Intelligent equipment for PCBA burning test

Abstract

The utility model discloses intelligent equipment for a PCBA burning test. The intelligent equipment comprises supporting legs, a base is installed at the top ends of the supporting legs, a workbench is installed at the top end of the base, a frame is installed at the top end of the workbench, a door body is installed on the outer side of the frame, and a moving rod is installed at one end of the top end of the workbench. The moving rod is installed at the top end of the workbench, the tray feeding and discharging module body is composed of the feeding module, the belt moving module and the discharging module, untested PCBAs are placed in the trays, the trays can be placed in an overlapped mode and can be placed on thirty layers, the horizontal carriage air cylinder module and the jacking module are arranged on the two sides of the feeding module, the moving module moves to the feeding position, and the belt moving module moves to the discharging position. The jacking air cylinder ascends, the two sets of air cylinders on the two sides are combined, one tray is separated to the moving module every time, then the tray is moved to the middle position, the robot comes to take or place materials into the tray, and therefore the purpose that the compatibility of intelligent equipment for PCBA burning testing is improved is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA burning equipment, and particularly relates to an intelligent device for PCBA burning test. Background Art

[0002] Printed circuit board, also known as printed circuit board and printed wiring board, is often abbreviated as PCB in English. PCBA is the abbreviation of English Printed Circuit Board Assembly, that is to say, the whole process of PCB bare board through SMT component mounting or DIP plug-in is abbreviated as PCBA. The existing technologies mainly include two methods: off-line burning and on-line burning. The main differences between them lie in their operation methods, costs, production processes and applicable scenarios. Off-line burning is suitable for scenarios with high requirements for safety and stability, such as large-scale burning or situations with large data volume and long burning time. On-line burning, through an automatic fixture cooperating with an on-line burning device, changes relevant test programs, but does not require replacing the burner to achieve the scenarios of quickly switching machine types and cost saving.

[0003] The current intelligent devices for PCBA burning test can basically meet people's usage requirements, but there are still some problems, which are specifically described as follows:

[0004] 1. The problem that it is difficult for the intelligent device for PCBA burning test to improve compatibility. The compatibility of the off-line and on-line burning modes in the existing technology is insufficient and cannot meet the needs of the development of the times. In some production scenarios, such as the burning of automotive electronics and medical electronic products, it is necessary to achieve the safety, stability and personalized requirements of off-line burning, and at the same time, it is necessary to achieve the requirements of quickly switching machine types, flexible and low-cost automated production. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an intelligent device for PCBA burning test to solve the defect that it is difficult for the existing intelligent device for PCBA burning test to improve compatibility.

[0006] To solve the above technical problems, the utility model provides the following technical solution: An intelligent device for PCBA burning test, including feet;

[0007] A base is installed at the top end of the feet, a workbench is installed at the top end of the base, a frame is installed at the top end of the workbench, and a door body is installed on the outer side of the frame;

[0008] A conveying module is installed on one side of the top end of the workbench, a fixture is installed at one end of the top end of the workbench, a clamping mechanism is installed at the middle position of the top end of the workbench, and a flipping mechanism is installed on one side of the top end of the workbench;

[0009] One end of the top of the workbench is equipped with a feeding structure, which includes a tray, a loading module, a unloading module, a reinforcing bar, a fiber optic sensor, a double-axis cylinder, a positioning pin, a moving rod and a belt. The moving rod is installed at one end of the top of the workbench.

[0010] During use, first, the robot and the gripper module carry the PCBA to be tested. The manipulator is installed on the support base in the middle of the platform. The fourth axis is connected to the double-station gripper module. The purpose of the double-station is to improve the working efficiency of the manipulator. One set of grippers is for picking up materials. After rotation, the other set of grippers sends the untested materials in. The gripper module is connected to the robot through a flange and a connecting block. In order to reduce weight, grooves are dug in the relevant connecting blocks. An integrated vacuum system one-way valve is adopted, which has functions such as vacuum generation, breaking, and fidelity one-way valve, on-off and pressure switch. The vacuum system valve is connected to the suction cup. The suction cup is equipped with a buffer rod and is made of ESD material and can be quickly replaced.

[0011] Furthermore, one end of the base is provided with heat dissipation openings, which are arranged at equal intervals at one end of the base, and the heat dissipation openings can dissipate heat.

