Welding device with multi-angle adjusting function for flange production

Abstract

The invention discloses a welding device with a multi-angle adjusting function for flange production, and relates to the technical field of welding, the welding device comprises a base, a movable seat and a fixed seat are oppositely arranged at the two ends of the upper portion of the base, and a horizontal moving mechanism is arranged at the side end of the base; compared with an existing welding device, the angle adjusting mechanism is arranged so that multi-angle accurate adjustment of the welding gun can be achieved, it is guaranteed that a welding seam and the penetration reach the standard, meanwhile, the angle adjusting mechanism has the angle calibration and power-off automatic reset functions, and when accidental power failure occurs, a second electromagnet is automatically closed; the compression spring drives the rotating disc and the welding gun to reset to a non-working state perpendicular to the ground, the situation that a welding wire in the welding gun deviates from the center position of the welding gun due to gravity and other reasons is effectively avoided, and the welding quality during subsequent welding again is guaranteed. And the dual goals of efficiently collecting the smoke dust and reducing the energy consumption are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a welding device for flange production with a multi-angle adjustment function. Background Art

[0002] In modern industrial production, the welding of flanges and pipe fittings is a key process in fields such as pipeline connection and equipment assembly. Its welding quality directly affects the sealing performance, stability, and service life of the entire system. Traditional welding devices for flange production usually adopt arc welding, laser welding, etc.

[0003] For example, the patents "CN222133955U A flange welding device for flange production" and "CN222002407U A flange welding device for flange production" respectively disclose a welding device for flange production. However, the angle adjustment function of the existing welding device has obvious defects. Firstly, it cannot be flexibly adjusted according to the actual structure of the flange and pipe fittings and the welding requirements, lacks an accurate calibration mechanism, is difficult to ensure the penetration depth of the weld and the welding quality, and is prone to problems such as insecure welding and uneven welds, resulting in a decrease in the product qualification rate. Secondly, the existing welding device also has deficiencies in safety protection and environmental protection. When the welding torch is in an inclined state, it is difficult for the traditional welding device to separate the welding area from the external environment. At this time, in order to avoid the escape of smoke and dust, the power of the dust collection system is usually increased. However, this operation method not only increases energy consumption but also affects the stability of the arc during welding. Finally, the existing welding device lacks an automatic protection mechanism. When the welding device encounters unexpected power outages and other emergencies before or after welding work, if the welding wire is soft, the working end of the welding wire may tilt under the influence of gravity and other factors due to the lack of a support point, thereby affecting the subsequent welding quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for flange production with a multi-angle adjustment function to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: A welding device for flange production with multi-angle adjustment function. The welding device includes a base. At both ends above the base, a movable seat and a fixed seat are oppositely arranged. A horizontal movement mechanism is arranged at the side end of the base. A fixing mechanism and a first rotation assembly are arranged inside the movable seat. The fixing mechanism is driven to rotate by the first rotation assembly. At one end of the fixed seat close to the movable seat, a three-jaw chuck is arranged. A second rotation assembly is arranged inside the fixed seat. The three-jaw chuck is driven to rotate by the second rotation assembly. A lifting mechanism and a welding torch are arranged on the horizontal movement mechanism. Compared with the current welding device, the present invention is provided with an angle adjustment mechanism. During operation, the flange is fixed by the three-jaw chuck, and the pipe fitting is fixed by the fixing mechanism. When the flange and the pipe fitting come into contact, the angle of the welding torch is adjusted by the angle adjustment mechanism to ensure that the penetration depth and the weld seam meet the requirements. The welding torch is controlled to approach the welding part to be welded by the horizontal movement mechanism and the lifting mechanism. The fixing mechanism and the three-jaw chuck are driven to rotate at the same speed by the first rotation assembly and the second rotation assembly (the functions realized by the first rotation assembly and the second rotation assembly belong to the conventional technical means in the art, and the specific structure is not described). During the rotation process, the flange and the pipe fitting are welded by the welding torch. Finally, the angle adjustment mechanism in the present invention has the functions of angle calibration and power-off reset. On the one hand, it ensures the accuracy of the welding torch angle adjustment. On the other hand, it ensures that when a power failure occurs, the welding torch can be automatically reset to a state perpendicular to the ground in time, avoiding the phenomenon that the welding wire inside the welding torch tilts due to gravity, which affects the quality of subsequent welding of the flange again.

[0006] Further, a slide rail is arranged on the base. A slide seat is arranged on the slide rail. The movable seat is detachably installed on the slide seat. A locking device is arranged at the side end of the slide seat (the function realized by the locking device belongs to the conventional technical means in the art, and the specific structure is not described). The position of the movable seat can be adjusted by the staff according to needs through the slide rail and the slide seat, so as to facilitate the welding of pipe fittings with different lengths to the flange. The locking device is used to prevent the movable seat from shaking during the flange welding process.

