Optical device for detecting PCB

Abstract

The utility model belongs to the field of PCB (Printed Circuit Board) detection, particularly relates to an optical device for detecting a PCB, and provides the following scheme aiming at the problems that the detection can be completed only by working personnel through different devices and the PCB is easy to deviate in the moving process in the prior art. The top of the detection base is fixedly provided with a main console, the top of the detection base is slidably provided with a conveying plate, the top of the detection base is provided with a sliding groove, the inner side of the sliding groove is rotatably provided with a conveying ball screw, and the top of the detection base is fixedly provided with a detection bin. And a detection groove is formed in the detection bin, a fixed column is fixedly installed on the inner wall of one side of the detection groove, and a limiting ratchet wheel is slidably arranged on the fixed column in a sleeving mode. According to the utility model, different detection lenses can be switched in different detection links, and the PCB can be limited.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board detection, in particular to an optical device for detecting PCB. Background Art

[0002] Printed circuit board, also known as printed circuit board, also known as PCB board, is the provider of electrical connections for electronic components;

[0003] During PCB production, after printing, they must be inspected to ensure that the surface of the circuit board is free of defects. However, when inspecting PCBs, multiple different inspection lenses must be used simultaneously. Existing devices mostly use a single lens, and sometimes workers need to use different devices to complete the inspection. In addition, when inspecting PCBs, existing devices often require a movable plate to move the PCB to be directly under the inspection lens. However, the PCB is prone to deviation during the movement. Utility Model Content

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An optical device for detecting PCBs, comprising a detection base, a main console fixedly mounted on the top of the detection base, a conveying plate slidably mounted on the top of the detection base, a sliding groove provided on the top of the detection base, a conveying ball screw rotatably mounted on the inner side of the sliding groove; a conveying slider slidably mounted on the inner side of the sliding groove, the conveying slider threadedly sleeved on the conveying ball screw, and the top of the conveying slider is connected to the conveying plate; a detection chamber fixedly mounted on the top of the detection base, a detection groove provided inside the detection chamber, a fixing column fixedly mounted on the inner wall of one side of the detection groove, and a limiting ratchet slidably sleeved on the fixing column.

[0006] Specifically, a motor slot is opened inside the detection base, a conveying servo motor is fixedly installed on the inner wall of one side of the motor slot, the output shaft of the conveying servo motor is connected to the conveying ball screw, and multiple limit bases are fixedly installed on the top of the conveying plate, and a U-shaped metal block is fixedly installed on the top of each of the multiple limit bases.

[0007] Specifically, a flip shaft is fixedly installed on the inner side of each U-shaped metal block, a driven metal block is rotatably sleeved on each of the flip shafts, a driven gear is fixedly sleeved on each of the flip shafts, one side of each of the driven gears is rotatably installed on the inner side of the corresponding U-shaped metal block, a driving gear is rotatably installed on the inner side of each of the U-shaped metal blocks, a accommodating chamber is opened inside each of the U-shaped metal blocks, and a limit servo motor is fixedly installed on the inner wall of one side of each of the accommodating chambers, and the output shafts of the limit servo motors are respectively connected to the corresponding driving gears, so that the limit servo motors drive the corresponding driving gears to rotate.

[0008] Specifically, a driven base is fixedly installed on one side of the multiple driven metal blocks, a connecting shaft is fixedly installed on the inner side of the multiple driven bases, a crank is rotatably sleeved on the multiple connecting shafts, an auxiliary shaft is rotatably installed on one end of the multiple cranks, a rotating groove is opened on the top of the multiple limit bases, a limiting shaft is fixedly installed on the inner side of the multiple rotating grooves, an auxiliary metal block is rotatably sleeved on the multiple limit shafts, an auxiliary groove is opened on one side of the multiple auxiliary metal blocks, and one end of the multiple auxiliary shafts is respectively fixedly installed on the inner wall of one side of the corresponding auxiliary groove.

[0009] Specifically, a limiting rod is fixedly installed on one side of each of the auxiliary metal blocks, and a rubber head is fixedly installed on one end of each of the limiting rods, so as to facilitate limiting the PCB circuit board.

[0010] Specifically, a reset spring is fixedly installed on the top of the limiting ratchet, and the other end of the reset spring is connected to the top inner wall of the detection groove. A rotating sleeve on the fixed column is provided with a rotating ratchet, and a linkage gear is provided on the outer fixed sleeve of the rotating ratchet. A bracket is fixedly installed on the bottom of the rotating ratchet to facilitate the rotation of the rotating ratchet to drive the bracket to rotate.

