CN106647627B - High-precision numerical control system of four-roller plate bending machine based on machine vision - Google Patents
High-precision numerical control system of four-roller plate bending machine based on machine vision Download PDFInfo
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- CN106647627B CN106647627B CN201710099905.2A CN201710099905A CN106647627B CN 106647627 B CN106647627 B CN 106647627B CN 201710099905 A CN201710099905 A CN 201710099905A CN 106647627 B CN106647627 B CN 106647627B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4062—Monitoring servoloop, e.g. overload of servomotor, loss of feedback or reference
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33327—Self diagnostic of control system, servo system
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- Automation & Control Theory (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a high-precision numerical control system of a four-roller plate bending machine based on machine vision, which comprises four pairs of plate bending deformation monitoring devices respectively connected to one sides of an upper roller, a lower roller, a left roller and a right roller, wherein each pair of plate bending deformation monitoring devices comprises a plate bending pressure sensor, an angular displacement sensor and a CDD (compact disc detector) camera, and the four CDD cameras are respectively connected to an image processing module and an industrial personal computer through an image acquisition module; the industrial personal computer is also connected with a display module, an audible and visual alarm module, a communication module, an upper roller, a lower roller, a left roller, a right roller servo device and a rolling plate winding track module. The numerical control system ensures that the wound product has better precision, and meanwhile, the data are stored in the industrial personal computer and are called in real time, so that the data can be supplied to product inspectors, the inspection efficiency of the product is improved, and the numerical control system has a good inspection effect.
Description
Technical Field
The invention relates to the technical field of four-roller plate bending machines, in particular to a high-precision numerical control system of a four-roller plate bending machine based on machine vision.
Background
The traditional four-roll plate rolling machine judges the completion condition by human eyes, has larger error, needs to roll plates for many times, and is labor-consuming and time-consuming. Machine vision is then introduced, which can improve the roll bending accuracy and also increase the roll bending speed. On the basis, the patent provides vision type four-roller plate bending machine numerical control, which combines the control of a vision system and the control of a numerical control system of the four-roller plate bending machine together, thereby being beneficial to realizing full-automatic plate bending.
The application number is CN201110313326.6, the name is a vision type four-roller veneer reeling machine numerical control system, which consists of four major parts, namely a vision system module, an industrial personal computer, a human-computer interface module and an execution system module; the industrial personal computer is based on a Windows operating system; the visual system module is in two-way communication with the industrial personal computer and is used for acquiring images, processing the images and storing the processed results in the industrial personal computer; the man-machine interface module is in two-way communication with the industrial personal computer and is used for conversation between an operator and the industrial personal computer, the operator inputs a control instruction in the man-machine interface module, or the industrial personal computer displays a control result or an error prompt and the like on the man-machine interface module; the execution system module is in two-way communication with the industrial personal computer, and controls corresponding actions of the four-roller plate bending machine according to corresponding control instructions of the industrial personal computer. The invention realizes the measurement and control of the plate rolling process, and has the advantages of high efficiency, low power consumption, reduced labor intensity of workers, and the like.
However, when the vision type numerical control system is used, although the vision type numerical control system accurately monitors the power output systems of the upper roller, the lower roller, the left roller and the right roller, the rolling condition of the rolling machine is not accurately monitored, so that the rolling machine is flawed or failed, the numerical control system cannot find the rolling machine in time, manual monitoring and processing are still needed, the defective rate is high, a manual inspection link is needed in the later stage, and the production efficiency is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the four-roller plate bending machine for accurately and efficiently processing the plate bending machine.
The technical scheme adopted by the invention is as follows: the high-precision numerical control system of the four-roller plate bending machine based on machine vision comprises four pairs of plate bending deformation monitoring devices which are respectively connected to one sides of an upper roller, a lower roller, a left roller and a right roller, wherein each pair of plate bending deformation monitoring devices comprises a plate bending pressure sensor, an angular displacement sensor and a CDD (compact disc detector) camera, and the four CDD cameras are respectively connected to an image processing module and an industrial personal computer through an image acquisition module; the industrial personal computer is also connected with a display module, an audible and visual alarm module, a communication module, an upper roller servo device, a lower roller servo device, a left roller servo device, a right roller servo device and a rolling plate winding track module; the plate rolling and winding track module determines a theoretical model through a preset function or a product digital analog, the theoretical model is compared with an existing product model acquired by an industrial personal computer in real time, and when the real-time plate rolling track is compared with the theoretical plate rolling track and exceeds a set error range, the sound-light alarm module is started; and displaying the exceeding values and ranges on the display module in a graphical form.