[0007] Furthermore, the angle adjustment mechanism includes an adjustment base and a turntable. At one end of the adjustment base away from the welding torch, a first mounting seat is provided. At one end of the adjustment base close to the welding torch, a second mounting seat is provided. Inside the first mounting seat, an angle adjustment motor is provided. At the end of the angle adjustment motor close to the welding torch, a first adjustment gear is provided. Between the first mounting seat and the second mounting seat, an annular limiting frame is provided. Inside the annular limiting frame, a third adjustment gear is provided. The first adjustment gear and the third adjustment gear are connected by a plurality of second adjustment gears. One end of the turntable is connected to the third adjustment gear through a linkage assembly. The other end of the turntable is arranged outside the adjustment base and connected to the welding torch. Before welding, the operator can turn on the angle adjustment motor and the linkage assembly. Under the action of the first adjustment gear and the plurality of second adjustment gears, the angle adjustment motor can drive the third adjustment gear to rotate inside the annular limiting frame. Under the action of the linkage assembly, the turntable and the third adjustment gear are fixed together. Therefore, through the above technical solution, the present invention can make the third adjustment gear and the turntable rotate synchronously through the angle adjustment motor to achieve the purpose of adjusting the angle of the welding torch and ensure that the weld seam and the penetration meet the standards.

[0008] Furthermore, the linkage assembly includes two linkage frames. The two linkage frames are oppositely arranged on the upper and lower sides of the turntable close to the third adjustment gear. Inside each linkage frame, a set of second electromagnets is provided. When the second electromagnets are turned on, the third adjustment gear is magnetically attracted by the second electromagnets.

[0009] Furthermore, an induction frame is also provided at one end of the turntable close to the third adjustment gear. A chute is provided at one end of the second mounting seat close to the first mounting seat. At one end of the induction frame close to the chute, a first slider is provided. Inside the chute, two sets of second sliders are provided. Each set of second sliders is movably installed in the chute through a set of compression springs. The first slider is located between the two sets of second sliders.

[0010] When the present invention is not in operation, the welding torch is perpendicular to the ground, the first slider is located between the two groups of second sliders, and the two compression springs are in a natural state. When the angle of the welding torch of the present invention needs to be adjusted, the second electromagnet is turned on, and the turntable and the third adjusting gear are fixed together. When the angle of the welding torch is adjusted, the turntable will synchronously drive the induction frame and the first slider to rotate. At this time, one of the compression springs in the chute is in a compressed state. If the present invention encounters an unexpected power failure or other situations during the work preparation stage or after welding is completed, the second electromagnet will automatically turn off. At this time, the turntable will no longer be fixed to the third adjusting gear, and the compression spring in the chute in the compressed state will drive the turntable and the welding torch to reset to the non-operating state, that is, the welding torch is perpendicular to the ground again. Through the above technical solution, the present invention can effectively prevent the welding wire at the outlet end of the welding torch from tilting under the action of gravity due to the lack of supporting force, thereby preventing the welding wire from not being at the center position of the welding torch during subsequent welding operations, which affects the subsequent welding quality.

[0011] Further, a piezoelectric sheet is provided at one end of each group of second sliders close to the compression spring. When the angle of the welding torch of the present invention is normally adjusted, one of the compression springs will deform. At this time, the piezoelectric sheet cooperating with the deformed compression spring will generate an electrical signal due to the force. The magnitude of this electrical signal is proportional to the rotation angle of the welding torch (the specific correspondence can be obtained through multiple experiments). Through the above technical solution, the staff can indirectly calibrate the adjustment angle of the welding torch by monitoring the change of the electrical signal, and then timely adjust or repair the angle adjustment motor. A first magnetic block is provided at one end of the induction frame close to the second mounting seat, and a second magnetic block is provided at one end of the second mounting seat close to the induction frame. The first magnetic block and the second magnetic block attract each other. When the welding torch is normally adjusted in angle, under the action of the angle adjustment motor, the first magnetic block and the second magnetic block are staggered from each other. When an unexpected power failure or other situations cause the turntable and the welding torch to rotate and reset, the first magnetic block and the second magnetic block will align again and be magnetically attracted to each other. The first magnetic block and the second magnetic block can prevent the first slider and the induction frame from vibrating reciprocally due to inertia, so as to ensure that the turntable and the welding torch rotate in place at one time.

