Profile steel tongue cutting automatic positioning method and system

Abstract

The invention discloses a profile steel tongue cutting automatic positioning method which comprises the following steps: when the head of profile steel reaches a first detection point, a control system receives a deceleration signal and then controls the profile steel to decelerate, so that the profile steel reaches a preset position of a laser length measurement system; the laser length measuring system photographs the tongue part of the profile steel head to obtain profile steel head image data, the data processing system calculates length data of the head tongue, when the profile steel head reaches a second detection point, the laser length measuring system stops photographing the tongue part of the profile steel head, and when the profile steel head reaches a third detection point, the laser length measuring system stops photographing the tongue part of the profile steel head. Controlling the profile steel to decelerate so that the profile steel just reaches the position of a baffle plate, calculating the required moving distance of the moving saw after the profile steel stops moving, and controlling the moving saw to automatically move to the position of a cutting line to perform tongue cutting operation; after profile steel head tongue cutting is completed, the baffle automatically descends, the conveying roller way is automatically started, and the head sawing process is finished; automatic positioning in the profile steel tongue cutting process is achieved, and the requirement for manual operation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of section steel processing, and in particular to a method and system for automatically positioning a section steel cutting tongue. Background Art

[0002] During the processing of steel sections, tongue cutting is a common operation, which is used to cut off the tongue part of the steel section after rolling through the rolling mill so that it can enter the next rolling process or assembly. It requires precise cutting of the steel section to meet the needs of subsequent processing or use. Traditional steel section tongue cutting operations are usually manual operations, which have problems of low efficiency and large errors. With the development of automation technology, how to achieve automatic positioning of steel section tongue cutting has become an urgent problem to be solved in the industry. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a method and system for automatically positioning a steel section cutting tongue, which overcomes the above problems or at least partially solves the above problems.

[0004] In order to solve the above technical problems, the embodiments of the present application disclose the following technical solutions:

[0005] In a first aspect, an embodiment of the present invention discloses a method for automatically positioning a steel cutting tongue, comprising:

[0006] S100. When the head of the steel reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel to decelerate so that the steel reaches the preset position of the laser length measurement system;

[0007] S200. When the head of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tongue part of the head of the steel section to obtain image data of the head of the steel section, sends the image data of the head of the steel section to the data processing system, calculates the length data of the tongue of the head through the data processing system, and sends the length data to the positioning control system;

[0008] S300. When the head of the steel reaches the second detection point, the laser length measurement system is stopped to take a photo of the tongue part of the head of the steel, and the steel is controlled to continue to run. When the head of the steel reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel is controlled to slow down so that the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0009] S400. After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move;

[0010] S500. After the tongue cutting of the steel head is completed, the baffle automatically descends, the conveyor roller automatically starts, and the head sawing process is completed;

[0011] S600. When the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends.

[0012] Furthermore, in S100, a laser length measurement system is used to detect position information of the steel section, and the laser length measurement system at least includes a laser length measuring instrument, a camera or other image sensors.

[0013] Further, in S100, the method for determining the position of the first detection point includes: calculating the time taken for the roller speed to drop to the speed of the camera passing through the laser length measurement system, and then calculating the distance between the first detection point and the camera in the laser length measurement system based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set by frequency converter parameters.

[0014] Furthermore, in S200, the method for calculating the length of the tongue on the head includes: a data processing system analyzes the image data to obtain the distance between each frame of the image, and calculates the length of the tongue according to the number of frames of the camera and the distance between each frame.

[0015] Further, in S300, the position of the second detection point is within 2 meters from the camera in the laser length measurement system.

[0016] Further, in S300, the method for determining the position of the third detection point includes: calculating the time taken for the roller speed to drop to zero, and then calculating the distance of the third detection point from the baffle based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set by frequency converter parameters.

[0017] Furthermore, in S400, the calculation method of the distance that the mobile saw needs to move includes: when the mobile saw is behind the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle plus the length of the cut tongue; when the mobile saw is in front of the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle minus the length of the cut tongue.

[0018] Further, in S600, when the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends. The specific method includes:

[0019] When the tail of the steel section reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system.

[0020] When the tail of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tail tongue of the steel section to obtain the image data of the tail of the steel section, and sends the image data of the tail of the steel section to the data processing system, calculates the length data of the tail tongue through the data processing system, and sends the length data to the positioning control system;

[0021] When the tail of the steel reaches the second detection point, the laser length measurement system is stopped to take pictures of the tongue and tail of the steel, and the steel is controlled to continue to run. When the tail of the steel reaches the third detection point, the positioning control system is started to control the steel to slow down so that the tail of the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0022] After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move.

