CN113319410B - Construction method for welding curved fillet weld - Google Patents
Construction method for welding curved fillet weld Download PDFInfo
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- CN113319410B CN113319410B CN202110646951.6A CN202110646951A CN113319410B CN 113319410 B CN113319410 B CN 113319410B CN 202110646951 A CN202110646951 A CN 202110646951A CN 113319410 B CN113319410 B CN 113319410B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
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- B23K9/28—Supporting devices for electrodes
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- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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Abstract
The invention discloses a construction method, and particularly relates to a construction method for welding a curved fillet weld. The construction method has wide application range and is not limited by the size of the curve workpiece in the use process. The construction method comprises the steps that a guide support stabilizer is used as a welding tool for supporting a welding gun head, then the corresponding part of a welded workpiece is used as a guide rail, the welding gun head is moved under the matching of the guide rail and an operator through the welding tool to complete the welding of a curve fillet weld, wherein the guide support stabilizer at least comprises a framework, an adsorption type support limiting assembly and a gun head support, and the adsorption type support limiting assembly and the gun head support are arranged on the framework in a mutually adaptive manner; in the process of welding the curve angle weld seam, the welding gun head fixed on the gun head bracket is supported on a welded workpiece in a reciprocating way along a set route under the coordination of the framework through the adsorption type supporting and limiting assembly.
Description
Technical Field
The invention relates to a construction method, in particular to a construction method for welding a curved fillet weld, and belongs to the technical field of manufacturing processes of large steel structural members in constructional engineering.
Background
The assembly of large-scale curve steel structure all needs to be put in the dedicated bed-jig of corresponding engineering and goes on, when carrying out the fillet weld welding, all do not provide the walking operation platform that automatic or semi-automatic machine is available among the prior art to curved structure, even set up walking operation platform, its technical degree of difficulty is also higher, only has this welding seam available again, and the ageing and the economic nature of input are very low, consequently all adopt artifical manual welding usually.
The prior patent technology with publication number CN109014672B discloses a right-angle welding seam track bidirectional tracking device and a tracking method thereof, and the defects are that:
1. the device has no self-supporting property, must be fixed, and is welded by moving a welded part, so that the device is obviously not suitable for large steel structures;
2. can only be used for right angle welds;
3. both sides of the welding seam need to be welded with larger size so as to meet the requirement of profile tracking, and the condition that one side is a narrow edge cannot be implemented. Most of steel structures are internally provided with various stiffening ribs, so that main welding seams are inconvenient to weld and need to be welded on the outer sides;
4. the tracking of the profiling must be controlled within the limited range of the spring, the welding position needs to be well controlled not to exceed the action range, and the large linear change of the welding seam of the large-scale curve steel structure is not suitable.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the construction method for the curve fillet welding is wide in application range and not limited by the size of the curve workpiece in the using process.
The technical scheme adopted for solving the technical problems is as follows: a construction method for welding a curved fillet weld is characterized in that a guide support stabilizer is used as a welding tool for supporting a welding gun head, then the corresponding part of a workpiece to be welded is used as a guide rail, the welding tool moves the welding gun head under the cooperation of the guide rail and an operator to complete the welding of the curved fillet weld,
the guide support stabilizer at least comprises a framework, an adsorption type support limiting assembly and a gun head support, wherein the adsorption type support limiting assembly and the gun head support are arranged on the framework in a mutually adaptive manner; in the process of welding the curve fillet weld, the welding gun head fixed on the gun head bracket is supported on a welded workpiece by the adsorption type supporting and limiting assembly in a reciprocating way along a set route under the coordination of the framework.
Furthermore, the adsorption type supporting and limiting assembly comprises a magnetic ring group and a limiting group, and the magnetic ring group and the limiting group are arranged on the framework in a mutually adaptive manner; in the process of moving the welding gun head, the guide support stabilizer can be sucked and supported on a workpiece to be welded in a reciprocating manner along a set route under the cooperation of the limiting piece group through the magnetic ring group.
The preferable mode of the scheme is that the magnetic ring group comprises a driving ball bearing and a ring-shaped strong magnet, the ring-shaped strong magnet is sleeved on the driving ball bearing, the driving ball bearing is fixedly arranged on the framework,
the limiting component group comprises at least two limiting bearing groups, each limiting bearing group comprises an installation shaft and a set of limiting rolling bearings, and the two sets of limiting rolling bearings are arranged on the framework in a manner of being matched with the magnetic ring group through the two installation shafts respectively.
