Circuit board dust removal device for AOI detection equipment

Abstract

The utility model relates to the field of AOI detection equipment, in particular to a circuit board dust removal device for AOI detection equipment, which comprises a frame, an optical head component is slidably connected in the frame through a transmission module, a feeding groove is formed in the side surface of the frame, and a detection table for placing a circuit board is arranged in the feeding groove through a driving piece. The driving piece is used for driving the detection table to move; the side face of the frame is provided with a dust removal assembly, the dust removal assembly is used for conducting dust removal and cleaning on the two sides of the circuit board, on one hand, cleaning and dust removal can be conducted on the two sides of the circuit board, and on the other hand, dust or oil dirt accumulated on the surface of the circuit board can be effectively avoided. And the distance between the cleaning cotton roller and the detection table can be adjusted through the movable seat and the fixed seat, the situation that the position of the cleaning cotton roller is changed due to mistaken touch is avoided, the structure is simple, operation is easy and convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the field of AOI testing equipment, in particular to a circuit board dust removal device for AOI testing equipment. Background Art

[0002] AOI usually refers to automatic optical inspection, which is a technology that uses optical methods to inspect and control the quality of electronic components, printed circuit boards (PCBs) or other manufactured products. AOI inspection equipment uses high-resolution cameras and image processing algorithms to detect defects, errors or defects on the surface of products. This equipment can help manufacturers improve production efficiency, reduce artificial defects and improve product quality.

[0003] The AOI inspection equipment uses a camera to perform optical inspection on the circuit board and then determines whether the circuit board surface has defects. However, considering that dust accumulation or other impurities on the surface of the circuit board may cause the detection accuracy of the camera to decrease, it is necessary to use a circuit board dust removal device for the AOI inspection equipment to clean the circuit board. For example, the prior art Chinese patent announcement number "CN210015059U" discloses an AOI inspection equipment, including a frame and a workbench slidably arranged on the frame, the workbench is used to adsorb and fix the FPC board, the frame is provided with a driving part for driving the workbench to slide, the frame is provided with a high-definition CCD camera above the workbench, and is characterized in that a dust sticking assembly is provided on the frame, the dust sticking assembly includes support arms arranged on both sides of the workbench, a support shaft installed on the support arm, and a dust sticking roller sleeved outside the support shaft, and the outer roller surface of the dust sticking roller is used to contact the FPC board on the workbench. The utility model has the effect of improving the efficiency of detection work.

[0004] Some AOI inspection equipment uses sticky rollers to clean the dust on the surface of the circuit board. However, in actual operation, it is considered that similar sticky rollers lack measures to fix the rotating shaft, which may cause the sticky roller to rotate in case of accidental touch. On the other hand, it is inconvenient to replace the sticky roller, which affects the inspection efficiency of the circuit board. In addition, dust is collected by means of an air pump, but it is not convenient to clean the dust. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that the dust sticking roller may rotate due to the influence of accidental touch and it is inconvenient to clean the collected dust, and proposes a circuit board dust removal device for AOI inspection equipment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A circuit board dust removal device for AOI inspection equipment is designed, comprising a frame, an optical head component is slidably connected to the frame through a transmission module, and a loading trough is opened on the side of the frame, a detection table for placing circuit boards is arranged in the loading trough through a driving member, and the driving member is used to drive the detection table to move;

[0008] Wherein, a dust removal component is provided on the side of the frame, and the dust removal component is used to remove dust and clean both sides of the circuit board.

[0009] Furthermore, the driving member includes a support frame fixedly installed in the feeding trough, a pair of rollers are rotatably connected to the bottom sides of the support frame, and the top is slidably connected to the detection platform, a synchronous belt is sleeved between the pair of rollers, and the detection platform is fixedly connected to one side of the synchronous belt through a fixed seat.

[0010] Furthermore, the dust removal assembly includes a pair of support plates fixedly installed on the side of the frame, the side of the support plate is rotatably connected to a connecting plate via a rotating shaft, one end of one of the connecting plates is rotatably connected to a rotating seat, and a round rod is fixedly connected to the side of the rotating seat, and a through groove is opened on the side of the other connecting plate, a locking bolt is threadedly connected to the through groove, a cleaning cotton roller is rotatably connected to the periphery of the round rod, and one end of the cleaning cotton roller can be arranged in the through groove and fixed by the locking bolt.

