Patch detection mechanism

Abstract

The utility model discloses a patch detection mechanism, and belongs to the field of patch detection, and the patch detection mechanism comprises a frame, the inner wall of the frame is fixedly provided with a conveying belt, the top of the frame is fixedly provided with a vertical rod, the outer edge of the vertical rod is slidably connected with a rubber block, the inner wall of the rubber block is slidably connected with a cross rod, and the cross rod is fixedly connected with the conveying belt. The outer side of the cross rod is fixedly connected with a fixing plate, the inner side of the fixing plate is fixedly provided with a barrier strip, the top of the frame is fixedly provided with a support, and the inner top of the support is fixedly provided with optical detection equipment. The sucking pump is driven to operate to generate suction force, the sucking disc is matched with the mechanical arm to suck defective PCBs after detection, the mechanical arm is driven to operate to transfer abnormal PCBs, the abnormal PCBs are stored in the inner wall position of the storage box, workers can conveniently treat the abnormal PCBs in a follow-up centralized mode, materials are taken in an adsorption mode, and the working efficiency is improved. And a material removing mechanism of a complex structure in an existing device is replaced, the material taking mode is simple and convenient, efficiency is high, and the equipment failure rate is low.

Description

Technical Field

[0001] This application relates to the field of patch testing technology, and more particularly to a patch testing mechanism. Background Technology

[0002] SMT (Surface Mount Technology) refers to a series of processes performed on a PCB (Printed Circuit Board). The main processing steps are: solder paste printing, component placement, reflow soldering, AOI (Optical Inspection) – repair, and board separation. After reflow soldering, the PCB is moved to the AOI equipment via a conveyor to inspect it and determine if it has any defects.

[0003] The patent with the published authorization announcement number CN113680674B describes an SMT chip inspection device that uses a rejection mechanism to remove non-compliant PCBs from the conveyor belt surface in a timely manner, reducing subsequent PCB sorting work. Although the above technical solution solves the technical problem of automatically rejecting non-conforming products, the rejection mechanism is relatively complex in design and the rejection method is not simple enough, which is not conducive to its widespread use. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a patch inspection mechanism, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: a patch inspection mechanism, comprising a frame, a conveyor belt fixedly installed on the inner wall of the frame, a vertical pole fixedly installed on the top of the frame, a rubber block slidably connected to the outer edge of the vertical pole, a crossbar slidably connected to the inner wall of the rubber block, a fixing plate fixedly connected to the outer side of the crossbar, a stop bar fixedly installed on the inner side of the fixing plate, a bracket fixedly installed on the top of the frame, an optical inspection device fixedly installed on the inner top of the bracket, a robotic arm fixedly installed on the top of the bracket, a gripping disk fixedly installed on the bottom of the robotic arm, a suction cup fixedly installed on the top of the gripping disk, one end of a suction tube fixedly connected to the outer side of the suction cup, and the other end of the suction tube fixedly connected to the output end of a vacuum pump.

[0006] In a preferred embodiment, the bottom of the frame is threaded with studs, and the bottom of the studs is fixedly connected with washers made of rubber. There are six studs and six washers, and the six studs and washers are symmetrically arranged at the bottom of the frame.

[0007] By adopting the above technical solution, the device can be placed stably on the ground, ensuring that the equipment above it will not shake during operation. At the same time, the exposed length of the stud can be adjusted by rotating the stud, which facilitates the adjustment of the distance between the frame and the pad, thus making it easier to place the device on uneven ground.

[0008] In a preferred embodiment, two lighting lamps are symmetrically fixedly installed on the inner top of the bracket, and the optical detection device is positioned between the two lighting lamps.

[0009] By adopting the above technical solution, illumination can be provided for optical inspection equipment, ensuring the clarity of the optical inspection equipment when performing optical inspection on PCBs, thereby improving the accuracy of the inspection.

[0010] In a preferred embodiment, the air pump is fixedly installed on the top of the gripping disk, and a controller is fixedly installed on the outside of the frame, with the controller and the air pump being electrically connected.

[0011] By adopting the above technical solution, the suction force generated by driving the air pump can be used with a suction cup and a robotic arm to adsorb and transfer defective PCBs after inspection. The material is picked up by adsorption, which replaces the complex material rejection mechanism and the material picking method is simple.