[0023] After the tail tongue cutting of the steel section is completed, the conveyor roller starts automatically and the tail sawing process is completed.

[0024] In a second aspect, an embodiment of the present invention discloses a system for automatic positioning of a steel cutting tongue, comprising: a steel first deceleration control unit, a steel head tongue length calculation unit, a steel second deceleration control unit, a tongue cutting operation control unit and a baffle control unit; wherein:

[0025] The first deceleration control unit for the steel section is used to send a deceleration signal to the positioning control system when the head of the steel section reaches the first detection point. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system;

[0026] The section steel head tongue length calculation unit is used to take a picture of the section steel head tongue part by the laser length measurement system when the section steel head passes through the preset position of the laser length measurement system to obtain the section steel head image data, send the section steel head image data to the data processing system, calculate the length data of the head tongue by the data processing system, and send the length data to the positioning control system;

[0027] The second deceleration control unit of the steel section is used to stop the laser length measurement system to take pictures of the tongue part of the steel section head when the steel section head reaches the second detection point, and control the steel section to continue to run. When the steel section head reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel section is controlled to decelerate so that the steel section just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0028] The tongue cutting operation control unit is used to calculate the distance that the mobile saw needs to move according to the tongue cutting length after the steel section stops moving. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move;

[0029] The baffle control unit is used to automatically lower the baffle after the tongue cutting of the steel head is completed, and the conveyor roller is automatically started, and the head sawing process is completed.

[0030] In a third aspect, an embodiment of the present invention discloses an electronic device, including:

[0031] one or more processors;

[0032] A memory for storing one or more programs;

[0033] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for automatic positioning of the steel section cutting tongue.

[0034] The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

[0035] The present invention discloses a method for automatically positioning a cutting tongue of a steel section, comprising: S100. When the head of the steel section reaches a first detection point, a deceleration signal is sent to a positioning control system, and after receiving the deceleration signal, the control system controls the steel section to decelerate, so that the steel section reaches a preset position of a laser length measurement system; S200. When the head of the steel section passes through the preset position of the laser length measurement system, the laser length measurement system is used to take a picture of the tongue part of the head of the steel section to obtain image data of the head of the steel section, and the image data of the head of the steel section is sent to a data processing system, and the length data of the head tongue is calculated by the data processing system, and the length data is sent to the positioning control system; S300. When the head of the steel section reaches a second detection point, the laser length measurement system is stopped to measure the tongue part of the head of the steel section. The head part is photographed and the steel section is controlled to continue to run. When the head of the steel section reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel section is controlled to slow down so that the steel section just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length; S400. After the steel section stops moving, the distance the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation based on the calculated distance the mobile saw needs to move; S500. After the tongue cutting of the head of the steel section is completed, the baffle automatically descends, the conveyor roller starts automatically, and the head sawing process ends; S600. When the tail of the steel section reaches the first detection point, repeat steps S100-S500, and the tail sawing process ends.

[0036] The present invention realizes the automatic positioning of the steel tongue cutting process through the cooperation of the laser length measurement system, the data processing system, the cutting control system and the positioning control system, thereby reducing the need for manual operation. The present invention ensures the accuracy of the cutting position through precise laser measurement and calculation, thereby improving the processing accuracy of the steel tongue cutting. The present invention greatly improves the production efficiency of the steel tongue cutting through the application of the automatic positioning control system, thereby saving manpower and time costs.

[0037] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0039] Figure 1 This is a flow chart of a method for automatically positioning a steel cutting tongue in Example 1 of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of an electronic device in Example 3 of the present invention. DETAILED DESCRIPTION

[0041] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0042] In order to solve the problems existing in the prior art, an embodiment of the present invention provides a method and system for automatically positioning a steel cutting tongue.

[0043] Example 1

[0044] The present invention discloses a method for automatically positioning a steel cutting tongue. Figure 1 ,include:

[0045] S100. When the head of the steel reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel to decelerate so that the steel reaches the preset position of the laser length measurement system;

[0046] Specifically, before introducing a method for automatically positioning a steel cutting tongue in this embodiment, the device system for implementing the overall method is first introduced. Figure 2 The control system of the present invention is mainly composed of the following four parts, and each system works in coordination. The system diagram is shown in the attached Figure 2:

[0047] 1) Laser length measurement system: used to detect the position information of steel sections. The system may include a laser length meter, a camera or other applicable sensors.

[0048] 2) Data processing system: used to receive data from the laser length measuring instrument and calculate the required tongue cutting length.

