural design, simple and convenient operation, stable performance, and high circuit board detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the general assembly diagram of the present invention; Figure 2 It is a structural schematic diagram of the plate splicing machine in the present invention; Figure 3 It is a structural schematic diagram of the conveying component in the present invention; Figure 4 It is a structural schematic diagram of the first elevator in the present invention; Figure 5 It is a structural schematic diagram of the jacking and lateral movement mechanism in the present invention; Figure 6 It is a structural schematic diagram of the FCT testing machine in the present invention; Figure 7 It is a structural schematic diagram of the sorting component in the present invention; In the figure, 1 is the first pallet, 2 is the first elevator, 201 is the lifting bracket, 202 is the lifting chain, 203 is the lifting conveyor belt, 3 is the second elevator, 4 is the first conveyor chain, 5 is the second conveyor chain, 6 is the lifting and transverse movement mechanism, 601 is the lifting cylinder, 602 is the lifting bracket, 603 is the transverse movement belt, 7 is the plate receiving machine, 8 is the plate receiving robot, 9 is the first conveyor belt, 10 is the second pallet, 11 is the limit block, 12 is the sorting robot, 13 is the FCT testing machine, 14 is the detection chamber, and 15 is the second conveyor belt. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0017] For specific implementation: see Figure 1-Figure 7 , An embodiment of the present invention provides an integrated device for automatic functional testing of an electronically controlled circuit board and tray reflow, comprising a board receiving assembly, a conveying assembly, and a sorting assembly.

[0018] The board receiving assembly can receive circuit boards from other processes and convey the circuit boards to the first tray 1 of the conveying assembly. Specifically, the board receiving assembly includes a board receiving machine 7 and a board receiving robot 8. The board receiving machine 7 is provided with a first conveying belt 9, and a second tray 10 is provided on the first conveying belt 9. The first conveying belt 9 can drive the second tray 10 to move to receive circuit boards from other processes. After receiving the circuit boards, the first conveying belt 9 moves the second tray 10 to a set position, and the board receiving robot 8 unloads the circuit boards from the second tray 10 and transfers the circuit boards to the first tray 1.

[0019] The conveying assembly is capable of conveying the first tray 1 carrying the circuit board from a first position close to the board receiving assembly to a second position close to the sorting assembly. It also includes a testing assembly, which is located on one side of the conveying direction of the conveying assembly, and the conveying assembly is capable of conveying the first tray 1 carrying the circuit board to the testing assembly. After the test is completed, the testing assembly is capable of conveying the first tray 1 carrying the circuit board back to the conveying assembly. The testing assembly includes three FCT testing machines 13, which are distributed along the conveying direction of the first tray 1. The FCT testing machine 13 has a circuit board detection chamber 14, and a second conveying belt 15 is provided in the circuit board detection chamber 14 for receiving the first tray 1 and conveying the first tray 1 back to the conveying assembly after the test is completed. Specifically, the conveying assembly includes a first elevator 2 and a second elevator 3 corresponding to the first position and the second position, and a first conveying chain 4 and a second conveying chain 5 are provided between the two elevators, and the first elevator 2 can convey the first pallet 1 to the first conveying chain 4, and the first conveying chain 4 conveys the first pallet 1 to the second elevator 3, and the second elevator 3 can drive the first pallet 1 to move downward and convey it to the second conveying chain 5, and the second conveying chain 5 conveys the first pallet 1 back to the first elevator 2, and the first elevator 2 drives the first pallet 1 to move upward to complete the reflux of the first pallet 1. Wherein, the first elevator 2 and the second elevator 3 both include a lifting bracket 201, and the lifting bracket 201 is driven to rise and fall by a lifting chain 202 driven by a motor, and the lifting bracket 201 is U-shaped, and a lifting conveying belt 203 is provided at the ends of its two support plates, and the lifting conveying belt 203 is used to carry the first pallet 1 and can convey the first pallet 1 to the first conveying chain 4. The first conveying chain 4 and the second conveying chain 5 are both double-speed conveying chains, and the first conveying chain 4 includes two parallel conveying chains, and there is a gap between the two conveying chains; a lifting and transverse movement mechanism 6 corresponding to the test assembly is provided between the first elevator 2 and the second elevator 3, and the lifting and transverse movement mechanism 6 can pass through the gap between the two conveying chains to lift the first pallet 1 located on the first conveying chain 4, and convey the first pallet 1 to the test assembly. Specifically, the lifting and transverse movement mechanism 6 includes a lifting bracket 602 driven up and down by a lifting cylinder 601, and the lifting bracket 602 is U-shaped, and its two support plates are perpendicular to the conveying direction of the first pallet 1, and a transverse movement belt 603 is provided at the end of the support plate, which is used to contact with the first pallet 1 and drive the first pallet 1 to be conveyed to the test assembly; a blocking and limiting cylinder (not shown) is also provided on the opposite side of the two support plates, which is used to block and limit the opposite ends of the first pallet 1.