Further, the skeleton be rectangular frame shape, all be provided with initiative ball bearing installation section on two long edges of an tip inboard of rectangular frame shape skeleton, magnetic ring group be two sets of, constitute the spacing bearing group of spacing group is four sets, equally divide and do not have arranged a set ofly on each initiative ball bearing installation section magnetic ring group, equally divide on the long limit of each group magnetic ring group both sides and do not have arranged one set of spacing bearing group, two sets of spacing bearing groups that are located rectangular frame shape skeleton tip can follow long limit length direction reciprocating motion.
The gun head support comprises a mounting connection assembly, a supporting and fixing assembly and a duplex-door-shaped gun head frame, wherein the duplex-door-shaped gun head frame is arranged on the framework above the adsorption type supporting and limiting assembly in an adjustable manner along the positions of two long edges of the rectangular-frame-shaped framework under the matching of the mounting connection assembly through two vertical edges of the duplex-door-shaped gun head frame; the welding gun head is fixedly arranged on the compound gate-shaped gun head frame through the supporting and fixing assembly.
Furthermore, the installation and connection assembly comprises two groups of composite sleeves, the two groups of composite sleeves are respectively arranged on the corresponding long sides of the rectangular frame-shaped framework in a manner of adjustable connection along the length direction of the long side through a sleeve of the composite sleeve, two vertical sides of the composite door-shaped gun head frame are respectively correspondingly sleeved in the other sleeve of the two groups of composite sleeves, and the vertical side sleeved on the other sleeve can reciprocate along the length direction.
In a preferred mode of the scheme, the support fixing assembly comprises two sets of gun head fixing support sleeves, one set of gun head fixing support sleeve is respectively arranged at the corner-shaped extending ends of two vertical edges of the compound door-shaped gun head frame, and the welding gun head fixedly arranged in the gun head fixing support sleeve can be adjusted along the circumferential direction.
Further, the guide support stabilizer further comprises an auxiliary guide stabilizing mechanism, the auxiliary guide stabilizing mechanism is movably arranged at the other end part of the rectangular frame-shaped framework, and one end, which is not provided with the gun head support, of the rectangular frame-shaped framework in the moving process is kept stable through the auxiliary guide stabilizing mechanism.
In a preferred mode of the above scheme, the auxiliary guide stabilizing mechanism comprises two groups of adjustable support guide wheel sets, each group of adjustable support guide wheel set comprises a magnetic ring traveling wheel, an installation frame and a rotary movable joint, the magnetic ring traveling wheels are arranged on the installation frame, the installation frame is adjustably arranged on the rotary movable joint, and the rotary movable joints are adjustably arranged on two long edges of one end of the rectangular frame-shaped framework, which is not provided with the gun head support.
Furthermore, the welding of the curve fillet weld by using the corresponding part of the welded workpiece as a guide rail and using the guide support stabilizer as a welding tool for supporting the welding gun head is carried out according to the following steps,
1) Before welding, preparing a bottom plate and a web plate of a welding object according to requirements, assembling the bottom plate and the web plate into a to-be-welded part meeting the requirements, and arranging an arc striking plate and an arc extinguishing plate at two ends of a welding seam so as to complete the welding seam in a complete welding manner;
2) Adjusting parameters of a welding machine, adjusting the welding parameters according to production welding efficiency and quality requirements, and coating anti-spattering agents in the range of 150mm on two sides of a welding line to be welded;
3) Arranging the guide support stabilizer at the edge of the bottom plate, and respectively attaching two sets of limiting rolling bearings of a limiting group to the upper surface and the lower surface of the bottom plate, so that the annular strong magnet of the magnetic ring group is attached to the end surface of the bottom plate in a magnetic manner and locked; adjusting an adjustable supporting guide wheel set of the auxiliary guide stabilizing mechanism to enable a magnetic ring travelling wheel of the adjustable supporting guide wheel set to be attached to the surface of the web plate and locked to complete installation of the guide supporting stabilizer;
4) Arranging the welding gun head in a gun head fixing support sleeve for locking, adjusting the welding gun head to a proper angle for locking by rotating the gun head fixing support sleeve, and repeating the step to enable the gun head to be in an optimal welding position;
5) Pressing a welding handle switch, and pushing the guide support stabilizer to start welding by an operator in the front of the welding direction;
6) After the first welding seam is welded, the spatter indicated by the base plate and the web plate is cleaned, the spatter-proof agent is coated again, and then the next welding seam is welded;
7) And repeating the steps 5) to 6) until the height of the welding seam meets the design and specification requirements.
