On-line arc striking and extinguishing plate adding device and method

Abstract

The invention provides a run-on and run-off plate online adding device and method, and belongs to the technical field of steel structure machining. The device comprises an incoming material position monitoring device, a central control system, a run-off plate adding device and a run-on plate adding device; the incoming material position monitoring device is used for monitoring that the tail end of the profile steel plate reaches the feeding end of the conveying roller way and the head end reaches the discharging end; the central control system is connected with the roller way control system and the incoming material position monitoring device and used for controlling the conveying roller way to pause according to the tail end in-place information and the head end in-place information and controlling the conveying roller way to start according to the arc extinguishing plate adding completion information and the end tab adding completion information. The arc quenching plate adding device is used for adding an arc quenching plate to the tail end of the profile steel plate piece; the run-on plate adding device is used for adding the run-on plate to the head end of the profile steel plate piece. The problem that in the prior art, a scheme for automatically adding the arc striking plate and the arc extinguishing plate online is lacked, and consequently the profile steel welding seam quality cannot be guaranteed can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure processing, and more specifically, to an arc-initiating and arc-extinguishing plate online adding device and method. Background Art

[0002] Welding defects are most likely to occur at the beginning and end of the main weld of T / H-shaped steel. Generally, it is necessary to extend the two ends of the weld outward by using arc starting plates and lead-out plates (arc extinguishing plates) to avoid the defects of the beginning and end welding falling on the beginning and end of the joints of the steel flange and web, thereby ensuring the stable and uniform quality of the entire weld.

[0003] However, in the current production process of the steel section welding and straightening automated production line, the welding and straightening integrated machine used lacks the function of automatically adding arc initiating and extinguishing plates, so it is impossible to automatically add arc initiating and extinguishing plates online, resulting in the inability to guarantee the weld quality of the steel section. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide an online adding device and method for arc-initiating and arc-extinguishing plates to solve the problem in the prior art that the integrated welding and straightening machine used in the automated production line for welding and straightening of steel sections lacks the function of automatically adding arc-initiating and arc-extinguishing plates, and cannot realize automatic online adding of arc-initiating and arc-extinguishing plates, resulting in the inability to guarantee the weld quality of the steel sections.

[0005] The arc-starting and arc-extinguishing plate online adding device provided by the present invention is used for automatically adding arc-starting plates and arc-extinguishing plates in the steel section welding and straightening automatic production line, and comprises a material position monitoring device, a central control system, an arc-extinguishing plate adding device and an arc-starting plate adding device; wherein,

[0006] The incoming material position monitoring device is used to monitor the end position information of the end of the steel plate arriving at the feeding end of the conveyor roller and the head position information of the head of the steel plate arriving at the discharging end of the conveyor roller during the process of the steel plate to be welded being conveyed to the assembly welding and straightening machine through the conveyor roller.

[0007] The central control system is respectively connected with the roller control system of the steel section welding and straightening automatic production line and the incoming material position monitoring device by signal, and is used to link the roller control system to control the conveying roller to pause for the first time according to the acquired end arrival information, and generate an arc extinguishing plate adding instruction; and to link the roller control system to control the conveying roller to pause for the second time according to the acquired head arrival information, and generate an arc starting plate adding instruction, and to link the roller control system again to control the conveying roller to start according to the acquired arc extinguishing plate adding device completing the arc extinguishing plate adding information and the arc starting plate adding device completing the arc starting plate adding information;

[0008] The arc extinguishing plate adding device is connected to the central control system signal, and is used to add the arc extinguishing plate to the end of the steel plate according to the arc extinguishing plate adding instruction, and generate arc extinguishing plate adding completion information;

[0009] The arc-starting plate adding device is connected to the central control system signal, and is used to add the arc-starting plate to the head end of the steel plate according to the arc-starting plate adding instruction, and generate arc-starting plate adding completion information.

[0010] In addition, a preferred structure is that the arc-extinguishing plate adding device includes an arc-extinguishing wing plate adding device arranged at the feeding end of the wing plate conveying roller and an arc-extinguishing web plate adding device arranged at the feeding end of the web plate conveying roller.

[0011] In addition, a preferred structure is that the arc-extinguishing wing plate adding device includes an arc-extinguishing wing plate assembly robot and an arc-extinguishing wing plate spot welding robot connected to the arc-extinguishing wing plate assembly robot by signal;

[0012] The arc-extinguishing wing plate assembly robot comprises an end wing plate thickness detection module, an arc-extinguishing wing plate thickness determination module connected to the end wing plate thickness detection module, and an arc-extinguishing wing plate execution module connected to the arc-extinguishing wing plate thickness determination module;

[0013] The end wing plate thickness detection module is used to obtain the thickness data of the first wing plate at the end of the steel section;

[0014] The arc-extinguishing wing plate thickness determination module is used to determine the thickness of the arc-extinguishing wing plate according to the first wing plate thickness data and based on a preset arc-extinguishing wing plate selection rule;

[0015] The arc-extinguishing wing plate execution module is used to grab the arc-extinguishing wing plate from the corresponding preset arc-extinguishing wing plate material box according to the thickness of the arc-extinguishing wing plate, and position and assemble it at the end of the steel wing plate according to the preset arc-extinguishing wing plate placement rule, and generate arc-extinguishing wing plate assembly completion information;

[0016] The arc-extinguishing wing plate spot welding robot is used to perform spot welding and fixation between the arc-extinguishing wing plate and the end of the steel wing plate according to the arc-extinguishing wing plate assembly completion information, and generate arc-extinguishing wing plate addition completion information;

[0017] The arc-extinguishing web adding device comprises an arc-extinguishing web assembly robot and an arc-extinguishing web spot welding robot connected to the arc-extinguishing web assembly robot by signal;

[0018] The arc-extinguishing web assembly robot comprises an end web thickness detection module, an arc-extinguishing web thickness determination module connected to the end web thickness detection module, and an arc-extinguishing web execution module connected to the arc-extinguishing web thickness determination module; wherein,

[0019] The end web thickness detection module is used to obtain the first web thickness data of the end of the steel section;

[0020] The arc-extinguishing web thickness determination module is used to determine the arc-extinguishing web thickness according to the first web thickness data and based on a preset arc-extinguishing web selection rule;

[0021] The arc-quenching web execution module is used to grab the arc-quenching web from the corresponding preset arc-quenching web material box according to the thickness of the arc-quenching web, and position and assemble it at the end of the steel web according to the preset arc-quenching web placement rule, and generate arc-quenching web assembly completion information;

[0022] The arc-extinguishing web spot welding robot is used to spot-weld and fix the arc-extinguishing web to the end of the steel web according to the arc-extinguishing web assembly completion information, and generate arc-extinguishing web addition completion information.