[0012] Further, the fixing mechanism includes a cylinder, a first fixing cylinder and a second fixing cylinder. The first fixing cylinder is connected to the first rotating component through a gear transmission component. The second fixing cylinder is arranged inside the first fixing cylinder. The cylinder is arranged at one end of the first fixing cylinder away from the three-jaw chuck. The working end of the cylinder is connected to the second fixing cylinder. A clamping component is arranged inside the second fixing cylinder. An isolation component is arranged at one end of the second fixing cylinder close to the three-jaw chuck. Before the welding operation, the pipe fitting is fixed by the clamping component, and the flange is fixed by the three-jaw chuck. Then, the worker drives the second fixing cylinder to move towards the three-jaw chuck through the cylinder until the flange and the pipe fitting come into contact and merge. Finally, the worker can manually move the isolation component until it contacts the surface of the flange. When the welding torch welds the flange and the pipe fitting, the isolation component inhibits the escape of smoke and dust.

[0013] Further, the clamping component includes a telescopic groove, a clamping jaw, a liquid storage groove, a piston and a first electromagnet. There are two groups of telescopic grooves, which are oppositely arranged on the upper and lower sides at one end of the second fixing cylinder away from the cylinder. There are two groups of clamping jaws, and each group of clamping jaws is connected to a group of telescopic grooves. One end of each group of clamping jaws located in the telescopic groove is wound with an adjusting spring. The liquid storage groove is arranged at one end of the second fixing cylinder close to the cylinder. Hydraulic oil is arranged in the liquid storage groove. The liquid storage groove is communicated with the two groups of telescopic grooves. The first electromagnet is arranged at one end of the liquid storage groove close to the cylinder. The piston is arranged on the side of the first electromagnet away from the cylinder. The piston is movably installed in the liquid storage groove through a return spring. One end of the piston close to the first electromagnet has magnetism. When the pipe fitting is clamped and fixed, the pipe fitting can be first placed between the two groups of clamping jaws, and then the first electromagnet is turned on. The first electromagnet drives the piston to move, so that the hydraulic oil in the liquid storage groove enters the two groups of telescopic grooves. Under the action of the hydraulic pressure, the two groups of clamping jaws clamp and fix the pipe fitting. Through the above technical solution, on the one hand, the present invention can fix pipe fittings with different diameters. On the other hand, when power failure and other phenomena occur, the clamping component can automatically loosen the pipe fitting so that the worker can take away the pipe fitting.

[0014] Further, the isolation component includes a telescopic cylinder and an isolation cover. The telescopic cylinder includes an inner cylinder and an outer cylinder. The inner cylinder is nested inside the outer cylinder. The inner cylinder has an axial sliding function but no circumferential rotation function. The isolation cover is slidably installed at one end of the inner cylinder close to the three-jaw chuck. An opening is provided at the upper end of the isolation cover. Before the welding operation, the inner cylinder can be pulled out of the outer cylinder manually or by other means, so that the isolation cover contacts the flange surface. During the welding operation, the working end of the inclined welding torch is controlled to be inserted into the opening on the isolation cover through the horizontal movement mechanism and the lifting mechanism. Then, the external dust suction system is moved to the vicinity of the opening on the isolation cover. When the first rotating component and the second rotating component drive the fixing mechanism and the three-jaw chuck to rotate, since the welding torch is in a fixed state, the isolation cover will be in a static state synchronously under the obstruction of the welding torch. At this time, the dust generated during the welding process is sucked away by the external dust suction system. The isolation cover restrains the scattering of the dust, enabling the external dust suction system to suck away the dust with a relatively small power.

[0015] Further, a rubber gasket is provided at one end of the isolation cover close to the three-jaw chuck. When the first rotating component and the second rotating component drive the fixing mechanism and the three-jaw chuck to rotate, the flange and the telescopic cylinder will rotate synchronously. By providing a rubber gasket at one end of the isolation cover close to the three-jaw chuck, the wear phenomenon between the flange and the isolation cover can be effectively avoided. In addition, the isolation cover is made of a transparent material to facilitate the staff to observe the welding situation.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Compared with the current welding device, the present invention is provided with an angle adjustment mechanism to achieve precise multi-angle adjustment of the welding torch, ensuring that the welding torch can be flexibly adjusted to the optimal angle according to the welding requirements of the flange and the pipe fitting, guaranteeing that the weld seam and the penetration meet the standards. At the same time, the angle adjustment mechanism has an angle calibration and power-off automatic reset function. When the welding torch adjusts the angle, the deformation of the compression spring will cause the corresponding piezoelectric sheet to generate an electric signal proportional to the rotation angle. By monitoring this electric signal, the staff can calibrate the angle adjustment of the welding torch in real time, timely discover and correct the angle deviation, ensuring the accuracy of the welding process. The power-off automatic reset function provides an important guarantee for the welding quality. In case of accidental power-off, the second electromagnet automatically closes, and the compression spring drives the turntable and the welding torch to reset to a non-working state perpendicular to the ground, effectively avoiding the inclination of the welding wire inside the welding torch due to gravity and other reasons, preventing the welding wire from deviating from the center position of the welding torch during subsequent welding, and ensuring the quality stability of the re-welding.

