A welding device for flange production with multi-angle adjustment function

Abstract

This invention discloses a welding device for flange production with multi-angle adjustment function, relating to the field of welding technology. The welding device includes a base, with a movable seat and a fixed seat arranged opposite each other at the upper two ends of the base. A horizontal moving mechanism is provided on the side of the base. Compared with current welding devices, this invention is equipped with an angle adjustment mechanism to achieve precise multi-angle adjustment of the welding torch, ensuring that the weld and penetration depth meet the standards. At the same time, the angle adjustment mechanism has angle calibration and automatic reset functions in case of power failure. In the event of an accidental power failure, the second electromagnet automatically shuts off, and the compression spring drives the turntable and welding torch to reset to a non-working state perpendicular to the ground. This effectively prevents the welding wire inside the welding torch from deviating from the center position of the welding torch due to gravity and other reasons, ensuring the quality of welding in subsequent welding. This invention achieves the dual goals of efficient dust collection and reduced energy consumption through the coordinated design of the isolation component and the dust collection system.

Description

Technical Field

[0001] This invention relates to the field of welding technology, specifically to a welding device for flange production with multi-angle adjustment function. Background Technology

[0002] In modern industrial production, the welding of flanges and pipe fittings is a key process in pipeline connection, equipment assembly and other fields. The welding quality directly affects the sealing, stability and service life of the entire system. Traditional flange production welding equipment usually adopts electric arc welding, laser welding and so on.

[0003] For example, patents "CN222133955U A flange welding device for flange production" and "CN222002407U A flange welding device for flange production" disclose welding devices for flange production. However, the angle adjustment function of existing welding devices has obvious defects. First, they cannot be flexibly adjusted according to the actual structure and welding requirements of flanges and pipe fittings, and lack a precise calibration mechanism, making it difficult to guarantee the penetration depth and welding quality of the weld. This easily leads to problems such as weak welds and uneven welds, resulting in a lower product qualification rate. Second, existing welding devices have shortcomings in safety protection and environmental protection. There are still shortcomings in the protection process. When the welding torch is tilted, traditional welding equipment has difficulty isolating the welding area from the external environment. In this case, in order to avoid the emission of fumes, 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 electric arc during welding. Finally, the existing welding equipment lacks an automatic protection mechanism. When the welding equipment encounters an unexpected power outage or other emergencies before or after welding, if the welding wire is relatively soft, the working end of the welding wire may tilt due to the lack of a support point and factors such as gravity, which will affect the subsequent welding quality. Summary of the Invention

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

[0005] To achieve the above objectives, 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, with a movable seat and a fixed seat arranged opposite each other at the upper ends of the base. A horizontal moving mechanism is provided at the side end of the base. A fixed mechanism and a first rotating assembly are arranged inside the movable seat, driving the fixed mechanism to rotate via the first rotating assembly. A three-jaw chuck is provided at the end of the fixed seat near the movable seat. A second rotating assembly is arranged inside the fixed seat, driving the three-jaw chuck to rotate via the second rotating assembly. A lifting mechanism and a welding torch are provided on the horizontal moving mechanism. Compared to current welding devices, the present invention provides an angle adjustment mechanism. During operation, the flange is fixed by the three-jaw chuck, and the pipe fitting is fixed by the fixed mechanism. When the flange and pipe fitting contact... The angle of the welding torch is adjusted by an angle adjustment mechanism to ensure that the penetration depth and weld meet the requirements. The welding torch is controlled to move closer to the part to be welded by a horizontal moving mechanism and a lifting mechanism. The fixing mechanism and the three-jaw chuck are driven to rotate at the same speed by a first rotating component and a second rotating component (the functions of the first rotating component and the second rotating component are conventional technical means in this field, and the specific structure is not described). During the rotation, the flange and pipe fitting are welded by the welding torch. Finally, the angle adjustment mechanism in this invention has angle calibration and power failure reset functions. On the one hand, it ensures the accuracy of the welding torch angle adjustment. On the other hand, it ensures that the welding torch can automatically reset to a vertical position in time when a power failure occurs, so as to avoid the welding wire inside the welding torch tilting due to gravity, which would affect the quality of subsequent welding of the flange.