[0012] In a preferred embodiment, a tray is fixedly installed on the outside of the frame, and a storage box is placed on top of the tray.

[0013] By adopting the above technical solution, defective PCBs that can be picked up by suction cups and transferred by robotic arms can be stored on the inner wall of the storage box, making it convenient for staff to process them in a centralized manner later.

[0014] In a preferred embodiment, a warning light is fixedly installed on the outside of the frame, and the warning light, the controller, and the optical detection equipment are electrically connected, as are the controller and the robotic arm.

[0015] By adopting the above technical solution, when the optical inspection equipment detects an abnormality in a component, it will transmit a signal to the controller. The controller will then control the warning light to flash, which will facilitate the staff to inspect the abnormal PCB in a timely manner. At the same time, the controller will immediately issue an instruction to control the robot arm to move the abnormal PCB.

[0016] In a preferred embodiment, the top and outer sides of the rubber block are provided with insertion holes adapted to the size of the uprights and crossbars. The uprights and crossbars are inserted into the inner walls of the insertion holes, and the outer sides of the uprights are provided with slots communicating with the insertion holes.

[0017] By adopting the above technical solution, the connection between the crossbar and the upright can be realized by using the insertion hole. When the crossbar is pulled and slids on the inner wall of the insertion hole, the position of the fixing plate and the stop bar can be adjusted, which facilitates the limiting function of PCBs of different sizes and ensures that they can move in a straight line at the top of the conveyor belt.

[0018] In a preferred embodiment, the number of uprights, rubber blocks, crossbars, fixing plates, and stop bars are all four, and the four uprights, rubber blocks, crossbars, fixing plates, and stop bars are symmetrically arranged on both sides of the bracket.

[0019] By adopting the above technical solution, the PCB can be limited from both sides of the conveyor belt, thereby ensuring that the PCB can move in a straight line when entering and exiting the inner wall of the support for inspection.

[0020] The beneficial effects of this application are:

[0021] 1. This chip mounting inspection mechanism generates suction by driving an air pump, and uses a suction cup in conjunction with a robotic arm to adsorb defective PCBs after inspection. The robotic arm is then driven to transfer the defective PCBs and store them on the inner wall of a storage box for easy processing by staff later. This adsorption method replaces the complex rejection mechanism in existing devices, and the material handling method is simple, efficient, and has a low failure rate.

[0022] 2. This type of chip mounting inspection mechanism provides illumination for optical inspection equipment by setting up lighting, ensuring the clarity of the optical inspection equipment when performing optical inspection on PCBs, thereby improving the accuracy of the inspection. By pulling the crossbar to slide on the inner wall of the insertion hole, the position of the fixing plate and the stop bar can be adjusted, which facilitates the limiting function of PCBs of different sizes and ensures that they can move in a straight line at the top of the conveyor belt. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present application;

[0024] Figure 2 This is a three-dimensional structural diagram from another perspective of this application;

[0025] Figure 3 This is a partially enlarged structural schematic diagram of this application;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the support structure in this application.

[0027] The following are the labels in the diagram: 1. Frame; 2. Stud; 3. Pad; 4. Conveyor belt; 5. Upright pole; 6. Rubber block; 7. Crossbar; 8. Fixing plate; 9. Stop bar; 10. Bracket; 11. Optical inspection equipment; 12. Lighting lamp; 13. Robotic arm; 14. Gripping plate; 15. Suction cup; 16. Suction tube; 17. Air pump; 18. Pallet; 19. Storage box; 20. Warning light; 21. Controller. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0029] Reference Figure 1-4 A patch inspection mechanism includes a frame 1, a conveyor belt 4 fixedly installed on the inner wall of the frame 1, a vertical pole 5 fixedly installed on the top of the frame 1, a rubber block 6 slidably connected to the outer edge of the vertical pole 5, a crossbar 7 slidably connected to the inner wall of the rubber block 6, a fixing plate 8 fixedly connected to the outer side of the crossbar 7, a baffle 9 fixedly installed on the inner side of the fixing plate 8, a bracket 10 fixedly installed on the top of the frame 1, an optical inspection device 11 fixedly installed on the inner top of the bracket 10, a robot arm 13 fixedly installed on the top of the bracket 10, a gripping plate 14 fixedly installed on the bottom of the robot arm 13, a suction cup 15 fixedly installed on the top of the gripping plate 14, one end of a suction tube 16 fixedly connected to the outer side of the suction cup 15, and the other end of the suction tube 16 fixedly connected to the output end of a vacuum pump 17.