[0049] 3) Cutting control system: used to realize the tongue cutting operation of the steel section. The cutting system may include a mobile saw, a cutting robot arm or other applicable cutting equipment.

[0050] 4) Positioning control system: used to position the steel to the cutting position and ensure the accuracy of the cutting position. The positioning control system may include baffles, steel detectors, PLC controllers, encoders, etc.

[0051] In S100 of this embodiment, the method for determining the position of the first detection point includes: calculating the time taken for the roller speed to drop to the speed of the camera in the laser length measurement system, and then calculating the distance between the first detection point and the camera in the laser length measurement system based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set by frequency converter parameters.

[0052] S200. When the head of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tongue part of the head of the steel section to obtain image data of the head of the steel section, sends the image data of the head of the steel section to the data processing system, calculates the length data of the tongue of the head through the data processing system, and sends the length data to the positioning control system;

[0053] In S200 of this embodiment, the method for calculating the length of the head tongue includes: a data processing system analyzes the image data to obtain the distance between each frame of the image, and calculates the length of the tongue according to the number of camera frames and the distance between each frame.

[0054] S300. When the head of the steel reaches the second detection point, the laser length measurement system is stopped to take a photo of the tongue part of the head of the steel, and the steel is controlled to continue to run. When the head of the steel reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel is controlled to slow down so that the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0055] In S300 of this embodiment, the length of the steel tongue is generally in the range of several tens of centimeters, so the second detection point is located within 2 meters from the camera in the laser length measurement system.

[0056] In S300 of this embodiment, the method for determining the position of the third detection point includes: calculating the time taken for the roller speed to drop to zero, and then calculating the distance of the third detection point from the baffle based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set by frequency converter parameters.

[0057] S400. After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move;

[0058] In S400 of this embodiment, the calculation method of the distance that the mobile saw needs to move includes: when the mobile saw is behind the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle plus the length of the cutting tongue; when the mobile saw is in front of the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle minus the length of the cutting tongue.

[0059] S500. After the tongue cutting of the steel head is completed, the baffle automatically descends, the conveyor roller automatically starts, and the head sawing process is completed;

[0060] S600. When the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends.

[0061] In S600 of this embodiment, when the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends. The specific method includes:

[0062] When the tail of the steel section reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system.

[0063] When the tail of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tail tongue of the steel section to obtain the image data of the tail of the steel section, and sends the image data of the tail of the steel section to the data processing system, calculates the length data of the tail tongue through the data processing system, and sends the length data to the positioning control system;

[0064] When the tail of the steel reaches the second detection point, the laser length measurement system is stopped to take pictures of the tongue and tail of the steel, and the steel is controlled to continue to run. When the tail of the steel reaches the third detection point, the positioning control system is started to control the steel to slow down so that the tail of the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0065] After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move.

[0066] After the tail tongue cutting of the steel section is completed, the conveyor roller starts automatically and the tail sawing process is completed.

[0067] The present embodiment discloses a method for automatic positioning of a steel section tongue, comprising: S100. When the head of the steel section reaches the first detection point, a deceleration signal is sent to the positioning control system, and after receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches a preset position of the laser length measurement system; S200. When the head of the steel section passes the preset position of the laser length measurement system, the laser length measurement system is used to take a picture of the tongue part of the head of the steel section to obtain image data of the head of the steel section, and the image data of the head of the steel section is sent to the data processing system, and the length data of the head tongue is calculated by the data processing system, and the length data is sent to the positioning control system; S300. When the head of the steel section reaches the second detection point, the laser length measurement system is stopped to measure the length of the head of the steel section. The tongue part is photographed, and the steel section is controlled to continue to run. When the head of the steel section reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel section is controlled to slow down so that the steel section just reaches the baffle position. At this time, the distance from the baffle to the cutting line is the tongue cutting length; S400. After the steel section stops moving, the distance the mobile saw needs to move is calculated according to the tongue cutting length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation based on the calculated distance the mobile saw needs to move; S500. After the tongue cutting of the head of the steel section is completed, the baffle automatically descends, the conveyor roller starts automatically, and the head sawing process ends; S600. When the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends.

[0068] This embodiment realizes the automatic positioning of the steel tongue cutting process through the cooperation of the laser length measurement system, the data processing system, the cutting control system and the positioning control system, reducing the need for manual operation. The present invention ensures the accuracy of the cutting position through precise laser measurement and calculation, and improves the processing accuracy of the steel tongue cutting. The present invention greatly improves the production efficiency of the steel tongue cutting through the application of the automatic positioning control system, saving manpower and time costs.

