Glass edge detection device and glass edge detection method

Abstract

The invention relates to the field of glass detection, in particular to a universal glass edge detection device which comprises a rack provided with a glass conveying module, an electronic cam main shaft, an electronic cam auxiliary shaft, a profile detection module and a glass edge detection module, and the profile detection module and the glass edge detection module are sequentially arranged in the feeding direction of the glass conveying module. The invention also provides a universal glass edge detection method, the electronic cam main shaft controls the glass conveying speed, performs profile detection on the conveyed glass to obtain glass edge coordinate information, the cam table is generated according to the glass conveying speed and the glass edge coordinate information, and the electronic cam slave shaft adjusts the glass edge detection focal length according to the cam table. According to the universal glass edge detection device and the universal glass edge detection method provided by the invention, edge detection can be carried out on glass in convection motion, the detection efficiency is high, the precision is high, and automatic detection of glass with different sizes, shapes and specifications can be met.

Description

[0001] This case is a divisional application based on the invention patent with application date 20240919, application number CN202411303603.9, and name “A universal glass edge detection device and a universal glass edge detection method” as the parent case. Technical Field

[0002] The present invention relates to the field of glass detection, and in particular to a glass edge detection device and a glass edge detection method. Background Art

[0003] Edge inspection of automotive glass is an important process step in the automotive glass production process. Currently, most automotive glass manufacturers use two main inspection methods: manual inspection and machine inspection. The advantage of manual inspection is its low cost, but the disadvantages are also obvious. Manual inspection is subject to visual fatigue and randomness, and cannot completely detect all defects or flaws, making it difficult to control product quality. There are also certain safety risks in the inspection process. The advantage of machine inspection is its high degree of automation, which can ensure both inspection efficiency and quality. Glass edge defect detection machines include the Chinese utility model patent with publication number CN218155983U, entitled "A Glass Accessory Position Detection Device," and the Chinese invention patent with publication number CN116466065A, entitled "A Rotary Switching Glass Substrate Edge Detection Device."

[0004] There are two detection methods for existing glass edge defect detection equipment: one is to clamp the glass and keep it stationary, while the detection module can be moved for detection; the other is to keep the detection module stationary and achieve detection by changing the position of the glass. The disadvantage of the first solution is that although the automotive glass is static during the detection process, the detection module needs to move according to the external contour of the product, which is prone to errors in the process. It has high requirements for the clamping accuracy of the glass and the movement accuracy of the detection module. The moving detection module also has the problem of difficulty in focusing. The entire inspection process is cumbersome and time-consuming, and the inspection quality cannot be guaranteed. The disadvantage of the second solution is that the automotive glass must first be placed on a customized mobile carrier or platform to ensure the motion control accuracy of the glass. At the same time, it also has strict requirements on the size specifications of the glass, the placement angle, and the distance between the edge and the detection module. In addition, it cannot be connected to the glass production line, and online automated detection cannot be achieved, resulting in low detection efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a universal glass edge detection device and a universal glass edge detection method, which can perform high-precision, efficient and automated edge focus detection on glasses of different specifications during movement.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: A glass edge detection device, comprising: The frame is provided with a glass conveying module, an electronic cam main shaft and an electronic cam slave shaft, as well as a shape detection module and a glass edge detection module sequentially arranged along the feeding direction of the glass conveying module, and the electronic cam main shaft is connected to the glass conveying module; The control system is used to receive information sent by the electronic cam main shaft and the surface detection module and generate a cam table. The electronic cam slave shaft adjusts the detection focal length of the glass edge detection module according to the cam table.

[0007] Furthermore, the electronic cam main shaft is a conveying motor with an electronic cam functional module, and the electronic cam slave shaft is an adjusting motor with an electronic cam functional module.

[0008] Furthermore, the glass conveying module conveys the glass along a plane, the viewing angle and illumination direction of the shape detection module are perpendicular to the plane, and the viewing angle and illumination direction of the glass edge detection module are parallel to the plane.

