CN204832060U - Touch -sensitive screen check out test set - Google Patents

Abstract

The utility model relates to a visual detection device, in particular to a touch screen detection device, which includes a frame, a first detection device and a second detection device, and the first detection device includes a detection platform, a first camera, and a first camera frame and a backlight, the detection platform and the first camera frame are all arranged on the frame, the backlight is arranged on the detection platform, the first camera is arranged on the first camera frame and faces the backlight, the The second detection device comprises a background plate, a second camera, a second camera frame and a plurality of light sources, the background plate and the second camera frame are all arranged on the frame, the second camera is arranged on the second camera frame and Against the background plate, the plurality of light sources are arranged around the second camera. Compared with the prior art, the utility model has the characteristics of high working efficiency, high precision, good stability, wide application range and low cost.

Description

A touch screen detection device

technical field

The utility model relates to a visual detection device, in particular to a visual detection device suitable for the touch screen of a mobile phone.

Background technique

As the human-computer interaction interface of digital products, the touch screen has been widely used in various electronic products. The quality of the touch screen plays a key role in the user's visual experience and operation experience. The mobile phone touch screen panel includes a visible area, IR hole, camera hole, earpiece hole, etc. The holes in each area of the mobile phone touch screen are made by printing ink on the surface of the touch screen panel and then drying the ink. After the ink is dried, it will be finalized. If there is a product with poor silk screen printing quality, it will directly become a waste product, and the printing quality of the ink will affect the performance of the mobile phone touch screen. Therefore, the mobile phone touch screen product will be strictly tested immediately after the screen printing process to prevent the product from becoming a waste product. ,reduce manufacturing cost.

At present, touch screen manufacturers generally use manual inspection for the quality inspection of touch screens, but manual inspection has many disadvantages. First, the manual detection speed is slow, the time period of product output is long, the production efficiency is low, and it is difficult to achieve continuity; second, due to factors such as the small size of the hole on the touch screen and the small diameter of the ink stain, manual detection is labor-intensive , it is easy to cause visual fatigue, resulting in wrong detection and missed detection; third, the number of products is huge, and the workers will suffer a lot of damage to the eyes if they test under the light for a long time; fourth, with the improvement of living standards, labor costs continue to rise, resulting in production costs increase. In the face of the problems of manual inspection, there is an urgent need for an automatic inspection equipment with good stability, high work precision and reduced work intensity for workers.

Utility model content

The purpose of the utility model is to provide a touch screen detection device to solve the problems of low detection efficiency and high detection difficulty in the prior art.

In order to achieve the above purpose, the following technical solutions are adopted. A kind of touch screen detection equipment, comprises frame, first detection device and second detection device, described first detection device comprises detection platform, first camera, first camera frame and backlight, described detection platform and first camera The frames are all arranged on the frame, the backlight is arranged on the detection platform, the first camera is arranged on the first camera frame and faces the backlight, and the second detection device includes a background plate, a second camera, The second camera frame and a plurality of light sources, the background plate and the second camera frame are all arranged on the frame, the second camera is arranged on the second camera frame and faces the background plate, and the plurality of light sources are arranged on the frame. around the second camera.

The utility model adopts two sets of visual detection devices, the first detection device adopts a backlight source, and mainly detects subtle defects such as the IR hole of the touch screen, and uses the light transmittance of the product, and the precision reaches 0.1mm, and picks out small defects that cannot be easily distinguished by the naked eye . The second detection device uses a solid color background board and multiple light sources, and an adjustable auxiliary light is installed on the frame. It uses scattered light sources to detect ink leakage, wire drawing, etc. in the window area of flat products, and find major defects in the product.

Further, the touch screen detection device also includes a transmission device, the first detection device and the second detection device are both arranged within the transmission range of the transmission device, the transmission device includes a lifting cylinder, a swing cylinder and an adsorption rod, the The lift cylinder is arranged on the frame, the swing cylinder is arranged at the execution end of the lift cylinder, one end of the adsorption rod is arranged at the execution end of the swing cylinder, and an air hole is arranged at the other end, and the air hole is connected with the vacuum system. The lifting cylinder and swing cylinder are used to drive the adsorption rod to transport, which automates the entire testing process and realizes the dynamic testing of products. The touch screen for testing is transported by vacuum adsorption without causing surface damage to the touch screen.