[0023] In addition, a preferred structure is that the preset arc-extinguishing wing plate selection rule is:

[0024] When the thickness of the steel wing plate is 10-20 mm, the thickness of the arc-extinguishing wing plate is set to 10 mm;

[0025] When the thickness of the steel wing plate is 22-30 mm, the thickness of the arc-extinguishing wing plate is set to 22 mm;

[0026] When the thickness of the steel wing plate is 32-40 mm, the thickness of the arc-extinguishing wing plate is set to 32 mm;

[0027] The preset arc-extinguishing web selection rule is:

[0028] The thickness of the arc-extinguishing web is the same as the thickness of the steel web.

[0029] In addition, a preferred structure is that the preset arc-extinguishing wing plate placement rule is:

[0030] The arc-extinguishing wing plate is placed at the end of the center line of the steel wing plate in the width direction and is flush with the upper plane of the steel wing plate;

[0031] The preset arc-extinguishing web placement rule is:

[0032] The arc-extinguishing web is placed on the side of the end of the steel web in the width direction and is flush with the thickness surface of the steel web.

[0033] In addition, a preferred structure is that the arc-striking plate adding device includes an arc-striking wing plate adding device arranged at the discharge end of the wing plate conveying roller and an arc-striking web plate adding device arranged at the discharge end of the web plate conveying roller.

[0034] In addition, a preferred structure is that the arc-striking wing plate adding device includes an arc-striking wing plate assembly robot and an arc-striking wing plate spot welding robot connected to the arc-striking wing plate assembly robot by signal;

[0035] The arc-striking wing plate assembly robot comprises a head end wing plate thickness detection module, an arc-striking wing plate thickness determination module connected to the head end wing plate thickness detection module, and an arc-striking wing plate execution module connected to the arc-striking wing plate thickness determination module;

[0036] The first end wing plate thickness detection module is used to obtain the second wing plate thickness data of the first end of the steel section;

[0037] The arc-striking wing plate thickness determination module is used to determine the thickness of the arc-striking wing plate according to the second wing plate thickness data and based on a preset arc-striking wing plate selection rule;

[0038] The arc-striking wing plate execution module is used to grab the arc-striking wing plate from the corresponding preset arc-striking wing plate material box according to the thickness of the arc-striking wing plate, and position and assemble it at the head end of the steel wing plate according to the preset arc-striking wing plate placement rule, and generate arc-striking wing plate assembly completion information;

[0039] The arc-striking wing plate spot welding robot is used to perform spot welding and fixation between the arc-striking wing plate and the head end of the steel wing plate according to the arc-striking wing plate assembly completion information, and generate arc-striking wing plate addition completion information;

[0040] The arc-striking web adding device comprises an arc-striking web assembly robot and an arc-striking web spot welding robot connected to the arc-striking web assembly robot by signal;

[0041] The arc-striking web assembly robot comprises a head end web thickness detection module, an arc-striking web thickness determination module connected to the head end web thickness detection module, and an arc-striking web execution module connected to the arc-striking web thickness determination module; wherein,

[0042] The first end web thickness detection module is used to obtain the second web thickness data of the first end of the steel section;

[0043] The arc-striking web thickness determination module is used to determine the arc-striking web thickness according to the second web thickness data and based on a preset arc-striking web selection rule;

[0044] The arc-striking web execution module is used to grab the arc-striking web from the corresponding preset arc-striking web material box according to the thickness of the arc-striking web, and position and assemble it at the head end of the steel web according to the preset arc-striking web placement rule, and generate arc-striking web assembly completion information;

[0045] The arc-striking web spot welding robot is used to spot-weld and fix the arc-striking web and the head end of the steel web according to the arc-striking web assembly completion information, and generate arc-striking web addition completion information.

[0046] In addition, a preferred structure is that the preset arc-starting wing plate selection rule is:

[0047] When the thickness of the steel wing plate is 10-20 mm, the thickness of the arc-starting wing plate is set to 10 mm;

[0048] When the thickness of the steel wing plate is 22-30 mm, the thickness of the arc-starting wing plate is set to 22 mm;

[0049] When the thickness of the steel wing plate is 32-40 mm, the thickness of the arc-starting wing plate is set to 32 mm;

[0050] The preset arc-starting web selection rule is:

[0051] The thickness of the arc-striking web is the same as the thickness of the steel section web.

[0052] In addition, a preferred structure is that the preset arc-starting wing plate placement rule is:

[0053] The arc-starting wing plate is placed at the beginning of the center line of the steel wing plate in the width direction and is flush with the upper plane of the steel wing plate;

[0054] The preset arc-starting web placement rule is:

[0055] The arc-starting web is placed on the side of the width direction of the head end of the steel web and is flush with the thickness surface of the steel web.

[0056] The method for adding arc-starting and arc-extinguishing plates online provided by the present invention uses the above-mentioned arc-starting and arc-extinguishing plate online adding device to automatically add arc-starting plates and arc-extinguishing plates to both ends of the steel plate to be welded in the roller conveyor section of the steel assembly welding and straightening automated production line, and comprises the following steps:

[0057] The incoming material position monitoring device is used to obtain the terminal arrival information of the terminal of the steel plate to be welded reaching the feeding end of the conveyor roller;

[0058] The central control system is linked with the roller control system of the steel section welding and straightening automated production line according to the terminal arrival information to control the conveying roller to pause for the first time and generate an arc extinguishing plate adding instruction;

[0059] The arc extinguishing plate adding device adds the arc extinguishing plate to the end of the profiled steel plate according to the arc extinguishing plate adding instruction, and generates arc extinguishing plate adding completion information;

[0060] The central control system controls the start of the conveying roller conveyor in linkage with the roller conveyor control system according to the completion information of adding the arc extinguishing plate, so that the conveying roller conveyor continues to convey the steel plate with the arc extinguishing plate added;

[0061] The incoming material position monitoring device obtains the information that the head end of the steel plate with the arc extinguishing plate added reaches the discharge end of the conveyor roller;

[0062] The central control system is linked with the roller control system according to the head end arrival information to control the conveying roller to pause for the second time and generate an arc-starting plate adding instruction;

[0063] The arc-starting plate adding device adds the arc-starting plate to the head end of the steel plate to which the arc-extinguishing plate is added according to the arc-starting plate adding instruction, and generates arc-starting plate adding completion information;

[0064] The central control system controls the start-up of the conveying roller in conjunction with the roller control system based on the information of completing the addition of the arc-starting plate, so as to deliver the steel sheet with the added arc-starting plate and arc-extinguishing plate into the welding and straightening integrated machine of the steel assembly, welding and straightening automated production line, and complete the automatic addition of arc-starting plates and arc-extinguishing plates at both ends of the steel sheet to be welded in the roller transport section of the steel assembly, welding and straightening automated production line.

