A welding device and welding method for electromagnetic chuck shell in steel plant

Abstract

The invention relates to the technical field of welding, and discloses a steel plant electromagnetic chuck shell welding device and a welding method thereof, comprising a clamping assembly and a welding assembly; the edges of the electromagnetic chuck shell are respectively constrained by the clamping assembly; the welding device is driven to any position by the welding assembly, and during the welding process, if the weld is a straight line, the welding device is driven to make a straight line motion by a third driving motor; if the weld is an arc, the welding device is driven to make an arc motion by a second driving motor; during the welding process, the welding parameters are monitored in real time, and the real-time monitored welding current, welding voltage and protective gas flow are compared with corresponding standard intervals respectively; if any one item does not belong to the standard interval during the welding process, an alarm is immediately issued through an alarm; if any one item does not belong to the standard interval during the welding process, a welding safety factor is calculated, and the welding safety factor is compared with a welding safety factor threshold to monitor the stability of the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a steel plant electromagnetic chuck shell welding device and a welding method thereof. Background Art

[0002] In the production process of steel mills, electromagnetic chucks are important lifting and handling tools, and the welding quality of their shells directly affects the stability and safety of the equipment.

[0003] The traditional shell welding has the following problems:

[0004] Most electromagnetic chucks are round. When welding the outer shell of the electromagnetic chuck, not only straight line welding but also arc welding is required. Traditional welding devices cannot switch between straight line welding and arc welding, which brings great inconvenience to the welding process.

[0005] It is difficult for traditional welding equipment to achieve comprehensive monitoring and control of the welding process. Most of the welding process is judged by the finished product. However, this has a lag and affects the welding efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide a steel plant electromagnetic chuck shell welding device and a welding method thereof to solve the above technical problems.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A steel plant electromagnetic chuck shell welding device, comprising a support platform, the bottom of the support platform is provided with symmetrically distributed support legs, two symmetrically distributed first lifting plates are provided on both sides of the top of the support platform, a second lifting plate is provided on the other side of the top of the support platform, a control component and an alarm are also provided on the top of the support platform, a clamping component is provided between the two first lifting plates, and a welding component is provided on the second lifting plate;

[0009] The clamping assembly is used to clamp the edge of the electromagnetic chuck housing to constrain the electromagnetic chuck housing in the longitudinal and transverse directions;

[0010] The welding assembly is used to weld the surface of the electromagnetic chuck shell, and can be used to weld any position on the surface of the electromagnetic chuck shell.

[0011] As a further description of the scheme of the present invention, the clamping assembly includes a first drive motor, which is fixed on a first lifting plate on one side, and the first drive motor is fixedly connected to a first ball screw, and the two ends of the first ball screw are respectively rotatably connected to the two first lifting plates, and the first ball screw is slidably provided with two symmetrically distributed clamping devices.

[0012] As a further description of the scheme of the present invention, the clamping device includes a mounting frame, which is fixedly connected to the sliding pair of the first ball screw, and the mounting frame is provided with two symmetrically distributed sliding grooves, and a driving cylinder is provided on the top of the mounting frame, and the output shaft of the driving cylinder is fixedly connected to one side of the top of the mounting frame, and a connecting rod is provided on the other side of the top of the mounting frame, and a connecting seat is provided at one end of the connecting rod, and a gear is provided in the connecting seat, and both sides of the gear are rotatably connected to the connecting seat, and two symmetrically distributed clamping plates are provided on both sides of the connecting rod, and a sliding block is provided on one side of the clamping plate, and the sliding block is slidably connected to the sliding groove, and a rack is provided on the adjacent side of the two clamping plates, and both of the racks are meshed with the gear.

[0013] As a further description of the scheme of the present invention, the welding assembly includes a second driving motor, the second driving motor is fixedly mounted on one side of the second lifting plate, the output shaft of the second driving motor is fixed with a first rotating rod, one end of the first rotating rod is fixedly connected to the first bevel gear, a second driving rod is provided on the side of the first bevel gear, one end of the second driving rod is rotatably connected to the top of the second lifting plate, the other end of the second driving rod is fixed with a second bevel gear, the first bevel gear is meshed with the second bevel gear, the bottom of the second bevel gear is detachably fixedly connected to a fixing frame, a third driving motor is fixedly mounted on one side of the fixing frame, a second ball screw is fixed on one side of the third driving motor that passes through the fixing frame, the two ends of the second ball screw are rotatably connected to the two side walls of the fixing frame, a fixed block is slidably provided on the second ball screw, the fixed block is fixedly connected to the sliding pair on the second ball screw, and a welding device is installed on the top of the fixed block.