[0018] 2. Through the collaborative design of the isolation component and the dust collection system, the present invention achieves the dual goals of efficient smoke and dust collection and reduced energy consumption. The isolation hood is made of transparent material and is combined with a retractable inner and outer cylinder structure, which not only facilitates the observation of the welding state but also meets the sealing requirements for different flange sizes. In practical applications, the rubber gasket on the isolation hood is fitted to the flange surface to form a semi-closed space. When the welding torch is inserted through the opening, the smoke and dust are confined within the hood, and the suction port of the externally connected dust collection system only needs to be aligned with the opening to capture the smoke and dust particles. This design reduces the power consumption of the dust collection system on the one hand and effectively reduces the amount of smoke and dust escaping on the other hand, protecting the health of the operators.

[0019] 3. The present invention is also provided with a clamping component. By driving the piston with the first electromagnet to control the flow of hydraulic oil between the liquid storage tank and the telescopic groove, the clamping jaws can stably clamp pipe fittings with different diameters. Moreover, in case of emergencies such as power failure, the clamping component can automatically release the pipe fittings, facilitating the staff to quickly remove the workpiece, improving the convenience and safety of the operation. In addition, the slide rail and slide seat structure provided on the base enables the movable seat to be flexibly adjusted according to the length of the pipe fitting, and the staff can easily align and weld pipe fittings with different lengths to the flange accurately, significantly expanding the applicable range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic diagram of the angle adjustment mechanism structure of the present invention;

[0022] Figure 3 is a schematic diagram of the linkage component structure of the present invention;

[0023] Figure 4 is a schematic diagram of the position of the first magnetic block of the present invention;

[0024] Figure 5 is a schematic diagram of the internal structure of the second mounting seat of the present invention;

[0025] Figure 6 is a schematic diagram of the appearance of the fixing mechanism of the present invention;

[0026] Figure 7 is a schematic diagram of the internal structure of the fixing mechanism of the present invention;

[0027] Figure 8 is a schematic diagram of the isolation component structure of the present invention.

[0028] In the figure: 1, base; 2, movable seat; 21, fixing mechanism; 211, cylinder; 212, first fixing cylinder; 213, second fixing cylinder; 2131, telescopic groove; 2132, clamping jaw; 2133, liquid storage tank; 2134, piston; 2135, first electromagnet; 214, telescopic cylinder; 2141, isolation cover; 3, fixed seat; 31, three-jaw chuck; 4, welding torch; 5, lifting mechanism; 6, angle adjusting mechanism; 61, adjusting seat; 62, first mounting seat; 63, first adjusting gear; 64, annular limiting frame; 65, second adjusting gear; 66, turntable; 661, linkage frame; 6611, second electromagnet; 662, induction frame; 6621, first slider; 6622, first magnetic block; 67, second mounting seat; 671, chute; 672, second slider; 673, second magnetic block; 68, third adjusting gear; 69, angle adjusting motor; 7, horizontal moving mechanism. Detailed implementation manner

[0029] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment: As Figures 1 - 8As shown in the figure, the present invention provides a technical solution, a welding device for flange production with multi-angle adjustment function. The welding device includes a base 1. At both ends above the base 1, a movable seat 2 and a fixed seat 3 are oppositely arranged. A horizontal moving mechanism 7 is arranged at the side end of the base 1. Inside the movable seat 2, a fixing mechanism 21 and a first rotating component are arranged. The fixing mechanism 21 is driven to rotate by the first rotating component. At one end of the fixed seat 3 close to the movable seat 2, a three-jaw chuck 31 is arranged. Inside the fixed seat 3, a second rotating component is arranged. The three-jaw chuck 31 is driven to rotate by the second rotating component. An elevating mechanism 5 and a welding torch 4 are arranged on the horizontal moving mechanism 7. Compared with the current welding device, the present invention is provided with an angle adjustment mechanism 6. During operation, the flange is fixed by the three-jaw chuck 31, and the pipe fitting is fixed by the fixing mechanism 21. When the flange and the pipe fitting come into contact, the angle of the welding torch 4 is adjusted by the angle adjustment mechanism 6 to ensure that the penetration depth and the weld seam meet the requirements. The welding torch 4 is controlled to approach the welding part to be welded by the horizontal moving mechanism 7 and the elevating mechanism 5. The fixing mechanism 21 and the three-jaw chuck 31 are driven to rotate at the same speed by the first rotating component and the second rotating component (the functions realized by the first rotating component and the second rotating component belong to the conventional technical means in the art, and the specific structure is not described). During the rotation process, the flange and the pipe fitting are welded by the welding torch 4. Finally, the angle adjustment mechanism 6 in the present invention has an angle calibration and power-off reset function. On the one hand, it ensures the accuracy of the angle adjustment of the welding torch 4. On the other hand, it ensures that when a power failure occurs, the welding torch 4 can be automatically reset to a state perpendicular to the ground in time, avoiding the phenomenon that the welding wire inside the welding torch 4 tilts due to gravity, which affects the quality of subsequent welding of the flange again.