[0020] The first tray 1 and the second tray 10 are both provided with detection holes capable of indicating the tray direction, and the first tray 1 and the second tray 10 are both provided with a plurality of limit blocks 11 for limiting and fixing the circuit board. When the detection holes of the first tray 1 and the second tray 10 are not at the specified position, that is, the tray direction is wrong, an alarm signal can be issued through the detection system.

[0021] The sorting component is used to unload circuit boards from the first tray 1 and sort the circuit boards. After unloading is completed, the conveying component can return the first tray 1 with the unloaded circuit boards to the first position; specifically, the sorting component includes a sorting robot 12 and multiple sorting carriers. The sorting robot 12 can unload circuit boards from the first tray 1 at the second position of the conveying component and place them into the corresponding sorting carriers.

[0022] During operation, the first conveyor belt 9 of the board receiving machine 7 drives the second pallet 10 to move in the direction away from the conveying component to receive the circuit board from the previous process. The circuit board is fixed and limited on the second pallet 10 by the limit block 11 on the second pallet 10 to ensure that its position is accurately fixed. Then the first conveyor belt 9 drives the second pallet 10 to move in the direction close to the conveying component to the set position. The board receiving robot 8 receives the board signal from the board receiving machine 7, moves the suction cup to the board taking position, takes the board and places the circuit board on the first pallet 1 located on the first elevator 2, and fixes and limits it by the limit block 11 on the first pallet 1. Then the first elevator 2 is also provided with a conveying structure similar to the first conveyor belt 9 or the transverse belt 603, which moves the first pallet 1 to the first conveyor chain 4. The first conveyor chain 4 drives the first pallet 1 to move until it reaches the detection position. The FCT test machine 13 sends a board request signal, and the lifting cylinder 601 of the lifting and transverse movement mechanism 6 is actuated to make the transverse belt 603 It contacts the first tray 1 and blocks the action of the limit cylinder, blocks and limits the opposite ends of the first tray 1. After the first tray 1 is lifted to a certain height, the transverse belt 603 drives the first tray 1 into the circuit board detection chamber 14 of the test machine. The test machine detects the circuit board. After the detection is completed, the second conveyor belt 15 in the circuit board detection chamber 14 conveys the first tray 1 back to the conveying assembly, completing the automatic entry and exit of the circuit board in the test machine and the automatic test. The first tray 1 returned to the first conveyor chain 4 is further conveyed to the second elevator 3. The sorting robot receives the signal to remove the circuit board on the first tray 1, and places the circuit board on the designated sorting carrier plate according to the test result (OK / NG) of the test machine. The empty first tray 1 is driven by the second elevator 3 to descend and be conveyed to the second conveyor chain 5. The second conveyor chain 5 conveys the empty first tray 1 back to the first elevator 2, and then is driven by the first elevator 2 back to the first position to complete the tray reflow. During the conveying process of the circuit board, the circuit board enters the scanning position from the front end, scans the barcode, and uploads it to the MES for inspection. The barcode information and test status information are made into a data packet through the PLC and flow along with the circuit board. Every time it passes a detection position / blocking position, the data packet is passed together, so that the first tray 1 can automatically enter and exit between the double-speed chain and the test machine, and the circuit board is sent to the test machine for testing in an orderly manner, and returned to the double-speed chain assembly line from the test machine in an orderly manner. When it flows to the end to take the board, the sorting robot 12 of the sorting machine is notified to take it away.

[0023] In summary, the present invention adopts a special tray to carry the circuit board, so that the circuit board is loaded onto the first tray after the board is connected by the board connection assembly in the previous process, and the first tray automatically flows on the conveying assembly. The cooperation between the conveying assembly and the test assembly can realize the automatic entry and exit of the first tray in the test assembly to complete the automatic test of the circuit board. After the test is completed, the circuit board is sorted according to the side view results of the circuit board through the sorting assembly. At the same time, the empty first tray is refluxed through the conveying assembly to complete the recycling of the first tray. The degree of automation is high, which solves the problem of labor cost and the risk of interference and collision between the manipulator and the test cabinet. The present invention has a reasonable structural design, simple and convenient operation, stable performance, and high circuit board detection efficiency.

