Automatic detection device for surface flaws of touch screen glass
By designing an automated detection device for touch screen glass surface defects and adopting a dual-axis detection structure and LED light source, the problems of misjudgment and missed detection in traditional manual visual methods are solved, achieving efficient defect detection and improving yield rate.
Patent Information
- Application Number
- CN202422618984.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Traditional touch screen glass component inspection methods rely on manual visual inspection, which is greatly affected by the proficiency of the inspectors. There are high rates of misjudgment and missed detection, making it impossible to implement assembly line inspection and slow.
An automated detection device for touch screen glass surface defects was designed. It adopted a dual-axis detection structure, combined with an LED light source and a defect detection head. The drive motor drove the rotating rod to achieve automatic movement of the glass and precise position detection. The defect detection was performed by using light refraction and reflection.
It improves the success rate and yield rate of detection, realizes the standardized and automated detection of touch screen glass components, reduces human errors and improves production efficiency.
Smart Images

Figure CN223413236U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automatic detection devices, in particular to an automatic detection device for surface defects of touch screen glass. Background Art
[0002] Touchscreen glass components are widely used across various sectors of the national economy, in daily work, and in people's lives. Typical examples include display screens, mobile phone panels, iPads, and various industrial and household glass panels. Surface defects such as scratches and chipped edges can significantly impact the product's functional quality and aesthetics. Therefore, automated, quantitative online detection of surface defects in touchscreen glass components is essential to adapt to assembly line operations in industrial production. This is crucial for improving product quality and enabling enterprise transformation and upgrading.
[0003] Traditionally, the inspection method for touch screen glass components relies primarily on visual inspection. Workers place the surface of the touch screen glass component under strong light and visually observe the scattered light generated by surface defects. This light is then compared to a standard graticule to determine the size of the defect. This visual inspection method is significantly affected by the proficiency of the inspector and is highly subjective. Furthermore, long-term inspections can cause eye fatigue, leading to misjudgments and missed detections. Furthermore, visual inspections are slow, have a high miss rate, and are unreliable, making them impractical for integrated, integrated inspection throughout the entire production process. Consequently, touch screen glass component suppliers are in urgent need of an automated online inspection system for surface defects in touch screen glass to achieve enterprise transformation and upgrades. Utility Model Content
[0004] Technical problems solved
[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides an automatic detection device for surface defects of touch screen glass, which can effectively solve the defects of the technical methods in the prior art.
[0006] Technical Solution
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] The utility model provides an automatic detection device for defects on the surface of a touch screen glass, comprising a bracket, the bracket being an L-shaped structure, and an adjustment structure being provided at the bottom end of the bracket, a mounting bracket being provided at the bottom end of the adjustment structure, a storage rack being provided at the top end of the mounting bracket, a defect detection head and a lamp holder being provided in the adjustment structure, the adjustment structure comprising a driving motor, the driving motor being fixed to the bottom end of the top end of the bracket, the output end of the driving motor being connected and fixed to a rotating rod, the rotating rod being provided in a transverse slide rail, the rotating rod in the transverse slide rail being sleeved and connected to a transverse slider, the bottom end of the transverse slider being connected and fixed to a side slide rail, the side slide rail A rotating rod is provided inside, where the rotating rod is connected and fixed to the L-shaped plate, and the bottom end of the L-shaped plate is connected and fixed to the defect detection head and the lamp head, the mounting frame includes two sets of oppositely arranged side panels, a top frame provided on the inner side of the side panels and a rotating shaft seat provided on the top of the top frame, a roller is provided between the rotating shaft seats, and a rotating groove is provided in the middle of the roller, the storage rack includes a storage plate and a storage rack provided in the storage plate, the storage rack includes a rotating motor, multiple sets of columns provided at the top of the rotating motor and a clamping plate provided at the top of the columns, a receiving plate is provided at the bottom end of the column, and the rotating motor is provided in the storage groove provided in the middle of the storage plate.
[0009] Furthermore, the two groups of rotating rods are respectively connected to the output end of the driving motor, and the rotating rods are threaded rod structures. The middle parts of the horizontal slide rails and the L-shaped plates are provided with thread grooves, and the thread grooves are engaged with the threaded rods.
[0010] Furthermore, the defect detection head and the lamp head are arranged opposite to each other, and the lamp head is an LED light source, and a control panel is provided on one side of the bracket.
[0011] Furthermore, the size of the rotation groove is adapted to the width of the storage plate.
[0012] Furthermore, the receiving plate is placed in the placement groove, the card plate is a hollow structure, and a fan-shaped plate structure is fixed to the top of the card plate, and an arc structure is opened on the inner side of the plate structure, and the output end of the rotating motor is fixedly connected to the bottom of the receiving plate.
[0013] Furthermore, the receiving board, defect detection head, lamp head, driving motor and one end of the rotating motor are all electrically connected to the control board.
