Visual inspection device

Abstract

The utility model provides a visual inspection device which comprises a test base station, a product placing seat with an adjustable horizontal position is arranged on the test base station so as to enable a to-be-detected piece to be placed horizontally, a CCD camera module, a first camera, a second camera and a third camera which are distributed outside the product placing seat are further arranged on the test base station, the position and the angle of the CCD camera module are adjustable, and the first camera, the second camera and the third camera are arranged on the test base station. The first camera is used for detecting a to-be-detected piece on the product placing seat, the first camera detects the position of the to-be-detected piece on the product placing seat, the second camera detects the shooting angle of the CCD camera module, and the third camera detects the position of the CCD camera module. According to the utility model, through the arrangement of the first camera, the second camera and the third camera, when the CCD camera module is used for detecting a to-be-detected piece on the product placing seat, the CCD camera module can be accurately adjusted to accurately collect a corresponding image according to the reflection condition of the position of the to-be-detected piece and the reflection condition of a to-be-tested part on the to-be-detected piece; and the detection precision of the visual detection device is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual inspection device technical field, specifically, it shows a visual inspection device. BACKGROUND

[0002] Visual inspection is to replace the human eye with a machine to measure and judge, and visual inspection refers to converting a target to be taken into an image signal through a machine vision product (i.e. an image taking device, divided into CMOS and CCD), transmitting the image signal to a dedicated image processing system, converting the image signal into a digitized signal according to pixel distribution and brightness, color and the like, and extracting the features of the target through various operations on the image signal, and then controlling the action of the equipment on site according to the result of the judgment.

[0003] In the prior art, when a visual inspection device is used to detect 3C products, only one CCD visual inspection system is usually selected to collect the image of the target to be detected, and the relative position between the CCD camera and the target to be detected and the shooting angle of the lens of the CCD camera are adjusted by the operator subjectively with the naked eye, so that the manual adjustment precision is not high and can only be adjusted to an approximate value, which affects the detection precision. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a visual inspection device, which is simple and practical in structure, high in automation degree and good in detection effect.

[0005] The technical scheme is as follows:

[0006] A visual inspection device comprises a test base, a product placing seat with adjustable horizontal position is arranged on the test base to enable a piece to be detected to be placed horizontally, a CCD camera module, a first camera, a second camera and a third camera are further arranged on the test base and distributed outside the product placing seat, the position and angle of the CCD camera module are adjustable, the CCD camera module is used to detect a piece to be detected on the product placing seat, the first camera detects the position of the piece to be detected on the product placing seat, the second camera detects the shooting angle of the CCD camera module, and the third camera detects the position of the CCD camera module.

[0007] Optionally, a positioning structure is arranged on the product placing seat, the positioning structure comprises a limiting angle block, a limiting block and two clamping blocks for elastic clamping, one edge of the limiting block is flush with the limiting angle block, the clamping direction of one clamping block is perpendicular to the limiting block, and the clamping direction of the other clamping block is parallel to the limiting block. Through the cooperation of the limiting angle block, the limiting block and the two clamping blocks, the positioning effect of different specifications of 3C products is realized, and the practicability of the visual inspection device is further improved.

[0008] The product placing seat surface is provided with a limiting groove, the clamping block is slidably connected with the limiting groove along the extending direction of the limiting groove, and the limiting groove is provided with a spring member connected with the clamping block.

[0009] Further, the cross-sectional area of the limiting groove and the clamping block is an isosceles trapezoid with the upper part being narrow and the lower part being wide.

[0010] The limiting block and the limiting angle block are spaced apart from each other, so that the operator can easily pick up the detected member from the product placing seat from one side after the detection work is completed.

[0011] Optionally, the lens of the CCD camera module is downwardly arranged, the lens of the first camera is vertically downwardly arranged, the lens of the second camera is vertically upwardly arranged, and the third camera is horizontally arranged and is provided with a matched 45° prism at the lens thereof. The lens of the CCD camera module is downwardly arranged so as to collect the image of the detected member, the lens of the first camera is vertically downwardly arranged so as to identify the testing part on the detected member, the lens of the second camera is vertically upwardly arranged so as to identify the angle of the lens of the CCD camera module, and the third camera reflects the light beam vertically upwardly through the 45° prism so as to identify the position of the lens on the CCD camera module.

[0012] Optionally, a first fine adjustment platform is arranged between the product placing seat and the testing base. The position of the product placing seat on the testing base in the X-axis and Y-axis directions is appropriately adjusted through the first fine adjustment platform.