[0065] It can be seen from the above technical scheme that the online adding device and method of arc-extinguishing plates provided by the present invention monitors the position of the steel plate to be welded conveyed on the conveyor roller by means of the incoming material position monitoring device. When the end of the steel plate reaches the feeding end of the conveyor roller, the material position monitoring device sends the generated end arrival information to the central control system. The central control system links the roller control system to control the conveyor roller to pause, and generates an arc-extinguishing plate adding instruction to control the arc-extinguishing plate adding device arranged at the feeding end to add the arc-extinguishing plate to the end of the steel plate. The central control system links the roller control system again to control the conveyor roller to start according to the arc-extinguishing plate adding completion information obtained from the arc-extinguishing plate adding device, so as to continue to convey the steel plate with the arc-extinguishing plate added forward. When the incoming material position monitoring device monitors that the head end of the steel plate with the arc-extinguishing plate added reaches the discharging end of the conveyor roller, The information of the head end in place is sent to the central control system, and the central control system links the roller control system to control the conveying roller to pause, and generates an arc-starting plate adding instruction to control the arc-starting plate adding device to add the arc-starting plate to the head end of the steel plate. The central control system links the roller control system again to control the start of the conveying roller according to the arc-starting plate adding completion information obtained from the arc-starting plate adding device, and continues to convey the steel plate with the added arc-starting plate and arc-extinguishing plate, and passes the steel plate through the turning frame on the steel assembly welding and straightening automatic production line, and the web and wing plate with the added arc-starting and arc-extinguishing plates are combined and sent to the assembly welding and straightening machine to complete the steel welding, which makes up for the lack of automatic addition of arc-starting and arc-extinguishing plates in the existing T / H-shaped steel assembly welding and straightening machine, can adapt to various situations in which the wing plate and the web plate are aligned or not aligned in steel structure production, and can ensure the weld quality of the steel.

[0066] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] By referring to the following description in conjunction with the accompanying drawings, and with a more complete understanding of the present invention, other objects and results of the present invention will become more apparent and easily understood.

[0068] Figure 1 Schematic diagram of the structure of an online adding device for arc striking and extinguishing plates according to an embodiment of the present invention;

[0069] Figure 2 It is a structural schematic diagram of an arc striking and extinguishing plate online adding device according to another embodiment of the present invention;

[0070] Figure 3 A schematic diagram of the placement position of the arc extinguishing plate on the wing plate according to an embodiment of the present invention;

[0071] Figure 4 Schematic diagram of the placement position of the arc quenching plate on the T-shaped steel web according to an embodiment of the present invention;

[0072] Figure 5 Schematic diagram of the placement position of the arc quenching plate on the H-shaped steel web according to an embodiment of the present invention;

[0073] Figure 6 This is a schematic structural diagram of a T-shaped steel after adding arc initiation and extinguishing plates and a wing plate and a web plate are combined according to an embodiment of the present invention;

[0074] Figure 7 This is a schematic structural diagram of the wing plate and the web plate of the H-shaped steel after adding the arc initiation and extinguishing plates according to an embodiment of the present invention;

[0075] Figure 8 A flow chart of an online method for adding an arc-initiating and extinguishing plate according to an embodiment of the present invention;

[0076] Fig. 9 The figure is a principle block diagram of a method for online adding an arc striking and extinguishing plate according to an embodiment of the present invention.

[0077] In the accompanying drawings, 11-arc-extinguishing wing plate adding device, 111-arc-extinguishing wing plate, 12-arc-extinguishing web plate adding device, 121-arc-extinguishing web plate, 13-arc-starting wing plate adding device, 131-arc-starting wing plate, 14-arc-starting web plate adding device, 141-arc-starting web plate, 2-conveyor roller, 21-wing plate conveyor roller feeding end, 22-wing plate conveyor roller discharging end, 23-web plate conveyor roller feeding end, 24-web plate conveyor roller discharging end, 3-web plate turning frame, 4-T-steel turning frame, 5-assembly welding and straightening machine, 6-steel wing plate, 7-steel web plate.

[0078] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0079] In response to the above-mentioned problem that, in the prior art, the integrated welding and straightening machine used in the automated production line for welding and straightening of steel sections lacks the function of automatically adding arc-starting and arc-extinguishing plates, and is unable to automatically add arc-starting and arc-extinguishing plates online, resulting in the inability to guarantee the weld quality of the steel sections, a device and method for online adding arc-starting and arc-extinguishing plates are proposed.

[0080] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0081] In order to illustrate the arc-initiating and extinguishing plate online adding device and method provided by the present invention, Figure 1 The structure of an arc-initiating and extinguishing plate online adding device according to an embodiment of the present invention is shown; Figure 2The structure of an arc-initiating and arc-extinguishing plate online adding device according to another embodiment of the present invention is shown; Figure 3 The placement position of the arc extinguishing plate on the wing plate according to an embodiment of the present invention is shown; Figure 4 The placement position of the arc quenching plate on the T-shaped steel web according to an embodiment of the present invention is shown; Figure 5 The placement position of the arc quenching plate on the H-shaped steel web according to an embodiment of the present invention is shown; Figure 6 The structure of the T-shaped steel after adding the arc initiation and extinguishing plates and the web plate after being combined is shown; Figure 7 The structure of the H-shaped steel after adding the arc initiation and extinguishing plates and the web plate after being combined is shown; Figure 8 The flow chart of the method for adding an arc-initiating and extinguishing plate online according to an embodiment of the present invention is shown; Fig. 9 The principle of the online adding method of the arc-initiating and arc-extinguishing plates according to an embodiment of the present invention is shown.

