A high-efficiency automatic detection and sorting device for optical lenses

Abstract

This utility model provides a high-efficiency automatic detection and sorting device for optical lenses, relating to the field of sorting equipment technology. It includes a frame body with a three-dimensional right-angle drive system mounted on its working plane. The end effector of the three-dimensional right-angle drive system is equipped with a vacuum adsorption sorting actuator. A material conveying system includes a loading unit and a unloading unit. The loading unit includes a base, a slide rail cylinder assembly, and a tray carrier to be inspected. The base is located on the slide table of the slide rail cylinder assembly, which drives the tray carrier to be inspected along the X-axis. The unloading unit includes a first precision lead screw module, whose moving slider is fixedly connected to a sorted tray platform, on which an inspected tray carrier is mounted. The advantage of this utility model is that it eliminates the need for operators to extend their limbs into the equipment, avoiding accidents caused by unintended contact between limbs and moving parts inside the equipment, thus improving operational safety.

Description

Technical Field

[0001] This utility model relates to the field of sorting equipment technology, and in particular to an efficient automatic detection and sorting device for optical lenses. Background Technology

[0002] In the production and application of optical lenses, optical lens sorting equipment plays a crucial role, serving as specialized equipment for the quality screening and classification of optical lenses. This type of equipment typically relies on machine vision technology, using imaging devices such as CCD cameras and MTF cameras to convert the optical lenses to be inspected into image signals. Subsequently, based on image characteristics such as pixel distribution, brightness, and color, these signals are further converted into digital signals. The image processing system performs a series of complex calculations on these digital signals to extract key features of the target optical lenses, such as dimensional accuracy, image sharpness, and various optical performance indicators. Finally, based on pre-set tolerances and other relevant conditions, the system outputs the inspection results, thereby achieving automated inspection and sorting of optical lenses.

[0003] Chinese patent publication CN112090785A discloses an optical lens sorting device. This device mainly consists of a worktable, a dual-axis moving mechanism, sorting grippers, sorting trays, corner supports, rubber and plastic pads, lighting lamps, color plates, a light-diffusing plate, and a suction cup cleaning mechanism. The dual-axis moving mechanism is mounted on the worktable, and the sorting grippers are mounted on it. The bottom of the grippers is equipped with rubber suction cups for gripping optical lenses, as well as a CCD camera and an MTF camera for inspection. Multiple sorting trays are positioned on the worktable between the dual-axis moving mechanism and corresponding to the positions of the sorting grippers. The sorting trays are placed between corresponding corner supports on the worktable, with rubber and plastic pads on the corner supports close to the trays to cushion and stabilize them. Furthermore, grooves are formed on the worktable corresponding to the sorting tray positions. Lighting lamps are evenly distributed at the bottom of the grooves, and color plates and light-diffusing plates are sequentially arranged at the top, providing uniform and stable lighting conditions for the inspection of optical lenses. Meanwhile, a suction cup cleaning mechanism for cleaning rubber suction cups is also installed on the right side of the workbench.

[0004] However, this existing equipment has significant drawbacks in practical applications. Its operation relies heavily on manual intervention; operators must manually position and install the sorting tray carrying the optical components onto the positioning bracket area of ​​the work platform, and only after verifying physical stability can subsequent sorting processes be performed. However, this manual material loading method requires the sorting tray to be manually transferred to the equipment's internal operating area, posing a safety risk of unintended contact between the operator's limbs and the moving parts inside the equipment. Therefore, there is room for improvement in the existing technology. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a highly efficient automatic detection and sorting device for optical lenses, which has a high degree of automation and improves operational safety.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A high-efficiency automatic detection and sorting device for optical lenses includes:

[0008] The frame body has a three-dimensional right-angle drive system on its working plane, and the end effector of the three-dimensional right-angle drive system is equipped with a vacuum adsorption sorting actuator.

[0009] The material handling system includes a loading unit and a unloading unit; the loading unit includes a base, a slide rail cylinder assembly and a tray carrier to be inspected. The base is fixed on the frame body, and the tray carrier to be inspected is located on the slide table of the slide rail cylinder assembly. The slide rail cylinder assembly drives the tray carrier to be inspected to move along the X-axis.

