A multi-face pin and line sweep AOI detection structure
By adopting a bracket combined with a U-axis and V-axis rotating bracket and a coaxial light source in the AOI inspection equipment, the problems of bulky equipment and high cost in PIN pin inspection equipment when high precision requirements are required are solved, and efficient and low-cost multi-faceted PIN pin inspection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUAHAN LASER TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-09
AI Technical Summary
Existing PIN pin AOI inspection equipment requires multiple vision modules when high precision is required, resulting in bulky equipment, high cost, low efficiency of rotating fixtures, and poor versatility.
The system employs a pin detection component and a line scan detection component mounted on a bracket, combined with a U-axis and V-axis rotating bracket and a coaxial light source. It achieves high-precision detection of multi-faceted pins through a 3-axis linear module, eliminating the need for some vision modules and drive structures.
It achieves high-precision PIN detection, reduces equipment load weight and size, lowers costs, simplifies control, and improves detection efficiency.
Smart Images
Figure CN224341463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of AOI inspection equipment technology, and in particular to an AOI inspection structure with multi-faceted PIN pins and line scan. Background Technology
[0002] Pins, as the connection medium between two active devices, are widely used in the field of electronic equipment manufacturing, especially in circuit boards, for transmitting data or power. During the manufacturing process of circuit boards or other electronic components, deviations due to manufacturing processes are unavoidable. Therefore, after the pins are manufactured, they need to undergo position detection, alignment detection, and measurement for subsequent correction and defective product screening.
[0003] Existing PIN pin AOI inspection structures or equipment primarily utilize vision modules to perform the aforementioned inspections. Since the positions and orientations of PIN pins on circuit boards or electronic devices vary, and there are multiple PIN pins, a single vision module can be used to inspect PIN pins in multiple orientations and to detect the overall PIN pin positions of the circuit board when high precision is not required. However, when higher precision is required, a vision module is needed for each orientation (front, back, left, right) to perform inspection. These vision modules use corresponding coaxial light sources (front, back, left, right) to achieve better inspection results. However, using too many vision modules leads to an overly bulky and costly overall system. Some inspection equipment uses rotating moving fixtures to inspect circuit boards or electronic devices, which reduces the overall number of vision modules. However, each circuit board or electronic device to be inspected requires a corresponding fixture, which also needs a corresponding motion mechanism and power source. Compared to traditional assembly line methods, this is less efficient, and the fixtures also lack versatility and adaptability.
[0004] Therefore, there is an urgent need for an AOI detection structure with multi-faceted PIN pins and line scanning that can solve one or more of the above problems. Utility Model Content
[0005] To address one or more problems existing in the prior art, this utility model provides an AOI detection structure with multi-faceted PIN pins and a line scan. The technical solution adopted by this utility model to solve the above problems is: an AOI detection structure with multi-faceted PIN pins and a line scan, comprising: a support, wherein a PIN detection component and a line scan detection component are respectively disposed on opposite sides of the support;
[0006] The pin detection component is equipped with a U-axis motor fixedly mounted on the bracket. The U-axis motor drives a first rotating bracket to rotate around the U-axis. The first rotating bracket is equipped with a fixed bracket and a mounting bracket. The fixed bracket is equipped with a first vision module. The mounting bracket is equipped with a V-axis motor. The V-axis motor drives a second rotating bracket to rotate around the V-axis. The second rotating bracket is equipped with a first coaxial light source and a second coaxial light source facing different directions. The first coaxial light source provides coaxial illumination on the left and right sides, and the second coaxial light source provides coaxial illumination on the front and rear sides.
[0007] The line scan detection component is provided with a line scan bracket fixedly mounted on the bracket. The line scan bracket is equipped with a second vision module and a driver. The driver drives the line scan coaxial light source that cooperates with the second vision module to move up and down.
[0008] In some embodiments, the output shaft of the driver is fixedly connected to the coaxial light source of the line scanner, the line scanner bracket is equipped with a slide, the slide is connected to a guide rail, and the guide rail is fixedly connected to the coaxial light source of the line scanner.
[0009] In some embodiments, the bracket is equipped with a first limiting member on one side of the pin detection assembly, and the first rotating bracket is equipped with a second limiting member that cooperates with the first limiting member. The first limiting member and the second limiting member cooperate to limit the rotation of the first rotating bracket.
[0010] In some embodiments, the first rotating bracket is equipped with a third limiting member and a fourth limiting member, the second rotating bracket has a first side that cooperates with the third limiting member, and the second rotating bracket has a second side that cooperates with the fourth limiting member. The third limiting member and the fourth limiting member cooperate to limit the rotation of the second rotating bracket.
[0011] Furthermore, the third limiting member and the fourth limiting member are arranged in parallel, the angle between the first side and the second side is 90 degrees, and the third limiting member and the fourth limiting member limit the rotation range of the second rotating bracket to 0 to 90 degrees.
[0012] In some embodiments, the fixing bracket is provided with a plurality of connection holes along the longitudinal direction, and the connection holes are used to install the first vision module.
[0013] In some embodiments, the first vision module includes a pin detection camera and a pin detection lens, and the second vision module includes a line scan detection camera and a line scan detection lens.
