FPC board detection device and detection method provided with visual detection device

Abstract

The present invention discloses an FPC board detection device provided with a visual detection device, comprising a conveying mechanism, wherein a side positioning structure for positioning an FPC circuit board is arranged on the conveying mechanism, a lifting component is arranged above the conveying mechanism, a photographing mechanism for detecting the appearance of the FPC circuit board is arranged on the lifting component, and two retractable positioning mechanisms for positioning the front and rear ends of the FPC circuit board are arranged on the conveying mechanism below the photographing mechanism, which automatically fine-tune the front, rear, left and right positions of the FPC circuit board to make it centered in the middle of the photographing position. At the same time, when the front and rear positioning mechanisms are positioning, the photographing device follows and descends to the upper surface of the FPC board for clearer photography. After visual comparison between multiple groups of photographed pictures and terminal qualified pictures, it is quickly detected whether the FPC board is qualified, the detection efficiency is high, and the labor force is reduced.

Description

Technical Field

[0001] The invention relates to FPC circuit board detection, in particular to an FPC board detection device provided with a visual detection device. Background Art

[0002] The appearance inspection of FPC circuit boards usually adopts manual inspection or equipment-assisted inspection. However, the efficiency of manual inspection and equipment inspection is low, and manual inspection is labor-intensive. Therefore, when inspecting FPC circuit boards, how to use visual and efficient inspection becomes a problem that needs to be solved. At the same time, when performing visual inspection, it is usually necessary to manually position the FPC board in order to achieve accurate positioning and take pictures, which undoubtedly reduces the inspection efficiency.

[0003] Therefore, the existing FPC circuit board detection needs to be further improved. Summary of the invention

[0004] The purpose of the present invention is to provide an FPC board detection device equipped with a visual detection device, which can continuously detect the FPC board and automatically position the FPC board front, back, left and right, and better cooperate with a shooting device to perform visual and accurate detection.

[0005] In order to achieve the above object, the present invention adopts the following scheme:

[0006] An FPC board detection device provided with a visual detection device comprises a conveying mechanism, the conveying mechanism is provided with a side positioning structure for positioning an FPC circuit board, a lifting assembly is provided above the conveying mechanism, a photographing mechanism for detecting the appearance of the FPC circuit board is provided on the lifting assembly, two retractable positioning mechanisms for positioning the front and rear ends of the FPC circuit board are provided on the conveying mechanism below the photographing mechanism, and a control mechanism for controlling the two retractable positioning mechanisms and the photographing mechanism to close together or move away from each other is provided on the conveying mechanism.

[0007] Furthermore, the conveying mechanism includes a base plate, support plates are provided at both ends of the base plate, transmission rollers are provided on the support plates at both ends, two conveyor belts spaced apart on the left and right are connected between the transmission rollers at both ends, a transmission motor is provided on one of the support plates, and the transmission motor is fixedly connected to the end of one of the transmission rollers.

[0008] Furthermore, the side positioning structure includes side positioning plates arranged on both sides of the conveyor belt, the side positioning plates are fixedly connected to the support plates, and a guiding inclined surface is arranged at the front end of the side positioning plates.

[0009] Furthermore, the lifting assembly includes a plurality of guide shafts and a lifting plate arranged on the side positioning plate, and the lifting plate is provided with a plurality of guide holes that can cooperate with the plurality of guide shafts.

[0010] Furthermore, the photographing mechanism includes a plurality of photographing cameras disposed on the lifting plate, and the plurality of photographing cameras are communicatively connected to a processor terminal.

[0011] Furthermore, the retractable positioning mechanism includes a connecting plate arranged between the side positioning plates on both sides, the connecting plate is provided with an oblique through hole, the bottom plate is provided with an oblique guide sleeve, an oblique guide rod is movably provided in the oblique guide sleeve, and a hidden oblique positioning block that can move in the oblique through hole is provided at the upper end of the oblique guide rod.

[0012] Furthermore, the control mechanism includes a side panel member arranged on the side positioning plate, a push rod motor is horizontally arranged on the side panel member, vertical guide grooves are respectively arranged above and below the push rod motor, a vertical slider is movably arranged in the vertical guide groove, a first hinge part is arranged on the vertical slider, two second hinge parts are arranged at intervals above and below the output end of the push rod motor, a driving connecting rod is hinged between the first hinge part and a corresponding one of the second hinge parts, the upper vertical slider is fixedly connected to the lifting plate, and a lifting linkage mechanism is arranged between the lower vertical slider and the two oblique guide rods.