[0014] As a further description of the scheme of the present invention, the welding equipment includes a fixed plate, which is installed at the bottom of the fixed block, and a welding gun is fixedly installed on the fixed plate. A fixing rod is provided on one side of the fixed plate, and one end of the fixing rod is movably connected to a clamping block, and a protective gas outlet cylinder is movably connected to the clamping block.

[0015] As a further description of the solution of the present invention, a monitoring component is provided at a reserved position on the welding equipment, and the monitoring component includes a current sensor, a voltage sensor and a gas flow sensor;

[0016] The current sensor is used to monitor the real-time welding current during the welding process, the voltage sensor is used to monitor the real-time welding voltage during the welding process, and the gas flow sensor is used to monitor the real-time flow of the shielding gas during the welding process.

[0017] A welding method for a steel plant electromagnetic chuck shell welding device, the method comprising the following steps:

[0018] Step 1: Place the electromagnetic chuck housing at a designated position on the top of the support platform, and start the first drive motor through the control component to adjust the positions of the two clamping devices;

[0019] Step 2: When the clamping device reaches the target position, the control component starts the driving cylinder to drive the mounting frame to move downward to constrain the electromagnetic chuck housing;

[0020] Step 3: After the electromagnetic chuck housing is fixed, the second drive motor and the third drive motor are started by the control component to adjust the position of the welding equipment and weld the target position;

[0021] Step 4: Real-time monitoring of welding current, welding voltage and shielding gas flow during welding;

[0022] Step 5. Compare the real-time monitored welding current, welding voltage and shielding gas flow with the corresponding standard ranges. If any one of the items in the welding process does not belong to the standard range, an alarm will be immediately sounded through the alarm. If none of the items in the welding process does not belong to the standard range, an in-depth analysis will be performed.

[0023] As a further description of the solution of the present invention, the process of in-depth analysis in step 5 includes:

[0024] Respectively obtain the data of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time during welding;

[0025] Fit the curves of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time in the coordinate system respectively;

[0026] Get the area enclosed by the welding current vs. time curve and the x-axis And the maximum welding current during welding , minimum welding current ;

[0027] Get the area enclosed by the welding voltage vs. time curve and the x-axis And the maximum welding voltage during welding , minimum welding voltage ;

[0028] Get the area enclosed by the protective gas flow rate versus time curve and the x-axis And the maximum flow rate of shielding gas during welding , minimum protective gas flow rate ;

[0029] By formula Calculating welding safety factors , They are The corresponding preset standard value will be the welding safety factor Welding safety factor Threshold Compare;

[0030] like Greater than or equal to , it means that the welding process is unstable, and an alarm is immediately issued through the alarm;

[0031] Otherwise, the welding process is normal.

[0032] The beneficial effects of the present invention are as follows: 1. The driving cylinder drives the mounting frame to move downward, and during the downward movement of the mounting frame, the two clamping plates are driven to approach the edge of the electromagnetic chuck shell to be welded. When the clamping plate on one side is close to the electromagnetic chuck shell, the mounting frame continues to move downward, and the gear is driven to rotate by the rack set on the current clamping plate. The gear rotation drives the other clamping plate to move downward against the electromagnetic chuck shell until it contacts the top of the support platform, so that the two clamping plates respectively constrain the edge of the electromagnetic chuck shell horizontally and vertically;

[0033] 2. The second drive motor drives the first rotating rod to rotate, the rotation of the first rotating rod drives the first bevel gear to rotate, the rotation of the first bevel gear drives the second bevel gear to rotate, the rotation of the second bevel gear drives the fixed frame to rotate, thereby driving the welding equipment to make circular motion, the rotation of the third drive motor drives the second ball screw to rotate, the rotation of the second ball screw drives the fixed block to move, the movement of the fixed block drives the welding equipment to make linear motion, thereby driving the welding equipment to any target position. During the welding process, if the weld is a straight line, the third drive motor is used to drive the welding equipment to make linear motion. If the weld is an arc, the second drive motor is used to drive the welding equipment to make circular motion.