[0082] like Figures 1 to 7 As shown together, the arc-starting and arc-extinguishing plate online adding device provided by the present invention is used to automatically add arc-starting plates and arc-extinguishing plates in the steel section welding and straightening automated production line, including an incoming material position monitoring device, a central control system, an arc-extinguishing plate adding device and an arc-starting plate adding device; wherein,

[0083] The incoming material position monitoring device is used to monitor the end position information of the end of the steel plate arriving at the feeding end of the conveyor roller 2 and the head position information of the head of the steel plate arriving at the discharging end of the conveyor roller 2 during the process of the steel plate to be welded being conveyed to the assembly welding and straightening machine 5 through the conveyor roller 2;

[0084] The central control system is respectively connected with the roller control system and the incoming material position monitoring device of the steel section assembly welding and straightening automatic production line by signal, and is used to control the conveying roller 2 to pause for the first time and generate an arc extinguishing plate adding instruction according to the acquired end arrival information, and to control the conveying roller 2 to pause for the second time and generate an arc starting plate adding instruction according to the acquired head arrival information; and to control the conveying roller 2 to start again according to the acquired arc extinguishing plate adding device completing the arc extinguishing plate adding information and the arc starting plate adding device completing the arc starting plate adding information;

[0085] The arc extinguishing plate adding device is connected to the central control system signal, and is used to add the arc extinguishing plate to the end of the steel plate according to the arc extinguishing plate adding instruction, and generate the arc extinguishing plate adding completion information;

[0086] The arc-starting plate adding device is connected to the central control system signal, and is used to add the arc-starting plate to the head end of the steel plate according to the arc-starting plate adding instruction, and generate the arc-starting plate adding completion information.

[0087] Among them, the incoming material position monitoring device can be realized by the visual monitoring technology in the prior art, such as image acquisition and processing technology, and laser monitoring can also be used to combine the length of the steel plate to realize the position monitoring of its end and head end. Since the above two position monitoring technologies are mature technologies in the prior art, the present invention will not go into details.

[0088] The position of the steel sheet to be welded conveyed on the conveyor roller 2 is monitored by the incoming material position monitoring device. When the end of the steel sheet reaches the feeding end of the conveyor roller, the material position monitoring device sends the generated end arrival information to the central control system. The central control system links the roller control system to control the conveyor roller to pause, and generates an arc extinguishing plate adding instruction to control the arc extinguishing plate adding device set at the feeding end to add the arc extinguishing plate to the end of the steel sheet. The central control system links the roller control system again to control the conveyor roller 2 to start according to the arc extinguishing plate adding completion information obtained from the arc extinguishing plate adding device, so as to continue to convey the steel sheet with the arc extinguishing plate added forward. When the incoming material position monitoring device detects that the head end of the steel sheet with the arc extinguishing plate added reaches the discharging end of the conveyor roller, the head end arrival information is sent to the central control system. The central control system is linked to the roller control system to control the conveying roller 2 to pause, and generates an arc-starting plate adding instruction to control the arc-starting plate adding device to add the arc-starting plate to the front end of the steel plate. The central control system is linked to the roller control system again to control the conveying roller 2 to start according to the arc-starting plate adding completion information obtained from the arc-starting plate adding device, and the steel plate with the added arc-starting plate and arc-extinguishing plate is continued to be conveyed, and the steel plate is passed through the turning frame on the steel assembly welding and straightening automatic production line, and the web and wing plate with the added arc-starting and arc-extinguishing plates are respectively combined and sent to the assembly welding and straightening machine 5 to complete the steel welding, which makes up for the lack of automatic addition of arc-starting and arc-extinguishing plates in the existing T / H-shaped steel assembly welding and straightening machine, can adapt to various situations in which the wing plate and the web plate are aligned or not aligned in steel structure production, and can ensure the weld quality of the steel.

[0089] As a preferred embodiment of the present invention, the arc-quenching plate adding device includes an arc-quenching wing plate adding device 11 arranged at the feeding end 21 of the wing plate conveying roller and an arc-quenching web plate adding device 12 arranged at the feeding end 23 of the web plate conveying roller.

[0090] Specifically, in the prior art, the conveying roller 2 of the steel section assembly welding and straightening automated production line includes a wing plate conveying roller and a web plate conveying roller, and the plates (steel plates) conveyed by the wing plate conveying roller and the web plate conveying roller are conveyed at the same time, and then the steel section web plate 7 (or T-shaped steel after assembly welding) is flipped onto the steel section wing plate 6 by a flipping frame, and after assembly, they are sent together to the assembly welding and straightening integrated machine 5 for welding.

[0091] The arc-starting and extinguishing plate online adding device provided by the present invention can be used for adding arc-starting and extinguishing plates of two types of steel (T-shaped steel and H-shaped steel). According to the type of steel (T-shaped steel and H-shaped steel), the number of steel wing plates 6 is different, so the number of wing plate conveying rollers is different.

[0092] like Figure 2 As shown, for T-shaped steel, there is one wing plate conveying roller and one web plate conveying roller. After the arc-starting and arc-extinguishing plates are added to the web plate 7 of the steel section, it is flipped onto the wing plate conveying roller by the web plate flipping frame 3, and then combined with the steel wing plate 6 with the arc-starting and arc-extinguishing plates added, it is sent to the assembly welding and straightening machine 5 for welding to form a T-shaped steel.

[0093] like Figure 1 As shown, for H-shaped steel, there are two wing plate conveying rollers and one web plate conveying roller. After the arc-starting and arc-extinguishing plates are added to the web plate 7 of the steel section, it is flipped to the first wing plate conveying roller through the web plate flipping frame 3, and is combined with the first steel wing plate 6 with the arc-starting and arc-extinguishing plates added, and then sent to the first welding and straightening machine 5 for welding. After the T-shaped steel is formed, the T-shaped steel is flipped to the second wing plate conveying roller through the T-shaped steel flipping frame 4, and is combined with the second steel wing plate 6 with the arc-starting and arc-extinguishing plates added, and then sent to the second welding and straightening machine 5 for welding.