[0010] The unloading unit includes a first precision lead screw module, whose moving slider is fixedly connected to a sorted tray platform, and an inspected tray carrier is set on the tray platform, the inspected tray carrier corresponding to the silo unit;

[0011] The hopper unit can be raised and lowered on one side of the frame body via a second precision lead screw module, and the hopper unit corresponds to the position of the material tray platform.

[0012] Furthermore, the working surface of the tray platform is provided with an array of cylindrical positioning pins, the axis of which is collinear with the normal vector of the platform plane.

[0013] Furthermore, the top of the cylindrical positioning pin is provided with a chamfered guide structure to form a vertical positioning reference system for the material tray.

[0014] Furthermore, the inner side of the silo unit is symmetrically provided with cantilevered support guide rods, each cantilevered support guide rod including a bearing surface, and the distance between the two symmetrical cantilevered support guide rods is less than the outer width of the inspected material tray carrier.

[0015] Furthermore, the hopper unit is rigidly connected to the motion slider of the second precision lead screw module through a triangular truss support structure.

[0016] Furthermore, the frame body is equipped with a chassis, with a material channel opening on the feeding side, which corresponds to the position of the tray carrier to be inspected, and a door on the discharging side, which corresponds to the hopper unit, with an observation window on the door.

[0017] Furthermore, the observation window is made of optical-grade acrylic sheet laminate.

[0018] Furthermore, a positive pressure dust removal system is installed on the top of the chassis.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This utility model uses a frame body as support, and a three-dimensional right-angle drive system is set on the working plane. The vacuum adsorption sorting actuator at the end is responsible for lens pickup and placement. The material conveying system is divided into a feeding unit and a discharging unit. The feeding unit is used for feeding materials, and the discharging unit is used for discharging materials. The operator feeds materials from the material channel and opens the door on the discharging side to retrieve materials. There is no need for the operator's limbs to reach into the equipment, which avoids safety accidents caused by unintended contact between limbs and moving parts inside the equipment and improves the safety of operation. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the internal structure of an efficient automatic detection and sorting device for optical lenses;

[0023] Figure 2 This is a structural schematic diagram of a three-dimensional right-angle drive system, an end effector, and a vacuum adsorption sorting actuator;

[0024] Figure 3 This is a structural diagram of the feeding unit;

[0025] Figure 4 This is a structural diagram of the feeding unit and the hopper unit;

[0026] Figure 5 This is a structural diagram of the high-efficiency automatic detection and sorting device for optical lenses, along with its chassis.

[0027] In the picture:

[0028] 1. Frame body; 2. Three-dimensional right-angle drive system; 3. End effector; 4. Vacuum adsorption sorting actuator; 5. Loading unit; 501. Base; 502. Slide rail cylinder assembly; 503. Inspection tray carrier; 6. Unloading unit; 601. First precision lead screw module; 602. Tray platform; 603. Inspection tray carrier; 7. Hopper unit; 701. Cantilever support guide rod; 8. Second precision lead screw module; 9. Cylindrical positioning pin; 10. Triangular truss support structure; 11. Chassis; 12. Door; 1201. Observation window; 13. Positive pressure dust removal system. Detailed Implementation

[0029] 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.

[0030] like Figures 1 to 5 As shown, this utility model claims protection for a high-efficiency automatic detection and sorting device for optical lenses, comprising: a frame body 1, which mainly serves as a support and fixing component; a three-dimensional right-angle drive system 2 is arranged on its working plane; the end effector 3 of the three-dimensional right-angle drive system 2 is equipped with a vacuum adsorption sorting actuator 4; the three-dimensional right-angle drive system 2 is prior art, a three-axis precision transmission mechanism of XYZ, which uses high-rigidity aluminum alloy profiles to construct an orthogonal guide rail system, wherein the X-axis is equipped with a ball screw module driven by a servo motor, the stroke of which covers the entire lateral span of the working plane; the Y-axis adopts a linear motor direct drive to achieve high-speed reciprocating motion; the Z-axis is equipped with a lifting module; and the end effector integrates the vacuum adsorption sorting actuator 4. The three-axis system achieves linkage to control the position of the vacuum adsorption sorting actuator 4, completing the picking up of the optical lens from the inspection tray carrier 503 and placing the lens onto the inspection tray carrier 603.

