Optical rapid measurement equipment for large-format plate

Abstract

The utility model discloses optical rapid measurement equipment for a large-format plate. The optical rapid measurement equipment comprises a rack, a motion guide rail platform, a bearing platform and a gantry motion module, the bearing platform and the movement guide rail platforms are arranged on the upper surface of the rack, the movement guide rail platforms are located on the two sides of the bearing platform, the bearing platform is used for placing a plate to be detected, the gantry movement module is movably erected above the bearing platform along the movement guide rail platforms, and the gantry movement module is provided with a linear scanning assembly for carrying out linear scanning collection on the bearing platform. The measuring assembly is moved to any position of the bearing platform to carry out area array collection on corner points of the to-be-detected plate, the product model and product contour peripheral corner point information of the to-be-detected plate are obtained through the line scanning assembly, and then image collection is carried out on each corner point position through the measuring assembly to obtain the specific size of the to-be-detected plate. According to the utility model, automatic detection of the size of a large-format plate can be realized, and rapid remodeling detection of diversified products can be satisfied.

Description

Technical Field

[0001] The utility model relates to optical rapid measuring equipment for large-format plate materials, belonging to the automatic detection technology for plate sizes. Background Art

[0002] Dimensional accuracy is a crucial metric in the manufacturing of large-format sheet materials. Currently, the dimensional measurement of large-format sheet materials in industrial production still relies on manual dimensioning using tools such as calipers. Large-format sheet materials often measure over one meter in length and width, with some even reaching several meters. Manual dimensioning requires significant manpower and is associated with low measurement efficiency, high costs, erroneous readings, irregular measurements, and material damage.

[0003] With the development of visual image acquisition technology, some companies use cameras to assist in dimensional measurement, but the following problems still exist:

[0004] 1. Fixed industrial cameras have a small measurement range and cannot meet large size specifications, making them difficult to adapt to inspection needs;

[0005] 2. Single-machine offline equipment operation cannot be automatically connected, and the single-chip measurement time is long;

[0006] 3. The development of large-scale equipment is difficult, and the cumulative errors such as mechanical error, visual error, calibration error, and control error are large;

[0007] 4. It does not have the functions of independent calibration, feature capture, and independent measurement plan formulation, and cannot meet the needs of rapid changeover of small-variety and diversified products. Utility Model Content

[0008] The technical problem solved by the utility model is: to provide a large-format plate optical fast measuring device for the size detection problem in the processing and production of large-format plate.

[0009] The utility model is implemented by the following technical solutions:

[0010] A large-format plate optical rapid measurement device includes a frame 1, a motion guide platform 2, a supporting platform 3, and a gantry motion module 5; the supporting platform 3 and the motion guide platform 2 are arranged on the upper surface of the frame 1, the motion guide platform 2 is located on both sides of the supporting platform 3, the supporting platform 3 is used for placing the plate to be measured, the gantry motion module 5 is moved along the motion guide platform 2 and is erected above the supporting platform 3, the gantry motion module 5 is provided with a line scanning component 6 for performing line scanning on the supporting platform, and a measuring component 7 that moves to any position of the supporting platform to perform area array acquisition on the corner points of the plate to be measured, the product model and product outline peripheral corner point information of the plate to be measured are obtained through the line scanning component, and then the specific size of the plate to be measured is obtained by performing image acquisition on each corner point position through the measuring component.

[0011] In the large-format plate optical rapid measurement device of the present invention, further, the rack 1 is composed of at least two groups of sub-racks, adjacent sub-rack brackets are fixedly connected by a rack connecting plate 13, and casters 15 and foot cups 16 are provided at the bottom of each sub-rack.

[0012] In a large-format plate optical rapid measurement device of the present invention, further, the motion guide platform 2 includes two marble bars 21 arranged in parallel on both sides of the supporting platform, and the upper surface of the frame 1 is provided with a marble support 18 for supporting and fixing the marble bars, and a plurality of marble top blocks 17 for adjusting the flatness of the marble bars.

[0013] In the large-format plate optical rapid measurement device of the present invention, further, the supporting platform 3 is a transparent platform, and a light source system for shooting and collecting images of an auxiliary line scanning component 6 and a measuring component 7 is provided at the bottom thereof.

[0014] In the optical rapid measurement device for large-format plate materials of the present invention, further, the supporting platform 3 is spliced with tempered glass 35 , and the tempered glass 35 is fixed on the frame between the motion guide rail platforms through the sealing plate 31 .

