A clamping and flipping detection mechanism for visual inspection

Abstract

This utility model relates to the field of visual inspection equipment technology, and more particularly to a clamping and flipping inspection mechanism for visual inspection, including a lifting slide, a servo motor, a rotating platform, an infeed cylinder, a lifting cylinder, parallel grippers, a light source, and a camera. The infeed cylinder feeds the product into the inspection area. The lifting cylinder lifts the product, which is then gripped by the parallel grippers. The lifting slide raises the gripped product to the visual inspection focal point, where the camera and light source take a frontal photograph. Subsequently, the servo motor drives the rotating platform to flip 180° to take a reverse photograph, and the platform rotates sequentially for barcode reading and reset, finally ejecting the product. This device has a compact structure, multi-angle flipping control, and stable clamping capability, enabling the acquisition of front and back images, shape verification, and barcode recognition of products, improving inspection efficiency and accuracy. It is suitable for online visual inspection of various types of industrial products.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection equipment technology, and in particular to a clamping and flipping inspection mechanism for visual inspection. Background Technology

[0002] In industrial automated production processes, especially in the quality inspection of products such as electronic components, precision structural parts, and medical devices, visual inspection technology has been widely used due to its advantages such as non-contact operation, high efficiency, and traceability. Traditional visual inspection typically uses fixed cameras and light source systems to acquire and analyze images of a single side of the product, and then uses image processing algorithms to complete tasks such as dimensional measurement, surface defect identification, or character recognition.

[0003] However, in most existing visual inspection systems, products need to be inspected in a fixed posture, and the inspection mechanism itself lacks the ability to adjust the product's posture or flip it at multiple angles, resulting in the ability to acquire images from only one side of the product. When it is necessary to acquire information from multiple feature areas such as the front and back of the product or barcodes, manual flipping or additional clamping devices are often required. This not only increases structural complexity, system cost, and control difficulty, but also leads to problems such as unstable clamping, large repeatability errors, and slow flipping response. Therefore, it is essential to design a clamping and flipping inspection mechanism for visual inspection. Utility Model Content

[0004] The purpose of this invention is to provide a clamping and flipping detection mechanism for visual inspection, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a clamping and flipping detection mechanism for visual inspection, comprising a baffle, a frame, a lifting slide, a servo motor, a rotating platform, an inlet / outlet cylinder, a lifting cylinder, parallel grippers, a light source, and a camera. The lifting slide is vertically arranged, with a slide base on it. The servo motor is fixed to the slide base and drives the rotating platform to rotate around a vertical axis. The parallel grippers are mounted on the rotating platform and used to clamp the product to be inspected. The lifting cylinder is located at the bottom of the structure and is used to lift the product to be inspected upwards to the clamping position of the parallel grippers. The inlet / outlet cylinder is located on one side of the clamping area and is used to push the product to be inspected into or out of the clamping area. The lifting slide drives the rotating platform and the parallel grippers to move up and down, moving the product to the detection focus area formed by the camera and the light source, thereby achieving visual acquisition of the front, back, and barcode areas of the product.

[0006] According to the above technical solution, the rotating platform and the servo motor are coaxially driven by a key connection or a flange connection.

[0007] According to the above technical solution, the parallel gripper is a bidirectional synchronous pneumatic gripper with a symmetrical opening and closing structure.

[0008] According to the above technical solution, the camera is vertically fixed on the bracket of the structure above the lifting slide, and the light source is a ring structure, which is sleeved around the camera.

[0009] According to the above technical solution, the piston rod end of the inlet / outlet cylinder is provided with a pusher baffle for pushing or retracting the product to be inspected.

[0010] According to the above technical solution, the rotating platform can stop at any angle within the range of 0° to 360°, and the angle compensation setting is performed by the servo motor.

[0011] According to the above technical solution, the lifting slide is driven by a cylinder or a lead screw module to achieve precise vertical lifting of the rotating platform.