[0006] Furthermore, the base is provided with a slide rail, and the slide rail is provided with a slide block. The movable seat is detachably installed on the slide block, and the side end of the slide block is provided with a locking device (the function of the locking device is a conventional technical means in this field, and the specific structure is not described). The slide rail and the slide block allow the staff to adjust the position of the movable seat as needed, so as to facilitate the welding of pipes of different lengths to the flange. The locking device prevents the movable seat from shaking during the flange welding process.

[0007] Furthermore, the angle adjustment mechanism includes an adjustment seat and a turntable. A first mounting seat is located at the end of the adjustment seat furthest from the welding torch, and a second mounting seat is located at the end of the adjustment seat closest to the welding torch. An angle adjustment motor is located inside the first mounting seat, and a first adjustment gear is located at the end of the angle adjustment motor closest to the welding torch. An annular limiting frame is located between the first and second mounting seats, and a third adjustment gear is located inside the annular limiting frame. The first and third adjustment gears are connected by several second adjustment gears. One end of the turntable is connected to the third adjustment gear via a linkage assembly, and the other end of the turntable is located outside the adjustment seat 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 several second adjustment gears, the angle adjustment motor drives the third adjustment gear to rotate within 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 enables the third adjustment gear and the turntable to rotate synchronously via the angle adjustment motor, thereby achieving the purpose of adjusting the welding torch angle and ensuring that the weld and penetration depth meet the standards.

[0008] Furthermore, the linkage assembly includes two linkage frames, which are arranged opposite each other on the upper and lower sides of the turntable near the third adjusting gear. Each linkage frame is equipped with a set of second electromagnets. When the second electromagnets are turned on, they magnetically attract the third adjusting gear.

[0009] Furthermore, a sensor frame is provided at the end of the turntable near the third adjusting gear, a slide groove is provided at the end of the second mounting base near the first mounting base, a first slider is provided at the end of the sensor frame near the slide groove, two sets of second sliders are provided inside the slide groove, each set of second sliders is movably mounted in the slide groove by a set of compression springs, and the first slider is located between the two sets of second sliders.

[0010] In the non-working state, the welding torch is perpendicular to the ground, the first slider is located between the two sets of second sliders, and the two sets of compression springs are in their natural state. When the welding torch angle needs to be adjusted, the second electromagnet is in the open state, and the turntable and the third adjusting gear are fixed together. When the welding torch angle is being adjusted, the turntable will synchronously drive the induction frame and the first slider to rotate. At this time, one set of compression springs in the groove is in the compressed state. If the invention encounters an unexpected power outage during the work preparation stage or welding end stage, the second electromagnet will automatically turn off. At this time, the turntable will no longer be fixed together with the third adjusting gear, and the compression springs in the groove will return the turntable and welding torch to the non-working state, that is, the welding torch is perpendicular to the ground again. Through the above technical solution, the invention can effectively avoid the welding wire at the welding torch outlet from tilting under the action of gravity due to lack of support, thereby preventing the welding wire from not being in the center position of the welding torch when subsequent welding operations are carried out, which would affect the subsequent welding quality.