[0011] Furthermore, one of the ends of the rotating shaft is extended and fixedly installed with a limit plate and a movable seat in a slidable connection. The end of the rotating shaft is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the limit plate and the side of the movable seat. The inner hole surface of the movable seat and the outer wall of the rotating shaft are respectively provided with a limit groove and a limit column, and the limit groove and the limit column are slidably connected.

[0012] Furthermore, a fixing seat is fixedly installed on the side of the support plate at the periphery of the rotating shaft, a plurality of recessed parts are arranged on the side of the fixing seat, and a protrusion that can be engaged with the recessed parts is arranged on the side of the movable seat.

[0013] Furthermore, an air pump is fixedly installed on the side of the frame, a cavity is provided in the testing platform, and the cavity is connected to the air pump through an air suction hose. A recessed portion is provided on the top of the testing platform, and a step portion for supporting a circuit board is extended on the inner side above the recessed portion. A plurality of air vents communicating with the cavity are formed on the end face of the recessed portion, and a filter cotton net is laid on the end face.

[0014] Furthermore, an electric push rod is fixedly installed on the side of the detection platform, and a straight groove is penetrated below the step portion, a movable plate is slidably connected in the straight groove, the movable plate is connected to the output end of the electric push rod, and a cleaning brush and a scraper are respectively provided on the upper and lower sides thereof, and a collecting groove is provided on the side of the cavity, which penetrates the recessed portion upward.

[0015] The utility model proposes a circuit board dust removal device for AOI inspection equipment, which has the beneficial effects that: the utility model can, through the action of the cleaning cotton roller and the brush, on the one hand, clean and remove dust from both sides of the circuit board, and on the other hand, can effectively avoid the situation where the detection accuracy of the optical camera is reduced due to the accumulation of dust or oil on the surface of the circuit board, and the distance between the cleaning cotton roller and the inspection table can be adjusted by using the movable seat and the fixed seat, and the position of the cleaning cotton roller will not change due to accidental touch, and the utility model has a simple structure, easy operation and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 2 A schematic diagram of the enlarged structure of area A;

[0018] Figure 3 It is a structural schematic diagram of the testing platform of the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area B;

[0020] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of region C.

[0021] In the figure: 1. frame; 2. optical head component; 3. feeding chute; 4. driving part; 41. supporting frame; 42. roller; 43. synchronous belt; 5. testing table; 6. dust removal component; 61. supporting plate; 62. rotating shaft; 63. connecting plate; 631. rotating seat; 632. round rod; 633. through groove; 634. cleaning cotton roller; 64. limiting plate; 65. movable seat; 66. spring; 661. fixed seat; 67. vacuum pump; 68. step part; 681. electric push rod; 682. straight groove; 683. movable rod; 69. vent. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5 A circuit board dust removal device for AOI inspection equipment comprises a frame 1, an optical head component 2 is slidably connected to the frame 1 through a transmission module, and a loading trough 3 is provided on the side thereof, a detection table 5 for placing circuit boards is provided in the loading trough 3 through a driving member 4, and the driving member 4 is used to drive the detection table 5 to move;

[0024] Wherein, a dust removal component 6 is provided on the side of the frame 1, and the dust removal component 6 is used to remove dust and clean both sides of the circuit board.

[0025] It is worth mentioning that the optical head component 2 mainly includes a control unit, an optical lens, a detection light source and other components used for detecting or assisting the detection of the circuit board.

[0026] Furthermore, the driving member 4 includes a support frame 41 fixedly installed in the loading trough 3, a pair of rollers 42 are rotatably connected to the bottom sides of the support frame 41, and the top is slidably connected to the detection platform 5, a synchronous belt 43 is sleeved between the pair of rollers 42, and the detection platform 5 is fixedly connected to one side of the synchronous belt 43 through a fixed seat.

[0027] It should be added that the roller 42 is an electric roller in the prior art, and the synchronous belt 43 is driven to rotate by a pair of rollers 42, so as to achieve the purpose of transporting the circuit board for inspection using the inspection table 5, wherein one end of the support frame 41 needs to be extended into the frame 1 to facilitate the inspection of the optical head component 2.