The invention has the beneficial effects that: according to the construction method, a set of guide support stabilizer at least comprising a framework, an adsorption type support limiting assembly and a gun head support is designed and manufactured firstly, and the adsorption type support limiting assembly and the gun head support are arranged on the framework in a mutually adaptive mode; in the process of welding the curve fillet weld, the welding gun head fixed on the gun head bracket is supported on a welded workpiece in a reciprocating way along a set route under the coordination of the framework through the adsorption type supporting and limiting assembly. When a specific curve weld joint is welded, the guide support stabilizer is used as a welding tool for supporting the welding gun head, then the corresponding part of a workpiece to be welded is used as a guide rail, and the welding gun head is moved under the matching of the guide rail and an operator through the welding tool to complete the welding of the curve fillet weld joint. Not only reduces the labor intensity of manual welding, especially reduces the fatigue of hands and eyes, but also improves the stability of welding quality.
Drawings
FIG. 1 is a schematic three-dimensional structure of a guide support stabilizer according to the construction method for fillet welding of a curved line of the present invention;
fig. 2-4 are diagrams illustrating the state of fillet welding of different angle curves by using the guide support stabilizer of the invention.
Labeled as: the device comprises a guide support stabilizer 1, a welding gun head 2, a welded workpiece 3, a guide rail 4, a framework 5, an adsorption type support limiting assembly 6, a gun head support 7, a magnetic ring assembly 8, a limiting assembly 9, a driving ball bearing 10, a circular strong magnet 11, a mounting shaft 12, a limiting rolling bearing 13, a long edge 14, a mounting connection assembly 15, a support fixing assembly 16, a double-door-shaped gun head frame 17, a vertical edge 18, a gun head fixing support sleeve 19, a bent extension end 20, an auxiliary guide stabilizing mechanism 21, an adjustable support guide wheel set 22, a magnetic ring travelling wheel 23, a mounting frame 24 and a rotary movable joint 25.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the construction method for the curved fillet welding has a wide application range and is not limited by the size of the curved workpiece in the using process. The construction method comprises the steps that a guide support stabilizer 1 is used as a welding tool for supporting a welding gun head 2, then the corresponding part of a workpiece 3 to be welded is used as a guide rail 4, the welding tool is matched with an operator to move the welding gun head 2 under the action of the guide rail 4 to weld the curve fillet weld, wherein the guide support stabilizer 1 at least comprises a framework 5, an adsorption type support limiting assembly 6 and a gun head support 7, and the adsorption type support limiting assembly 6 and the gun head support 7 are arranged on the framework 5 in a mutually adaptive mode; in the process of welding the curve fillet weld, the welding gun head fixed on the gun head bracket 7 is supported on the welded workpiece 3 in a reciprocating way along a set route under the coordination of the framework 5 through the adsorption type supporting and limiting assembly 6. According to the construction method, a set of guide support stabilizer at least comprising a framework, an adsorption type support limiting assembly and a gun head support is designed and manufactured firstly, and the adsorption type support limiting assembly and the gun head support are arranged on the framework in a mutually adaptive mode; in the process of welding the curve fillet weld, the welding gun head fixed on the gun head bracket is supported on a welded workpiece in a reciprocating way along a set route under the coordination of the framework through the adsorption type supporting and limiting assembly. When a specific curve weld joint is welded, the guide support stabilizer is used as a welding tool for supporting the welding gun head, then the corresponding part of a workpiece to be welded is used as a guide rail, and the welding gun head is moved under the matching of the guide rail and an operator through the welding tool to complete the welding of the curve fillet weld joint. Not only reduces the labor intensity of manual welding, especially reduces the fatigue of hands and eyes, but also improves the stability of welding quality.
