CCD (charge coupled device) visual inspection machine for circuit board

Abstract

The utility model relates to the technical field of circuit board detection, and discloses a circuit board CCD (Charge Coupled Device) visual inspection machine which comprises a machine table, a CCD light source visual photographing module, a first conveying mechanism, a second conveying mechanism, a circuit board and a positioning plate, the telescopic end of the stroke cylinder drives the guide block and the lifting sleeve to lift up and down, so that the positioning rod at one end of the lifting sleeve can slide along the first guide groove and the second guide groove in the rotary table; therefore, the rotary table and the CCD light source visual photographing module installed at the top can periodically turn between the first conveying mechanism and the second conveying mechanism, so that the circuit boards positioned on the conveying belts of the first conveying mechanism and the second conveying mechanism at intervals can be photographed and detected in a staggered mode. The circuit boards on the outer conveying belts of the two conveying mechanisms can be continuously conveyed and detected after being placed at intervals, and therefore the circuit boards on the conveying mechanisms can be detected in batches.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board detection, specifically to a circuit board CCD visual detection machine. BACKGROUND

[0002] At present, in the production and processing process of circuit board, the circuit board needs to be detected to screen out the defective circuit board.

[0003] For example, Chinese patent authorized announcement number CN219401180U, "including frame, frame inside is equipped with automatic feeding machine, automatic feeding machine one side is equipped with suction material conveying module, suction material conveying module one side is equipped with suction detection platform, frame inside is equipped with CCD light source visual photographing, frame inside is equipped with NG mark conveying belt platform, NG mark conveying belt platform outside is equipped with mark pen marking module, mark pen marking module one side is equipped with substandard product separation conveying cylinder line, substandard product separation conveying cylinder line one side is equipped with NG automatic unloading machine and OK automatic unloading machine";

[0004] The above-mentioned comparative document can realize automatic detection of the circuit board, so manual detection is not needed, which can reduce the labor intensity of workers, increase the detection efficiency and effect, and separate the defective products and qualified products, avoiding the confusion of defective products and qualified products;

[0005] However, the above-mentioned circuit board CCD visual detection machine can only detect the circuit board conveyed by one set of conveying mechanism through visual photographing when detecting the circuit board on the conveying belt, and cannot detect the circuit board conveyed by multiple sets of conveying mechanism through staggered visual photographing, which leads to low overall detection efficiency of the circuit board, therefore, we propose a circuit board CCD visual detection machine. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of circuit board CCD visual detection machine, the circuit board CCD visual detection machine can realize to the circuit board on two sets of conveying mechanism and be detected through staggered visual photographing, so that the circuit board on two sets of conveying mechanism can be detected by visual detection module in staggered mode, so that the circuit board on conveying mechanism can be detected in batches.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a circuit board CCD visual inspection machine, including machine table, rotary table, CCD light source visual photographing module, first conveying mechanism, second conveying mechanism, circuit board, positioning plate, the rotary table outer circumferential surface is opened with first guide groove, second guide groove respectively, the machine table top is provided with rotary table, stand respectively, the CCD light source visual photographing module fixed mounting in rotary table top one side circumferential, the stand inner wall bottom fixed mounting has stroke cylinder, the stroke cylinder telescopic end fixedly connected with guide block, the guide block front surface fixed mounting has lifting sleeve, lifting sleeve one end swing mounting has positioning rod, the positioning rod swing passes through lifting sleeve inner chamber and extends to the rotary table outer circumferential place.

[0008] Preferably, the middle of the machine table top is fixedly installed with a support platform, and the rotary table is rotatably installed on the support platform.

[0009] Preferably, the stand is fixedly installed on one side of the machine table top, and a T-shaped groove is formed in the stand.

[0010] Preferably, a connecting block is slidably connected in the inner cavity of the lifting sleeve, a compression spring is arranged between the connecting block and the inner cavity of the lifting sleeve, and the positioning rod is fixedly installed on the side of the connecting block away from the compression spring.

[0011] Preferably, the first guide groove and the second guide groove are connected in communication, and the first guide groove and the second guide groove form an N-shaped structure.

[0012] Preferably, the first conveying mechanism and the second conveying mechanism are arranged in parallel on both sides of the CCD light source visual photographing module, and the displacement between the first conveying mechanism and the second conveying mechanism is matched with the stroke of the stroke cylinder.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a stroke cylinder telescopic end drive guiding block and the up and down of lifting sleeve, make the positioning rod of lifting sleeve one end can along the first guide groove and second guide groove on the rotary table slide, thereby make the rotary table and the CCD light source visual photographing module of top installation can be periodically diverted between the first conveying mechanism and the second conveying mechanism, make the circuit board of first conveying mechanism and second conveying mechanism conveying belt interval positioning can be staggered type photographing detection, realized two groups of conveying mechanism external conveying belt circuit board can be interval placed, all can be continuously conveyed detection, thereby make the circuit board on conveying mechanism can be batch detection, solved the current circuit board CCD visual detection machine and cannot carry out the staggered type visual photographing detection of the circuit board of conveying on multiple groups of conveying mechanism, cause the whole circuit board detection efficiency is not high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the CCD light source visual photographing module structure schematic diagram in the utility model;

[0017] Figure 3 It is the lifting sleeve internal structure schematic diagram in the utility model;

[0018] Figure 4 It is Figure 3 The local amplification structure schematic diagram in A place in the utility model.