[0031] As Figure 1 shown, a slide rail is arranged on the base 1, and a slide seat is arranged on the slide rail. The movable seat 2 is detachably installed on the slide seat. A locking device is arranged at the side end of the slide seat (the function realized by the locking device belongs to the conventional technical means in the art, and the specific structure is not described). By means of the slide rail and the slide seat, it is convenient for the staff to adjust the position of the movable seat 2 according to needs, so as to facilitate the welding of pipe fittings with different lengths to the flange. The locking device is used to prevent the movable seat 2 from shaking during the flange welding process.

[0032] As Figures 2 - 5As shown in the figure, the angle adjustment mechanism 6 includes an adjustment base 61 and a turntable 66. At one end of the adjustment base 61 away from the welding torch 4 inside, a first mounting base 62 is provided. At one end of the adjustment base 61 close to the welding torch 4 inside, a second mounting base 67 is provided. Inside the first mounting base 62, an angle adjustment motor 69 is provided. At one end of the angle adjustment motor 69 close to the welding torch 4, a first adjustment gear 63 is provided. Between the first mounting base 62 and the second mounting base 67, an annular limiting frame 64 is provided. Inside the annular limiting frame 64, a third adjustment gear 68 is provided. The first adjustment gear 63 and the third adjustment gear 68 are connected by a plurality of second adjustment gears 65. One end of the turntable 66 is connected to the third adjustment gear 68 through a linkage assembly. The other end of the turntable 66 is arranged outside the adjustment base 61 and connected to the welding torch 4. Before welding in the present invention, the staff can turn on the angle adjustment motor 69 and the linkage assembly. Under the action of the first adjustment gear 63 and a plurality of second adjustment gears 65, the angle adjustment motor 69 can drive the third adjustment gear 68 to rotate inside the annular limiting frame 64. Under the action of the linkage assembly, the turntable 66 and the third adjustment gear 68 are fixed together. Therefore, through the above technical solution, the present invention can make the third adjustment gear 68 and the turntable 66 rotate synchronously through the angle adjustment motor 69, so as to achieve the purpose of adjusting the angle of the welding torch 4 and ensure that the weld seam and the penetration depth meet the standards.

[0033] As Figures 2 - 5 shown, the linkage assembly includes two linkage frames 661. The two linkage frames 661 are oppositely arranged on the upper and lower sides of one end of the turntable 66 close to the third adjustment gear 68. Inside each linkage frame 661, a set of second electromagnets 6611 is provided. When the second electromagnets 6611 are turned on, the third adjustment gear 68 is magnetically attracted by the second electromagnets 6611.

[0034] As Figures 2 - 5 shown, one end of the turntable 66 close to the third adjustment gear 68 is also provided with an induction frame 662. One end of the second mounting base 67 close to the first mounting base 62 is provided with a chute 671. One end of the induction frame 662 close to the chute 671 is provided with a first slider 6621. Inside the chute 671, two sets of second sliders 672 are provided. Each set of second sliders 672 is movably installed inside the chute 671 through a set of compression springs. The first slider 6621 is located between the two sets of second sliders 672.

[0035] When the present invention is not in operation, the welding torch 4 is perpendicular to the ground. The first slider 6621 is located between two groups of second sliders 672, and the two groups of compression springs are in a natural state. When the angle of the welding torch 4 needs to be adjusted in the present invention, the second electromagnet 6611 is turned on. The turntable 66 and the third adjusting gear 68 are fixed together. When the angle of the welding torch 4 is being adjusted, the turntable 66 will synchronously drive the induction frame 662 and the first slider 6621 to rotate. At this time, one of the compression springs in the chute 671 is in a compressed state. If the present invention encounters an accidental power failure or other situations during the work preparation stage or after the welding is completed, the second electromagnet 6611 will automatically turn off. At this time, the turntable 66 will no longer be fixed to the third adjusting gear 68, and the compression spring in the chute 671 in the compressed state will drive the turntable 66 and the welding torch 4 to return to the non-operating state, that is, the welding torch 4 is perpendicular to the ground again. Through the above technical solution, the present invention can effectively prevent the welding wire at the outlet end of the welding torch 4 from tilting under the action of gravity due to the lack of supporting force, thereby preventing the welding wire from not being at the center position of the welding torch 4 during subsequent welding operations, which affects the subsequent welding quality.

