A visual inspection system for electronic computer circuit board soldering

Abstract

The application discloses a kind of visual inspection systems for electronic computer circuit board welding, it is related to circuit board visual inspection technical field, including installation box, further include: rolling mechanism, it is connected with installation box, for rolling detection piece and make it deformation, make the gap of welding place larger;Visual swing detection mechanism, it is connected with installation box, located the bottom of rolling mechanism;The present application installs rolling mechanism and makes mobile plate one and mobile plate two drive the U-shaped frame and pressing wheel under movement, pressing wheel moves in the process on circuit board rolling, the bending position of circuit board is changed in the process of rolling, and the position of the solder joint of component and circuit board appears gap after circuit board bending, and makes the position of virtual welding tear, the expansion of gap facilitates visual inspection, improve the precision rate of visual inspection, circuit board bending can make virtual welding position tear, the position of virtual welding tear can obtain circuit board welding problem in advance, guarantee the use quality of later circuit board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board visual inspection, and particularly relates to a visual inspection system for electronic computer circuit board welding. BACKGROUND

[0002] Circuit board welding is an important electronic process, and BGA welding adopts the principle of reflow soldering. The welding process is roughly divided into four stages of preheating, holding, reflowing and cooling, each stage having specific temperature and time requirements to ensure welding quality.

[0003] The quality of circuit board welding is particularly important. If there are problems such as virtual welding and false welding at the welding position, the weak connection points may be broken under subsequent transportation or impact, affecting the normal use of the machine equipment. However, virtual welding and false welding are different from the situation of component lifting, and are difficult to find, so that poor quality circuit boards can easily flow into the market. SUMMARY

[0004] The present application provides a visual inspection system for electronic computer circuit board welding to solve the above problems in the prior art.

[0005] To achieve the above purpose, the present application adopts the following technical scheme:

[0006] A visual inspection system for electronic computer circuit board welding, comprising a mounting box, further comprising:

[0007] A rolling mechanism connected with the mounting box for rolling the detection piece to deform it and make the gap at the welding position larger;

[0008] A visual swing detection mechanism connected with the mounting box and located at the bottom of the rolling mechanism for acquiring the gap between the deformed component and the detection piece from multiple angles;

[0009] A driving mechanism connected with the mounting box for driving the visual swing detection mechanism and the rolling mechanism to operate.

[0010] Further, the mounting box comprises a counter, a mounting opening is formed in the top of the counter, a box body is fixed in the mounting opening, a box cover is rotatably connected to the top of the box body, an observation window is installed on the top of the box cover, a drawer is installed on one side of the counter, and a cabinet door is installed on one side of the counter.

[0011] Further, the rolling mechanism comprises a reciprocating screw one rotationally connected to the inner wall of the box cover, one end of the reciprocating screw one is externally provided with a gear three, the reciprocating screw one is externally provided with a moving plate one in a threaded mode, the moving plate one is internally provided with two guide rods one, the guide rods one are fixed to the inner wall of the box cover, the reciprocating screw one and the guide rods one are externally provided with a moving plate two, the moving plate two and the moving plate one are fixedly provided with two connecting plates, the bottom of the moving plate one and the moving plate two are fixedly provided with a plurality of U-shaped mounting frames, and both sides of the U-shaped mounting frames are rotationally connected with pressing wheels.

[0012] Further, the visual swing detection mechanism comprises a plurality of light frames fixed to the inner wall of the bottom of the box body, the number of the light frames is the same as that of the U-shaped mounting frames and the positions correspond, the light frames are internally provided with a plurality of mounting columns, the mounting columns are externally provided with circuit boards, the electronic elements of the circuit boards are directed downward, the mounting columns are fixedly connected to the bottom inner wall of the box body, a plurality of material leakage openings are formed in the bottom of the box body, the number of the material leakage openings is the same as that of the light frames and the light frames are externally provided in the material leakage openings.

[0013] Further, the visual swing detection mechanism comprises two visual cameras provided in the material leakage openings in a sleeved mode, the bottom ends of the visual cameras are rotationally connected with mounting frames through rotating shafts one, the same end of the rotating shafts one connected with the two visual cameras in the material leakage openings is fixedly provided with a bevel gear one, the sides away from each other of the two bevel gears one are engaged with bevel gears two, the bevel gears two are internally fixedly provided with rotating shafts two, the rotating shafts two are rotationally connected with mounting plates, one side of the mounting plates is rotationally connected with the mounting frames, the ends away from each other of the two rotating shafts two are provided with gear two, the top of the gear two is engaged with a plurality of racks one, the racks one are fixed to the bottom of the box body, the bottom of the gear two is provided with a plurality of racks two, the gear two is engaged with the racks two during movement, the racks two are fixedly connected to the top racks one, and the racks one and the racks two are staggered.

