Energy-saving and environment-friendly thick partition plate single-wire electroslag welding parameter dynamic regulation and control method

Abstract

The invention relates to the field of electroslag welding, in particular to an energy-saving and environment-friendly thick partition plate single-wire electroslag welding parameter dynamic regulation and control method, and solves the problem that current energy consumption is increased due to the fact that current power is kept unchanged and cannot be regulated according to the welding process when electroslag welding is carried out. According to the energy-saving and environment-friendly thick partition plate single-wire electroslag welding parameter dynamic regulation and control method, a control terminal and a conductive supporting seat are included, baffle adjusting structures are installed on the front portion and the rear portion of the conductive supporting seat correspondingly, four ultrasonic probes are installed on the outer sides of the baffle adjusting structures, and a first wire is fixed to one end of the conductive supporting seat; a resistance sensor is fixed to the end, connected with the conductive supporting base, of the first wire. The ultrasonic probe and the resistance sensor are used for monitoring the crystal structure of molten welding slag and the resistance change in a circuit during welding correspondingly, so that current parameters during welding are regulated and controlled in real time, and the welding efficiency of electroslag welding and the quality after welding are improved.

Description

Technical Field

[0001] The invention relates to the field of electroslag welding, and in particular to an energy-saving and environmentally friendly method for dynamically controlling welding parameters of thick-separator single-filament electroslag welding. Background Art

[0002] Electroslag welding uses the resistance heat generated by the passage of electric current through molten slag as a heat source to melt the filler metal and base material, and form a strong connection between the metal atoms after solidification. At the beginning of welding, the welding wire and the welding groove are short-circuited to start the arc, and a small amount of solid flux is continuously added. The heat of the arc is used to melt it to form liquid slag. When the slag reaches a certain depth, the feed speed of the welding wire is increased and the voltage is reduced so that the welding wire is inserted into the slag pool, the arc is extinguished, and the electroslag welding process begins. Electroslag welding mainly includes nozzle electroslag welding, non-nozzle electroslag welding, wire electrode electroslag welding, plate electrode electroslag welding, etc.

[0003] However, the current power of existing electroslag welding remains unchanged during the process and cannot be adjusted according to the welding process, resulting in increased current energy consumption; therefore, it does not meet the existing needs. In this regard, we propose an energy-saving and environmentally friendly thick partition single-wire electroslag welding parameter dynamic control method. Summary of the Invention

[0004] The purpose of the present invention is to provide an energy-saving and environmentally friendly method for dynamically controlling the welding parameters of thick partition single-wire electroslag welding, so as to solve the problems raised in the above background technology that the current power remains unchanged during electroslag welding and cannot be adjusted according to the welding process, resulting in increased current energy consumption and other problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an energy-saving and environmentally friendly thick partition single-wire electroslag welding parameter dynamic control device, comprising a control terminal and a conductive support seat, baffle adjustment structures are installed on the front and rear sides of the conductive support seat, four ultrasonic probes are installed on the outside of the baffle adjustment structure, a first wire is fixed to one end of the conductive support seat, a resistance sensor is fixed to the end where the first wire is connected to the conductive support seat, the other end of the first wire is connected to a power supply, the other end of the power supply is connected to a second wire, the other end of the second wire is fixed to a welding rod, a sliding rheostat is fixed to the end where the second wire is connected to the power supply, and the sliding rheostat and the resistance sensor are electrically connected to the control terminal.

[0006] Preferably, the baffle adjustment structure includes a connecting plate and two lifting motors, the lifting motors are fixed on the ground, and a guide screw is fixed to the output shaft end of the lifting motor, the top end of the guide screw is inserted into the bottom of the connecting plate and is rotatably connected to the connecting plate through a roller bearing.

[0007] Preferably, a lifting slider is installed on the outer side of the guide screw, one end of the lifting slider is penetrated by the guide screw, and the lifting slider and the guide screw are transmitted by threads.

[0008] Preferably, an adjustment baffle is fixed to the end of the lifting slider facing the conductive support seat, and the ultrasonic probe is installed on the outside of the adjustment baffle.

[0009] Preferably, a cooling water pipe is installed inside the regulating baffle, a cooling water inlet pipe is fixed to one end of the cooling water pipe, and a cooling water outlet pipe is fixed to the other end of the cooling water pipe.

[0010] Preferably, the cooling water pipe is bent in a serpentine shape, and the spacing between each part is the same, and the other end of the cooling water inlet pipe is connected to a circulating water pump.

[0011] Preferably, the circulating water pump is connected to the cooling water tank via a water pumping pipe, and the other end of the cooling water outlet pipe passes through the shell of the cooling water tank and extends to the interior of the cooling water tank.