[0036] As Figures 3 - 5 shown, a set of piezoelectric sheets is provided at one end of each group of second sliders 672 close to the compression spring. When the angle of the welding torch 4 is normally adjusted in the present invention, one of the compression springs will deform. At this time, the piezoelectric sheet cooperating with the deformed compression spring will generate a set of electrical signals due to the force. The magnitude of this electrical signal is proportional to the rotation angle of the welding torch 4 (the specific correspondence relationship can be obtained through multiple experiments). Through the above technical solution, the staff can indirectly calibrate the adjustment angle of the welding torch 4 by monitoring the change of the electrical signal, and then timely adjust or repair the angle adjustment motor 69. A first magnetic block 6622 is provided at one end of the induction frame 662 close to the second mounting seat 67, and a second magnetic block 673 is provided at one end of the second mounting seat 67 close to the induction frame 662. The first magnetic block 6622 and the second magnetic block 673 attract each other. When the welding torch 4 is normally adjusting the angle, under the action of the angle adjustment motor 69, the first magnetic block 6622 and the second magnetic block 673 are staggered from each other. When an accidental power failure or other situations cause the turntable 66 and the welding torch 4 to rotate and reset, the first magnetic block 6622 and the second magnetic block 673 will align again and be magnetically attracted to each other. The first magnetic block 6622 and the second magnetic block 673 can prevent the first slider 6621 and the induction frame 662 from vibrating reciprocally due to inertia, so as to ensure that the turntable 66 and the welding torch 4 rotate in place once.

[0037] As Figure 1 、 Figures 6 - 8As shown in the figure, the fixing mechanism 21 includes a cylinder 211, a first fixing cylinder 212 and a second fixing cylinder 213. The first fixing cylinder 212 is connected to the first rotating component through a gear transmission component. The second fixing cylinder 213 is arranged inside the first fixing cylinder 212. The cylinder 211 is arranged at one end of the first fixing cylinder 212 away from the three-jaw chuck 31. The working end of the cylinder 211 is connected to the second fixing cylinder 213. A clamping component is arranged inside the second fixing cylinder 213. An isolation component is arranged at one end of the second fixing cylinder 213 close to the three-jaw chuck 31. Before the welding operation, the present invention fixes the pipe fitting through the clamping component, fixes the flange through the three-jaw chuck 31, and then the worker drives the second fixing cylinder 213 to move towards the three-jaw chuck 31 through the cylinder 211 until the flange and the pipe fitting come into contact and merge. Finally, the worker can manually move the isolation component until the isolation component contacts the surface of the flange. When the welding torch 4 welds the flange and the pipe fitting, the isolation component suppresses the escape of smoke and dust.

[0038] As Figures 6 - 8 shown, the clamping component includes two telescopic grooves 2131, two jaws 2132, a liquid storage tank 2133, a piston 2134 and a first electromagnet 2135. There are two groups of telescopic grooves 2131, which are relatively arranged on the upper and lower sides at one end of the second fixing cylinder 213 away from the cylinder 211. There are two groups of jaws 2132, and each group of jaws 2132 is connected to a group of telescopic grooves 2131. One end of each group of jaws 2132 located in the telescopic groove 2131 is wound with an adjusting spring. The liquid storage tank 2133 is arranged at one end of the second fixing cylinder 213 close to the cylinder 211. Hydraulic oil is arranged in the liquid storage tank 2133. The liquid storage tank 2133 is communicated with the two groups of telescopic grooves 2131. The first electromagnet 2135 is arranged at one end of the liquid storage tank 2133 close to the cylinder 211. The piston 2134 is arranged on the side of the first electromagnet 2135 away from the cylinder 211. The piston 2134 is movably installed in the liquid storage tank 2133 through a return spring. One end of the piston 2134 close to the first electromagnet 2135 has magnetism. When the present invention clamps and fixes the pipe fitting, the pipe fitting can be first placed between the two groups of jaws 2132, and then the first electromagnet 2135 is turned on. The piston 2134 is driven to move through the first electromagnet 2135 so that the hydraulic oil in the liquid storage tank 2133 enters the two groups of telescopic grooves 2131. Under the action of the hydraulic pressure, the two groups of jaws 2132 clamp and fix the pipe fitting. Through the above technical solution, on the one hand, the present invention can fix pipe fittings with different diameters, and on the other hand, when power failure and other phenomena occur, the clamping component can automatically release the pipe fitting so that the worker can take away the pipe fitting.

