PCB alignment mechanism
By designing a multi-dimensional adjustable PCB alignment mechanism, the problems of limited field of view adjustment and inflexible spacing adjustment in existing technologies have been solved, thereby improving alignment accuracy and production efficiency and adapting to diverse product needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-03
AI Technical Summary
Existing PCB and COF alignment mechanisms suffer from limited field of view adjustment and inflexible spacing adjustment of imaging units, making it difficult to adapt to diverse products, resulting in low alignment accuracy and low production efficiency.
Design a shooting unit that includes symmetrically arranged shooting units, combined with a PCB alignment mechanism of horizontal, vertical, longitudinal, and rotation adjustment units, to achieve all-round field of view adjustment and flexible spacing adjustment. The horizontal adjustment unit expands or shrinks the field of view, the rotation adjustment unit changes the spacing, the vertical adjustment unit adjusts the height, and the longitudinal adjustment unit adjusts the focal length.
It achieves precise alignment of PCBs and COF products of different specifications, improves alignment accuracy and production efficiency, adapts to diverse alignment scenarios, and enhances the versatility and adaptability of the equipment.
Smart Images
Figure CN224083802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alignment technology, and in particular to an alignment mechanism for a PCB. Background Technology
[0002] In the electronics manufacturing industry, the alignment and assembly of printed circuit boards (PCBs) and flexible chip-on-film (COF) films is a fundamental step in key processes such as chip packaging. With the rapid development of technologies such as 5G communication, artificial intelligence, and the Internet of Things, electronic products are constantly evolving towards miniaturization and high integration, which places stringent requirements on the alignment accuracy of PCBs and COFs.
[0003] Currently, most existing PCB and COF alignment mechanisms on the market employ traditional imaging unit layouts and adjustment methods. Some devices have limited imaging unit field-of-view adjustment functions, making it difficult to adapt to PCB and COF products of different sizes and specifications. This leads to blind spots or image distortion during alignment, affecting alignment accuracy. While some alignment mechanisms offer multi-directional adjustment capabilities, the loose structure and complex connections between adjustment units make adjustment operations cumbersome, reducing production efficiency and increasing the risk of alignment failure due to accumulated adjustment errors. Furthermore, existing mechanisms lack flexible rotational adjustment designs for the spacing between imaging units, failing to meet diverse alignment requirements and limiting the equipment's versatility and adaptability.
[0004] Therefore, developing a PCB alignment mechanism with multi-dimensional flexible adjustment and precise control of the field of view and spacing of the imaging unit has become the key to breaking through current technical bottlenecks and improving electronic manufacturing efficiency and product quality. Utility Model Content
[0005] This utility model proposes a PCB alignment mechanism to solve the technical problems of existing PCB and COF alignment mechanisms, such as limited field of view adjustment, inflexible adjustment of shooting unit spacing, and difficulty in adapting to diverse products.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0007] This utility model provides a PCB alignment mechanism for real-time alignment of PCB and COF. It includes an imaging unit, which includes a first imaging part and a second imaging part arranged symmetrically, as well as a horizontal adjustment unit, a vertical adjustment unit, and a longitudinal adjustment unit for adjusting the field of view of the first imaging part and the second imaging part, and also includes a rotation adjustment unit for adjusting the distance between the first imaging part and the second imaging part.
[0008] Furthermore, the horizontal adjustment unit is connected to the rotation adjustment unit, the rotation adjustment unit is connected to the vertical adjustment unit, the vertical adjustment unit is connected to the shooting unit, and the vertical adjustment unit is connected to the shooting unit.
[0009] Preferably, the lateral adjustment unit includes a base plate, a first lateral adjustment part and a second lateral adjustment part are provided on the rear side of the base plate, and a guide rail assembly is provided on the front side. The base plate is divided into a first moving area and a second moving area. The first lateral adjustment part moves within the first moving area, and the second lateral adjustment part moves within the second moving area.
[0010] Furthermore, the guide rail assembly includes a first slider and a second slider, the first slider being connected to a first connecting plate and the second slider being connected to a second connecting plate; the rotation adjustment unit includes a first rotation adjustment part and a second rotation adjustment part, the first connecting plate being connected to the first rotation adjustment part and the second connecting plate being connected to the second rotation adjustment part.