[0011] Specifically, a transmission housing is fixedly installed on the inner wall of one side of the detection groove, a transmission gear is rotatably installed on the bottom of the transmission housing, one side of the transmission gear is engaged with one side of the linkage gear, a transmission servo motor is fixedly installed on the inner side of the transmission housing, and the output shaft of the transmission servo motor is connected to the transmission gear, and a plurality of lens bases are fixedly installed on the bottom of the bracket, and detection lenses are snap-fitted onto the inner sides of the plurality of lens bases.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The optical device for detecting PCBs of the present invention can switch different detection lenses at different detection stages through a set mechanism, eliminating the need for workers to use multiple machines for detection, thereby greatly improving work efficiency.

[0014] (2) The optical device for detecting PCBs of the present invention can limit the PCB circuit board through a set mechanism to prevent it from being limited during movement, thereby affecting the accuracy of the final detection structure, thereby increasing the accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an optical device for detecting PCBs proposed by the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the three-dimensional structure of an optical device for detecting PCBs proposed in the present invention;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of an optical device for detecting PCBs proposed by the present invention;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of a detection mechanism of an optical device for detecting PCBs proposed in the present invention;

[0019] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a lens mechanism of an optical device for detecting PCBs.

[0020] In the figure: 1. Detection base; 2. Main console; 3. Detection chamber; 4. Conveyor plate; 5. Conveying ball screw; 6. Conveying slider; 7. Conveying servo motor; 8. Limit base; 9. U-shaped metal block; 10. Limit servo motor; 11. Driving gear; 12. Flip shaft; 13. Driven gear; 14. Driven metal block; 15. Driven base; 16. Crank; 17. Connecting shaft; 18. Auxiliary shaft; 19. Auxiliary metal block; 20. Limit shaft; 21. Limit rod; 22. Rubber head; 23. Fixed column; 24. Limit ratchet; 25. Reset spring; 26. Rotating ratchet; 27. Linkage gear; 28. Transmission gear; 29. ​​Transmission servo motor; 30. Transmission housing; 31. Bracket; 32. Lens base; 33. Detection lens. DETAILED DESCRIPTION

[0021] Reference Figure 1-5An optical device for detecting PCBs includes a detection base 1, a main console 2 is fixedly installed on the top of the detection base 1, a conveying plate 4 is slidably installed on the top of the detection base 1, a sliding groove is opened on the top of the detection base 1, and a conveying ball screw 5 is rotatably installed on the inner side of the sliding groove; a conveying slider 6 is slidably installed on the inner side of the sliding groove, and the conveying slider 6 is threadedly sleeved on the conveying ball screw 5, and the top of the conveying slider 6 is connected to the conveying plate 4; a detection chamber 3 is fixedly installed on the top of the detection base 1, and a detection groove is opened inside the detection chamber 3, a fixed column 23 is fixedly installed on the inner wall of one side of the detection groove, and a limiting ratchet 24 is slidably sleeved on the fixed column 23.

[0022] In this embodiment, a motor slot is opened inside the detection base 1, and a conveying servo motor 7 is fixedly installed on the inner wall of one side of the motor slot. The output shaft of the conveying servo motor 7 is connected to the conveying ball screw 5. A plurality of limit bases 8 are fixedly installed on the top of the conveying plate 4, and a U-shaped metal block 9 is fixedly installed on the top of each of the plurality of limit bases 8.

[0023] In this embodiment, a flip shaft 12 is fixedly installed on the inner side of each of the U-shaped metal blocks 9, a driven metal block 14 is rotatably sleeved on each of the flip shafts 12, a driven gear 13 is fixedly sleeved on each of the flip shafts 12, one side of each of the driven gears 13 is rotatably installed on the inner side of the corresponding U-shaped metal block 9, a driving gear 11 is rotatably installed on the inner side of each of the U-shaped metal blocks 9, a accommodating chamber is opened inside each of the U-shaped metal blocks 9, and a limit servo motor 10 is fixedly installed on the inner wall of one side of each of the accommodating chambers, and the output shafts of the limit servo motors 10 are respectively connected to the corresponding driving gears 11, so that the limit servo motors 10 can drive the corresponding driving gears 11 to rotate.

