PCB photographing machine

Abstract

The utility model discloses a PCB (Printed Circuit Board) photographing machine which comprises a rack, a plane moving device, a lifting device, a reflecting plate, a camera, a light source group, a PCB supporting module group and a controller, the PCB supporting module group can support square, circular and special-shaped PCBs; the light source angle of the light source group can be adjusted in four directions; the light-emitting plate can improve the utilization rate of light. The LED light-emitting module has the advantages that light rays can be reflected back to the PCBs through the reflecting plates, light source lines are emitted from multiple angles, the irradiation angle of the LED light-emitting module can be adjusted according to the PCBs of different sizes, and square, round and special-shaped PCBs can be conveniently supported.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board photography. Background Art

[0002] After the PCB circuit board is produced, it needs to be tested, and manual testing is relatively slow.

[0003] Some companies use PCB cameras to automatically collect pictures and analyze them to draw conclusions. However, there are still the following problems that need to be solved:

[0004] 1. The light source is difficult to adjust;

[0005] 2. The light intensity of the same power is not enough, and the light distribution is not uniform enough;

[0006] 3. PCBs come in different shapes. Therefore, when you encounter a round PCB board, or a special-shaped PCB board with both curved edges and straight edges, it is not easy to fix the PCB board, which reduces work efficiency. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a PCB camera that can reflect light back onto the PCB through a reflector and emit light lines at multiple angles. The LED light-emitting module can adjust the irradiation angle according to PCB boards of different sizes and can conveniently support square, round and special-shaped PCB boards.

[0008] The technical solution adopted by the utility model is:

[0009] PCB camera, comprising:

[0010] frame;

[0011] A plane moving device is fixed on the frame and is provided with a moving bed which can move laterally and / or longitudinally, and the upper surface of the moving bed is a plane;

[0012] A lifting device is fixed on the frame and is provided with a lifting end that can be vertically extended and retracted;

[0013] The connecting frame is provided with an upper end and a lower end, the upper end is fixed to the lifting end provided by the lifting device, the lower end is close to the moving bed and is provided above the moving bed, and a light-permeable space is provided between the upper end and the lower end;

[0014] The reflector is fixed on the upper end of the connecting frame, the lower surface of which is a reflective surface, and a light-transmitting hole is provided in the middle, and the light-transmitting hole is connected with the moving bed through the light-transmitting space;

[0015] The camera is fixed to the connecting frame, is arranged on the upper surface of the reflective plate, and faces the upper surface of the movable bed through the light transmission hole;

[0016] The light source group has four adjustable angle light source modules arranged in an array on the circumferential edge of the lower end of the connecting frame, and the light emitted by the LED light-emitting module provided in each light source module irradiates the upper surface of the movable bed;

[0017] A PCB board support module group includes a first support module and a second support module. The first support module is square, and the second support module includes a base and a limit plate arranged at the upper end of the base. The outer wall of the limit plate cooperates with the upper end surface of the base to form four steps. The outer wall position of the limit plate corresponding to at least one of the four steps is a flat surface. The outer wall position of the limit plate corresponding to at least one of the four steps is an arc-shaped surface.

[0018] The controller is electrically connected to the plane moving device, the lifting device, the light source group and the camera.

[0019] The base is fixedly connected with the limiting plate by bolts. The base is square. The limiting plate is provided with four outer side walls, three of which are arc-shaped surfaces and one is a flat surface.

[0020] Each angle-adjustable light source module comprises an LED light-emitting module and an angle adjustment mechanism. One end of the angle adjustment mechanism is relatively fixed to the connecting frame, and the LED light-emitting module is relatively fixed to the angle adjustment mechanism.

[0021] If the PCB board is round, the steps at the curved surface of the two second support modules can be directly used to support the PCB board. If the PCB board is square, the steps at the flat surface of the two second support modules can be used to support the PCB board. If one end of the PCB board is square and the other end is round, two second support modules can be used, one of which uses the steps corresponding to the flat surface to support the PCB board, and the other second support module uses the steps corresponding to the curved surface to support the PCB board. If the area of ​​the PCB board is relatively large, there will be bending in the middle. At this time, the first support module is placed at the lower end of the middle position of the PCB board to prevent / reduce deformation.

