Modular positioning mechanism and visual inspection equipment

Abstract

This application provides a modular positioning mechanism and a visual inspection device, including a support module and a positioning module. The positioning module is mounted on the support module and includes a mounting plate and multiple positioning parts. The multiple positioning parts are mounted on the mounting plate and enclose a positioning space. Each positioning part includes a positioning element, a driving element, and an elastic element. The driving element is connected to the positioning element to drive the positioning element to move outward toward the positioning space. The elastic element is connected to both the support module and the positioning element to drive the positioning element to move inward toward the positioning space. By integrating the mounting plate and multiple positioning parts to form the positioning module, and integrating the positioning module onto the support module, the positioning mechanism has an integrated structure, significantly simplifying the assembly process and improving maintenance convenience. Through the coordinated operation of the driving element and the elastic element, the opening of the positioning element to the outside of the positioning space and the clamping action to the inside can be flexibly realized, facilitating the rapid placement of the object to be positioned and ensuring stability during positioning.

Description

Technical Field

[0001] This application belongs to the field of workpiece inspection technology, specifically relating to a modular positioning mechanism and a vision inspection device. Background Technology

[0002] In the field of high-precision visual inspection, such as 3C electronics and automotive parts, the application of visual inspection equipment is becoming more and more widespread, especially in the inspection scenarios of 3C devices such as mobile phones, which puts forward more stringent requirements on the positioning mechanism used for such devices.

[0003] In existing technologies, electric clamping mechanisms are mostly used for material positioning. However, the overall structure of electric clamping mechanisms is complex, and the components are relatively scattered. This not only causes inconvenience in assembly and maintenance, but also makes it difficult to meet the requirements of modularity and high compatibility. Utility Model Content

[0004] Therefore, the technical problem to be solved by this application is to provide a modular positioning mechanism and a visual inspection device, which can simplify the structure and improve the convenience and compatibility of assembly and maintenance through modular design.

[0005] To address the aforementioned problems, a first aspect of this application provides a modular positioning mechanism, comprising a support module and a positioning module. The positioning module is disposed on the support module and includes a mounting plate and multiple positioning parts. The multiple positioning parts are disposed on the mounting plate and enclose a positioning space. Each positioning part includes a positioning element, a driving element, and an elastic element. The driving element is connected to the positioning element to drive the positioning element to move outward toward the positioning space. The elastic element is connected to both the support module and the positioning element to drive the positioning element to move inward toward the positioning space.

[0006] Optionally, the mounting plate is provided with multiple slide rails, and the positioning members are slidably mounted on the slide rails one by one. The driving member is connected to the positioning member and the mounting plate respectively, so as to drive the positioning member to slide on the slide rail toward the outside of the positioning space. One end of the elastic member is connected to the bearing module and the other end is connected to the positioning member, so as to drive the positioning member to move toward the inside of the positioning space.

[0007] Optionally, the positioning component includes a sliding base plate, which is slidably mounted on the slide rail. A push block is provided at the bottom of the sliding base plate. One end of the driving component is fixed to the mounting plate, and the other end extends toward the push block and can abut against the push block to push the sliding base plate to slide toward the outside of the positioning space. A positioning unit and a spring block are provided at the top of the sliding base plate, and the elastic element is connected to the spring block.

[0008] Optionally, the positioning unit includes a positioning cylinder and a positioning eccentric column. The positioning cylinder and the positioning eccentric column are vertically arranged and arranged along a sliding direction perpendicular to the sliding base plate. The positioning eccentric column includes a shaft and a column. The shaft is vertically arranged on the top surface of the sliding base plate, and the column is eccentrically sleeved on the shaft and can rotate eccentrically about the shaft as the rotation center.

[0009] Optionally, the positioning cylinder and the positioning eccentric column are made of soft material, or an elastic layer is provided on the outer peripheral wall of the positioning cylinder and the positioning eccentric column.

