Device and process for detecting appearance defects of emergency lamp circuit board

Abstract

The invention discloses an emergency lamp circuit board appearance defect detection device and a process thereof, and belongs to the technical field of emergency lamp circuit board production, the emergency lamp circuit board appearance defect detection device comprises a support frame, a detection turnover structure, a size detection structure, a flatness detection structure, a circuit board fixing structure and a detection moving structure, the detection overturning structure is arranged on the supporting frame and rotationally connected with the supporting frame, the size detection structure is located on the detection overturning structure, the detection moving structure is located beside the supporting frame, and the circuit board fixing structure is horizontally arranged on the detection moving structure. The flatness detection structure is located on the size detection structure, and the flatness detection structure is arranged towards the circuit board fixing structure. According to the invention, detection operation of various dimensions of the appearance of the circuit board can be realized.

Description

Technical Field

[0001] The invention belongs to the technical field of emergency light circuit board production, and in particular relates to a device and a process for detecting appearance defects of emergency light circuit boards. Background Art

[0002] PCB has been widely used in all walks of life. It is an important electronic component and a support for electronic components. It plays a key role in various electrical equipment. With the rapid development of printed circuit boards, the quality of printed lines has become an important part of printed circuit boards. Due to the influence of factors such as printing process, circuit board transportation environment, and circuit board assembly of electrical components (SMT and DIP), printed lines may break, resulting in open circuit damage abnormalities, and ultimately causing the PCB to fail to work properly. How to expose the open circuit defects caused by potential printed line breaks in the incoming material stage has become an important part of improving the reliability of PCBs. At present, for PCB printed line break defects, only conventional appearance and electrical performance tests can be used to find products with obvious printed line breaks. It is difficult to identify products with unclear breaks (such as only breaks, but the break is in contact).

[0003] After the emergency light circuit board is processed, it is necessary to inspect the appearance of the circuit board, and inspect the size, surface, pads, printing, etc. of the circuit board.

[0004] However, the prior art still has the following problems: first, when inspecting the size of a circuit board, it is not possible to perform a comprehensive inspection of the width, thickness and length of the circuit board; second, when inspecting, it is not possible to inspect the flatness of the circuit board. Summary of the invention

[0005] The embodiment of the present invention provides a device and a process for detecting appearance defects of an emergency light circuit board to solve the problems in the prior art.

[0006] The embodiment of the present invention adopts the following technical scheme: a device for detecting appearance defects of emergency light circuit boards, comprising a support frame, a detection flip structure, a size detection structure, a flatness detection structure, a circuit board fixed structure and a detection movable structure, wherein the support frame is vertically arranged, the detection flip structure is arranged on the support frame and the detection flip structure is rotatably connected to the support frame, the size detection structure is located on the detection flip structure, the detection movable structure is located on the side of the support frame, the circuit board fixed structure is horizontally arranged on the detection movable structure, the flatness detection structure is located on the size detection structure, and the flatness detection structure is arranged toward the circuit board fixed structure.

[0007] A further technical solution is that the detection flipping structure includes a flipping electric cylinder, a flipping seat and a flipping frame, the tail end of the flipping electric cylinder is hinged to the top of the support frame, the flipping frame is located on the flipping seat, the telescopic end of the flipping electric cylinder is connected to the flipping seat, and the flipping frame is rotatably connected to the support frame.

[0008] A further technical solution is that the size detection structure includes a rotating motor, a rotating gear, two rotating gear plates and two mounting plates, the rotating motor is located on the flip seat, the rotating gear is connected to the main shaft of the rotating motor, the two rotating gear plates are respectively arranged at the bottom of the flip seat, the two rotating gear plates are respectively slidably matched with the bottom of the flip seat, the two rotating gear plates are meshed with the rotating gear, and the two mounting plates are respectively connected to the bottom of the two rotating gear plates.

[0009] According to a further technical solution, a fixed electric cylinder is provided on the side wall of each mounting plate, a fixed plate is provided on the telescopic end of the fixed electric cylinder, and an electronic rangefinder is provided on the fixed plate.

[0010] According to a further technical solution, the detection moving structure includes a horizontal moving slide and two lifting electric cylinders, the two lifting electric cylinders are symmetrically arranged, the horizontal moving slide is horizontally arranged on the telescopic ends of the two lifting electric cylinders, and a rotating motor is provided on the moving end of the horizontal moving slide.