[0012] Furthermore, a blower is installed inside the base, and the blowers are symmetrically distributed about the central axis of the base. The operation of the blowers can dissipate heat.

[0013] Furthermore, a belt is installed on the outer side of the moving rod. A loading module is installed on one side of the top of the moving rod, and an unloading module is installed on the other side of the top of the moving rod. A fiber optic sensor is installed on the top of the loading module and the unloading module. A reinforcing bar is installed on the top of the fiber optic sensor. Trays are installed on the tops of the moving rod, the loading module and the unloading module. Positioning pins are installed at both ends of the tray. A double-axis cylinder is installed at the middle position of the moving rod. The main body of the tray loading and unloading module consists of a loading module, a belt moving module and an unloading module. Among them, the main body of the loading or unloading module consists of 4 L-shaped brackets, with one L-shaped bracket as the reference and the other three adjustable. The untested PCBA is placed in the tray, and the trays can be stacked, and up to thirty layers can be placed. There are horizontal drag plate cylinder modules and lifting modules on both sides of the loading module. The moving module moves to the loading position, and the lifting cylinder rises. Combining the actions of the two groups of cylinders on both sides, one tray is separated onto the moving module each time, and then the tray is moved to the middle position. The robot comes to pick or place materials into the tray. After finishing the placement of one tray of materials, it moves to the unloading position. Each time it is lifted once, under the action of the spring buckle below the unloading module, a tray stacking action is completed. The loading module prevents material jamming, and there are inclined top cylinders on both sides, so that the bottom tray can be smoothly separated.

[0014] Furthermore, sliding grooves are provided at both ends of the moving rod, and sliding blocks are provided at the bottom end of the tray. The moving rod and the tray form a sliding structure, and the tray can slide along the moving rod.

[0015] Furthermore, the clamping mechanism includes a support base, a robot, and a suction gripper module. The support base is installed at the middle position on the top of the workbench. A robot is installed on the top of the support base, and a suction gripper module is installed at the bottom of the robot. The robot and the suction gripper module are used to carry the PCBA under test. The manipulator is installed on the support base in the middle of the platform. The fourth axis is connected to the double-station suction gripper module. The purpose of the double-station is to improve the working efficiency of the manipulator. One set of suction grippers is for picking up materials. After rotation, the other set of suction grippers sends the untested materials in.

[0016] Furthermore, the flipping mechanism includes a solenoid valve, a carrier plate module, a support frame, a hub, a lifting cylinder, a rotating cylinder, and a finger cylinder. The support frame is installed on the top of the workbench. A lifting cylinder is installed on one side of the top of the support frame. A rotating cylinder is installed on the top of the lifting cylinder, and a finger cylinder is installed on one side of the rotating cylinder. A carrier plate module is installed on one side of the rotating cylinder. A solenoid valve is provided at one end of the carrier plate module. A hub is installed at one end of the support frame, which can perform flipping processing on the PCBA.

[0017] The intelligent equipment for PCBA burning test provided by the present utility model has the following advantages: A moving rod is installed at the top of the workbench. The tray loading and unloading module body consists of a loading module, a belt moving module, and an unloading module. The loading or unloading module body is composed of 4 L-shaped brackets, with one L-shaped bracket as the reference and the other three adjustable. The untested PCBA is placed in the tray, and the trays can be stacked, with up to thirty layers. There are horizontal drag plate cylinder modules and lifting modules on both sides of the loading module. The moving module moves to the loading position, and the lifting cylinder rises. With the combined action of the two groups of cylinders on both sides, one tray is separated onto the moving module each time, and then the tray is moved to the middle position. The robot comes to pick or place materials into the tray. After finishing the material placement of one tray, it moves to the unloading position. Each time it is lifted once, under the action of the spring buckle below the unloading module, a tray stacking action is completed. The loading module prevents material jamming, and there are inclined top cylinders on both sides, enabling the bottom tray to be smoothly separated. Additionally, reinforcing bars are installed on both sides of the L-shaped brackets, and two sets of opposed photoelectric sensors are installed at the bottom and one set of fiber optic sensors is installed at the top of the bracket to monitor the state of TRA overlap. The movement of the tray is driven by a servo motor to drive the belt to move to the loading, middle, and unloading positions. There are adjustable positioning pins on the tray mechanism to limit the edges of the tray, with two positioning pins on each side, and a sensor in the middle to detect whether there is a tray. On both sides are double-axis cylinders, combined with guide shafts and flange-type linear bearings to lift and lower the tray. The secondary positioning module plays a role in transfer positioning and buffering, overcoming the position deviation caused by the relative position accuracy between the corresponding slots of the PCBA in the tray and the robot grasping the PCBA. The core structure of the positioning system consists of a carrier plate, positioning columns, guide blocks, and small beans. The inner chamfer of the guide block and the positioning pins adopt two tapered round pins. The PCBA picked up by the manipulator is guided to the position in sequence through the guide block and the positioning pins. Additionally, a barcode scanner and a bracket are provided under the module, aiming to perform a barcode scan on the PCBA before sending it to the fixture. Through MES interaction, it is confirmed whether this PCBA is the one to be tested. If it is not the PCBA to be tested, the manipulator grabs it onto the NG production line. If it is the PCBA to be tested, it is grabbed onto the fixture, thereby achieving the purpose of improving the compatibility of the intelligent equipment for PCBA burning test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 is of the present utility model Figure 2 partial sectional enlarged structural schematic diagram at A in;