[0039] As Figures 6 - 8As shown, the isolation component includes a telescopic cylinder 214 and an isolation cover 2141. The telescopic cylinder 214 includes an inner cylinder and an outer cylinder. The inner cylinder is nested inside the outer cylinder. The inner cylinder has an axial sliding function but no circumferential rotation function. The isolation cover 2141 is slidably installed at one end of the inner cylinder close to the three-jaw chuck 31. An opening is provided at the upper end of the isolation cover 2141. Before the welding operation, the inner cylinder can be pulled out of the outer cylinder manually or by other means, so that the isolation cover 2141 contacts the flange surface. During the welding operation, the working end of the inclined welding torch 4 is controlled by the horizontal movement mechanism 7 and the lifting mechanism 5 to insert into the upper opening of the isolation cover 2141. Then, the external dust suction system is moved to the vicinity of the opening on the isolation cover 2141. When the first rotating component and the second rotating component drive the fixing mechanism 21 and the three-jaw chuck 31 to rotate, since the welding torch 4 is in a fixed state, the isolation cover 2141 will be in a static state synchronously under the obstruction of the welding torch 4. At this time, the dust generated during the welding process is sucked away by the external dust suction system. The isolation cover 2141 inhibits the scattering of dust, so that the external dust suction system can suck away the dust with a relatively small power.

[0040] As Figure 8 shown, a rubber gasket is provided at one end of the isolation cover 2141 close to the three-jaw chuck 31. When the first rotating component and the second rotating component drive the fixing mechanism 21 and the three-jaw chuck 31 to rotate, the flange and the telescopic cylinder 214 will rotate synchronously. By providing a rubber gasket at one end of the isolation cover 2141 close to the three-jaw chuck 31, the wear phenomenon between the flange and the isolation cover 2141 can be effectively avoided. In addition, the isolation cover 2141 is made of a transparent material to facilitate the staff to observe the welding situation.

[0041] Working principle of the present invention: Before the welding operation, the flange is fixed by the three-jaw chuck 31, and the pipe fitting is fixed by the clamping assembly. Then, the isolation cover 2141 is brought into contact with the surface of the flange manually or by other means. The angle of the welding torch 4 is adjusted by the angle adjustment mechanism 6. The working end of the welding torch 4 in an inclined state is inserted into the upper opening of the isolation cover 2141 through the horizontal movement mechanism 7 and the lifting mechanism 5. Then, the external dust suction system is moved to the vicinity of the opening on the isolation cover 2141. When the first rotating assembly and the second rotating assembly drive the fixing mechanism 21 and the three-jaw chuck 31 to rotate, the flange and the pipe fitting are welded by the welding torch 4. At the same time, since the welding torch 4 is in a fixed state, the isolation cover 2141 will be in a stationary state synchronously under the obstruction of the welding torch 4. At this time, the dust generated during the welding process is sucked away by the external dust suction system, and the isolation cover 2141 inhibits the scattering of the dust, enabling the external dust suction system to suck away the dust with a relatively small power. Finally, in the working preparation stage or the welding end stage of the present invention, in case of accidental power failure or other situations, the second electromagnet 6611 will automatically close. At this time, the compression spring in a compressed state in the chute 671 will drive the turntable 66 and the welding torch 4 to reset to a non-working state to prevent the welding wire at the outlet end of the welding torch 4 from tilting under the action of gravity due to the lack of supporting force.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A welding device for flange production with multi-angle adjustment function, characterized in that: The welding device includes a base (1). Opposite ends above the base (1) are provided with a movable seat (2) and a fixed seat (3). A horizontal movement mechanism (7) is provided at the side end of the base (1). Inside the movable seat (2), a fixing mechanism (21) and a first rotation assembly are provided. At one end of the fixed seat (3) close to the movable seat (2), a three-jaw chuck (31) is provided. Inside the fixed seat (3), a second rotation assembly is provided. On the horizontal movement mechanism (7), a lifting mechanism (5) and a welding torch (4) are provided. The lifting mechanism (5) and the welding torch (4) are connected by an angle adjustment mechanism (6). The angle of the welding torch (4) is adjusted through the angle adjustment mechanism (6), and the angle adjustment mechanism (6) has functions of angle calibration and power-off reset.

2. The welding device for flange production with multi-angle adjustment function according to claim 1, characterized in that: On the base (1), a slide rail is provided, and a slide seat is provided on the slide rail. The movable seat (2) is detachably installed on the slide seat, and a locking device is provided at the side end of the slide seat.