[0011] Furthermore, each set of second sliders is equipped with a set of piezoelectric plates near the end of the compression spring. When the welding torch angle is adjusted normally, one set of compression springs will deform. At this time, the piezoelectric plates that cooperate with the deformed compression springs will generate a set of electrical signals due to the force. The magnitude of the electrical signal is proportional to the rotation angle of the welding torch (the specific relationship can be determined through multiple experiments). Through the above technical solution, the operator can indirectly calibrate the adjustment angle of the welding torch by monitoring the change of the electrical signal, and then adjust or repair the angle adjustment motor in a timely manner. The induction frame is equipped with a first magnetic block near the end of the second mounting base, and the second mounting base is equipped with a second magnetic block near the end of the induction frame. The first magnetic block and the second magnetic block attract each other. When the welding torch is adjusted normally, the first magnetic block and the second magnetic block are misaligned under the action of the angle adjustment motor. When an unexpected power failure occurs, causing the turntable and the welding torch to rotate and reset, the first magnetic block and the second magnetic block will realign and magnetically attract each other. The first magnetic block and the second magnetic block can prevent the first slider and the induction frame from reciprocating due to inertia, so as to ensure that the turntable and the welding torch rotate into place in one go.

[0012] Furthermore, the fixing mechanism includes a cylinder, a first fixing cylinder, and a second fixing cylinder. The first fixing cylinder is connected to a first rotating assembly via a gear transmission assembly. The second fixing cylinder is disposed inside the first fixing cylinder. The cylinder is disposed at the end of the first fixing cylinder away from the three-jaw chuck, and the working end of the cylinder is connected to the second fixing cylinder. A clamping assembly is disposed inside the second fixing cylinder, and an isolation assembly is disposed at the end of the second fixing cylinder near the three-jaw chuck. Before welding, the present invention fixes the pipe fitting by the clamping assembly and the flange by the three-jaw chuck. Then, the operator drives the second fixing cylinder to move towards the three-jaw chuck using the cylinder until the flange and the pipe fitting come into contact and merge. Finally, the operator can manually move the isolation assembly until the isolation assembly comes into contact with the flange surface. When the welding torch welds the flange and the pipe fitting, the isolation assembly suppresses the emission of fumes and dust.

[0013] Furthermore, the clamping assembly includes a telescopic groove, grippers, a liquid reservoir, a piston, and a first electromagnet. Two sets of telescopic grooves are provided, positioned opposite each other on the upper and lower sides of the end of the second fixed cylinder furthest from the cylinder. Two sets of grippers are provided, each set connected to one set of telescopic grooves. An adjusting spring is wound around the end of each set of grippers located within the telescopic groove. The liquid reservoir is located inside the second fixed cylinder near the cylinder and contains hydraulic oil. The liquid reservoir communicates with the two sets of telescopic grooves. The first electromagnet is located inside the liquid reservoir near the cylinder. The piston is located at the end furthest from the first electromagnet. On the side away from the cylinder, the piston is movably mounted in the liquid storage tank via a return spring. The end of the piston near the first electromagnet is magnetic. When clamping and fixing pipe fittings, the pipe fitting can be placed between two sets of clamping jaws first, and then the first electromagnet is activated. The first electromagnet drives the piston to move, so that the hydraulic oil in the liquid storage tank enters the two sets of telescopic grooves. Under the action of hydraulic pressure, the two sets of clamping jaws clamp and fix the pipe fitting. Through the above technical solution, the present invention can fix pipe fittings of different diameters on the one hand, and on the other hand, in the event of a power outage or other phenomenon, the clamping assembly can automatically release the pipe fitting so that the operator can remove the pipe fitting.

[0014] Furthermore, the isolation assembly includes a telescopic cylinder and an isolation cover. The telescopic cylinder includes an inner cylinder and an outer cylinder, with the inner cylinder nested inside the outer cylinder. The inner cylinder has an axial sliding function but no circumferential rotation function. The isolation cover is slidably installed on one end of the inner cylinder near the three-jaw chuck. The upper end of the isolation cover has an opening. Before welding, the inner cylinder can be manually pulled out of the outer cylinder to bring the isolation cover into contact with the flange surface. During welding, the tilted welding torch working end is inserted into the opening on the isolation cover by the horizontal moving mechanism and the lifting mechanism. Then, the external dust collection system is moved to the vicinity of the opening on the isolation cover. When the first and second rotating components drive the fixing mechanism and the three-jaw chuck to rotate, the isolation cover will be simultaneously stationary due to the welding torch being in a fixed state. At this time, the external dust collection system will suck away the fumes generated during the welding process. The isolation cover suppresses the fumes from spreading, allowing the external dust collection system to remove the fumes with relatively low power.