[0010] Optionally, the bearing module includes a positioning plate and a support plate. The support plate and the positioning module are disposed on the positioning plate. The positioning plate is provided with a clearance groove. The positioning module is connected to the bottom of the positioning plate. The positioning cylinder, the positioning eccentric column and the spring block extend to the top of the positioning plate through the clearance groove. The support plate is disposed in the positioning space for placing the object to be positioned.

[0011] Optionally, the number of positioning parts is four, and the four positioning parts are arranged circumferentially around the positioning space. Two adjacent positioning parts form a first positioning group, and another two adjacent positioning parts form a second positioning group. During positioning, the positioning cylinder and the positioning eccentric column of the first positioning group abut against the groove of the clearance groove and the object to be positioned. The positioning cylinder and the positioning eccentric column of the first positioning group abut against the object to be positioned only. The positioning modules of the first positioning group each include at least two elastic elements, and the positioning modules of the second positioning group each include only one elastic element.

[0012] Optionally, the positioning plate is provided with a plurality of positioning modules, and the support plate is provided in a one-to-one correspondence with the positioning modules.

[0013] Optionally, the bottom of the bearing module is provided with a pneumatic connector, the driving component is a cylinder, and the pneumatic connector is connected to the driving component.

[0014] A second aspect of this application provides a visual inspection device, including the modular positioning mechanism described above.

[0015] The modular positioning mechanism and visual inspection device provided in the embodiments of this utility model integrate a mounting plate with multiple positioning parts to form a positioning module, and integrate the positioning module on a supporting module. This gives the positioning mechanism an integrated structure, greatly simplifying the assembly process. Subsequent maintenance allows for targeted operation of the module without overall disassembly, improving maintenance convenience. Simultaneously, through the coordinated cooperation of the driving component and the elastic component, the positioning component can flexibly open to the outside of the positioning space and clamp inwards. This facilitates the rapid placement of the object to be positioned while ensuring stability during positioning through the force of the elastic component, thus meeting positioning requirements. Attached Figure Description

[0016] Figure 1 This is a top-view structural diagram of the modular positioning mechanism according to an embodiment of this application; Figure 2 This is a first-view perspective three-dimensional structural diagram of the positioning module according to an embodiment of this application. Figure 3 This is a two-dimensional structural diagram of the positioning module in an embodiment of this application from a second perspective. Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0017] The reference numerals in the attached figures are as follows: 1. Positioning plate; 11. Leaving groove; 2. Support plate; 3. Pneumatic connector; 4. Mounting plate; 6. Positioning component; 61. Sliding base plate; 62. Push block; 63. Positioning unit; 631. Positioning cylinder; 632. Positioning eccentric column; 64. Spring pull block; 7. Driving component; 8. Elastic component; 9. Slide rail; 601. First positioning group; 602. Second positioning group. Detailed Implementation

[0018] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0022] See also Figures 1 to 4 As shown, according to a first aspect of the embodiments of this application, a modular positioning mechanism is provided, including a support module and a positioning module. The positioning module is disposed on the support module and includes a mounting plate 4 and a plurality of positioning parts. The plurality of positioning parts are disposed on the mounting plate 4 and form a positioning space. The positioning parts include a positioning member 6, a driving member 7 and an elastic member 8. The driving member 7 is connected to the positioning member 6 to drive the positioning member 6 to move toward the outside of the positioning space. The elastic member 8 is connected to the support module and the positioning member 6 respectively to drive the positioning member 6 to move toward the inside of the positioning space.

[0023] By integrating the mounting plate 4 with multiple positioning parts to form a positioning module, and then integrating the positioning module onto the carrier module, the positioning mechanism achieves an integrated structure, significantly simplifying the assembly process. Subsequent maintenance allows for targeted operation of the module without overall disassembly, improving maintenance convenience. Simultaneously, the coordinated action of the driving component 7 and the elastic component 8 enables flexible opening of the positioning component 6 to the outside of the positioning space and clamping action to the inside. This facilitates the rapid placement of the object to be positioned while ensuring stability during positioning through the force of the elastic component 8, thus meeting positioning requirements.