[0021] Figure 4Three-dimensional structural schematic diagram of the feeding structure of the present utility model;

[0022] Figure 5 Top view structural schematic diagram of the present utility model.

[0023] Explanation of the reference numerals in the figure: 1. Base; 2. Support feet; 3. Frame; 4. Door body; 5. Workbench; 6. Feeding structure; 601. Tray; 602. Loading module; 603. Unloading module; 604. Reinforcing bar; 605. Fiber optic sensor; 606. Double-axis cylinder; 607. Positioning pin; 608. Moving rod; 609. Belt; 7. Clamping mechanism; 701. Support base; 702. Robot; 703. Suction claw module; 8. Conveying module; 9. Fixture; 10. Fan; 11. Flipping mechanism; 1101. Solenoid valve; 1102. Carrier plate module; 1103. Support frame; 1104. Hub; 1105. Lifting cylinder; 1106. Rotary cylinder; 1107. Finger cylinder; 12. Heat dissipation port. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-5 , an embodiment provided by the present utility model: An intelligent device for PCBA programming and testing, including support feet 2.

[0026] A base 1 is installed at the top end of the support feet 2, and a heat dissipation port 12 is provided at one end of the base 1, and the heat dissipation ports 12 are arranged at equal intervals at one end of the base 1.

[0027] A workbench 5 is installed at the top end of the base 1, a frame 3 is installed at the top end of the workbench 5, and a door body 4 is installed outside the frame 3.

[0028] A fan 10 is installed inside the base 1, and the fans 10 are symmetrically distributed about the central axis of the base 1.

[0029] A conveying module 8 is installed on one side of the top end of the workbench 5, a fixture 9 is installed at one end of the top end of the workbench 5, and a clamping mechanism 7 is installed at the middle position of the top end of the workbench 5. The clamping mechanism 7 includes a support base 701, a robot 702 and a suction claw module 703. The support base 701 is installed at the middle position of the top end of the workbench 5, a robot 702 is installed at the top end of the support base 701, and a suction claw module 703 is installed at the bottom end of the robot 702.

[0030] Referring to the attached Figure 2 drawing and the attached Figure 5 As shown, the robot 702 and the gripper module 703 are used to carry the PCBA under test. The manipulator is installed on the middle support base 701 of the platform. The fourth axis is connected to the double-station gripper module 703. The purpose of the double-station is to improve the working efficiency of the manipulator. One set of grippers is for picking up materials. After rotation, the other set of grippers sends the untested materials in. The gripper module 703 is connected to the robot 702 through a flange and a connecting block. In order to reduce weight, grooves are dug in the relevant connecting blocks. An integrated vacuum system one-way valve is adopted, which has functions such as vacuum generation, breaking, and vacuum-preserving one-way valve, on-off, and pressure switch. The vacuum system valve is connected to the suction cup. The suction cup is equipped with a buffer rod and is made of ESD material and can be quickly replaced.