[0019] In the drawing: 1, machine table;2, rotary table;3, CCD light source visual photographing module;4, stand;5, first conveying mechanism;6, second conveying mechanism;7, circuit board;8, lifting sleeve;21, first guide groove;210, support platform;22, second guide groove;41, stroke cylinder;42, guiding block;71, positioning plate;81, positioning rod;82, compression spring;83, connecting block. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, and the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of circuit board CCD visual detection machine, including machine table 1, rotary table 2, CCD light source visual photographing module 3, first conveying mechanism 5, second conveying mechanism 6, circuit board 7, positioning plate 71, first guide groove 21 is respectively set on the outer circumferential surface of rotary table 2, second guide groove 22, machine table 1 top is respectively provided with rotary table 2, stand 4;

[0022] The CCD light source visual photographing module 3 is fixedly installed on the top of the turntable 2, the stroke cylinder 41 is fixedly installed on the inner wall of the column 4, the extension end of the stroke cylinder 41 is fixedly connected with the guide block 42, the front surface of the guide block 42 is fixedly installed with the lifting sleeve 8, one end of the lifting sleeve 8 is movably installed with the positioning rod 81, and the positioning rod 81 movably penetrates the inner cavity of the lifting sleeve 8 and extends to the outer periphery of the turntable 2.

[0023] The first conveying mechanism 5 and the second conveying mechanism 6 each include a conveying belt and a servo motor. The circuit board 7 is loaded at equal intervals between the positioning plates 71 fixedly installed on the surfaces of the first conveying mechanism 5 and the second conveying mechanism 6, so that the positioned circuit board 7 can be stopped by the servo motor under the control of the PLC controller when passing through the CCD light source visual photographing module 3, and the circuit board 7 is photographed and recorded by the CCD light source visual photographing module 3. This is a prior art solution, which will not be described in detail here.

[0024] The extension end of the stroke cylinder 41 drives the guide block 42 and the lifting sleeve 8 to move up and down, so that the positioning rod 81 at one end of the lifting sleeve 8 can slide along the first guide groove 21 and the second guide groove 22 on the turntable 2, so that the turntable 2 and the CCD light source visual photographing module 3 installed on the top can periodically turn between the first conveying mechanism 5 and the second conveying mechanism 6. In this way, the circuit boards 7 positioned at equal intervals on the conveying belts of the first conveying mechanism 5 and the second conveying mechanism 6 can be detected by staggered photographing, and the circuit boards 7 on the conveying mechanisms can be continuously detected after being placed at intervals, so that the circuit boards 7 on the conveying mechanisms can be batch detected.

[0025] The support platform 210 is fixedly installed in the middle of the top surface of the machine table 1, the turntable 2 is rotatably installed on the support platform 210, the column 4 is fixedly installed on one side of the top of the machine table 1, the T-shaped groove is formed in the column 4, the guide block 42 slides in the T-shaped groove in the column 4, and the extension end of the stroke cylinder 41 drives the guide block 42 and the lifting sleeve 8 to move up and down, so that the positioning rod 81 at one end of the lifting sleeve 8 can slide along the first guide groove 21 and the second guide groove 22 on the turntable 2.

[0026] The connecting block 83 is slidably connected in the inner cavity of the lifting sleeve 8, the compression spring 82 is arranged between the connecting block 83 and the inner cavity of the lifting sleeve 8, the positioning rod 81 is fixedly installed on the side, away from the compression spring 82, of the connecting block 83, the first guide groove 21 is in communication with the second guide groove 22, the first guide groove 21 and the second guide groove 22 form an N-shaped structure, and when the positioning rod 81 at one end of the lifting sleeve 8 slides along the first guide groove 21 and the second guide groove 22, the compression spring 82 in the lifting sleeve 8 elastically positions the positioning rod 81, so that the positioning rod 81 can be displaced from the arc-shaped first guide groove 21 to the vertical second guide groove 22.