[0094] As a preferred solution of the present invention, the arc-extinguishing wing plate adding device 11 includes an arc-extinguishing wing plate assembly robot and an arc-extinguishing wing plate spot welding robot connected to the arc-extinguishing wing plate assembly robot by signal;

[0095] The arc-extinguishing wing plate assembly robot includes an end wing plate thickness detection module, an arc-extinguishing wing plate thickness determination module connected to the end wing plate thickness detection module, and an arc-extinguishing wing plate execution module connected to the arc-extinguishing wing plate thickness determination module;

[0096] The end wing plate thickness detection module is used to obtain the thickness data of the first wing plate at the end of the steel section;

[0097] An arc-extinguishing wing plate thickness determination module, used to determine the thickness of the arc-extinguishing wing plate according to the first wing plate thickness data and based on a preset arc-extinguishing wing plate selection rule;

[0098] The arc-extinguishing wing plate execution module is used to grab the arc-extinguishing wing plate from the corresponding preset arc-extinguishing wing plate material box according to the thickness of the arc-extinguishing wing plate, and position and assemble it at the end of the steel wing plate according to the preset arc-extinguishing wing plate placement rules, and generate arc-extinguishing wing plate assembly completion information;

[0099] The arc-extinguishing wing plate spot welding robot is used to spot-weld and fix the arc-extinguishing wing plate to the end of the steel wing plate according to the arc-extinguishing wing plate assembly completion information, and generate the arc-extinguishing wing plate addition completion information;

[0100] The arc-extinguishing web adding device 12 includes an arc-extinguishing web assembly robot and an arc-extinguishing web spot welding robot connected to the arc-extinguishing web assembly robot by signal;

[0101] The arc-extinguishing web assembly robot includes an end web thickness detection module, an arc-extinguishing web thickness determination module connected to the end web thickness detection module, and an arc-extinguishing web execution module connected to the arc-extinguishing web thickness determination module; wherein,

[0102] The end web thickness detection module is used to obtain the first web thickness data at the end of the steel section;

[0103] An arc-extinguishing web thickness determination module, used to determine the arc-extinguishing web thickness according to the first web thickness data and based on a preset arc-extinguishing web selection rule;

[0104] The arc-quenching web execution module is used to grab the arc-quenching web from the corresponding preset arc-quenching web material box according to the thickness of the arc-quenching web, and position and assemble it at the end of the steel web according to the preset arc-quenching web placement rules, and generate arc-quenching web assembly completion information;

[0105] The arc-extinguishing web spot welding robot is used to spot-weld and fix the arc-extinguishing web and the end of the steel web according to the arc-extinguishing web assembly completion information, and generate the arc-extinguishing web addition information.

[0106] Specifically, along the conveying direction of the conveying pipeline 2 (wing plate conveying roller and web plate conveying roller), an arc extinguishing plate adding workstation (arc extinguishing wing plate adding workstation and arc extinguishing web plate adding workstation) is set at the loading end of the conveying pipeline 2, and the arc extinguishing plate adding workstation is provided with an arc extinguishing plate adding device (arc extinguishing wing plate adding device 11 and arc extinguishing web plate adding device 12), which is used to execute the arc extinguishing plate adding instruction issued by the central control system, and the addition of arc extinguishing wing plates 111 and arc extinguishing web plates 121 is carried out synchronously.

[0107] As a preferred solution of the present invention, the preset arc-extinguishing wing plate selection rule is:

[0108] When the thickness of the steel wing plate 6 is 10-20 mm, the thickness of the arc-extinguishing wing plate 111 is set to 10 mm;

[0109] When the thickness of the steel wing plate 6 is 22-30 mm, the thickness of the arc-extinguishing wing plate 111 is set to 22 mm;

[0110] When the thickness of the steel wing plate 6 is 32-40 mm, the thickness of the arc-extinguishing wing plate 111 is set to 32 mm;

[0111] The default arc-extinguishing web selection rules are:

[0112] The thickness of the arc-extinguishing web 121 is the same as the thickness of the steel web 7 .

[0113] Specifically, the arc-extinguishing wing plate 111 is stored in a corresponding material box. According to actual experience, the material box of the arc-extinguishing wing plate 111 is preferably, but not limited to, 3 groups, and the material box of the arc-extinguishing web plate 121 is preferably, but not limited to, 8 groups. When the thickness of the steel wing plate 6 is 10-20 mm, the thickness of the arc-extinguishing wing plate 111 is 10 mm; when the thickness of the steel wing plate 6 is 22-30 mm, the thickness of the arc-extinguishing wing plate 111 is 22 mm; when the thickness of the steel wing plate 6 is 32-40 mm, the thickness of the arc-extinguishing wing plate 111 is 32 mm. The arc-extinguishing web plate 121 has the same thickness as the steel web plate 7, so it can be preferably, but not limited to, 8 groups according to the type of T / H steel web plate of the production line: 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm.

[0114] As a preferred solution of the present invention, the preset arc-extinguishing wing plate placement rule is:

[0115] The arc-extinguishing wing plate 111 is placed at the end of the center line of the steel wing plate 6 in the width direction and is flush with the upper plane of the steel wing plate 6;

[0116] The default arc quenching web placement rules are:

[0117] The arc-extinguishing web 121 is placed on the side of the end of the steel web 7 in the width direction and is flush with the thickness surface of the steel web 7 .

[0118] Specifically, Figures 3 to 5 As shown, the number of arc-extinguishing wing plates 111 at the ends of the T-shaped steel and H-shaped steel wing plates is the same, the number of arc-extinguishing web plates 121 of the T-shaped steel is one, and the number of arc-extinguishing web plates 121 of the H-shaped steel is two.

[0119] As a preferred embodiment of the present invention, the arc-striking plate adding device includes an arc-striking wing plate adding device 13 arranged at the discharge end 22 of the wing plate conveying roller and an arc-striking web plate adding device 14 arranged at the discharge end 24 of the web plate conveying roller.