[0022] After placing the PCB board on the PCB board support module group, the controller takes pictures through the camera. The controller can drive the plane moving device to adjust the relative position of the PCB board and the camera plane. Secondly, the controller can drive the lifting device to adjust the distance between the camera and the PCB board.

[0023] The lower end surface of the reflector can reflect the light emitted by the LED light-emitting module back to the PCB board, and the irradiation angle of the LED light-emitting module can be adjusted by adjusting the angle adjustment mechanism.

[0024] The PCB board support module group is an insulating PCB board support module group, which is mainly used to prevent the PCB board from contacting the conductive moving bed.

[0025] The beneficial effects of the utility model are: light can be reflected back to the PCB board through the reflector, light source lines can be emitted at multiple angles, the LED light-emitting module can adjust the irradiation angle according to PCB boards of different sizes, and square, round and special-shaped PCB boards can be conveniently supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a side view schematic diagram of the first visual of this product;

[0027] Figure 2 This is a schematic diagram of the product from above;

[0028] Figure 3 It is a side view schematic diagram of the second vision of this product;

[0029] Figure 4 This is the right side schematic diagram of this product;

[0030] Figure 5 This is the main schematic diagram of this product;

[0031] Figure 6 This is the left side schematic diagram of this product;

[0032] Figure 7 This is a schematic diagram of the rear view of this product;

[0033] Figure 8 This is the principle diagram of the PCB board support module group of this product;

[0034] Fig. 9 This is a schematic diagram of the principle that two PCB board support modules in this product jointly support a circular PCB board. DETAILED DESCRIPTION

[0035] like Figures 1 to 9 As shown, the utility model PCB camera comprises:

[0036] Rack 1;

[0037] The plane moving device 2 is fixed on the frame 1 and is provided with a moving bed 21 which can move horizontally and / or vertically, and the upper surface of the moving bed 21 is a plane;

[0038] A lifting device 3 is fixed on the frame 1 and is provided with a vertically retractable lifting end;

[0039] The connecting frame 4 has an upper end and a lower end, the upper end is fixed to the lifting end of the lifting device 3, and the lower end is close to the moving bed 21 and is arranged above the moving bed 21, and a light-permeable space is formed between the upper end and the lower end;

[0040] The reflector 5 is fixed to the upper end of the connecting frame 4, the lower surface of which is a reflective surface, and a light-transmitting hole is provided in the middle, and the light-transmitting hole is connected to the moving bed 21 through the light-transmitting space;

[0041] The camera 6 is fixed to the connecting frame 4, is disposed on the upper surface of the reflector 5, and faces the upper surface of the moving bed 21 through the light-transmitting hole;

[0042] The light source group 7 has four adjustable angle light source modules arranged in an array on the circumferential edge of the lower end of the connecting frame 4. The light emitted by the LED light emitting module 71 provided in each light source module irradiates the upper surface of the movable bed 21.

[0043] The PCB board support module group 8 includes a first support module and a second support module. The first support module is square, and the second support module includes a base 81 and a limit plate 82 arranged at the upper end of the base 81. The outer wall of the limit plate 82 cooperates with the upper end surface of the base 81 to form four steps. The outer wall position of the limit plate 82 corresponding to at least one of the four steps is a flat surface. The outer wall position of the limit plate 82 corresponding to at least one of the four steps is an arc-shaped surface.

[0044] The controller is electrically connected to the planar moving device 2 , the lifting device 3 , the light source group 7 and the camera 6 .

[0045] The base 81 and the limiting plate 82 are fixedly connected by bolts. The base 81 is square, and the limiting plate 82 is provided with four outer side walls, three of which are arc-shaped surfaces and one is a flat surface.