[0015] In a large-format plate optical rapid measurement device of the present invention, further, the light source system adopts a mobile light source, and the mobile light source is a strip light source corresponding to the width of the supporting platform between the moving guide rail platforms. It also includes a linear guide rail 37 and a synchronous belt mechanism. The linear guide rail 37 is arranged in the same direction as the moving guide rail platform at the bottom of both sides of the supporting platform 3, and the two ends of the strip light source are connected to the linear slider 38 of the linear guide rail 37. The synchronous belt mechanism is erected in the same direction as the linear guide rail at the bottom of the supporting platform 3 and is connected to the strip light source. The strip light source is driven to translate along the linear guide rail at the bottom of the supporting platform through the synchronous belt mechanism.

[0016] In a large-format optical rapid measurement device of the present invention, further, the gantry motion module 5 includes an X-axis linear motion module and a Y-axis linear motion module, the X-axis linear motion module is arranged on the motion guide platform along the motion guide platform 2, the Y-axis linear motion module is installed on the moving end of the X-axis linear motion module perpendicular to the motion guide platform, the line scanning component 6 is arranged on the fixed frame of the Y-axis linear motion module, and the X-axis linear motion module drives the line scanning collection of the plate to be detected on the supporting platform, and the measuring component 7 is arranged on the moving end of the Y-axis linear motion module, and is moved to any position of the supporting platform by the X-axis linear motion module and the Y-axis linear motion module to perform area array collection on the corner points of the plate to be detected.

[0017] In a large-format plate optical rapid measurement device of the present invention, further, the line scanning assembly 6 includes a line scanning camera 64 equipped with a line scanning lens 65, and the line scanning camera 64 is installed on the gantry motion module 5 through a line scanning telescopic element arranged perpendicular to the supporting platform.

[0018] In a large-format plate optical rapid measurement device of the present invention, further, the measuring component 7 includes an area array camera 74 equipped with an area array lens 75, and the area array camera 74 is installed on the gantry motion module 5 through an area array telescopic element arranged perpendicular to the supporting platform.

[0019] In the optical rapid measurement device for large-format plate materials of the present invention, further, both the X-axis linear motion module and the Y-axis linear motion module are provided with a grating ruler for feedback of motion displacement.

[0020] In the optical rapid measurement device for large-format plate materials of the present invention, further, a protective grating 4 surrounding the entire device is provided on the periphery of the frame 1 .

[0021] The utility model adopts the above technical solution to achieve the following beneficial effects:

[0022] 1) The utility model combines a line scanning component with a measuring component. The gantry motion module drives the line scanning component to collect a complete image of the plate to be inspected on the supporting platform. The corner position information of the outer contour of the plate to be inspected is obtained through industrial-grade image computer processing and calculation. The product model is automatically matched through the preliminary line scanning to provide shooting points for the area array camera. The gantry motion module then moves the measuring component to the corner position of the plate to be inspected to collect image information of each corner point. The specific size of the measured plate is obtained through industrial image computer processing and calculation. In the face of the diverse models of large-format plate products, the utility model can achieve rapid changeover detection of different models of plate products by establishing a model database of each model of plate products.

[0023] 2) In the size detection of large-format plate materials, the present invention adopts a modular splicing frame and carries marble bars as a motion guide platform. Compared with the traditional one-piece welded frame and high-strength steel platform, the flatness of the equipment platform is improved. The parallelism of the marble bars of the supporting platform is adjusted at multiple points. The high-strength mechanical properties of the marble motion guide platform can reduce the impact of the plates to be detected during the loading and unloading process. At the same time, the vibration reduction and vibration absorption properties of marble can reduce the error caused by vibration during the size detection process, thereby realizing large-scale and high-precision detection of large-format plate products.

[0024] 3) The gantry motion module of the present invention uses a grating scale feedback control mechanism to ensure that the linear module maintains high stability, high precision and repeatable positioning accuracy throughout the entire stroke.

[0025] To sum up, the large-format plate optical rapid measurement equipment provided by the utility model realizes the automatic detection of the size of large-format plate, can automatically calibrate the model and shape contour of the plate product to be detected, can meet the rapid changeover detection of diversified products, and solves the problems of low efficiency, high cost and low measurement accuracy in manual measurement of the size of large-format plate products.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a three-dimensional schematic diagram of a large-format plate optical rapid measurement device according to an embodiment.