[0120] As a preferred solution of the present invention, the arc-striking wing plate adding device 13 includes an arc-striking wing plate assembly robot and an arc-striking wing plate spot welding robot connected to the arc-striking wing plate assembly robot by signal;

[0121] The arc-striking wing plate assembly robot comprises a head end wing plate thickness detection module, an arc-striking wing plate thickness determination module connected to the head end wing plate thickness detection module, and an arc-striking wing plate execution module connected to the arc-striking wing plate thickness determination module;

[0122] The first end wing plate thickness detection module is used to obtain the thickness data of the second wing plate at the first end of the steel section;

[0123] An arc-striking wing plate thickness determination module, used to determine the thickness of the arc-striking wing plate according to the second wing plate thickness data and based on a preset arc-striking wing plate selection rule;

[0124] The arc-striking wing plate execution module is used to grab the arc-striking wing plate from the corresponding preset arc-striking wing plate material box according to the thickness of the arc-striking wing plate, and position and assemble it at the head end of the steel wing plate according to the preset arc-striking wing plate placement rules, and generate arc-striking wing plate assembly completion information;

[0125] The arc-starting wing plate spot welding robot is used to spot-weld and fix the arc-starting wing plate to the head end of the steel wing plate according to the arc-starting wing plate assembly completion information, and generate the arc-starting wing plate addition completion information;

[0126] The arc-starting web adding device comprises an arc-starting web assembly robot and an arc-starting web spot welding robot connected to the arc-starting web assembly robot by signal;

[0127] The arc-striking web assembly robot comprises a head end web thickness detection module, an arc-striking web thickness determination module connected to the head end web thickness detection module, and an arc-striking web execution module connected to the arc-striking web thickness determination module; wherein,

[0128] The first end web thickness detection module is used to obtain the second web thickness data of the first end of the steel section;

[0129] An arc-striking web thickness determination module, used to determine the arc-striking web thickness according to the second web thickness data and based on a preset arc-striking web selection rule;

[0130] The arc-striking web execution module is used to grab the arc-striking web from the corresponding preset arc-striking web material box according to the thickness of the arc-striking web, and position and assemble it at the head end of the steel web according to the preset arc-striking web placement rules, and generate arc-striking web assembly completion information;

[0131] The arc-striking web spot welding robot is used to spot-weld and fix the arc-striking web and the head end of the steel web according to the arc-striking web assembly completion information, and generate the arc-striking web addition information.

[0132] Specifically, along the conveying direction of the conveying pipeline 2 (wing plate conveying roller and web plate conveying roller), an arc-starting plate adding workstation (arc-starting wing plate adding workstation and arc-starting web plate adding workstation) is set at the discharge end of the conveying pipeline 2, and the arc-starting plate adding workstation is provided with an arc-starting plate adding device (arc-starting wing plate adding device 13 and arc-starting web plate adding device 14), which is used to execute the arc-starting plate adding instruction issued by the central control system, and the addition of arc-starting wing plates 131 and arc-starting web plates 141 is carried out synchronously.

[0133] As a preferred solution of the present invention, the preset arc-starting wing plate selection rule is:

[0134] When the thickness of the steel wing plate 6 is 10-20 mm, the thickness of the arc-starting wing plate 131 is set to 10 mm;

[0135] When the thickness of the steel wing plate 6 is 22-30 mm, the thickness of the arc-starting wing plate 131 is set to 22 mm;

[0136] When the thickness of the steel wing plate 6 is 32-40 mm, the thickness of the arc-starting wing plate 131 is set to 32 mm;

[0137] The default arc-starting web selection rules are:

[0138] The thickness of the arc-striking web 141 is the same as the thickness of the steel web 7 .

[0139] As a preferred solution of the present invention, the preset arc-starting wing plate placement rule is:

[0140] The arc-starting wing plate 131 is placed at the beginning of the center line of the width direction of the steel wing plate 6 and is flush with the upper plane of the steel wing plate 6;

[0141] The default arc-starting web placement rules are:

[0142] The arc-striking web 141 is placed on the side of the head end of the steel web 7 in the width direction and is flush with the thickness surface of the steel web 7 .

[0143] like Figure 8 and Fig. 9 As shown, the method for adding arc-starting and arc-extinguishing plates online provided by the present invention uses the arc-starting and arc-extinguishing plate online adding device of the present invention as described above to automatically add arc-starting plates and arc-extinguishing plates to both ends of the steel plate to be welded in the roller conveyor section of the steel assembly welding and straightening automated production line, comprising the following steps:

[0144] Step S1, obtaining the terminal arrival information of the terminal of the steel plate to be welded reaching the feeding end of the conveyor roller through the incoming material position monitoring device;

[0145] Step S2: The central control system is linked with the roller control system of the steel section welding and straightening automated production line according to the terminal arrival information to control the conveying roller 2 to pause for the first time and generate an arc extinguishing plate adding instruction;

[0146] Step S3, the arc extinguishing plate adding device adds the arc extinguishing plate to the end of the profiled steel plate according to the arc extinguishing plate adding instruction, and generates arc extinguishing plate adding completion information;

[0147] Step S4, the central control system controls the conveyor roller 2 to start in conjunction with the roller control system according to the completion of the arc-extinguishing plate addition information, so that the conveyor roller 2 continues to convey the steel plate with the arc-extinguishing plate added;

[0148] Step S5, the incoming material position monitoring device obtains the information that the front end of the steel plate with the arc-extinguishing plate added reaches the discharge end of the conveyor roller 2;

[0149] Step S6, the central control system is linked with the roller control system according to the head end arrival information to control the conveying roller 2 to pause for the second time and generate an arc-starting plate adding instruction;

[0150] Step S7, the arc-starting plate adding device adds the arc-starting plate to the head end of the steel plate to which the arc-extinguishing plate is added according to the arc-starting plate adding instruction, and generates arc-starting plate adding completion information;

[0151] Step S8, the central control system controls the start-up of the conveying roller 2 in conjunction with the roller control system based on the information of completing the addition of the arc-starting plate, so as to deliver the steel sheet with the added arc-starting plate and the arc-extinguishing plate into the welding and straightening integrated machine 5 of the steel assembly welding and straightening automated production line, and complete the automatic addition of the arc-starting plate and the arc-extinguishing plate at both ends of the steel sheet to be welded in the roller transport section of the steel assembly welding and straightening automated production line.