[0028] Furthermore, the dust removal assembly 6 includes a pair of support plates 61 fixedly installed on the side of the frame 1, and the side of the support plate 61 is rotatably connected to a connecting plate 63 through a rotating shaft 62, one end of one of the connecting plates 63 is rotatably connected to a rotating seat 631, and a round rod 632 is fixedly connected to the side of the rotating seat 631, and a through groove 633 is opened on the side of the other connecting plate 63, and a locking bolt is threadedly connected to the through groove 633, and the outer periphery of the round rod 632 is rotatably connected to a cleaning cotton roller 634, and one end of the round rod 632 can be set in the through groove 633 and fixed by the locking bolt.

[0029] It is worth mentioning that when the rotating shaft 62 is disposed in the through groove 633, it is fixed by the locking bolt. In addition, because the rotating seat 631 can drive the rotating shaft 62 to rotate, the cleaning cotton roller 634 can be replaced after the rotating shaft 62 is released.

[0030] In more detail, one end of the rotating shaft 62 is extended and fixedly installed with a limit plate 64 and a movable seat 65 that is slidably connected. A spring 66 is sleeved on the end of the rotating shaft 62. The two ends of the spring 66 are respectively fixedly connected to the side of the limit plate 64 and the movable seat 65. The inner hole surface of the movable seat 65 and the outer wall of the rotating shaft 62 are respectively provided with a limit groove and a limit column, and the limit groove and the limit column are slidably connected.

[0031] In general, a fixing seat 661 is fixedly installed on the side of the support plate 61 at the periphery of the rotating shaft 62 , and a plurality of recesses are provided on the side of the fixing seat 661 , and a protrusion that can engage with the recesses is provided on the side of the movable seat 65 .

[0032] It is worth mentioning that the movable seat 65 is clamped with the fixed seat 661 under the action of the spring 66, and because of the limiting groove and the limiting column, the cleaning cotton roller 634 can be fixed, and the position change of the cleaning cotton roller 634 caused by accidental touch can be avoided;

[0033] After the movable seat 65 is pushed to separate from the fixed seat 661, the connecting plate 63 is driven to rotate by driving the rotating shaft 62 to adjust the distance between the cleaning cotton roller 634 and the circuit board.

[0034] Of course, a bearing may also be fixedly installed on the periphery of the movable seat 65, so that it is convenient to drive the rotating shaft 62 to rotate through the handle.

[0035] In addition, an air pump 67 is fixedly installed on the side of the frame 1, a cavity is provided in the detection platform 5, and the cavity is connected to the air pump 67 through an air suction hose, a recessed portion is provided on the top of the detection platform 5, and a step portion 68 for supporting a circuit board is extended on the inner side above the recessed portion, a plurality of air vents 69 communicating with the cavity are opened on the end face of the recessed portion, and a filter cotton net is laid on the end face.

[0036] Finally, an electric push rod 681 is fixedly installed on the side of the detection platform 5, and a straight groove 682 is penetrated below the step portion 68, and a movable rod 683 is slidably connected in the straight groove 682. The movable rod 683 is connected to the output end of the electric push rod 681, and a cleaning brush and a scraper are respectively provided on the upper and lower sides thereof, and a collecting groove is provided on the side of the cavity, and the collecting groove penetrates the recessed portion upward.

[0037] It is worth mentioning that, due to the presence of the step portion 68, there is a gap between the circuit board and the cavity, which facilitates the vacuum pump 67 to attract dust, and the movable rod 683 moves under the action of the electric push rod 681, and then cooperates with the cleaning cotton roller 634 to clean both sides of the circuit board;

[0038] The cleaning brush cleans and removes dust from the bottom of the circuit board, and the scraper is a rubber plate that can cooperate with the collecting groove to collect dust on the filter cotton net.