[0024] In this embodiment, a driven base 15 is fixedly installed on one side of multiple driven metal blocks 14, a connecting shaft 17 is fixedly installed on the inner side of multiple driven bases 15, a crank 16 is rotatably sleeved on multiple connecting shafts 17, an auxiliary shaft 18 is rotatably installed on one end of multiple cranks 16, a rotating groove is opened on the top of multiple limit bases 8, a limiting shaft 20 is fixedly installed on the inner side of multiple rotating grooves, an auxiliary metal block 19 is rotatably sleeved on multiple limit shafts 20, an auxiliary groove is opened on one side of multiple auxiliary metal blocks 19, and one end of multiple auxiliary shafts 18 is respectively fixedly installed on one side inner wall of the corresponding auxiliary groove.

[0025] In this embodiment, a limiting rod 21 is fixedly mounted on one side of each of the auxiliary metal blocks 19 , and a rubber head 22 is fixedly mounted on one end of each of the limiting rods 21 , so as to facilitate limiting the PCB circuit board.

[0026] In this embodiment, a reset spring 25 is fixedly installed on the top of the limiting ratchet 24, and the other end of the reset spring 25 is connected to the top inner wall of the detection groove. A rotating sleeve is provided on the fixed column 23, and a linkage gear 27 is provided on the outer fixed sleeve of the rotating ratchet 26. A bracket 31 is fixedly installed on the bottom of the rotating ratchet 26 to facilitate the rotation of the rotating ratchet 26 to drive the bracket 31 to rotate.

[0027] In this embodiment, a transmission housing 30 is fixedly installed on the inner wall of one side of the detection groove, and a transmission gear 28 is rotatably installed on the bottom of the transmission housing 30. One side of the transmission gear 28 is engaged with one side of the linkage gear 27. A transmission servo motor 29 is fixedly installed on the inner side of the transmission housing 30, and the output shaft of the transmission servo motor 29 is connected to the transmission gear 28. A plurality of lens bases 32 are fixedly installed on the bottom of the bracket 31, and a detection lens 33 is snap-fitted onto the inner side of each of the plurality of lens bases 32.

[0028] Working principle: After the PCB circuit board is printed, it is inspected. After the staff places the PCB circuit board in the limit area on the conveying plate 4, multiple limit servo motors 10 are started through the main console 2. The multiple limit servo motors 10 are started to drive the corresponding driving gears 11 to rotate. The rotation of the multiple driving gears 11 drives the corresponding driven gears 13 to rotate. The rotation of the multiple driven gears 13 drives the corresponding flip shafts 12 to rotate. The rotation of the multiple flip shafts 12 drives the corresponding driven metal blocks 14 to tilt. The tilting of the multiple driven metal blocks 14 drives the corresponding driven bases 15 to displace. The displacement of the multiple driven bases 15 squeezes the corresponding cranks 16. The multiple cranks 16 are squeezed and drive the corresponding auxiliary metal blocks 19 to displace. However, since the multiple auxiliary metal blocks 19 are rotatably installed on the corresponding limit bases 8, the multiple auxiliary metal blocks 19 flip. The flipping of the multiple auxiliary metal blocks 19 drives one end of the corresponding limit rod 21 to tilt. The tilting of one end of the multiple limit rods 21 drives the corresponding rubber head 22 to move down and contact the PCB circuit board to limit it. Then the conveying servo motor 7 is started to drive the conveying ball screw 5 rotates, the conveying ball screw 5 rotates to drive the conveying slider 6 to move, the conveying slider 6 moves to drive the PCB circuit board to the detection chamber 3, and then the detection lens 33 detects it, and the detection data is transmitted to the display screen of the main console 2 for the staff to view and analyze. When it is necessary to switch the detection lens 33 to collect data, the staff starts the transmission servo motor 29 through the main console 2, and the transmission servo motor 29 starts to drive the transmission gear 28 to rotate, and the transmission gear 28 rotates to drive the linkage gear 27 to rotate, and the linkage gear 27 rotates to drive the rotation ratchet The wheel 26 rotates. When the rotating ratchet 26 rotates, the tooth grooves on it are adapted to the tooth grooves of the limiting ratchet 24. Therefore, when the rotating ratchet 26 rotates clockwise, the limiting ratchet 24 is squeezed to move upward. When the rotation is completed, the limiting ratchet 24 is reset by the rebound force of the reset spring 25, limiting the rotating ratchet 26. The rotation of the rotating ratchet 26 drives the bracket 31 to rotate. The rotation of the bracket 31 drives the multiple lens bases 32 to move. The movement of the multiple lens bases 32 drives the corresponding detection lenses 33 to move to the specified position to detect the PCB circuit board.