[0152] It can be seen from the above specific embodiments that the online arc-extinguishing plate adding device and method provided by the present invention monitors the position of the steel plate to be welded conveyed on the conveyor roller by means of the incoming material position monitoring device. When the end of the steel plate reaches the feeding end of the conveyor roller, the material position monitoring device sends the generated end arrival information to the central control system. The central control system links the roller control system to control the conveyor roller to pause, and generates an arc-extinguishing plate adding instruction to control the arc-extinguishing plate adding device arranged at the feeding end to add the arc-extinguishing plate to the end of the steel plate. The central control system links the roller control system again to control the start of the conveyor roller according to the arc-extinguishing plate adding completion information obtained from the arc-extinguishing plate adding device, so as to continue to convey the steel plate with the arc-extinguishing plate added forward. When the incoming material position monitoring device monitors that the head end of the steel plate with the arc-extinguishing plate added reaches the discharging end of the conveyor roller When the front end is in place, the information of the front end being in place is sent to the central control system, which links the roller control system to control the conveying roller to pause, and generates an arc-starting plate adding instruction to control the arc-starting plate adding device to add the arc-starting plate to the front end of the steel plate. The central control system links the roller control system again to control the conveying roller to start according to the arc-starting plate adding completion information obtained from the arc-starting plate adding device, and continues to convey the steel plate with the added arc-starting plate and arc-extinguishing plate, and passes the steel plate through the turning frame on the steel assembly welding and straightening automatic production line, and combines the web and wing plates with the added arc-starting and arc-extinguishing plates and sends them to the assembly welding and straightening machine to complete the steel welding, which makes up for the lack of automatic addition of arc-starting and arc-extinguishing plates in the existing T / H-shaped steel assembly welding and straightening machine, can adapt to various situations in which the wing plate and the web plate are aligned or not aligned in steel structure production, and can ensure the weld quality of the steel.

[0153] As described above, the arc-initiating plate online adding device and method proposed in the present invention are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the arc-initiating plate online adding device and method proposed in the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. An online adding device for arc striking and extinguishing plates, characterized in that: Used to automatically add arc-starting plates and arc-extinguishing plates in the steel section welding and straightening automated production line, including a material position monitoring device, a central control system, an arc-extinguishing plate adding device and an arc-starting plate adding device; wherein, The incoming material position monitoring device is used to monitor the end position information of the end of the steel plate arriving at the feeding end of the conveyor roller and the head position information of the head of the steel plate arriving at the discharging end of the conveyor roller during the process of the steel plate to be welded being conveyed to the assembly welding and straightening machine through the conveyor roller. The central control system is respectively connected to the roller control system of the steel section welding and straightening automated production line and the incoming material position monitoring device by signal, and is used to link the roller control system to control the conveying roller to pause for the first time and generate an arc extinguishing plate adding instruction according to the acquired end arrival information; and, according to the acquired head arrival information, link the roller control system to control the conveying roller to pause for the second time and generate an arc starting plate adding instruction, and according to the acquired arc extinguishing plate adding device completing the arc extinguishing plate adding information and the arc starting plate adding device completing the arc starting plate adding information, link the roller control system again to control the conveying roller to start; The arc extinguishing plate adding device is connected to the central control system signal, and is used to add the arc extinguishing plate to the end of the steel plate according to the arc extinguishing plate adding instruction, and generate arc extinguishing plate adding completion information; The arc-starting plate adding device is connected to the central control system signal, and is used to add the arc-starting plate to the head end of the steel plate according to the arc-starting plate adding instruction, and generate arc-starting plate adding completion information.

2. The arc-initiating and extinguishing plate online adding device according to claim 1 is characterized in that: The arc-extinguishing plate adding device comprises an arc-extinguishing wing plate adding device arranged at the feeding end of the wing plate conveying roller and an arc-extinguishing web plate adding device arranged at the feeding end of the web plate conveying roller.

3. The arc-initiating and extinguishing plate online adding device according to claim 2 is characterized in that: The arc-extinguishing wing plate adding device comprises an arc-extinguishing wing plate assembly robot and an arc-extinguishing wing plate spot welding robot connected to the arc-extinguishing wing plate assembly robot by signal; The arc-extinguishing wing plate assembly robot comprises an end wing plate thickness detection module, an arc-extinguishing wing plate thickness determination module connected to the end wing plate thickness detection module, and an arc-extinguishing wing plate execution module connected to the arc-extinguishing wing plate thickness determination module; The end wing plate thickness detection module is used to obtain the thickness data of the first wing plate at the end of the steel section; The arc-extinguishing wing plate thickness determination module is used to determine the thickness of the arc-extinguishing wing plate according to the first wing plate thickness data and based on a preset arc-extinguishing wing plate selection rule; The arc-extinguishing wing plate execution module is used to grab the arc-extinguishing wing plate from the corresponding preset arc-extinguishing wing plate material box according to the thickness of the arc-extinguishing wing plate, and position and assemble it at the end of the steel wing plate according to the preset arc-extinguishing wing plate placement rule, and generate arc-extinguishing wing plate assembly completion information; The arc-extinguishing wing plate spot welding robot is used to perform spot welding and fixation between the arc-extinguishing wing plate and the end of the steel wing plate according to the arc-extinguishing wing plate assembly completion information, and generate arc-extinguishing wing plate addition completion information; The arc-extinguishing web adding device comprises an arc-extinguishing web assembly robot and an arc-extinguishing web spot welding robot connected to the arc-extinguishing web assembly robot by signal; The arc-extinguishing web assembly robot comprises an end web thickness detection module, an arc-extinguishing web thickness determination module connected to the end web thickness detection module, and an arc-extinguishing web execution module connected to the arc-extinguishing web thickness determination module; wherein, The end web thickness detection module is used to obtain the first web thickness data of the end of the steel section; The arc-extinguishing web thickness determination module is used to determine the arc-extinguishing web thickness according to the first web thickness data and based on a preset arc-extinguishing web selection rule; The arc-quenching web execution module is used to grab the arc-quenching web from the corresponding preset arc-quenching web material box according to the thickness of the arc-quenching web, and position and assemble it at the end of the steel web according to the preset arc-quenching web placement rule, and generate arc-quenching web assembly completion information; The arc-extinguishing web spot welding robot is used to spot-weld and fix the arc-extinguishing web to the end of the steel web according to the arc-extinguishing web assembly completion information, and generate arc-extinguishing web addition completion information.

4. The arc-initiating and extinguishing plate online adding device according to claim 3 is characterized in that: The preset arc-extinguishing wing plate selection rule is: When the thickness of the steel wing plate is 10-20 mm, the thickness of the arc-extinguishing wing plate is set to 10 mm; When the thickness of the steel wing plate is 22-30 mm, the thickness of the arc-extinguishing wing plate is set to 22 mm; When the thickness of the steel wing plate is 32-40 mm, the thickness of the arc-extinguishing wing plate is set to 32 mm; The preset arc-extinguishing web selection rule is: The thickness of the arc-extinguishing web is the same as the thickness of the steel web.