[0012] Preferably, workpiece clamping brackets are provided on both sides of the connecting plate, and the workpiece clamping brackets include a support frame, the top end of the support frame is fixed to the side of the connecting plate, and the bottom end of the support frame is fixed to the ground, one of the support frames is penetrated by the first wire and the second wire, and a double-headed hydraulic rod is fixed on the inner side of the support frame, and splints are fixed at both ends of the double-headed hydraulic rod.

[0013] Preferably, a positioning plate is fixed to the surface where the clamping plate is connected to the double-headed hydraulic rod, and the positioning plate and the clamping plate are perpendicular to each other.

[0014] A control method for a dynamic control device for controlling welding parameters of a single-wire electroslag welding of an energy-saving and environmentally friendly thick partition, the control method comprising the following steps: S1: First, place two plate-shaped workpieces to be welded vertically on a conductive support base; S2: Then use the double-headed hydraulic rod and clamping plate to clamp the workpiece from the top and bottom of the workpiece, and ensure that the positioning plate fits the outer surface of the workpiece; S3: Use the adjustable baffle to cover the gap between the two workpieces from the bottom of the two workpieces; S4: The electroslag is placed in the gap between the two workpieces and powered by a power supply. A current is generated between the welding rod and the conductive support to melt the electroslag. S5: After the electroslag is melted, it becomes a solution. The melted solution is cooled through the cooling water inlet pipe, the cooling water outlet pipe, and the cooling water pipe. After the solution solidifies, the two workpieces are fixed. S6: During the welding process, the resistance sensor monitors the resistance change in the circuit, and the ultrasonic probe monitors the crystal change in the solution; S7: The resistance sensor and ultrasonic probe feed back the monitoring data to the control terminal. After analyzing the monitoring data, the control terminal sends an adjustment signal to the sliding rheostat to adjust the current parameters during the welding process by changing the resistance of the sliding rheostat. S8: During the welding process, the welding rod continues to move upward, and the adjustment baffle moves upward synchronously under the drive of the lifting motor, lifting slide and guide screw until the gap between the two workpieces is completely filled.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses an ultrasonic probe and a resistance sensor to monitor the crystal structure of the molten welding slag and the resistance change in the circuit during welding, thereby performing real-time regulation of the current parameters during welding, thereby improving the welding efficiency and quality of the electroslag welding, reducing current loss, and saving energy and being environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic structural diagram of the workpiece clamping bracket of the present invention; Figure 3 It is a structural schematic diagram of the baffle adjustment structure of the present invention; Figure 4 This is a schematic structural diagram of the adjustment baffle of the present invention; Figure 5 It is the welding flow chart of the present invention; Figure 6 This is a flow chart of current parameter control of the present invention.

[0017] In the figure: 1. Control terminal; 2. Conductive support seat; 3. Power supply; 4. First wire; 5. Workpiece clamping bracket; 51. Support frame; 52. Double-headed hydraulic rod; 53. Clamp; 54. Positioning plate; 6. Baffle adjustment structure; 61. Connecting plate; 62. Guide screw; 63. Lifting motor; 64. Lifting slider; 65. Adjusting baffle; 66. Cooling water inlet pipe; 67. Cooling water outlet pipe; 68. Cooling water pipe; 7. Second wire; 8. Welding rod; 9. Resistance sensor; 10. Ultrasonic probe; 11. Sliding rheostat. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] like Figure 1As shown, an energy-saving and environmentally friendly thick partition single-wire electroslag welding parameter dynamic control device includes a control terminal 1 and a conductive support seat 2, baffle adjustment structures 6 are installed on the front and rear of the conductive support seat 2, and four ultrasonic probes 10 are installed on the outside of the baffle adjustment structure 6. A first wire 4 is fixed to one end of the conductive support seat 2, and a resistance sensor 9 is fixed to the end where the first wire 4 is connected to the conductive support seat 2. The other end of the first wire 4 is connected to the power supply 3, and the other end of the power supply 3 is connected to the second wire 7. The other end of the second wire 7 is fixed to the welding rod 8, and a sliding rheostat 11 is fixed to the end where the second wire 7 is connected to the power supply 3. The sliding rheostat 11 and the resistance sensor 9 are electrically connected to the control terminal 1, and the baffle adjustment structure 6 is used to block the side of the gap between the two welded plates to prevent the solution from leaking out, and the ultrasonic probe 10 and the resistance sensor 9 are used to monitor the crystal changes inside the solution and the resistance changes in the circuit respectively, and the internal current of the circuit is regulated according to the crystal changes and the resistance changes in the circuit, thereby regulating the welding current according to the electroslag welding process to achieve energy saving.