[0012] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: This utility model, through the collaborative structure of a lifting slide, a rotating platform, a servo motor, and parallel grippers, can achieve stable clamping and multi-angle flipping control of the product to be inspected. Combined with the sequential drive of the lifting cylinder and the inlet / outlet cylinder, it realizes an automated inspection process from feeding, photographing, scanning to unloading, significantly improving inspection efficiency. Through precise control of the rotation angle by the servo motor, 180° flipping or arbitrary angle compensation can be achieved as needed, ensuring the accuracy and adaptability of the photographing and scanning angles. At the same time, the grippers and the vision system form a closed-loop cooperation, which can complete the inspection of the front and back appearance and barcode recognition, improving the integrity and traceability of product inspection. It avoids the defects of traditional devices such as complex structure, unstable flipping, and fixed angle. The overall structure is compact, the operation is smooth, and it is suitable for efficient online visual inspection scenarios of various types of products. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of a clamping and flipping detection mechanism for visual inspection proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a clamping and flipping detection mechanism for visual inspection proposed in this utility model after removing the baffle and frame.

[0016] In the diagram: 1. Baffle, 2. Frame, 3. Lifting slide, 4. Servo motor, 5. Rotary platform, 6. Inlet / outlet cylinder, 7. Lifting cylinder, 8. Product to be inspected, 9. Parallel gripper, 10. Light source, 11. Camera. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example:

[0019] Reference Figure 1-2 A clamping and flipping inspection mechanism for visual inspection includes a baffle 1, a frame 2, a lifting slide 3, a servo motor 4, a rotating platform 5, an inlet / outlet cylinder 6, a lifting cylinder 7, a parallel gripper 9, a light source 10, a camera 11, and a support platform for carrying the product to be inspected 8. The overall structure is compact and the layout is reasonable, and it has the ability to perform multi-functional coordinated actions.

[0020] The lifting slide 3 is vertically mounted on the rear baffle 1 of the device frame and is fixedly connected by bolts. The baffle 1 is fixed to the frame 2. The lifting slide 3 is equipped with a slide block assembly that can slide vertically. The slide block is rigidly connected to the rotating platform 5, which is located in front of the lifting slide 3 and faces the product movement channel. The lifting slide 3 is driven by an electro-pneumatic cylinder located on its side to achieve overall vertical lifting, used to move the clamping structure to the specified detection height.

[0021] The rotating platform 5 is fixed to the front end of the lifting slide and is coaxially connected to the output shaft of the servo motor 4 via a bottom circular boss. A keyed or flanged connection is used to ensure rotational stability and positioning accuracy. The servo motor 4 is fixedly mounted on the side wall of the lifting slide 3, with its output end vertically downward through a mounting hole and linked to the center of the rotating platform 5, driving it to achieve angular rotation within a range of 0° to 360°.

[0022] The parallel gripper 9 is fixed to the upper surface of the rotating platform 5 by a mounting base. The parallel gripper 9 adopts a bidirectional synchronous pneumatic structure, and the left and right gripping arms can achieve symmetrical opening and closing movements in the same plane. Its drive cylinder is located behind the gripper body, and the air pipe is connected to the system air source. The gripper structure opening faces forward, directly facing the incoming direction of the product 8 to be inspected, which facilitates clamping after the product enters.

[0023] The inlet / outlet cylinder 6 is horizontally mounted on the structural base. One end of the inlet / outlet cylinder 6 is fixed to the base via a bracket, and the piston rod at the other end is connected to a pusher baffle. The pusher baffle contacts the product to be inspected 8 and pushes the product to the clamping area or pushes it out of the mechanism through horizontal reciprocating motion, thus completing the product inlet / outlet conversion.

[0024] The lifting cylinder 7 is horizontally mounted on the bottom platform of the structure. Its front piston rod passes upward through the bottom plate and connects to a lifting rod. The upper surface of the lifting rod contacts the bottom surface of the product to be inspected 8, and is used to lift the product to be inspected 8 to the clamping height of the parallel gripper 9 after it enters the mechanism. The lifting cylinder 7 is connected to the air source through a quick-connect connector, and its extension and retraction rhythm is controlled by a solenoid valve.