[0013] Optionally, the CCD camera module is connected to a second fine adjustment platform through a mounting plate, the second fine adjustment platform is arranged on a three-axis motion platform through a rotating module, and the three-axis motion platform is arranged on the testing base. The CCD camera module can move in six axes, so as to be flexibly adjusted.

[0014] Compared with the prior art, the visual detection device has the beneficial effects that: when the CCD camera module is used to detect the detected member on the product placing seat, the first camera, the second camera and the third camera can accurately collect corresponding images according to the position of the detected member and the reflection of the testing part on the detected member, so as to further improve the detection precision of the visual detection device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic view of the overall structure of the visual detection device according to the present application.

[0016] Figure 2 The related schematic view of the product placing seat part of the embodiment of the utility model is shown in the figure.

[0017] Figure 3 The related schematic view of the CCD camera module part of the embodiment of the utility model is shown in the figure.

[0018] The related marks in the figure are as follows: 1-test base, 2-product placing seat, 3-CCD camera module, 4-first camera, 5-second camera, 6-third camera, 7-first fine adjustment platform, 8-second fine adjustment platform, 9-rotation module, 10-three-axis movement platform; 21-limiting angle block, 22-limiting block, 23-clamping block, 24-limiting groove, 25-spring piece, 31-carrying plate. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the figures in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] The embodiment of the utility model provides a visual detection device for solving the technical problems proposed in the background art. Figure 1 、 Figure 2 and Figure 3 As shown, specifically, it mainly comprises a test base 1, a horizontal position adjustable product placing seat 2 is arranged on the test base 1, the product placing seat 2 is horizontally arranged, so that the detected piece is placed on the top surface of the product placing seat 2 in a horizontal posture; the test base 1 is also provided with a CCD camera module 3, a first camera 4, a second camera 5 and a third camera 6 distributed outside the product placing seat 2, the position and angle of the CCD camera module 3 are adjustable, which is used for detecting the detected piece on the product placing seat 2, the first camera 4 detects the position of the detected piece on the product placing seat 2, the second camera 5 detects the shooting angle of the CCD camera module 3, and the third camera 6 detects the position of the CCD camera module 3.

[0021] It should be noted that the present application mainly focuses on the layout design of the hardware structure part, and the software system algorithm part and the like are not described too much in the present application.

[0022] Specifically, the lens of the CCD camera module 3 is arranged downward, the lens of the first camera 4 is arranged vertically downward, the lens of the second camera 5 is arranged vertically upward, the third camera 6 is horizontally arranged and a matched 45° prism is arranged at the lens thereof, the lens of the CCD camera module 3 is arranged downward so that it can collect the image of the to-be-detected piece, the lens of the first camera 4 is arranged vertically downward so that it can identify the to-be-tested part on the to-be-detected piece, the lens of the second camera 5 is arranged vertically upward so that it can identify the angle of the lens of the CCD camera module 3, the third camera 6 reflects the light beam vertically upward through the 45° prism (not shown in the figure) so that it can identify the position of the lens on the CCD camera module 3, the external image system performs various operations on the signals collected by the first camera, the second camera and the third camera, and then controls the action of the CCD camera module according to the identified result, so as to achieve accurate control.

[0023] In an embodiment, the product placing seat 2 is provided with a positioning structure for fixing the to-be-detected piece, which comprises a limiting corner block 21, a limiting block 22 and two clamping blocks 23 for elastic clamping, the limiting block 22 is flush with one side of the limiting corner block 21, the clamping direction of one clamping block 23 is perpendicular to the limiting block 22, and the clamping direction of the other clamping block 23 is parallel to the limiting block 22. Through the cooperation of the limiting corner block, the limiting block and the two clamping blocks, one corner of the to-be-detected piece is clamped by the limiting corner block, one side of the to-be-detected piece abuts against the limiting block, and the two clamping blocks respectively apply clamping forces to the other two sides of the to-be-detected piece, so that the positioning effect of different specifications of 3C products is achieved, and the practicability of the visual detection device is further improved.

[0024] The surface of the product placing seat 2 is provided with a limiting groove 24, the clamping block 23 is slidably connected with the limiting groove 24 along the extending direction of the limiting groove 24, and the spring member 25 connected with the clamping block 23 is arranged in the limiting groove 24. The spring member is always in a stretched state in the detection working state, so as to apply an inward clamping force to the to-be-detected piece, thereby ensuring the clamping effect, and the cross-sectional area of the limiting groove and the clamping block is an isosceles trapezoid with the upper part being narrow and the lower part being wide. Of course, other shapes can also be designed, as long as the relative sliding between the clamping block and the limiting groove can occur and the clamping block does not accidentally separate from the limiting groove during the relative movement.