[0009] Furthermore, the glass edge detection module includes an edge detection camera assembly, a fixed spectrometer and a movable spectrometer. The edge detection camera assembly and the fixed spectrometer are arranged on a frame, and the movable spectrometer is movably arranged on the frame. The electronic cam is connected to the movable spectrometer from the shaft. The fixed spectrometer and the movable spectrometer are used to adjust the viewing angle and lighting direction of the edge detection camera assembly.

[0010] Furthermore, a servo screw module is provided on the frame, and the electronic cam slave shaft is connected to the movable spectroscope through the servo screw module.

[0011] Furthermore, a set of electronic cam slave shafts are respectively arranged on both sides of the frame perpendicular to the feeding direction of the glass conveying module, and a set of glass edge detection modules are respectively arranged on both sides of the frame perpendicular to the feeding direction of the glass conveying module.

[0012] Furthermore, a feeding induction sensor is provided on the frame and is arranged toward the glass conveying module, and the control system is connected to the feeding induction sensor.

[0013] The present invention also provides a glass edge detection method, in which an electronic cam main shaft controls the glass conveying speed, performs surface detection on the glass being conveyed to obtain glass edge coordinate information, generates a cam table based on the glass conveying speed and the glass edge coordinate information, and the electronic cam slave shaft adjusts the glass edge detection focal length based on the cam table.

[0014] Furthermore, the electronic cam main shaft is used to control the glass conveying module to convey the glass at the glass conveying speed, and the shape detection module is used to detect and obtain the glass edge coordinate information relative to the glass conveying module. The electronic cam slave shaft adjusts the detection coordinates of the glass edge detection module relative to the glass conveying module according to the cam table generated according to the glass conveying speed and the glass edge coordinate information, so that the glass edge detection module automatically focuses on the edge of the glass being conveyed.

[0015] Furthermore, a cam coupling interval is preset. When the glass enters the cam coupling interval, the electronic cam main shaft, glass conveying module, shape surface detection module, electronic cam slave shaft and glass edge detection module are coupled. When the glass leaves the cam coupling interval, the electronic cam main shaft, glass conveying module, shape surface detection module, electronic cam slave shaft and glass edge detection module are decoupled.

[0016] The beneficial effects of the present invention are: providing a universal glass edge detection device and method, capable of achieving compatibility with a variety of automotive glass sizes and shapes with a single device, overcoming the shortcomings of previous fixed-type detection products, and being flexible, convenient, and highly compatible. The device can achieve fully automated operation and intelligent operation. After the device is started, the glass is conveyed at a preset speed under the control of an electronic cam main shaft. The glass is first subjected to surface inspection to determine the edge shape of the glass, thereby determining the position coordinates of the glass edge to be inspected during the conveying process. A control cam table is then generated based on the glass conveying speed and the glass edge coordinate information. The cam table serves as the basis for adjusting the focal length of the glass edge detection. Under the control of the electronic cam slave shaft, automatic focusing and rapid follow-up detection of the glass edge can be achieved. The shape inspection module transmits data based on the glass's shape to the control system. This data is then combined with an electronic cam spindle to control the glass conveyor module's feed speed, generating electronic cam data. After receiving this information from the control system, the electronic cam adjusts the glass edge inspection module's detection focal length based on the cam table, enabling automatic focus of the edge camera. This allows for online, automated inspection of glass edges, significantly improving inspection efficiency and overall production efficiency. This module also reduces labor costs during glass inspection operations and mitigates quality risks. The camera's software control system can easily incorporate a self-learning function that autonomously learns various defects. Combined with advanced algorithms and training, it can identify a wide range of glass defects, including broken edges, scratches, bright spots, burns, dirt, and bubbles. This significantly improves product quality, reduces manual inspection, and reduces worker fatigue and defects caused by eye strain, ultimately reducing costs and increasing efficiency. The device is simple to operate and maintain. After powering on and initializing the device, simply run the inspection software on the industrial computer to enter automatic inspection mode. This eliminates the need for product switching and parameter input, eliminating tedious model changeovers. The universal glass edge detection device and the universal glass edge detection method provided by the present invention can perform edge detection on glass in flow motion, with high detection efficiency and precision, and can meet the requirements of automated detection of glass of different sizes, shapes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a universal glass edge detection device; Figure 2 Schematic diagram of the structure of the surface detection module; Figure 3 This is a front view of a universal glass edge detection device; Figure 4 This is a structural diagram of the glass edge detection module; Figure 5 It is a side view of a universal glass edge detection device; Description of labels: 1. Frame; 2. Glass conveying module; 3. Electronic cam main shaft; 4. Electronic cam slave shaft; 5. Surface detection module; 6. Glass edge detection module; 61. Edge detection camera assembly; 62. Fixed spectrometer; 63. Moving spectrometer; 7. Control system; 8. Servo screw module; 9. Feeding induction sensor. DETAILED DESCRIPTION