[0013] Furthermore, the lifting linkage mechanism includes a lifting rod arranged on the side positioning plate, the lifting rod is fixedly connected to the vertical slider below, a transverse rod is arranged at the lower end of the lifting rod, a transverse straight groove is arranged on the transverse rod, a driving shaft is arranged on the outer wall of the lifting rod, and the driving shaft is movably inserted into the transverse straight groove.

[0014] The purpose of the present invention is to provide a FPC board detection method, which can continuously detect the FPC board and can visually and accurately detect the FPC board.

[0015] A method for detecting an FPC board comprises the following steps:

[0016] Step 1: Place the FPC boards one by one on the conveying mechanism, and deliver the FPC boards to the approximate position below the camera mechanism;

[0017] Step 2: After the FPC board is moved to the position below the camera mechanism, the two sides of the FPC board are centered by the side positioning plates;

[0018] Step 3, starting the control mechanism, the control mechanism controls the two hidden oblique positioning blocks at the front and rear to extend upward, and center the front and rear sides of the FPC board;

[0019] Step 4: The photographing mechanism descends to a specified height position when the control mechanism is lowered, takes a photograph of the FPC board, and transmits the photograph to the processor terminal;

[0020] Step 5: The processor terminal stores the qualified FPC board appearance picture in advance, and performs image comparison processing with the FPC board appearance picture transmitted by the inspection;

[0021] Step 6: Send qualified and unqualified signals based on the comparison results to complete the detection of the FPC board.

[0022] In summary, the present invention has the following beneficial effects compared with the prior art:

[0023] The present invention solves the shortcomings existing in the existing FPC circuit board detection device. Through the structural setting of the present invention, it has the following advantages: continuous conveying of the FPC board is realized, and the conveying efficiency is improved. When the FPC board is sent to the bottom of the photographing device, the front, rear, left, and right positions are automatically fine-tuned to make it centered in the middle of the shooting position. At the same time, when the front and rear positioning mechanisms are positioned, the photographing device follows and descends to the upper surface of the FPC board for clearer shooting. After visual comparison of multiple groups of photographed pictures and terminal qualified pictures, it is quickly detected whether the FPC board is qualified, the detection efficiency is high, the labor force is reduced, and the structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 It is a right side view of the present invention;

[0026] Figure 3 for Figure 2 Section view along line AA;

[0027] Figure 4 It is one of the internal structure schematic diagrams of the present invention;

[0028] Figure 5 This is the second schematic diagram of the internal structure of the present invention;

[0029] Figure 6 It is the front view of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 6The present invention provides an FPC board detection device with a visual detection device, comprising a conveying mechanism 1, on which a side positioning structure 2 for positioning an FPC circuit board is arranged, a lifting assembly 3 is arranged above the conveying mechanism 1, on which a photographing mechanism 4 for detecting the appearance of the FPC circuit board is arranged, and on which two retractable positioning mechanisms 5 for positioning the front and rear ends of the FPC circuit board are arranged on the conveying mechanism 1 below the photographing mechanism 4, and a control mechanism 6 for controlling the two retractable positioning mechanisms 5 and the photographing mechanism 4 to close or move away from each other is arranged on the conveying mechanism 1;

[0032] The FPC boards are placed into the conveying mechanism 1 one by one for conveying, and the FPC boards are delivered one by one to the position below the camera mechanism 4. At this time, the side positioning structure 2 aligns the FPC boards in the center;

[0033] And the control mechanism 6 is started, and the control mechanism 6 controls the retractable positioning mechanism 5 to extend, and extend to the front and rear ends of the FPC board to perform positioning processing on the front and rear ends of the FPC board.

[0034] At this time, the photographing mechanism 4 is driven by the control mechanism 6 to descend and approach the surface of the FPC board for photographing.

[0035] The conveying mechanism 1 of the present invention includes a base plate 101, support plates 102 are provided at both ends of the base plate 101, transmission rollers 103 are provided on the support plates 102 at both ends, and two conveyor belts 104 spaced apart are connected between the transmission rollers 103 at both ends, a transmission motor 105 is provided on one of the support plates 102, and the transmission motor 105 is fixedly connected to the end of one of the transmission rollers 103.

