Rack and AOI detection equipment

Abstract

The utility model discloses a rack and AO I detection equipment, and the rack comprises a plurality of cylinders, at least one cylinder is a clearance cylinder, the clearance cylinder is provided with a clearance section, at least one side of the clearance section is provided with an opening, and the clearance section is internally provided with an accommodation space for realizing the installation of a mobile module. According to the rack, the maximum effective stroke of the optical imaging assembly on the X-axis and the Y-axis is guaranteed while the structural stability requirement is met.

Description

Technical Field

[0001] This application relates to the technical field of AOI inspection equipment, and more particularly to a rack and AOI inspection equipment. Background Technology

[0002] In AOI inspection equipment or automated production lines, traditional AOI products only inspect one side, which is inefficient. For PCBs that require inspection on both sides, existing AOI equipment generally adopts a top-and-bottom simultaneous inspection approach. For AOI equipment capable of top-and-bottom simultaneous inspection, the large number of components required necessitates a high degree of rack structural stability. Existing racks, while meeting structural stability requirements, also limit their effective travel along the X and Y axes. Utility Model Content

[0003] The purpose of this application is to provide a rack and AOI inspection equipment that, while ensuring the structural stability of the rack, guarantees the maximum effective travel of the optical imaging components on the XY axis.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On the one hand, a frame is provided, including a plurality of columns, at least one of the columns being a clearance column, the clearance column having a clearance section, and the clearance section having an opening on at least one side, so that the clearance section has an accommodating space for module installation.

[0006] Specifically, the module can be a mobile module. By opening a clearance section on the clearance column and creating an opening on one side to form a space for the mobile module to be installed, the mobile module can be partially installed in the clearance space, thereby increasing the maximum effective stroke of the mobile module.

[0007] Furthermore, it also includes a first mounting plate, which has a module mounting position and at least one end extends into the receiving space, forming a module mounting area with the receiving space. The mobile module can be mounted on the first mounting plate, and since at least one end of the first mounting plate extends into the receiving space, the mobile module can be inserted into the receiving space during installation, allowing the mobile module to utilize the mounting space to the maximum extent, thereby ensuring the effective travel of the mobile module.

[0008] Furthermore, the clearance column also includes a first section and a second section, with the clearance section located between the first and second sections. The clearance section has at least two opposing support walls, and the opening is located between the two support walls. The first and second sections are connected by the two support walls. This avoids creating openings in the first and second sections; instead, openings are created in the two opposing support walls to effectively avoid the two ends of the moving module, ensuring that the moving module can achieve maximum effective travel in the X-axis or Y-axis direction.

[0009] Furthermore, the height of the clearance section is less than the height of the first section and the second section. Because the height of the clearance section is smaller than both the first and second sections, the structural strength of the support wall can still be guaranteed after the opening is made, and the probability of deformation is low.

[0010] Furthermore, the wall thickness of the support wall is greater than that of the first segment and also greater than that of the second segment. Since openings are formed in the support wall, it is necessary to ensure the connection strength and support strength of the support wall. Therefore, increasing the wall thickness of the support wall ensures that its structural strength is not affected by excessive openings, thereby guaranteeing the overall strength of the frame.

[0011] Furthermore, a first connecting plate is provided at the bottom of the first segment, and a second connecting plate is provided on one side of the two supporting walls opposite to the first segment. The first connecting plate and the second connecting plate are aligned and locked together. The cross-section of the first segment is smaller than the cross-section of the clearance segment. The connection between the first segment and the supporting walls is achieved through the connecting plates, resulting in a larger contact area, better positioning, and a more stable structure after connection. Moreover, increasing the cross-section of the clearance segment can improve its supporting force and solve the problem of reduced supporting force caused by the openings in the clearance segment.

[0012] Furthermore, a first crossbeam is provided between the two opposing second segments arranged along the Y-axis. The first crossbeam is located below the first mounting plate, and both ends of the first mounting plate extend to the tops of the two second segments. The two support walls are disposed on the first mounting plate. The first crossbeam enhances the stability between the two second segments, and the first mounting plate, which extends to the tops of the two second segments, works together with the first crossbeam to support the first mounting plate. The Y-axis moving module is mounted on the first mounting plate, resulting in better stability and ensuring the maximum effective travel in the Y-axis direction.

[0013] Furthermore, a second crossbeam is provided between each pair of opposing first segments along the Y-axis. The second crossbeam is used to mount the feeding mechanism. The second crossbeam enhances the stability between the two first segments and provides a mounting support structure for the feeding mechanism.

[0014] Furthermore, a third crossbeam is arranged parallel to the second crossbeam above it, and a second mounting plate is arranged above the third crossbeam. The two ends of the second mounting plate extend to the top of the first segment. The second mounting plate extends to the top of the two first segments, ensuring the maximum installation length of the second mounting plate. The Y-axis moving module is no longer interfered with by other structures when mounted on the second mounting plate. Therefore, the Y-axis moving module on the second support frame can naturally ensure that it has the maximum effective Y-axis stroke.

[0015] Furthermore, a first reinforcing beam is provided between the two first segments, and a second reinforcing beam is provided between the two second mounting plates. The ends of the two second mounting plates facing away from the first reinforcing beam form an installation space with the second reinforcing beam.

[0016] On the other hand, an AOI inspection device is also provided, including a mobile module and a frame as described in any of the above, the mobile module including a lead screw and a motor, the drive end of the motor being connected to the lead screw, and the motor being at least partially located within the receiving space.