In the above embodiment, since the construction method of the present application needs to rely on the guiding support stabilizer 1, in order to facilitate the welding construction operation of the curved fillet weld and simultaneously facilitate the arrangement of the curved fillet weld on the corresponding position of the welded workpiece 3, and the corresponding component is used as the guide rail 4, the absorption type support limiting assembly 6 of the present application comprises a magnetic ring group 8 and a limiting group 9, and the magnetic ring group 8 and the limiting group 9 are arranged on the framework 5 in a mutually adaptive position; in the process of moving the welding gun head 2, the guide support stabilizer 1 is supported on the workpiece 3 to be welded in a reciprocating manner along a set route under the matching of the magnetic ring group 8 and the limit group 9. At this time, the magnetic ring group 8 comprises a driving ball bearing 10 and a ring-shaped strong magnet 11, the ring-shaped strong magnet 11 is sleeved on the driving ball bearing 10, the driving ball bearing 10 is fixedly mounted on the framework 5, the limit group 9 comprises at least two limit bearing groups, each limit bearing group comprises a mounting shaft 12 and a limit rolling bearing 13, and the two limit rolling bearings 13 are respectively arranged on the framework 5 in a position corresponding to the position of the magnetic ring group 8 through the two mounting shafts 12. Correspondingly, in order to reduce the weight of the framework and facilitate the arrangement of the adsorption type supporting and limiting assembly 6 and the gun head support 7, the framework 5 is in a rectangular frame shape, two long edges 14 on the inner side of one end part of the rectangular frame-shaped framework are respectively provided with a driving ball bearing installation section, the magnetic ring groups 8 are divided into two groups, the limiting bearing groups forming the limiting group 9 are four groups, each driving ball bearing installation section is provided with one magnetic ring group 8, the long edges 14 on two sides of each magnetic ring group 8 are respectively provided with one limiting bearing group 9, and the two limiting bearing groups 9 at the end parts of the rectangular frame-shaped framework can reciprocate along the length direction of the long edges 14.
Further, in order to facilitate installation of the welding gun head 2 and adjustment in the welding process, the gun head support 7 comprises an installation connection assembly 15, a support fixing assembly 16 and a set of double-door-shaped gun head frame 17, wherein the double-door-shaped gun head frame 17 is adjustably arranged on the framework 5 above the adsorption type support limiting assembly 6 along the positions of two long sides 14 of the rectangular frame-shaped framework under the matching of the installation connection assembly 15 through two vertical sides 18 of the double-door-shaped gun head frame 17; the welding gun head 2 is fixedly arranged on the compound gate-shaped gun head frame 17 through the supporting and fixing assembly 16. At this time, the mounting and connecting assembly 15 includes two sets of composite casings, the two sets of composite casings are respectively adjustably arranged on the corresponding long sides 14 of the rectangular frame-shaped framework through one sleeve of the composite casings along the length direction of the long sides 14, two vertical sides 18 of the compound gantry-shaped headstock 17 are respectively correspondingly sleeved in the other sleeve of the two sets of composite casings, and the vertical sides 18 sleeved on the other sleeve can reciprocate along the length direction. The support fixing assembly 16 comprises two sets of gun head fixing support sleeves 19, a set of the gun head fixing support sleeve 19 is respectively arranged on the elbow-shaped extension end 20 of two vertical edges 18 of the compound gate-shaped gun head frame 17, and the welding gun head 2 fixedly arranged in the gun head fixing support sleeve 19 can be adjusted along the circumferential direction. According to the structural characteristic that the framework 5 is in a rectangular frame shape, in order to ensure that the welding gun head is kept stable in the welding process to the maximum extent, the guide support stabilizer 1 further comprises an auxiliary guide stabilizing mechanism 21, the auxiliary guide stabilizing mechanism 21 is movably arranged at the other end part of the rectangular frame-shaped framework, and the end, which is not provided with the gun head support 7, of the rectangular frame-shaped framework in the moving process is kept stable through the auxiliary guide stabilizing mechanism 21. At this time, the auxiliary guiding and stabilizing mechanism 21 includes two groups of adjustable supporting and guiding wheel sets 22, each group of adjustable supporting and guiding wheel sets 22 respectively includes a magnetic ring traveling wheel 23, an installation frame 24 and a rotary movable joint 25, the magnetic ring traveling wheel 23 is arranged on the installation frame 24, the installation frame 24 is adjustably arranged on the rotary movable joint 25, and the rotary movable joint 25 is adjustably arranged on two long sides 14 of the rectangular frame-shaped framework at the end where the gun head support 7 is not arranged.