[0039] Working mode: When working, the circuit board is placed on the step portion 68, and the roller 42 drives the synchronous belt 43 to rotate, so as to achieve the effect of transporting the circuit board for testing using the test table 5;

[0040] Before the test, it is necessary to push the movable seat 65 to move so that the movable seat 65 is separated from the fixed seat 661, and then the connecting plate 63 is driven to rotate by rotating the rotating shaft 62 by the handle. After the cleaning cotton roller 634 reaches a suitable position, the movable seat 65 is released, and the movable seat 65 is engaged with the fixed seat 661 under the action of the spring 66 to fix the cleaning cotton roller 634;

[0041] Finally, while the testing platform 5 is moving, the cleaning cotton roller 634 cleans the top surface of the circuit board, and while the testing platform 5 is moving, the electric push rod 681 drives the movable rod 683 to clean the bottom of the circuit board with a cleaning brush, and cleans the dust into the collection tank through a scraper.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board dust removal device for AOI inspection equipment, comprising a frame (1), characterized in that: An optical head component (2) is slidably connected to the frame (1) via a transmission module, and a loading trough (3) is provided on the side thereof. A detection table (5) for placing a circuit board is provided in the loading trough (3) via a driving member (4), and the driving member (4) is used to drive the detection table (5) to move; Wherein, a dust removal component (6) is provided on the side of the frame (1), and the dust removal component (6) is used to remove dust and clean both sides of the circuit board.

2. The circuit board dust removal device for AOI inspection equipment according to claim 1, characterized in that: The driving member (4) comprises a support frame (41) fixedly installed in the feeding trough (3), a pair of rollers (42) are rotatably connected to the two sides of the bottom of the support frame (41), and the top of the support frame is slidably connected to the detection platform (5), a synchronous belt (43) is sleeved between the pair of rollers (42), and the detection platform (5) is fixedly connected to one side of the synchronous belt (43) through a fixed seat.

3. The circuit board dust removal device for AOI inspection equipment according to claim 1, characterized in that: The dust removal assembly (6) comprises a pair of support plates (61) fixedly mounted on the side of the frame (1), the side of the support plate (61) being rotatably connected to a connecting plate (63) via a rotating shaft (62), one end of one of the connecting plates (63) being rotatably connected to a rotating seat (631), and a round rod (632) being fixedly connected to the side of the rotating seat (631), a through groove (633) being provided on the side of the other connecting plate (63), a locking bolt being threadedly connected to the through groove (633), a cleaning cotton roller (634) being rotatably connected to the periphery of the round rod (632), and one end of the cleaning cotton roller being capable of being disposed in the through groove (633) and being fixed by the locking bolt.

4. The circuit board dust removal device for AOI inspection equipment according to claim 3, characterized in that: One end of the rotating shaft (62) is extended and fixedly mounted with a limit plate (64) and slidably connected with a movable seat (65); a spring (66) is sleeved on the end of the rotating shaft (62); two ends of the spring (66) are respectively fixedly connected to the side surfaces of the limit plate (64) and the movable seat (65); the inner hole surface of the movable seat (65) and the outer wall of the rotating shaft (62) are respectively provided with a limit groove and a limit column; the limit groove and the limit column are slidably connected.

5. The circuit board dust removal device for AOI inspection equipment according to claim 4, characterized in that: A fixed seat (661) is fixedly installed on the side of the support plate (61) at the periphery of the rotating shaft (62), and a plurality of recessed portions are provided on the side of the fixed seat (661). A protruding portion capable of engaging with the recessed portion is provided on the side of the movable seat (65).

6. The circuit board dust removal device for AOI inspection equipment according to claim 5, characterized in that: An air pump (67) is fixedly mounted on the side of the frame (1); a cavity is provided inside the test bench (5), and the cavity is connected to the air pump (67) via an air suction hose; a recess is provided on the top of the test bench (5), and a step portion (68) for supporting a circuit board is extended on the inner side above the recess, and a plurality of air holes (69) communicating with the cavity are provided on the end surface of the recess, and a filter cotton net is laid on the end surface.

7. The circuit board dust removal device for AOI inspection equipment according to claim 6, characterized in that: An electric push rod (681) is fixedly mounted on the side of the detection platform (5), and a straight groove (682) is penetrated below the step portion (68), a movable rod (683) is slidably connected in the straight groove (682), the movable rod (683) is connected to the output end of the electric push rod (681), and a cleaning brush and a scraper are respectively provided on the upper and lower sides thereof, and a collecting groove is provided on the side of the cavity, and the collecting groove penetrates the recessed portion upward.

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