Furthermore, the upper roll servo device, the lower roll servo device, the left roll servo device and the right roll servo device also feed back the execution power values to the industrial personal computer, the industrial personal computer compares the real-time values of the servo mechanisms with the rated values in real time and exceeds a certain value range, and the industrial personal computer alarms or stops the actions of the upper roll servo device, the lower roll servo device, the left roll servo device and the right roll servo device in time.
Further, the communication module is one of WiFi and Bluetooth.
Furthermore, the industrial personal computer is also connected with a pluggable memory, and the pluggable memory is connected with and records the plate rolling image and the plate rolling track change process of each plate rolling machine processing process of the image processing module, so that plate rolling product inspection personnel can directly call the plate rolling track change condition in the numerical control machine, the plate rolling quality is determined, a part of product inspection procedures are omitted, and the plate rolling quality and efficiency are improved.
Compared with the prior art, the invention has the beneficial effects that: the high-precision numerical control system of the four-roller plate bending machine based on machine vision is characterized in that each roller of the four-roller plate bending machine is provided with a plate bending deformation monitoring device, the monitoring devices monitor pressure, displacement and images of each direction of a plate bending, and simultaneously feed back the data to an industrial personal computer, and the industrial personal computer monitors the error between an actually wound product and a theoretical track of the product through a plate bending winding track module, so that the wound product has better precision, and meanwhile, the data are stored in the industrial personal computer and are called in real time, so that the high-precision numerical control system can be supplied to product inspectors, the inspection efficiency of the product is improved, and the inspection effect is good.
Drawings
FIG. 1 is a high-precision numerical control system of a four-roller plate bending machine based on machine vision.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further explained with reference to the accompanying drawings and examples, which are only for the purpose of explaining the present invention and do not limit the scope of the present invention.
As shown in fig. 1, the high-precision numerical control system of the four-roll plate bending machine based on machine vision comprises four pairs of plate bending deformation monitoring devices 1 respectively connected to one sides of an upper roll, a lower roll, a left roll and a right roll, wherein each pair of plate bending deformation monitoring devices 1 comprises a plate bending pressure sensor 2, an angular displacement sensor 3 and a CDD camera 4, and the four CDD cameras 4 are respectively connected to an image processing module 6 and an industrial personal computer 7 through an image acquisition module 5; the industrial personal computer 7 is also connected with a display module 8, an audible and visual alarm module 9, a communication module 10, an upper roller servo device 11, a lower roller servo device 12, a left roller servo device 13, a right roller servo device 14 and a rolling plate winding track module 15; the rolling plate winding track module 15 determines a theoretical model through a preset function or a product digital analog, the theoretical model is compared with an existing product model acquired by the industrial personal computer 7 in real time, and when the real-time rolling plate track is compared with the theoretical rolling plate track and exceeds a set error range, the sound-light alarm module 9 is started; while the values and ranges that are exceeded are graphically displayed on the display module 8.
In the above embodiment, the upper roll servo device 11, the lower roll servo device 12, the left roll servo device 13, and the right roll servo device 14 also feed back the execution power values to the industrial control computer 7, the industrial control computer 7 compares the real-time values of the servo mechanisms with the rated values in real time, and if the real-time values exceed a certain value range, the industrial control computer 7 alarms or timely stops the actions of the upper roll servo device 11, the lower roll servo device 12, the left roll servo device 13, and the right roll servo device 14.
In the above embodiment, the communication module 10 is one of WiFi and bluetooth.
