Vacuum plate suction device for preventing plate falling

Abstract

The utility model discloses a kind of vacuum plate suction devices of preventing drop plate, including with vacuum air pipe connection's air path section bar, with the multiple first joint and second joint of air path section bar connection, with the vacuum chuck of first joint connection, with the multiple vacuum suction nozzle of second joint connection, connect the first electromagnetic valve of first joint and vacuum chuck, connect the second electromagnetic valve of second joint and vacuum suction nozzle, and control device, first electromagnetic valve and second electromagnetic valve with the control device electric connection.The vacuum plate suction device of preventing drop plate of the utility model, by combining use of vacuum tube chuck and suction nozzle, vacuum suction nozzle can make up the problem of chuck vacuum leakage due to the influence of surface component of circuit board, so as to prevent drop plate.

Description

Technical Field

[0001] This utility model relates to the technical field of printed circuit board processing equipment, specifically to a vacuum suction device for preventing board drop. Background Technology

[0002] In existing technologies, after online AOI (Automated Optical Inspection), PCBs are typically collected manually using adhesive strips. During this collection process, OK / NG sorting is not performed. After AI filtering, PCBs undergo online visual inspection (VRS), achieving a 100% re-inspection rate. Furthermore, the yield rate after AI filtering in online AOI is 80-90%. Therefore, the current PCB collection process is inefficient.

[0003] To improve board collection efficiency, existing technologies employ automated board collection devices. These devices utilize vacuum suction cups mounted on the end effector of a robotic arm to adhere and secure the circuit boards, thus completing the retrieval and storage process. However, existing technologies require adjusting the number of suction cups at the robotic arm's end effector to match the different sizes of the circuit boards. This necessitates designing multiple sets of vacuum suction cups based on the circuit board dimensions, leading to resource waste. Furthermore, the connection and operation of the air circuitry during vacuum suction cup replacement also impacts work efficiency. Additionally, the presence of components on the circuit board surface can easily cause vacuum leakage and board drop when the suction cups are adsorbing the board.

[0004] Therefore, it is necessary to provide a new vacuum suction plate device to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a vacuum suction device to prevent board from falling off. By combining a vacuum tube suction cup with a suction nozzle, the vacuum nozzle can compensate for the vacuum leakage problem caused by the influence of components on the surface of the circuit board, thereby preventing the board from falling off.

[0006] The technical solution of this utility model is:

[0007] A vacuum suction plate device for preventing plate drop includes an air passage profile connected to a vacuum pipe, a plurality of first connectors and second connectors connected to the air passage profile, a vacuum suction cup connected to the first connector, a plurality of vacuum nozzles connected to the second connector, a first solenoid valve connecting the first connector and the vacuum suction cup, a second solenoid valve connecting the second connector and the vacuum nozzles, and a control device, wherein the first solenoid valve and the second solenoid valve are electrically connected to the control device.

[0008] Furthermore, the vacuum suction cups are symmetrically distributed on both sides of the air passage profile.

[0009] Furthermore, the multiple vacuum nozzles are divided into several groups, symmetrically distributed on both sides of the air passage profile, and each group of vacuum nozzles is equipped with a corresponding second solenoid valve.

[0010] Furthermore, the first and second connectors are flexible connectors.

[0011] Compared with the prior art, the vacuum suction plate device for preventing the plate from falling off provided by this utility model has the following advantages:

[0012] I. The vacuum suction device for preventing board drop provided by this utility model connects each vacuum suction cup to the connector through a solenoid valve, enabling individual control of each vacuum suction cup. Therefore, the number of working vacuum suction cups can be selected according to the product size of the circuit board, making the application more flexible. At the same time, the vacuum nozzle is used in combination with the vacuum suction cup. The vacuum nozzle can compensate for the vacuum leakage problem of the suction cup caused by the influence of components on the surface of the circuit board, thereby preventing the board from falling off. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the vacuum suction plate device for preventing the plate from falling off, as described in this utility model. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, and to make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be further described below in conjunction with the accompanying drawings.