[0036] The side positioning structure 2 of the present invention comprises side positioning plates 201 arranged on both sides of the conveyor belt 104 , the side positioning plates 201 are fixedly connected to the support plate 102 , and a guide slope 202 is arranged at the front end of the side positioning plates 201 .

[0037] The lifting assembly 3 of the present invention comprises a plurality of guide shafts 301 and a lifting plate 302 arranged on the side positioning plate 201 . The lifting plate 302 is provided with a plurality of guide holes 303 that can cooperate with the plurality of guide shafts 301 .

[0038] The photographing mechanism 4 of the present invention includes a plurality of photographing cameras 100 disposed on the lifting plate 302 , and the plurality of photographing cameras 100 are communicatively connected to a processor terminal.

[0039] The telescopic positioning mechanism 5 of the present invention comprises a connecting plate 501 arranged between the side positioning plates 201 on both sides, the connecting plate 501 is provided with an oblique through hole 502, the bottom plate 101 is provided with an oblique guide sleeve 503, an oblique guide rod 504 is movably arranged in the oblique guide sleeve 503, and a hidden oblique positioning block 505 that can move in the oblique through hole 502 is arranged at the upper end of the oblique guide rod 504;

[0040] When the FPC board moves between the two oblique guide rods 504, the oblique guide rods 504 extend outwards to push the two ends of the FPC board so that the two ends of the FPC are centered.

[0041] The control mechanism 6 described in the present invention includes a side panel member 601 arranged on the side positioning plate 201, a push rod motor 602 is horizontally arranged on the side panel member 601, vertical guide grooves 603 are respectively arranged above and below the push rod motor 602, a vertical slider 604 is movably arranged in the vertical guide groove 603, a first hinge part 6050 is arranged on the vertical slider 604, two second hinge parts 606 are arranged at intervals above and below the output end of the push rod motor 602, a driving connecting rod 607 is hinged between the first hinge part 6050 and a corresponding one of the second hinge parts 606, the upper vertical slider 604 is fixedly connected to the lifting plate 302, and a lifting linkage mechanism 605 is arranged between the lower vertical slider 604 and the two inclined guide rods 504.

[0042] The lifting linkage mechanism 605 of the present invention comprises a lifting rod 6051 arranged on the side positioning plate 201, the lifting rod 6051 is fixedly connected to the vertical slider 604 below, a transverse rod 6052 is arranged at the lower end of the lifting rod 6051, a transverse straight groove 6053 is arranged on the transverse rod 6052, a driving shaft 6054 is arranged on the outer wall of the lifting rod 6051, and the driving shaft 6054 is movably inserted into the transverse straight groove 6053;

[0043] When the push rod motor 602 extends outward, it pushes or pulls the driving connecting rod 607, so that the upper and lower vertical sliding blocks 604 move closer to each other.

[0044] A method for detecting an FPC board comprises the following steps:

[0045] Step 1: Place the FPC boards one by one on the conveying mechanism 1, and deliver the FPC boards to the approximate position below the camera mechanism 4;

[0046] Step 2: After the FPC board moves to the position below the camera mechanism 4, the two sides of the FPC board are centered by the side positioning plates 201;

[0047] Step 3: Start the control mechanism 6, and the control mechanism 6 controls the two hidden oblique positioning blocks 505 to extend upward to center the front and rear sides of the FPC board;

[0048] Step 4, the photographing mechanism 4 is lowered to a specified height position when the control mechanism 6 is lowered, takes a photograph of the FPC board, and transmits the photograph to the processor terminal;

[0049] Step 5: The processor terminal stores the qualified FPC board appearance picture in advance, and performs image comparison processing with the FPC board appearance picture transmitted by the inspection;

[0050] Step 6: Send qualified and unqualified signals based on the comparison results to complete the detection of the FPC board.