[0017] Furthermore, the moving module is located between the two clearance columns, and one end of the motor and the lead screw of the moving module are respectively set in the accommodating space of the two clearance columns.

[0018] Furthermore, it also includes two detection mechanisms, which are respectively installed on the frame, and the detection ends of the two detection mechanisms are arranged opposite to each other. The detection end of each detection mechanism can move relative to the frame in the X-axis direction and the Y-axis direction, respectively. The detection end of one of the detection mechanisms can move along the Y-axis direction through the moving module.

[0019] The beneficial effects of this application are as follows: the frame is composed of several columns, at least one of which is a clearance column. By forming a clearance section on the clearance column and setting an opening on the clearance section, a space for accommodating a movable module is provided in the clearance section. In this way, the movable module can be extended into the space for installation, so that the movable module can make greater use of the effective installation space and maximize the effective stroke of the movable module.

[0020] Furthermore, the height of the clearance section in the Z-axis direction is less than that of the second and first sections. Compared to directly creating openings in the second or first section, creating openings in the smaller clearance section ensures that the clearance section still has sufficient structural strength to connect the first and second sections even after the openings are made. This effectively guarantees deformation resistance and structural strength with minimal height, while also ensuring that the overall structural strength of the frame is not affected. This design maintains the stability of the frame while minimizing the occupation of the columns on the effective travel of the X and Y axes, resulting in a wider detection range and further improved detection efficiency. The second and first sections, as the main load-bearing structures of the frame, do not require additional openings, ensuring solid support and guaranteeing the stability of the entire frame during high-speed, high-precision detection. Attached Figure Description

[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a perspective view of the rack described in the embodiments of this application;

[0023] Figure 2 This is an exploded view of the rack described in the embodiments of this application;

[0024] Figure 3 This is a perspective view of the second support frame and the clearance section in an embodiment of this application;

[0025] Figure 4 This is a perspective view of the first support frame in an embodiment of this application;

[0026] Figure 5 This is a perspective view of the AOI detection equipment described in the embodiments of this application.

[0027] In the diagram: 1. Frame; 101. Column; 102. Clearance column; 103. First support frame; 104. Second support frame; 105. Buffer component; 106. Reinforcing beam; 1021. First section; 1022. Second section; 1023. Clearance section; 1024. Opening; 1025. Support wall; 1026. Second connecting plate; 1031. Second crossbeam; 1032. Third crossbeam; 1033. Second mounting plate. 1. Mounting plate; 1041. Base plate; 1042. First crossbeam; 1043. First mounting plate; 1061. First reinforcing beam; 1062. Second reinforcing beam; 2. Detection mechanism; 201. X-axis moving module; 202. Y-axis moving module; 203. Optical imaging assembly; 204. Electrical control box assembly; 205. Feeding mechanism; 2021. Y-axis motor; 2022. Y-axis lead screw; 2023. Support end seat. Detailed Implementation

[0028] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] AOI inspection equipment, short for Automatic Optical Inspection, is also known as machine vision inspection technology or automatic vision inspection. It is a device that uses optical principles to detect common defects encountered in welding production. During automatic inspection, AOI equipment automatically scans the target product (such as PCBA products) using a high-definition CCD camera, acquires images, and compares the tested points with acceptable parameters in a database. After image processing, the equipment can detect defects on the target product and display or mark them on a monitor or with automatic indicators, allowing maintenance personnel to repair them and SMT engineers to improve processes.

[0032] AOI inspection equipment requires absolute stability and accuracy during inspection, thus placing increasingly higher demands on the rigidity of the frame. However, in actual production, to meet layout requirements, it is desirable to minimize the width and length dimensions of the equipment while also being able to inspect larger products, thus addressing diverse product needs. This means the equipment width is limited, yet the travel distance in the width direction must be maximized. Under these design requirements, existing AOI inspection equipment largely uses a gantry XY-axis solution, where the optical imaging components move along the X and Y axes via a gantry structure. Taking an X-axis gantry structure as an example, the X-axis moving module needs to be positioned between the gantry frames to achieve upward movement along the X-axis. However, for AOI products requiring simultaneous inspection of both upper and lower components, to accommodate two inspection mechanisms within a limited space, two moving modules are often installed on the same gantry. The lower moving module is constrained by the columns on either side of the gantry, resulting in limited installation space and consequently, limited travel distance. Furthermore, the increasing demand for high speed and high precision in equipment places increasingly higher demands on the frame rigidity. At the same time, the requirement for a low center of gravity in the rack must be taken into account in order to achieve better stability. These many constraints have brought new challenges to the design of the rack and the whole machine.

[0033] Based on the existing problems, the rack needs to achieve a relative balance between structural stability and equipment versatility. A common practice is to avoid installing the moving module between the moving module and the column. Simply put, the moving module is placed on one side of the column, thereby avoiding the column from occupying the installation space of the moving module and reducing the effective moving stroke. However, this approach will result in the effective stroke in another axis, which is a trade-off, and thus the design of the rack has stalled.

[0034] To address the aforementioned challenges, this embodiment provides a rack, such as... Figures 1-4 As shown, it includes several columns 101, at least one of the columns 101 is a clearance column 102, the clearance column 102 is provided with a clearance section 1023, the clearance section 1023 is provided with an opening 1024 on at least one side, so that the clearance section 1023 has an accommodating space for module installation.