[0016] It should be noted that the descriptions of these embodiments are for the purpose of aiding understanding of the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] Please see Figure 1This is a structural schematic diagram of the vacuum suction plate device for preventing plate drop according to this utility model. The vacuum suction plate device of this utility model includes an air passage profile 11 connected to a vacuum pipe, multiple first connectors 12 and second connectors 13 connected to the air passage profile 11, a vacuum suction cup 14 connected to the first connector, multiple vacuum nozzles 15 connected to the second connector 13, a first solenoid valve 16 connecting the first connector and the vacuum suction cup, a second solenoid valve 17 connecting the second connector and the vacuum nozzle, and a control device (not shown), wherein the first solenoid valve 16 and the second solenoid valve 17 are electrically connected to the control device.

[0018] The air passage profile 11 can be made of aluminum, with one end open to connect to an external vacuum pipe. The vacuum pipe is a flexible hose, which is easy to move along with the air passage profile.

[0019] The first solenoid valve 16 and the second solenoid valve 17 are electrically connected to the control device and are controlled by the controller of the control device.

[0020] When the first solenoid valve is open, a vacuum is provided to the corresponding vacuum suction cup, which can then be used for suction. When the first solenoid valve is closed, the corresponding vacuum suction cup is disconnected from the vacuum circuit and cannot perform suction. By controlling the opening and closing of the first solenoid valve, each vacuum suction cup can be individually controlled. Therefore, the number of vacuum suction cups in operation can be selected according to the product size of the circuit board, making the application more flexible, saving resources, avoiding the tedious process of replacing vacuum suction devices, and improving work efficiency.

[0021] In this embodiment, the vacuum suction cups 14 are symmetrically distributed on both sides of the air passage profile 11, so that the points acting on the circuit board during suction are symmetrically distributed, and the suction action is more stable.

[0022] When electrical components are present at the location corresponding to the vacuum suction cup, vacuum leakage can easily occur, leading to the plate falling off. To solve this problem, this invention uses multiple vacuum nozzles 15 in conjunction with the vacuum suction cup 14. Specifically, the multiple vacuum nozzles 15 are connected to the air passage profile 51 via a second connector 13, and a second solenoid valve 17 connects the vacuum nozzles 15 to the air passage profile 11. The second solenoid valve 17 controls the opening and closing of the vacuum nozzles at different locations. Preferably, the multiple vacuum nozzles are divided into several groups, symmetrically distributed on both sides of the air passage profile, with each group of vacuum nozzles corresponding to a second solenoid valve.

[0023] In this embodiment, the first connector 12 and the second connector 13 are flexible connectors, which are easy to connect with suction cups and nozzles, and have the advantages of vibration reduction, noise reduction and compensation for pipeline displacement.

[0024] In this embodiment, the vacuum suction cup is circular in shape, and the adsorption area of ​​the vacuum tube suction cup is larger than the adsorption area of ​​the vacuum nozzle.

[0025] The vacuum suction device for preventing board drop provided by this utility model connects each vacuum suction cup to the connector via a solenoid valve, enabling individual control of each vacuum suction cup. Therefore, the number of working vacuum suction cups can be selected according to the product size of the circuit board, making the application more flexible. At the same time, the vacuum nozzle is used in combination with the vacuum suction cup. The vacuum nozzle can compensate for the vacuum leakage problem of the suction cup caused by the influence of components on the surface of the circuit board, thereby preventing the board from falling off.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A vacuum suction plate device for preventing plate drop, characterized in that, The device includes an air passage profile connected to a vacuum tube, a plurality of first and second connectors connected to the air passage profile, a vacuum suction cup connected to the first connector, a plurality of vacuum nozzles connected to the second connector, a first solenoid valve connecting the first connector and the vacuum suction cup, a second solenoid valve connecting the second connector and the vacuum nozzles, and a control device, wherein the first and second solenoid valves are electrically connected to the control device.

2. The vacuum suction plate device for preventing plate drop according to claim 1, characterized in that, The vacuum suction cups are symmetrically distributed on both sides of the air passage profile.

3. The vacuum suction plate device for preventing plate drop according to claim 1, characterized in that, The multiple vacuum nozzles are divided into several groups and symmetrically distributed on both sides of the air passage profile, and each group of vacuum nozzles is equipped with a corresponding second solenoid valve.

4. The vacuum suction plate device for preventing plate drop according to claim 1, characterized in that, The first and second connectors are flexible connectors.

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