[0034] 3. During the welding process, the welding parameters are monitored in real time, and the real-time monitored welding current, welding voltage and shielding gas flow are compared with the corresponding standard ranges. If any item in the welding process does not belong to the standard range, an alarm is immediately sounded through the alarm. If no item in the welding process does not belong to the standard range, the welding safety factor is calculated, and the welding safety factor is compared with the welding safety factor threshold to monitor the stability of the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Figure 1 It is a schematic diagram of the overall structure of the electromagnetic chuck shell welding device for a steel plant provided by the present invention;

[0037] Figure 2It is a schematic diagram of the structure of the clamping assembly of the electromagnetic chuck shell welding device for a steel plant provided by the present invention;

[0038] Figure 3 It is a structural schematic diagram of a clamping device of a steel plant electromagnetic chuck shell welding device provided by the present invention;

[0039] Figure 4 It is a structural schematic diagram of a welding assembly of a steel plant electromagnetic chuck shell welding device provided by the present invention;

[0040] Figure 5 It is a structural schematic diagram of a welding device for a steel plant electromagnetic chuck shell welding device provided by the present invention;

[0041] Figure 6 It is a partial schematic diagram of the welding method of the steel plant electromagnetic chuck shell welding device provided by the present invention.

[0042] In the figure, 1, support platform; 2, first lifting plate; 3, second lifting plate; 4, control component; 5, clamping component; 6, welding component; 51, first drive motor; 52, first ball screw; 53, clamping device; 61, second drive motor; 62, first rotating rod; 63, first bevel gear; 64, second bevel gear; 65, second drive rod; 66, fixed frame; 67, third drive motor; 68, second ball screw; 69, fixed block; 531, mounting frame; 532, sliding groove; 533, drive cylinder; 534, connecting rod; 535, connecting seat; 536, gear; 537, clamping plate; 538, sliding block; 539, rack; 7, welding equipment; 71, fixed plate; 72, welding gun; 73, fixed rod; 74, clamping block; 75, shielding gas outlet cylinder. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1 As shown, a steel plant electromagnetic chuck shell welding device comprises a support platform 1, the bottom of the support platform 1 is provided with symmetrically distributed support legs, two symmetrically distributed first lifting plates 2 are provided on both sides of the top of the support platform 1, a second lifting plate 3 is provided on the other side of the top of the support platform 1, a control component 4 and an alarm are also provided on the top of the support platform 1, a clamping component 5 is provided between the two first lifting plates 2, and a welding component 6 is provided on the second lifting plate 3;

[0045] See also Figure 2 , Figure 3 As shown, the clamping assembly 5 is used to clamp the edge of the electromagnetic chuck housing to constrain the electromagnetic chuck housing in the longitudinal and transverse directions;

[0046] The clamping assembly 5 includes a first drive motor 51, which is fixed on a first lifting plate 2 on one side. The first drive motor 51 is fixedly connected to a first ball screw 52, ​​and both ends of the first ball screw 52 are rotatably connected to the two first lifting plates 2 respectively. Two symmetrically distributed clamping devices 53 are slidably arranged on the first ball screw 52.

[0047] The clamping device 53 includes a mounting frame 531, which is fixedly connected to the sliding pair of the first ball screw 52. Two symmetrically distributed sliding grooves 532 are opened on the mounting frame 531. A driving cylinder 533 is provided on the top of the mounting frame 531. The output shaft of the driving cylinder 533 is fixedly connected to one side of the top of the mounting frame 531. A connecting rod 534 is provided on the other side of the top of the mounting frame 531. A connecting seat 535 is provided at one end of the connecting rod 534. A gear 536 is provided in the connecting seat 535. Both sides of the gear 536 are rotatably connected to the connecting seat 535. Two symmetrically distributed clamping plates 537 are provided on both sides of the connecting rod 534. A sliding block 538 is provided on one side of the clamping plate 537. The sliding block 538 is slidably connected to the sliding groove 532. A rack 539 is provided on one side of the two clamping plates 537. Both racks 539 are meshed with the gear 536.