[0011] Preferably, the vertical adjustment unit includes a first vertical adjustment part and a second vertical adjustment part, the first vertical adjustment part being connected to a first rotation adjustment part, and the second vertical adjustment part being connected to a second rotation adjustment part;
[0012] Furthermore, the longitudinal adjustment unit includes a first longitudinal adjustment section and a second longitudinal adjustment section, the right side of the first longitudinal adjustment section is connected to the first longitudinal adjustment section, and the right side of the second longitudinal adjustment section is connected to the second longitudinal adjustment section;
[0013] Furthermore, the shooting unit includes a first shooting part and a second shooting part, the left side of the first vertical adjustment part is connected to the first shooting part, and the left side of the second vertical adjustment part is connected to the second shooting part;
[0014] Furthermore, the first rotation adjustment part includes a first rotating shaft mounting plate and a first rotating shaft that passes through the first rotating shaft mounting plate and is fixed to a first connecting plate. The first rotating shaft mounting plate is connected to a first longitudinal mounting plate, and the first longitudinal mounting plate is connected to the first longitudinal adjustment part. The first rotation adjustment part also includes a first limiting block fixed to the first rotating shaft mounting plate and a first fixing block fixed to the first connecting plate. A first adjusting member and a second adjusting member are fixed on the first fixing block. The first adjusting member passes through the first fixing block and is connected to the first limiting block.
[0015] Preferably, the first shooting unit includes a quick-release assembly, which is connected to the first vertical adjustment unit. A first camera and a first light source connected to the first camera are fixed on the quick-release assembly.
[0016] Preferably, the quick-release assembly includes a light source fixing plate, which has multiple concave grooves, and a fixing member passes through the concave grooves to fix the light source fixing plate and the camera fixing plate.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] This utility model provides a PCB alignment mechanism. Through the symmetrical arrangement of a first and a second imaging unit, and the use of a horizontal adjustment unit, a vertical adjustment unit, and a longitudinal adjustment unit, the field of view of the first and second imaging units can be adjusted in all directions. At the same time, the distance between the first and second imaging units can be flexibly changed by using a rotation adjustment unit to achieve alignment of PCBs and COF products of different specifications. Attached Figure Description
[0019] To more clearly illustrate the technical solution proposed by this utility model, a detailed description is provided below in conjunction with the embodiments and accompanying drawings. It should be understood that the accompanying drawings described below are merely some embodiments of this utility model, and those skilled in the art can make changes to these drawings under the concept of this utility model.
[0020] Figure 1 An assembly perspective view of the alignment mechanism for the PCB provided by this utility model;
[0021] Figure 2 A front view of the lateral adjustment unit provided by this utility model;
[0022] Figure 3 Rear view of the lateral adjustment unit provided by this utility model;
[0023] Figure 4 An assembly perspective view of the first rotary adjustment part provided by this utility model;
[0024] Figure 5 An assembly perspective view of the first vertical adjustment part and the first longitudinal adjustment part provided for this utility model;
[0025] Figure 6 An assembly perspective view of the first imaging unit provided by this utility model.
[0026] 1. First lateral adjustment part; 11. First screw; 12. First screw slider; 13. Third connecting plate; 2. Second lateral adjustment part; 21. Second screw; 22. Second screw slider; 23. Fourth connecting plate; 24. First slider; 25. Second slider; 26. Base plate; 27. First connecting plate; 3. First rotation adjustment part; 31. First fixing block; 32. First limiting block; 33. First rotating shaft; 34. First rotating shaft mounting plate; 35. First longitudinal mounting plate; 36. First adjusting component; 37. Second adjusting component; 4. Second rotation adjustment part; 5. First vertical adjustment part; 6. Second vertical adjustment part; 7. First longitudinal adjustment part; 8. Second longitudinal adjustment part; 9. First shooting part; 91. First camera; 92. First light source; 93. Camera fixing part; 931. Camera fixing plate; 94. Light source fixing plate; 10. Second shooting part. Detailed Implementation
[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] Please refer to the following: Figure 1 In this embodiment, a PCB alignment mechanism is used for real-time alignment of the PCB and COF. The mechanism includes an imaging unit, which includes a first imaging part 9 and a second imaging part 10 arranged symmetrically, as well as a horizontal adjustment unit, a vertical adjustment unit, and a longitudinal adjustment unit for adjusting the field of view of the first imaging part 9 and the second imaging part 10. The mechanism also includes a rotation adjustment unit for adjusting the distance between the first imaging part 9 and the second imaging part 10.
[0029] Please refer to the following: Figure 2 , Figure 3 In this embodiment, the lateral adjustment unit is based on the base plate 26. A first lateral adjustment part 1 and a second lateral adjustment part 2 are provided on the rear side of the base plate 26, and a guide rail assembly is installed on the front side. The surface of the base plate 26 is divided into a first moving area and a second moving area, which allow the first lateral adjustment part 1 and the second lateral adjustment part 2 to slide in the horizontal direction, thereby expanding or contracting the lateral field of view of the shooting unit.