[0025] The limiting block 22 and one side of the limiting corner block 21 are spaced apart. In this way, the operator can easily pick up the to-be-detected piece from the product placing seat from one side between the limiting block and the limiting corner block after the detection work is completed.

[0026] In the embodiment, the first fine adjustment platform 7 is arranged between the product placing seat 2 and the test base 1. The first fine adjustment platform is a current manual fine adjustment platform, and provides manual fine adjustment of the position in the X and Y axis directions. The position of the product placing seat on the test base in the X and Y axis directions is adjusted by the first fine adjustment platform, so as to substantially correspond to the CCD camera module above.

[0027] The CCD camera module 3 is connected to a second fine adjustment platform 8 through a mounting plate 31. The second fine adjustment platform 8 is arranged on a three-axis motion platform 10 through a rotating module 9. The three-axis motion platform 10 is arranged on the test base 1. The second fine adjustment platform is a current electric fine adjustment platform, and can automatically fine adjust the position of the CCD camera module in the X and Y axis directions. The three-axis motion platform can adjust the position of the CCD camera module in the X, Y and Z axis directions, so as to adjust the relative position of the CCD camera module and the product placing seat. The rotating module can fine adjust the angle of the CCD camera module. The CCD camera module can move in six axes, so as to flexibly adjust the position of the CCD camera module. The light beam of the lens of the CCD camera module is perpendicular to the mounting plate. Thus, the second camera can detect the angle of the mounting plate, so as to determine the shooting angle of the CCD camera module.

[0028] The visual inspection device of the embodiment can adjust the CCD camera module according to the position of the product placing seat and the reflection of the test part, so as to accurately collect the corresponding image.

[0029] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the concept of the present application. These modifications and improvements are also included in the protection scope of the present application.

Claims

1. A vision inspection apparatus, characterized by, The utility model provides a product testing device, which comprises a test base (1), a product placing seat (2) with adjustable horizontal position is arranged on the test base (1), so that the to-be-detected piece is horizontally placed, a CCD camera module (3), a first camera (4), a second camera (5) and a third camera (6) are further arranged on the test base (1) and distributed outside the product placing seat (2), the position and angle of the CCD camera module (3) are adjustable, the CCD camera module (3) is used for detecting the to-be-detected piece on the product placing seat (2), the first camera (4) detects the position of the to-be-detected piece on the product placing seat (2), the second camera (5) detects the shooting angle of the CCD camera module (3), and the third camera (6) detects the position of the CCD camera module (3).

2. The vision inspection apparatus of claim 1, wherein The product placing seat (2) is provided with a positioning structure, the positioning structure comprises a limiting angle block (21), a limiting block (22) and two clamping blocks (23) for elastic clamping, the limiting block (22) is flush with one side of the limiting angle block (21), the clamping direction of one clamping block (23) is perpendicular to the limiting block (22), and the clamping direction of the other clamping block (23) is parallel to the limiting block (22).

3. A vision inspection apparatus as claimed in claim 2, wherein The product placing seat (2) is provided with a limiting groove (24) on the surface, the clamping block (23) is slidably connected with the limiting groove (24) in the extending direction of the limiting groove (24), and the limiting groove (24) is provided with a spring member (25) connected with the clamping block (23).

4. The visual inspection apparatus of claim 3, wherein The limiting groove (24) and the clamping block (23) are all isosceles trapezoids with the upper part being narrow and the lower part being wide.

5. The vision inspection apparatus of claim 2, wherein The limiting block (22) and one side of the limiting angle block (21) are spaced apart.

6. The vision inspection apparatus of claim 1, wherein The lens of the CCD camera module (3) is arranged downward, the lens of the first camera (4) is arranged vertically downward, the lens of the second camera (5) is arranged vertically upward, and the third camera (6) is horizontally arranged and is provided with a matched 45-degree prism at the lens.

7. The vision inspection apparatus of claim 1, wherein A first fine adjustment platform (7) is arranged between the product placing seat (2) and the test base (1).

8. The vision inspection apparatus of claim 1, wherein The CCD camera module (3) is connected to a second fine adjustment platform (8) through a mounting plate (31), the second fine adjustment platform (8) is arranged on a three-axis motion platform (10) through a rotating module (9), and the three-axis motion platform (10) is arranged on the test base (1).

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