CN-122016794-A - Circuit board detection device and method

Abstract

The invention discloses a circuit board detection device and method, wherein the device comprises a machine frame, a moving platform, a carrier platform, a detection system, a moving system and a control system, wherein the detection system is used for acquiring front circuit pictures, side circuit pictures and back circuit pictures of a circuit board, and the control system is used for receiving the front circuit pictures, the side circuit pictures and the back circuit pictures of the circuit board acquired by the detection system, sequentially splicing the front circuit pictures, the side circuit pictures and the back circuit pictures of the circuit board in the same plane to form circuit board picture information, comparing the circuit board picture information with set circuit board picture information, and judging whether the circuit board is qualified or not. The invention splices the pictures detected by the detection system, so that the circuit state at the junction of the front circuit and the side circuit and the circuit state at the junction of the side circuit and the back circuit can be detected, and the comprehensive inspection of the circuit board is realized.

Inventors

• ZHOU NANJIA
• Lu Lvxun
• LIU GUODONG

Assignees

• 芯体素(杭州)科技发展有限公司

Dates

Publication Date

20260512

Application Date

20241111

Claims (14)

1. 1. A circuit board detection device, comprising: A machine frame (1); The motion platform (2) is arranged on the machine frame (1); the carrier platform (3), the carrier platform (3) is arranged on the motion platform (2), and the carrier platform (3) is used for accommodating the circuit board; The detection system is used for acquiring a front circuit picture, a side circuit picture and a back circuit picture of the circuit board; the moving system (10), the moving system (10) is arranged on the machine frame (1), and the detecting system and/or the carrier platform (3) is arranged on the moving system (10) so that the detecting system and/or the carrier platform (3) can move under the driving of the moving system (10) to further detect the movement of the circuit board; The control system is used for receiving the front circuit picture, the side circuit picture and the back circuit picture of the circuit board, which are acquired by the detection system, and splicing the front circuit picture, the side circuit picture and the back circuit picture of the circuit board in sequence in the same plane to form circuit board picture information, and comparing the circuit board picture information with the set circuit board picture information to judge whether the circuit board is qualified or not.
2. 2. The circuit board inspection device according to claim 1, wherein the mobile system (10) comprises: A moving frame (101) provided on the moving platform (2); the Y-direction moving system (102) is arranged on the moving platform (2), and the carrier platform (3) is arranged on the Y-direction moving system (102) and moves along the Y direction under the drive of the Y-direction moving system (102); The X-direction moving system (103), the X-direction moving system (103) is arranged on the moving frame (101), and the X-direction moving system (103) is used for driving the detecting system to move along the X direction; The Z-direction moving system (104), the Z-direction moving system (104) is arranged on the X-direction moving system (103), the detection system is arranged on the Z-direction moving system (104), and the Z-direction moving system (104) is used for driving the detection system to move along the Z direction.
3. 3. The circuit board inspection device of claim 2, wherein the Z-direction movement system (104) comprises a first Z-direction movement assembly and a second Z-direction movement assembly that operate independently of each other; The detection system comprises a front circuit detection mechanism (4), a back circuit detection mechanism (5), a first diamond edge detection mechanism (6), a side edge detection mechanism (7) and a second diamond edge detection mechanism (8), wherein the front circuit detection mechanism (4) and the back circuit detection mechanism (5) are arranged on a first Z-direction moving assembly and can be independently adjusted, the first diamond edge detection mechanism (6), the side edge detection mechanism (7) and the second diamond edge detection mechanism (8) are arranged on a second Z-direction moving assembly and can be independently adjusted, the first diamond edge detection mechanism (6) and the second diamond edge detection mechanism (8) are respectively obliquely arranged, and the side edge detection mechanism (7) is arranged along the X direction.
4. 4. A circuit board detection device according to claim 3, wherein a light source (9) is further arranged on the second Z-direction moving assembly, and a light emitting surface of the light source (9) is used for collecting bright light to a side central axis position of the circuit board.
5. 5. The circuit board detection device according to claim 4, wherein the light source (9) is provided in an arc shape, and a light emitting surface of the light source (9) is provided on an arc inner wall surface of the light source (9); and/or the light sources (9) are provided with two, and the detection end of the first diamond edge detection mechanism (6), the detection end of the side edge detection mechanism (7) and the detection end of the second diamond edge detection mechanism (8) all pass through the space between the two light sources (9).
6. 6. Circuit board detection device according to any of claims 1-5, characterized in that a drive assembly (31) is arranged below the carrier platform (3), the drive assembly (31) being adapted to drive the carrier platform (3) in rotation for adjusting the placement position of the circuit board.
7. 7. The circuit board detection device according to claim 6, wherein the detection system is further configured to detect placement information of the circuit board on the carrier platform (3), and to feed back the placement information of the circuit board to the control system, and the control system calculates a deflection angle required for the circuit board based on the placement information of the circuit board and controls the carrier platform (3) to rotate.
8. 8. Circuit board detection device according to any of claims 1-5, characterized in that the carrier platform (3) is provided with suction holes, which are in communication with a suction assembly.
9. 9. A method for inspecting a circuit board, characterized in that the method is performed based on the circuit board inspection device according to any one of claims 1 to 8, the circuit board including a substrate, and a front side circuit, a side circuit, and a back side circuit provided on the substrate and connected therebetween, the method comprising the steps of: s1, placing a circuit board on a carrier platform; S2, controlling a moving system to drive a detection system and/or a carrier platform to move through a control system, so that the detection system reaches a designated position; S3, acquiring a front circuit picture, a side circuit picture and a back circuit picture of the circuit board through a detection system; S4, sequentially splicing the acquired front circuit picture, side circuit picture and back circuit picture of the circuit board in the same plane to form circuit board picture information; s5, comparing the circuit board picture information with the set circuit board picture information, and judging whether the circuit board is qualified or not.
10. 10. The method according to claim 9, wherein in step S3, a picture of a first edge or a first chamfer at the junction of the back circuit and the side circuit of the circuit board is obtained; In step S4, the obtained front circuit picture, first edge or first chamfer picture, side circuit picture, first edge or first chamfer, and back circuit picture of the circuit board are spliced in the same plane to form circuit board picture information.
11. 11. The method according to claim 9, wherein in step S3, the front side circuit picture, the side circuit picture, and the back side circuit picture of the circuit board are obtained by the inspection system, by shooting, or by sampling with a multi-angle mirror.
12. 12. The method for inspecting a circuit board according to claim 9, wherein in step S4, the acquired front circuit picture, side circuit picture, and back circuit picture of the circuit board are sequentially spliced in the same plane, comprising the steps of: Rotating the acquired front circuit picture of the circuit board by 180 degrees, and splicing the back circuit picture, the side circuit picture and the front circuit picture of the circuit board in the same plane in sequence according to the X direction; Or, the acquired back circuit picture of the circuit board is rotated 180 degrees, and the front circuit picture, the side circuit picture and the back circuit picture of the circuit board are spliced in the same plane in sequence according to the X direction.
13. 13. The method according to claim 9, wherein in step S1, after the circuit board is placed on the carrier platform, a deflection angle of the circuit board is calculated by an edge finding method or a Mark positioning method, and an angle deviation correction is performed on the circuit board based on the deflection angle.
14. 14. The method according to any one of claims 9 to 13, wherein in step S5, comparing the circuit board picture information with the set circuit board picture information to determine whether the circuit board is acceptable, includes: dividing edge lines of the circuit board to confirm silver line boundaries; According to the silver lines on the boundary segmentation image, performing width measurement on the silver lines, and detecting holes and/or foreign matters; and after the detection is finished, judging whether the circuit board is qualified or not based on the set width requirement information and/or the hole requirement information.