[0024] The support module is used to support the positioning module and the object to be positioned, providing a stable installation benchmark for the positioning module, ensuring the stability of the overall structure during the positioning process, and avoiding positioning deviation due to unstable support.

[0025] Multiple positioning parts are arranged in a ring to form a positioning space for accommodating the object to be positioned. The object is placed in the positioning space to achieve positioning.

[0026] Specifically, there can be four positioning parts, which are arranged in a rectangle. The four positioning parts form the four corners of the rectangle, thus collectively enclosing a rectangular positioning space.

[0027] Among them, the positioning component 6 is in direct contact with the object to be positioned, and achieves clamping or loosening of the object to be positioned through its own movement, which is the execution end of the positioning action.

[0028] Among them, the driving component 7 is connected to the positioning component 6. The driving component 7 has a power output function. The function of the driving component 7 is to drive the positioning component 6 to move towards the outside of the positioning space, thereby expanding the positioning space and providing operating space for the placement or removal of the object to be positioned.

[0029] Among them, the two ends of the elastic element 8 are connected to the bearing module and the positioning element 6 respectively. The elastic element 8 has its own elastic reset capability. When the driving element 7 stops power output, it can drive the positioning element 6 to move towards the inside of the positioning space through its own elastic tension, thereby realizing the clamping and positioning of the object to be positioned.

[0030] Specifically, when an object needs to be positioned, the drive unit 7 starts and outputs power. Since the drive unit 7 is directly connected to the positioning unit 6, the power is transmitted to the positioning unit 6, causing it to overcome the elastic force of the elastic member 8 and move outwards from the positioning space. As the positioning members 6 of multiple positioning units move outwards, the volume of the positioning space expands until the space is large enough to accommodate the object to be positioned. At this point, the object to be positioned is placed in the preset position within the positioning space. After the object to be positioned is in place, the drive unit 7 stops outputting power. Since one end of the elastic member 8 is connected to the bearing module and the other end is connected to the positioning member 6, the elastic member 8 pulls the positioning member 6 towards the inwards from the positioning space through its own contraction. All positioning members 6 are in close contact with the object to be positioned, forming a stable clamping force, fixing the object to be positioned in the preset reference position of the positioning space, completing the positioning process. After the positioning operation is completed, the drive unit 7 starts again and outputs power, causing the positioning members 6 to move outwards from the positioning space again. The positioning space expands, releasing the clamping constraint on the object to be positioned. At this point, the object to be positioned can be removed from the positioning space, and the mechanism returns to the initial placement state, waiting for the next positioning cycle.

[0031] The operation of picking up and placing the object to be positioned can be completed by a handling device with suction cups, ensuring the accuracy of picking up and placing the object. When the object to be positioned is vacuum-adsorbed during handover with downstream equipment, all four cylinders open simultaneously, preventing the product from being forcibly removed and thus avoiding scratches, bumps, and crushing.

[0032] The mounting plate 4 is provided with multiple slide rails 9, and the positioning parts 6 are slidably mounted on the slide rails 9 in a corresponding manner. The driving parts 7 are connected to the positioning parts 6 and the mounting plate 4 respectively, so as to drive the positioning parts 6 to slide on the slide rails 9 toward the outside of the positioning space. One end of the elastic part 8 is connected to the bearing module, and the other end is connected to the positioning part 6, so as to drive the positioning part 6 to move toward the inside of the positioning space.

[0033] By setting multiple slide rails 9 on the mounting plate 4, the slide rails 9 slide in a one-to-one correspondence with the positioning element 6, providing precise guidance for the movement of the positioning element 6, effectively preventing the positioning element 6 from deviating during movement, and ensuring the smoothness and stability of the positioning action. By connecting the driving element 7 to both the positioning element 6 and the mounting plate 4, and connecting one end of the elastic element 8 to the bearing module and the other end to the positioning element 6, a good force transmission path is ensured. This not only improves the positioning accuracy but also reduces frictional loss between the positioning element 6 and the slide rails 9, extending the overall service life of the mechanism.