[0028] Figure 2 The figure is a front view of a large-format plate optical rapid measurement device according to an embodiment.

[0029] Figure 3 Schematic diagram of the installation of the rack and motion guide platform in the embodiment.

[0030] Figure 4 Schematic diagram of the structure of the supporting platform in the embodiment.

[0031] Figure 5 It is a side view of the supporting platform in the embodiment.

[0032] Figure 6 Schematic diagram of the protective grating in the embodiment.

[0033] Figure 7 It is a front view of the gantry motion module in the embodiment.

[0034] Figure 8 It is a side view of the gantry motion module in the embodiment.

[0035] Figure 9Schematic diagram of the line scanning component in the embodiment.

[0036] Figure 10 Schematic diagram of the measurement component in the embodiment.

[0037] Figure 11 Schematic diagram of the control console in the embodiment.

[0038] Figure 12 The present invention is a flowchart of automatic measurement of a large-format plate optical rapid measurement device according to an embodiment.

[0039] Numbers in the figure: 1-frame, 11-main frame, 12-lower frame, 13-frame connecting plate, 14-frame welding plate, 15-castor, 16-foot cup, 17-marble top block, 18-marble support, 19-button box mounting sheet metal, 110-button box;

[0040] 2-motion guide platform, 21-marble stone;

[0041] 3-supporting platform, 31-sealing plate, 32-support block, 33-guide rail beam, 34-glass beam, 35-tempered glass, 36-side beam, 37-linear guide rail, 38-linear slider, 39-light source support plate, 310-light source, 311-driving pulley frame, 312-driven pulley frame, 313-light source motor, 314-driving pulley, 315-driven pulley, 316-synchronous belt, 317-clamping plate, 318-position sensor, 319-scanning film;

[0042] 4-protective grating, 41-grating bar, 42-grating mounting bracket, 43-first grating mounting sheet metal, 44-second grating mounting sheet metal;

[0043] 5-Gantry motion module, 51-X-axis linear motion motor, 52-X-axis linear slide, 53-X-axis connecting plate, 54-first gantry vertical plate, 55-second gantry vertical plate, 56-Y-axis motor bracket, 57-Y-axis linear motor, 511-single-type warning light;

[0044] 6- Line scan assembly, 61- Line scan assembly mounting plate, 62- Line scan rodless cylinder, 63- Line scan camera mounting plate, 64- Line scan camera, 65- Line scan lens;

[0045] 7- measurement assembly, 71- measurement assembly mounting plate, 72- area array rodless cylinder, 73- area array camera mounting plate, 74- area array camera, 75- area array lens;

[0046] 8- console, 81- console housing, 82- industrial-grade image processing computer, 83- display, 84- operation button, 85- industrial computer, 86- foot cup, 87- caster, 88- fixed connecting plate. DETAILED DESCRIPTION

[0047] Example

[0048] See also Figure 1 and Figure 2 , the figure shows a specific implementation scheme of a large-format optical rapid measurement device for plate materials of the present invention, which specifically includes a frame 1, a motion guide platform 2, a supporting platform 3, a protective grating 4, a gantry motion module 5, a line scanning component 6, a measuring component 7 and a control console 8. Among them, the supporting platform 3 and the motion guide platform 2 are arranged on the upper surface of the frame 1 as the fixed main structure of the device, the motion guide platform 2 is located on both sides of the supporting platform 3, the middle supporting platform 3 is used for placing the plate to be detected, and the motion guide platforms 2 on both sides are used to set the motion detection structure of the device, the gantry motion module 5 moves along the motion guide platform 2 and is erected above the supporting platform 3, the line scanning component 6 and the measuring component 7 are respectively arranged on the gantry motion module 5, the line scanning component 6 performs line scanning acquisition on the supporting platform with the gantry motion module 5 to obtain the product model and product outline peripheral corner point information of the plate to be detected on the supporting platform, the measuring component 7 moves with the gantry motion module 5 to any position of the supporting platform to perform area array acquisition on the corner points of the plate to be detected, and the specific size of the plate to be detected is obtained through image processing technology. A protective grating 4 is arranged around the periphery of the frame 1 to protect the automatic measurement process of the equipment. A console 8 is arranged on one side of the frame, on which the control unit of the equipment is integrated.

[0049] The following is a detailed description of various parts of the large-format plate optical rapid measurement device of this embodiment.