[0031] On one side of the top of the workbench 5, a flipping mechanism 11 is installed. The flipping mechanism 11 includes a solenoid valve 1101, a carrier plate module 1102, a support frame 1103, a hub 1104, a lifting cylinder 1105, a rotating cylinder 1106, and a finger cylinder 1107. The support frame 1103 is installed on the top of the workbench 5. On one side of the top of the support frame 1103, a lifting cylinder 1105 is installed. On the top of the lifting cylinder 1105, a rotating cylinder 1106 is installed. And on one side of the rotating cylinder 1106, a finger cylinder 1107 is installed. On one side of the rotating cylinder 1106, a carrier plate module 1102 is installed. At one end of the carrier plate module 1102, a solenoid valve 1101 is provided. At one end of the support frame 1103, a hub 1104 is installed.

[0032] Referring to the attached Figures 2-3 As shown, the flipping module mainly consists of a bottom plate, a carrier plate module 1102, three groups of cylinders, a lifting cylinder 1105, a rotating cylinder 1106, a finger cylinder 1107, and its control solenoid valve 1101, pneumatic accessories such as speed control valves, air pipes, etc., and a hub 1104. Its function is to turn over the tested PCBA. The execution action is that the robot 702 places the PCBA on the carrier plate, then the finger cylinder 1107 clamps the PCBA, then it is lifted to a high position and rotated 180 degrees, and finally lowered. The PCBA falls onto the carrier plate module 1102 again. The clever part is that the carrier plate module 1102 can adapt to the placement of the TOP and BOTTOM surfaces of the PCBA. The key point is that the position of clamping the PCBA should consider the center of gravity, and a silicone with a hardness of 50 - 60A is pasted on the contact area to ensure that the PCBA can be clamped without deforming the PCBA. The carrier plate is made of all-antistatic fiberboard, with adjustable guiding L-shaped blocks installed at the four corners and support PINs at the bottom.

[0033] At one end of the top of the workbench 5, a feeding structure 6 is installed. The feeding structure 6 includes a tray 601, a loading module 602, an unloading module 603, a reinforcing bar 604, a fiber optic sensor 605, a double-acting cylinder 606, a positioning pin 607, a moving rod 608 and a belt 609. The moving rod 608 is installed at one end of the top of the workbench 5. Chutes are provided at both ends of the moving rod 608. Sliders are provided at the bottom end of the tray 601. The moving rod 608 and the tray 601 form a sliding structure.

[0034] A belt 609 is installed on the outer side of the moving rod 608. A loading module 602 is installed on one side of the top of the moving rod 608. An unloading module 603 is installed on the other side of the top of the moving rod 608. A fiber optic sensor 605 is installed on the top of the loading module 602 and the unloading module 603. A reinforcing bar 604 is installed on the top of the fiber optic sensor 605. Trays 601 are installed on the tops of the moving rod 608, the loading module 602 and the unloading module 603. Positioning pins 607 are installed at both ends of the tray 601. A double-acting cylinder 606 is installed at the middle position of the moving rod 608.

[0035] Refer to Appendix Figure 2 and Appendix Figure 4As shown, a moving rod 608 is installed at the top of the workbench 5. The main body of the tray 601 loading and unloading module 603 is composed of a loading module 602, a belt 609 moving module, and an unloading module 603. Among them, the main body of the loading or unloading module 603 consists of four L-shaped brackets. Taking one L-shaped bracket as a reference, the other three are adjustable. The untested PCBA is placed in the tray 601. The trays 601 can be stacked, and thirty layers can be placed. There are horizontal drag plate cylinder modules and lifting modules on both sides of the loading module 602. The moving module moves to the loading position, and the lifting cylinder 1105 rises. With the combined action of the two groups of cylinders on both sides, one tray 601 is separated onto the moving module each time, and then the tray 601 is moved to the middle position. The robot 702 comes to pick or place materials into the tray 601. After completing the placement of one tray of materials, it moves to the unloading position. Each time it is lifted once, under the action of the spring buckle below the unloading module 603, an action of stacking the trays 601 is completed. The loading module 602 prevents material jamming. There are inclined top cylinders on both sides, and the bottommost tray 601 can be smoothly separated. In addition, reinforcing bars 604 are installed on both sides of the L-shaped brackets, and two sets of opposed photoelectric sensors are installed at the bottom and a set of fiber optic sensors 605 are installed at the top of the bracket to monitor the state of TRA overlap. The movement of the tray 601 is driven by a servo motor to drive the belt 609 to move to the loading, middle, and unloading positions. There are adjustable positioning pins 607 on its tray mechanism to limit the edges of the tray 601, with two positioning pins 607 on each side. There is a sensor in the middle to sense whether there is a tray 601. On both sides are double-axis cylinders 606. Combined with guide shafts and flange-type linear bearings, the tray is lifted and lowered. The secondary positioning module plays a role in transfer positioning and buffering. It overcomes the position deviation caused by the relative position accuracy between the corresponding slots of the PCBA in the tray 601 and the robot 702 grasping the PCBA. The core structure of the positioning system consists of a carrier plate, positioning columns, guide blocks, and small beans. The inner chamfer of the guide block and the positioning pin 607 adopt two tapered round pins. The PCBA picked up by the manipulator is guided to the position in sequence through the guide block and the positioning pin 607. In addition, a scanning gun and a bracket are provided under the module. Its purpose is to perform a barcode scan on the PCBA before sending it to the fixture 9. Through MES interaction, it is confirmed whether this PCBA is the one that needs to be tested. If it is not the PCBA that needs to be tested, the manipulator grabs it onto the NG assembly line. If it is the PCBA that needs to be tested, it is grabbed onto the fixture 9.