[0011] According to a further technical solution, the circuit board fixing structure includes a fixing frame and a plurality of vacuum adsorption plates, wherein the fixing frame is connected to the main shaft of the rotating motor, and the plurality of vacuum adsorption plates are arranged on the fixing frame at equal intervals.

[0012] A further technical solution is that the flatness detection structure includes a first level detection sensor, a second level detection sensor and a grid level detector. The first level detection sensor is horizontally arranged on a support frame, two second level detection sensors are provided and are respectively arranged at the upper end positions of two fixed plates, and two grid level detectors are provided. The two grid level detectors are respectively located at the bottom of two rotating tooth plates, and the grid level detectors are arranged toward the fixed frame.

[0013] A device and process for detecting appearance defects of emergency light circuit boards, the detection process comprising the following steps:

[0014] The first step is to place the circuit board to be tested horizontally on the top of the fixing frame, and then several vacuum adsorption plates work to adsorb the bottom of the circuit board to fix the circuit board on the fixing frame;

[0015] In the second step, the position of the circuit board can be moved horizontally by the horizontal moving slide, and the flatness of different positions on the circuit board can be tested. During the test, the two lifting electric cylinders move upward to move the circuit board to the bottom of the two mounting plates, so as to detect the size and flatness of the circuit board;

[0016] The third step is that during the size detection, the rotating motor drives the rotating gear to rotate, thereby driving the two rotating gear plates to move away from or close to each other on the flip seat, thereby driving the positions of the two mounting plates to move, and the positions of the two mounting plates are moved to both sides of the circuit board, and the length of the circuit board is detected by the electronic distance meter. During the detection, the position of the fixed plate is driven to move by the fixed electric cylinder, so that the fixed plate and the end of the circuit board are in conflict, so that the electronic distance meter and the circuit board are in contact, so that there will be no error in the distance measurement, which affects the accuracy of the detection;

[0017] The fourth step is to detect the thickness of the circuit board. At this time, the flip electric cylinder drives the flip seat to rotate on the support frame, so that the horizontally set flip frame is rotated to a vertical position, and the position of the electronic rangefinder is adjusted through the size detection structure to adapt to the detection of the circuit board thickness;

[0018] Step 5: When the width is detected, the rotating motor drives the fixed frame to rotate, and the circuit board on the fixed frame is rotated 90 degrees, so that the electronic distance meter can detect the width of the circuit board;

[0019] In the sixth step, the flatness of the circuit board is detected by using the first level detection sensor, the second level detection sensor and the grid level detector to detect whether the circuit board is flat.

[0020] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0021] Firstly, the rotating motor of the present invention drives the rotating gear to rotate, thereby driving the two rotating gear plates to move away from or approach each other on the flip seat, thereby driving the positions of the two mounting plates to move, and the positions of the two mounting plates are moved to the two sides of the circuit board, and the length of the circuit board is detected by the electronic distance meter. While detecting, the position of the fixed plate is driven to move by the fixed electric cylinder, so that the fixed plate and the end of the circuit board are in conflict, so that the electronic distance meter and the circuit board are in contact, so that there will be no error in the distance measurement, affecting the accuracy of the detection; when the thickness of the circuit board is detected, the flip seat is driven to rotate on the support frame by the flip electric cylinder, so that the horizontally arranged flip frame is rotated to a vertical position, and the position of the electronic distance meter is adjusted by the size detection structure to adapt to the detection of the thickness of the circuit board.

[0022] Secondly, the first level detection sensor and the second level detection sensor in the present invention emit rays to detect the flatness of the circuit, and the grid level detector emits horizontal grid lines to illuminate the circuit board. By observing and checking whether the grid lines on the circuit board are warped or sunken, it is determined whether the circuit board is flat and meets the needs of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

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

[0026] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the detection flipping structure in the present invention;

[0028] Figure 5 It is a three-dimensional structural schematic diagram of the size detection structure in the present invention;

[0029] Figure 6 It is a schematic diagram of a partial three-dimensional structure of the size detection structure in the present invention;

[0030] Reference numerals

[0031] Support frame 1, detection flip structure 2, flip electric cylinder 21, flip seat 22, flip frame 23, size detection structure 3, rotating motor 31, rotating gear 32, rotating gear plate 33, mounting plate 34, fixed electric cylinder 35, fixed plate 36, flatness detection structure 4, first level detection sensor 41, second level detection sensor 42, grid level detector 43, circuit board fixing structure 5, fixed frame 51, vacuum adsorption plate 52, detection moving structure 6, horizontal moving slide 61, lifting electric cylinder 62, rotating motor 63. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. 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 making creative work are within the scope of protection of the present invention.