[0014] The bottom of the mounting frame is fixedly provided with a moving block and two guide blocks, the moving block is internally provided with a reciprocating screw two in a threaded mode, one end of the reciprocating screw two is provided with a gear four, the reciprocating screw two is rotationally connected to the outer wall of the bottom of the box body, the guide blocks are internally provided with guide rods two, the guide rods two are fixed to the outer wall of the bottom of the box body, the bottom of the box body is provided with a gear opening in a penetrating mode, and the gear four is provided in the inside of the gear opening.

[0015] Further, the driving mechanism comprises a motor fixed to the side wall of the box body, one end of the output shaft of the motor is fixedly provided with a gear one, one side of the gear one is engaged with the gear four, and the other side of the gear one is engaged with the gear three.

[0016] Further, one side of the counter is provided with a controller, and the controller is electrically connected with the motor, the light frame and the visual camera.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1、The rolling mechanism is installed, so that the first moving plate and the second moving plate drive the U-shaped frame and the pressing wheel below to move, the pressing wheel rolls on the circuit board during movement, the bending position of the circuit board is changed during rolling, gaps appear between the components and the soldering points of the circuit board after the circuit board is bent, and the virtual soldering position is torn, the expansion of the gap facilitates visual detection, improves the accuracy of visual detection, and the bending of the circuit board can tear the virtual soldering position, tearing the virtual soldering position can obtain the circuit board welding problem in advance, and ensure the use quality of the circuit board in the later period.

[0019] 2、The visual swing detection mechanism is installed, so that the visual camera swings back and forth for detection, the swing detection can obtain data of the electronic components from multiple angles, the gaps and the distinctness of the shadows obtained at different angles are different, and the rolling mechanism is matched to expand the gap between the components and the circuit board, increase the gap width and improve the distinctness of the shadows, so that the false soldering and the virtual soldering of the components are accurately identified, and subsequent repair welding is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The present application provides a visual detection system installation box structure diagram for electronic computer circuit board welding.

[0021] Figure 2 The present application provides a visual detection system drawer structure diagram for electronic computer circuit board welding.

[0022] Figure 3 The present application provides a visual detection system rolling mechanism structure diagram for electronic computer circuit board welding.

[0023] Figure 4 The present application provides a visual detection system visual swing detection mechanism structure diagram for electronic computer circuit board welding.

[0024] Figure 5 The present application provides a visual detection system box body cross-section structure diagram for electronic computer circuit board welding.

[0025] Figure 6 The present application provides a visual detection system box cover open state structure diagram for electronic computer circuit board welding.

[0026] Figure 7 The present application provides a visual detection system box cover open state structure diagram for electronic computer circuit board welding. Figure 6 The present application provides a visual detection system box cover open state structure diagram for electronic computer circuit board welding.

[0027] Figure 8 For Figure 4 Amplification structure schematic diagram in B.

[0028] In the figure: 1, installation box; 11, counter; 12, cabinet door; 13, drawer; 14, box body; 15, box cover; 16, observation window; 2, rolling mechanism; 21, reciprocating screw one; 22, gear three; 23, guide rod one; 24, moving plate one; 25, connecting plate; 26, moving plate two; 27, U-shaped mounting bracket; 28, pressing wheel; 3, visual swing detection mechanism; 31, light frame; 32, mounting column; 33, material leakage port; 34, circuit board; 35, reciprocating screw two; 36, gear four; 37, moving block; 38, mounting bracket; 39, visual camera; 310, bevel gear one; 311, mounting plate; 312, rotating shaft two; 313, bevel gear two; 314, gear two; 315, multi-section rack one; 316, multi-section rack two; 317, gear port; 318, guide rod two; 319, guide block; 4, driving mechanism; 41, motor; 42, gear one. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eight" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connection" should be broadly understood, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Embodiment: Reference Figures 1-8 A visual detection system for welding electronic computer circuit board, comprising a mounting box 1, further comprising:

[0033] A rolling mechanism 2 connected with the mounting box 1, used for rolling detection piece to make it deform and make the gap of the welding place larger;

[0034] A visual swing detection mechanism 3 connected with the mounting box 1, located at the bottom of the rolling mechanism 2, used for multi-view to obtain the gap between the deformed component and the detection piece;

[0035] A driving mechanism 4 connected with the mounting box 1, used for driving the visual swing detection mechanism 3 and the rolling mechanism 2 to operate.

