AOI (automatic optical inspection) device for PCB (printed circuit board)

Abstract

The AOI detection device of the PCB comprises a support assembly, and material carrying assemblies are arranged on the outer walls of the two sides of the top of the support assembly. When PCBs are produced in a workshop, the conveying belt can convey the produced PCBs to the material carrying assembly, then the lifting air cylinder can be started, the positions of the electric suction cups are lowered, the electric suction cups make contact with the PCBs on the conveying belt, then the started electric suction cups can adsorb the PCBs, and then the lifting air cylinder can be started again. According to the PCB conveying device, the driving motor is started to drive the mounting plate to lift the PCB adsorbed by the electric suction cup, then the driving motor is started to enable the lifting air cylinder to rotate on the mounting bearing, after the lifting air cylinder rotates for 180 degrees, the driving motor is suspended, the subsequent lifting air cylinder is started to enable the electric suction cup to drive the PCB to fall on the support assembly, feeding of the PCB is achieved, meanwhile, the other conveying assembly operates, and the PCB conveying efficiency is improved. When the PCB is detected, the detected PCB can be taken down, the blanking of the PCB is realized, the detection continuity of the equipment on the PCB is greatly enhanced, and the detection efficiency of the PCB is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of PCB board production, specifically to AOI detection device of PCB board. BACKGROUND

[0002] PCB, Chinese name is printed circuit board, also called printed wiring board, is an important electronic component, is the support body of electronic components, is the carrier of electrical interconnection of electronic components. Since it is made by electronic printing, it is called "printed" circuit board. AOI, namely automatic optical detection, is a detection process in PCB processing technology, AOI uses high-speed high-precision visual processing technology to automatically detect various different post installation errors and welding defects on PCB, and uses AOI as a tool to reduce defects to find and eliminate errors in the early stage of assembly process, so as to realize good process control.

[0003] The AOI detection device for PCB board provided by Chinese patent No. CN220983154U comprises a base, a conveyor belt, an AOI detection device, a rotating shaft, a brush and a motor, etc. The conveyor belt is arranged above the base, the AOI detection device is installed at the top rear side of the base, the rotating shaft is rotatably connected to the top front side of the base, the brush is fixedly connected to the rotating shaft, and the motor is installed at the left end of the front side of the conveyor belt. The utility model has the effect of cleaning the PCB board. When the conveyor belt moves, the PCB board moves with it, and the brush fixed above cleans the dust on the surface of the PCB board, thereby achieving the effects of cleaning the PCB board and effectively improving the detection results of the AOI detection device.

[0004] When using the AOI detection device to detect the PCB board, manual feeding and discharging are required, but the manual feeding and discharging speed is relatively slow, which affects the efficiency of the AOI detection device in detecting the PCB board. Therefore, there is an urgent need to design an AOI detection device for PCB board to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide an AOI detection device for PCB board to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an AOI detection device for PCB board, comprising a support assembly, the support assembly top two side outer walls are equipped with material moving assembly, the material moving assembly includes fixed frame, the fixed frame top one side outer wall is equipped with mounting bearing, the mounting bearing top is equipped with lifting cylinder, and the output end of the lifting cylinder is equipped with mounting plate, the mounting plate bottom two side outer walls are all screw thread connection with electric sucking disc, the fixed frame inner wall top one side is installed with driving motor through bolt, and the output end of the driving motor and the bottom end of the lifting cylinder are fixedly connected.

[0007] The mounting frame top two sides outer walls are provided with two mounting holes, the mounting frame inner wall top side is provided with a jacking cylinder through bolts, and the output end of the jacking cylinder is located in the mounting hole.

[0008] The mounting frame inner wall top center is provided with a rotating motor through bolts, the mounting frame top side center is provided with a clamp assembly through bearings, and the output end of the rotating motor is fixedly connected with the clamp assembly through a key.

[0009] The clamp assembly includes a rotating table, the rotating table top two sides outer walls are provided with two installation grooves, and the installation groove inner wall bottom two sides are provided with square holes, and the output end of the jacking cylinder is inserted into the square hole.

[0010] The installation groove inner wall two sides are provided with connecting springs through bolts, the installation groove is slidably connected with a clamping block, and the clamping block is connected with one end of the connecting spring through bolts, and the clamping block one side outer wall and the installation groove inner wall two sides are provided with magnetic blocks through bolts.

[0011] The rotating table is provided with four oil storage cavities, and two connecting cavities are arranged between the oil storage cavities and the installation grooves.

