Terminal visual inspection stage

Abstract

The utility model relates to visual inspection field, specifically disclose a kind of terminal visual inspection object table, including object table, the upper portion of object table is provided with adjusting cover plate, the inside annular array of adjusting cover plate is provided with positioning screw rod, the inside of adjusting cover plate is located the outside of positioning screw rod and is provided with threaded sleeve, the center end of positioning screw rod located close to adjusting cover plate is provided with limit pad, the inside of movable perforation is located the inside wall of adjusting cover plate and is equipped with limit ruler plate, movable sleeve is installed between limit pad and positioning screw rod. Limit ruler plate set in the process of rotating positioning screw rod can be movable perforation and limit guiding, movable sleeve can guarantee the movement of limit pad, therefore the reading on the side of limit pad set and limit ruler plate controls mounting position, when the four positioning screw rods set adjust the position of placement according to the chip needed to detect, then it can guarantee the limit of chip, can avoid chip displacement when vacuum suction.

Description

Technical Field

[0001] This utility model relates to the field of visual inspection, specifically a terminal visual inspection stage. Background Technology

[0002] Terminal vision inspection is an automated inspection method based on machine vision and artificial intelligence technologies. It is widely used in industries such as electronics manufacturing, automotive wiring harnesses, hardware processing, and new energy to detect appearance defects, dimensional deviations, and assembly quality issues in terminal components. It significantly improves inspection efficiency and consistency while reducing labor costs and error rates. Terminal vision inspection systems typically detect the following defects or parameters: appearance defects, dimensional inspection, assembly inspection, and pin detection. Through the use of high-resolution industrial cameras combined with traditional algorithms, terminal vision inspection systems have become a key tool for modern manufacturing to achieve automated, intelligent, and zero-defect production. It not only significantly improves inspection efficiency and consistency but also effectively reduces labor costs and quality risks, making it an ideal solution for quality control of terminal components. The stage is the basic structure of a semiconductor probe station, used to support and move the semiconductor wafer to be tested. The stage is typically controlled by a high-precision electric drive system, allowing for minute displacements in the X, Y, and Z directions.

[0003] However, the current detection stage uses vacuum adsorption to limit the chip position. When adsorption is started, the chip is prone to displacement, which requires multiple focusing tests in subsequent detection. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a terminal visual inspection stage, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a terminal visual inspection stage, including a stage, an adjusting cover plate is provided above the stage, a positioning screw is arranged in a circular array inside the adjusting cover plate, a threaded sleeve is provided inside the adjusting cover plate outside the positioning screw, a limiting pad is provided at the center end of the positioning screw near the adjusting cover plate, a movable through hole is opened inside the limiting pad, a limiting ruler plate is installed on the inner side of the movable through hole on the inner side wall of the adjusting cover plate, and a movable sleeve is installed between the limiting pad and the positioning screw.

[0006] As a further embodiment of this utility model: a cover plate is installed on the upper outer side of the platform, and a positioning insertion hole is formed in a circular array inside the cover plate. A positioning rod is installed on the lower surface of the adjusting cover plate corresponding to the position of the positioning insertion hole.

[0007] As a further improvement of this utility model: the interior of the stage is equipped with a stage surface, and a vacuum adsorption hole is opened at the center of the stage surface.

[0008] As a further embodiment of this utility model: the positioning screw is rotatably connected to the threaded sleeve, and the threaded sleeve is fixedly connected to the adjusting cover plate.

[0009] As a further embodiment of this utility model: the limiting pad is movably connected to the positioning screw through the movable sleeve, and the limiting ruler plate is fixedly connected to the adjusting cover plate.

[0010] As a further improvement of this utility model: the adjusting cover plate is engaged with the positioning hole by the positioning rod.

[0011] As a further improvement of this utility model, the inner diameter of the adjusting cover plate matches the outer diameter of the platform.

[0012] As a further improvement of this utility model, the vacuum adsorption hole is connected to an external vacuum adsorption mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are: During the rotation of the positioning screw, the limit plate will move through the hole to limit and guide the movement. The movable sleeve can ensure the movement of the limit pad. Therefore, the installation position is controlled by the reading on one side of the limit pad and the limit plate. After the four positioning screws are adjusted to the position of the chip to be detected, the chip can be limited, which can prevent the chip from shifting during vacuum adsorption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a terminal vision inspection stage. Figure 2 This is a schematic diagram of the structure of the stage surface in a terminal vision inspection stage; Figure 3 A schematic diagram of the structure of an adjustable cover plate in a terminal vision inspection stage; Figure 4 This is a schematic diagram of the installation of a positioning screw in a terminal vision inspection stage; Figure 5 This is a cross-sectional view of the overall device in a terminal vision inspection platform.

[0015] In the diagram: 1. Stage; 2. Adjustable cover plate; 3. Stage surface; 4. Positioning screw; 5. Vacuum suction hole; 101. Covering pad; 102. Positioning insertion hole; 201. Positioning insertion rod; 401. Threaded sleeve; 402. Limiting pad; 403. Limiting ruler plate; 404. Movable perforation; 405. Movable sleeve. Detailed Implementation

[0016] 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.