[0014] In some embodiments, the driver is any one of a linear motor, a cylinder assembly, or a lead screw drive assembly.
[0015] The technical advantages of this invention are as follows: the bracket can be mounted on a 3-axis linear module to perform 3-axis movement, and the pin detection component performs U and V axis rotation, thereby enabling the first vision module to perform high-precision visual inspection of pins in multiple directions (front, back, left, and right); the line scan detection component moves up and down, thereby enabling the second vision module to perform overall line scan inspection of PCBs or electronic devices on the production line, and actively moves upward to avoid obstacles or when performing pin inspection. It utilizes a coaxial light source for line scanning to obtain a larger inspection and imaging range. Compared with traditional inspection equipment or mechanisms, the AOI inspection structure of this application can eliminate some vision inspection modules, drive modules, and transmission structures, meeting user needs while achieving a simplified structure, reducing the weight and volume of the load, reducing product costs, and reducing overall control difficulty, as well as the difficulty of modifying the program for different inspected items. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the pin detection component of this utility model;
[0018] Figure 3 This is a front view of the pin detection component of this utility model;
[0019] Figure 4 This is a schematic diagram of the line scan detection component of this utility model.
[0020] In the diagram, 1 is the support; 2 is the pin detection assembly; 20 is the U-axis motor; 21 is the first rotating support; 210 is the first limiting member; 211 is the second limiting member; 212 is the fixed support; 2120 is the connecting hole; 213 is the first vision module; 22 is the mounting bracket; 220 is the third limiting member; 221 is the fourth limiting member; 23 is the V-axis motor; 24 is the second rotating support; 240 is the first side; 241 is the second side; 25 is the first coaxial light source; 26 is the second coaxial light source; 3 is the line scan detection assembly; 30 is the line scan support; 31 is the slide; 310 is the guide rail; 32 is the second vision module; 33 is the line scan coaxial light source; 34 is the driver; and 340 is the output shaft. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this utility model more readily understood, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] This utility model discloses an AOI detection structure with multi-faceted PIN pins and a line scanner, such as Figure 1 As shown, it includes: a bracket 1, on which pin detection component 2 and line scan detection component 3 are respectively arranged on opposite sides; the bracket 1 can be installed on a 3-axis linear module (not shown in the figure) to obtain 3-axis movement drive; the 3-axis linear module is a conventional X, Y and Z axis drive component, such as an existing gantry crane component.
[0023] like Figure 2 , Figure 3 As shown, the pin detection component 2 is provided with a U-axis motor 20 fixedly mounted on the bracket 1. The U-axis motor 20 drives the first rotating bracket 21 to rotate around the U-axis. The first rotating bracket 21 is equipped with a fixed bracket 212 and a mounting bracket 22. The fixed bracket 212 is equipped with a first vision module 213. The mounting bracket 22 is equipped with a V-axis motor 23. The V-axis motor 23 drives the second rotating bracket 24 to rotate around the V-axis. The second rotating bracket 24 is equipped with a first coaxial light source 25 and a second coaxial light source 26 facing different directions. The first coaxial light source 25 provides coaxial illumination on the left and right sides, and the second coaxial light source 26 provides coaxial illumination on the front and rear sides. The first and second coaxial light sources are one of the line scan light sources.
[0024] like Figure 4 As shown, the line scan detection component 3 is provided with a line scan bracket 30 fixedly installed on the bracket 1. The line scan bracket 30 is equipped with a second vision module 32 and a driver 34. The driver 34 drives the line scan coaxial light source 33, which cooperates with the second vision module 32, to move up and down. The output shaft 340 of the driver 34 is fixedly connected to the line scan coaxial light source 33.
[0025] It should be noted that the first vision module 213 includes a pin detection camera and a pin detection lens, and the second vision module 32 includes a line scan detection camera and a line scan detection lens; these are existing conventional vision inspection components. The driver 34 can be any one of a linear motor, a cylinder assembly, or a lead screw drive assembly. Figure 4 The one in the middle is a dual-shaft cylinder assembly.
[0026] Specifically, in combination Figure 2 , Figure 3 As shown, the bracket 1 is equipped with a first limiting member 210 on one side of the pin detection component 2, and the first rotating bracket 21 is equipped with a second limiting member 211 that cooperates with the first limiting member 210. There are two second limiting members 211 arranged opposite to each other. The first limiting member 210 and the second limiting member 211 cooperate to limit the rotation of the first rotating bracket 21, and the rotation range is 0-180 degrees.
[0027] The first rotating bracket 21 is equipped with a third limiting member 220 and a fourth limiting member 221. The second rotating bracket 24 has a first side 240 that cooperates with the third limiting member 220 and a second side 241 that cooperates with the fourth limiting member 221. The third limiting member 220 and the fourth limiting member 221 cooperate to limit the rotation of the second rotating bracket 24, and the rotation range is 0-90 degrees.