[0034] The mounting plate 4 is horizontally positioned, and the slide rail 9 extends in a straight line, resting on the top surface of the mounting plate 4. The driving component 7 can be positioned at the bottom of the mounting plate 4. The elastic component 8 can be positioned above the mounting plate 4 and the supporting module.

[0035] Among them, the elastic element 8 is a spring, one end of which is hung on the bearing module, and the other end is hung on the positioning element 6 and the bearing module.

[0036] The number of positioning components 6 and slide rails 9 can both be four. The slide rails 9 are arranged in a cross shape, with adjacent slide rails 9 perpendicular to each other, so that the positioning components 6 can move in or out of the positioning space in four vertical directions.

[0037] The positioning component 6 includes a sliding base plate 61, which is slidably mounted on the slide rail 9. A push block 62 is provided at the bottom of the sliding base plate 61. One end of the driving component 7 is fixed to the mounting plate 4, and the other end extends toward the push block 62 and can abut against the push block 62 to push the sliding base plate 61 to slide toward the outside of the positioning space. A positioning unit 63 and a spring pull block 64 are provided at the top of the sliding base plate 61. An elastic component 8 is connected to the spring pull block 64.

[0038] By sliding the base plate 61 against the slide rail 9, the overall stability of the moving base is ensured. The abutting engagement between the push block 62 and the drive component 7 efficiently transmits the force of the drive component 7 to the sliding base plate 61, causing it to slide stably towards the outside of the positioning space, avoiding power transmission loss. The positioning unit 63, which abuts against the object to be positioned, clamps and fixes it. The positioning unit 63 acts directly on the object, ensuring precise contact. The spring pull block 64 provides a reliable connection point for the elastic component 8, allowing the tension of the elastic component 8 on the positioning component 6 to act on the sliding base plate 61, ensuring stable clamping force when the positioning component 6 is clamped towards the inside of the positioning space. The overall structure is compact, and the components work together seamlessly, improving the reliability and accuracy of the positioning action.

[0039] The driving component 7 is a drive component that can extend and retract. The fixed end of the driving component 7 is fixed to the mounting plate 4, and the telescopic end of the driving component 7 extends toward the push block 62 and can abut against the push block 62, thereby pushing the sliding base plate 61 to slide toward the outside of the positioning space. After moving to the limit position and placing the object to be positioned, the telescopic end of the driving component 7 retracts, so that the positioning unit 63 abuts against the object to be positioned. The telescopic end of the driving component 7 continues to retract, thereby separating from the push block 62, so that the positioning unit 63 clamps and positions the object to be positioned by the elastic force of the elastic member 8.

[0040] The positioning unit 63 extends vertically and its sidewall abuts against the object to be positioned.

[0041] The positioning unit 63 includes a positioning cylinder 631 and a positioning eccentric column 632. The positioning cylinder 631 and the positioning eccentric column 632 are vertically arranged and arranged along the sliding direction perpendicular to the sliding base plate 61. The positioning eccentric column 632 includes a shaft and a column. The shaft is vertically arranged on the top surface of the sliding base plate 61, and the column is eccentrically sleeved on the shaft and can rotate eccentrically about the shaft as the rotation center.

[0042] By setting a positioning cylinder 631 and a positioning eccentric column 632, and arranging the positioning cylinder 631 and the positioning eccentric column 632 along the sliding direction perpendicular to the sliding base plate 61, the positioning support of the object to be positioned can be provided from different positions, enhancing the positioning stability. The positioning eccentric column 632 includes a shaft and an eccentrically fitted column, which can rotate eccentrically around the shaft. This flexibly eliminates dimensional errors in components such as the mounting plate 4 and the slide rail 9 during the mechanism's machining process, as well as fitting errors between components during assembly. This ensures that during the positioning process, both the positioning cylinder 631 and the positioning eccentric column 632 can tightly fit the surface of the object to be positioned, avoiding positioning loosening or offset due to errors, significantly improving positioning accuracy, and is especially suitable for scenarios with high positioning accuracy requirements.