[0046] Each angle-adjustable light source module includes an LED light-emitting module 71 and an angle adjustment mechanism 72 . One end of the angle adjustment mechanism 72 is relatively fixed to the connecting frame 4 , and the LED light-emitting module 71 and the angle adjustment mechanism 72 are relatively fixed.

[0047] If the PCB board is round, the steps at the curved surface position of the two second support modules can be directly used to support the PCB board. If the PCB board is square, the steps at the flat surface position of the two second support modules can be used to support the PCB board. If one end of the PCB board is square and the other end is round, two second support modules can be used, one of the second support modules uses the steps corresponding to the flat surface to support the PCB board, and the other second support module uses the steps corresponding to the curved surface to support the PCB board. If the area of ​​the PCB board is relatively large, bending will occur in the middle. At this time, the first support module is placed at the lower end of the middle position of the PCB board to prevent / reduce deformation. Both the first support module and the second support module can be placed at any position of the movable bed.

[0048] After placing the PCB board on the PCB board support module group, the controller takes pictures through the camera. The controller can drive the plane moving device to adjust the relative position of the PCB board and the camera plane. Secondly, the controller can drive the lifting device to adjust the distance between the camera and the PCB board.

[0049] The lower end surface of the reflector can reflect the light emitted by the LED light-emitting module back to the PCB board, and the irradiation angle of the LED light-emitting module can be adjusted by adjusting the angle adjustment mechanism.

[0050] The beneficial effects of the utility model are: light can be reflected back to the PCB board through the reflector, light source lines can be emitted at multiple angles, the LED light-emitting module can adjust the irradiation angle according to PCB boards of different sizes, and square, round and special-shaped PCB boards can be conveniently supported.

Claims

1. PCB camera, characterized by include: Rack (1); A plane moving device (2) is fixed on the frame (1) and is provided with a moving bed (21) that can move horizontally and / or vertically, and the upper surface of the moving bed (21) is a plane; A lifting device (3) is fixed on the frame (1) and is provided with a lifting end that can be vertically extended and retracted; The connecting frame (4) is provided with an upper end and a lower end, the upper end is fixed to the lifting end provided by the lifting device (3), the lower end is close to the moving bed (21) and is provided above the moving bed (21), and a light-permeable space is formed between the upper end and the lower end; A reflector (5) is fixed to the upper end of the connecting frame (4), the lower surface of which is a reflective surface, and a light-transmitting hole is provided in the middle, and the light-transmitting hole is connected to the moving bed (21) through the light-transmitting space; The camera (6) is fixed to the connecting frame (4), is disposed on the upper surface of the reflective plate (5), and faces the upper surface of the movable bed (21) through the light-transmitting hole; A light source group (7) having four light source modules with adjustable angles arranged in an array on the circumferential edge of the lower end of the connecting frame (4), wherein the light emitted by the LED light-emitting module (71) provided in each light source module irradiates the upper surface of the movable bed (21); A PCB board support module group (8) comprises a first support module and a second support module, the first support module is square, the second support module comprises a base (81) and a limit plate (82) arranged at the upper end of the base (81), the outer wall of the limit plate (82) cooperates with the upper end surface of the base (81) to form four steps, the outer wall position of the limit plate (82) corresponding to at least one of the four steps is a straight surface, and the outer wall position of the limit plate (82) corresponding to at least one of the four steps is an arc-shaped curved surface; The controller is electrically connected to the planar moving device (2), the lifting device (3), the light source group (7) and the camera (6).

2. The PCB camera according to claim 1, characterized in that: The base (81) and the limiting plate (82) are fixedly connected by bolts. The base (81) is square, and the limiting plate (82) is provided with four outer side walls, three of which are arc-shaped surfaces and one is a flat surface.

3. The PCB camera according to claim 1, characterized in that: Each angle-adjustable light source module comprises an LED light-emitting module (71) and an angle adjustment mechanism (72); one end of the angle adjustment mechanism (72) is relatively fixed to the connecting frame (4); and the LED light-emitting module (71) and the angle adjustment mechanism (72) are relatively fixed.

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