[0033] The technical solutions provided by various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figures 1 to 6 As shown, an embodiment of the present invention provides a device for detecting appearance defects of emergency light circuit boards, including a support frame 1, a detection flip structure 2, a size detection structure 3, a flatness detection structure 4, a circuit board fixed structure 5 and a detection movable structure 6, wherein the support frame 1 is vertically arranged, the detection flip structure 2 is arranged on the support frame 1 and the detection flip structure 2 is rotatably connected to the support frame 1, the size detection structure 3 is located on the detection flip structure 2, the detection movable structure 6 is located beside the support frame 1, the circuit board fixed structure 5 is horizontally arranged on the detection movable structure 6, the flatness detection structure 4 is located on the size detection structure 3, and the flatness detection structure 4 is arranged toward the circuit board fixed structure 5.

[0035] Specifically, the detection flip structure 2 includes a flip electric cylinder 21, a flip seat 22 and a flip frame 23. The tail end of the flip electric cylinder 21 is hinged to the top of the support frame 1, and the flip frame 23 is located on the flip seat 22. The telescopic end of the flip electric cylinder 21 is connected to the flip seat 22, and the flip frame 23 is rotatably connected to the support frame 1; the size detection structure 3 includes a rotating motor 31, a rotating gear 32, two rotating tooth plates 33 and two mounting plates 34. The rotating motor 31 is located on the flip seat 22, and the rotating gear 32 is connected to the main shaft of the rotating motor 31. The two rotating tooth plates 33 are respectively arranged at the bottom of the flip seat 22, and the two rotating gears are connected to the main shaft of the rotating motor 31. The plates 33 are respectively slidably matched with the bottom of the flip seat 22, the two rotating tooth plates 33 are meshed with the rotating gear 32, and the two mounting plates 34 are respectively connected to the bottom of the two rotating tooth plates 33; a fixed electric cylinder 35 is provided on the side wall of each mounting plate 34, and a fixed plate 36 is provided on the telescopic end of the fixed electric cylinder 35, and an electronic rangefinder is provided on the fixed plate 36 (the electronic rangefinder belongs to the prior art and is not shown in the figure. When the size of the circuit board is detected, the length, width and thickness of the circuit board can be detected in real time by the electronic rangefinder. The electronic rangefinder is connected to a display in the prior art and can display the detected size in real time).

[0036] In this embodiment, the rotating motor 31 drives the rotating gear 32 to rotate, thereby driving the two rotating tooth plates 33 to move away from or approach each other on the flip seat 22, thereby driving the positions of the two mounting plates 34 to move, and the positions of the two mounting plates 34 are moved to the two sides of the circuit board, and the length of the circuit board is detected by the electronic distance meter. While detecting, the position of the fixed plate 36 is driven to move by the fixed electric cylinder 35, so that the fixed plate 36 is in conflict with the end of the circuit board, so that the electronic distance meter contacts the circuit board so that there will be no error in the distance measurement, affecting the accuracy of the detection; when the thickness of the circuit board is detected, the flip electric cylinder 21 drives the flip seat 22 to rotate on the support frame 1, thereby rotating the horizontally set flip frame 23 to a vertical position, and adjusting the position of the electronic distance meter through the size detection structure 3 to adapt to the detection of the thickness of the circuit board.

[0037] Specifically, the detection moving structure 6 includes a horizontal moving slide 61 and two lifting electric cylinders 62. The two lifting electric cylinders 62 are symmetrically arranged. The horizontal moving slide 61 is horizontally arranged on the telescopic ends of the two lifting electric cylinders 62. A rotating motor 63 is provided on the moving end of the horizontal moving slide 61. The horizontal moving slide 61 can drive the position of the circuit board to move horizontally, and the flatness of different positions on the circuit board can be detected. When performing the detection, the two lifting electric cylinders 62 are moved upward to move the position of the circuit board to the bottom of the two mounting plates 34, so as to detect the size and flatness of the circuit board. The rotating motor 63 is used to drive the position of the fixed frame 51 to rotate, and the position of the circuit board on the fixed frame 51 is rotated ninety degrees, so that the electronic rangefinder can detect the width of the circuit board.