[0030] Specifically, the guide rail assembly includes a first slider 24 and a second slider 25. The first lateral adjustment part 1 includes a first screw 11 and a first screw slider 12. The first screw slider 12 is connected to a third connecting plate 13. The other side of the third connecting plate 13 is connected to a first fixing block 31. The lower part of the first fixing block 31 is connected to the first connecting plate 27. Therefore, the third connecting plate 13 moves laterally on the first screw 11 within the first moving area via the first screw slider 12 and the first slider 24. The second lateral adjustment part 2 includes a second screw 21 and a second screw slider 22. The second screw slider 22 is connected to a fourth connecting plate 23. The other side of the fourth connecting plate 23 is connected to a second fixing block. The lower part of the second fixing block is connected to the second connecting plate. Therefore, the fourth connecting plate 23 moves laterally on the second screw 21 within the second moving area via the second screw slider 22 and the second slider 25, driving the shooting unit to adjust its lateral position synchronously, thus avoiding shooting blind spots during real-time alignment.
[0031] When it is necessary to expand the lateral field of view, the first lateral adjustment part 1 and the second lateral adjustment part 2 can be adjusted to slide within the corresponding first and second moving areas. The first slider 24 and the second slider 25 move synchronously along the guide rail, thereby increasing the lateral distance between the first shooting part 9 and the second shooting part 10 and covering a larger PCB or COF edge area.
[0032] Please refer to the following: Figure 4 In this embodiment, the rotation adjustment unit includes a first rotation adjustment part 3 and a second rotation adjustment part 4, which are respectively connected to the first connecting plate 27 and the second connecting plate. When the PCB to be aligned is small and the minimum distance between the first imaging part 9 and the second imaging part 10 cannot be adjusted by the first lateral adjustment part 1 and the second lateral adjustment part 2, the rotation angle of the first rotation adjustment part 3 and the second rotation adjustment part 4 is adjusted so that the first imaging part 9 is tilted to the right and the second imaging part 10 is tilted to the left.
[0033] The first rotating shaft 33 passes through the first rotating shaft mounting plate 34 and is fixed to the first connecting plate 27. A first limiting block 32 is fixed on the first rotating shaft mounting plate 34. The first rotating shaft mounting plate 34 is connected to the first longitudinal mounting plate 35, which is connected to the first longitudinal adjusting part 7. A first fixing block 31 is fixed on the first connecting plate 27. A first adjusting member 36 and a second adjusting member 37 are fixed on the first fixing block 31. The first adjusting member 36 passes through the first fixing block 31 and is connected to the first limiting block 32. When adjusting the first rotation adjusting part 3, the first adjusting member 36 is released, and the first limiting block 32 is pushed by the second adjusting member 37, thus realizing the rotation of the first shooting part 9 around the first rotating shaft 33. After rotation, tighten the first adjusting part 36. The first adjusting part 36 and the second adjusting part 37 can be micro heads. The structure of the second rotating adjusting part 4 is symmetrical with that of the first rotating adjusting part 3. The two work together to change the distance and angle between the first shooting part 9 and the second shooting part 10 to adapt to different alignment scenarios. The first shooting part 9 and the second shooting part 10 are rotated inward by the first rotating adjusting part 3 and the second rotating adjusting part 4. The first shooting part 9 directly adjusts the angle of the first longitudinal mounting plate 35. The first longitudinal mounting plate 35 is connected to the first shooting part 9, which reduces the distance. When processing wide PCBs, rotate outward to increase the distance and ensure that the shooting field of view completely covers the PCB edge marking points.
[0034] Please refer to the following: Figure 5 In this embodiment, the vertical adjustment unit includes a first vertical adjustment part 5 and a second vertical adjustment part 6, which are respectively connected to the first rotation adjustment part 3 and the second rotation adjustment part 4. The first vertical adjustment part 5 is fixed to the first longitudinal adjustment part 7, and its left side is connected to the first shooting part 9. The longitudinal adjustment unit includes a first longitudinal adjustment part 7 and a second longitudinal adjustment part 8, which are respectively connected to the left and right sides of the first rotation adjustment part 3 and the second rotation adjustment part 4.
[0035] The first vertical adjustment unit 5, the second vertical adjustment unit 6, the first longitudinal adjustment unit 7, and the second longitudinal adjustment unit 8 can all be X-axis platform structures. When all are X-axis platform structures, the first vertical adjustment unit 5, the second vertical adjustment unit 6, the first longitudinal adjustment unit 7, and the second longitudinal adjustment unit 8 are perpendicular to each other. Through a manual slide, the first imaging unit 9 and the second imaging unit 10 can be moved along the longitudinal and vertical directions to adjust the imaging height and move back and forth along the horizontal depth direction, and adjust the imaging focal length to ensure clear imaging of the PCB and COF marking points and avoid image blurring.