[0018] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0019] The present invention provides a universal glass edge detection device and a universal glass edge detection method, which are used in edge defect detection operations of automobile glass.

[0020] Please refer to Figures 1 to 5 As shown, a universal glass edge detection device includes: The frame 1 is provided with a glass conveying module 2, an electronic cam main shaft 3 and an electronic cam slave shaft 4, as well as a shape detection module 5 and a glass edge detection module 6 arranged in sequence along the feeding direction of the glass conveying module 2. The electronic cam main shaft 3 is connected to the glass conveying module 2; The control system 7 is used to receive information sent by the electronic cam main shaft 3 and the surface detection module 5 and generate a cam table. The electronic cam slave shaft 4 adjusts the detection focal length of the glass edge detection module 6 according to the cam table.

[0021] From the above description, it can be seen that the beneficial effects of the present invention are: the shape detection module 5 can send data to the control system 7 according to the shape of the glass, and combine with the electronic cam main shaft 3 to control the feeding speed of the glass conveying module 2 to generate electronic cam data. After the electronic cam receives the information sent by the control system 7 from the shaft 4, it adjusts the detection focal length of the glass edge detection module 6 according to the cam table, thereby realizing automatic focusing of the edge camera and realizing online automatic detection of the glass edge, which greatly improves the detection efficiency and improves the overall production efficiency.

[0022] In an optional embodiment, the electronic cam main shaft 3 is a conveying motor with an electronic cam functional module, and the electronic cam slave shaft 4 is an adjusting motor with an electronic cam functional module.

[0023] As can be seen from the above description, the electronic cam function of the conveyor motor is used to set the servo as the master axis, and the adjustment motor equipped with the glass edge detection module 6 is set as the slave axis. Through the mutual coupling of the master and slave axes, the glass edge detection module 6 can automatically focus. The adjustment motor with electronic cam function obtains the motion trajectory of the glass edge detection module 6 based on the electronic cam data generated by the automotive glass surface detection module 5 in the control system 7. When the adjustment motor receives the coupling start command, it controls the glass edge detection module 6 to automatically focus on the glass edge.

[0024] In an optional embodiment, the glass conveying module 2 conveys glass along a plane, the viewing angle and illumination direction of the shape detection module 5 are perpendicular to the plane, and the viewing angle and illumination direction of the glass edge detection module 6 are parallel to the plane.

[0025] From the above description, it can be seen that the detection area of ​​the shape detection module 5 is perpendicular to the plane where the glass is conveyed, so that the coordinate information of the glass edge can be obtained completely and accurately. The viewing angle and lighting direction of the glass edge detection module 6 are toward the glass above the conveying plane, so as to fully detect the edge of the glass.

[0026] In an optional embodiment, the glass edge detection module 6 includes an edge detection camera assembly 61, a fixed beam splitter 62 and a movable beam splitter 63. The edge detection camera assembly 61 and the fixed beam splitter 62 are arranged on the frame 1, and the movable beam splitter 63 is movably arranged on the frame 1. The electronic cam is connected to the movable beam splitter 63 from the shaft 4. The fixed beam splitter 62 and the movable beam splitter 63 are used to adjust the viewing angle and lighting direction of the edge detection camera assembly 61.

[0027] From the above description, it can be seen that the viewing angle and light of the edge detection camera assembly 61 are refracted through the fixed beam splitter 62 and the movable beam splitter 63 in turn, so as to be aligned with the edge of the glass. The electronic cam is used to control the movable beam splitter 63 to move on the frame 1 from the axis 4, thereby changing the length of the detection light path from the edge detection camera assembly 61 to the edge of the glass, and then adjusting the focal length of the edge detection camera assembly 61, thereby avoiding the shortcomings of blurred images, poor quality, and high camera misjudgment rate caused by camera movement.