[0014] Beneficial effects
[0015] Compared with the known public technologies, the technical solution provided by this utility model has the following beneficial effects:
[0016] The utility model provides a mounting frame and a storage rack structure, so that the user can place square or round touch screen glass on the top of the card board and clamp it through the card board. A fan-shaped structure is provided on the top of the card board, which can clamp the square or round glass. The rotating motor at the bottom drives the glass to rotate in the placement groove of the storage board, and finally the storage board is placed on the roller with the rotation groove, so as to realize the effect of transportation and automatic movement, and facilitate fast operation on the assembly line.
[0017] The utility model sets up a dual-axis detection structure, and cooperates with the lamp head structure on one side to irradiate the light source on the glass. The bottom receiving plate can receive the light after refraction, and the defect detection head can receive the reflected light, so as to detect defective products on the surface and inside of the glass panel, thereby achieving the function of standardized detection. The dual-axis structure can drive the rotating rod to rotate through the driving motor, and the horizontal slider and L-shaped plate that are engaged with the outer side of the rotating rod can realize dual-axis movement. Under the operation of the control panel, the precise position of the defect detection head and the lamp head can be controlled. Compared with the existing visual inspection method, the success rate of detection can be effectively improved, and the yield rate can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2 This is the structural front view of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the bracket, adjustment structure and control panel in the utility model;
[0022] Figure 4 This is a structural breakdown diagram of the central storage rack and the mounting rack of the utility model;
[0023] Figure 5 This is a structural breakdown diagram of the central storage rack of the present invention.
[0024] The numbers in the figure represent: 1. Bracket; 2. Control panel; 3. Adjustment structure; 31. Drive motor; 32. Horizontal slide rail; 33. Horizontal slider; 34. Side slide rail; 35. Turn bar; 36. L-shaped plate; 4. Mounting frame; 41. Side plate; 42. Top frame; 43. Rotating shaft seat; 44. Roller; 45. Rotating groove; 5. Storage rack; 51. Storage plate; 511. Storage groove; 52. Storage rack; 521. Rotating motor; 522. Card plate; 523. Column; 53. Receiving plate; 6. Defect detection head; 7. Lamp holder. DETAILED DESCRIPTION
[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0026] The present invention will be further described below with reference to the embodiments.
[0027] Embodiment: An automatic detection device for surface defects of touch screen glass, see the attached Figure 1 -Attached Figure 5, including a bracket 1, the bracket 1 is an L-shaped structure, and the bottom end of the bracket 1 is provided with an adjustment structure 3, the bottom end of the adjustment structure 3 is provided with a mounting frame 4, the top of the mounting frame 4 is provided with a shelf 5, the adjustment structure 3 is provided with a defect detection head 6 and a lamp head 7, the adjustment structure 3 includes a drive motor 31, the drive motor 31 is fixed to the bottom of the top of the bracket 1, the output end of the drive motor 31 is connected and fixed with a rotating rod 35, the rotating rod 35 is provided in a horizontal slide rail 32, and the horizontal slide rail 32 The rotating rod 35 is connected with the horizontal slider 33, the bottom end of the horizontal slider 33 is connected and fixed with the side slide rail 34, the side slide rail 34 is provided with a rotating rod 35 inside, the rotating rod 35 is connected and fixed with the L-shaped plate 36, the bottom end of the L-shaped plate 36 is connected and fixed with the defect detection head 6 and the lamp head 7, the mounting frame 4 includes two sets of oppositely arranged side plates 41, a top frame 42 arranged on the inner side of the side plate 41 and a rotating shaft seat 43 arranged at the top of the top frame 42, a roller 44 is provided between the rotating shaft seats 43, and the roller A rotation groove 45 is provided in the middle of the shaft 44, and the storage rack 5 includes a storage plate 51 and a storage rack 52 arranged in the storage plate 51. The storage rack 52 includes a rotating motor 521, a plurality of columns 523 arranged at the top of the rotating motor 521, and a clamping plate 522 arranged at the top of the column 523. A receiving plate 53 is provided at the bottom end of the column 523, and the rotating motor 521 is arranged in the storage groove 511 opened in the middle of the storage plate 51; through the structure of the mounting rack 4 and the storage rack 5, the user can place a square or round touch screen glass on the top of the clamping plate 522 and clamp it through the clamping plate 522. A fan-shaped structure is provided at the top of the clamping plate 522, which can clamp the square or round glass and drive it to rotate in the storage groove 511 of the storage plate 51 through the rotating motor 521 at the bottom. Finally, the storage plate 51 is placed on the roller 44 with the rotation groove 45, so as to achieve the effect of transportation and automatic movement, which is convenient for fast operation on the assembly line.