[0030] See Figure 1 The bottom of the frame 1 is threaded with studs 2, and the bottom of the studs 2 is fixedly connected with a pad 3. The pad 3 is made of rubber. There are six studs 2 and six pads 3, and the six studs 2 and six pads 3 are symmetrically arranged at the bottom of the frame 1, so that the device can be placed stably on the ground and the equipment above it will not shake during operation. At the same time, the length of the studs 2 exposed can be adjusted by rotating the studs 2, which makes it easier to adjust the distance between the frame 1 and the pad 3, and thus makes it easier to place the device on uneven ground.

[0031] See Figure 4 Two lighting lamps 12 are symmetrically fixedly installed on the inner top of the bracket 10. The optical inspection device 11 is positioned in the middle of the two lighting lamps 12, so that the optical inspection device 11 can be illuminated, ensuring the clarity of the optical inspection device 11 when performing optical inspection on the PCB, thereby improving the accuracy of the inspection.

[0032] See Figure 4The vacuum pump 17 is fixedly installed on the top of the gripping plate 14. The controller 21 is fixedly installed on the outside of the frame 1. The controller 21 and the vacuum pump 17 are electrically connected, so that the vacuum pump 17 is driven to run and generate suction. The suction cup 15 can be used in conjunction with the robot arm 13 to adsorb and transfer the PCB with defects after inspection. The material is picked up by adsorption, which replaces the complex structure of the rejection mechanism and the material picking method is simple.

[0033] See Figure 1 and Figure 2 A tray 18 is fixedly installed on the outside of the frame 1, and a storage box 19 is placed on the top of the tray 18. This allows the defective PCBs that can be picked up by the suction cup 15 and transferred by the robotic arm 13 to be stored on the inner wall of the storage box 19, making it convenient for staff to process them in a centralized manner later.

[0034] See Figure 1 , Figure 2 and Figure 4 A warning light 20 is fixedly installed on the outside of the frame 1. The warning light 20, the controller 21 and the optical inspection equipment 11 are electrically connected. The controller 21 and the robot arm 13 are also electrically connected. When the optical inspection equipment 11 detects an abnormal part, it will transmit a signal to the controller 21. The controller 21 will then control the warning light 20 to emit a flashing warning light, so that the staff can inspect the abnormal PCB in time. At the same time, the controller 21 will immediately issue a command to control the robot arm 13 to move the abnormal PCB.

[0035] See Figure 3 The top and outer sides of the rubber block 6 are provided with insertion holes that are adapted to the size of the uprights 5 and the crossbars 7. The uprights 5 and the crossbars 7 are inserted into the inner walls of the insertion holes. The outer sides of the uprights 5 are provided with slots that communicate with the insertion holes. The insertion holes can be used to connect the crossbars 7 and the uprights 5. When the crossbars 7 are pulled and slid along the inner wall of the insertion holes, the position of the fixing plate 8 and the stop bar 9 can be adjusted, which facilitates the limiting function of PCBs of different sizes and ensures that they can move in a straight line at the top of the conveyor belt 4.

[0036] See Figure 1 - Figure 3 There are four uprights 5, four rubber blocks 6, four crossbars 7, four fixing plates 8 and four stop bars 9. The four uprights 5, four rubber blocks 6, four crossbars 7, four fixing plates 8 and four stop bars 9 are symmetrically arranged on both sides of the bracket 10, so that the PCB can be limited from both sides of the conveyor belt 4, thereby ensuring that the PCB can move in a straight line when entering and exiting the inner wall of the bracket 10 for inspection.