[0027] The first conveying mechanism 5 and the second conveying mechanism 6 are arranged in parallel on the two sides of the CCD light source visual shooting module 3, respectively, and the displacement between the first conveying mechanism 5 and the second conveying mechanism 6 is matched with the stroke of the stroke cylinder 41, respectively, the servo motor in the first conveying mechanism 5 and the second conveying mechanism 6 is electrically connected with the stroke cylinder 41 through a PLC controller, respectively, when the circuit board 7 on the second conveying mechanism 6 is conveyed to the position opposite to the CCD light source visual shooting module 3, the circuit board 7 on the first conveying mechanism 5 and the circuit board 7 on the second conveying mechanism 6 are spaced apart by a positioning plate 71, so that when the CCD light source visual shooting module 3 is adjusted and turned through the stroke cylinder 41, the servo motor on the first conveying mechanism 5 works synchronously, so that the corresponding circuit board 7 on the conveying belt can be synchronously conveyed to the CCD light source visual shooting module 3 after the turning, and the circuit boards 7 on the conveying belts of the two groups of conveying mechanisms can be continuously conveyed and detected after being spaced apart, so that the circuit boards 7 on the conveying mechanisms can be batch detected.

[0028] Working principle: when in use, the circuit boards 7 are respectively fed onto the first conveying mechanism 5 and the second conveying mechanism 6;

[0029] When the circuit boards 7 on the two groups of conveying belts are conveyed and detected, the circuit board 7 on the second conveying mechanism 6 is conveyed to the position opposite to the CCD light source visual shooting module 3, the circuit board 7 on the first conveying mechanism 5 and the circuit board 7 on the second conveying mechanism 6 are spaced apart by a positioning plate 71,

[0030] Then, the extension end of the stroke cylinder 41 drives the guide block 42 and the lifting sleeve 8 to move up and down, so that the positioning rod 81 at one end of the lifting sleeve 8 can slide along the first guide groove 21 and the second guide groove 22 on the turntable 2, so that the turntable 2 and the CCD light source visual shooting module 3 installed on the top can be periodically turned between the first conveying mechanism 5 and the second conveying mechanism 6, so that the circuit boards 7 on the conveying belts of the first conveying mechanism 5 and the second conveying mechanism 6 can be staggered and photographed, and the servo motor on the first conveying mechanism 5 works synchronously, so that the corresponding circuit board 7 on the conveying belt can be synchronously conveyed to the CCD light source visual shooting module 3 after the turning.

[0031] While embodiments of the present application have been shown and described, it is to be understood that the embodiments described are merely divergences and modifications and are not meant to limit the application and that many variations in the embodiments can become apparent to those skilled in the art in view of this teaching. The scope of the application is to be indicated by the appended claims, and their equivalents.

Claims

1. A circuit board CCD vision inspection machine, comprising a machine table (1), a rotary table (2), a CCD light source vision photographing module (3), a first conveying mechanism (5), a second conveying mechanism (6), a circuit board (7), and a positioning plate (71), characterized in that: The rotating platform (2) is externally provided with a first guide groove (21) and a second guide groove (22), the machine table (1) is provided with the rotating platform (2) and a column (4) on the top, the CCD light source visual photographing module (3) is fixedly installed on one side of the top of the rotating platform (2), the column (4) is internally provided with a stroke cylinder (41) fixedly installed on the bottom of the inner wall, the stroke cylinder (41) is fixedly connected with a guide block (42) at the telescopic end, the guide block (42) is fixedly installed with a lifting sleeve (8) on the front surface, the lifting sleeve (8) is movably installed with a positioning rod (81) at one end, the positioning rod (81) movably penetrates through the inner cavity of the lifting sleeve (8) and extends to the external circumference of the rotating platform (2).

2. The circuit board CCD vision inspection machine of claim 1, wherein: The machine table (1) is internally provided with a support platform (210) fixedly installed on the top surface.

3. The circuit board CCD vision inspection machine of claim 2, wherein: The column (4) is fixedly installed on one side of the top of the machine table (1), the column (4) is internally provided with a T-shaped groove, and the guide block (42) slides in the T-shaped groove of the column (4).

4. The circuit board CCD vision inspection machine of claim 3, wherein: The lifting sleeve (8) is internally provided with a connecting block (83) slidably connected, the connecting block (83) and the inner cavity of the lifting sleeve (8) are provided with a compression spring (82), and the positioning rod (81) is fixedly installed on the side, away from the compression spring (82), of the connecting block (83).

5. The circuit board CCD vision inspection machine of claim 4, wherein: The first guide groove (21) and the second guide groove (22) are communicated, and the first guide groove (21) and the second guide groove (22) form an N-shaped structure.

6. The circuit board CCD vision inspection machine of claim 5, wherein: The first conveying mechanism (5) and the second conveying mechanism (6) are arranged in parallel on the two sides of the CCD light source visual photographing module (3), and the displacement between the first conveying mechanism (5) and the second conveying mechanism (6) is matched with the stroke of the stroke cylinder (41).

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