[0048] When in use, the first driving motor 51 drives the first ball screw 52 to rotate, and the rotation of the first ball screw 52 drives the two clamping devices 53 to move in two different directions, so that the two clamping devices 53 are close to the edge position of the electromagnetic chuck housing, ensuring that one of the clamping plates 537 can be closely attached to the side edge of the electromagnetic chuck housing;

[0049] The driving cylinder 533 drives the mounting frame 531 to move downward. During the downward movement of the mounting frame 531, the two clamping plates 537 are driven to approach the edge of the electromagnetic suction cup shell to be welded. When the clamping plate 537 on one side is close to the electromagnetic suction cup shell, the mounting frame 531 continues to move downward, and drives the gear 536 to rotate through the rack 539 set on the current clamping plate 537. The rotation of the gear 536 drives the other clamping plate 537 to move downward along the electromagnetic suction cup shell until it contacts the top of the support platform 1, so that the two clamping plates 537 respectively constrain the edge of the electromagnetic suction cup shell horizontally and vertically.

[0050] See also Figure 4 As shown, the welding assembly 6 is used to weld the surface of the electromagnetic chuck shell, and can be used to weld any position on the surface of the electromagnetic chuck shell.

[0051] The welding assembly 6 includes a second drive motor 61, which is fixedly mounted on one side of the second lifting plate 3. The output shaft of the second drive motor 61 is fixed with a first rotating rod 62, one end of the first rotating rod 62 is fixedly connected with a first bevel gear 63, a second drive rod 65 is arranged on the side of the first bevel gear 63, one end of the second drive rod 65 is rotatably connected with the top of the second lifting plate 3, the other end of the second drive rod 65 is fixed with a second bevel gear 64, the first bevel gear 63 is meshed with the second bevel gear 64, the bottom of the second bevel gear 64 is detachably fixedly connected with a fixing frame 66, one side of the fixing frame 66 is fixedly mounted with a third drive motor 67, the third drive motor 67 passes through one side of the fixing frame 66 and is fixed with a second ball screw 68, both ends of the second ball screw 68 are rotatably connected with the two side walls of the fixing frame 66, a fixing block 69 is slidably arranged on the second ball screw 68, the fixing block 69 is fixedly connected with a sliding pair on the second ball screw 68, and a welding device 7 is installed on the top of the fixing block 69.

[0052] When in use, the second drive motor 61 drives the first rotating rod 62 to rotate, the rotation of the first rotating rod 62 drives the first bevel gear 63 to rotate, the rotation of the first bevel gear 63 drives the second bevel gear 64 to rotate, the rotation of the second bevel gear 64 drives the fixed frame 66 to rotate, thereby driving the welding equipment 7 to make an arc motion, the rotation of the third drive motor 67 drives the second ball screw 68 to rotate, the rotation of the second ball screw 68 drives the fixed block 69 to move, the movement of the fixed block 69 drives the welding equipment 7 to make a linear motion, thereby driving the welding equipment 7 to reach any target position. During the welding process, if the weld is a straight line, the third drive motor 67 rotates to drive the welding equipment 7 to make a linear motion. If the weld is an arc, the second drive motor 61 drives the welding equipment 7 to make an arc motion.

[0053] It should be noted that when the bottom of the second bevel gear 64 is detachably fixedly connected to the fixing frame 66 , the position of the connection point between the bottom of the second bevel gear 64 and the fixing frame 66 is adjustable.

[0054] See also Figure 5 As shown, the welding equipment 7 includes a fixed plate 71, which is installed at the bottom of the fixed block 69. A welding gun 72 is fixedly installed on the fixed plate 71. A fixed rod 73 is provided on one side of the fixed plate 71. One end of the fixed rod 73 is movably connected to a clamping block 74, and a protective gas outlet cylinder 75 is movably connected to the clamping block 74.

[0055] A monitoring component is provided at a reserved position on the welding device 7, and the monitoring component includes a current sensor, a voltage sensor and a gas flow sensor;

[0056] The current sensor is used to monitor the real-time welding current during the welding process, the voltage sensor is used to monitor the real-time welding voltage during the welding process, and the gas flow sensor is used to monitor the real-time flow of the shielding gas during the welding process.