[0020] like Figure 1 、 Figure 3 and Figure 4 The baffle adjustment structure 6 includes a connecting plate 61 and two lifting motors 63. The lifting motors 63 are fixed on the ground, and a guide screw 62 is fixed to the output shaft end of the lifting motor 63. The top end of the guide screw 62 is inserted into the bottom of the connecting plate 61 and is rotatably connected to the connecting plate 61 through a roller bearing.

[0021] A lifting slider 64 is installed on the outside of the guide screw 62. One end of the lifting slider 64 is penetrated by the guide screw 62, and the lifting slider 64 and the guide screw 62 are transmitted by a thread. An adjustment baffle 65 is fixed to the end of the lifting slider 64 facing the conductive support seat 2. The ultrasonic probe 10 is installed on the outside of the adjustment baffle 65. The height of the lifting slider 64 and the adjustment baffle 65 is changed by the lifting motor 63 and the guide screw 62. After the welding is completed according to the gap at the bottom of the workpiece, the adjustment baffle 65 is moved up and continues to block the welding solution between the workpieces, thereby preventing the welding solution from leaking.

[0022] A cooling water pipe 68 is installed inside the adjusting baffle 65, and a cooling water inlet pipe 66 is fixed to one end of the cooling water pipe 68, and a cooling water outlet pipe 67 is fixed to the other end of the cooling water pipe 68. The cooling water pipe 68 is serpentine-shaped, and the spacing between each part is the same. The other end of the cooling water inlet pipe 66 is connected to a circulating water pump, and the circulating water pump is connected to the cooling water tank through a pumping pipe. The other end of the cooling water outlet pipe 67 passes through the shell of the cooling water tank and extends to the inside of the cooling water tank. When the cooling water inlet pipe 66, the cooling water outlet pipe 67 and the cooling water pipe 68 are used, the cooling water flows inside the adjusting baffle 65, thereby cooling the welding solution in the gap between the workpieces through the adjusting baffle 65, so as to ensure that the solidified welding solid will not adhere to the adjusting baffle 65.

[0023] like Figure 1 and Figure 2 As shown, workpiece clamping brackets 5 are provided on both sides of the connecting plate 61, and the workpiece clamping brackets 5 include support frames 51, the top of the support frame 51 is fixed to the side of the connecting plate 61, and the bottom of the support frame 51 is fixed to the ground. One of the support frames 51 is penetrated by the first wire 4 and the second wire 7, and a double-headed hydraulic rod 52 is fixed on the inner side of the support frame 51, and a clamping plate 53 is fixed at both ends of the double-headed hydraulic rod 52. The double-headed hydraulic rod 52 and the clamping plate 53 are used to clamp and fix the top and bottom of the workpiece, thereby ensuring that the workpiece is supported and will not tilt or shake.

[0024] A positioning plate 54 is fixed on the surface where the splint 53 is connected to the double-headed hydraulic rod 52. The positioning plate 54 and the splint 53 are perpendicular to each other. The positioning plate 54 and the splint 53 form an L-shaped structure to limit the workpiece in the length direction of the conductive support seat 2 to prevent the workpiece from sliding along the length direction of the conductive support seat 2 during welding.

[0025] like Figure 5 and Figure 6 As shown, a control method for a dynamic control device for controlling welding parameters of a single-wire electroslag welding of an energy-saving and environmentally friendly thick partition is provided, and the control method comprises the following steps: S1: First, place two plate-shaped workpieces to be welded vertically on the conductive support 2; S2: Then use the double-headed hydraulic rod 52 and the clamping plate 53 to clamp the workpiece from the top and bottom of the workpiece, and ensure that the positioning plate 54 is in contact with the outer surface of the workpiece; S3: Using the adjustable baffle 65 to block the gap between the two workpieces from the bottom of the two workpieces; S4: The electroslag is placed in the gap between the two workpieces and powered by the power supply 3. A current is generated between the welding rod 8 and the conductive support 2 to melt the electroslag. S5: The electroslag is melted into a solution, which is cooled through the cooling water inlet pipe 66, the cooling water outlet pipe 67, and the cooling water pipe 68. After the solution solidifies, the two workpieces are fixed; S6: During the welding process, the resistance sensor 9 monitors the resistance change in the circuit, and the ultrasonic probe 10 monitors the crystal change in the solution; S7: The resistance sensor 9 and ultrasonic probe 10 feed back the monitoring data to the control terminal 1. After analyzing the monitoring data, the control terminal 1 sends an adjustment signal to the sliding rheostat 11 to adjust the current parameters during the welding process by changing the resistance of the sliding rheostat 11. S8: During the welding process, the welding rod 8 continues to move upward, and the adjustment baffle 65 is synchronously moved upward under the drive of the lifting motor 63, the lifting slider 64 and the guide screw 62 until the gap between the two workpieces is completely filled.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An energy-saving and environmentally friendly thick partition single-wire electroslag welding parameter dynamic control device, comprising a control terminal (1) and a conductive support seat (2), characterized in that: Baffle adjustment structures (6) are installed at the front and rear of the conductive support seat (2), and four ultrasonic probes (10) are installed on the outside of the baffle adjustment structure (6). A first wire (4) is fixed to one end of the conductive support seat (2), and a resistance sensor (9) is fixed to the end where the first wire (4) is connected to the conductive support seat (2). The other end of the first wire (4) is connected to a power supply (3), and the other end of the power supply (3) is connected to a second wire (7). A welding rod (8) is fixed to the other end of the second wire (7), and a sliding rheostat (11) is fixed to the end where the second wire (7) is connected to the power supply (3). The sliding rheostat (11) and the resistance sensor (9) are electrically connected to the control terminal (1).

2. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 1, characterized in that: The baffle adjustment structure (6) includes a connecting plate (61) and two lifting motors (63), wherein the lifting motors (63) are fixed on the ground, and a guide screw (62) is fixed to the output shaft end of the lifting motor (63), and the top end of the guide screw (62) is inserted into the bottom of the connecting plate (61) and is rotatably connected to the connecting plate (61) through a roller bearing.

3. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 2, characterized in that: A lifting slider (64) is installed on the outer side of the guide screw (62), one end of the lifting slider (64) is penetrated by the guide screw (62), and the lifting slider (64) and the guide screw (62) are driven by threads.

4. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 3, characterized in that: An adjustment baffle (65) is fixed to the end of the lifting slider (64) facing the conductive support seat (2), and the ultrasonic probe (10) is installed on the outside of the adjustment baffle (65).

5. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 4, characterized in that: A cooling water pipe (68) is installed inside the regulating baffle (65), a cooling water inlet pipe (66) is fixed to one end of the cooling water pipe (68), and a cooling water outlet pipe (67) is fixed to the other end of the cooling water pipe (68).

6. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 5, characterized in that: The cooling water pipe (68) is bent in a serpentine shape, and the spacing between each part is the same. The other end of the cooling water inlet pipe (66) is connected to a circulating water pump.

7. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 6, characterized in that: The circulating water pump is connected to the cooling water tank via a water pumping pipe, and the other end of the cooling water outlet pipe (67) penetrates the shell of the cooling water tank and extends to the interior of the cooling water tank.

8. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 7, characterized in that: Both sides of the connecting plate (61) are provided with workpiece clamping brackets (5), and the workpiece clamping brackets (5) include support brackets (51), the top end of the support bracket (51) is fixed to the side of the connecting plate (61), and the bottom end of the support bracket (51) is fixed to the ground, one of the support brackets (51) is penetrated by the first wire (4) and the second wire (7), and a double-headed hydraulic rod (52) is fixed on the inner side of the support bracket (51), and clamping plates (53) are fixed to both ends of the double-headed hydraulic rod (52).

9. The energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 8, characterized in that: A positioning plate (54) is fixed to the surface where the clamping plate (53) is connected to the double-headed hydraulic rod (52), and the positioning plate (54) and the clamping plate (53) are perpendicular to each other.

10. The control method of the energy-saving and environmentally friendly thick separator single-wire electroslag welding parameter dynamic control device according to claim 9, characterized in that: The control method comprises the following steps: S1: First, two plate-shaped workpieces to be welded are placed vertically on the conductive support seat (2); S2: Then, the workpiece is clamped from the top and bottom of the workpiece using a double-headed hydraulic rod (52) and a clamping plate (53), and the positioning plate (54) is ensured to fit the outer surface of the workpiece; S3: Using the adjusting baffle (65) to block the gap between the two workpieces from the bottom of the two workpieces; S4: placing the electroslag in the gap between the two workpieces and supplying power through the power supply (3), so that a current is generated between the welding rod (8) and the conductive support seat (2) to melt the electroslag; S5: The electroslag is melted to form a solution, and the melted solution is cooled through a cooling water inlet pipe (66), a cooling water outlet pipe (67), and a cooling water pipe (68). After the solution solidifies, the two workpieces are fixed; S6: During the welding process, the resistance sensor (9) monitors the resistance change in the circuit, and the ultrasonic probe (10) monitors the crystal change in the solution; S7: The resistance sensor (9) and the ultrasonic probe (10) feed back the monitoring data to the control terminal (1). After the control terminal (1) analyzes the monitoring data, the control terminal (1) sends an adjustment signal to the sliding rheostat (11) to adjust the current parameters during the welding process by changing the resistance of the sliding rheostat (11); S8: During the welding process, the welding rod (8) continuously moves upward, and the adjustment baffle (65) simultaneously moves upward under the drive of the lifting motor (63), the lifting slider (64) and the guide screw (62) until the gap between the two workpieces is completely filled.

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