[0035] Based on the above scheme, in specific implementation, the module can be selected as a mobile module. The mobile module is installed in the accommodating space of the clearance column 102, effectively utilizing the internal space resources of the frame 1 and avoiding the occupation of the installation space of the mobile module by the column 101. Thus, a larger range of movement is achieved without increasing the overall size of the frame 1. At the same time, the design of the clearance column 102 does not sacrifice the overall stability and rigidity of the frame 1. Through reasonable structural design, the clearance column 102 is ensured to have sufficient strength and rigidity to meet the stringent requirements of stability and accuracy of AOI inspection equipment during high-speed and high-precision inspection.

[0036] It is worth mentioning that the frame 1 can be manufactured using a one-piece design. This integrated design greatly facilitates manufacturing and installation, simplifying the production process, improving efficiency, and making the frame 1 easier to adjust and position during installation, thus reducing installation difficulty and cost. More importantly, the integrated design ensures the structural strength of the column 101 as much as possible. Through integral casting or welding, the various parts of the frame 1 can form a tight and robust whole, avoiding problems such as loosening and deformation at joints that may occur in traditional split designs. This high-strength structural design not only improves the load-bearing capacity and stability of the frame 1 but also provides more reliable support and protection for the AOI inspection equipment during high-speed and high-precision inspection.

[0037] In some embodiments, a first mounting plate 1043 is further included. The first mounting plate 1043 has a module mounting position, and at least one end extends into the receiving space, forming a module mounting area with the receiving space. The module mounting position on the first mounting plate 1043 is specifically designed for the installation of mobile modules. Ingeniously, at least one end of the first mounting plate 1043 extends into the receiving space of the clearance column 102, together forming a module mounting area. The brilliance of this design lies in that it allows the mobile module to be directly mounted on the first mounting plate 1043, and because at least one end of the first mounting plate 1043 extends into the receiving space, the mobile module can easily be inserted into this space during installation. This layout not only makes full use of every inch of space inside the rack 1, but also ensures that the mobile module is not obstructed by structures such as the column 101 during installation, thereby maximizing the effective travel of the mobile module. Furthermore, the design of the first mounting plate 1043 also takes into account the requirements of stability and rigidity. Through reasonable material selection and structural design, the first mounting plate 1043 can firmly support the moving module, ensuring its stability during high-speed and high-precision testing. At the same time, the close cooperation between the first mounting plate 1043 and the clearance column 102 further enhances the overall structural strength of the frame 1.

[0038] In the frame 1 design of this embodiment, the construction of the clearance column 102 is further refined to more precisely meet the space requirements and stability requirements of the mobile module. The clearance column 102 is divided into a first section 1021, a second section 1022, and a clearance section 1023 located between the two. This layout not only ensures the overall structural strength of the frame 1 but also provides sufficient installation space for the mobile module. The design of the clearance section 1023 is particularly critical. It includes at least two opposing support walls 1025, which constitute the main structure of the clearance section 1023 and undertake the important task of connecting the first section 1021 and the second section 1022. It is worth noting that the opening 1024 is not directly opened on the second section 1022 or the first section 1021, but is cleverly placed between the two support walls 1025. This design avoids weakening the overall structural strength of the column 101 by the opening 1024, and effectively avoids obstructing the two ends of the moving module, ensuring that the moving module is not hindered during installation and use. More specifically, by opening the opening 1024 in the two oppositely arranged support walls 1025, a spacious accommodation space is provided for the moving module. This space not only allows the moving module to move freely in the X-axis or Y-axis direction, but also maximizes its effective travel. Because the opening 1024 is located between the support walls 1025, the two ends of the moving module can easily pass through this space without interfering with the first segment 1021 or the second segment 1022.

[0039] Meanwhile, to ensure that the connection and support strength of the support wall 1025 still meet the requirements after the opening 1024 is made in the support wall 1025, the wall thickness of the support wall 1025 is intentionally designed to be greater than that of the first section 1021 and the second section 1022. The rationale for this design is that the opening 1024 will inevitably weaken the structural strength of the material. However, in the clearance column 102, the support wall 1025 is a key structure connecting the first section 1021 and the second section 1022, and also bears the important task of supporting the moving module. Therefore, it is essential to ensure that the support wall 1025 still has sufficient strength and rigidity after the opening 1024 is made to maintain the overall stability and reliability of the frame 1. Increasing the wall thickness of the support wall 1025 can effectively offset the strength reduction effect caused by the opening 1024. A thicker support wall 1025 means more material and a stronger structure, which helps the support wall 1025 maintain its integrity and stability when bearing the weight and force from the moving module. At the same time, the thickened support wall 1025 can also provide better resistance to deformation and fatigue, thereby extending the service life of the frame 1.

[0040] As an optional specific implementation, the frame 1 adopts a split structure design, which includes a first support frame 103 and a second support frame 104 stacked together. The first section 1021 of the clearance column 102 serves as a support structure for the first support frame 103, and similarly, the second section 1022 of the clearance column 102 serves as a support structure for the second support frame 104. The first section 1021 and the second section 1022 are connected by the clearance section 1023, thereby connecting the first support frame 103 and the second support frame 104. 04 is used to install the detection mechanism 2. The detection mechanism 2 includes a moving module for driving the detection end of the detection mechanism 2 to move. The moving module is installed corresponding to the opening 1024 so that the moving module can be installed to the edge position of the frame 1 through the opening 1024. Along the assembly direction of the first support frame 103 and the second support frame 104, the height of the clearance section 1023 is less than the height of the first support frame 103 and the height of the second support frame 104, that is, less than the height of the first section 1021 and the second section 1022.