[0015] Furthermore, a rubber gasket is provided at the end of the isolation cover near the three-jaw chuck. When the first and second rotating components 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 the end of the isolation cover near the three-jaw chuck, wear between the flange and the isolation cover can be effectively avoided. In addition, the isolation cover is made of transparent material to facilitate the observation of the welding process by the staff.

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

[0017] 1. Compared with current welding devices, this invention is equipped with an angle adjustment mechanism to achieve precise multi-angle adjustment of the welding torch. This ensures that the welding torch can be flexibly adjusted to the optimal angle according to the welding requirements of flanges and pipe fittings, guaranteeing that the weld and penetration depth meet the standards. At the same time, the angle adjustment mechanism has angle calibration and automatic reset functions in case of power failure. When the welding torch is adjusted, the deformation of the compression spring will cause the corresponding piezoelectric plate to generate an electrical signal proportional to the rotation angle. By monitoring this electrical signal, the operator can calibrate the welding torch adjustment angle in real time, promptly detect and correct angle deviations, and ensure the accuracy of the welding process. The automatic reset function in case of power failure provides an important guarantee for welding quality. In the event of an unexpected power failure, the second electromagnet automatically shuts off, and the compression spring drives the turntable and welding torch to reset to a non-working state perpendicular to the ground. This effectively avoids the welding wire inside the welding torch from tilting 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 subsequent welding.

[0018] 2. This invention achieves the dual goals of efficient fume collection and reduced energy consumption through the coordinated design of the isolation component and the dust collection system. The isolation cover is made of transparent material and features a retractable inner and outer cylinder structure, which facilitates observation of the welding process and adapts to the sealing requirements of different flange sizes. In practical applications, the rubber gasket on the isolation cover is attached to the flange surface to form a semi-enclosed space. When the welding torch is inserted through the opening, the fume is confined inside the cover, and the suction port of the external dust collection system only needs to be aligned with the opening to capture the fume particles. This design reduces the power consumption of the dust collection system and effectively reduces the amount of fume emitted, protecting the health of the operators.

[0019] 3. The present invention also includes a clamping assembly, which controls the flow of hydraulic oil between the reservoir and the telescopic groove by driving the piston with a first electromagnet, so as to achieve stable clamping of pipes of different diameters by the grippers. Moreover, in the event of a power outage or other emergency, the clamping assembly can automatically release the pipe, making it easy for the operator to quickly remove the workpiece, thus improving the convenience and safety of operation. In addition, the slide rail and slide seat structure on the base allows the movable seat to be flexibly adjusted according to the length of the pipe, so that the operator can easily and accurately align and weld pipes of different lengths with flanges, significantly expanding the applicability of the device. Attached Figure Description

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

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

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

[0023] Figure 4 This is a schematic diagram showing the position of the first magnetic block in this invention;

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

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

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

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

[0028] In the diagram: 1. Base; 2. Movable seat; 21. Fixing mechanism; 211. Cylinder; 212. First fixing cylinder; 213. Second fixing cylinder; 2131. Telescopic groove; 2132. Gripper; 2133. Liquid storage tank; 2134. Piston; 2135. First electromagnet; 214. Telescopic cylinder; 2141. Isolation cover; 3. Fixing seat; 31. Three-jaw chuck; 4. Welding torch; 5. Lifting mechanism; 6. Angle adjustment mechanism; 61. Adjustment seat; 62. First mounting base; 63. First adjusting gear; 64. Annular limit 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 base; 671. Slide groove; 672. Second slider; 673. Second magnetic block; 68. Third adjusting gear; 69. Angle adjusting motor; 7. Horizontal movement mechanism. Detailed Implementation