[0043] The object to be positioned is roughly a cuboid structure, and there are four positioning units 63, each corresponding to one of the four sides of the cuboid structure. The positioning cylinder 631 and the positioning eccentric cylinder 632 in the same positioning unit 63 are set roughly parallel to the sides of the corresponding cuboid structure.

[0044] The distance between the positioning cylinder 631 and the positioning eccentric cylinder 632 is less than the length of the side of the corresponding object to be positioned.

[0045] In one embodiment, the positioning cylinder 631 and the positioning eccentric pillar 632 are made of a soft material. In another embodiment, an elastic layer is provided on the outer peripheral wall of the positioning cylinder 631 and the positioning eccentric pillar 632.

[0046] By using soft materials to make the positioning cylinder 631 and the positioning eccentric column 632, or by providing an elastic layer on their outer peripheral walls, the impact force when the positioning component 6 comes into contact with the object to be positioned can be effectively buffered, avoiding scratches, dents, or pressure marks on the surface of the object. This is particularly suitable for positioning objects with easily damaged surfaces, such as 3C electronic components and automotive parts. Simultaneously, the soft material or elastic layer can increase the friction between the positioning component 6 and the object to be positioned, further improving the stability during positioning and preventing the object from sliding during the positioning process. While ensuring the positioning effect, this maximizes the protection of the appearance and performance of the object to be positioned.

[0047] In high-precision visual inspection fields such as 3C electronics and automotive parts, the positioning process needs to address the three types of damage: scratches, bumps, and pressure marks. The elastic layer can be made of silicone tubes, polyurethane tubes, etc., that is, silicone tubes, polyurethane tubes, etc. are fitted onto the positioning cylinder 631 and the positioning eccentric column 632 to form an elastic layer.

[0048] The positioning posts are made of non-metallic soft material to avoid three types of damage.

[0049] The bearing module includes a positioning plate 1 and a support plate 2. The support plate 2 and the positioning module are set on the positioning plate 1. The positioning plate 1 is provided with a clearance groove 11. The positioning module is connected to the bottom of the positioning plate 1. The positioning cylinder 631, the positioning eccentric column 632 and the spring pull block 64 extend to the top of the positioning plate 1 through the clearance groove 11. The support plate 2 is set in the positioning space and is used to place the object to be positioned.

[0050] By providing a clearance groove 11 on the positioning plate 1, reasonable installation and extension space is provided for the positioning cylinder 631, the positioning eccentric column 632, and the spring pull block 64 of the positioning module. This allows the positioning module to be installed at the bottom of the positioning plate 1, making full use of space, making the overall structure more compact, and avoiding direct interference between the positioning module and the object to be positioned. The support plate 2 is set in the positioning space, providing a stable support platform for the object to be positioned, ensuring that the object remains horizontal during the positioning process and avoiding the impact of unstable placement on positioning accuracy. At the same time, the support plate 2 also reduces direct contact between the object to be positioned and the positioning plate 1, further protecting the surface of the object from damage.

[0051] The positioning plate 1 is manufactured through machining, ensuring the machining accuracy of the clearance groove 11 in the positioning plate 1, thereby improving the positioning accuracy of the modular positioning mechanism. Ensuring the positioning plate 1 has high machining accuracy allows for the arrangement of multiple workstations on the positioning plate 1.

[0052] Among them, the positioning plate 1 serves as a basic load-bearing component, providing an installation platform for the support plate 2 and the positioning module. Furthermore, by opening a clearance groove 11, the clearance groove 11 vertically penetrates the positioning plate 1, thereby providing a spatial channel for the extension of the positioning component.