[0031] The material conveying system includes a feeding unit 5 and a discharging unit 6. The feeding unit 5 includes a base 501, a slide rail cylinder assembly 502, and a tray carrier 503 to be inspected. The base 501 is fixed on the frame body 1. The tray carrier 503 to be inspected is located on the slide table of the slide rail cylinder assembly 502. The slide rail cylinder assembly 502 is a ball bushing slide table cylinder. Its slide table is movable. The slide table of the slide rail cylinder assembly 502 drives the tray carrier 503 to move along the X-axis, thereby moving it closer to or away from the three-dimensional right-angle drive system 2.

[0032] The unloading unit 6 includes a first precision lead screw module 601, whose moving slider is fixedly connected to a sorted tray platform 602. An inspected tray carrier 603 is provided on the tray platform 602, and the inspected tray carrier 603 corresponds to the hopper unit 7. Among them, the working surface of the tray platform 602 is provided with an array of cylindrical positioning pins 9. The axis of the cylindrical positioning pins 9 is collinear with the normal vector of the platform plane. The bottom of the inspected tray carrier 603 is provided with an insertion position corresponding to the cylindrical positioning pins 9. Thus, the inspected tray carrier 603 is positioned on the tray platform 602 without displacement by the matching use of the cylindrical positioning pins 9 and the insertion position.

[0033] The top of the cylindrical positioning pin 9 is provided with a chamfered guide structure to form a vertical positioning reference system for the material tray. The chamfered guide structure helps the insertion position of the inspected material tray carrier 603 to be inserted more smoothly.

[0034] The hopper unit 7 is vertically and flexibly mounted on one side of the frame body 1 via the second precision lead screw module 8. The hopper unit 7 corresponds to the position of the material tray platform 602. The inner side of the hopper wall of the hopper unit 7 is symmetrically provided with cantilever support guide rods 701. The cantilever support guide rods 701 include a bearing surface, which is the top plane of the cantilever support guide rods 701. The distance between the two symmetrical cantilever support guide rods 701 is less than the outer width of the inspected material tray carrier 603. Once the inspected tray carrier 603 is full of lenses, the first precision screw module 601 controls the tray platform 602, along with the inspected tray carrier 603, to extend into the hopper unit 7. At this time, the inspected tray carrier 603 is positioned above the corresponding cantilever support guide rod 701. The second precision screw module 8 controls the hopper unit 7 to rise, causing the inspected tray carrier 603 to rest on the cantilever support guide rod 701, thus separating the inspected tray carrier 603 from the tray platform 602. At this point, the tray platform 602 can be withdrawn from the hopper unit 7 under the action of the first precision screw module 601.

[0035] The hopper unit 7 is rigidly connected to the motion slider of the second precision lead screw module 8 via the triangular truss support structure 10. The triangular truss support structure 10 helps to improve the stability of the hopper unit 7. The hopper unit 7 is detachably fixed to the triangular truss support structure 10 by bolt connection. When the hopper unit 7 is full of the inspected material tray carrier 603, it can be put back into the empty hopper unit 7.

[0036] The frame body 1 is equipped with a housing 11, which has a material channel on the inlet side, corresponding to the position of the tray carrier 503 to be inspected. The outlet side has a door 12, corresponding to the hopper unit 7. The door 12 has an observation window 1201. Operators place the tray carrier 503 to be inspected onto the slide table of the slide rail cylinder assembly 502 through the material channel, and the slide rail cylinder assembly 502 transports it to the three-dimensional right-angle drive system 2. When the hopper unit 7 is full, the door 12 is opened for loading and unloading. The observation window 1201 helps to observe the fullness of the hopper unit 7. The observation window 1201 is made of optical-grade acrylic sheet laminate, which has good transparency and is not as easily damaged as glass.