[0037] Working Principle: First, the device can be placed at the usage location. By rotating the stud 2, the exposed length of the stud 2 can be adjusted, thus facilitating the adjustment of the distance between the frame 1 and the pad 3, making it easier to place the device on uneven ground. Then, the PCB to be inspected can be placed on top of the conveyor belt 4. The conveyor belt 4 then moves the PCB to a position below the optical inspection equipment 11 for inspection. The lighting 12 provides illumination for the optical inspection equipment 11, ensuring the clarity of the optical inspection equipment 11 when performing optical inspection on the PCB, thereby improving the accuracy of the inspection. After inspection, the PCB will move to the other side of the bracket 10. When an abnormal PCB is detected, a signal is transmitted to the controller 21, which then controls... Warning light 20 emits a flashing warning light, making it easier for staff to inspect abnormal PCBs in a timely manner. At the same time, controller 21 immediately issues a command to control robot arm 13 to transfer abnormal PCBs. Simultaneously, it can drive air pump 17 to generate suction and use suction cup 15 in conjunction with robot arm 13 to adsorb and transfer PCBs with defects after inspection, storing them on the inner wall of storage box 19 for easy processing by staff later. Material retrieval by adsorption replaces the complex structure of the rejection mechanism, and the material retrieval method is simple. By pulling the crossbar 7 to slide on the inner wall of the insertion hole, the position of fixing plate 8 and stop bar 9 can be adjusted, which can facilitate the limiting effect on PCBs of different sizes, ensuring that they can move in a straight line at the top of conveyor belt 4.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A patch inspection mechanism, comprising a frame (1), characterized in that, A conveyor belt (4) is fixedly installed on the inner wall of the frame (1). A pole (5) is fixedly installed on the top of the frame (1). A rubber block (6) is slidably connected to the outer edge of the pole (5). A crossbar (7) is slidably connected to the inner wall of the rubber block (6). A fixing plate (8) is fixedly connected to the outer side of the crossbar (7). A baffle (9) is fixedly installed on the inner side of the fixing plate (8). A bracket (10) is fixedly installed on the top of the frame (1). An optical detection device (11) is fixedly installed on the inner top of the bracket (10). A robot arm (13) is fixedly installed on the top of the bracket (10). A gripping disc (14) is fixedly installed on the bottom of the robot arm (13). A suction cup (15) is fixedly installed on the top of the gripping disc (14). One end of a suction tube (16) is fixedly connected to the outer side of the suction cup (15). The other end of the suction tube (16) is fixedly connected to the output end of a vacuum pump (17).

2. The patch inspection mechanism according to claim 1, characterized in that, The bottom of the frame (1) is threaded with studs (2), and the bottom of the studs (2) is fixedly connected with a pad (3). The pad (3) is made of rubber. There are six studs (2) and six pads (3), and the six studs (2) and six pads (3) are symmetrically arranged at the bottom of the frame (1).

3. The patch inspection mechanism according to claim 1, characterized in that, Two lighting lamps (12) are symmetrically fixedly installed on the inner top of the bracket (10), and the optical detection device (11) is located in the middle of the two lighting lamps (12).

4. The patch inspection mechanism according to claim 1, characterized in that, The air pump (17) is fixedly installed on the top of the gripping disk (14), and a controller (21) is fixedly installed on the outside of the frame (1). The controller (21) and the air pump (17) are electrically connected.

5. The patch inspection mechanism according to claim 1, characterized in that, A tray (18) is fixedly installed on the outside of the frame (1), and a storage box (19) is placed on the top of the tray (18).

6. The patch inspection mechanism according to claim 1, characterized in that, A warning light (20) is fixedly installed on the outside of the frame (1). The warning light (20), the controller (21) and the optical detection device (11) are electrically connected. The controller (21) and the robot (13) are also electrically connected.

7. The patch inspection mechanism according to claim 1, characterized in that, The top and outer sides of the rubber block (6) are provided with insertion holes that are adapted to the size of the upright (5) and the crossbar (7). The upright (5) and the crossbar (7) are inserted into the inner wall of the insertion hole. The outer side of the upright (5) is provided with a groove that communicates with the insertion hole.

8. The patch inspection mechanism according to claim 1, characterized in that, The number of uprights (5), rubber blocks (6), crossbars (7), fixing plates (8) and baffles (9) are all four, and the four uprights (5), rubber blocks (6), crossbars (7), fixing plates (8) and baffles (9) are symmetrically arranged on both sides of the bracket (10).

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