[0041] In the above scheme, the first support frame 103 and the second support frame 104 are used to install the testing mechanisms 2. These testing mechanisms 2 can perform simultaneous inspection from both above and below, that is, to inspect the target product simultaneously from both above and below. Each testing mechanism 2 includes a moving module to drive the testing end of the testing mechanism 2 to move. Openings 1024 are provided on the clearance section 1023 to avoid interference between the two ends of the moving module, ensuring that the moving module will not interfere with other parts of the frame 1 during installation, thereby maximizing the effective stroke of the testing end of the testing mechanism 2.

[0042] Further, the moving module includes a Y-axis moving module 202; the second support frame 104 includes a base plate 1041, with a second section 1022 at each of the four corners of the base plate 1041; at least two of the clearance sections 1023 arranged along the Y-axis direction have openings 1024 on their opposing sides to avoid the ends of the Y-axis moving module 202. In this design, at least two clearance sections 1023 arranged along the Y-axis direction have openings 1024 on their opposing sides. These openings 1024 are used to avoid the ends of the Y-axis moving module 202, ensuring that the Y-axis moving module 202 will not interfere with other parts of the frame 1 during movement, thereby achieving the maximum effective stroke in the Y-axis direction. The height of the clearance section 1023 along the Z-axis direction (i.e., the vertical direction) is designed to be less than the height of the second section 1022 and the first section 1021. This design has two advantages: first, it avoids opening 1024 in the main load-bearing structure (second section 1022 and first section 1021), thus ensuring the overall stability of frame 1; second, even if opening 1024 is made in the clearance section 1023, its structural strength can still be guaranteed due to its short height, reducing the risk of deformation.

[0043] In summary, by creating an opening 1024 in the clearance section 1023, the opening 1024 is avoided in the main load-bearing structure. This ensures the stability of the frame 1 while maximizing the effective travel in the Y-axis direction, improving the equipment's inspection range and flexibility. Since the opening 1024 is located in the clearance section 1023, and the clearance section 1023 is relatively short, the structural strength is guaranteed even with the opening 1024, reducing the risk of deformation and improving the overall stability of the frame 1. This design avoids the traditional practice of enhancing stability by increasing the size of the column 101, meeting the requirements of refined equipment design and facilitating compact layout and lightweight design. Furthermore, the stable frame 1 structure and maximized effective Y-axis travel help improve the inspection accuracy and efficiency of the AOI inspection equipment, reduce missed and false detection rates, improve product quality and production efficiency, and accommodate the inspection of larger-sized products, enhancing the equipment's versatility and flexibility to meet diverse product needs.

[0044] It is worth noting that, in order to ensure that the center of gravity of the frame 1 is low, the base plate 1041 is made of 20mm thick steel, which increases the rigidity of the second support frame 104 and lowers the center of gravity of the whole machine.

[0045] As an optional specific implementation, the moving module includes an X-axis moving module 201, and the opening 1024 on the clearance section 1023 can be used to avoid the X-axis moving module 201, so that the detection end of the detection mechanism 2 can also have the maximum effective stroke in the X-axis direction.

[0046] Furthermore, both the second segment 1022 and the first segment 1021 are square tubular components, with the cross-sectional area of ​​the second segment 1022 being larger than that of the first segment 1021. The use of square tubular components in both segments provides excellent load-bearing capacity and structural stability. Considering that the second support frame 104 needs to support not only the detection mechanism 2 mounted on it but also the first support frame 103 and its detection structure—meaning the second support frame 104 needs to bear a heavier weight—the cross-sectional area of ​​the second segment 1022 is designed to be larger than that of the first segment 1021 to match its higher load-bearing requirements. This differentiated design not only ensures the stability of the second support frame 104 but also optimizes material utilization. While the first support frame 103 can meet the support requirements, the use of a smaller square tubular component in the first segment 1021 reduces costs.

[0047] Meanwhile, the cross-section of the first segment 1021 is smaller than that of the clearance segment 1023. Increasing the cross-section of the clearance segment 1023 improves its supporting strength. Because the clearance segment 1023 requires an opening 1024 to accommodate the moving module, this inevitably weakens its structural strength. However, increasing the cross-section of the clearance segment 1023 provides more material and stronger structural support, effectively compensating for the strength loss caused by the opening 1024. The increased cross-section of the clearance segment 1023 means more material and a larger contact area, which helps to distribute the weight and force from the moving module, improving the load-bearing capacity and stability of the clearance segment 1023. Simultaneously, a larger cross-section also provides better resistance to deformation and fatigue, ensuring that the clearance segment 1023 maintains its shape and functional integrity during long-term use.

[0048] Furthermore, although the second section 1022 and the first section 1021, as the main load-bearing components of the frame 1, also adopt a support structure formed by welding square tubular parts, their wall thickness is relatively smaller than that of the support wall 1025. This is because the main function of the column 101 is to provide vertical support force and meet the load-bearing requirements through a reasonable cross-sectional area design, while the clearance section 1023 requires more thickness to cope with the local stress concentration problem that may occur due to the opening 1024.

[0049] In a further optimized embodiment, the connection between the first segment 1021 and the clearance segment 1023 was carefully designed to enhance the overall stability and connection strength of the frame 1. Specifically, a first connecting plate is provided at the bottom of the first segment 1021, and a second connecting plate 1026 is provided on one side of the two opposing support walls 1025 opposite to the first segment 1021. These two connecting plates are designed and installed with precise alignment, and are then tightly connected together by a locking mechanism (such as bolts, welding or other fastening methods).

[0050] Using a connecting plate to connect the first section 1021 and the clearance section 1023 offers several advantages. First, the connecting plate increases the contact area, meaning that under the same external force, the stress per unit area is reduced, thereby improving the reliability and durability of the connection. Second, the larger contact area also provides a better reference for positioning, ensuring precise alignment during installation and avoiding structural instability caused by misalignment or deviation.