In view of the specific structure of the guide support stabilizer 1, the process can be carried out according to the following steps when the corresponding part of the workpiece to be welded is used as a guide rail and the guide support stabilizer is used as a welding tool for supporting the welding gun head to weld a curve fillet weld,
1) Before welding, preparing a bottom plate and a web plate of a welding object according to requirements, assembling the bottom plate and the web plate into a to-be-welded part meeting the requirements, and arranging an arc striking plate and an arc extinguishing plate at two ends of a welding seam so as to complete the welding seam in a complete welding manner;
2) Adjusting parameters of a welding machine, adjusting the welding parameters according to production welding efficiency and quality requirements, and coating anti-spattering agents in a range of 150mm on two sides of a welding line to be welded;
3) Arranging the guide support stabilizer at the edge of the bottom plate, and respectively attaching two sets of limiting rolling bearings of a limiting group to the upper surface and the lower surface of the bottom plate, so that the annular strong magnet of the magnetic ring group is attached to the end surface of the bottom plate in a magnetic manner and locked; adjusting an adjustable support guide wheel set of the auxiliary guide stabilizing mechanism to enable a magnetic ring travelling wheel of the adjustable support guide wheel set to be attached to the surface of the web plate and locked to complete installation of the guide support stabilizer;
4) Arranging the welding gun head in a gun head fixing support sleeve for locking, adjusting the welding gun head to a proper angle for locking by rotating the gun head fixing support sleeve, and repeating the step to enable the gun head to be in an optimal welding position;
5) Pressing a welding handle switch, and pushing the guide support stabilizer to start welding by an operator in front of the welding direction;
6) After the first welding seam is welded, treating the splashes indicated by the base plate and the web plate, painting the anti-spattering agent again, and then welding the next welding seam;
7) And repeating the steps 5) to 6) until the height of the welding seam meets the design and specification requirements.
To sum up, the technical structure of this application is exquisite, easy and simple to handle, and adaptability is good, and the requirement for assembly accuracy of butt welding spare is low, the fillet weld welding of adaptable curvilinear figure, non-90 degrees contained angle steel construction.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Except the special noted materials, the device selects stainless steel without magnetic permeability, such as austenitic stainless steel, aluminum alloy or other materials with certain strength, heat resistance and no magnetic permeability, and particularly, a bearing externally sleeved with a magnetic ring must have the property of not being magnetized so as to avoid influencing the performance of the bearing.
Except the specially noted section, the device is a rectangular or square solid section with the same section specification.
The device has a bilateral symmetry structure.
The main support, namely the rectangular frame-shaped framework, is a rectangular frame, the upper end of the rectangular frame-shaped framework is provided with a hole which is penetrated in a matching way and does not have threads, two sides of the lower part of the rectangular frame-shaped framework are respectively provided with a fixed shaft, one end connected with the main support is provided with a rectangular section, and the other end of the rectangular frame-shaped framework is provided with a circular section. The main bracket below the shaft has a section with a circular cross section.
The small bearings are arranged on the circular cross sections of the main bracket and the fixed shaft.
The bearing of the main bracket is sleeved with a ring-shaped strong magnet, and the magnetic ring is coated and protected by a metal material (such as martensite and dual-phase stainless steel) with good magnetic conductivity and antirust capability.
The wheel carrier which can move up and down is arranged below the wheel carrier and comprises a small section of rectangular pipe sleeved on the main support, the center of the outer side of the wheel carrier is provided with a hole with threads, a fastening knob and a shaft fixed on the rectangular pipe are arranged, and the other end of the shaft is provided with a circular cross section and is provided with a bearing.
Rotatable activity festival is installed to main support upper end hole department, by 2 small-section rectangular pipes and the perpendicular fixed connection of 1 rectangle solid material, 2 small-section rectangular pipe outside centers all have threaded hole, and the rectangle solid material center has the hole of not taking the screw thread, runs through with the hole of main support, and through locking knob and nut fastening, the rectangle solid material is the frosting with the main support contact surface, has certain coefficient of friction, can be difficult for the slip rotation after the locking.