Further, the first camera frame is an adjustable camera frame, including a camera fixing seat, a worm gear mechanism, a bevel gear mechanism, a bearing mounting seat and an adjusting hand wheel, the bearing mounting seat is arranged on the frame, and the The worm gear mechanism and the bevel gear mechanism are arranged on the bearing mounting seat, the worm gear mechanism is connected with the adjusting hand wheel through the bevel gear mechanism, and the first camera fixing seat is arranged on the worm gear mechanism. The adjustable camera frame can detect a certain part of the product in a targeted manner and detect subtle defects by adjusting the position of the camera. Using structures such as worm gear and bevel gear, the position of the camera is adjusted by adjusting the handwheel, the structure is simple, and the operation is convenient.

Further, the touch screen detection device also includes a receiving platform, the receiving platform is set on the frame, and within the delivery range of the delivery device, the receiving platform is provided with a mobile sorting device. After the visual inspection of the product is completed, the conveying device conveys the product to the receiving platform, which is convenient for entering the next process.

Further, the detection platform is provided with adjustable positioning blocks. The size of the positioning block can be adjusted, which is suitable for detecting touch screens of different sizes.

Compared with the prior art, the utility model has the characteristics of high working efficiency, high precision, good stability, wide application range and low cost.

The utility model has the following characteristics: first, two sets of visual detection systems are adopted, which can detect different defect contents of the touch screen at the same time, and the detection accuracy is high; second, the dynamic detection of the product is carried out in the process of using the adsorption rod to transfer the product, saving time , to improve production efficiency; third, the use of backlight light source can better present clear detection pictures, improve detection accuracy and stability; fourth, the camera is installed on an adjustable camera frame, and through the use of worm gear and cone Gears and other structures, the position of the camera is adjusted by turning the adjustment hand wheel, the structure is simple and the operation is convenient. Fifth, visual inspection equipment replaces manual inspection, with continuous working hours and high accuracy.

Description of drawings

Fig. 1 is the top view structural representation of the utility model;

Fig. 2 is a schematic diagram of the front view of the first visual inspection device of the present invention;

Fig. 3 is a top view structural schematic diagram of the first visual inspection device of the present invention;

Fig. 4 is a schematic structural view of the second visual detection device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

The overall structure of the utility model is shown in FIG. 1 , which mainly includes a frame 1 , and a first detection device 2 , a second detection device 3 , a conveying device 4 and a receiving platform 5 arranged on the frame 1 . The first detection device 2, the second detection device 3, and the receiving platform 5 are all within the transmission range of the transmission device 4, and the transmission device 4 transmits the product 6 to be inspected sequentially through the first detection device 2, the second detection device 3, and finally arrives at Receiving platform 5. The first detection device 2 uses a backlight to carry out fine photographic detection of the product 6 to identify small defects. The second detection device 3 uses scattered light sources to take pictures of the product 6 as a whole to identify large defects.

The structure of the first detection device 2 is as shown in Figures 2 to 3. The first detection device includes a detection platform 21, a first camera 23, a first camera frame and a backlight 22, and the detection platform 21 and the first camera frame are all arranged on the machine. On the frame 1 , the backlight 22 is set on the detection platform 21 , and the first camera 23 is set on the camera fixing seat 24 of the first camera frame and faces the backlight 22 . The first camera frame comprises a camera holder 24, a worm gear mechanism 25, a bevel gear mechanism 26, a bearing mount 27, an adjustment hand wheel 28, and the bearing mount 27 is fixed on the frame 1, and the worm gear mechanism 25 and the bevel gear The mechanism 26 is fixed on the bearing mount 27 , the worm gear mechanism 25 is connected with the adjusting hand wheel 28 through the bevel gear mechanism 26 , and the camera fixing seat 24 is arranged on the worm gear mechanism 25 . Turn the adjustment hand wheel 28, and the bevel gear mechanism 26 will also rotate, thereby driving the worm gear mechanism 25, moving the camera fixing seat 24, and realizing the movement of the first camera 23. The first detection device 2 uses a backlight to carry out fine photographic detection of the product 6 to identify small defects.

The detection platform 21 is provided with adjustable positioning blocks. The positioning speed can be adjusted in size, suitable for detecting touch screens of different sizes.

The structure of the second detection device 3 is as shown in Figure 4, and the second detection device 3 comprises a background plate 31, a second camera 32, a second camera frame 33 and a plurality of light sources, and the background plate 31 and the second camera frame 33 are all arranged on On the frame 1, the second camera 32 is arranged on the second camera frame 33 and faces the background plate 31. Two auxiliary lights 34 with adjustable positions are arranged around the background plate 31 to form a scattered light source. The second detection device 3 utilizes scattered light sources to take pictures of the product as a whole to identify large defects.