[0050] like Figure 3 As shown, the rack 1 in this embodiment is composed of four sub-racks, namely a main rack 11 and three lower racks 12. Adjacent sub-racks are connected by four rack connecting plates 13 and fixed by bolts. The main rack 11 is set at the end of the rack. The main rack 11 has a control cabinet, which is used to store controllers of various actuators of the equipment. Two doors are provided on the side of the cabinet to facilitate maintenance personnel to inspect and replace the controllers. Two cooling fans and a transfer switch are provided at the front and rear ends respectively. Four rack welding plates 14 are welded to the four corners of the bottom of each sub-rack. The rack welding plates 14 are used to connect casters 15 and foot cups 16. The rack 1 formed by connecting the four sub-racks forms two eight-meter-long beams along the length direction. Several marble top blocks 17 are welded and fixed at equal intervals on both sides of the beams. Several marble supports 18 are arranged above the beams. A button box mounting sheet metal 19 is fixed to the rear of the rack 1 along the length direction by bolts. The button box mounting sheet metal 19 is connected to the button box 110 with screws above. The button box 110 is used to set the equipment control and emergency stop buttons. Among them,

[0051] The design of the rack 1 provides a stable and precise support for the motion guide platform 2 and the support platform 3. The rack 1 of this embodiment, through its modular design of assembled sub-racks, subdivides the flatness error of the overall rack equipment. Multiple foot cups 16 beneath each rack allow for block-by-block and sub-divided adjustment of the rack 1's flatness, ensuring that the required flatness is met after the rack 1 is assembled. This modular rack design facilitates installation and transportation of the entire equipment, and if parts of the rack 1 are damaged later, modules can be replaced to reduce maintenance costs.

[0052] The motion guide platform 2 includes two marble blocks 21 arranged in parallel on both sides of the support platform. The upper surface of the frame 1 is provided with marble supports 18 for supporting and fixing the marble blocks, and a plurality of marble top blocks 17 for adjusting the flatness of the marble blocks.

[0053] The motion guide platform 2 includes two marble bars 21, which are arranged parallel to each other on both sides of the supporting platform 3 along the length direction of the frame. The marble bars 21 are directly fixedly connected to the marble support 18 on the frame 1. There are twenty-four marble top blocks 17 on the frame 1 under each marble block. The position accuracy of the marble top blocks can be adjusted from the marble top blocks 17 at multiple points.

[0054] The presence of the marble motion guide platform 2 provides a platform with high stability and precise positioning. While ensuring the flatness of the platform, fine-tuning can be performed on some areas of the marble, thereby continuously correcting the parallelism of the entire marble bar 21. The high-strength mechanical properties of marble can reduce the collisions and scratches caused by the impact on the surface of the product to be inspected during the loading and unloading process. The upper surface of the marble bar 21 is in direct contact with the X-axis linear motor 51 of the gantry motion module 5. The X-axis motion motor is prone to vibration during high-speed movement. The vibration reduction and vibration absorption properties of marble can reduce the errors caused by vibration during the dimensional inspection process.

[0055] like Figure 4 and Figure 5 As shown, the supporting platform 3 of this embodiment includes a cover plate 31, a support block 32, a guide rail beam 33, a glass beam 34, a tempered glass 35, a measuring beam 36, a linear guide 37, a linear slider 38, a light source support plate 39, a light source 310, a driving pulley frame 311, a driven pulley frame 312, a light source motor 313, a driving pulley 314, a driven pulley 315, a timing belt 316, a clamping plate 317, a position sensor 318, and a scanning film 319. It is mainly divided into two parts: a transparent platform and a mobile light source. The transparent platform is used, and an auxiliary line scanning component 6 and a measuring component 7 are set at the bottom to capture and collect the mobile light source system.

[0056] The transparent platform portion of the supporting platform 3 uses a cover plate 31 as a base. Five cover plates 31 are spliced together to serve as the basic support for the mobile light source. The cover plates 31 are fixed between the upper end surface of the frame 1 and the moving guide rail platform 2 by bolts. Multiple L-shaped support blocks 32 are evenly arranged on both sides of the cover plate 31 along the length of the frame. The support blocks 32 are connected to the guide rail crossbeam 33 at the bottom and to the glass crossbeam 34 at the top. Five pieces of tempered glass 35 are spliced and arranged on the glass crossbeam 34 along the length of the frame. The tempered glass 35 is spliced to form the transparent platform portion. The cross sections of the tempered glass 35 on both sides are supported by side crossbeams 36. Linear guide rails 37 in the same direction as the moving guide rail platform are connected by screws above the guide rail crossbeams 33 on both sides. The linear guide rails 37 move in conjunction with linear sliders 38 above. A light source support plate 39 is straddled and fixed with bolts, supporting the linear sliders 38 on the two linear guide rails 37. The light source 310 of the mobile light source portion is fixed to the light source support plate 39 by screws.

