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CN-115446434-B - Profile steel cutting control method

CN115446434BCN 115446434 BCN115446434 BCN 115446434BCN-115446434-B

Abstract

The invention provides a section steel cutting control method, which is characterized in that a working condition of a section steel to be cut is identified according to the section characteristics of the section steel to be cut, a sub-cutting process corresponding to the working condition in a process library is judged, a cutting mechanism is controlled to execute cutting operation according to the selected sub-cutting process, if the sub-cutting process corresponding to the working condition is not stored in the process library, the cutting mechanism is controlled to execute cutting operation according to the real-time adjusted process parameters, the process parameters corresponding to the sub-cutting process of the working condition are recorded and stored, and the process library is updated. The invention realizes real-time communication with a power supply and a height-adjusting device, realizes online real-time accurate regulation and control technology in the cutting process, cuts different surfaces and different positions of the profile steel by using a targeted cutting technology, achieves the aim of improving the cutting effect, can realize the integral completion of cutting and scribing, and can basically replace the work of a riveter.

Inventors

  • XU ZONGYAO

Assignees

  • 临沂健坤智能科技有限公司

Dates

Publication Date
20260505
Application Date
20221019

Claims (7)

  1. 1. A method for controlling the cutting of shaped steel features that the cross-section characteristics of shaped steel to be cut are recognized, the cutting process corresponding to the shaped steel to be cut in technological pool is judged, the cutting mechanism is controlled to execute cutting operation according to the chosen cutting process, if it is judged that the cutting process corresponding to the shaped steel to be cut is not stored in technological pool, the cutting mechanism is controlled to execute cutting according to the sub-cutting process chosen in real time, the technological parameters corresponding to the cutting process of shaped steel to be cut are recorded and stored, technological pool is updated, The control cutting mechanism performs cutting according to the sub-cutting process selected in real time, comprising, identifying the working condition of the section steel to be cut, judging the sub-cutting process corresponding to the working condition in the process library, controlling the cutting mechanism to perform cutting operation according to the selected sub-cutting process, if judging that the sub-cutting process corresponding to the working condition is not stored in the process library, controlling the cutting mechanism to perform cutting operation according to the real-time adjusted process parameters, recording and storing the process parameters corresponding to the sub-cutting process of the working condition, updating the process library, The section characteristics of the section steel are used for describing the section shape of the section steel, judging the type of the section steel and controlling the selection and the determination of the technological parameters in the sub-cutting process corresponding to the section steel, The cutting mechanism is a plasma cutting mechanism, when the plasma cutting mechanism is controlled to cut according to the process parameters regulated in real time, the cutting mechanism comprises the steps of selecting proper cutting gas and cutting air pressure, selecting proper protective gas and protective air pressure, determining whether positioning enabling and arcing are successfully opened, determining the positioning and arcing height of a cutting gun according to a set state, completing perforation after the set perforation time is reached, executing cutting by using preset cutting current after perforation is completed, opening or closing a plasma arc pressure elevation function in the cutting process according to definition of elevation enabling, closing an electric arc after cutting is completed, and performing elevation operation according to the defined elevation height, so that collision is avoided when the cutting gun moves.
  2. 2. The method of claim 1, wherein the determining the sub-cutting process in the process library corresponding to the working condition controls the cutting mechanism to perform the cutting operation according to the selected sub-cutting process, at least comprising one of the following execution modes: the working condition of the cutting to be executed is cutting of a simple plane, and the cutting mechanism is controlled to execute cutting operation according to a conventional cutting process; the working condition of the cutting to be performed is cutting of the thinned surface, and the cutting mechanism is controlled to perform cutting operation according to a thin surface transition process; the working condition of the cutting to be performed is cutting of a round angle surface, a corner surface and a plane with thickness variation, and the cutting mechanism is controlled to perform cutting operation according to a corner transition process; The working condition of the cutting to be performed is cutting of the surface of the groove to be cut, and the cutting mechanism is controlled to perform cutting operation according to the groove cutting process; The working condition to be cut is cutting of a round angle surface, a corner surface and a plane with thickness change in the section steel groove, and the cutting mechanism is controlled to perform cutting operation according to the groove corner process; the working condition of cutting to be performed is cutting of holes on the conventional surface of the section steel, and the cutting mechanism is controlled to perform cutting operation according to a hole cutting process; the working condition of the cutting to be performed is cutting of holes on the thin surface of the section steel, and the cutting mechanism is controlled to perform cutting operation according to a thin surface hole cutting process; The working condition of the cutting to be executed is scribing, and the cutting mechanism is controlled to execute cutting operation according to the marking process.
  3. 3. The section steel cutting control method according to claim 1, wherein the identifying the section characteristics of the section steel to be cut includes acquiring the section characteristics of the section steel to be cut by a manual input or an on-line identification portion.
  4. 4. The section steel cutting control method according to claim 3, wherein the on-line identification part comprises a sensor and a signal identification part, the sensor is arranged on the section steel to be cut and is transmitted on the guide rail along with the section steel to be cut, the signal identification part is in communication connection with the controller, the signal identification part reads the signal of the sensor, acquires section characteristics of the section steel, and transmits the acquired section characteristics to the controller.
  5. 5. The method for controlling the cutting of the profile steel according to claim 3, wherein the online identification part is used for measuring the dimension of the cut profile steel after the online monitoring to obtain the slit dimension, and the real-time dynamic compensation is carried out on the slit dimension of the cut profile steel through a PID algorithm.
  6. 6. The method for controlling cutting of steel according to claim 1, wherein the process parameters of the sub-cutting process corresponding to the working conditions are obtained, including system recommended parameters or system automatic given parameters.
  7. 7. The method according to claim 1, wherein the successful arcing signal to be satisfied when the inner perforation of the material is cut is complete arcing success, the material edge is cut only when the small arcing is satisfied, the arcing is considered to be successful, and meanwhile, the edge part of the material edge is completely closed to control the plasma arc voltage to be high and is not controlled by the high-voltage regulation enable.