[0036] Please refer to the following: Figure 6 In this embodiment, both the first imaging unit 9 and the second imaging unit 10 include quick-release components. These components are connected to the first vertical adjustment unit 5. A first camera 91 and a first light source 92 connected to the first camera 91 are fixed to the quick-release components. Each quick-release component includes a camera fixing part 93 and a light source fixing plate 94. The camera fixing part 93 includes a camera fixing plate 931. The light source fixing plate 94 has multiple concave grooves, and fasteners (such as bolts) pass through these grooves to connect to the camera fixing plate 931. The concave groove design allows for vertical fine-tuning of the light source fixing plate 94 within a certain range, facilitating the position calibration of the first camera 91 and the first light source 92. The first camera 91 and the first light source 92 (such as a ring light source) are fixed to the quick-release components. The first light source 92 provides uniform illumination, reducing the impact of reflections on imaging. When the first light source 92 needs to be replaced, simply loosen the fasteners to remove the light source fixing plate 94. When the first camera 91 needs to be disassembled, simply remove the camera fixing part 93 that fixes the first camera 91, significantly shortening maintenance time and improving production efficiency.
[0037] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0038] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0040] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A mechanism for aligning a PCB with a COF in real time, comprising: The shooting unit comprises a first shooting part and a second shooting part arranged symmetrically, a horizontal adjusting unit, a vertical adjusting unit, a longitudinal adjusting unit for adjusting the field of view of the first shooting part and the second shooting part, and a rotating adjusting unit for adjusting the distance between the first shooting part and the second shooting part.
2. The alignment mechanism of the PCB according to claim 1, wherein, The horizontal adjusting unit is connected with the rotating adjusting unit, the rotating adjusting unit is connected with the longitudinal adjusting unit, the longitudinal adjusting unit is connected with the vertical adjusting unit, and the vertical adjusting unit is connected with the shooting unit.
3. The alignment mechanism of the PCB as claimed in claim 2, wherein, The horizontal adjusting unit comprises a bottom plate, a first horizontal adjusting part and a second horizontal adjusting part arranged on the rear side of the bottom plate, and a guide rail assembly arranged on the front side of the bottom plate.
4. The alignment mechanism of the PCB according to claim 3, wherein, The guide rail assembly comprises a first sliding block and a second sliding block, the first sliding block is connected with a first connecting plate, and the second sliding block is connected with a second connecting plate.
5. The alignment mechanism of the PCB as claimed in claim 4, wherein, The rotating adjusting unit comprises a first rotating adjusting part and a second rotating adjusting part, the first connecting plate is connected with the first rotating adjusting part, and the second connecting plate is connected with the second rotating adjusting part.
6. The alignment mechanism of the PCB as claimed in claim 5, wherein, The vertical adjusting unit comprises a first vertical adjusting part and a second vertical adjusting part, the first vertical adjusting part is connected with the first rotating adjusting part, and the second vertical adjusting part is connected with the second rotating adjusting part.
7. The alignment mechanism of the PCB as claimed in claim 6, wherein, The longitudinal adjusting unit comprises a first longitudinal adjusting part and a second longitudinal adjusting part, the right side of the first vertical adjusting part is connected with the first longitudinal adjusting part, and the right side of the second vertical adjusting part is connected with the second longitudinal adjusting part.
8. The alignment mechanism of the PCB as claimed in claim 6, wherein, The shooting unit comprises a first shooting part and a second shooting part, the left side of the first vertical adjusting part is connected with the first shooting part, and the left side of the second vertical adjusting part is connected with the second shooting part.
9. The alignment mechanism of the PCB as claimed in claim 7, wherein, The first rotating adjusting part comprises a first rotating shaft mounting plate, a first rotating shaft fixed on the first connecting plate through the first rotating shaft mounting plate, a first longitudinal mounting plate connected with the first rotating shaft mounting plate, and the first longitudinal mounting plate is connected with the first longitudinal adjusting part.
10. The alignment mechanism of the PCB according to claim 9, wherein, The first rotating adjusting part further comprises a first limiting block fixed on the first rotating shaft mounting plate and a first fixing block fixed on the first connecting plate, and the first fixing block is fixed with a first adjusting piece and a second adjusting piece, and the first adjusting piece is connected with the first limiting block through the first fixing block. The first shooting part comprises a quick release assembly, the quick release assembly is connected with the first vertical adjusting part, and the quick release assembly is fixed with a first camera and a first light source connected with the first camera. The quick release assembly comprises a light source fixing plate, a plurality of recessed grooves arranged on the light source fixing plate, and a fixing piece for fixing the light source fixing plate and a camera fixing plate through the recessed grooves.