[0057] A driving wheel frame 311 and a driven wheel frame 312 are arranged at both ends of the supporting platform 3. The light source motor 313 is connected to a reducer and installed in the middle of the driving wheel frame 311. The motor output shaft is connected to the driving pulley 314. A driven pulley 315 is installed in the middle of the driven wheel frame 312 through a driven shaft. The two pulleys are driven by a synchronous belt 316. The synchronous belt 316 is fixedly connected to the light source support plate 39 through a clamping plate 317, driving the light source 310 to move horizontally along the length of the frame. A sweeping piece 319 is fixed to the light source support plate 39 by screws. The sweeping piece 319 cooperates with a position sensor 318. Multiple position sensors 318 are installed on the closing plate 31 along the transmission direction of the synchronous belt 316. The sweeping piece 319 triggers the position sensor at the corresponding position to detect the moving position of the light source 310.

[0058] The supporting platform 3 provides direct support for the plate to be inspected through the transparent platform part, and provides uniform and high-intensity lighting conditions through the moving light source to ensure the acquisition of clear and accurate image information. The light source 310 is a rectangular light source corresponding to the width of the tempered glass between the moving guide platform 2. In the embodiment, the size of the light source 310 is 1112×192mm, and the length direction of the light source is arranged along the width direction of the frame 1. The light source is as a whole under the tempered glass 35 and can be driven by the synchronous belt 316 to move horizontally along the length direction of the frame 1. The backlight technology can provide high contrast during the imaging process of the line scanning component and the detection component, making the image edges and contours clearer, which is easy to analyze by the subsequent image processing algorithm.

[0059] See also Figure 6The protective grating 4 in this embodiment is composed of four grating bar protection points arranged around the entire frame. At each grating bar protection point, two grating bars 41 are installed on a grating mounting bracket 42 by fastening screws. The grating mounting bracket 42 is fixedly connected to the frame through a first grating mounting sheet metal 43 and a second mounting sheet metal 44.

[0060] The protective light barrier 4 is used to detect and alarm foreign objects that appear in the working area of the equipment. The protective light barrier 4 has a high-speed response capability and can detect intruding objects in a timely manner, effectively preventing operators from accidentally entering the danger zone and ensuring that the operation process complies with the most stringent safety regulations.

[0061] See also Figure 7 and Figure 8 The gantry motion module 5 in this embodiment includes an X-axis linear motion motor 51, an X-axis linear slide 52, an X-axis connecting plate 53, a first gantry vertical plate 54, a second gantry vertical plate 55, a Y-axis motor bracket 56, a Y-axis linear motor 57, and a single-body warning light 511. The gantry motion module 5 is divided into an X-axis linear motion module and a Y-axis linear motion module. The length direction of the frame 1 is the X-axis, and the width direction of the frame 1 is the Y-axis. The movement of the X-axis linear motion module along the length direction of the frame 1 is mainly driven by the X-axis linear motor 51. The two X-axis linear motors 51 are fixed to the marble slab 21 of the motion guide platform by screws. An X-axis grating scale is installed on the side of the X-axis linear motor 51. The X-axis linear slide 52 on the X-axis linear motor 51 is equipped with a reading head for use with the X-axis grating scale to feedback the moving position information of the gantry motion module on the X-axis. The top of the X-axis linear slide 52 is fixedly connected to the X-axis connecting plate 53 by screws. Four gantry vertical plates are connected above the connecting plate 503, namely two first gantry vertical plates 54 and two second gantry vertical plates 55; the gantry vertical plates on both sides provide support for the Y-axis motor bracket 56, and the Y-axis linear motor 57 is fixed to the Y-axis motor bracket 56 along the width direction of the frame by bolts. The movement of the Y-axis linear motion module along the width direction of the frame 1 is driven by the Y-axis linear motor 57. The upper end face of the Y-axis motor bracket 56 is fixed with a grating shield by screws, and a grating scale in the width direction of the frame is installed under the grating shield. A reading head is provided on the Y-axis linear slider on the Y-axis linear motor 57. The grating scale and the reading head are used together to obtain feedback on the moving position information of the gantry motion module on the Y-axis. Since the Y-axis motor bracket of the gantry motion module 5 is the highest position of the device, a single-body warning light 511 is fixed to the upper end face of the Y-axis motor bracket 56 by bolts. The single-body warning light 511 is used in conjunction with the protective grating 4 and the control system around the device. When the protective grating 4 detects the presence of foreign matter or the control system detects an abnormality in the device, the single-body warning light 511 issues an alarm and flashes to prompt.