[0069] Example 2

[0070] Based on the same inventive concept, the embodiment of the present disclosure also provides a system for automatic positioning of a steel cutting tongue, which adopts the automatic positioning method in Example 1, including: a steel first deceleration control unit, a steel head tongue length calculation unit, a steel second deceleration control unit, a tongue cutting operation control unit and a baffle control unit; wherein:

[0071] The first deceleration control unit for the steel section is used to send a deceleration signal to the positioning control system when the head of the steel section reaches the first detection point. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system;

[0072] The section steel head tongue length calculation unit is used to take a picture of the section steel head tongue part by the laser length measurement system when the section steel head passes through the preset position of the laser length measurement system to obtain the section steel head image data, send the section steel head image data to the data processing system, calculate the length data of the head tongue by the data processing system, and send the length data to the positioning control system;

[0073] The second deceleration control unit of the steel section is used to stop the laser length measurement system to take pictures of the tongue part of the steel section head when the steel section head reaches the second detection point, and control the steel section to continue to run. When the steel section head reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel section is controlled to decelerate so that the steel section just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length;

[0074] The tongue cutting operation control unit is used to calculate the distance that the mobile saw needs to move according to the tongue cutting length after the steel section stops moving. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move;

[0075] The baffle control unit is used to automatically lower the baffle after the tongue cutting of the steel head is completed, and the conveyor roller is automatically started, and the head sawing process is completed.

[0076] Among them, the specific working methods of the first deceleration control unit of the steel section, the tongue length calculation unit of the steel section head, the second deceleration control unit of the steel section, the tongue cutting operation control unit and the baffle control unit have been recorded in detail in Example 1, and will not be repeated here in this embodiment.

[0077] Example 3

[0078] Based on the same inventive concept, an embodiment of the present disclosure also provides an electronic device. Figure 2 FIG. 1 is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. Figure 2 As shown, an embodiment of the present disclosure provides an electronic device including: one or more processors 101, a memory 102, and one or more I / O interfaces 103. The memory 102 stores one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors implement any optimization method in the above embodiments; the one or more I / O interfaces 103 are connected between the processor and the memory, and are configured to implement information interaction between the processor and the memory.

[0079] Among them, the processor 101 is a device with data processing capabilities, including but not limited to a central processing unit (CPU), etc.; the memory 102 is a device with data storage capabilities, including but not limited to random access memory (RAM, more specifically SDRAM, DDR, etc.), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory (FLASH); the I / O interface (read-write interface) 103 is connected between the processor 101 and the memory 102, and can realize information interaction between the processor 101 and the memory 102, including but not limited to a data bus (Bus), etc.

[0080] In some embodiments, the processor 101 , the memory 102 , and the I / O interface 103 are connected to each other via a bus 104 , and further connected to other components of the computing device.

[0081] In some embodiments, the one or more processors 101 include a field programmable gate array.

[0082] According to an embodiment of the present disclosure, a computer-readable medium is further provided, wherein a computer program is stored on the computer-readable medium, wherein when the program is executed by a processor, the steps in any optimization method in the above-mentioned embodiment are implemented.

[0083] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of protection of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy described.

[0084] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0085] Those skilled in the art will also appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments herein can all be implemented as electronic hardware, computer software, or a combination thereof. In order to clearly illustrate the interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above around their functions. Whether such functions are implemented as hardware or software depends on specific applications and the design constraints imposed on the entire system. A skilled person can implement the described functions in an alternative manner for each specific application, but such implementation decisions should not be interpreted as departing from the scope of protection of the present disclosure.

[0086] The steps of the method or algorithm described in conjunction with the embodiments herein may be directly embodied as hardware, a software module executed by a processor, or a combination thereof. The software module may be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium may also be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The ASIC may be located in a user terminal. Of course, the processor and the storage medium may also be present in a user terminal as discrete components.

[0087] For software implementation, the techniques described in this application can be implemented with modules (e.g., procedures, functions, etc.) that perform the functions described in this application. These software codes can be stored in a memory unit and executed by a processor. The memory unit can be implemented within the processor or outside the processor. In the latter case, it is coupled to the processor in a communication manner via various means, which are well known in the art.

[0088] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. A method for automatically positioning a steel cutting tongue, characterized in that: include: S100. When the head of the steel reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel to decelerate so that the steel reaches the preset position of the laser length measurement system; S200. When the head of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tongue part of the head of the steel section to obtain image data of the head of the steel section, sends the image data of the head of the steel section to the data processing system, calculates the length data of the tongue of the head through the data processing system, and sends the length data to the positioning control system; S300. When the head of the steel reaches the second detection point, the laser length measurement system is stopped to take a photo of the tongue part of the head of the steel, and the steel is controlled to continue to run. When the head of the steel reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel is controlled to slow down so that the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length; S400. After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move; S500. After the tongue cutting of the steel head is completed, the baffle automatically descends, the conveyor roller automatically starts, and the head sawing process is completed; S600. When the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends.

2. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S100, the laser length measurement system is used to detect the position information of the steel section, and the laser length measurement system at least includes a laser length measuring instrument, a camera or other image sensors.

3. A method for automatically positioning a steel cutting tongue as claimed in claim 2, characterized in that: In S100, the method for determining the position of the first detection point includes: calculating the time taken for the roller speed to drop to the speed of the camera in the laser length measurement system, and then calculating the distance between the first detection point and the camera in the laser length measurement system based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set by frequency converter parameters.

4. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S200, the method for calculating the length of the head tongue includes: a data processing system analyzes the image data to obtain the distance between each frame of the image, and calculates the length of the tongue according to the number of frames of the camera and the distance between each frame.

5. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S300, the second detection point is located within 2 meters from the camera in the laser length measurement system.

6. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S300, the method for determining the position of the third detection point includes: calculating the time taken for the roller speed to drop to zero, and then calculating the distance of the third detection point from the baffle based on the obtained time and speed; the speed of the roller is controlled by a frequency converter, and the acceleration and deceleration rates of the frequency converter can be set through the frequency converter parameters.

7. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S400, the calculation method of the distance that the mobile saw needs to move includes: when the mobile saw is behind the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle plus the length of the cutting tongue; when the mobile saw is in front of the baffle, the distance that the mobile saw needs to move is the distance between the mobile saw and the baffle minus the length of the cutting tongue.

8. A method for automatically positioning a steel cutting tongue as claimed in claim 1, characterized in that: In S600, when the tail of the steel section reaches the first detection point, steps S100-S500 are repeated, and the tail sawing process ends. The specific method includes: When the tail of the steel section reaches the first detection point, a deceleration signal is sent to the positioning control system. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system. When the tail of the steel section passes through the preset position of the laser length measuring system, the laser length measuring system takes a picture of the tail tongue of the steel section to obtain the image data of the tail of the steel section, and sends the image data of the tail of the steel section to the data processing system, calculates the length data of the tail tongue through the data processing system, and sends the length data to the positioning control system; When the tail of the steel reaches the second detection point, the laser length measurement system is stopped to take pictures of the tongue and tail of the steel, and the steel is controlled to continue to run. When the tail of the steel reaches the third detection point, the positioning control system is started to control the steel to slow down so that the tail of the steel just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length; After the steel stops moving, the distance that the mobile saw needs to move is calculated according to the cutting tongue length. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move. After the tail tongue cutting of the steel section is completed, the conveyor roller starts automatically and the tail sawing process is completed.

9. A system for automatic positioning of a steel cutting tongue, using the automatic positioning method according to any one of claims 1 to 8, characterized in that: include: The first deceleration control unit for steel, the tongue length calculation unit for the head of steel, the second deceleration control unit for steel, the tongue cutting operation control unit and the baffle control unit; wherein: The first deceleration control unit for the steel section is used to send a deceleration signal to the positioning control system when the head of the steel section reaches the first detection point. After receiving the deceleration signal, the control system controls the steel section to decelerate so that the steel section reaches the preset position of the laser length measurement system; The section steel head tongue length calculation unit is used to take a picture of the section steel head tongue part by the laser length measurement system when the section steel head passes through the preset position of the laser length measurement system to obtain the section steel head image data, send the section steel head image data to the data processing system, calculate the length data of the head tongue by the data processing system, and send the length data to the positioning control system; The second deceleration control unit of the steel section is used to stop the laser length measurement system to take pictures of the tongue part of the steel section head when the steel section head reaches the second detection point, and control the steel section to continue to run. When the steel section head reaches the third detection point, the positioning control system is started, the baffle is lifted, and the steel section is controlled to decelerate so that the steel section just reaches the baffle position. At this time, the position from the baffle to the cutting line is the cutting tongue length; The tongue cutting operation control unit is used to calculate the distance that the mobile saw needs to move according to the tongue cutting length after the steel section stops moving. The cutting control system controls the mobile saw to automatically move to the cutting line position to perform the tongue cutting operation according to the calculated distance that the mobile saw needs to move; The baffle control unit is used to automatically lower the baffle after the tongue cutting of the steel head is completed, and the conveyor roller is automatically started, and the head sawing process is completed.

10. An electronic device, characterized in that: include: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method for automatic positioning of the steel cutting tongue as described in any one of claims 1-8.

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