The adjustable wheel carrier is a bent rectangular frame, three sides are rectangular sections, one side is a circular section, a small bearing is installed on the circular section, and the adjustable wheel carrier can be adjusted along a small section of rectangular pipe and locked through a knob.
The small bearing is externally sleeved with a ring-shaped strong magnet, and the magnetic ring is coated and protected by a metal material (such as martensite and duplex stainless steel) with good magnetic conductivity and antirust capacity.
The bidirectional movable joint is composed of two small-section rectangular pipes which are mutually vertically fixed, one section of the bidirectional movable joint is sleeved on the main support, and the outer sides of the two small-section rectangular pipes are provided with threaded holes.
The adjustable frame of rifle head contains: the pi-shaped broken line-shaped frame is the compound door-shaped gun head frame, is vertical to the broken line plane of the broken line-shaped frame, the broken line-shaped frame is fixedly connected with the broken line plane, the section of the broken line plane is slightly larger, the lower end of the broken line plane is provided with a through hole without threads along the walking direction, and a small hole with threads is arranged in the vertical direction.
Rifle head snap ring contains: one end of the round shaft is inserted into the hole of the broken line plane, the direction of the clamping ring can be adjusted through rotation, and the round shaft can be locked through the knob; the other end is fixedly connected with the square snap ring; the other end of the clamping ring is provided with a threaded hole, the knob is arranged in the hole, the end part of the knob is connected with the equilateral L-shaped clamping piece, and the equilateral L-shaped clamping piece and the knob can freely rotate but cannot fall off. The advantage of adopting square snap ring is that, form 4 contact points behind the card owner welder, compare in 2 contact points of circular snap ring, can be more stable, can not produce and sway.
Example one
The device can be used for the curved welding seam of a curved steel structure, can also be used for a linear welding seam, is suitable for the condition that the included angle of the welding seam of a welding object is 90 degrees as shown in figure 2, and is also suitable for the condition that the included angle of the welding seam is more than 90 degrees as shown in figure 3 or more than 90 degrees as shown in figure 4. The specific implementation mode is as follows:
1) The sizes of the bottom plate and the web plate of the welding object are checked to be correct according to design requirements, the surfaces are checked to reach the required derusting grade according to design and standard requirements, the surfaces are cleaned, oxygen cutting slag, burrs and the like are removed, and the assembly size is checked to be correct.
2) Adjusting parameters of a welding machine, and adopting welding current 260-280 amperes suitable for production welding efficiency and quality to influence the welding spatter range to be about 300mm, and coating the spatter-proof agent in the range.
3) The device is placed at the edge of the bottom plate, the small bearing is positioned on the upper surface of the bottom plate, and the magnetic ring is attached to the end face of the bottom plate in a magnetic mode.
4) The section of rectangular pipe which is sleeved on the main bracket is upwards slid, so that the limited bearing is attached to the lower surface of the bottom plate and then locked by the knob.
5) The rectangular solid material is rotated, the adjustable wheel carrier is slid at the same time, the angle and the length are determined, the annular strong magnetic wheel is attached to the surface of the web, and the web is locked through the knob.
6) The welding gun head is placed in the clamping ring and locked through the knob, the square clamping ring is rotated to determine a proper angle, and the square clamping ring is locked through the knob.
7) The upper position, the lower position, the front position and the rear position of the two fold line-shaped frames are adjusted through the two small pitch pipes, so that the welding gun head is in the optimal position suitable for welding and is locked through a knob.
8) If necessary, steps 6 and 7 are repeated to make the gun head in the optimal welding position.
9) The welding handle switch is pressed down, the device is arranged in front of the welding direction, and the device is pushed to start welding. The device guides in the front, can avoid the welding to splash to bottom plate, web change back, causes the influence to bearing binding face, and then influences welding quality.
10 The arc striking plates at both ends of the welding line should be lengthened according to the size of the device to complete the welding line by complete welding.
11 The spatter on the surface of the base plate and the web plate is cleaned, the spatter-proof agent is coated again, and then the next welding seam is welded.