[0028] In an optional embodiment, a servo screw module 8 is provided on the frame 1 , and the electronic cam slave shaft 4 is connected to the movable beam splitter 63 through the servo screw module 8 .

[0029] From the above description, it can be seen that the movable beam splitter 63 is slidably set on the servo screw module 8, and the servo screw module 8 adjusts the position of the movable beam splitter 63 under the control of the electronic cam, thereby achieving smooth focusing of the glass edge detection module 6.

[0030] In an optional embodiment, a group of electronic cam slave shafts 4 are arranged on both sides of the frame 1 along the feeding direction perpendicular to the glass conveying module 2, and a group of glass edge detection modules 6 are arranged on both sides of the frame 1 along the feeding direction perpendicular to the glass conveying module 2.

[0031] From the above description, it can be seen that the electronic cams on both sides of the shaft 4 respectively control a group of glass edge detection modules 6. The two groups of glass edge detection modules 6 simultaneously perform edge detection on two opposite sides of the glass, and the detection efficiency is high.

[0032] In an optional embodiment, a feeding induction sensor 9 is provided on the frame 1 and is arranged toward the glass conveying module 2 , and the control system 7 is connected to the feeding induction sensor 9 .

[0033] From the above description, it can be seen that by presetting the edge detection interval on the glass conveying module 2, the feeding sensing sensor 9 is used to monitor whether there is glass passing through. When the glass passes through the feeding sensing sensor 9, it is determined to start detecting the glass. After the glass flows out of the cam coupling interval, each component is decoupled and reset, waiting for the next piece of glass to be inspected.

[0034] Please refer to Figures 1 to 5 As shown, a universal glass edge detection method of the present invention is provided, in which the electronic cam main shaft 3 controls the glass conveying speed, performs surface detection on the glass being conveyed to obtain the glass edge coordinate information, generates a cam table according to the glass conveying speed and the glass edge coordinate information, and the electronic cam slave shaft 4 adjusts the glass edge detection focal length according to the cam table.

[0035] As can be seen from the above description, the beneficial effects of the present invention are: providing a universal glass edge detection device and method, capable of supporting a variety of automotive glass sizes and shapes with a single device, overcoming the shortcomings of previous fixed-type detection methods, and offering flexibility, convenience, and high compatibility. The device is capable of fully automated operation and intelligent operation. After the device is started, the glass is conveyed at a preset speed under the control of the electronic cam main shaft 3. The glass is first subjected to a surface inspection to determine the edge shape of the glass, thereby determining the position coordinates of the glass edge to be inspected during the conveying process. A control cam table is then generated based on the glass conveying speed and the glass edge coordinate information. The cam table serves as the basis for adjusting the focal length of the glass edge detection. Under the control of the electronic cam slave shaft 4, automatic focusing and rapid follow-up detection of the glass edge can be achieved.

[0036] In an optional embodiment, the electronic cam main shaft 3 is used to control the glass conveying module 2 to convey the glass at the glass conveying speed, and the shape detection module 5 is used to detect and obtain the glass edge coordinate information relative to the glass conveying module 2. The electronic cam slave shaft 4 adjusts the detection coordinates of the glass edge detection module 6 relative to the glass conveying module 2 according to the cam table generated according to the glass conveying speed and the glass edge coordinate information, so that the glass edge detection module 6 automatically focuses on the edge of the glass being conveyed.

[0037] From the above description, it can be seen that the glass conveying speed of the glass conveying module 2 is controlled according to the size, shape and specifications of the glass. For example, for glass with curved edges, the glass conveying speed needs to be reduced to ensure detection accuracy. The coordinate information of the glass edge is obtained to determine the change in the distance between the glass edge and the glass edge detection module 6 during the conveying process. The glass edge detection module 6 is controlled to automatically focus on the edge of the glass according to the cam table generated by the two to ensure detection accuracy.