[0024] Although the embodiments of the present invention have been shown and described, it is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples of the present invention. The embodiments of the present invention do not constitute limitations on the present invention from any point of view.

Claims

1. An integrated device for automatic functional testing of electronic control circuit boards and tray reflow, characterized in that: The invention comprises a plate receiving assembly, a conveying assembly and a sorting assembly, wherein the plate receiving assembly can receive circuit boards from other processes and convey the circuit boards to a first tray of the conveying assembly, wherein the conveying assembly can convey the first tray carrying the circuit boards from a first position close to the plate receiving assembly to a second position close to the sorting assembly, wherein the sorting assembly is used to unload the circuit boards from the first tray and sort the circuit boards, and after the unloading is completed, the conveying assembly can return the first tray after the unloading of the circuit boards to the first position; and further comprises a testing assembly, wherein the testing assembly is located on one side of the conveying direction of the conveying assembly, and the conveying assembly can convey the first tray carrying the circuit boards to the testing assembly, and after the test is completed, the testing assembly can convey the first tray carrying the circuit boards back to the conveying assembly.

2. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 1, characterized in that: The conveying assembly includes a first elevator and a second elevator corresponding to the first position and the second position, and a first conveying chain and a second conveying chain distributed up and down are provided between the two elevators. The first elevator can convey the first pallet to the first conveying chain, and the first conveying chain conveys the first pallet to the second elevator. The second elevator can drive the first pallet to move downward and convey it to the second conveying chain. The second conveying chain conveys the first pallet back to the first elevator, and the first elevator drives the first pallet to move upward to complete the reflow of the first pallet.

3. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 2, characterized in that: The first elevator and the second elevator both include a lifting bracket, which is driven to lift by a lifting chain driven by a motor. The lifting bracket is U-shaped, and a lifting conveyor belt is provided at the ends of its two support plates. The lifting conveyor belt is used to carry the first pallet and can convey the first pallet to the first conveyor chain.

4. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 2, characterized in that: The first conveying chain and the second conveying chain are both double-speed conveying chains, and the first conveying chain includes two parallel conveying chains with a spacing between the two conveying chains; a lifting and transverse movement mechanism corresponding to the test assembly is provided between the first elevator and the second elevator, and the lifting and transverse movement mechanism can pass through the spacing between the two conveying chains to lift the first pallet on the first conveying chain and transport the first pallet to the test assembly.

5. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 4, characterized in that: The lifting and transverse movement mechanism includes a lifting bracket driven up and down by a lifting cylinder. The lifting bracket is U-shaped, and its two support plates are perpendicular to the conveying direction of the first pallet. A transverse movement belt is provided at the end of the support plate, which is used to contact the first pallet and drive the first pallet to be conveyed to the test assembly; a blocking and limiting cylinder is also provided on the side opposite to the two support plates, which is used to block and limit the opposite ends of the first pallet.

6. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 1, characterized in that: The panel receiving assembly includes a panel receiving machine and a panel receiving robot. The panel receiving machine is provided with a first conveyor belt, and the first conveyor belt is provided with a second tray. The first conveyor belt can drive the second tray to move to receive circuit boards from other processes. After receiving the circuit boards, the first conveyor belt moves the second tray to a set position, and the panel receiving robot unloads the circuit boards from the second tray and transfers the circuit boards to the first tray.

7. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 6, characterized in that: The first tray and the second tray are both provided with detection holes capable of indicating the direction of the trays, and the first tray and the second tray are both provided with a plurality of limiting blocks for limiting and fixing the circuit board.

8. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 1, characterized in that: The sorting assembly includes a sorting robot and a plurality of sorting carrier plates. The sorting robot can unload the circuit board from the first tray at the second position of the conveying assembly and place it into the corresponding sorting carrier plates.

9. The electronic control circuit board automatic function test and tray reflow integrated device according to claim 1, characterized in that: The test assembly includes three FCT test machines, which are distributed along the conveying direction of the first pallet. The FCT test machine has a circuit board detection chamber. A second conveyor belt is provided in the circuit board detection chamber for receiving the first pallet and conveying the first pallet back to the conveyor assembly after the detection is completed.

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