[0062] The gantry motion module 5 is secured by a bolted connection between the X-axis linear motor 51 and the marble 21. The flatness and parallelism of the marble slabs of the motion guide platform 2 ensure the accuracy of the X-axis linear motor 51, ensuring that the gantry motion module 5 does not twist, deflect, or tilt during motion. The grating scales and readheads flanking the X-axis linear motor 51 and Y-axis linear motor 57, respectively, form a feedback system with the X-axis linear motor 51 and Y-axis linear motor 57, ensuring high precision and repeatability throughout the motor's travel. The X-axis and Y-axis linear motors provide feedback on their travel range via gratings, enabling precise guidance of the measurement assembly. The line scanning component 6 of this embodiment is arranged on the Y-axis motor bracket 56 of the Y-axis linear motion module. The Y-axis motor bracket 56 is a fixed bracket relative to the Y-axis linear slider. The line scanning component on the Y-axis motor bracket 56 is driven only by the X-axis linear motion module to perform line scanning on the plate to be detected on the supporting platform. The measuring component 7 is arranged on the Y-axis linear slider of the Y-axis linear motion module. The Y-axis linear slider is a moving end relative to the Y-axis motor bracket 56. The measuring component is driven by the X-axis linear motion module and the Y-axis linear motion module to any position of the supporting platform to perform area array acquisition on the corner points of the plate to be detected.

[0063] See also Figure 9 The line scan assembly 6 of this embodiment includes a line scan camera 64 equipped with a line scan lens 65. The line scan camera 64 is mounted on the gantry motion module 5 via a line scan telescopic element arranged perpendicular to the supporting platform. Specifically, the line scan assembly 6 includes a line scan assembly mounting plate 61, a line scan rodless cylinder 62, a line scan camera mounting plate 63, a line scan camera 64, and a line scan lens 65. The front end of the line scan camera 64 is connected to the line scan lens 65, and the lower end is mounted on the line scan camera mounting plate 63. The line scan camera mounting plate 63 and the slider of the line scan rodless cylinder 62 are connected together by bolts. The line scan rodless cylinder 62 is connected to the line scan assembly mounting plate 61 by screws. The line scan rodless cylinder 62 serves as a line scan telescopic element to fine-tune the focal length of the line scan camera for line scanning the supporting platform. The entire line scan assembly 6 is fixed to the left end face of the Y-axis motor bracket 56 via the line scan assembly mounting plate 61.

[0064] See also Figure 10The measurement assembly 7 of this embodiment includes an area array camera 74 equipped with an area array lens 75. The area array camera 74 is mounted on the gantry motion module 5 via an area array telescopic element arranged perpendicular to the supporting platform. Specifically, the measurement assembly 7 includes a measurement assembly mounting plate 71, an area array rodless cylinder 72, an area array camera mounting plate 73, the area array camera 74, and the area array lens 75. The front end of the area array camera 74 is connected to the area array lens 75, and the lower end is mounted on the area array camera mounting plate 73. The area array camera mounting plate 73 is connected to the slider of the area array rodless cylinder 72 by bolts, and the area array rodless cylinder 72 is connected to the measurement assembly mounting plate 71 by screws. The entire measurement assembly 7 is fixed to the Y-axis linear slider of the Y-axis linear motor 507 via the measurement assembly mounting plate 71.

[0065] The line scanning component 6 and the measuring component 7 are both installed on the gantry motion module 5. The line scanning component 6 is the basis for determining the model of the product to be inspected during the inspection process, and the measuring component 7 is the basis for achieving high-precision, high-resolution two-dimensional image acquisition and dimensional measurement. Through the cooperation of the two visual components, the data obtained by the line scanning component 6 is converted into corner point position data captured by the measuring component 8, optimizing the large-format dimensional inspection process into two steps, thereby improving inspection accuracy.