[0025] The camera 11 is vertically fixed above the upper frame of the mechanism by a mounting bracket, located directly above the clamping area and facing the product inspection center in the vertical direction; the light source 10 is a ring structure, which is fitted around the camera lens to form a coaxial lighting system, used to provide uniform supplementary light when taking pictures, thereby improving image clarity and recognition rate.

[0026] In use, the product is placed externally into a dedicated shape inspection box. After the equipment is turned on, the infeed cylinder 6 pushes the product into the working area inside the device. The lifting cylinder 7 then actuates, pushing the product upwards from below, causing its bottom to leave the positioning surface of the inspection box. At this time, the parallel grippers 9 close, clamping the product on both sides, completing the clamping process. Subsequently, the lifting slide 3 drives the grippers to rise as a whole, bringing the product into the focal length position of the camera, triggering the vision system to capture an image of the product's front. Then, the servo motor 4 controls the rotating platform 5 to rotate 180°, turning the product so that the reverse side faces upwards, completing the reverse side image capture.

[0027] After the reverse side inspection, the rotating platform 5 continues to rotate -90° under the control of the servo motor 4, so that the product barcode faces the scanning device and the product code is read; then it rotates -90° again to return the product to its initial front-facing position. The lifting slide 3 descends to its initial position, the parallel gripper 9 releases, the lifting cylinder 7 retrieves the product into the inspection box, and finally the infeed cylinder 6 pushes the product out of the mechanism, completing one full inspection process.

[0028] More specifically, the rotating platform 5, controlled by the servo motor 4, can achieve precise stopping at any angle, not only meeting the needs of taking pictures and scanning codes at different angles, but also possessing angle compensation and adaptive functions, improving the flexibility and applicability of the inspection. Each cylinder is centrally controlled through an electro-pneumatic circuit system, ensuring stable and reliable operation, good synchronization of gripper opening and closing, and the overall device can efficiently complete tasks such as product shape inspection, visual feature analysis, and barcode traceability.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing 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. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamping and flipping detection mechanism for visual inspection, characterized in that, include: The components include a baffle (1), a frame (2), a lifting slide (3), a servo motor (4), a rotating platform (5), an inlet / outlet cylinder (6), a lifting cylinder (7), a parallel gripper (9), a light source (10), and a camera (11). The lifting slide (3) is set vertically, and a slide block is provided on the slide block. The servo motor (4) is fixed on the slide block and drives the rotating platform (5) to rotate around the vertical axis. The parallel gripper (9) is mounted on the rotating platform (5) and used to grip the product to be inspected (8). The lifting cylinder (7) is located at the bottom of the device and is used to lift the product to be inspected (8) upward to the gripping position of the parallel gripper (9). The inlet / outlet cylinder (6) is located on one side of the clamping area and is used to push the product to be inspected (8) into or out of the clamping area. The lifting slide (3) drives the rotating platform (5) and the parallel gripper (9) to move up and down, so that the product moves to the detection focus area formed by the camera (11) and the light source (10), thereby realizing visual acquisition of the front, back and barcode areas of the product.

2. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The rotating platform (5) and the servo motor (4) are coaxially driven by a key connection or a flange connection.

3. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The parallel gripper (9) is a bidirectional synchronous pneumatic gripper with a symmetrical opening and closing structure.

4. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The camera (11) is vertically fixed on the support structure above the lifting slide (3), and the light source (10) is a ring structure, which is sleeved around the camera (11).

5. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The piston rod end of the inlet / outlet cylinder (6) is provided with a pusher baffle for pushing or retracting the product to be inspected (8).

6. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The rotating platform (5) can stop at any angle within the range of 0° to 360°, and the angle compensation setting is performed by the servo motor (4).

7. The clamping and flipping detection mechanism for visual inspection according to claim 1, characterized in that, The lifting slide (3) is driven by a cylinder or screw module to achieve precise vertical lifting of the rotating platform (5).

Images