[0051] Furthermore, the use of connecting plates makes the connected structure more stable. Because the connecting plates themselves have a certain rigidity and strength, they can effectively disperse and resist various forces and torques from the detection mechanism 2 and the detection process. This dispersion effect reduces the load-bearing pressure on individual components and extends the service life of the frame 1.

[0052] During the in-depth optimization of the frame 1 structure, a special design was made for the support method of the Y-axis moving module 202 to ensure its stability and accuracy when performing detection tasks. Specifically, a first crossbeam 1042 was added between the two opposing second segments 1022 arranged along the Y-axis. This design significantly enhances the structural stability between the two second segments 1022. The first crossbeam 1042 not only serves as a connector but also effectively distributes the load from the Y-axis moving module 202 and its detection mechanism 2 through its own strength and rigidity, reducing the load-bearing pressure on the single column 101. More importantly, a first mounting plate 1043 is set on the first crossbeam 1042. The two ends of this mounting plate extend to the top of the two second segments 1022 and are tightly connected to them. This design allows the first mounting plate 1043 to be supported by the two second segments 1022 and the first crossbeam 1042, forming a stable support structure. This structure not only provides a stable and reliable mounting platform for the Y-axis moving module 202 but also ensures its smoothness and accuracy during movement. Moreover, the design of the first mounting plate 1043 fully considers the maximum effective travel requirement in the Y-axis direction. By extending both ends of it to the top of the two second segments 1022 and installing the clearance section 1023 in an appropriate position, the movable range of the Y-axis moving module 202 is effectively expanded, thereby meeting the needs of the testing equipment when testing products of different sizes.

[0053] In the process of further refining the design of frame 1, the structure between the first sections 1021 was also strengthened and optimized accordingly. Specifically, a second crossbeam 1031 was added between each pair of opposing first sections 1021 along the Y-axis. This design not only enhances the stability between the two first sections 1021, but also provides a stable mounting support structure for the feeding mechanism 205. The addition of the second crossbeam 1031 makes the connection between the first sections 1021 more robust, effectively resisting the influence of external loads and vibrations on frame 1. This enhanced stability ensures the smoothness and accuracy of the feeding mechanism 205 during operation, avoiding feeding errors caused by frame 1 shaking.

[0054] Meanwhile, the second crossbeam 1031 also serves as the mounting base for the feeding mechanism 205, providing it with necessary support and positioning. Through carefully designed mounting interfaces and fixing methods, the feeding mechanism 205 can be firmly installed on the second crossbeam 1031 and tightly integrated with the entire frame 1 system. In this way, the feeding mechanism 205 can complete its work more accurately and efficiently when performing tasks such as feeding and positioning.

[0055] Meanwhile, a third crossbeam 1032 is arranged parallel to the second crossbeam 1031. This design not only enhances the overall structural strength of the second support frame 104 but also provides greater flexibility and stability for subsequent installation. Crucially, a second mounting plate 1033 is positioned above the third crossbeam 1032, with both ends extending to the top of the first segment 1021 and tightly connected to them. This design ensures that the second mounting plate 1033 achieves its maximum installation length, thus providing a more spacious and stable installation space for the Y-axis moving module 202. Since both ends of the second mounting plate 1033 extend to the top of the first segment 1021, the Y-axis moving module 202 is no longer subject to interference or restriction from other structures when installed on the second mounting plate 1033. This design allows the Y-axis moving module 202 to move freely within its maximum stroke range without fear of collision or friction with other components. Therefore, the Y-axis moving module 202 on the second support frame 104 can naturally ensure that it has the maximum effective Y-axis stroke. This design improvement not only improves the detection efficiency and accuracy of the detection equipment, but also makes the entire frame 1 system more compact, efficient and reliable.

[0056] While pursuing structural stability and durability of the frame 1, it is also necessary to consider adverse factors such as vibration and impact that the equipment may encounter during operation. To mitigate the potential damage of these factors to the frame 1 structure, some embodiments specifically provide multiple buffers 105 on the side of the base plate 1041 opposite to the second section 1022. These buffers 105 are typically made of materials with good elasticity and shock absorption properties, such as rubber and spring steel. They are carefully arranged at corresponding positions on the base plate 1041, specifically at the four corners of the base plate 1041, to form elastic support for the entire frame 1. When the equipment vibrates or is subjected to external impact during operation, the buffers 105 can absorb and disperse this energy, reducing their direct impact on the frame 1 structure. By introducing the buffers 105, not only is an effective elastic buffer force provided for the entire frame 1, but the transmission path of vibration and impact can also be isolated to a certain extent. This design helps to extend the service life of the frame 1 and avoid structural fatigue and damage caused by long-term rigid contact.

[0057] Furthermore, the buffer 105 can also improve the stability and operational accuracy of the equipment to a certain extent. By reducing the impact of vibration and shock on the detection mechanism 2 and the Y-axis movement module 202, the buffer 105 helps maintain the smooth operation and precise positioning of these key components, thereby improving the overall performance and reliability of the detection equipment. Specifically, the buffer 105 can be cup-shaped, with one end fixedly connected to the base plate 1041 and the other end abutting against the platform or ground. The end in contact with the platform or ground has a relatively larger area, providing better support and buffering effect.