[0029] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Figures 1-8As shown, this invention provides a technical solution: a welding device for flange production with multi-angle adjustment function. The welding device includes a base 1, with a movable seat 2 and a fixed seat 3 arranged opposite each other at the upper two ends of the base 1. A horizontal moving mechanism 7 is provided on the side of the base 1. A fixed mechanism 21 and a first rotating component are provided inside the movable seat 2, driving the fixed mechanism 21 to rotate through the first rotating component. A three-jaw chuck 31 is provided at the end of the fixed seat 3 near the movable seat 2, and a second rotating component is provided inside the fixed seat 3, driving the three-jaw chuck 31 to rotate through the second rotating component. A lifting mechanism 5 and a welding torch 4 are provided on the horizontal moving mechanism 7. Compared with current welding devices, this invention provides 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 fixed mechanism 21. When the flange and the pipe fitting come into contact, the angle adjustment mechanism 6 is adjusted. The angle adjustment mechanism 6 adjusts the angle of the welding torch 4 to ensure that the penetration depth and weld meet the requirements. The horizontal moving mechanism 7 and the lifting mechanism 5 control the welding torch 4 to approach the part to be welded. The first rotating component and the second rotating component drive the fixing mechanism 21 and the three-jaw chuck 31 to rotate at the same speed (the functions of the first rotating component and the second rotating component are conventional technical means in this field, and the specific structure is not described). During the rotation, the welding torch 4 welds the flange and pipe fittings. Finally, the angle adjustment mechanism 6 in this invention has angle calibration and power failure reset functions. On the one hand, it ensures the accuracy of the angle adjustment of the welding torch 4. On the other hand, it ensures that the welding torch 4 can automatically reset to a vertical position in time when a power failure occurs, so as to avoid the welding wire inside the welding torch 4 tilting due to gravity, which would affect the quality of subsequent welding of the flange.

[0031] like Figure 1 As shown, a slide rail is provided on the base 1, and a slide seat is provided on the slide rail. The movable seat 2 is detachably installed on the slide seat. A locking device is provided on the side of the slide seat (the function of the locking device is a conventional technical means in this field, and the specific structure is not described). The slide rail and slide seat allow the staff to adjust the position of the movable seat 2 as needed, so as to facilitate the welding of pipes of different lengths to the flange. The locking device prevents the movable seat 2 from shaking during the flange welding process.

[0032] like Figures 2-5As shown, the angle adjustment mechanism 6 includes an adjustment base 61 and a turntable 66. A first mounting base 62 is located at the end of the adjustment base 61 furthest from the welding torch 4, and a second mounting base 67 is located at the end of the adjustment base 61 closest to the welding torch 4. An angle adjustment motor 69 is located inside the first mounting base 62, and a first adjusting gear 63 is located at the end of the angle adjustment motor 69 closest to the welding torch 4. An annular limiting frame 64 is located between the first mounting base 62 and the second mounting base 67, and a third adjusting gear 68 is located inside the annular limiting frame 64. The first adjusting gear 63 and the third adjusting gear 68 are connected by several second adjusting gears 65. One end of the turntable 66 is connected to the third adjusting gear 66 via a linkage assembly. The adjusting gear 68 is connected to the turntable 66, and the other end of the turntable 66 is located on the outside of the adjusting seat 61 and connected to the welding torch 4. Before welding, the operator can turn on the angle adjusting motor 69 and the linkage assembly. Under the action of the first adjusting gear 63 and several second adjusting gears 65, the angle adjusting motor 69 can drive the third adjusting gear 68 to rotate within the annular limit frame 64. Under the action of the linkage assembly, the turntable 66 and the third adjusting gear 68 are fixed together. Therefore, through the above technical solution, the present invention can make the third adjusting gear 68 and the turntable 66 rotate synchronously through the angle adjusting motor 69 to achieve the purpose of adjusting the angle of the welding torch 4, ensuring that the weld and penetration depth meet the standards.