[0038] In an optional embodiment, a cam coupling interval is preset. When the glass enters the cam coupling interval, the electronic cam main shaft 3, the glass conveying module 2, the shape and surface detection module 5, the electronic cam slave shaft 4 and the glass edge detection module 6 are coupled. When the glass leaves the cam coupling interval, the electronic cam main shaft 3, the glass conveying module 2, the shape and surface detection module 5, the electronic cam slave shaft 4 and the glass edge detection module 6 are decoupled.

[0039] From the above description, it can be seen that the cam coupling interval is the edge detection interval. When the glass is transported on the assembly line and enters the edge detection interval, it is determined that the glass will be inspected. After the glass flows out of the cam coupling interval, each component is decoupled and reset, waiting for the next piece of glass to be inspected.

[0040] Please refer to Figures 1 to 5 As shown, the first embodiment of the present invention is: a universal glass edge detection device, comprising: The frame 1 is provided with a glass conveying module 2, an electronic cam main shaft 3 and an electronic cam slave shaft 4, as well as a shape detection module 5 and a glass edge detection module 6 arranged in sequence along the feeding direction of the glass conveying module 2. The electronic cam main shaft 3 is connected to the glass conveying module 2; The control system 7 is used to control the operation of the entire inspection machine, including an inspection host for storing, processing, and interacting with product information, and a controller for driving various actuators such as cameras, light sources, robotic arms, and mobile modules. The inspection host is used to receive information sent by the electronic cam main shaft 3 and the surface inspection module 5 and generate a cam table. The controller controls the electronic cam slave shaft 4 to adjust the detection focal length of the glass edge inspection module 6 according to the cam table.

[0041] The electronic cam main shaft 3 is a conveying motor with an electronic cam functional module, and the electronic cam slave shaft 4 is an adjustment motor with an electronic cam functional module. The glass conveying module 2 conveys glass along a plane. The viewing angle and lighting direction of the shape detection module 5 are perpendicular to the plane, and the viewing angle and lighting direction of the glass edge detection module 6 are parallel to the plane. The glass conveying module 2 is a rubber roller transmission mechanism, which includes two or more rubber rollers and a transmission assembly connecting two adjacent rubber rollers. The shape detection module 5 includes an upper surface detection camera and light source assembly and a lower surface detection camera and light source assembly located on the upper and lower sides of the glass conveying module 2. The camera is perpendicular to the glass conveying module 2, and the camera's scanning area is perpendicular to the glass to ensure that both the upper and lower surfaces of the glass can be detected. The illumination angle of the light source is projected through the angle adjustment mechanism to enable the upper and lower array cameras to fully capture the glass. The glass edge detection module 6 includes an edge detection camera assembly 61, a fixed beam splitter 62, and a movable beam splitter 63. The edge detection camera assembly 61 and the fixed beam splitter 62 are mounted on the frame 1, while the movable beam splitter 63 is movably mounted on the frame 1. The electronic cam shaft 4 is connected to the movable beam splitter 63. The fixed beam splitter 62 and the movable beam splitter 63 are used to adjust the viewing angle and illumination direction of the edge detection camera assembly 61. The edge detection camera assembly 61 includes a fixed projection light source for projecting a special stripe or dot pattern onto the edge of the glass, a line scan detection camera for capturing the imaging effect of the pattern projected onto the edge of the automotive glass, a fan for cooling the camera, and a fixed bracket for mounting components. The movable beam splitter 63 has a protective cover to maintain the stability of the mirror surface and prevent external dust contamination. A servo screw module 8 is provided on the frame 1, and the electronic cam shaft 4 is connected to the movable beam splitter 63 via the servo screw module 8. When the adjustment motor receives the coupling start command, it drives the servo screw module 8 to adjust the position of the movable beam splitter 63, thereby enabling the camera lens to automatically focus on the edge of the automotive glass. A set of electronic cam shafts 4 are installed on each side of the frame 1, perpendicular to the feed direction of the glass conveyor module 2. A set of glass edge detection modules 6 are also installed on each side of the frame 1, perpendicular to the feed direction of the glass conveyor module 2. A feed sensor 9 is installed on the frame 1, facing the glass conveyor module 2. The control system 7 is connected to the feed sensor 9.