[0036] The mounting box 1 comprises a counter 11, the top of the counter 11 is provided with a mounting port, the inside of the mounting port is fixedly provided with a box body 14, the top of the box body 14 is rotatably connected with a box cover 15, the top of the box cover 15 is provided with an observation window 16, one side of the counter 11 is provided with a drawer 13, and one side of the counter 11 is provided with a cabinet door 12.

[0037] The rolling mechanism 2 comprises a reciprocating screw one 21 rotatably connected with the inner wall of the box cover 15, the outer end of the reciprocating screw one 21 is provided with a gear three 22, the outer part of the reciprocating screw one 21 is threadedly sleeved with a moving plate one 24, the inside of the moving plate one 24 is sleeved with two guide rods one 23, the guide rods one 23 are fixedly connected with the inner wall of the box cover 15, the outer part of the reciprocating screw one 21 and the guide rods one 23 is sleeved with a moving plate two 26, two connecting plates 25 are fixedly connected between the moving plate one 24 and the moving plate two 26, the bottom of the moving plate one 24 and the moving plate two 26 is fixedly provided with a plurality of U-shaped mounting racks 27, and the two sides of the U-shaped mounting racks 27 are rotatably connected with pressing wheels 28;

[0038] The circuit board 34 is installed downward on the mounting column 32, and then the box cover 15 is covered, and after covering, the pressing wheel 28 is in contact with the edge of the circuit board 34, and the circuit board 34 is bent to a slight arc, the controller controls the motor 41 to drive the gear one 42 to rotate, the gear one 42 drives the gear three 22 and the gear four 36 to rotate, the gear three 22 drives the reciprocating screw one 21 to rotate, the reciprocating screw one 21 drives the moving plate one 24 to move, the moving plate one 24 drives the moving plate two 26 to move through the connecting plate 25, the moving plate one 24 and the moving plate two 26 drive the U-shaped mounting frame 27 and the pressing wheel 28 below to move, the pressing wheel 28 moves on the circuit board 34 during the movement, and the bending position of the circuit board 34 is changed during the movement. The solder joint position of the electronic component and the circuit board 34 will have a gap after the circuit board 34 is bent.

[0039] The visual swing detection mechanism 3 includes a plurality of light frames 31 fixed on the inner wall of the bottom of the box body 14, the number of the light frames 31 is the same as that of the U-shaped mounting frames 27 and corresponds in position, the inside of the light frame 31 is sleeved with a plurality of mounting columns 32, the outside of the plurality of mounting columns 32 is provided with a circuit board 34, the electronic components of the circuit board 34 are downward, the mounting column 32 is fixedly connected with the bottom inner wall of the box body 14, a plurality of material leakage holes 33 are formed in the bottom of the box body 14, the number of the material leakage holes 33 is the same as that of the light frames 31 and the light frames 31 are sleeved outside the material leakage holes 33.

[0040] The visual swing detection mechanism 3 includes two visual cameras 39 sleeved in the material leakage hole 33, the bottom end of the plurality of visual cameras 39 is rotatably connected with a mounting frame 38 through a shaft one, the same end of the shaft one connected with the two visual cameras 39 in the material leakage hole 33 is fixedly provided with a bevel gear one 310, the sides away from each other of the two bevel gear ones 310 are engaged with bevel gear two 313, the inside of the bevel gear two 313 is fixedly provided with a shaft two 312, the outside of the shaft two 312 is rotatably connected with a mounting plate 311, one side of the mounting plate 311 is rotatable with the mounting frame 38, the ends away from each other of the two shaft two 312 are provided with a gear two 314, the top of the gear two 314 is engaged with a plurality of racks one 315, the plurality of racks one 315 is fixed on the bottom of the box body 14, the bottom of the gear two 314 is provided with a plurality of racks two 316, the gear two 314 is engaged with the plurality of racks two 316 during movement, the plurality of racks two 316 is fixedly connected with the plurality of racks one 315 at the top, the plurality of racks one 315 and the plurality of racks two 316 are staggered arranged;

[0041] The bottom of the mounting frame 38 is fixed with a moving block 37 and two guide blocks 319, the inside of the moving block 37 is threaded to cover the reciprocating screw two 35, one end of the reciprocating screw two 35 is provided with a gear four 36, the reciprocating screw two 35 is rotationally connected to the bottom outer wall of the box body 14, the inside of the guide block 319 is covered with a guide rod two 318, the guide rod two 318 is fixed to the bottom outer wall of the box body 14, the bottom of the box body 14 is provided with a gear hole 317, and the gear four 36 is covered in the inside of the gear hole 317;