[0066] See also Figure 11 The large-format plate optical rapid measurement device of this embodiment is also equipped with a console 8, which includes a console housing 81, an industrial-grade image processing computer 82, a display 83, operating buttons 84, and an industrial computer 85. The console housing 81 is divided into two parts, upper and lower. The industrial-grade image processing computer 82 is mounted in the lower part of the console housing 81 and communicates with the cameras of the line scanning assembly and the measurement assembly to process the image data collected by the line scanning assembly 6 and the measurement assembly 7. The display 83 is mounted in the upper part of the console housing 81. The operating buttons 84 are mounted to the right of the display 83 and include a start button, a stop button, a reset button, and an emergency stop switch. The industrial computer 85 is mounted inside the console housing 81 and interconnects with the industrial-grade image processing computer 82. It converts the control commands processed by the computer into control signals and sends them to the corresponding actuators. Four foot cups 86 are installed at the bottom of the console 8 for adjusting the height of the console 8. Four casters 87 are also installed to facilitate the movement of the console. Two fixed connecting plates 88 are installed on both sides of the console 8 to connect the console 8 to the frame 1.

[0067] Taking the size detection of silicon steel sheets as an example, the specific detection process of this embodiment is described in detail.

[0068] Step 1: Place the silicon steel sheet to be tested on the tempered glass 35 of the support platform 3 between the moving guide rail platforms 2, and press the operation button 84 in the console 8 to start the equipment;

[0069] Step 2: The display 83 of the console 8 prompts you to enter the length of the silicon steel sheet. The staff can enter the standard size of the silicon steel sheet according to the actual situation;

[0070] Step 3: The industrial image processing computer 82 converts the preliminary signal into a motion signal of the line scanning component 6 according to the operator's operation. The industrial computer 85 transmits the motion signal to the X-axis linear motor 51 of the gantry motion module 5 and the light source motor 313 under the support platform 3;

[0071] Step 4: The X-axis linear motor 51 moves along the length of the frame 1, driving the entire gantry motion module 5 to move, enabling the line scanning assembly 6 to capture the line scan of the support platform. The light source motor 313 rotates, driving the light source 310 to move synchronously with the line scanning assembly 6 fixed to the gantry motion module 5 through the synchronous belt 316;

[0072] Step 5: After the line scanning component 6 captures the complete image of the silicon steel sheet on the supporting platform, the image information is transmitted to the industrial-grade image processing computer 82. The industrial-grade image processing computer 82 processes the image information to determine the type of the silicon steel sheet to be detected, matches the type of the silicon steel sheet to be detected with the product model in the database, and finally obtains the corner point information of the outer contour of the silicon steel sheet to be detected. The industrial-grade image processing computer 82 processes the information to obtain the position information of the corner points required for the measurement component 7 to shoot.

[0073] Step 6: The industrial image processing computer 82 converts the position information into a motion control signal and transmits it to the industrial computer 85. The industrial computer 85 simultaneously transmits the motion signal to the X-axis linear motor 51, the Y-axis linear motor 57, and the light source motor 313. The X-axis linear motor 51 and the Y-axis linear motor 57 control the measurement assembly 7 to move to the position of the desired corner point of the silicon steel sheet to be inspected. The area array camera 74 collects image information of each corner point through the area array lens 75.

[0074] Step 7: After all corner point images are collected, the images are transmitted to the industrial-grade image processing computer 82. The industrial-grade image processing computer 82 calculates the specific size of the silicon steel sheet to be inspected based on the image information collected by the measurement component 7 and the movement distance between each photographing point;

[0075] Step 8: Press the operation button 84 in the console 8 to pause the equipment and remove the product to be inspected from the tempered glass 35.

[0076] The overall process steps are as follows Figure 12As shown; wherein, during the loading and unloading process of the product to be inspected, the protective grating 4 stops working; when the equipment is in normal operation, any grating bar 41 in the protective grating 4 detects the entry of a foreign object, and transmits a signal to the industrial computer 85 and the single-type warning light 511, the industrial computer 85 sends a stop signal, all the actuators suspend movement, and the single-type warning light 511 issues an alarm and flashes a prompt.

[0077] The control signal processing of the industrial-grade image processing computer and the industrial computer in the above process is conventional industrial automatic control technology, and the specific control signal processing process is not described in detail in this embodiment.