[0042] The working principle of the universal glass edge detection device of this embodiment is: Step S1, equipment initialization: the electronic cam slave shaft 4 and the electronic cam main shaft 3 return to their original positions, the trigger signals of the glass edge detection module 6 and the shape detection module 5 are reset, and the equipment discharge and request signals are reset; Step S2: The glass to be inspected flows into the glass conveying module 2, and the electronic cam main shaft 3 rotates at a preset speed; when the glass to be inspected flows through the feeding induction sensor 9, the master-slave axis coupling command is triggered, and a set signal is sent to the surface inspection module 5 at the same time; Step S3: When the cam coupling command is issued, the control system 7 generates a cam table based on the cam data calculated by the host computer. The electronic cam slave shaft 4 is driven according to the cam table. The electronic cam main shaft 3 sends a signal to the glass edge detection module 6 according to the preset border inspection camera trigger interval. Step S4: When the inspected glass flows out of the preset border inspection camera triggering interval, the signal sent to the glass edge inspection module 6 is reset; Step S5: When the inspected glass flows out of the glass conveying module 2, a reset signal is sent to the shape detection module 5, and a decoupling command is sent to the master and slave axes; at the same time, a return to origin position signal is sent to the electronic cam main axis 3; Step S6: After decoupling is completed, the electronic cam slave axis 4 executes the homing command and resets the homing signal of the electronic cam master axis 3 at the same time; Step S7: Glass inspection is completed, and the host computer outputs the judgment result according to the defect algorithm. The program execution ends and returns to S101 to wait for the next piece of glass.

[0043] Please refer to Figures 1 to 5 As shown, the first embodiment of the present invention is: a universal glass edge detection method, the electronic cam main shaft 3 controls the glass conveying speed, performs surface detection on the glass being conveyed to obtain the glass edge coordinate information, generates a cam table according to the glass conveying speed and the glass edge coordinate information, and the electronic cam slave shaft 4 adjusts the glass edge detection focal length according to the cam table.

[0044] Please refer to Figures 1 to 5 As shown, the second embodiment of the present invention is based on the first embodiment: the electronic cam main shaft 3 is used to control the glass conveying module 2 to convey the glass at the glass conveying speed, the shape detection module 5 is used to detect and obtain the glass edge coordinate information relative to the glass conveying module 2, and the electronic cam slave shaft 4 adjusts the detection coordinates of the glass edge detection module 6 relative to the glass conveying module 2 according to the cam table generated by the glass conveying speed and the glass edge coordinate information, so that the glass edge detection module 6 automatically focuses on the edge of the glass being conveyed. A cam coupling interval is preset. When the glass enters the cam coupling interval, the electronic cam main shaft 3, the glass conveying module 2, the shape detection module 5, the electronic cam slave shaft 4 and the glass edge detection module 6 are coupled. When the glass leaves the cam coupling interval, the electronic cam main shaft 3, the glass conveying module 2, the shape detection module 5, the electronic cam slave shaft 4 and the glass edge detection module 6 are decoupled.

[0045] In summary, the present invention provides a universal glass edge detection device and method, capable of supporting a variety of automotive glass sizes and shapes with a single device. This overcomes the shortcomings of previous fixed-type detection methods, offering flexibility, convenience, and high compatibility. The device is capable of fully automated operation and intelligent operation. After the device is started, the glass is conveyed at a preset speed under the control of an electronic cam main shaft. The glass is first inspected to determine its edge shape, thereby determining the position coordinates of the glass edge during conveyance. A control cam table is then generated based on the glass conveyance speed and glass edge coordinate information. The cam table serves as the basis for adjusting the glass edge detection focal length. Under the control of the electronic cam slave shaft, automatic focusing and rapid follow-up detection of the glass edge are achieved. The shape inspection module transmits data based on the glass's shape to the control system. This data is then combined with an electronic cam spindle to control the glass conveyor module's feed speed, generating electronic cam data. After receiving this information from the control system, the electronic cam adjusts the glass edge inspection module's detection focal length based on the cam table, enabling automatic focus of the edge camera. This allows for online, automated inspection of glass edges, significantly improving inspection efficiency and overall production efficiency. This module also reduces labor costs during glass inspection operations and mitigates quality risks. The camera's software control system can easily incorporate a self-learning function that autonomously learns various defects. Combined with advanced algorithms and training, it can identify a wide range of glass defects, including broken edges, scratches, bright spots, burns, dirt, and bubbles. This significantly improves product quality, reduces manual inspection, and reduces worker fatigue and defects caused by eye strain, ultimately reducing costs and increasing efficiency. The device is simple to operate and maintain. After powering on and initializing the device, simply run the inspection software on the industrial computer to enter automatic inspection mode. This eliminates the need for product switching and parameter input, eliminating tedious model changeovers. The universal glass edge detection device and the universal glass edge detection method provided by the present invention can perform edge detection on glass in flow motion, with high detection efficiency and precision, and can meet the requirements of automated detection of glass of different sizes, shapes and specifications.

