A feeding part inspection platform of a flexible circuit board

Abstract

A flexible circuit board loading and inspection platform, belonging to the technical field of flexible circuit board production equipment, includes a working support, which comprises a flexible circuit board placement platform located in the middle, on which a flexible circuit board fixing plate is mounted; it also includes a high-precision vision inspection system located at the top, comprising several fixing rods fixed to the top of the working support, and at least two high-definition cameras fixed to each fixing rod; the high-precision vision inspection system photographs the flexible circuit boards placed on the flexible circuit board fixing plate and stores the images in an integrated control and data processing center located on the side of the middle of the working support. This provides a flexible circuit board loading and inspection platform that employs an automated vision inspection system and integrates full-process functions such as optical inspection, data analysis, and result storage.

Description

Technical Field

[0001] This application belongs to the technical field of flexible circuit board production equipment, and specifically relates to an inspection platform for the loading section of flexible circuit boards. Background Technology

[0002] During the production and processing of FPC boards, manual inspection of long rolls of FPC boards is required. In the past, workers would place the long rolls of FPC boards on a workbench and then manually pull the FPC boards while inspecting them. This manual pulling method was extremely inconvenient and seriously affected the inspection speed of the workers.

[0003] A roll-type FPC board inspection table, disclosed in CN206606647U, has a feeding roller on the left side of the workbench and a bearing support mechanism and a take-up roller mounted on the bearing support mechanism on the right side. The two ends of a long roll of FPC board are respectively wound onto the feeding roller and the take-up roller. The long roll of FPC board is laid simultaneously on the workbench, allowing the operator to move the long roll of FPC board while inspecting it.

[0004] In existing technologies, equipment relies on workers to manually crank a hand crank to drive the receiving roller, and only supports basic manual visual inspection, lacking automated detection capabilities and resulting in large errors. Utility Model Content

[0005] The purpose of this invention is to solve existing problems by providing an inspection platform for the loading section of flexible circuit boards that adopts an automated vision inspection system and integrates full-process functions such as optical inspection, data analysis, and result storage.

[0006] In order to achieve the above technical objectives, the following technical solution is provided: a flexible circuit board loading inspection platform, including a working support, the working support including a flexible circuit board placement platform disposed in the middle, and a flexible circuit board fixing plate disposed on the flexible circuit board placement platform;

[0007] It also includes a high-precision visual inspection system set on top, which includes several fixed rods fixed to the top of the working support, and at least two high-definition cameras fixed on each fixed rod;

[0008] The high-precision vision inspection system photographs the flexible circuit board mounted on the flexible circuit board fixing plate and stores the images in the integrated control and data processing center located on the side of the middle of the work support.

[0009] In one feasible embodiment, one vertex of the flexible circuit board fixing plate is the origin of the high-precision vision inspection system, wherein the length side of the flexible circuit board fixing plate connected to this vertex is the X-axis, and the width side of the flexible circuit board fixing plate connected to this vertex is the Y-axis; wherein the fixing rod is perpendicular to the X-axis and parallel to the Y-axis.

[0010] In one feasible approach, three high-definition cameras are evenly distributed on the fixed pole.

[0011] In one feasible approach, the flexible circuit board mounting plate is marked with the placement coordinates of the flexible circuit board.

[0012] In feasible implementations, the integrated control and data processing center includes an industrial computer and its associated monitor, keyboard, mouse, control button box, and touch screen.

[0013] In one feasible implementation, the work support is an alloy cabinet frame with casters at the bottom that have locking functionality; the alloy cabinet frame has an internal layered or partitioned design.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The top-mounted side-by-side industrial cameras achieve high-resolution full-frame scanning, automatically identifying defects such as circuit breaks and poor solder joints, with a lower rate of missed detection than manual visual inspection. At the beginning of the design of the technical solution of this application, the inventors also considered setting a movable industrial camera at the top. However, the image acquisition speed of one of the industrial cameras is slow, and more importantly, the acquired images have large deviations.

[0016] The AOI algorithm is run on the industrial control computer on the left, outputting qualified / unqualified results in real time and generating reports, supporting data traceability.

[0017] The bottom casters allow for flexible deployment within the workshop, while the locking device ensures testing stability. The bottom cabinet provides layered storage for tools and consumables, optimizing workspace utilization. Attached Figure Description

[0018] 1. Working support; 2. Flexible circuit board mounting platform; 3. Flexible circuit board fixing plate; 4. High-precision vision inspection system; 5. Integrated control and data processing center; 41. Fixing rod; 42. High-definition camera.

[0019] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Detailed Implementation

[0020] like Figure 1The embodiment shown includes a flexible circuit board loading inspection platform, which includes a working support 1. The working support 1 includes a flexible circuit board placement platform 2 disposed in the middle, and a flexible circuit board fixing plate 3 is disposed on the flexible circuit board placement platform 2.