12 Repeat steps 6 through 10 until the weld height meets the design and specification requirements.
Claims (9)
1. A construction method for welding a curved fillet weld is characterized by comprising the following steps: the construction method comprises the steps of taking a guide support stabilizer (1) as a welding tool for supporting a welding gun head (2), then taking the corresponding part of a workpiece (3) to be welded as a guide rail (4), moving the welding gun head (2) under the matching of the guide rail (4) and an operator through the welding tool to complete the welding of the curve fillet weld,
the guide support stabilizer (1) at least comprises a framework (5), an adsorption type support limiting assembly (6) and a gun head support (7), wherein the adsorption type support limiting assembly (6) and the gun head support (7) are arranged on the framework (5) in a mutually adaptive manner; in the process of welding the curve fillet weld, a welding gun head fixed on a gun head bracket (7) is supported on a workpiece (3) to be welded in a reciprocating way along a set route under the coordination of a framework (5) through the adsorption type supporting and limiting assembly (6),
the adsorption type supporting and limiting assembly (6) comprises a magnetic ring group (8) and a limiting group (9), and the magnetic ring group (8) and the limiting group (9) are arranged on the framework (5) in a mutually adaptive manner; in the process of moving the welding gun head (2), the guide support stabilizer (1) is supported on the welded workpiece (3) in a reciprocating manner along a set route under the matching of the limiting group (9) through the magnetic ring group (8).
2. The construction method for the curved fillet welding according to claim 1, wherein: the magnetic ring group (8) comprises a driving ball bearing (10) and a ring-shaped strong magnet (11), the ring-shaped strong magnet (11) is sleeved on the driving ball bearing (10), the driving ball bearing (10) is fixedly arranged on the framework (5),
the limiting component group (9) comprises at least two limiting bearing groups, each limiting bearing group comprises an installation shaft (12) and a set of limiting rolling bearing (13), and the two sets of limiting rolling bearings (13) are arranged on the framework (5) through the two installation shafts (12) and the magnetic ring component group (8) in a position-adaptive manner.
3. The construction method for curved fillet welding according to claim 1 or 2, characterized in that: skeleton (5) be rectangular frame shape, all be provided with initiative ball bearing installation section on two length of branch limits (14) of an end inboard of rectangular frame shape skeleton, magnetic ring group spare (8) be two sets ofly, constitute the spacing bearing group of spacing group (9) is four sets, equally divide on each initiative ball bearing installation section and do not arranged a set ofly magnetic ring group spare (8), equally divide on the length of branch limits (14) of each magnetic ring group spare (8) both sides and do not arranged one set of spacing bearing group (9), two sets of spacing bearing group (9) that are located rectangular frame shape skeleton tip can follow long limit (14) length direction reciprocating motion.
4. The construction method for curved fillet welding according to claim 3, wherein: the gun head support (7) comprises a mounting and connecting assembly (15), a supporting and fixing assembly (16) and a set of compound gate-shaped gun head frame (17), wherein the compound gate-shaped gun head frame (17) is adjustably arranged on the framework (5) above the adsorption type supporting and limiting assembly (6) along the positions of two long edges (14) of the rectangular frame-shaped framework under the matching of the mounting and connecting assembly (15) through two vertical edges (18) of the compound gate-shaped gun head frame; the welding gun head (2) is fixedly arranged on the compound gate-shaped gun head frame (17) through the supporting and fixing assembly (16).
5. The construction method for curved fillet welding according to claim 4, wherein: the installation and connection assembly (15) comprises two groups of composite sleeves, the two groups of composite sleeves are respectively arranged on the corresponding long edges (14) of the rectangular frame-shaped framework in an adjustable manner along the length direction of the long edges (14) through one sleeve, two vertical edges (18) of the compound door-shaped gun head frame (17) are respectively correspondingly sleeved in the other sleeve of the two groups of composite sleeves, and the vertical edge (18) sleeved on the other sleeve can reciprocate along the length direction.
6. The construction method for curved fillet welding according to claim 5, wherein: the support fixing assembly (16) comprises two sets of gun head fixing support sleeves (19), one set of the gun head fixing support sleeve (19) is respectively arranged on a crank-shaped extension end (20) of two vertical edges (18) of the compound gate-shaped gun head frame (17), and the welding gun head (2) fixedly arranged in the gun head fixing support sleeve (19) can be adjusted along the circumferential direction.