[0037] In this embodiment, a positive pressure dust removal system 13 is provided on the top of the chassis 11. The positive pressure dust removal system 13 can effectively filter dust in the air entering the chassis 11, reduce dust deposition inside the chassis 11, thereby protecting the normal operation of the equipment and extending the service life of the equipment.

[0038] The working principle of this utility model is as follows: A three-dimensional right-angle drive system 2 is provided on the working plane, supported by a frame body 1. A vacuum adsorption sorting actuator 4 at its end is responsible for lens pickup and placement. The material conveying system is divided into a loading unit 5 and a unloading unit 6. The slide rail cylinder assembly 502 of the loading unit 5 drives the inspection tray carrier 503 to move along the X-axis towards or away from the drive system. The vacuum adsorption sorting actuator 4 picks up and inspects the lenses in the inspection tray carrier 503, then places the qualified products into the inspected tray carrier 6. In section 03, the first precision lead screw module 601 of the unloading unit 6 drives the material tray platform 602 to move to the material bin unit 7 for placement; the material bin unit 7 is raised and lowered by the second precision lead screw module 8. When the material bin unit 7 is full of the inspected material tray platform 603, it can be removed and replaced; the operator loads the material from the material channel opening and opens the door 12 on the discharge side to retrieve the material. There is no need for the operator's limbs to reach into the equipment, which avoids safety accidents caused by unexpected contact between the limbs and the moving parts inside the equipment and improves the safety of operation.

[0039] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An efficient automatic detection and sorting device for optical lenses, characterized in that, include: The frame body has a three-dimensional right-angle drive system on its working plane, and the end effector of the three-dimensional right-angle drive system is equipped with a vacuum adsorption sorting actuator. The material handling system includes a loading unit and a unloading unit. The loading unit includes a base, a slide rail cylinder assembly, and a tray carrier to be inspected. The base is fixed on the frame body, and the tray carrier to be inspected is located on the slide table of the slide rail cylinder assembly. The slide rail cylinder assembly drives the tray carrier to be inspected to move along the X-axis. The unloading unit includes a first precision lead screw module, whose moving slider is fixedly connected to a tray platform that has been sorted. An inspected tray carrier is set on the tray platform, and the inspected tray carrier corresponds to the hopper unit. The hopper unit can be raised and lowered on one side of the frame body via a second precision lead screw module, and the hopper unit corresponds to the position of the material tray platform.

2. The optical lens high-efficiency automatic detection and sorting device according to claim 1, characterized in that, The working surface of the tray platform is provided with an array of cylindrical positioning pins, and the axis of the cylindrical positioning pins is collinear with the normal vector of the platform plane.

3. The optical lens high-efficiency automatic detection and sorting device according to claim 2, characterized in that, The top of the cylindrical positioning pin is provided with a chamfered guide structure to form a vertical positioning reference system for the material tray.

4. The optical lens high-efficiency automatic detection and sorting device according to claim 1, characterized in that, The inner side of the silo unit is symmetrically provided with cantilevered support guide rods. The cantilevered support guide rods include a bearing surface, and the distance between the two symmetrical cantilevered support guide rods is less than the outer width of the inspected material tray carrier.

5. The optical lens high-efficiency automatic detection and sorting device according to claim 4, characterized in that, The hopper unit is rigidly connected to the motion slider of the second precision lead screw module through a triangular truss support structure.

6. The optical lens high-efficiency automatic detection and sorting device according to claim 1, characterized in that, The frame body is equipped with a box, with a material channel opening on the feeding side, which corresponds to the position of the tray carrier to be inspected. The discharge side is equipped with a door, which corresponds to the hopper unit. The door is equipped with an observation window.

7. The optical lens high-efficiency automatic detection and sorting device according to claim 6, characterized in that, The observation window is made of optical-grade acrylic sheet laminate.

8. The optical lens high-efficiency automatic detection and sorting device according to claim 6, characterized in that, A positive pressure dust removal system is installed on the top of the chassis.

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