3. A welding device for flange production with a multi-angle adjustment function according to claim 1, characterized in that: The angle adjustment mechanism (6) includes an adjustment seat (61) and a turntable (66). Inside the adjustment seat (61), a first mounting seat (62) and a second mounting seat (67) are oppositely provided. Inside the first mounting seat (62), an angle adjustment motor (69) is provided. At one end of the angle adjustment motor (69) close to the welding torch (4), a first adjustment gear (63) is provided. An annular limiting frame (64) is provided between the first mounting seat (62) and the second mounting seat (67). Inside the annular limiting frame (64), a third adjustment gear (68) is provided. The first adjustment gear (63) and the third adjustment gear (68) are connected by a plurality of second adjustment gears (65). One end of the turntable (66) is connected to the third adjustment gear (68) through a linkage assembly, and the other end of the turntable (66) is provided outside the adjustment seat (61) and connected to the welding torch (4).

4. A welding device for flange production with a multi-angle adjustment function according to claim 3, characterized in that: The linkage assembly includes two linkage frames (661). The two linkage frames (661) are oppositely provided on the upper and lower sides of one end of the turntable (66) close to the third adjustment gear (68). Inside each linkage frame (661), a set of second electromagnets (6611) is provided.

5. The welding device for flange production with a multi-angle adjustment function according to claim 4, characterized in that: At one end of the turntable (66) close to the third adjustment gear (68), an induction frame (662) is further provided. At one end of the second mounting seat (67) close to the first mounting seat (62), a chute (671) is provided. At one end of the induction frame (662) close to the chute (671), a first slider (6621) is provided. Inside the chute (671), two sets of second sliders (672) are provided. Each set of second sliders (672) is movably installed in the chute (671) through a set of compression springs. The first slider (6621) is located between the two sets of second sliders (672).

6. The welding device for flange production with multi-angle adjustment function according to claim 5, characterized in that: A piezoelectric sheet is provided at one end of each second slider (672) close to the compression spring. A first magnet (6622) is provided at one end of the induction frame (662) close to the second mounting base (67). A second magnet (673) is provided at one end of the second mounting base (67) close to the induction frame (662). The first magnet (6622) and the second magnet (673) attract each other.

7. A welding device for flange production with a multi-angle adjustment function according to claim 1, characterized in that: The fixing mechanism (21) includes a cylinder (211), a first fixing cylinder (212) and a second fixing cylinder (213). The first fixing cylinder (212) is connected to the first rotating assembly through a gear transmission assembly. The second fixing cylinder (213) is arranged inside the first fixing cylinder (212). The cylinder (211) is arranged at one end of the first fixing cylinder (212) away from the three-jaw chuck (31). The working end of the cylinder (211) is connected to the second fixing cylinder (213). A clamping assembly is arranged inside the second fixing cylinder (213). An isolation assembly is arranged at one end of the second fixing cylinder (213) close to the three-jaw chuck (31).

8. A welding device for flange production with a multi-angle adjustment function according to claim 7, characterized in that: The clamping assembly includes clamping jaws (2132), a piston (2134) and a first electromagnet (2135). Two sets of telescopic grooves (2131) are oppositely arranged at one end of the inside of the second fixing cylinder (213) away from the cylinder (211). Two sets of clamping jaws (2132) are provided. Each set of clamping jaws (2132) is connected to a set of telescopic grooves (2131). One end of each set of clamping jaws (2132) located inside the telescopic groove (2131) is wound with an adjusting spring. A liquid storage tank (2133) is arranged at one end of the inside of the second fixing cylinder (213) close to the cylinder (211). The liquid storage tank (2133) is communicated with the two sets of telescopic grooves (2131). The first electromagnet (2135) is arranged at one end of the inside of the liquid storage tank (2133) close to the cylinder (211). The piston (2134) is arranged on the side of the first electromagnet (2135) away from the cylinder (211). The piston (2134) is movably installed in the liquid storage tank (2133) through a return spring.

9. The welding device for flange production with multi-angle adjustment function according to claim 7, characterized in that: The isolation assembly includes a telescopic cylinder (214) and an isolation cover (2141). The telescopic cylinder (214) includes an inner cylinder and an outer cylinder. The inner cylinder is nested inside the outer cylinder. The inner cylinder has an axial sliding function but no circumferential rotation function. The isolation cover (2141) is slidably installed at one end of the inner cylinder close to the three-jaw chuck (31). An opening is provided at the upper end of the isolation cover (2141).

10. The welding device for flange production with multi-angle adjustment function according to claim 9, characterized in that: A rubber gasket is provided at one end of the isolation cover (2141) close to the three-jaw chuck (31). The isolation cover (2141) is made of a transparent material.

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