[0058] In some embodiments, reinforcing beams 106 are provided between the second segment 1022 and the first segment 1021, which are opposite each other along the X-axis. The reinforcing beams 106 make the first support frame 103 and the second support frame 104 have a cage-like structure. The cage-like structure, with its unique construction method, exhibits excellent performance in structural mechanics. By connecting multiple columns 101 and crossbeams (including reinforcing beams 106 in this case) to form a closed or nearly closed spatial frame, the cage-like structure can effectively distribute and resist loads and vibrations from all directions. This structural feature allows the frame 1 to maintain overall stability and non-deformation when subjected to external forces, thereby ensuring that the detection mechanism 2 and the Y-axis movement module 202 installed on it can operate accurately and stably.

[0059] As a crucial component of the cage structure, the reinforcing beam 106 primarily enhances the connection strength and rigidity between the columns 101. By being positioned between the second segment 1022 and the first segment 1021, the reinforcing beam 106 forms an additional support path, allowing the frame 1 to distribute forces over a wider area when subjected to external forces, thereby reducing localized stress and deformation. Furthermore, the reinforcing beam 106 increases the overall weight and moment of inertia of the frame 1, further improving its stability and seismic performance.

[0060] Based on this cage-like structure design, the overall structure of frame 1 is more compact, robust, and durable. The cage structure not only improves the static stiffness and dynamic stability of frame 1 but also reduces noise and wear caused by vibration and impact. Furthermore, this structure facilitates subsequent maintenance and upgrades, as all components are tightly connected, forming a unified system that is easy to manage and maintain.

[0061] It is worth mentioning that in the first support frame 103, the reinforcing beam 106 includes a first reinforcing beam 1061 and a second reinforcing beam 1062. The first reinforcing beam 1061 is located between the two first segments 1021, and the second reinforcing beam 1062 is located between the two second mounting plates 1033. The ends of the two second mounting plates 1033 facing away from the first reinforcing beam 1061 and the second reinforcing beam 1062 form an installation space. This installation space can be used to place the electrical control box assembly 204, or other components. Compared with the traditional solution of placing the electrical control box assembly 204 at the bottom of the entire device, this solution lowers the center of gravity of the entire device. Lowering the center of gravity can significantly improve the stability and anti-tipping ability of the device, especially in high-speed and high-precision testing processes, it can ensure that the device remains stable and reduce vibration and deviation.

[0062] On the other hand, an AOI inspection device is also provided, such as Figure 5 As shown, the system includes two inspection mechanisms 2 and a frame 1 as described above. The two inspection mechanisms 2 are movably mounted on the first support frame 103 and the second support frame 104, respectively, and the inspection ends of the two inspection mechanisms 2 are arranged opposite each other. In this scheme, the two inspection mechanisms 2 are arranged vertically opposite each other, and the workpiece to be inspected is located between the two inspection mechanisms 2. The two inspection mechanisms 2 can move freely relative to each other on the X and Y axes, thereby performing simultaneous vertical inspection of the workpiece to be inspected (specifically, a PCB board).

[0063] Specifically, the main body of the equipment consists of two independent but collaborative inspection mechanisms 2. These two inspection mechanisms 2 are carefully installed on the first support frame 103 and the second support frame 104 of the frame 1, forming a unique vertically opposed layout. In terms of frame 1 design, a cage structure combining multiple reinforcing beams 106, crossbeams, and columns 101 is adopted to ensure the rigidity and stability of the overall frame. As the core components of the equipment, the two inspection mechanisms 2 are each equipped with high-precision optical imaging components 203 and advanced image processing technology. They can accurately capture images of the upper and lower surfaces of the workpiece to be inspected (such as a PCB board) and perform real-time analysis and comparison. This design of simultaneous inspection of both upper and lower surfaces not only improves inspection efficiency but also ensures the comprehensiveness and accuracy of the inspection results.

[0064] During the inspection process, the two inspection mechanisms 2 can move freely along the X and Y axes, and some versions even support fine-tuning along the Z axis (vertical direction). This multi-axis movement capability allows the inspection mechanism 2 to flexibly cover the entire surface area of ​​the workpiece, ensuring detailed inspection of both edges and the center. Simultaneously, high-precision movement control ensures accurate contact between the inspection end and the surface of the workpiece, or maintains an appropriate inspection distance, further improving inspection accuracy.

[0065] In terms of the inspection process, the equipment first feeds the workpiece to be inspected into the inspection area via the feeding mechanism 205, where it is precisely positioned by the positioning device. Subsequently, the two inspection mechanisms 2 begin working synchronously to scan and inspect the upper and lower surfaces of the workpiece. After inspection, the equipment automatically determines whether the workpiece is qualified based on the image processing results and proceeds with the unloading process accordingly. Qualified products are sent to the next process or packaged; unqualified products are rejected or marked for subsequent processing.

[0066] Furthermore, the detection mechanism 2 includes a moving module and an optical imaging component 203. The moving module includes an X-axis moving module 201 and a Y-axis moving module 202. The Y-axis moving module 202 is mounted on the first support frame 103 and the second support frame 104, and the X-axis moving module 201 is movably mounted on the Y-axis moving module 202. The optical imaging component 203 is movably mounted on the X-axis moving module 201. As the basic support part of the detection mechanism 2, the Y-axis moving module 202 is stably mounted on the first support frame 103 and the second support frame 104. This design ensures the stable movement capability of the detection mechanism 2 in the Y-axis direction (i.e., one of the horizontal directions). Through a high-precision drive system and guide rails, the Y-axis moving module 202 can precisely control the back-and-forth movement of the X-axis moving module 201 on the horizontal plane to cover the entire width range of the workpiece to be detected.