Description

Circuit board detection device and method Technical Field The invention relates to the technical field of circuit board detection, in particular to a circuit board detection device and method. Background This section provides merely background information related to the present disclosure and does not necessarily constitute prior art. The whole surface of the side section line is plated with a titanium layer, and then the line is etched by laser. The process has the problems of material waste, high maintenance cost, complex process, low yield, environment pollution caused by waste water generated by electroplating, waste material generated by etching and the like. In order to improve the problem of circuit manufacture at the present stage and improve the competitiveness, the applicant develops a side circuit printing scheme, a 3D printing mode is used, circuit boards are manufactured on the front side and the back side of a glass substrate in a direct writing printing mode, a metal circuit layer is manufactured on the side of the glass substrate, and the circuit boards on the front side and the back side are connected through the metal circuit at the side position. The cost of the substrate of the side circuit is relatively high, and a device for detecting the side circuit is not used in actual printing, so that products are often directly solidified, and if NG products (unqualified products) exist, loss can be caused. Disclosure of Invention Therefore, the technical problem to be solved by the invention is to overcome the defect that the side circuit cannot be detected by the existing detection device, so as to provide a circuit board detection device and a circuit board detection method. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: A circuit board inspection device, comprising: A machine frame; The motion platform is arranged on the machine frame; The carrier platform is arranged on the motion platform and is used for accommodating the circuit board; The detection system is used for acquiring a front circuit picture, a side circuit picture and a back circuit picture of the circuit board; the detection system and/or the carrier platform are/is arranged on the moving system, so that the detection system and/or the carrier platform can move under the drive of the moving system, and then the circuit board is subjected to movement detection; The control system is used for receiving the front circuit picture, the side circuit picture and the back circuit picture of the circuit board, which are acquired by the detection system, and splicing the front circuit picture, the side circuit picture and the back circuit picture of the circuit board in sequence in the same plane to form circuit board picture information, and comparing the circuit board picture information with the set circuit board picture information to judge whether the circuit board is qualified or not. Further optimizing technical scheme, the mobile system includes: the movable frame is arranged on the motion platform; The carrier platform is arranged on the Y-direction moving system and driven by the Y-direction moving system to move along the Y direction; The X-direction moving system is arranged on the moving frame and is used for driving the detecting system to move along the X direction; The Z-direction moving system is arranged on the X-direction moving system, the detection system is arranged on the Z-direction moving system, and the Z-direction moving system is used for driving the detection system to move along the Z direction. According to the technical scheme, the Z-direction moving system comprises a first Z-direction moving assembly and a second Z-direction moving assembly which are operated relatively and independently; The detection system comprises a front circuit detection mechanism, a back circuit detection mechanism, a first diamond edge detection mechanism, a side edge detection mechanism and a second diamond edge detection mechanism, wherein the front circuit detection mechanism and the back circuit detection mechanism are arranged on a first Z-direction moving assembly and can be independently adjusted, the first diamond edge detection mechanism, the side edge detection mechanism and the second diamond edge detection mechanism are arranged on a second Z-direction moving assembly and can be independently adjusted, the first diamond edge detection mechanism and the second diamond edge detection mechanism are respectively and obliquely arranged, and the side edge detection mechanism is arranged along the X direction. Further optimizing technical scheme, still be provided with the light source on the second Z removes the subassembly, the light emitting area of light source is used for gathering the side axis position of circuit board with the light. Further optimizing the technical scheme, the light source is arranged in an arc shape, and the light emitting surface of the light