[0012] The rotating table top two sides outer walls are provided with two screw rod motors through bolts, and the output end of the screw rod motor is threadedly connected with the piston plate.

[0013] The bracket assembly top two sides outer walls are provided with a detection assembly through bolts, the detection assembly includes a box frame, the box frame inner wall side is embedded with a detection module through bolts, and the box frame one side outer wall is embedded with a control screen through bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This invention utilizes a material handling assembly. During PCB board production in the workshop, the conveyor belt transports the finished PCB boards to the material handling assembly. Then, a lifting cylinder activates, causing an electric suction cup to descend and contact the PCB board on the conveyor belt. The suction cup then adheres to the PCB board. The lifting cylinder then activates again, causing the mounting plate, carrying the PCB board held by the suction cup, to rise. The drive motor then starts, causing the lifting cylinder to rotate 180 degrees on the mounting bearing. After the drive motor pauses, the lifting cylinder restarts, causing the suction cup to drop the PCB board onto the support assembly, thus loading the PCB board. Simultaneously, another material handling assembly operates to remove inspected PCB boards, thus unloading them. This significantly enhances the efficiency of the equipment. The continuity of PCB board inspection improves the efficiency of PCB board inspection. Through the set fixture assembly, after the material handling assembly places the PCB board into the placement slot, the corresponding lead screw motor starts, and then the piston plate moves inside the oil reservoir, causing the hydraulic oil inside the reservoir to flow into the connecting cavity. Subsequently, the hydraulic oil inside the connecting cavity flows into the placement slot, causing the clamping blocks to slide inside the placement slot. This causes the two clamping blocks to move towards each other, allowing the fixture assembly to clamp PCB boards of different sizes. During inspection, the set lifting cylinder starts, and its output end moves inside the square hole and mounting hole, lifting the PCB board inside the placement slot and bringing it closer to the inspection module for better inspection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the support assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixture assembly structure of this utility model;

[0019] Figure 4 This is a top view of the rotating platform structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting frame structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the detection component structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the material handling component of this utility model.

[0023] In the figure: 1, support assembly; 2, detection assembly; 3, material moving assembly; 4, mounting frame; 5, clamp assembly; 6, jacking cylinder; 7, rotary table; 8, setting groove; 9, square hole; 10, screw motor; 11, clamping block; 12, oil storage cavity; 13, piston plate; 14, connecting cavity; 15, connecting spring; 16, magnetic block; 17, mounting hole; 18, rotary motor; 19, fixed frame; 20, driving motor; 21, mounting bearing; 22, lifting cylinder; 23, mounting plate; 24, electric suction cup; 25, box frame; 26, control screen; 27, detection module. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-7 The utility model provides a kind of technical solutions: a kind of PCB AOI detection device, including support assembly 1, support assembly 1 top two sides outer wall are all equipped with material moving assembly 3 by bolt, material moving assembly 3 includes fixed frame 19, fixed frame 19 top one side outer wall is equipped with mounting bearing 21 by bolt, mounting bearing 21 top is equipped with lifting cylinder 22 by bolt, lifting cylinder 22 model is preferably SC30*200, and the output end of lifting cylinder 22 is equipped with mounting plate 23 by bolt, the bottom two sides outer wall of mounting plate 23 is all equipped with electric suction cup 24 by screw thread, fixed frame 19 inner wall top one side is equipped with driving motor 20 by bolt, driving motor 20 model is preferably 57BYGH650-23, and the output end of driving motor 20 and the bottom end of lifting cylinder 22 are fixedly connected, under the control of control screen 26, lifting cylinder 22 will start, so that electric suction cup 24 position drops, and contacts with the PCB on conveying belt, then the electric suction cup 24 that starts will be adsorbed to PCB, and then lifting cylinder 22 will be started again, so that mounting plate 23 is lifted with the PCB that is adsorbed to electric suction cup 24, then driving motor 20 starts, will make lifting cylinder 22 rotate on mounting bearing 21, rotates one hundred and eighty degrees, driving motor 20 pauses, subsequent lifting cylinder 22 starts, will make electric suction cup 24 with PCB fall on support assembly 1, realizes the feeding of PCB.