Description

Profile steel cutting control method Technical Field The invention relates to the field of section steel cutting, in particular to a section steel cutting control method. Background In the current section steel cutting process, the cutting parameters are required to be manually adjusted by workers according to the difference of the cut section steel, so that the cutting width and the cutting forming effect of each cut are different due to the influence of human factors, the cutting size cannot be accurately controlled, and the cutting effect is unstable. Disclosure of Invention In order to solve the defects in the prior art, the invention provides a section steel cutting control method, which realizes an online real-time accurate regulation and control process in the cutting process and solves the technical problems that the cutting effect is unstable and the cutting size and the cutting effect cannot be accurately controlled due to manual regulation. A section steel cutting control method identifies section characteristics of section steel to be cut, judges a cutting process corresponding to the section steel to be cut in a process library, controls a cutting mechanism to execute cutting operation according to the selected cutting process, if the cutting process corresponding to the section steel to be cut is not stored in the process library, controls the cutting mechanism to execute cutting according to a sub-cutting process selected in real time, records and stores process parameters corresponding to the cutting process of the section steel to be cut, and updates the process library. Further, the cutting mechanism is controlled to execute cutting according to the sub-cutting process selected in real time, the cutting mechanism comprises the steps of identifying the working condition of the section steel to be cut according to the section characteristics of the section steel to be cut, judging the sub-cutting process corresponding to the working condition in the process library, controlling the cutting mechanism to execute cutting operation according to the selected sub-cutting process, if the sub-cutting process corresponding to the working condition is not stored in the process library, controlling the cutting mechanism to execute cutting operation according to the real-time adjusted process parameters, recording and storing the process parameters corresponding to the sub-cutting process of the working condition, and updating the process library. Further, judging the sub-cutting process corresponding to the working condition in the process library, and controlling the cutting mechanism to execute cutting operation according to the selected sub-cutting process, wherein the method at least comprises the following execution modes: the working condition of the cutting to be executed is cutting of a simple plane, and the cutting mechanism is controlled to execute cutting operation according to a conventional cutting process; the working condition of the cutting to be performed is cutting of the thinned surface, and the cutting mechanism is controlled to perform cutting operation according to a thin surface transition process; the working condition of the cutting to be performed is cutting of a round angle surface, a corner surface and a plane with thickness variation, and the cutting mechanism is controlled to perform cutting operation according to a corner transition process; The working condition of the cutting to be performed is cutting of the surface of the groove to be cut, and the cutting mechanism is controlled to perform cutting operation according to the groove cutting process; The working condition to be cut is cutting of a round angle surface, a corner surface and a plane with thickness change in the section steel groove, and the cutting mechanism is controlled to perform cutting operation according to the groove corner process; The working condition of cutting to be performed is cutting holes on each surface of the section steel, and the cutting mechanism is controlled to perform cutting operation according to a hole cutting process; The working condition of the cutting to be executed is scribing, and the cutting mechanism is controlled to execute cutting operation according to the marking process. Preferably, the cutting mechanism is a plasma cutting mechanism or a laser cutting mechanism. Preferably, the section characteristics of the section steel to be cut are obtained through manual input or an online identification part. Preferably, the on-line identification part comprises a sensor and a signal identification part, the sensor is arranged on the section steel to be cut and transmits the section steel to be cut along with the section steel to be cut on the guide rail, the signal identification part is in communication connection with the controller, the signal identification part reads the signal of the sensor, acquires section characteristics of the section steel and transmits the acquired