[0021] It also includes a high-precision visual inspection system 4 set on the top, the high-precision visual inspection system 4 including a number of fixing rods 41 fixed to the top of the working bracket 1, and at least two high-definition cameras 42 fixed on each fixing rod 41;

[0022] The high-precision vision inspection system 4 takes pictures of the flexible circuit board placed on the flexible circuit board fixing plate 3 and stores them in the integrated control and data processing center 5 located on the side of the middle of the working support 1.

[0023] The top working support 1 of the high-precision vision inspection system 4 in this application uses a fixed support. Because of the adjustable support, the device can be adjusted at any time during operation to adapt to different sized circuit boards and optimal focal length requirements. Moreover, it is equipped with a coaxial light source or ring light source integrated around the camera to provide uniform, shadowless illumination. However, the flexible circuit boards targeted by the device in this application have a single shape, and the adjustment structure is prevented from loosening due to vibration during the use of the device.

[0024] In this embodiment, one vertex of the flexible circuit board fixing plate 3 is the origin of the high-precision vision inspection system 4, wherein the length side of the flexible circuit board fixing plate 3 connected to the vertex is the X-axis, and the width side of the flexible circuit board fixing plate 3 connected to the vertex is the Y-axis; wherein the fixing rod 41 is perpendicular to the X-axis and parallel to the Y-axis.

[0025] Preferably, the vertical rod fixed to the integrated control and data processing center 5 is located at the bottom left side of the entire working bracket 1. For ease of recording and operation, the bottom left end is used as the origin, and the X-axis and Y-axis settings conform to the daily habits of the designer and operator of this equipment. The setting of the fixed rod 41 ensures that the structure is stable and will not deform after the multiple high-definition cameras 42 are installed.

[0026] In this embodiment, three high-definition cameras 42 are evenly distributed on the fixing rod 41, enabling the entire flexible circuit board to be imaged in one go.

[0027] In this embodiment, the flexible circuit board fixing plate 3 is marked with the placement coordinates of the flexible circuit board. This facilitates the selection of the initial position of the integrated control and data processing center 5.

[0028] In this embodiment, the integrated control and data processing center 5 includes an industrial computer and its associated display, keyboard, mouse, control button box and touch screen.

[0029] In this embodiment, the working support 1 is an alloy cabinet frame with universal wheels with locking function at the bottom; the alloy cabinet frame has a layered or partitioned design inside.

[0030] During operation, the flexible circuit board fixing plate 3 is placed on the flexible circuit board placement platform 2, which is equipped with a misplacement mechanism. Multiple flexible circuit boards are then laid flat on the fixing plate 3, followed by the electrical components to be processed. An array of high-definition cameras 42 then photographs the entire flexible circuit board. A composite image of these multiple images is compared with photos stored in the integrated control and data processing center 5. This real-time image analysis by AOI software identifies potential defects. The inspection results (pass / fail and defect information) are displayed on the control panel screen and stored. If necessary, the operator can perform manual re-inspection or processing. After inspection, the circuit board is removed and the next step of the process begins.

[0031] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent 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, and therefore should not be construed as a limitation on this patent application.

[0032] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0033] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples, without contradiction.

[0035] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A flexible circuit board loading and inspection platform, comprising a working support (1), characterized in that The working support (1) includes a flexible circuit board mounting platform (2) located in the middle, and a flexible circuit board fixing plate (3) is mounted on the flexible circuit board mounting platform (2); It also includes a high-precision visual inspection system (4) set on the top, the high-precision visual inspection system (4) including a plurality of fixed rods (41) fixed to the top of the working bracket (1), and at least two high-definition cameras (42) fixed on each of the fixed rods (41); The high-precision visual inspection system (4) takes pictures of the flexible circuit board placed on the flexible circuit board fixing plate (3) and stores them in the integrated control and data processing center (5) located on the side of the middle part of the working bracket (1).

2. The flexible circuit board loading section inspection stage of claim 1, wherein, One of the vertices of the flexible circuit board fixing plate (3) is the origin of the high-precision visual inspection system (4), wherein the length side of the flexible circuit board fixing plate (3) connected to the vertex is the X-axis, and the width side of the flexible circuit board fixing plate (3) connected to the vertex is the Y-axis; The fixing rod (41) is perpendicular to the X-axis and parallel to the Y-axis.

3. The loading section inspection stage of the flexible circuit board according to claim 1 or 2, characterized by, Three high-definition cameras (42) are evenly distributed on the fixed rod (41).

4. The flexible circuit board loading section inspection stage of claim 3, wherein, The flexible circuit board fixing plate (3) is marked with the placement coordinates of the flexible circuit board.

5. The flexible circuit board loading section inspection platform of claim 1, wherein, The integrated control and data processing center (5) includes an industrial computer and its associated display, keyboard, mouse, control button box and touch screen.

6. The flexible circuit board loading section inspection platform of claim 1, wherein, The working support (1) is an alloy cabinet frame with universal wheels with locking function at the bottom; wherein the alloy cabinet frame has a layered or partitioned internal design.

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