[0028] Specifically, such as Figure 3 As shown, the third limiting member 220 and the fourth limiting member 221 are arranged in parallel, and the included angle between the first side 240 and the second side 241 is 90 degrees. The third limiting member 220 and the fourth limiting member 221 limit the rotation range of the second rotating bracket 24 to 0 to 90 degrees. The fixed bracket 212 is provided with a plurality of connecting holes 2120 along the longitudinal direction. The connecting holes 2120 are used to install the first vision module 213 and to adjust the installation height of the first vision module 213.
[0029] Specifically, such as Figure 3 As shown, the output shaft 340 of the driver 34 is fixedly connected to the coaxial light source 33 of the line scan, the line scan bracket 30 is equipped with a slide 31, the slide 31 is connected to the guide rail 310, and the guide rail 310 is fixedly connected to the coaxial light source 33 of the line scan.
[0030] In use, initially, the first coaxial light source 25 provides a rearward light source for the first visual module 213. The U-axis motor 20 drives the first rotating bracket 21 to rotate 180 degrees, at which point the orientation of the first coaxial light source 25 changes to forward, thus providing a forward light source for the first visual module 213. In the angled state, the V-axis motor 23 drives the second rotating bracket 24 to rotate 90 degrees. At this time, the light source aligned with the first visual module 213 changes from the first coaxial light source 25 to the second coaxial light source 26. After alignment, the second coaxial light source 26 provides a leftward light source for the first visual module 213. The coaxial motor 20 drives the first rotating bracket 21 to rotate 180 degrees. At this time, the orientation of the second coaxial light source 26 changes to the right, thereby providing a right-facing light source for the first vision module 213. The 3-axis linear module (not shown in the figure) performs Z-axis displacement on the AOI detection structure of this application to achieve lateral vertical line scan detection. When performing X and Y-axis displacement, line scan detection is performed on different positions of the PCB or on different PCBs or products. The 3-axis linear module drives the line scan detection component 3 in the same way as above, but the line scan detection component 3 can perform longitudinal displacement through the driver 34 to perform avoidance and alignment during the detection process.
[0031] In summary, the aforementioned bracket can be mounted on a 3-axis linear module to perform 3-axis movement. The pin detection component performs U and V-axis rotation, enabling the first vision module to perform high-precision visual inspection of pins in various orientations (front, back, left, and right). The line scan detection component moves up and down, allowing the second vision module to perform overall line scan inspection of PCBs or electronic components on the production line. It also actively moves upwards to avoid obstacles or pin detection, utilizing a coaxial light source for a larger inspection and imaging range. Compared to traditional inspection equipment or mechanisms, the AOI inspection structure of this application eliminates some vision inspection modules, drive modules, and transmission structures, meeting user needs while achieving a simplified structure, reduced load weight and volume, lower product costs, reduced overall control difficulty, and reduced difficulty in modifying programs for different inspected items.
[0032] The embodiments described above are merely illustrative of one or more implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. An AOI detection structure with multi-faceted PIN pins and a line scanner, characterized in that, include: The bracket has a pin detection component and a line scan detection component respectively arranged on opposite sides; The pin detection component is equipped with a U-axis motor fixedly mounted on the bracket. The U-axis motor drives a first rotating bracket to rotate around the U-axis. The first rotating bracket is equipped with a fixed bracket and a mounting bracket. The fixed bracket is equipped with a first vision module. The mounting bracket is equipped with a V-axis motor. The V-axis motor drives a second rotating bracket to rotate around the V-axis. The second rotating bracket is equipped with a first coaxial light source and a second coaxial light source facing different directions. The first coaxial light source provides coaxial illumination on the left and right sides, and the second coaxial light source provides coaxial illumination on the front and rear sides. The line scan detection component is provided with a line scan bracket fixedly mounted on the bracket. The line scan bracket is equipped with a second vision module and a driver. The driver drives the line scan coaxial light source that cooperates with the second vision module to move up and down.
2. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The output shaft of the driver is fixedly connected to the coaxial light source of the line scanner. The line scanner bracket is equipped with a slide, which is connected to a guide rail. The guide rail is fixedly connected to the coaxial light source of the line scanner.
3. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The bracket is equipped with a first limiting member on one side of the pin detection assembly, and the first rotating bracket is equipped with a second limiting member that cooperates with the first limiting member. The first limiting member and the second limiting member cooperate to limit the rotation of the first rotating bracket.
4. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The first rotating bracket is equipped with a third limiting member and a fourth limiting member. The second rotating bracket has a first side that cooperates with the third limiting member and a second side that cooperates with the fourth limiting member. The third limiting member and the fourth limiting member cooperate to limit the rotation of the second rotating bracket.
5. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 4, characterized in that, The third limiting member and the fourth limiting member are arranged in parallel, and the included angle between the first side and the second side is 90 degrees. The third limiting member and the fourth limiting member limit the rotation range of the second rotating bracket to 0 to 90 degrees.
6. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The fixed bracket has a plurality of connection holes along its longitudinal direction, and the connection holes are used to install the first vision module.
7. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The first vision module includes a pin detection camera and a pin detection lens, and the second vision module includes a line scan detection camera and a line scan detection lens.
8. The AOI detection structure with multi-faceted PIN pins and line scan according to claim 1, characterized in that, The driver can be any one of a linear motor, a cylinder assembly, or a lead screw drive assembly.