[0028] The two sets of rotating rods 35 are respectively connected to the output end of the driving motor 31, and the rotating rod 35 is a threaded rod structure. The middle part of the horizontal slide rail 32 and the L-shaped plate 36 is provided with a threaded groove, and the threaded groove is engaged with the threaded rod; the defect detection head 6 and the lamp head 7 are arranged opposite to each other, and the lamp head 7 is an LED light source, and a control board 2 is provided on one side of the bracket 1; the size of the rotating groove 45 is adapted to the width of the storage plate 51; the receiving plate 53 is placed in the placement groove 511, the card plate 522 is a hollow structure, and the top of the card plate 522 is fixed with a fan-shaped plate structure, and the inner side of the plate structure is provided with an arc structure, the output end of the rotating motor 521 is fixedly connected to the bottom of the receiving plate 53, the receiving plate 53, the defect detection head 6, the lamp head 7, the driving motor 31 and One end of the rotating motor 521 is electrically connected to the control board 2; in the present invention, a dual-axis detection structure is set up, and in conjunction with the lamp head 7 structure on one side, the light source is irradiated on the glass, the bottom receiving plate 53 can receive the light after refraction, and the defect detection head 6 can receive the reflected light, and perform defective product detection on the surface and interior of the glass panel to achieve the function of standardized detection, and the dual-axis structure can drive the rotating rod 35 to rotate by the driving motor 31, and the horizontal slider 33 and the L-shaped plate 36 that are engaged with the outer side of the rotating rod 35 can realize dual-axis movement, and under the operation of the control board 2, the precise position of the defect detection head 6 and the lamp head 7 can be controlled, which can effectively improve the success rate of detection and improve the yield rate compared with the existing visual inspection method.
[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.
Claims
1. An automatic detection device for surface defects of touch screen glass, characterized in that: The invention comprises a bracket (1), wherein the bracket (1) is an L-shaped structure, and an adjustment structure (3) is provided at the bottom end of the bracket (1), a mounting frame (4) is provided at the bottom end of the adjustment structure (3), a storage rack (5) is provided at the top end of the mounting frame (4), a defect detection head (6) and a lamp head (7) are provided in the adjustment structure (3), and the adjustment structure (3) comprises a driving motor (31), the driving motor (31) is fixed to the bottom end of the top end of the bracket (1), the output end of the driving motor (31) is connected and fixed with a rotating rod (35), the rotating rod (35) is provided in a transverse slide rail (32), the rotating rod (35) in the transverse slide rail (32) is sleeve-connected with a transverse slider (33), the bottom end of the transverse slider (33) is connected and fixed with a side slide rail (34), a rotating rod (35) is provided inside the side slide rail (34), and the rotating rod (35) is connected and fixed with an L-shaped plate (36). The bottom end of the L-shaped plate (36) is connected and fixed to the defect detection head (6) and the lamp head (7). The mounting frame (4) includes two sets of oppositely arranged side plates (41), a top frame (42) arranged on the inner side of the side plates (41), and a rotating shaft seat (43) arranged on the top of the top frame (42). A roller (44) is arranged between the rotating shaft seats (43), and a rotating groove (45) is opened in the middle of the roller (44). The storage rack (5) includes a storage plate (51) and a placement rack (52) arranged in the placement plate (51), the placement rack (52) including a rotary motor (521), a plurality of columns (523) arranged at the top of the rotary motor (521) and a clamping plate (522) arranged at the top of the columns (523), a receiving plate (53) being arranged at the bottom end of the columns (523), and the rotary motor (521) being arranged in a placement slot (511) opened in the middle of the placement plate (51).
2. The touch screen glass surface defect automatic detection device according to claim 1, characterized in that: The two groups of rotating rods (35) are respectively connected to the output end of the driving motor (31), and the rotating rods (35) are threaded rod structures. The middle parts of the horizontal slide rail (32) and the L-shaped plate (36) are provided with thread grooves, and the thread grooves are engaged with the threaded rods.
3. The touch screen glass surface defect automatic detection device according to claim 1, characterized in that: The defect detection head (6) and the lamp head (7) are arranged opposite to each other, and the lamp head (7) is an LED light source. A control panel (2) is provided on one side of the bracket (1).
4. The touch screen glass surface defect automatic detection device according to claim 1, characterized in that: The size of the rotating groove (45) is adapted to the width of the storage plate (51).
5. The touch screen glass surface defect automatic detection device according to claim 4, characterized in that: The receiving plate (53) is placed in the placement groove (511), the clamping plate (522) is a hollow structure, and a fan-shaped plate structure is fixed to the top of the clamping plate (522), and an arc structure is opened on the inner side of the plate structure. The output end of the rotating motor (521) is fixedly connected to the bottom of the receiving plate (53).
6. The touch screen glass surface defect automatic detection device according to claim 1, characterized in that: The receiving plate (53), the defect detection head (6), the lamp head (7), the driving motor (31), and one end of the rotating motor (521) are all electrically connected to the control board (2).