[0033] like Figures 2-5 As shown, the linkage assembly includes two linkage frames 661, which are arranged opposite each other on the upper and lower sides of the turntable 66 near the end of the third adjusting gear 68. Each linkage frame 661 is equipped with a set of second electromagnets 6611. When the second electromagnets 6611 are turned on, the third adjusting gear 68 is magnetically attracted by the second electromagnets 6611.

[0034] like Figures 2-5 As shown, a sensor frame 662 is provided at one end of the turntable 66 near the third adjusting gear 68. A slide groove 671 is provided at one end of the second mounting base 67 near the first mounting base 62. A first slider 6621 is provided at one end of the sensor frame 662 near the slide groove 671. Two sets of second sliders 672 are provided inside the slide groove 671. Each set of second sliders 672 is movably mounted in the slide groove 671 by a set of compression springs. The first slider 6621 is located between the two sets of second sliders 672.

[0035] When not in operation, the welding torch 4 is perpendicular to the ground, the first slider 6621 is located between the two sets of second sliders 672, and the two sets of compression springs are in their natural state. When the angle of the welding torch 4 needs to be adjusted, the second electromagnet 6611 is in the activated state, and 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 set of compression springs in the groove 671 is in the compressed state. If the invention is in the preparation stage or the welding end stage... In the event of an unexpected power outage, the second electromagnet 6611 will automatically shut off. At this time, the turntable 66 will no longer be fixed to the third adjusting gear 68, and the compression spring in the slide groove 671, which is in a compressed state, will bring the turntable 66 and the welding torch 4 back to the non-working state, that is, the welding torch 4 will be perpendicular to the ground again. Through the above technical solution, the present invention can effectively avoid the phenomenon that the welding wire at the outlet end of the welding torch 4 tilts under the action of gravity due to the lack of support, thereby preventing the welding wire from not being in the center position of the welding torch 4 when subsequent welding operations are carried out, which would affect the subsequent welding quality.

[0036] like Figures 3-5 As shown, each set of second sliders 672 has a set of piezoelectric plates near the end of the compression spring. During normal adjustment of the welding torch 4 angle, one set of compression springs deforms. At this time, the piezoelectric plates cooperating with the deformed compression springs generate an electrical signal due to the force applied. The magnitude of this electrical signal is proportional to the rotation angle of the welding torch 4 (the specific relationship can be determined through multiple experiments). Through the above technical solution, by monitoring the changes in the electrical signal, the operator can indirectly calibrate the adjustment angle of the welding torch 4, and thus promptly adjust or repair the angle adjustment motor 69. A first magnetic block 6622 is provided at the end of the induction frame 662 near the second mounting base 67. A second magnetic block 673 is provided at one end of the second mounting base 67 near 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 adjusted, the first magnetic block 6622 and the second magnetic block 673 are misaligned under the action of the angle adjustment motor 69. When an unexpected power failure occurs, causing the turntable 66 and the welding torch 4 to rotate and reset, the first magnetic block 6622 and the second magnetic block 673 will realign and magnetically attract 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 reciprocating due to inertia, so as to ensure that the turntable 66 and the welding torch 4 rotate into place in one go.

[0037] like Figure 1 , Figures 6-8As shown, 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 via a gear transmission assembly. The second fixing cylinder 213 is disposed inside the first fixing cylinder 212. The cylinder 211 is disposed at the 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 disposed inside the second fixing cylinder 213. An isolation assembly is disposed at the end of the second fixing cylinder 213 near the three-jaw chuck 31. Before welding, the present invention fixes the pipe fitting by clamping the assembly and fixes the flange by the three-jaw chuck 31. Then, the operator drives the second fixing cylinder 213 to move towards the three-jaw chuck 31 by the cylinder 211 until the flange and the pipe fitting come into contact and merge. Finally, the operator can manually move the isolation assembly until the isolation assembly comes into contact with the flange surface. When the welding torch 4 welds the flange and the pipe fitting, the isolation assembly suppresses the emission of fumes.

