CN113458692A - Welding method for multi-edge rod - Google Patents
Welding method for multi-edge rod Download PDFInfo
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- CN113458692A CN113458692A CN202110812079.8A CN202110812079A CN113458692A CN 113458692 A CN113458692 A CN 113458692A CN 202110812079 A CN202110812079 A CN 202110812079A CN 113458692 A CN113458692 A CN 113458692A
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- rod
- welding
- polygonal
- polygonal rod
- edge
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention provides a welding method of a polygonal rod, which comprises the following steps: (1) moving a supporting device into the multi-edge rod, supporting a round bar, and enabling the round bar to be in contact with the multi-edge rod at a joint where the multi-edge rod is to be welded currently; (2) the traction welding device moves along the length direction of the multi-edge rod, and round bars are spot-welded to the multi-edge rod at the joint of the multi-edge rod; (3) automatically seaming the seaming position of the multi-edge rod by adopting a rod seaming machine, welding the outer part of the seaming position of the multi-edge rod, welding two end faces and round bars at the seaming position of the multi-edge rod together, and forming a fillet weld; (4) after welding, polishing the fillet weld by using a polishing device, polishing the fillet weld into an arc shape, and enabling the fillet weld to be tangent to the end surfaces of the two sides of the joint of the polygonal rod; (5) polishing the surface of the polygonal rod by using a polishing machine; the welding effect is improved, the welding strength is enhanced, the attractiveness is guaranteed, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of rod body welding, in particular to a method for welding a multi-edge rod.
Background
At present, the multi-edge lamp pole is welded externally, so that the welding seam is fuller, the convex shape is shown, the welding seam strength is influenced after the welding seam on the surface of the lamp pole is polished, and therefore a welding method which can ensure the welding strength and does not damage the attractiveness is needed.
Disclosure of Invention
To the not enough of above-mentioned relevant prior art, this application provides a many arriss pole welding method, but from the inside circle strip that increases butt to the commissure of the body of rod to support the circle strip and prevent to rock, make circle strip central point put and cross section align, with two terminal surface welding of circle strip and body of rod commissure together, can follow the inside enhancement welding seam of welding seam, improve welding effect, thereby guarantee welding strength, have stronger practicality.
In order to achieve the above object, the present invention employs the following techniques:
a welding method of a polygonal rod comprises the following steps:
the method comprises the following steps: moving a supporting device into the multi-edge rod, supporting a round bar to prevent the round bar from shaking, and enabling the round bar to be in contact with the multi-edge rod at a joint where the multi-edge rod is currently to be welded, so that the center position of the round bar is aligned with the cross section of the multi-edge rod;
step two: the traction welding device moves along the length direction of the multi-edge rod, round bars are spot-welded to the multi-edge rod at the joint of the multi-edge rod, and the distance between point positions of the spot welding of the round bars is 50 mm;
step three: automatically seaming the seaming position of the multi-edge rod by adopting a rod seaming machine, welding the outer part of the seaming position of the multi-edge rod, welding two end faces and round bars at the seaming position of the multi-edge rod together, and forming a fillet weld;
step four: after welding, polishing the fillet weld by using a polishing device, polishing the fillet weld into an arc shape, and enabling the fillet weld to be tangent to the end surfaces of the two sides of the joint of the polygonal rod;
step five: and polishing the outer surface of the welding line of the polygonal rod by using a polishing machine.
Furthermore, the thickness specifications of the polygonal rod are three, namely 4mm, 6mm and 8mm, the voltage is 28-30V when the rod combining machine is used for welding, the current is 240-300A, the diameter of the welding wire is 1.2mm, and the welding flux is CHF 101; when the thickness of the material of the polygonal rod is 4mm, the speed of the polygonal rod is 1-1.5 m/min; when the thickness of the material of the polygonal rod is 6mm, the speed of the polygonal rod is 0.6-0.9 m/min; when the thickness of the material of the polygonal rod is 8mm, the speed of the polygonal rod is 0.5-0.8 m/min.
Further, the longitudinal seam repairing length is not more than 20% of the total length of the polygonal rod, and the longitudinal seam repairing depth is not more than 33% of the wall thickness of the polygonal rod; the concave-convex deviation of the surface of the welding line is not more than 2mm within the arbitrary length of 25mm of the welding line of the polygonal rod; within any 500mm length of the welding line, the width deviation of the welding line is not more than 2 mm; the width deviation in the length range of the whole ridge rod is not more than 3 mm; the undercut depth of the surface of the welding line of the polygonal rod is not more than 0.5mm, the undercut continuous length of the welding line is not more than 100mm, and the sum of the total length of the undercuts at the two sides of the welding line is not more than 10% of the length of the welding line.