[0057] A welding method for a steel plant electromagnetic chuck shell welding device, such as Figure 6 As shown, the method comprises the following steps:

[0058] Step 1: Place the electromagnetic chuck housing at a designated position on the top of the support platform 1, and start the first drive motor 51 through the control component 4 to adjust the positions of the two clamping devices 53;

[0059] Step 2: When the clamping device 53 reaches the target position, the control component 4 starts the driving cylinder 533 to drive the mounting frame 531 to move downward to constrain the electromagnetic chuck housing;

[0060] Step 3: After the electromagnetic chuck housing is fixed, the second drive motor 61 and the third drive motor 67 are started by the control component 4 to adjust the position of the welding device 7 and perform welding at the target position;

[0061] Step 4: Real-time monitoring of welding current, welding voltage and shielding gas flow during welding;

[0062] Step 5. Compare the real-time monitored welding current, welding voltage and shielding gas flow with the corresponding standard ranges. If any one of the items in the welding process does not belong to the standard range, an alarm will be immediately sounded through the alarm. If none of the items in the welding process does not belong to the standard range, an in-depth analysis will be performed.

[0063] The in-depth analysis process in step 5 includes:

[0064] Respectively obtain the data of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time during welding;

[0065] Fit the curves of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time in the coordinate system respectively;

[0066] Get the area enclosed by the welding current vs. time curve and the x-axis And the maximum welding current during welding , minimum welding current ;

[0067] Get the area enclosed by the welding voltage vs. time curve and the x-axis And the maximum welding voltage during welding , minimum welding voltage ;

[0068] Get the area enclosed by the protective gas flow rate versus time curve and the x-axis And the maximum flow rate of shielding gas during welding , minimum protective gas flow rate ;

[0069] By formula Calculating welding safety factors , They are The corresponding preset standard value is determined by the welding time and is an empirical value. Welding safety factor Threshold Compare;

[0070] like Greater than or equal to , it means that the welding process is unstable, and an alarm is immediately issued through the alarm;

[0071] Otherwise, the welding process is normal.

[0072] When in use, the welding parameters are monitored in real time during the welding process, and the real-time monitored welding current, welding voltage and shielding gas flow rate are compared with the corresponding standard intervals. If any item does not belong to the standard interval during the welding process, an alarm is immediately sounded through the alarm. If no item does not belong to the standard interval during the welding process, the welding current vs. time curve, the welding voltage vs. time curve and the shielding gas flow vs. time curve are fitted in the coordinate system respectively, and the area enclosed by the welding current vs. time curve and the x-axis is obtained according to the curves. And the maximum welding current during welding , minimum welding current ; The area enclosed by the welding voltage versus time curve and the x-axis And the maximum welding voltage during welding , minimum welding voltage ; The area enclosed by the protective gas flow rate versus time curve and the x-axis And the maximum value of shielding gas flow during welding , minimum protective gas flow rate ; Then by the formula Calculating welding safety factors , where It is expressed as the ratio of the cumulative amount of each parameter to the standard value. It is expressed as the ratio of the maximum value to the minimum value of each parameter, indicating the stability of each parameter. Welding safety factor Threshold Compare; if Greater than or equal to , it means that the welding process is unstable and an alarm is immediately issued through the alarm; otherwise, it means that the welding process is normal.