[0042] The reciprocating screw two 35 rotates to drive the moving block 37 and the mounting frame 38 to move, the mounting frame 38 moves to drive the shaft one, the bevel gear one 310, the visual camera 39, the bevel gear two 313, the shaft two 312 and the gear two 314 to move, the gear two 314 is first engaged with the first segment of the multi-segmented gear one 315 and rotates by itself, the gear two 314 rotates through the shaft two 312, the bevel gear two 313 and the bevel gear one 310, the bevel gear one 310 drives the shaft one to rotate and drives the visual camera 39 to rotate, then the gear two 314 is engaged with the first segment of the multi-segmented gear two 316, so that the visual camera 39 rotates back to the reset position, realizing the swing detection of the visual camera 39, the swing detection can obtain the gap of the electronic components from multiple angles, cooperating with the pressing wheel 28 to press the circuit board 34, expanding the gap between the components and the circuit board 34, so as to accurately identify the false welding and virtual welding of the components.

[0043] The driving mechanism 4 includes a motor 41 fixed to the side wall of the box body 14, one end of the output shaft of the motor 41 is fixed with a gear one 42, one side of the gear one 42 is engaged with the gear four 36, and the other side of the gear one 42 is engaged with the gear three 22.

[0044] One side of the counter 11 is provided with a controller, and the controller is electrically connected with the motor 41, the light frame 31 and the visual camera 39.

[0045] Working principle:

[0046] The circuit board 34 is installed downward on the mounting column 32, and then the box cover 15 is covered, after covering, the pressing wheel 28 is in contact with the edge of the circuit board 34, and the circuit board 34 is bent to a slight arc, after the circuit board 34 is bent, the gap appears between the component and the welding point position of the circuit board 34, which facilitates the detection of false welding and virtual welding of the welding point, and the visual camera 39 and the light frame 31 are started, the light frame 31 irradiates the downward side of the circuit board 34, the controller controls the motor 41 to drive the gear one 42 to rotate, the gear three 22 is engaged with the gear one 42 after the box cover 15 is covered, the gear one 42 drives the gear three 22 and the gear four 36 to rotate, the gear three 22 drives the reciprocating screw one 21 to rotate, the gear four 36 drives the reciprocating screw two 35 to rotate, the reciprocating screw one 21 drives the moving plate one 24 to move, the moving plate one 24 moves the moving plate two 26 through the connecting plate 25, the moving plate one 24 and the moving plate two 26 drive the U-shaped mounting frame 27 and the pressing wheel 28 below to move, the pressing wheel 28 rolls on the circuit board 34 in the moving process, and the bending position of the circuit board 34 is changed in the rolling process, at the same time, the reciprocating screw two 35 rotates to drive the moving block 37 and the mounting frame 38 to move, the mounting frame 38 moves to drive the shaft one, the bevel gear one 310, the visual camera 39, the bevel gear two 313, the shaft two 312 and the gear two 314 to move, the gear two 314 is first engaged with the first segment of the multi-segment rack one 315 and rotates, the gear two 314 rotates through the shaft two 312, the bevel gear two 313 and the bevel gear one 310, the bevel gear one 310 drives the shaft one to rotate and drives the visual camera 39 to rotate, then the gear two 314 is engaged with the multi-segment rack two 316, so that the visual camera 39 returns to the original position, the visual camera 39 realizes back and forth swing detection, the swing detection can obtain the gap of the electronic component from multiple angles, and the pressing of the pressing wheel 28 on the circuit board 34 can expand the gap between the component and the circuit board 34, so as to accurately identify the false welding and virtual welding of the component, if the false welding or virtual welding component falls off during the bending of the circuit board 34, it will fall through the material leakage hole 33 and fall into the inside of the drawer 13 for collection, after the detection of the circuit board 34 is completed, the circuit board 34 is taken off, the circuit board 34 with problems and the circuit board 34 without problems are separated according to the visual data, and the circuit board 34 with problems is artificially re-welded according to the visual data.