Further, during polishing, a grinding wheel of the polishing device is parallel to the straight edge face of the polygonal rod, the center of the grinding wheel is located on the welding line, when the sharp corner of the welding line of the polygonal rod is polished, the sharp corner of the welding line of the grinding wheel and the polygonal rod is K-shaped, and the amplitude of the welding device in the direction of the welding line is 200-300 mm.
Further, the rotation speed of the polishing machine is 400r/min, the moving speed of the polishing machine is 1.5-2m/min, and the polishing machine moves at least one back and forth in the length direction of the polygonal rod.
The invention has the beneficial effects that: round bars are added and are welded with the two end faces at the joint of the multi-edge rod, so that the welding effect is improved, and the welding strength is enhanced; after the welding seam is polished, the welding strength is not reduced, so that the attractiveness is ensured, and the safety is improved; the amplitude of the conveyor of the polishing device in the direction of the welding line is set between 200 mm and 300mm, so that the height irregularity and irregularity of the polished welding line are effectively prevented.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 is a perspective view of the overall structure of an embodiment of the present application.
Fig. 2 is a perspective view of the polishing device and the polygonal rod according to the embodiment of the present application.
Fig. 3 is a front view of a grinding device and a polygonal rod according to an embodiment of the present disclosure.
Fig. 4 is a table of welding parameters of the rod combining machine according to the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the described embodiments of the present invention are a part of the embodiments of the present invention, not all of the embodiments of the present invention.
As shown in fig. 1 to 4, the present embodiment provides a welding method for a polygonal rod, including the following steps:
the method comprises the following steps: move strutting arrangement 2 in many arriss pole 1, hold circle strip 3, prevent that it from rocking to make circle strip 3 contact with many arriss pole 1 at the seaming department of many arriss pole 1, and 3 central points of circle strip put and align with 1 cross section of many arriss pole.
Step two: traction welding device 4 moves along 1 length direction of polygon pole, on 1 seaming department of polygon pole spot welding 3 round bars to polygon pole 1, the distance between the point location of 3 spot welding of round bars is 50 mm.
Step three: automatically seaming the seaming position of the multi-edge rod 1 by adopting a rod seaming machine, moving the multi-edge rod 1 along the length direction, welding the outer part of the seaming position of the multi-edge rod 1, welding two end surfaces of the seaming position of the multi-edge rod 1 and the round bar 3 together, and forming an angle weld; the longitudinal seam repairing length is not more than 20% of the total length of the polygonal rod 1, and the longitudinal seam repairing depth is not more than 33% of the wall thickness of the polygonal rod 1; the welding line of the polygonal rod 1 is within any 25mm length, and the concave-convex deviation of the surface of the welding line is not more than 2 mm; within any 500mm length of the welding line, the width deviation of the welding line is not more than 2 mm; the width deviation in the length range of the whole ridge rod is not more than 3 mm; the undercut depth of the surface of the welding seam of the polygonal rod 1 is not more than 0.5mm, the undercut continuous length of the welding seam is not more than 100mm, and the sum of the total length of the undercuts at the two sides of the welding seam is not more than 10% of the length of the welding seam.
Step four: after the welding finishes, use grinding device 5 to polish the fillet weld, polish the fillet weld into the arc to it is tangent with the terminal surface of many arriss pole 1 joint department both sides, grinding wheel 5's grinding wheel is parallel with the straight flange face of many arriss pole 1, and the grinding wheel center is located the welding seam, when polishing the closed angle of many arriss pole 1 welding seam, grinding wheel and many arriss pole 1's welding seam closed angle are K shape, and welding set 4 transports quick-witted range for 200 + 300mm along fillet weld direction.
Step five: and polishing the welding line of the polygonal rod 1 by using a polishing machine, wherein the rotating speed of the polishing machine is 400r/min, the moving speed is 1.5-2m/min, and the polishing machine moves at least one round trip in the length direction of the polygonal rod 1.