[0073] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A welding method for a steel plant electromagnetic chuck shell welding device, the method is based on the steel plant electromagnetic chuck shell welding device, characterized in that: The steel mill electromagnetic chuck shell welding device comprises a support platform (1), the bottom of the support platform (1) is provided with symmetrically distributed support legs, two symmetrically distributed first lifting plates (2) are provided on both sides of the top of the support platform (1), and a second lifting plate (3) is provided on the other side of the top of the support platform (1), and a control component (4) and an alarm are also provided on the top of the support platform (1), characterized in that a clamping component (5) is provided between the two first lifting plates (2), and a welding component (6) is provided on the second lifting plate (3); The clamping assembly (5) is used to clamp the edge of the electromagnetic chuck housing to constrain the electromagnetic chuck housing in the longitudinal and transverse directions; The welding assembly (6) is used to weld the surface of the electromagnetic chuck shell, and to weld any position on the surface of the electromagnetic chuck shell; The clamping assembly (5) comprises a first drive motor (51), the first drive motor (51) being fixed on a first lifting plate (2) on one side, the first drive motor (51) being fixedly connected to a first ball screw (52), the two ends of the first ball screw (52) being rotatably connected to the two first lifting plates (2), and the first ball screw (52) being slidably provided with two symmetrically distributed clamping devices (53); The clamping device (53) comprises a mounting frame (531), the mounting frame (531) being fixedly connected to the sliding pair of the first ball screw (52), the mounting frame (531) being provided with two symmetrically distributed sliding grooves (532), the top of the mounting frame (531) being provided with a driving cylinder (533), the output shaft of the driving cylinder (533) being fixedly connected to one side of the top of the mounting frame (531), the other side of the top of the mounting frame (531) being provided with a connecting rod (534), one end of the connecting rod (534) being provided with a connecting rod A connecting seat (535), wherein a gear (536) is provided in the connecting seat (535), and the two sides of the gear (536) are rotatably connected to the connecting seat (535), and two symmetrically distributed clamping plates (537) are provided on both sides of the connecting rod (534), and a sliding block (538) is provided on one side of the clamping plate (537), and the sliding block (538) is slidably connected to the sliding groove (532), and a rack (539) is provided on one side adjacent to the two clamping plates (537), and the two racks (539) are meshed with the gear (536); The welding assembly (6) comprises a second drive motor (61), the second drive motor (61) is fixedly mounted on one side of the second lifting plate (3), a first rotating rod (62) is fixedly mounted on the output shaft of the second drive motor (61), one end of the first rotating rod (62) is fixedly connected to a first bevel gear (63), a second drive rod (65) is arranged on the side of the first bevel gear (63), one end of the second drive rod (65) is rotatably connected to the top of the second lifting plate (3), the other end of the second drive rod (65) is fixedly mounted to a second bevel gear (64), the first bevel gear (63) and the second bevel gear (64) are connected to each other. 64), the bottom of the second bevel gear (64) is detachably fixedly connected to a fixing frame (66), one side of the fixing frame (66) is fixedly mounted with a third drive motor (67), the third drive motor (67) passes through one side of the fixing frame (66) and is fixed with a second ball screw (68), both ends of the second ball screw (68) are rotatably connected to the two side walls of the fixing frame (66), a fixing block (69) is slidably arranged on the second ball screw (68), the fixing block (69) is fixedly connected to the sliding pair on the second ball screw (68), and a welding device (7) is installed on the top of the fixing block (69); The welding device (7) comprises a fixing plate (71), the fixing plate (71) being mounted on the bottom of a fixing block (69), a welding gun (72) being fixedly mounted on the fixing plate (71), a fixing rod (73) being provided on one side of the fixing plate (71), one end of the fixing rod (73) being movably connected to a clamping block (74), and a protective gas outlet cylinder (75) being movably connected to the clamping block (74); A monitoring component is provided at a reserved position on the welding device (7), and the monitoring component includes a current sensor, a voltage sensor and a gas flow sensor; The current sensor is used to monitor the real-time welding current during welding, the voltage sensor is used to monitor the real-time welding voltage during welding, and the gas flow sensor is used to monitor the real-time flow of the shielding gas during welding; The method comprises the following steps: Step 1: placing the electromagnetic chuck housing at a designated position on the top of the support platform (1), and starting the first drive motor (51) through the control component (4) to adjust the positions of the two clamping devices (53); Step 2: When the clamping device (53) reaches the target position, the control component (4) starts the driving cylinder (533) to drive the mounting frame (531) to move downward to constrain the electromagnetic chuck housing; Step 3: After the electromagnetic chuck housing is fixed, the second drive motor (61) and the third drive motor (67) are started by the control component (4) to adjust the position of the welding device (7) and perform welding at the target position; Step 4: Real-time monitoring of welding current, welding voltage and shielding gas flow during welding; Step 5: Compare the real-time monitored welding current, welding voltage and shielding gas flow with the corresponding standard intervals. If any one of the items does not belong to the standard interval during the welding process, an alarm will be immediately issued through the alarm. If none of the items does not belong to the standard interval during the welding process, an in-depth analysis will be performed; The in-depth analysis process in step 5 includes: Respectively obtain the data of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time during welding; Fit the curves of welding current changing with time, welding voltage changing with time and shielding gas flow changing with time in the coordinate system respectively; Get the area enclosed by the welding current vs. time curve and the x-axis And the maximum welding current during welding , minimum welding current ; Get the area enclosed by the welding voltage vs. time curve and the x-axis And the maximum welding voltage during welding , minimum welding voltage ; Get the area enclosed by the protective gas flow rate versus time curve and the x-axis And the maximum flow rate of shielding gas during welding , minimum protective gas flow rate ; By formula Calculating welding safety factors , They are The corresponding preset standard value will be the welding safety factor Welding safety factor Threshold Compare; like Greater than or equal to , it means that the welding process is unstable, and an alarm is immediately issued through the alarm; Otherwise, the welding process is normal.

Images