[0053] The positioning plate 1 and the support plate 2 are stacked horizontally, with the support plate 2 positioned above the positioning plate 1. The positioning cylinder 631, the positioning eccentric column 632, and the spring pull block 64 pass vertically upward through the clearance groove 11.

[0054] There are four positioning parts, which are arranged circumferentially around the positioning space. Two adjacent positioning parts form a first positioning group 601, and two other adjacent positioning parts form a second positioning group 602. During positioning, the positioning cylinder 631 and the positioning eccentric column 632 of the first positioning group 601 abut against the groove of the clearance groove 11 and the object to be positioned. The positioning cylinder 631 and the positioning eccentric column 632 of the first positioning group 601 abut against the object to be positioned. The positioning modules of the first positioning group 601 each include at least two elastic elements 8, and the positioning modules of the second positioning group 602 each include only one elastic element 8.

[0055] By dividing the four positioning parts into a first positioning group 601 and a second positioning group 602, and with different contact states and numbers of elastic elements 8 during positioning, the positioning cylinder 631 and the positioning eccentric column 632 of the first positioning group 601 simultaneously abut against the groove opening of the clearance groove 11 and the object to be positioned. Combined with the strong pulling force of at least two elastic elements 8, the object to be positioned can be accurately positioned at the reference position, ensuring the stability of the positioning reference. The positioning cylinder 631 and the positioning eccentric column 632 of the second positioning group 602 only abut against the object to be positioned, and the pulling force is provided by only one elastic element 8. This not only assists in clamping the object to be positioned but also prevents the object from shifting from the reference position due to excessive pulling force.

[0056] The object to be positioned is a cuboid structure. Four positioning parts are arranged around the object and each corresponds to one side of the object.

[0057] In the first positioning group 601, each of the two positioning modules includes two elastic elements 8, which are arranged in parallel. The second positioning group 602 has two positioning modules, each including only one elastic element 8.

[0058] During positioning, the positioning cylinders 631 and eccentric pillars 632 of the two positioning modules of the first positioning group 601 must abut against both the opening of the clearance groove 11 and the object to be positioned. The positioning cylinders 631 and eccentric pillars 632 of the two positioning parts of the second positioning group 602 abut against the object to be positioned only and do not contact the opening of the clearance groove 11.

[0059] The groove edge of the relief groove 11 corresponding to the first positioning group 601 can be called the dead edge. The groove edge of the relief groove 11 corresponding to the second positioning group 602 can be called the live edge.

[0060] When the driving member 7 extends, it pushes the push block 62 on the positioning member 6, causing the positioning member 6 to move outward along the slide rail 9. At this time, the positioning cylinders 631 and eccentric pillars 632 of the first positioning group 601 and the second positioning group 602 are all away from the positioning space, expanding the positioning space and placing the object to be positioned on the support plate 2. Subsequently, the driving member 7 shortens, and with the pulling force of the elastic member 8, it drives the positioning member 6 to slide inward into the positioning space. In one embodiment, since the first positioning group 601 is equipped with at least two elastic members 8, the pulling force is greater than that of the second positioning group 602, which is equipped with only one elastic member 8, so the positioning member 6 of the first positioning group 601 moves into place first. In another embodiment, the driving member 7 of the first positioning group 601 retracts first, and the driving member 7 of the second positioning group 602 retracts later, so the positioning member 6 of the first positioning group 601 moves into place first. The positioning cylinder 631 and positioning eccentric column 632 of the first positioning group 601 first abut against the groove of the relief groove 11 of the positioning plate 1, that is, first abut against the dead edge of the positioning plate 1, and at the same time contact the surface of the object to be positioned. With the limiting effect of the groove, the object to be positioned is initially fixed in the reference position, forming a stable positioning reference. Next, the positioning cylinder 631 and positioning eccentric column 632 of the positioning element 6 of the second positioning group 602 make close contact with the surface of the object to be positioned, completing the auxiliary clamping. Because the pulling force of the first positioning group 601 is greater than that of the second positioning group 602, the positioning element 6 of the second positioning group 602 will not push the object to be positioned away from the reference position established by the first positioning group 601, but will only tightly fit the object to be positioned, avoiding the object to be positioned from loosening. The driving element 7 is completely retracted and no longer contacts the push block 62. The clamping of the object to be positioned is maintained entirely by the pulling force of the elastic element 8 of the first positioning group 601 and the second positioning group 602, which ensures the positioning accuracy and prevents over-clamping and damage to the object to be positioned. When it is necessary to remove the object to be positioned, the drive component 7 extends again, driving the corresponding positioning parts to move outward, expanding the positioning space, so that the object to be positioned can be removed from the support plate 2.