[0046] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A glass edge detection device, characterized in that: include: The frame is provided with a glass conveying module, an electronic cam main shaft and an electronic cam slave shaft, and a shape surface detection module and a glass edge detection module sequentially arranged along the feeding direction of the glass conveying module. The electronic cam main shaft is connected to the glass conveying module to convey the glass at a preset speed. The shape surface detection module is used to obtain the edge shape coordinates of the glass. The control system generates a cam table according to the preset speed and edge shape coordinates, and the electronic cam slave shaft controls the automatic adjustment and follow-up detection of the glass edge detection module according to the cam table.

2. The glass edge detection device according to claim 1, characterized in that: The electronic cam master axis is a conveying motor with an electronic cam function module, and the electronic cam slave axis is a regulating motor with an electronic cam function module.

3. The glass edge detection device according to claim 1, characterized in that: The glass conveying module conveys the glass along a plane, the viewing angle and illumination direction of the shape detection module are perpendicular to the plane, and the viewing angle and illumination direction of the glass edge detection module are parallel to the plane.

4. The universal glass edge detection device according to claim 1, characterized in that: The glass edge detection module includes an edge detection camera assembly, a fixed beam splitter and a movable beam splitter. The edge detection camera assembly and the fixed beam splitter are arranged on a frame, the movable beam splitter is movably arranged on the frame, the electronic cam slave shaft is connected to the movable beam splitter, and the fixed beam splitter and the movable beam splitter are used to adjust the viewing angle and lighting direction of the edge detection camera assembly.

5. The glass edge detection device according to claim 4, characterized in that: A servo screw module is arranged on the frame, and the electronic cam slave shaft is connected with the movable spectroscope through the servo screw module.

6. The glass edge detection device according to claim 1, characterized in that: A set of electronic cam slave shafts are respectively arranged on both sides of the frame along the feeding direction perpendicular to the glass conveying module, and a set of glass edge detection modules are respectively arranged on both sides of the frame along the feeding direction perpendicular to the glass conveying module.

7. The glass edge detection device according to claim 1, characterized in that: A feeding induction sensor is arranged on the frame and is arranged toward the glass conveying module, and the control system is connected with the feeding induction sensor.

8. A glass edge detection method based on the glass edge detection device according to any one of claims 1 to 7, characterized in that: The electronic cam main shaft controls the glass conveying speed, performs surface detection on the conveyed glass to obtain the glass edge coordinate information, generates a cam table based on the glass conveying speed and the glass edge coordinate information, and the electronic cam slave shaft adjusts the glass edge detection focal length based on the cam table.

9. The glass edge detection method according to claim 8, characterized in that: The electronic cam main shaft is used to control the glass conveying module to convey the glass at the glass conveying speed, and the shape detection module is used to detect and obtain the glass edge coordinate information relative to the glass conveying module. The electronic cam slave shaft adjusts the detection coordinates of the glass edge detection module relative to the glass conveying module according to the cam table generated according to the glass conveying speed and the glass edge coordinate information, so that the glass edge detection module automatically focuses on the edge of the glass being conveyed.

10. The glass edge detection method according to claim 9, characterized in that: A cam coupling interval is preset. When the glass enters the cam coupling interval, the electronic cam main shaft, glass conveying module, shape and surface detection module, electronic cam slave shaft and glass edge detection module are coupled. When the glass leaves the cam coupling interval, the electronic cam main shaft, glass conveying module, shape and surface detection module, electronic cam slave shaft and glass edge detection module are decoupled.

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