5. The arc-initiating and extinguishing plate online adding device according to claim 3 is characterized in that: The preset arc-extinguishing wing plate placement rule is: The arc-extinguishing wing plate is placed at the end of the center line of the steel wing plate in the width direction and is flush with the upper plane of the steel wing plate; The preset arc-extinguishing web placement rule is: The arc-extinguishing web is placed on the side of the end of the steel web in the width direction and is flush with the thickness surface of the steel web.

6. The arc-initiating and extinguishing plate online adding device according to claim 1, characterized in that: The arc-striking plate adding device comprises an arc-striking wing plate adding device arranged at the discharge end of the wing plate conveying roller and an arc-striking web plate adding device arranged at the discharge end of the web plate conveying roller.

7. The arc-initiating and extinguishing plate online adding device according to claim 6, characterized in that: The arc-striking wing plate adding device comprises an arc-striking wing plate assembly robot and an arc-striking wing plate spot welding robot connected to the arc-striking wing plate assembly robot by signal; The arc-striking wing plate assembly robot comprises a head end wing plate thickness detection module, an arc-striking wing plate thickness determination module connected to the head end wing plate thickness detection module, and an arc-striking wing plate execution module connected to the arc-striking wing plate thickness determination module; The first end wing plate thickness detection module is used to obtain the second wing plate thickness data of the first end of the steel section; The arc-striking wing plate thickness determination module is used to determine the thickness of the arc-striking wing plate according to the second wing plate thickness data and based on a preset arc-striking wing plate selection rule; The arc-striking wing plate execution module is used to grab the arc-striking wing plate from the corresponding preset arc-striking wing plate material box according to the thickness of the arc-striking wing plate, and position and assemble it at the head end of the steel wing plate according to the preset arc-striking wing plate placement rule, and generate arc-striking wing plate assembly completion information; The arc-striking wing plate spot welding robot is used to perform spot welding and fixation between the arc-striking wing plate and the head end of the steel wing plate according to the arc-striking wing plate assembly completion information, and generate arc-striking wing plate addition completion information; The arc-striking web adding device comprises an arc-striking web assembly robot and an arc-striking web spot welding robot connected to the arc-striking web assembly robot by signal; The arc-striking web assembly robot comprises a head end web thickness detection module, an arc-striking web thickness determination module connected to the head end web thickness detection module, and an arc-striking web execution module connected to the arc-striking web thickness determination module; wherein, The first end web thickness detection module is used to obtain the second web thickness data of the first end of the steel section; The arc-striking web thickness determination module is used to determine the arc-striking web thickness according to the second web thickness data and based on a preset arc-striking web selection rule; The arc-striking web execution module is used to grab the arc-striking web from the corresponding preset arc-striking web material box according to the thickness of the arc-striking web, and position and assemble it at the head end of the steel web according to the preset arc-striking web placement rule, and generate arc-striking web assembly completion information; The arc-striking web spot welding robot is used to spot-weld and fix the arc-striking web and the head end of the steel web according to the arc-striking web assembly completion information, and generate arc-striking web addition completion information.

8. The arc-initiating and extinguishing plate online adding device according to claim 7, characterized in that: The preset arc-starting wing plate selection rule is: When the thickness of the steel wing plate is 10-20 mm, the thickness of the arc-starting wing plate is set to 10 mm; When the thickness of the steel wing plate is 22-30 mm, the thickness of the arc-starting wing plate is set to 22 mm; When the thickness of the steel wing plate is 32-40 mm, the thickness of the arc-starting wing plate is set to 32 mm; The preset arc-starting web selection rule is: The thickness of the arc-striking web is the same as the thickness of the steel section web.

9. The arc-initiating and extinguishing plate online adding device according to claim 7, characterized in that: The preset arc-starting wing plate placement rule is: The arc-starting wing plate is placed at the beginning of the center line of the steel wing plate in the width direction and is flush with the upper plane of the steel wing plate; The preset arc-starting web placement rule is: The arc-starting web is placed on the side of the width direction of the head end of the steel web and is flush with the thickness surface of the steel web.

10. A method for adding arc-initiating and arc-extinguishing plates online, characterized in that: The arc-starting and arc-extinguishing plates are automatically added to the two ends of the steel plate to be welded in the roller conveyor section of the steel section welding and straightening automated production line by using the arc-starting and arc-extinguishing plates online adding device as described in any one of claims 1 to 9, comprising the following steps: The incoming material position monitoring device is used to obtain the terminal arrival information of the terminal of the steel plate to be welded reaching the feeding end of the conveyor roller; The central control system is linked with the roller control system of the steel section welding and straightening automated production line according to the terminal arrival information to control the conveying roller to pause for the first time and generate an arc extinguishing plate adding instruction; The arc extinguishing plate adding device adds the arc extinguishing plate to the end of the profiled steel plate according to the arc extinguishing plate adding instruction, and generates arc extinguishing plate adding completion information; The central control system controls the start of the conveying roller conveyor in linkage with the roller conveyor control system according to the completion information of adding the arc extinguishing plate, so that the conveying roller conveyor continues to convey the steel plate with the arc extinguishing plate added; The incoming material position monitoring device obtains the information that the head end of the steel plate with the arc extinguishing plate added reaches the discharge end of the conveyor roller; The central control system is linked with the roller control system according to the head end arrival information to control the conveying roller to pause for the second time and generate an arc-starting plate adding instruction; The arc-starting plate adding device adds the arc-starting plate to the head end of the steel plate to which the arc-extinguishing plate is added according to the arc-starting plate adding instruction, and generates arc-starting plate adding completion information; The central control system controls the start-up of the conveying roller in conjunction with the roller control system based on the information of completing the addition of the arc-starting plate, so as to deliver the steel sheet with the added arc-starting plate and arc-extinguishing plate into the welding and straightening integrated machine of the steel assembly, welding and straightening automated production line, and complete the automatic addition of arc-starting plates and arc-extinguishing plates at both ends of the steel sheet to be welded in the roller transport section of the steel assembly, welding and straightening automated production line.

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