[0026] The support assembly 1 comprises a mounting frame 4, two mounting holes 17 are formed in the outer walls on both sides of the top of the mounting frame 4, a jacking cylinder 6 is mounted on one side of the inner wall of the top of the mounting frame 4 through bolts, the model of the jacking cylinder 6 is preferably JTDX double-acting double-output cylinder, the jacking cylinder 6 is started, the output end of the jacking cylinder 6 moves inside the square hole 9 and the mounting hole 17, so that the output end of the jacking cylinder 6 lifts up the PCB board arranged in the placement groove 8, so that the PCB board is close to the detection module 27, so that the detection module 27 can better detect the PCB board, and the output end of the jacking cylinder 6 is located inside the mounting hole 17.

[0027] The mounting frame 4 is provided with a rotating motor 18 at the center of the top inner wall, the model of the rotating motor 18 is preferably 42BLF02, the rotating motor 18 is started, which drives the rotating table 7 to rotate around the mounting frame 4, so that the detection module 27 can detect the PCB board, a clamp assembly 5 is mounted on one side of the center of the top of the mounting frame 4 through a bearing, and the output end of the rotating motor 18 is fixedly connected with the clamp assembly 5 through a key.

[0028] The clamp assembly 5 comprises a rotating table 7, two placement grooves 8 are formed in the outer walls on both sides of the top of the rotating table 7, square holes 9 are formed in the inner walls on both sides of the bottom of the placement groove 8, the output end of the jacking cylinder 6 is inserted into the square hole 9, connecting springs 15 are mounted on both sides of the inner wall of the placement groove 8 through bolts, a clamping block 11 is slidably connected in the placement groove 8, one end of the clamping block 11 is connected with the connecting spring 15 through bolts, magnetic blocks 16 are mounted on both sides of the inner wall of the placement groove 8 through bolts, four oil storage cavities 12 are formed in the rotating table 7, the oil storage cavities 12 store hydraulic oil, two connecting cavities 14 are arranged between the oil storage cavities 12 and the placement groove 8, a piston plate 13 is slidably connected in the oil storage cavity 12, two lead screw motors 10 are mounted on the outer walls on both sides of the top of the rotating table 7 through bolts, the model of the lead screw motor 10 is preferably a linear lead screw motor 57, when the PCB board is clamped, the lead screw motor 10 is rotated forward, then the piston plate 13 moves in the oil storage cavity 12, so that the hydraulic oil in the oil storage cavity 12 flows into the connecting cavity 14, then the hydraulic oil in the connecting cavity 14 flows into the placement groove 8, so that the clamping block 11 slides in the placement groove 8, so that the two clamping blocks 11 move towards each other, so that the clamp assembly 5 clamps the PCB board of different sizes, and the clamping and limiting of the PCB board are realized, when detection, the corresponding lead screw motor 10 is reversed, the output end of the lead screw motor 10 lifts up the piston plate 13, then under the action of the tension of the connecting spring 15 and the same sex attraction of the magnetic block 16, the clamping block 11 is retracted into the placement groove 8, so that the jacking cylinder 6 lifts up the PCB board, and the output end of the lead screw motor 10 and the piston plate 13 are screwedly connected.

[0029] The support assembly 1 top two sides outer wall is provided with a detection assembly 2 through bolts, the detection assembly 2 includes box frame 25, the inner wall of box frame 25 is embedded with detection module 27 on one side through bolts, detection module 27 selects optical detection high-definition camera, can detect PCB, judge whether the appearance of PCB has problem, the outer wall of one side of box frame 25 is embedded with control screen 26 through bolts, the parameter of operation control screen 26 can be set, so that control screen 26 controls the equipment to run, and control screen 26 is electrically connected between detection module 27 through wire.