The transmission device 4 includes a lifting cylinder 41, a swing cylinder 42 and an adsorption rod 43. The lifting cylinder 41 is arranged on the frame 1, the swing cylinder 42 is arranged on the execution end of the lifting cylinder 41, and one end of the adsorption rod 43 is arranged on the execution end of the swing cylinder 42. , The other end of the adsorption rod 42 is provided with an air hole, and the air hole is connected with the vacuum system.

The receiving platform 5 is set on the frame 1, and within the delivery range of the lifting cylinder 41 and the swinging cylinder 42, after the product 6 has been detected by the first and second detection devices respectively, the conveying device 4 will transfer the product 6 to the receiving platform. Platform 5, convenient to enter the next process.

The first detection device 2, the second detection device 3, and the transmission device 4 are all provided with sensors, and the sensors are connected to the background operating system. The touch screen detection equipment can be connected with the background operating system through the sensor. The operating system has a man-machine interface, and the background operating system can be used to set the parameters of the device through the man-machine interface.

Work process of the present utility model is:

(1) The original position of the adsorption rod 43 is at the position of the detection platform 21. When the product 6 to be inspected is transferred to the positioning block of the detection platform 21, and the sensor detects that there is a product 6 on the positioning block of the detection platform 21, the first camera 23 Taking pictures of the positioned product 6, and transmitting the pictures to image analysis software for analysis;

(2) After the work of the first detection device 2 is completed, the lifting cylinder 41 rises, pushes the adsorption rod 43 to rise, and starts the vacuum adsorption. After the adsorption rod 43 sucks the product 6, the swing cylinder 42 works, driving the adsorption rod 43 to swing, and the product 6 Turn to the background plate 31 of the second detection device 3, the sensor detects that the product 6 reaches the detection area of the second detection device, the second camera 32 of the second detection device 3 takes pictures of the moving product 6, and transmits the pictures To image analysis software analysis;

(3) After two visual inspections, the swing cylinder 42 rotates the adsorption rod 43 to the material receiving platform 5, the lifting cylinder 41 descends, turns off the vacuum adsorption, and the product 6 is transferred to the material receiving platform 5. After the product 6 is tested, it will be transported to In the next process, the adsorption rod 43 returns to the position of the detection platform 21 and waits for loading.

The above description is a preferred embodiment of the present utility model, which is only a further description of the present utility model, and cannot be interpreted as limiting the protection scope of the present utility model. For those of ordinary skill in the art, without departing from the essence of the present utility model Appropriate improvement and retouching under the premise all fall within the protection scope of the present utility model.

Claims (5)

1. A touch screen detection device, characterized in that it comprises a frame, a first detection device and a second detection device, and said first detection device comprises a detection platform, a first camera, a first camera frame and a backlight, said The detection platform and the first camera frame are both arranged on the frame, the backlight is arranged on the detection platform, the first camera is arranged on the first camera frame and faces the backlight, and the second detection device includes a background plate, a second camera, a second camera frame and a plurality of light sources, the background plate and the second camera frame are all arranged on the frame, the second camera is arranged on the second camera frame and faces the background plate, so The plurality of light sources are arranged around the second camera. 2. The touch screen detection device according to claim 1, characterized in that, the touch screen detection device also includes a transmission device, the first detection device and the second detection device are all arranged within the transmission range of the transmission device, the The transmission device includes a lifting cylinder, a swing cylinder and an adsorption rod, the lifting cylinder is arranged on the frame, the swing cylinder is arranged at the execution end of the lifting cylinder, and one end of the adsorption rod is arranged at the execution end of the swing cylinder , the other end is provided with an air hole, and the air hole is connected with the vacuum system. 3. The touch screen detection device according to claim 1, wherein the first camera frame is an adjustable camera frame, comprising a camera holder, a worm gear mechanism, a bevel gear mechanism, a bearing mount and an adjustment handwheel , the bearing mounting seat is arranged on the frame, the worm gear mechanism and the bevel gear mechanism are arranged on the bearing mounting seat, the worm gear mechanism is connected with the adjustment handwheel through the bevel gear mechanism, and the first camera fixing seat Set on the worm gear transmission mechanism. 4 . The touch screen detection device according to claim 1 , further comprising a receiving platform, the receiving platform is arranged on the frame and within the transmission range of the transmission device. 5 . 5. The touch screen detection device according to claim 1, wherein the detection platform is provided with an adjustable positioning block.