[0061] The positioning plate 1 is equipped with multiple positioning modules, and the support plate 2 is set with a one-to-one correspondence between the positioning modules.

[0062] By setting multiple positioning modules on the positioning plate 1 and setting the support plate 2 in a one-to-one correspondence with the positioning modules, the positioning mechanism can simultaneously achieve the synchronous positioning of multiple objects to be positioned, which greatly improves the positioning efficiency and is especially suitable for multi-station production or testing scenarios.

[0063] The multiple positioning modules can be flexibly arranged according to the size and quantity of the objects to be positioned, which reduces the overall cost of the equipment. Each positioning module works independently without interfering with the others. Even if one module malfunctions, it will not affect the normal operation of the other modules, thus improving the overall fault tolerance and practicality of the mechanism.

[0064] Specifically, such as Figure 1 As shown, four positioning modules are provided on the positioning plate 1. The four positioning modules are arranged sequentially along the length of the positioning plate 1. Four support plates 2 are provided in a one-to-one correspondence with the four positioning modules.

[0065] The bottom of the load-bearing module is equipped with a pneumatic connector 3, and the driving component 7 is a cylinder. The pneumatic connector 3 is connected to the driving component 7.

[0066] By setting a pneumatic connector 3 at the bottom of the load-bearing module and setting the drive component 7 as a cylinder, and connecting the pneumatic connector 3 with the drive component 7, the pneumatic drive method is used to replace the traditional electric drive. This not only reduces the overall cost of the mechanism, but also reduces the complex wiring connections of the electric components, making the mechanism structure simpler.

[0067] One method involves adding a speed control valve to the cylinder to adjust the cylinder retraction speed, thereby achieving shock-free clamping.

[0068] Among them, the driving component 7 is a single-acting extension type. When air is supplied, the solenoid valve is activated, the cylinder extends and pushes the push block 62 on the positioning component 6, causing the positioning component 6 to move along the slide rail 9 to the outside of the positioning space.

[0069] A second aspect of this application provides a visual inspection device, including the modular positioning mechanism described above.

[0070] By integrating any of the above-mentioned modular positioning mechanisms, the precise positioning function of the positioning mechanism can ensure that the object to be inspected maintains a stable and accurate position during the inspection process, providing a clear and consistent inspection image for the visual inspection system, avoiding inspection errors caused by positioning deviations of the object to be inspected, and improving inspection accuracy.

[0071] The modular design and high compatibility of the positioning mechanism allow visual inspection equipment to flexibly replace or adjust the positioning module according to different inspection objects without making major modifications to the overall structure of the equipment. This expands the applicability of visual inspection equipment and enhances its overall practicality and market competitiveness.

[0072] The visual inspection equipment includes a handling device with suction cups to ensure the accuracy of picking up and placing the object to be positioned. When the positioning mechanism is handed over to the downstream handling device, the object to be positioned is vacuum-adsorbed by the suction cups, and four cylinders are opened simultaneously to prevent the product from being forcibly removed, thereby avoiding scratches, bumps, and crushing damage.