7. The construction method for curved fillet welding according to claim 6, wherein: the guide support stabilizer (1) further comprises an auxiliary guide stabilizing mechanism (21), the auxiliary guide stabilizing mechanism (21) is movably arranged at the other end part of the rectangular frame-shaped framework, and one end, which is not provided with the gun head support (7), of the rectangular frame-shaped framework in the moving process is kept stable through the auxiliary guide stabilizing mechanism (21).
8. The construction method for curved fillet welding according to claim 7, wherein: supplementary direction stabilizing mean (21) support direction wheelset (22) with adjustable include two sets of, each group adjustable support direction wheelset (22) equally divide and do not include magnetic ring walking wheel (23), installation square frame (24) and rotatory activity festival (25), magnetic ring walking wheel (23) arrange installation square frame (24) on, installation square frame (24) adjustable arrange rotatory activity festival (25) on, rotatory activity festival (25) adjustable arrange on two long limits (14) that rectangular frame shape skeleton does not set up rifle head support (7) one end.
9. The construction method for curvilinear fillet welding according to claim 8, characterized in that: the welding of curve fillet weld by using the corresponding part of the welded workpiece as a guide rail and using a guide support stabilizer as a welding tool for supporting the welding gun head is carried out according to the following steps,
1) Before welding, preparing a bottom plate and a web plate of a welding object according to requirements, assembling the bottom plate and the web plate into a to-be-welded part meeting the requirements, and arranging an arc striking plate and an arc extinguishing plate at two ends of a welding seam so as to complete the welding seam in a complete welding manner;
2) Adjusting parameters of a welding machine, adjusting the welding parameters according to production welding efficiency and quality requirements, and coating anti-spattering agents in the range of 150mm on two sides of a welding line to be welded;
3) Arranging the guide support stabilizer at the edge of the bottom plate, and respectively attaching two sets of limiting rolling bearings of a limiting group to the upper surface and the lower surface of the bottom plate, so that the annular strong magnet of the magnetic ring group is attached to the end surface of the bottom plate in a magnetic manner and locked; adjusting an adjustable support guide wheel set of the auxiliary guide stabilizing mechanism to enable a magnetic ring travelling wheel of the adjustable support guide wheel set to be attached to the surface of the web plate and locked to complete installation of the guide support stabilizer;
4) Arranging the welding gun head in the gun head fixing and supporting sleeve for locking, adjusting the welding gun head to a proper angle for locking by rotating the gun head fixing and supporting sleeve, and repeating the steps to enable the gun head to be in an optimal welding position;
5) Pressing a welding handle switch, and pushing the guide support stabilizer to start welding by an operator in the front of the welding direction;
6) After the first welding seam is welded, the spatter indicated by the base plate and the web plate is cleaned, the spatter-proof agent is coated again, and then the next welding seam is welded;
7) And repeating the steps 5) to 6) until the height of the welding seam meets the design and specification requirements.
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| US6244189B1 (en) * | 1997-08-04 | 2001-06-12 | Magnatech Limited Partnership | Machine guide and propulsion system for variable geometry surface |
| CN108296677B (en) * | 2018-01-24 | 2019-11-12 | 江苏理工学院 | A kind of flabellum shape welder |
| CN208051246U (en) * | 2018-02-05 | 2018-11-06 | 华鼎(厦门)电力设备有限公司 | Welding tooling for indulging welding line automatically |
| KR20190137984A (en) * | 2018-06-04 | 2019-12-12 | ㈜태양기술 | Automatic robot welding unit |
| CN108907388A (en) * | 2018-06-12 | 2018-11-30 | 江苏赛博宇华科技有限公司 | Welder is used in a kind of production of mobile phone |
| CN108747168A (en) * | 2018-08-09 | 2018-11-06 | 中车成都机车车辆有限公司 | A kind of welding fixture mechanism |
| CN111037175B (en) * | 2019-12-31 | 2020-11-24 | 燕山大学 | Automatic elbow welding auxiliary device |
| CN111906478A (en) * | 2020-07-14 | 2020-11-10 | 中国十九冶集团有限公司 | Construction method for manual welding wire of steel structure |
| CN212761853U (en) * | 2020-07-14 | 2021-03-23 | 中国十九冶集团有限公司 | Auxiliary support tool for manual wire welding of steel structure |
| CN212599982U (en) * | 2020-07-19 | 2021-02-26 | 中交路桥建设有限公司 | 360 rotatory welding set |
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