Specifically, the thickness specifications of the polygonal rod 1 are three, namely 4mm, 6mm and 8mm, and when the material thickness of the polygonal rod 1 is 4mm, the moving speed of the polygonal rod 1 is 1-1.5 m/min; when the thickness of the material of the polygonal rod 1 is 6mm, the moving speed of the polygonal rod 1 is 0.6-0.9 m/min; when the thickness of the material of the polygonal rod 1 is 8mm, the moving speed of the polygonal rod 1 is 0.5-0.8 m/min; the voltage is 28-30V, the current is 240-300A, the diameter of the welding wire is 1.2mm, the welding flux is CHF101, and the welding speed is 0.5-1.5 m/min.
Specific embodiments are described below:
firstly, moving a multi-edge rod 1 into a rod closing machine and fixing the multi-edge rod, then placing a supporting device 2 into the multi-edge rod 1, enabling the supporting device 2 to support a round bar 3, preventing the round bar 3 from shaking, enabling the round bar 3 to be in contact with the multi-edge rod 1 at a joint of the multi-edge rod 1, aligning the central position of the round bar 3 with the cross section of the multi-edge rod 1, then drawing a welding device 4 to move along the length direction of the multi-edge rod 1, and performing spot welding on the round bar 3 on the end face of the joint of the multi-edge rod 1 once the welding device moves for 50 mm; after spot welding is finished, the supporting device 2 is removed, the rod closing machine is started, the joint of the polygonal rod 1 is extruded, two end faces of the joint of the polygonal rod 1 are attached tightly, then the polygonal rod 1 is driven to move at the speed of 0.5-0.8m/min along the length direction, and the rod closing machine simultaneously welds the polygonal rod 1; after welding, polishing the welding line of the polygonal rod 1, namely firstly, enabling a grinding wheel of a polishing device 5 to be parallel to the straight edge surface of the polygonal rod 1, enabling the center of the grinding wheel to be located on the welding line and polishing the grinding wheel until the grinding wheel is level to the straight edge surface, polishing the other side plane of the welding line in the same way, then polishing the sharp corner of the welding line, enabling the grinding wheel of the polishing device 5 and the sharp corner to form a K shape, and enabling the grinding wheel and the straight edge surface to form 22.5 degrees until the grinding wheel and the straight edge surface are polished smoothly; and finally, polishing the polygonal rod 1, adjusting the angle between a polishing abrasive belt and the welding line to ensure that the abrasive belt surface completely covers the welding line, setting the rotating speed of the polishing machine to be 400r/min, and the moving speed to be 1.5-2m/min, and moving the polygonal rod 1 in the length direction for two times to ensure that the welding line is polished completely, and finally, the formed welding line is smooth and natural.
The travelling mechanism can move, meanwhile, supports the round bar for welding, and avoids the round bar from shaking in the welding process; the cross section of the roller positioned on the end surface is V-shaped, so that the requirement of round bars with different diameters can be met; the spring is arranged on the telescopic rod of the travelling mechanism, so that the travelling mechanism can automatically adapt to multi-edge rod bodies with different diameters and can also adapt to rod bodies with cone-shaped structures, and the practicability is greatly improved; meanwhile, the connecting blocks are connected by adopting the connecting rods, and the connecting rods can move in the connecting blocks, so that the distance between the connecting blocks can be adjusted according to the length of the round bars and the distance between spot welding point positions, and different requirements can be met; and the grinding mechanism with the shape matched with the polygonal rod is used for improving the working efficiency of grinding the welding line.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A welding method of a polygonal rod is characterized by comprising the following steps:
1) moving a supporting device (2) into the multi-edge rod (1), supporting a round bar (3), and enabling the round bar (3) to be in contact with the multi-edge rod (1) at a joint where the multi-edge rod (1) is currently to be welded;
2) the traction welding device (4) moves along the length direction of the multi-edge rod (1), and the round bars (3) are spot-welded to the multi-edge rod (1) at the joint of the multi-edge rod (1);
3) automatically seaming the seaming position of the multi-edge rod (1) by adopting a rod seaming machine, moving the multi-edge rod (1) along the length direction, welding the outer part of the seaming position of the multi-edge rod (1), welding two end surfaces of the seaming position of the multi-edge rod (1) and the round bar (3) together, and forming an angle welding line;
4) after welding, polishing the fillet weld by using a polishing device (5), polishing the fillet weld into an arc shape, and enabling the fillet weld to be tangent to the end surfaces of two sides of the joint of the polygonal rod (1);
5) and polishing the welding seam of the polygonal rod (1) by using a polishing machine.