[0051] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An FPC board detection device provided with a visual detection device, comprising a conveying mechanism (1), characterized in that: The conveying mechanism (1) is provided with a side positioning structure (2) for positioning the FPC circuit board; a lifting assembly (3) is provided above the conveying mechanism (1); a photographing mechanism (4) for detecting the appearance of the FPC circuit board is provided on the lifting assembly (3); two retractable positioning mechanisms (5) for positioning the front and rear ends of the FPC circuit board are provided on the conveying mechanism (1) below the photographing mechanism (4); and a control mechanism (6) for controlling the two retractable positioning mechanisms (5) and the photographing mechanism (4) to close together or move away from each other is provided on the conveying mechanism (1); The conveying mechanism (1) comprises a bottom plate (101), support plates (102) are arranged at both ends of the bottom plate (101), transmission rollers (103) are arranged on the support plates (102) at both ends, and two transmission belts (104) arranged at intervals on the left and right are connected between the transmission rollers (103) at both ends; The side positioning structure (2) comprises side positioning plates (201) arranged on both sides of the conveyor belt (104); The lifting assembly (3) comprises a plurality of guide shafts (301) and a lifting plate (302) arranged on the side positioning plate (201); the lifting plate (302) is provided with a plurality of guide holes (303) capable of cooperating with the plurality of guide shafts (301); The telescopic positioning mechanism (5) comprises a connecting plate (501) arranged between the side positioning plates (201) on both sides, the connecting plate (501) is provided with an oblique through hole (502), the bottom plate (101) is provided with an oblique guide sleeve (503), an oblique guide rod (504) is movably arranged in the oblique guide sleeve (503), and a hidden oblique positioning block (505) that can move in the oblique through hole (502) is arranged at the upper end of the oblique guide rod (504); The control mechanism (6) comprises a side plate member (601) arranged on the side positioning plate (201), a push rod motor (602) is arranged horizontally on the side plate member (601), vertical guide grooves (603) are arranged above and below the push rod motor (602), a vertical slider (604) is movably arranged in the vertical guide groove (603), a first hinged portion (6050) is arranged on the vertical slider (604), two second hinged portions (606) are arranged at intervals above and below the output end of the push rod motor (602), a driving connecting rod (607) is hinged between the first hinged portion (6050) and a corresponding one of the second hinged portions (606), the upper vertical slider (604) and the lifting plate (302) are fixedly connected, and a lifting linkage mechanism is arranged between the lower vertical slider (604) and the two oblique guide rods (504); The lifting linkage mechanism comprises a lifting rod (6051) arranged on the side positioning plate (201), the lifting rod (6051) being fixedly connected to the vertical slider (604) below, a transverse rod (6052) being arranged at the lower end of the lifting rod (6051), a transverse straight groove (6053) being arranged on the transverse rod (6052), and a driving shaft (6054) being arranged on the outer wall of the lifting rod (6051), and the driving shaft (6054) being movably inserted into the transverse straight groove (6053).

2. The FPC board detection device provided with a visual detection device according to claim 1, characterized in that: A transmission motor (105) is provided on one of the support plates (102), and the transmission motor (105) is fixedly connected to an end of one of the transmission rollers (103).

3. The FPC board detection device provided with a visual detection device according to claim 2, characterized in that: The side positioning plate (201) and the support plate (102) are fixedly connected, and a guide inclined surface (202) is provided at the front end of the side positioning plate (201).

4. The FPC board detection device provided with a visual detection device according to claim 1, characterized in that: The photographing mechanism (4) comprises a plurality of photographing cameras (100) arranged on the lifting plate (302), and the plurality of photographing cameras (100) are communicatively connected to a processor terminal.

5. A method for detecting an FPC board, using the FPC board detection device provided with a visual detection device as claimed in claim 4, characterized in that: The following steps are included: Step 1: Place the FPC boards one by one on the conveying mechanism (1), and deliver the FPC boards to a rough position below the camera mechanism (4); Step 2: After the FPC board is moved to a position below the camera mechanism (4), the two sides of the FPC board are centered using the side positioning plates (201); Step 3, starting the control mechanism (6), wherein the control mechanism (6) controls the two front and rear hidden oblique positioning blocks (505) to extend upwards, so as to center the front and rear sides of the FPC board; Step 4: the control mechanism (6) controls the photographing mechanism (4) to descend to a specified height position, takes a photograph of the FPC board, and transmits the photograph to the processor terminal; Step 5: The processor terminal stores the qualified FPC board appearance picture in advance, and performs image comparison processing with the FPC board appearance picture transmitted by the inspection; Step 6: Send qualified and unqualified signals based on the comparison results to complete the detection of the FPC board.

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