[0078] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0079] As used herein, the terms "comprises," "comprising," or any other variations thereof are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0080] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A large-format plate optical rapid measurement device, characterized by: It includes a frame (1), a motion guide platform (2), a supporting platform (3), and a gantry motion module (5); The supporting platform (3) and the motion guide platform (2) are arranged on the upper surface of the frame (1), the motion guide platform (2) is located on both sides of the supporting platform (3), the supporting platform (3) is used to place the plate to be detected, the gantry motion module (5) is moved along the motion guide platform (2) and is mounted above the supporting platform (3), and the gantry motion module (5) is provided with a line scanning component (6) for performing line scanning on the supporting platform, and a measuring component (7) for moving to any position of the supporting platform to perform area array acquisition on the corner points of the plate to be detected.

2. The optical rapid measurement device for large-format plate materials according to claim 1, characterized in that: The frame (1) is composed of at least two groups of sub-frames spliced together, adjacent sub-frame brackets are fixedly connected via a frame connecting plate (13), and casters (15) and foot cups (16) are provided at the bottom of each sub-frame.

3. The optical rapid measurement device for large-format plate materials according to claim 1, characterized in that: The motion guide platform (2) comprises two marble stones (21) arranged in parallel on both sides of the supporting platform. The upper surface of the frame (1) is provided with a marble support (18) for supporting and fixing the marble stones, and a plurality of marble top blocks (17) for adjusting the flatness of the marble stones.

4. The optical rapid measurement device for large-format plate materials according to claim 1, characterized in that: The supporting platform (3) is a transparent platform, and a light source system for shooting and collecting images of an auxiliary line scanning component (6) and a measuring component (7) is provided at the bottom thereof.

5. The optical rapid measurement device for large-format plate materials according to claim 4, characterized in that: The supporting platform (3) is spliced with tempered glass (35), and the tempered glass (35) is fixed on the frame between the motion guide rail platforms through a sealing plate (31).

6. The optical rapid measurement device for large-format plate materials according to claim 5, characterized in that: The light source system adopts a mobile light source, which is a strip light source corresponding to the width of the supporting platform between the moving guide rail platforms, and also includes a linear guide rail (37) and a synchronous belt mechanism. The linear guide rail (37) is arranged at the bottom of both sides of the supporting platform (3) in the same direction as the moving guide rail platform, and the two ends of the strip light source are connected to the linear sliders (38) of the linear guide rail (37). The synchronous belt mechanism is erected at the bottom of the supporting platform (3) in the same direction as the linear guide rail and is connected to the strip light source. The strip light source is driven by the synchronous belt mechanism to translate along the linear guide rail at the bottom of the supporting platform.

7. The optical rapid measurement device for large-format plate materials according to claim 1, characterized in that: The gantry motion module (5) includes an X-axis linear motion module and a Y-axis linear motion module, wherein the X-axis linear motion module is arranged on the motion guide rail platform along the motion guide rail platform (2), and the Y-axis linear motion module is installed on the moving end of the X-axis linear motion module perpendicular to the motion guide rail platform. The line scanning component (6) is arranged on the fixed frame of the Y-axis linear motion module, and is driven by the X-axis linear motion module to perform line scanning on the plate to be detected on the supporting platform. The measuring component (7) is arranged on the moving end of the Y-axis linear motion module, and is moved to any position of the supporting platform by the X-axis linear motion module and the Y-axis linear motion module to perform area array acquisition on the corner points of the plate to be detected.

8. The large-format plate optical rapid measurement device according to claim 7, characterized in that: The line scanning assembly (6) includes a line scanning camera (64) equipped with a line scanning lens (65), and the line scanning camera (64) is mounted on the gantry motion module (5) via a line scanning telescopic element arranged perpendicular to the supporting platform; The measuring assembly (7) comprises an area array camera (74) equipped with an area array lens (75), and the area array camera (74) is mounted on the gantry motion module (5) via an area array telescopic element arranged perpendicular to the supporting platform.

9. The large-format plate optical rapid measurement device according to claim 7, characterized in that: The X-axis linear motion module and the Y-axis linear motion module are both provided with grating scales for feedback motion displacement.

10. The large-format plate optical rapid measurement device according to claim 1, characterized in that: The periphery of the frame (1) is provided with a protective grating (4) surrounding the entire device.

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