[0038] like Figures 6-8 As shown, the clamping assembly includes a telescopic groove 2131, grippers 2132, a liquid reservoir 2133, a piston 2134, and a first electromagnet 2135. Two sets of telescopic grooves 2131 are provided, positioned opposite each other inside the second fixed cylinder 213 at the upper and lower sides of the end furthest from the cylinder 211. Two sets of grippers 2132 are provided, each set connected to one set of telescopic grooves 2131. An adjusting spring is wound around the end of each set of grippers 2132 located within the telescopic groove 2131. The liquid reservoir 2133 is located inside the second fixed cylinder 213 at the end near the cylinder 211, and contains hydraulic oil. The liquid reservoir 2133 communicates with the two sets of telescopic grooves 2131. The first electromagnet 2135 is located inside the liquid reservoir 2133 at the end near the cylinder 211. The piston... Piston 2134 is located on the side of the first electromagnet 2135 away from cylinder 211. Piston 2134 is movably installed in liquid storage tank 2133 via a return spring. The end of piston 2134 near the first electromagnet 2135 is magnetic. When clamping and fixing pipe fittings, the pipe fitting can be placed between two sets of clamping jaws 2132, and then the first electromagnet 2135 is turned on. The first electromagnet 2135 drives piston 2134 to move, so that hydraulic oil in liquid storage tank 2133 enters two sets of telescopic grooves 2131. Under the action of hydraulic pressure, the two sets of clamping jaws 2132 clamp and fix the pipe fitting. Through the above technical solution, the present invention can fix pipe fittings of different diameters on the one hand, and on the other hand, in the event of power failure or other phenomena, the clamping component can automatically release the pipe fitting so that the staff can remove the pipe fitting.

[0039] like Figures 6-8As shown, 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, with the inner cylinder nested inside the outer cylinder. The inner cylinder has axial sliding function but no circumferential rotation function. The isolation cover 2141 is slidably installed on one end of the inner cylinder near the three-jaw chuck 31. An opening is provided at the upper end of the isolation cover 2141. Before welding, the inner cylinder can be manually pulled out of the outer cylinder to make the isolation cover 2141 contact the flange surface. During welding, the tilting state is controlled by the horizontal moving mechanism 7 and the lifting mechanism 5. The working end of the welding torch 4 is inserted into the opening on the isolation cover 2141. Then, the external dust collection 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, the isolation cover 2141 will be in a stationary state due to the obstruction of the welding torch 4, since the welding torch 4 is in a fixed state. At this time, the external dust collection system will suck away the fumes generated during the welding process. The isolation cover 2141 will suppress the fumes from spreading, so that the external dust collection system can suck away the fumes with a small amount of power.

[0040] like Figure 8 As shown, a rubber gasket is provided at one end of the isolation cover 2141 near 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 near the three-jaw chuck 31, wear between the flange and the isolation cover 2141 can be effectively avoided. In addition, the isolation cover 2141 is made of transparent material to facilitate the observation of the welding process by the staff.

[0041] The working principle of this invention is as follows: Before welding, 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 flange surface by manual means. The angle of the welding torch 4 is adjusted by the angle adjustment mechanism 6. The working end of the welding torch 4, which is in an inclined state, is inserted into the opening on the isolation cover 2141 by the horizontal moving mechanism 7 and the lifting mechanism 5. Then, the external dust collection 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 pipe fitting are welded by the welding torch 4. At the same time, since the welding torch 4 is in a fixed state... Therefore, under the obstruction of the welding torch 4, the isolation cover 2141 will be in a stationary state. At this time, the external dust collection system will suck away the fumes generated during the welding process. The isolation cover 2141 will suppress the fumes from spreading, so that the external dust collection system can suck away the fumes with a small amount of power. Finally, if there is an unexpected power outage during the preparation stage or the welding end stage, the second electromagnet 6611 will automatically shut off. At this time, the compression spring in the slide 671 will bring the turntable 66 and the welding torch 4 back to the 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 support.