[0036] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An intelligent device for PCBA burning test, comprising a support foot (2); Features: A base (1) is installed at the top of the support leg (2), a workbench (5) is installed at the top of the base (1), a frame (3) is installed at the top of the workbench (5), and a door body (4) is installed on the outer side of the frame (3); A conveying module (8) is installed on one side of the top of the workbench (5), a fixture (9) is installed on one end of the top of the workbench (5), a clamping mechanism (7) is installed at the middle position of the top of the workbench (5), and a turning mechanism (11) is installed on one side of the top of the workbench (5); A material discharge structure (6) is installed at one end of the top of the workbench (5), and the material discharge structure (6) includes a tray (601), a loading module (602), a unloading module (603), a reinforcing strip (604), an optical fiber sensor (605), a dual-axis cylinder (606), a positioning pin (607), a moving rod (608) and a belt (609), and the moving rod (608) is installed at one end of the top of the workbench (5).

2. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: One end of the base (1) is provided with a heat dissipation opening (12), and the heat dissipation openings (12) are arranged at equal intervals at one end of the base (1).

3. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: A fan (10) is installed inside the base (1), and the fan (10) is symmetrically distributed about the central axis of the base (1).

4. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: A belt (609) is installed on the outer side of the moving rod (608), a loading module (602) is installed on one side of the top of the moving rod (608), and a unloading module (603) is installed on the other side of the top of the moving rod (608). Optical fiber sensors (605) are installed on the top of the loading module (602) and the unloading module (603), and a reinforcing strip (604) is installed on the top of the optical fiber sensor (605). Trays (601) are installed on the top of the moving rod (608), the loading module (602) and the unloading module (603), and positioning pins (607) are installed at both ends of the tray (601). A double-axis cylinder (606) is installed at the middle position of the moving rod (608).

5. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: Both ends of the moving rod (608) are provided with sliding grooves, and the bottom end of the tray (601) is provided with a sliding block, and the moving rod (608) and the tray (601) form a sliding structure.

6. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: The clamping mechanism (7) comprises a support base (701), a robot (702) and a suction claw module (703); the support base (701) is installed at the middle position of the top end of the workbench (5); the robot (702) is installed at the top end of the support base (701); and the suction claw module (703) is installed at the bottom end of the robot (702).

7. The intelligent equipment for PCBA burning test according to claim 1, characterized in that: The flip mechanism (11) comprises a solenoid valve (1101), a carrier module (1102), a support frame (1103), a hub (1104), a lifting cylinder (1105), a rotating cylinder (1106) and a finger cylinder (1107); the support frame (1103) is mounted on the top of a workbench (5); a lifting cylinder (1105) is mounted on one side of the top of the support frame (1103); a rotating cylinder (1106) is mounted on the top of the lifting cylinder (1105); and a finger cylinder (1107) is mounted on one side of the rotating cylinder (1106); a carrier module (1102) is mounted on one side of the rotating cylinder (1106); a solenoid valve (1101) is arranged at one end of the carrier module (1102); and a hub (1104) is mounted at one end of the support frame (1103).

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