[0038] Specifically, the circuit board fixing structure 5 includes a fixing frame 51 and a plurality of vacuum adsorption plates 52. The fixing frame 51 is connected to the main shaft of the rotating motor 63, and the plurality of vacuum adsorption plates 52 are arranged on the fixing frame 51 at equal intervals. The circuit board to be tested is horizontally placed on the top of the fixing frame 51, and then the plurality of vacuum adsorption plates 52 work to adsorb the bottom of the circuit board, and the circuit board is fixed and limited on the fixing frame 51, which can prevent the position of the circuit board from moving and offsetting when the circuit board is tested, thereby affecting the accuracy of the test.

[0039] Specifically, the flatness detection structure 4 includes a first level detection sensor 41, a second level detection sensor 42 and a grid level detector 43. The first level detection sensor 41 is horizontally arranged on the support frame 1. Two second level detection sensors 42 are provided and are respectively arranged at the upper end positions of the two fixed plates 36. Two grid level detectors 43 are provided, and the two grid level detectors 43 are respectively located at the bottom of the two rotating tooth plates 33, and the grid level detector 43 is arranged toward the fixed frame 51. The first level detection sensor 41, the second level detection sensor 42 and the grid level detector 43 belong to the prior art. The first level detection sensor 41 and the second level detection sensor 42 emit rays to detect the flatness of the circuit. The grid level detector 43 emits horizontal grid lines to irradiate the circuit board. By observing and checking whether the grid lines on the circuit board are warped or sunken, it is judged whether the circuit board is flat to meet the needs of use.

[0040] A device and process for detecting appearance defects of emergency light circuit boards, the detection process comprising the following steps:

[0041] In the first step, the circuit board to be tested is horizontally placed on the top of the fixing frame 51, and then a plurality of vacuum adsorption plates 52 work to adsorb the bottom of the circuit board to fix the circuit board on the fixing frame 51;

[0042] In the second step, the position of the circuit board can be moved horizontally by the horizontal moving slide 61, and the flatness of different positions on the circuit board can be tested. During the test, the two lifting cylinders 62 move upward to move the circuit board to the bottom of the two mounting plates 34, so as to test the size and flatness of the circuit board.

[0043] The third step is that during the size detection, the rotating motor 31 drives the rotating gear 32 to rotate, thereby driving the two rotating gear plates 33 to move away from or close to each other on the flip seat 22, thereby driving the positions of the two mounting plates 34 to move, and the positions of the two mounting plates 34 are moved to the two sides of the circuit board, and the length of the circuit board is detected by the electronic distance meter. At the same time, the position of the fixed plate 36 is driven to move by the fixed electric cylinder 35, so that the fixed plate 36 is in conflict with the end of the circuit board, so that the electronic distance meter is in contact with the circuit board so that there will be no error in the distance measurement, which affects the accuracy of the detection;

[0044] In the fourth step, when the thickness of the circuit board is detected, the flip seat 22 is driven to rotate on the support frame 1 by the flip electric cylinder 21, so that the horizontally arranged flip frame 23 is rotated to a vertical position, and the position of the electronic rangefinder is adjusted by the size detection structure 3 to adapt to the detection of the circuit board thickness;

[0045] Step 5: When the width is detected, the rotating motor 63 drives the fixed frame 51 to rotate, and the position of the circuit board on the fixed frame 51 is rotated by 90 degrees, so that the electronic rangefinder can detect the width of the circuit board;

[0046] In the sixth step, the flatness of the circuit board is detected by the first level detection sensor 41, the second level detection sensor 42 and the grid level detector 43 to detect whether the circuit board is flat.

[0047] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for detecting appearance defects of emergency light circuit boards, characterized in that: The invention comprises a support frame (1), a detection flip structure (2), a size detection structure (3), a flatness detection structure (4), a circuit board fixed structure (5) and a detection movable structure (6), wherein the support frame (1) is arranged vertically, the detection flip structure (2) is arranged on the support frame (1) and the detection flip structure (2) is rotatably connected to the support frame (1), the size detection structure (3) is located on the detection flip structure (2), the detection movable structure (6) is located beside the support frame (1), the circuit board fixed structure (5) is horizontally arranged on the detection movable structure (6), the flatness detection structure (4) is located on the size detection structure (3), and the flatness detection structure (4) is arranged toward the circuit board fixed structure (5).

2. The device for detecting appearance defects of emergency light circuit boards according to claim 1 is characterized in that: The detection flip structure (2) comprises a flip electric cylinder (21), a flip seat (22) and a flip frame (23); the tail end of the flip electric cylinder (21) is hinged to the top of the support frame (1); the flip frame (23) is located on the flip seat (22); the telescopic end of the flip electric cylinder (21) is connected to the flip seat (22); and the flip frame (23) is rotatably connected to the support frame (1).