[0029] The technical progress achieved by the present invention over the prior art is that different detection lenses 33 can be switched at different detection links through the provided mechanism, and the staff no longer needs to use multiple machines for detection, which greatly improves work efficiency. In addition, the provided mechanism can be used to limit the PCB circuit board to prevent it from being limited during movement, thereby preventing the accuracy of the final detection structure from being affected, thereby increasing the accuracy of the device.

Claims

1. An optical device for detecting PCB, characterized in that: include: A detection base (1), wherein a main console (2) is fixedly mounted on the top of the detection base (1), a conveying plate (4) is slidably mounted on the top of the detection base (1), a sliding groove is provided on the top of the detection base (1), and a conveying ball screw (5) is rotatably mounted inside the sliding groove; A conveying slider (6) is slidably mounted on the inner side of the sliding groove, the conveying slider (6) is threadedly sleeved on the conveying ball screw (5), and the top of the conveying slider (6) is connected to the conveying plate (4); A detection chamber (3) is fixedly mounted on the top of the detection base (1), a detection slot is provided inside the detection chamber (3), a fixed column (23) is fixedly mounted on an inner wall of one side of the detection slot, and a limiting ratchet (24) is slidably sleeved on the fixed column (23).

2. The optical device for detecting PCB according to claim 1, characterized in that: A motor slot is provided inside the detection base (1), a conveying servo motor (7) is fixedly mounted on an inner wall of one side of the motor slot, an output shaft of the conveying servo motor (7) is connected to a conveying ball screw (5), a plurality of position limiting bases (8) are fixedly mounted on the top of the conveying plate (4), and a U-shaped metal block (9) is fixedly mounted on the top of each of the plurality of position limiting bases (8).

3. The optical device for detecting PCB according to claim 2, characterized in that: A turning shaft (12) is fixedly installed on the inner side of each of the U-shaped metal blocks (9), a driven metal block (14) is rotatably sleeved on each of the turning shafts (12), a driven gear (13) is fixedly sleeved on each of the turning shafts (12), one side of each of the driven gears (13) is rotatably installed on the inner side of the corresponding U-shaped metal block (9), a driving gear (11) is rotatably installed on the inner side of each of the U-shaped metal blocks (9), a receiving chamber is opened inside each of the U-shaped metal blocks (9), a limit servo motor (10) is fixedly installed on the inner wall of one side of each of the plurality of receiving chambers, and the output shafts of the plurality of limit servo motors (10) are respectively connected to the corresponding driving gear (11).

4. The optical device for detecting PCB according to claim 3, characterized in that: A driven base (15) is fixedly installed on one side of the plurality of driven metal blocks (14), a connecting shaft (17) is fixedly installed on the inner side of the plurality of driven bases (15), a crank (16) is rotatably sleeved on the plurality of connecting shafts (17), an auxiliary shaft (18) is rotatably installed through one end of the plurality of cranks (16), a rotating groove is opened on the top of the plurality of limit bases (8), a limiting shaft (20) is fixedly installed on the inner side of the plurality of rotating grooves, an auxiliary metal block (19) is rotatably sleeved on the plurality of limit shafts (20), an auxiliary groove is opened on one side of the plurality of auxiliary metal blocks (19), and one end of the plurality of auxiliary shafts (18) is respectively fixedly installed on one side inner wall of the corresponding auxiliary groove.

5. The optical device for detecting PCB according to claim 4, characterized in that: A limiting rod (21) is fixedly mounted on one side of the plurality of auxiliary metal blocks (19), and a rubber head (22) is fixedly mounted on one end of the plurality of limiting rods (21).

6. The optical device for detecting PCB according to claim 1, characterized in that: A reset spring (25) is fixedly installed on the top of the limit ratchet (24), and the other end of the reset spring (25) is connected to the top inner wall of the detection groove. A rotating ratchet (26) is rotatably sleeved on the fixed column (23), and a linkage gear (27) is fixedly sleeved on the outer side of the rotating ratchet (26). A bracket (31) is fixedly installed on the bottom of the rotating ratchet (26).

7. The optical device for detecting PCB according to claim 6, characterized in that: A transmission housing (30) is fixedly mounted on an inner wall of one side of the detection groove, a transmission gear (28) is rotatably mounted on the bottom of the transmission housing (30), one side of the transmission gear (28) is meshed with one side of a linkage gear (27), a transmission servo motor (29) is fixedly mounted on the inner side of the transmission housing (30), an output shaft of the transmission servo motor (29) is connected to the transmission gear (28), a plurality of lens bases (32) are fixedly mounted on the bottom of the bracket (31), and a detection lens (33) is snap-fitted to the inner side of each of the plurality of lens bases (32).

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