[0073] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0074] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A modular positioning mechanism, characterized in that, The system includes a support module and a positioning module. The positioning module is mounted on the support module. The positioning module includes a mounting plate (4) and multiple positioning parts. The multiple positioning parts are mounted on the mounting plate (4) and form a positioning space. The positioning parts include a positioning element (6), a driving element (7), and an elastic element (8). The driving element (7) is connected to the positioning element (6) to drive the positioning element (6) to move towards the outside of the positioning space. The elastic element (8) is connected to the support module and the positioning element (6) respectively to drive the positioning element (6) to move towards the inside of the positioning space.

2. The modular positioning mechanism according to claim 1, characterized in that, The mounting plate (4) is provided with multiple slide rails (9), and the positioning members (6) are slidably disposed on the slide rails (9) in a corresponding manner. The driving member (7) is connected to the positioning member (6) and the mounting plate (4) respectively, so as to drive the positioning member (6) to slide on the slide rail (9) toward the outside of the positioning space. One end of the elastic member (8) is connected to the bearing module, and the other end is connected to the positioning member (6), so as to drive the positioning member (6) to move toward the inside of the positioning space.

3. The modular positioning mechanism according to claim 2, characterized in that, The positioning component (6) includes a sliding base plate (61), which is slidably mounted on the slide rail (9). A push block (62) is provided at the bottom of the sliding base plate (61). One end of the driving component (7) is fixed on the mounting plate (4), and the other end extends toward the push block (62) and can abut against the push block (62) to push the sliding base plate (61) to slide toward the outside of the positioning space. A positioning unit (63) and a spring pull block (64) are provided at the top of the sliding base plate (61), and the elastic component (8) is connected to the spring pull block (64).

4. The modular positioning mechanism according to claim 3, characterized in that, The positioning unit (63) includes a positioning cylinder (631) and a positioning eccentric column (632). The positioning cylinder (631) and the positioning eccentric column (632) are vertically arranged and arranged along the sliding direction perpendicular to the sliding base plate (61). The positioning eccentric column (632) includes a shaft and a column. The shaft is vertically arranged on the top surface of the sliding base plate (61). The column is eccentrically sleeved on the shaft and can rotate eccentrically about the shaft as the rotation center.

5. The modular positioning mechanism according to claim 4, characterized in that, The positioning cylinder (631) and the positioning eccentric column (632) are made of soft material, or an elastic layer is provided on the outer peripheral wall of the positioning cylinder (631) and the positioning eccentric column (632).

6. The modular positioning mechanism according to claim 5, characterized in that, The bearing module includes a positioning plate (1) and a support plate (2). The support plate (2) and the positioning module are disposed on the positioning plate (1). The positioning plate (1) is provided with a clearance groove (11). The positioning module is connected to the bottom of the positioning plate (1). The positioning cylinder (631), the positioning eccentric column (632) and the spring block (64) extend to the top of the positioning plate (1) via the clearance groove (11). The support plate (2) is disposed in the positioning space for placing the object to be positioned.

7. The modular positioning mechanism according to claim 6, characterized in that, The number of positioning parts is four, and the four positioning parts are arranged circumferentially around the positioning space. Two adjacent positioning parts form a first positioning group (601), and two other adjacent positioning parts form a second positioning group (602). During positioning, the positioning cylinder (631) and the positioning eccentric column (632) of the first positioning group (601) abut against the groove of the clearance groove (11) and the object to be positioned. The positioning cylinder (631) and the positioning eccentric column (632) of the first positioning group (601) abut against the object to be positioned only. The positioning modules of the first positioning group (601) each include at least two elastic elements (8), and the positioning modules of the second positioning group (602) each include only one elastic element (8).

8. The modular positioning mechanism according to claim 6, characterized in that, The positioning plate (1) is provided with a plurality of positioning modules, and the support plate (2) is provided with a corresponding positioning module.

9. The modular positioning mechanism according to claim 1, characterized in that, The bottom of the bearing module is provided with a pneumatic connector (3), the driving component (7) is a cylinder, and the pneumatic connector (3) is connected to the driving component (7).

10. A visual inspection device, characterized in that, Includes the modular positioning mechanism as described in any one of claims 1 to 9.

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