[0030] Working principle: when workshop produces PCB, conveying belt will transport the well-produced PCB to the material handling assembly 3, under the control of control screen 26, lifting cylinder 22 will start, so that the position of electric suction cup 24 is lowered and contacts with the PCB on the conveying belt, then the electric suction cup 24 starts to adsorb the PCB, and then the lifting cylinder 22 starts again, so that the mounting plate 23 with the PCB adsorbed by the electric suction cup 24 is lifted, then the driving motor 20 starts, which makes the lifting cylinder 22 rotate on the mounting bearing 21, after rotating one hundred and eighty degrees, the driving motor 20 pauses, and then the lifting cylinder 22 starts, which makes the electric suction cup 24 with the PCB fall on the support assembly 1, the process will put the PCB into the installation groove 8 by the material handling assembly 3, then the corresponding lead screw motor 10 starts, and then the piston plate 13 moves in the oil storage cavity 12, so that the hydraulic oil in the oil storage cavity 12 flows into the connecting cavity 14, then the hydraulic oil in the connecting cavity 14 flows into the installation groove 8, so that the clamping block 11 slides in the installation groove 8, so that the two clamping blocks 11 move towards each other, so that the clamp assembly 5 clamps the PCB of different sizes, realizing the clamping and limiting of the PCB, then the rotary motor 18 starts, so that the rotating table 7 rotates on the mounting frame 4, so that the rotating table 7 with the PCB in the installation groove 8 rotates below the detection module 27, then under the continuous control of the control screen 26, the detection module 27 detects the PCB, and during detection, the corresponding lead screw motor 10 reverses, the output end of the lead screw motor 10 lifts the piston plate 13, then under the pulling force of the connecting spring 15 and the same sex attraction of the magnetic block 16, the clamping block 11 is retracted into the installation groove 8, then the jacking cylinder 6 starts, the output end of the jacking cylinder 6 moves in the square hole 9 and the mounting hole 17, so that the output end of the jacking cylinder 6 lifts the PCB in the installation groove 8, so that the PCB is close to the detection module 27, so that the detection module 27 can better detect the PCB, then after detection is completed, the rotary motor 18 continues to start, so that the rotating table 7 with the detected PCB moves to another material handling assembly 3, then the other material handling assembly 3 starts, which takes down the PCB in the installation groove 8, realizing the discharging of the PCB.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An AOI detection device of a PCB board, comprising a support assembly (1), characterized in that: The support assembly (1) top two sides of the outer wall is equipped with the material carrying assembly (3), the material carrying assembly (3) includes the fixed frame (19), the fixed frame (19) top one side outer wall is equipped with the mounting bearing (21), the mounting bearing (21) top is equipped with lifting cylinder (22), and the output end of lifting cylinder (22) is equipped with mounting plate (23), the mounting plate (23) bottom two sides of the outer wall is equipped with electric suction disc (24) with threaded connection, the fixed frame (19) inner wall top one side is equipped with drive motor (20) by bolt mounting, and the output end of drive motor (20) and the bottom end of lifting cylinder (22) are fixedly connected.

2. The AOI detection device of a PCB board according to claim 1, characterized in that: The support assembly (1) includes mounting frame (4), the mounting frame (4) top two sides of the outer wall is equipped with two mounting holes (17), the mounting frame (4) inner wall top one side is equipped with jacking cylinder (6) by bolt mounting, and the output end of jacking cylinder (6) is located in the inside of mounting hole (17).

3. The AOI detection device of a PCB board according to claim 2, characterized in that: The mounting frame (4) inner wall top center is equipped with rotary motor (18) by bolt mounting, the mounting frame (4) top one side center is equipped with clamp assembly (5) by bearing mounting, the output end of rotary motor (18) is fixedly connected between the key and clamp assembly (5).

4. The AOI detection device of a PCB board according to claim 3, characterized in that: The clamp assembly (5) includes rotary table (7), the rotary table (7) top two sides of the outer wall is equipped with two setting grooves (8), and the setting groove (8) inner wall bottom two sides are equipped with square hole (9), the output end of jacking cylinder (6) is inserted into the inside of square hole (9).

5. The AOI detection device of a PCB board according to claim 4, characterized in that: The setting groove (8) inner wall both sides are equipped with connecting spring (15) by bolt mounting, the setting groove (8) inside is equipped with clamping block (11) and is connected together by bolt and connecting spring (15) one end, the clamping block (11) one side outer wall and setting groove (8) inner wall both sides are equipped with magnetic block (16) by bolt mounting.

6. The AOI detection device of a PCB board according to claim 4, characterized in that: The rotary table (7) is equipped with four oil storage cavities (12), and the oil storage cavity (12) and the setting groove (8) are equipped with two connecting cavities (14).

7. The AOI detection device of a PCB board according to claim 6, characterized in that: The piston plate (13) is slidably connected in the oil storage cavity (12), the rotary table (7) top two sides of the outer wall are equipped with two lead screw motors (10) by bolt mounting, and the output end of lead screw motor (10) is threadedly connected with the piston plate (13). 8.The AOI detection device of a PCB board of claim 1, wherein: The support assembly (1) top two sides of the outer wall is equipped with detection assembly (2) by bolt mounting, the detection assembly (2) includes box frame (25), the detection module (27) is embedded in the box frame (25) inner wall one side by bolt, the control screen (26) is embedded in the box frame (25) one side outer wall by bolt, and the control screen (26) is electrically connected between the detection module (27) by wire.

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