[0067] To further enhance the flexibility of the inspection mechanism 2, the optical imaging component 203 is movably mounted on the X-axis movement module 201. This means that while the Y-axis movement module 202 drives the X-axis movement module 201 to move horizontally along the Y-axis, the X-axis movement module 201 can also independently control the precise movement of the optical imaging component 203 in the X-axis direction (i.e., the horizontal direction perpendicular to the Y-axis). This dual movement capability allows the optical imaging component 203 to flexibly adjust its inspection position to accurately align with various areas of the workpiece to be inspected, including edges and complex-shaped parts.

[0068] The optical imaging component 203, serving as the detection end of the inspection mechanism 2 and a core component, employs a high-precision optical sensor and image processing technology. It can capture image information of the workpiece in real time and perform rapid and accurate analysis and comparison. By continuously adjusting its position and focal length, the optical imaging component 203 ensures the clarity and accuracy of the image information, providing a reliable basis for subsequent defect detection and judgment.

[0069] Further, the Y-axis movement module 202 includes a Y-axis motor 2021, a Y-axis lead screw 2022, and a support end seat 2023. The drive end of the Y-axis motor 2021 is connected to one end of the Y-axis lead screw 2022, and the other end of the Y-axis lead screw 2022 is mounted on the support end seat 2023. The X-axis movement module 201 is movably mounted on the Y-axis lead screw 2022. At least a portion of the Y-axis motor 2021 is located within one of the receiving spaces, and the support end seat 2023 is located within the other opposite receiving space. The Y-axis motor 2021 serves as the power source for the Y-axis movement module 202. The Y-axis motor 2021 is carefully selected to provide sufficient driving force and precise speed control. Its drive end is directly connected to one end of the Y-axis lead screw 2022, driving the lead screw to rotate by transmitting torque. The Y-axis lead screw 2022 is a key transmission component in the Y-axis movement module 202. Its other end is mounted on the support end seat 2023. The Y-axis lead screw 2022 cooperates with the lead screw nut. When the Y-axis lead screw 2022 rotates, the lead screw nut moves along the axis of the Y-axis lead screw 2022, thereby driving the X-axis movement module 201 mounted on it to move in the Y-axis direction. The support end seat 2023, as the fixing point of the other end of the Y-axis lead screw 2022, not only provides stable support for the Y-axis lead screw 2022, but also ensures the coaxiality and straightness of the Y-axis lead screw 2022 during rotation. Its design fully considers mechanical strength and rigidity requirements to withstand the forces and torques transmitted by the Y-axis lead screw 2022.

[0070] To optimize the installation and performance of the Y-axis moving module 202, openings 1024 are formed in the clearance section 1023. These openings 1024 are located at both ends of the Y-axis moving module 202 to accommodate the Y-axis motor 2021 and the support end seat 2023. This layout achieves the following optimizations:

[0071] Maximizing the length of the Y-axis lead screw 2022: The setting of the opening 1024 avoids the limitation of the Y-axis motor 2021 and the support end seat 2023 on the length of the Y-axis lead screw 2022, allowing the lead screw to extend as far as possible, thereby increasing the effective stroke of the optical imaging component 203 in the Y-axis direction, which is especially important for inspecting large-sized or wide-width workpieces.

[0072] Improved space utilization: The ingenious design of the 1024 opening makes the installation of the Y-axis moving module 202 more compact, reducing unnecessary space occupation. This not only helps to reduce the size and weight of the entire detection equipment, but also helps to improve the stability and reliability of the equipment.

[0073] Simplified installation and maintenance: Since the Y-axis motor 2021 and the support end plate 2023 are located within the housing space, their installation and disassembly become more convenient and quick. At the same time, this layout also facilitates the maintenance and repair of the Y-axis movement module 202.

[0074] Furthermore, the X-axis moving module 201 includes an X-axis crossbeam, on which the optical imaging component 203 is slidably mounted, and multiple reinforcing members are provided inside the X-axis crossbeam. Since AOI inspection equipment is a precision optical inspection device with high imaging accuracy, and the oscillation of the optical imaging component 203 at its end needs to be minimized, the overall system rigidity needs to be sufficiently high. Otherwise, severe tailing will occur during high-speed movement and image capture at the end, placing high demands on the rigidity of the upper and lower X-axis crossbeams, especially as the inspection speed requirements of the equipment increase. Therefore, a high-rigidity X-axis moving module 201 is essential. Thus, by increasing the length and width cross-sectional dimensions of the X-axis crossbeam and appropriately setting reinforcing members, the bending and torsional rigidity of the X-axis moving module 201 can be maximized, preventing tailing of the optical imaging module during high-speed movement and ensuring image clarity.

[0075] It should be noted that the X-axis movement module 201 also includes structural components such as an X-axis motor, an X-axis lead screw, and an X-axis guide rail, which are structurally similar to the Y-axis movement module 202. It is necessary to ensure that the optical imaging assembly 203 moves stably and accurately along the X-axis beam. Furthermore, the number of openings 1024 on the four or two clearance sections 1023 depends on whether the Y-axis movement module 202 is driven by a single motor or a dual motor; that is, the number of openings 1024 can be adaptively adjusted based on the driving method of the Y-axis movement module 202.