[0017] like Figure 1-5 As shown, this embodiment provides a terminal vision inspection stage, including a stage 1. An adjusting cover 2 is disposed on the top of the stage 1. The inner diameter of the adjusting cover 2 matches the outer diameter of the stage 1. A positioning screw 4 is arranged in a circular array inside the adjusting cover 2. A threaded sleeve 401 is disposed inside the adjusting cover 2 outside the positioning screw 4. The threaded sleeve 401 is fixedly connected to the adjusting cover 2. The positioning screw 4 is rotatably connected to the threaded sleeve 401. A limiting pad 402 is disposed at the end of the positioning screw 4 near the center of the adjusting cover 2. The outer side of the limiting pad 402 is tangent to the lower surface of the adjusting cover 2. The limiting pad 402 has a movable through hole 404 inside. A limiting ruler 403 is installed on the inner side of the movable through hole 404, which is located on the inner side wall of the adjusting cover plate 2. The limiting ruler 403 is fixedly connected to the adjusting cover plate 2. A movable sleeve 405 is installed between the limiting pad 402 and the positioning screw 4. The limiting pad 402 is movably connected to the positioning screw 4 through the movable sleeve 405. A movable ball is provided at the end of the positioning screw 4 inside the movable sleeve 405, which allows the limiting pad 402 to rotate circumferentially at the end of the positioning screw 4 without falling off. At the same time, during the rotation, the limiting ruler 403 is completely limited inside the movable through hole 404.

[0018] like Figure 2-3As shown, in this embodiment, a cover plate 101 is installed on the upper outer side of the stage 1. The cover plate 101 has a ring array of positioning holes 102 inside. A positioning rod 201 is installed on the lower surface of the adjusting cover plate 2 at the position corresponding to the positioning hole 102. The adjusting cover plate 2 is engaged with the positioning hole 102 through the positioning rod 201. A stage surface 3 is installed inside the stage 1. The stage surface 3 is designed to be flat. Before processing, it is finely polished on both sides so that the chip to be tested can fit well with the stage surface 3. A vacuum adsorption hole 5 is opened at the center of the stage surface 3. The vacuum adsorption hole 5 is connected to a vacuum adsorption mechanism.

[0019] The working principle of this utility model is as follows: Before use, the chip to be tested is placed on the upper surface of the stage 3 corresponding to the vacuum adsorption hole 5. The adjustment cover 2 is assembled with the stage 1 by inserting the positioning rod 201 into the positioning hole 102 on the outer cover plate 101 of the stage 1. At this time, there is a small gap between the outer wall of the multiple limiting pads 402 and the upper surface of the stage 3. When the positioning screw 4 and the threaded sleeve 401 are rotated, the limiting pads 402 will not rub against the upper surface of the stage 3. At the same time, when the positioning screw 4 is rotated, the limiting ruler 403 will move inside the limiting pads 402. The perforation 404 provides limiting guidance, while the movable sleeve 405 connecting the limiting pad 402 and the positioning screw 4 ensures the movement of the limiting pad 402 during the engagement and rotation of the positioning screw 4. Therefore, the installation position is controlled by the reading on one side of the limiting pad 402 and the limiting ruler 403. After the four positioning screws 4 are adjusted to the position of the chip to be detected, the chip is limited. Then, the vacuum source connected to the vacuum adsorption hole 5 is activated to stably adsorb the chip in the position of the vacuum adsorption hole 5, preventing displacement during adsorption. Therefore, the detection lens only needs to focus once to detect all products on the stage without multiple focusing adjustments.

[0020] 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 entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, 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.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal vision inspection stage, comprising a stage (1), characterized in that, An adjusting cover plate (2) is provided above the platform (1). A positioning screw (4) is arranged in a ring array inside the adjusting cover plate (2). A threaded sleeve (401) is provided inside the adjusting cover plate (2) outside the positioning screw (4). A limiting pad (402) is provided at the end of the positioning screw (4) near the center of the adjusting cover plate (2). A movable through hole (404) is opened inside the limiting pad (402). A limiting ruler plate (403) is installed on the inner side of the movable through hole (404) on the inner side wall of the adjusting cover plate (2). A movable sleeve (405) is installed between the limiting pad (402) and the positioning screw (4).

2. The terminal vision inspection stage according to claim 1, characterized in that, A cover plate (101) is installed on the outer side of the upper end of the platform (1). The cover plate (101) has a positioning hole (102) arranged in a ring array inside. A positioning rod (201) is installed on the lower surface of the adjusting cover plate (2) corresponding to the position of the positioning hole (102).

3. The terminal visual inspection stage according to claim 1, characterized in that, The stage (1) has a stage surface (3) installed inside, and a vacuum adsorption hole (5) is opened at the center of the stage surface (3).

4. The terminal vision inspection stage according to claim 1, characterized in that, The positioning screw (4) is engaged and rotatably connected with the threaded sleeve (401), and the threaded sleeve (401) is fixedly connected with the adjusting cover plate (2).

5. A terminal vision inspection stage according to claim 1, characterized in that, The limiting pad (402) is movably connected to the positioning screw (4) through the movable sleeve (405), and the limiting ruler plate (403) is fixedly connected to the adjusting cover plate (2).

6. A terminal vision inspection stage according to claim 2, characterized in that, The adjusting cover (2) is engaged with the positioning hole (102) by the positioning rod (201).

7. A terminal vision inspection stage according to claim 1, characterized in that, The inner diameter of the adjusting cover (2) matches the outer diameter of the platform (1).

8. A terminal vision inspection stage according to claim 3, characterized in that, The vacuum adsorption hole (5) is connected to an external vacuum adsorption mechanism.

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