[0047] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical scheme and the inventive concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. A visual inspection system for electronic computer circuit board soldering, comprising a mounting box (1), characterized in that, Also include: Rolling mechanism (2), the rolling mechanism (2) is connected with the installation box (1), is used for rolling detection piece to make it deformation, make the gap of welding place larger; Visual swing detection mechanism (3), the visual swing detection mechanism (3) is connected with the installation box (1), is located at the bottom of rolling mechanism (2), is used for multi-view to obtain the gap of deformed component and detection piece; Driving mechanism (4), the driving mechanism (4) is connected with the installation box (1), is used for driving visual swing detection mechanism (3) and rolling mechanism (2) to run; The rolling mechanism (2) includes reciprocating screw one (21) rotationally connected in the inner wall of box cover (15), gear three (22) is installed on the outer end of reciprocating screw one (21), reciprocating screw one (21) is externally threaded and is provided with moving plate one (24), two guide rods one (23) are provided in the inside of moving plate one (24), the guide rod one (23) is fixed in the inner wall of box cover (15), reciprocating screw one (21) and guide rod one (23) are externally provided with moving plate two (26), two connecting plates (25) are fixed between moving plate one (24) and moving plate two (26), the bottom of moving plate one (24) and moving plate two (26) is fixed with a plurality of U-shaped mounting brackets (27), the both sides of U-shaped mounting bracket (27) are rotationally connected with pressing wheel (28).

2. The visual inspection system for soldering of electronic computer circuit boards according to claim 1, wherein The installation box (1) includes counter (11), the top of counter (11) is provided with installation port, the inside of installation port is fixed with box body (14), the top of box body (14) is rotationally connected with box cover (15), the top of box cover (15) is installed with observation window (16), one side of counter (11) is installed with drawer (13), one side of counter (11) is installed with cabinet door (12).

3. The visual inspection system for soldering of electronic computer circuit boards according to claim 2, wherein The visual swing detection mechanism (3) includes a plurality of light frames (31) fixed in the bottom inner wall of box body (14), the number of light frames (31) is same as the number of U-shaped mounting bracket (27) and the position corresponds, a plurality of mounting columns (32) are provided in the inside of light frame (31), a plurality of circuit boards (34) are installed on the outside of mounting column (32), the electronic elements of circuit board (34) are towards down, the mounting column (32) is fixedly connected with the bottom inner wall of box body (14), a plurality of material leakage openings (33) are provided in the bottom of box body (14), the number of material leakage opening (33) is same as the number of light frame (31) and the light frame (31) is provided in the outside of material leakage opening (33).

4. The visual inspection system for soldering of electronic computer circuit boards according to claim 3, wherein The visual swing detection mechanism (3) comprises two visual cameras (39) sleeved in the material leakage opening (33), the bottom end of the visual cameras (39) is rotatably connected with a mounting frame (38) through a rotating shaft, the same end of the rotating shaft connected with the two visual cameras (39) in the material leakage opening (33) is fixedly connected with a bevel gear (310), the far sides of the two bevel gears (310) are engaged with a bevel gear (313), the inside of the bevel gear (313) is fixedly connected with a rotating shaft (312), the outside of the rotating shaft (312) is rotatably connected with a mounting plate (311), one side of the mounting plate (311) is rotatable with the mounting frame (38), the far ends of the two rotating shafts (312) are provided with a gear (314), the top of the gear (314) is engaged with a plurality of rack (315), the plurality of rack (315) is fixedly connected to the bottom of the box body (14), the bottom of the gear (314) is provided with a plurality of rack (316), the gear (314) is engaged with the plurality of rack (316) during movement, the plurality of rack (316) is fixedly connected with the plurality of rack (315) at the top, and the plurality of rack (315) and the plurality of rack (316) are staggered. The bottom of the mounting frame (38) is fixedly connected with a moving block (37) and two guide blocks (319), the inside of the moving block (37) is threadedly sleeved with a reciprocating screw (35), one end of the reciprocating screw (35) is provided with a gear (36), the reciprocating screw (35) is rotatably connected to the bottom outer wall of the box body (14), the inside of the guide block (319) is sleeved with a guide rod (318), the guide rod (318) is fixedly connected to the bottom outer wall of the box body (14), and the bottom of the box body (14) is provided with a gear opening (317).

5. The visual inspection system for soldering of electronic computer circuit boards according to claim 4, wherein The driving mechanism (4) comprises a motor (41) fixedly connected to the side wall of the box body (14), one end of the output shaft of the motor (41) is fixedly connected with a gear (42), one side of the gear (42) is engaged with the gear (36), and the other side of the gear (42) is engaged with the gear (22).

6. A visual inspection system for electronic computer circuit board soldering according to claim 5, wherein One side of the counter (11) is provided with a controller, and the controller is electrically connected with the motor (41), the light frame (31) and the visual camera (39).

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