3. The device for detecting appearance defects of emergency light circuit boards according to claim 2 is characterized in that: The size detection structure (3) comprises a rotating motor (31), a rotating gear (32), two rotating tooth plates (33) and two mounting plates (34); the rotating motor (31) is located on the flip seat (22); the rotating gear (32) is connected to the main shaft of the rotating motor (31); the two rotating tooth plates (33) are respectively arranged at the bottom of the flip seat (22); the two rotating tooth plates (33) are respectively slidably matched with the bottom of the flip seat (22); the two rotating tooth plates (33) are meshed with the rotating gear (32); and the two mounting plates (34) are respectively connected to the bottom of the two rotating tooth plates (33).

4. The device for detecting appearance defects of emergency light circuit boards according to claim 3 is characterized in that: A fixed electric cylinder (35) is provided on the side wall of each mounting plate (34), a fixed plate (36) is provided on the telescopic end of the fixed electric cylinder (35), and an electronic distance meter is provided on the fixed plate (36).

5. The device for detecting appearance defects of emergency light circuit boards according to claim 1 is characterized in that: The detection moving structure (6) comprises a horizontal moving slide (61) and two lifting electric cylinders (62), wherein the two lifting electric cylinders (62) are symmetrically arranged, the horizontal moving slide (61) is horizontally arranged on the telescopic ends of the two lifting electric cylinders (62), and a rotating motor (63) is arranged on the moving end of the horizontal moving slide (61).

6. The device for detecting appearance defects of emergency light circuit boards according to claim 1 is characterized in that: The circuit board fixing structure (5) comprises a fixing frame (51) and a plurality of vacuum adsorption disks (52); the fixing frame (51) is connected to the main shaft of the rotating motor (63); and the plurality of vacuum adsorption disks (52) are arranged on the fixing frame (51) at equal intervals.

7. The device for detecting appearance defects of emergency light circuit boards according to claim 1 is characterized in that: The flatness detection structure (4) comprises a first level detection sensor (41), a second level detection sensor (42) and a grid level detector (43); the first level detection sensor (41) is horizontally arranged on the support frame (1); two second level detection sensors (42) are provided and are respectively arranged at the upper ends of two fixed plates (36); two grid level detectors (43) are provided, and the two grid level detectors (43) are respectively located at the bottom of two rotating tooth plates (33), and the grid level detectors (43) are arranged toward the fixed frame (51).

8. The device and process for detecting appearance defects of emergency light circuit boards according to any one of claims 1 to 7, characterized in that: The detection process comprises the following steps: In the first step, the circuit board to be tested is horizontally placed on the top of the fixing frame (51), and then a plurality of vacuum adsorption plates (52) work to adsorb the bottom of the circuit board to fix the circuit board on the fixing frame (51); In the second step, the position of the circuit board can be moved horizontally by the horizontal moving slide (61), and the flatness of different positions on the circuit board can be detected. During the detection, the two lifting electric cylinders (62) move upward to move the circuit board to the bottom of the two mounting plates (34) so ​​as to detect the size and flatness of the circuit board; In the third step, during the size detection, the rotating motor (31) drives the rotating gear (32) to rotate, thereby driving the two rotating tooth plates (33) to move away from or approach each other on the flip seat (22), thereby driving the positions of the two mounting plates (34) to move, and the positions of the two mounting plates (34) are moved to the two sides of the circuit board, and the length of the circuit board is detected by the electronic distance meter. During the detection, the position of the fixed plate (36) is driven to move by the fixed electric cylinder (35), so that the fixed plate (36) and the end of the circuit board are in conflict, so that the electronic distance meter and the circuit board are in contact, so that there will be no error in the distance measurement, which affects the accuracy of the detection; In the fourth step, when the thickness of the circuit board is detected, the turning electric cylinder (21) drives the turning seat (22) to rotate on the support frame (1), thereby rotating the horizontally arranged turning frame (23) to a vertical position, and adjusting the position of the electronic distance meter through the size detection structure (3) to adapt to the detection of the circuit board thickness; In the fifth step, when the width is detected, the rotating motor (63) drives the fixed frame (51) to rotate, and the position of the circuit board on the fixed frame (51) is rotated by ninety degrees, so that the electronic distance meter can detect the width of the circuit board; In the sixth step, the flatness of the circuit board is detected by using the first level detection sensor (41), the second level detection sensor (42) and the grid level detector (43) to detect whether the circuit board is flat.

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