[0076] In addition, a Z-axis movement module is included, which is movably mounted on the X-axis movement module 201, and the optical imaging component 203 is movably mounted on the Z-axis movement module. The movable mounting of the optical imaging component 203 on the Z-axis movement module provides it with vertical freedom. By precisely controlling the movement distance and speed of the Z-axis movement module, it is possible to ensure that the optical imaging component 203 maintains an appropriate distance and angle with the surface of the workpiece under inspection, thereby achieving optimal imaging results. The addition of the Z-axis movement module enables the AOI inspection equipment to move precisely in three-dimensional space, a feature particularly important for inspecting workpieces with complex shapes and varying heights. By adjusting the height of the Z-axis, the equipment can automatically adapt to inspection areas of different heights, ensuring that the imaging component can always accurately capture image information of the workpiece. The presence of the Z-axis movement module not only improves inspection accuracy but also enhances the flexibility of the equipment. It allows operators to adjust the position and angle of the imaging component according to actual needs to adapt to different inspection tasks and workpiece characteristics. This highly customizable inspection capability makes AOI inspection equipment have broader application prospects in the field of industrial automation.

[0077] The system also includes a feeding mechanism 205, which is mounted on the second support frame 104 and used to transport the workpiece to be inspected to a preset position. The feeding mechanism 205 is designed with automation, stability, and compatibility in mind. It employs advanced conveying and sensor control technologies to accurately and quickly identify and grasp the workpiece, then smoothly transport it to the inspection area. During transport, the feeding mechanism 205 ensures the stability and positional accuracy of the workpiece, preventing collisions, tilting, or shifting, thus guaranteeing the smooth progress of subsequent inspections.

[0078] Furthermore, the feeding mechanism 205 boasts high compatibility, capable of accommodating parts of different shapes, sizes, and weights. By adjusting parameters such as conveying speed and force, the feeding mechanism 205 can flexibly adapt to various testing needs, improving the overall adaptability and flexibility of the equipment.

[0079] It is worth mentioning that the AOI inspection equipment also includes an electrical control box assembly 204, which is installed on the first support frame 103 or the second support frame 104. That is, the electrical control box assembly 204 can be selectively connected to the first support frame 103 or the second support frame 104 according to actual needs, and the electrical control box assembly 204 is located on the rear side of the frame 1. In addition, various motor drivers, switching power supplies and other related electrical materials are installed inside the electrical control box assembly 204.

[0080] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0081] In the description of this specification, references to terms such as "an embodiment," "example," 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 this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0083] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A frame (1), characterized in that, It includes several columns (101), at least one of the columns (101) is a clearance column (102), the clearance column (102) is provided with a clearance section (1023), and the clearance section (1023) is provided with an opening (1024) on at least one side, so that the clearance section (1023) has a receiving space for module installation.

2. The frame (1) according to claim 1, characterized in that, It also includes a first mounting plate (1043), which has a module mounting position and at least one end extends into the accommodating space to form a module mounting area with the accommodating space.

3. The frame (1) according to claim 2, characterized in that, The clearance column (102) further includes a first section (1021) and a second section (1022). The clearance section (1023) is located between the first section (1021) and the second section (1022). The clearance section (1023) is provided with at least two opposing support walls (1025). The opening (1024) is located between the two support walls (1025). The first section (1021) and the second section (1022) are connected by the two support walls (1025).

4. The frame (1) according to claim 3, characterized in that, The height of the shelter section (1023) is less than the height of the first section (1021) and the height of the second section (1022).

5. The frame (1) according to claim 3, characterized in that, The thickness of the support wall (1025) is greater than the thickness of the first section (1021) and greater than the thickness of the second section (1022).

6. The frame (1) according to claim 3, characterized in that, The bottom of the first segment (1021) is provided with a first connecting plate, and the two support walls (1025) are provided with a second connecting plate (1026) on one side opposite to the first segment (1021). The first connecting plate and the second connecting plate (1026) are aligned and locked. The cross-section of the first segment (1021) is smaller than the cross-section of the clearance segment (1023).

7. The frame (1) according to claim 3, characterized in that, A first crossbeam (1042) is provided between two opposing second segments (1022) arranged along the Y-axis. The first crossbeam (1042) is located below the first mounting plate (1043). The two ends of the first mounting plate (1043) extend to the top of the two second segments (1022). Two support walls (1025) are provided on the first mounting plate (1043). A second crossbeam (1031) is provided between two opposing first segments (1021) arranged along the Y-axis. The second crossbeam (1031) is used to install the feeding mechanism (205). A third crossbeam (1032) is arranged parallel above the second crossbeam (1031). A second mounting plate (1033) is arranged above the third crossbeam (1032). The two ends of the second mounting plate (1033) extend to the top of the first segment (1021).

8. The frame (1) according to claim 7, characterized in that, A first reinforcing beam (1061) is provided between the two first segments (1021), and a second reinforcing beam (1062) is provided between the two second mounting plates (1033). The ends of the two second mounting plates (1033) facing away from the first reinforcing beam (1061) form an installation space with the second reinforcing beam (1062).

9. An AOI inspection device, characterized in that, Includes the frame (1) as described in any one of claims 1-8, the module being a movable module, the movable module including a lead screw and a motor, the drive end of the motor being connected to the lead screw, and the motor being at least partially located within the receiving space.

10. The AOI inspection equipment according to claim 9, characterized in that, The mobile module is located between the two clearance columns (102), and one end of the motor and the lead screw are respectively set in the accommodating space of the two clearance columns (102).

11. The AOI inspection equipment according to claim 9, characterized in that, It also includes two detection mechanisms (2), which are respectively installed on the frame (1) and the detection ends of the two detection mechanisms (2) are arranged opposite to each other. The detection end of each detection mechanism (2) can move relative to the frame (1) in the X-axis direction and the Y-axis direction, respectively. The detection end of one of the detection mechanisms (2) can move along the Y-axis direction through the moving module.

Images