In the above embodiment, the industrial personal computer 7 is further connected with the pluggable memory 16, and the pluggable memory 16 is connected with and records the rolling plate image and the rolling plate track change process of each rolling machine processing process of the image processing module 6, so that the rolling plate product inspection personnel can directly call the rolling plate track change condition in the numerical control machine, determine the quality of the rolling plate, omit a part of product inspection program, and improve the quality and efficiency of rolling plate winding.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (2)
1. Four roller veneer reeling machine high accuracy numerical control system based on machine vision, its characterized in that: the device comprises four pairs of plate bending deformation monitoring devices (1) which are respectively connected to one sides of an upper roller (17), a lower roller (18), a left roller (19) and a right roller (20), wherein each pair of plate bending deformation monitoring devices (1) comprises a plate bending pressure sensor (2), an angular displacement sensor (3) and a CDD camera (4), and the four CDD cameras (4) are respectively connected to an image processing module (6) and an industrial personal computer (7) through an image acquisition module (5);
the industrial personal computer (7) is also connected with a display module (8), an audible and visual alarm module (9), a communication module (10), an upper roller servo device (11), a lower roller servo device (12), a left roller servo device (13), a right roller servo device (14) and a rolling plate winding track module (15);
the plate rolling and winding track module (15) determines a theoretical model through a preset function or a product digital analog, the theoretical model is compared with an existing product model acquired by an industrial personal computer (7) in real time, and when the real-time plate rolling track is beyond a set error range compared with the theoretical plate rolling track, the sound and light alarm module (9) is started; simultaneously displaying the exceeding numerical values and ranges on a display module (8) in a graphical manner;
the upper roll servo device (11), the lower roll servo device (12), the left roll servo device (13) and the right roll servo device (14) also feed back the execution power values to the industrial personal computer (7), the industrial personal computer (7) compares the real-time values of the servo mechanisms with the rated values in real time and exceeds a certain value range, and the industrial personal computer (7) gives an alarm or stops the actions of the upper roll servo device (11), the lower roll servo device (12), the left roll servo device (13) and the right roll servo device (14) in time;
the industrial personal computer (7) is also connected with a pluggable memory (16), and the pluggable memory (16) is connected with and records the plate rolling image and the plate rolling track change process of each plate rolling machine processing process of the image processing module (6).
2. The machine vision-based high-precision numerical control system for the four-roller plate bending machine as claimed in claim 1, wherein the machine vision-based high-precision numerical control system comprises: the communication module (10) is one of WiFi and Bluetooth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710099905.2A CN106647627B (en) | 2017-02-23 | 2017-02-23 | High-precision numerical control system of four-roller plate bending machine based on machine vision |
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| CN201710099905.2A CN106647627B (en) | 2017-02-23 | 2017-02-23 | High-precision numerical control system of four-roller plate bending machine based on machine vision |
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| CN106647627B true CN106647627B (en) | 2020-07-14 |
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| CN112676376B (en) * | 2020-12-30 | 2021-12-14 | 南通铭泰机床有限公司 | Method and system for improving control precision of numerically controlled plate bending machine |
| CN114798825B (en) * | 2022-05-24 | 2024-01-09 | 南通威锋重工机械有限公司 | High-precision plate bending machine based on machine vision |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375430A (en) * | 2011-10-14 | 2012-03-14 | 江苏科技大学 | Numerical control system of vision type four-roller veneer reeling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814364B (en) * | 2012-09-07 | 2014-09-24 | 四川惊雷压力容器制造有限责任公司 | Automatic control system of plate rolling machine |
| RS57736B1 (en) * | 2014-12-12 | 2018-12-31 | Turanjanin Uros | Application of 3d camera in the process of bending profiles on machines for bending with three and four roller |
| CN205414012U (en) * | 2016-03-06 | 2016-08-03 | 南通科技职业学院 | Go up control system of roller universal three rolls plate bending machine |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102375430A (en) * | 2011-10-14 | 2012-03-14 | 江苏科技大学 | Numerical control system of vision type four-roller veneer reeling machine |
Non-Patent Citations (2)
| Title |
|---|
| 四辊卷板机的数控实现;杨树平 等;《沈阳化工学院学报》;20060630;第19卷(第2期);第110-112页 * |
| 大型卷板设备数控系统设计;李佳 等;《重型机械》;20011130(第6期);第37-40、48页 * |
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Effective date of registration: 20201021 Address after: 226600, room 2, 402 teachers' village, Li Town, Nantong County, Jiangsu, Haian Patentee after: Zhao Feiping Address before: 226600 Li Town Industrial Park, Haian County, Nantong, Jiangsu Patentee before: Nantong Chaoli Rolling Machine Producing Co.,Ltd. |
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Effective date of registration: 20210108 Address after: 226600 Libu Town Industrial Park, Hai'an County, Nantong City, Jiangsu Province Patentee after: Nantong Chaoli Rolling Machine Producing Co.,Ltd. Address before: 226600 room 402, building 2, teacher's new village, Libao town, Hai'an County, Nantong City, Jiangsu Province Patentee before: Zhao Feiping |
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