2. The welding method of the polygonal rod according to claim 1, wherein the thickness specification of the polygonal rod (1) is 4mm, 6mm and 8mm, the welding voltage of the rod combining machine is 28-30V, the current is 240-300A, the diameter of the welding wire is 1.2mm, the flux is CHF101, and the moving speed of the polygonal rod (1) is 0.5-1.5 m/min.
3. The welding method of the polygonal rod according to claim 2, wherein when the thickness of the material of the polygonal rod (1) is 4mm, the moving speed of the polygonal rod (1) is 1-1.5 m/min; when the thickness of the material of the polygonal rod (1) is 6mm, the moving speed of the polygonal rod (1) is 0.6-0.9 m/min; when the thickness of the material of the polygonal rod (1) is 8mm, the moving speed of the polygonal rod (1) is 0.5-0.8 m/min.
4. A polygonal rod welding method according to claim 1, characterized in that the distance between the spot welding points of the circular bars (3) is 50 mm.
5. A welding method of polygonal rods according to claim 1, characterized in that the central position of the circular bar (3) is aligned with the transverse plane of the polygonal rod (1).
6. A polygonal rod welding method according to claim 1, characterized in that the longitudinal seam repair length is not more than 20% of the total length of the polygonal rod (1) and the longitudinal seam repair depth is not more than 33% of the wall thickness of the polygonal rod (1).
7. The welding method of the polygonal rod according to claim 1, wherein the weld of the polygonal rod (1) has a surface unevenness of not more than 2mm within any length of 25 mm; within any 500mm length of the welding line, the width deviation of the welding line is not more than 2 mm; the width deviation is not more than 3mm in the whole range of the length of the ribbed bar.
8. The welding method of the polygonal rod according to claim 1, wherein the depth of the undercut of the weld surface of the polygonal rod (1) is not more than 0.5mm, the continuous length of the undercut of the weld is not more than 100mm, and the sum of the total length of the undercuts at both sides of the weld is not more than 10% of the length of the weld.
9. The polygonal rod welding method according to claim 1, wherein a grinding wheel of the grinding device (5) is parallel to a straight edge surface of the polygonal rod (1), the center of the grinding wheel is located on the weld joint, when the sharp corner of the weld joint of the polygonal rod (1) is ground, the sharp corner of the weld joint of the grinding wheel and the polygonal rod (1) is in a K shape, and the amplitude of the welding device (4) in the direction of the weld joint is 200-300 mm.
10. A polygonal rod welding method according to claim 1 characterized in that the rotation speed of the polishing machine is 400r/min, the moving speed of the polishing machine is 1.5-2m/min, and the polishing machine moves at least one round trip in the length direction of the polygonal rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812079.8A CN113458692B (en) | 2021-07-19 | 2021-07-19 | Multi-edge rod welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110812079.8A CN113458692B (en) | 2021-07-19 | 2021-07-19 | Multi-edge rod welding method |
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| CN113458692A true CN113458692A (en) | 2021-10-01 |
| CN113458692B CN113458692B (en) | 2023-05-23 |
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| CN110159053A (en) * | 2019-06-25 | 2019-08-23 | 中电建成都铁塔有限公司 | A kind of power transmission line polygon rod structure and its manufacture craft |
| CN209648001U (en) * | 2019-01-28 | 2019-11-19 | 茂名重力石化装备股份公司 | A kind of collet elbow inner pipe Deep Hole Welding group is to device |
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2021
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2363214A1 (en) * | 2010-03-02 | 2011-09-07 | Ferro Umformtechnik GmbH & Co. KG | Method for producing a welded hollow profile and welded hollow profile |
| CN202506937U (en) * | 2012-03-29 | 2012-10-31 | 安徽省绩溪家德钢结构有限责任公司 | Conical steel pipe welding bracket |
| CN106825875A (en) * | 2017-03-10 | 2017-06-13 | 广州增立钢管结构股份有限公司 | A kind of steel pipe vertical seam double-submerged arc technique |
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| CN207272591U (en) * | 2017-10-11 | 2018-04-27 | 浙江宁远塔桅制造有限公司 | A kind of transmitting device of steel pipe linking machine |
| CN107695556A (en) * | 2017-11-18 | 2018-02-16 | 郑州越达科技装备有限公司 | A kind of straight seam welding machine for being used for electric power bar or communication rod |
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