[0042] Finally, it should be noted that the above descriptions are merely 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within 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), with a movable seat (2) and a fixed seat (3) arranged opposite each other at the upper two ends of the base (1). A horizontal moving mechanism (7) is provided on the side of the base (1). A fixed mechanism (21) and a first rotating component are provided inside the movable seat (2). A three-jaw chuck (31) is provided at the end of the fixed seat (3) near the movable seat (2). A second rotating component is provided inside the fixed seat (3). A lifting mechanism (5) and a welding torch (4) are provided on the horizontal moving mechanism (7). 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 by the angle adjustment mechanism (6). The angle adjustment mechanism (6) has angle calibration and power-off reset functions. The angle adjustment mechanism (6) includes an adjustment seat (61) and a turntable (66). The adjustment seat (61) has a first mounting seat (62) and a second mounting seat (67) arranged opposite to each other inside. The first mounting seat (62) has an angle adjustment motor (69) inside. The angle adjustment motor (69) has a first adjustment gear (63) at one end near the welding torch (4). An annular limit frame (64) is arranged between the first mounting seat (62) and the second mounting seat (67). The annular limit frame (64) has a third adjustment gear (68) inside. 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 component. The other end of the turntable (66) is arranged outside the adjustment seat (61) and connected to the welding torch (4). The linkage assembly includes two linkage frames (661), which are arranged opposite each other on the upper and lower sides of the turntable (66) near the end of the third adjusting gear (68). Each linkage frame (661) is equipped with a set of second electromagnets (6611). The turntable (66) is provided with a sensor frame (662) at one end near the third adjusting gear (68). The second mounting base (67) is provided with a slide groove (671) at one end near the first mounting base (62). The sensor frame (662) is provided with a first slider (6621) at one end near the slide groove (671). Two sets of second sliders (672) are provided inside the slide groove (671). Each set of second sliders (672) is movably mounted in the slide groove (671) by a set of compression springs. The first slider (6621) is located between the two sets of second sliders (672). Each set of second sliders (672) is provided with a set of piezoelectric plates at the end near the compression spring. The sensing frame (662) is provided with a first magnetic block (6622) at the end near the second mounting base (67), and the second mounting base (67) is provided with a second magnetic block (673) at the end near the sensing frame (662). The first magnetic block (6622) and the second magnetic block (673) attract each other.

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

3. The welding device for flange production with 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 component through a gear transmission assembly. The second fixing cylinder (213) is located inside the first fixing cylinder (212). The cylinder (211) is located at the 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 provided inside the second fixing cylinder (213). An isolation assembly is provided at the end of the second fixing cylinder (213) near the three-jaw chuck (31).

4. The welding device for flange production with multi-angle adjustment function according to claim 3, characterized in that: The clamping assembly includes grippers (2132), a piston (2134), and a first electromagnet (2135). Two sets of telescopic grooves (2131) are arranged opposite each other at the end of the second fixed cylinder (213) away from the cylinder (211). Two sets of grippers (2132) are provided, each set connected to a set of telescopic grooves (2131). An adjusting spring is wound around the end of each set of grippers (2132) located within the telescopic groove (2131). The second fixed cylinder ( 213) A liquid storage tank (2133) is provided at one end of the interior near the cylinder (211). The liquid storage tank (2133) is connected to two sets of telescopic grooves (2131). The first electromagnet (2135) is located inside the liquid storage tank (2133) at one end near the cylinder (211). The piston (2134) is located 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) by a return spring.

5. A welding device for flange production with multi-angle adjustment function according to claim 3, 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 on one end of the inner cylinder near the three-jaw chuck (31). The upper end of the isolation cover (2141) is provided with an opening.

6. A welding device for flange production with multi-angle adjustment function according to claim 5, characterized in that: The isolation cover (2141) is provided with a rubber gasket at one end near the three-jaw chuck (31), and the isolation cover (2141) is made of transparent material.

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