CN113458692B - Multi-edge rod welding method - Google Patents
Multi-edge rod welding method Download PDFInfo
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- CN113458692B CN113458692B CN202110812079.8A CN202110812079A CN113458692B CN 113458692 B CN113458692 B CN 113458692B CN 202110812079 A CN202110812079 A CN 202110812079A CN 113458692 B CN113458692 B CN 113458692B
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- welding
- edge rod
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- seam
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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
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- 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 multi-edge rod welding method, 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 the joint of the multi-edge rod to be welded at present; (2) The traction welding device moves along the length direction of the multi-edge rod, and the round bar is spot-welded on the multi-edge rod at the joint of the multi-edge rod; (3) Automatically seaming the seam of the multi-edge rod by adopting a rod seaming machine, welding the outside of the seam of the multi-edge rod, welding two end surfaces and round bars of the seam 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 making the fillet weld tangent with the end surfaces of two sides of the joint of the multi-edge 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 welding, in particular to a multi-edge rod welding method.
Background
At present, the multi-edge lamp pole is welded outside, so that the welding line is full and is in an outward convex shape, and the welding line is cleaner and more attractive in the modern smart city construction process, safe and reliable, so that the welding line is polished to enable the appearance to be more attractive, but after the welding line on the surface of the lamp pole is polished, the strength of the welding line is influenced, so that a welding method capable of ensuring the welding strength and not damaging the attractive appearance is needed.
Disclosure of Invention
Aiming at the defects of the related prior art, the application provides a multi-edge rod welding method, which is characterized in that round bars which can be abutted to joint positions are added from the inside of a rod body, the round bars are supported to prevent shaking, the center positions of the round bars are aligned with transverse planes, two end faces of the joint positions of the round bars and the rod body are welded together, the welding lines can be reinforced from the inside of the welding lines, the welding effect is improved, the welding strength is ensured, and the practicability is higher.
In order to achieve the above object, the present invention adopts the following technique:
a multi-edge rod welding method comprises the following steps:
step one: moving a supporting device into the multi-edge rod, supporting a round bar to prevent the round bar from shaking, enabling the round bar to contact with the multi-edge rod at a joint to be welded currently of the multi-edge rod, and enabling the center position of the round bar to be aligned with the transverse surface 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 on the multi-edge rod at joint positions of the multi-edge rod, and the distance between the spot welding points of the round bars is 50mm;
step three: automatically seaming the seam of the multi-edge rod by adopting a rod seaming machine, welding the outside of the seam of the multi-edge rod, welding two end surfaces and round bars of the seam 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 making the fillet weld tangent with the end surfaces of two sides of the joint of the multi-edge rod;
step five: polishing the outer surface of the multi-edge rod welding seam by using a polishing machine.
Further, three types of multi-edge rod thickness specifications are respectively 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 CHF101; when the thickness of the multi-edge rod material is 4mm, the speed of the multi-edge rod is 1-1.5m/min; when the thickness of the multi-edge rod material is 6mm, the speed of the multi-edge rod is 0.6-0.9m/min; when the thickness of the multi-edge rod material is 8mm, the speed of the multi-edge rod is 0.5-0.8m/min.
Further, the length of the longitudinal seam repair is not more than 20% of the total length of the polygonal rod, and the depth of the longitudinal seam repair is not more than 33% of the wall thickness of the polygonal rod; the welding line of the multi-edge rod is within any length of 25mm, and the concave-convex deviation of the surface of the welding line is not more than 2mm; the width deviation of the welding line is not more than 2mm within any 500mm length of the welding line; the width deviation is not more than 3mm in the whole length range of the prismatic rod; the depth of the undercut on the surface of the multi-edge rod welding seam is not more than 0.5mm, the continuous length of the undercut of the welding seam is not more than 100mm, and the sum of the total lengths of the undercut on two sides of the welding seam is not more than 10% of the length of the welding seam.
Further, during polishing, the grinding wheel of the polishing device is parallel to the straight edge surface of the multi-edge rod, the center of the grinding wheel is positioned on the welding line, and when the sharp angle of the welding line of the multi-edge rod is polished, the sharp angle of the welding line of the grinding wheel and the multi-edge rod is K-shaped, and the amplitude of the welding device in the direction of the welding line is 200-300mm.
Further, the rotating 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 multi-edge rod.
The invention has the beneficial effects that: the round strips are added and welded with the two end surfaces of the joint of the multi-edge rod, so that the welding effect is improved, and the welding strength is enhanced; after the welding line is polished, the welding strength is not reduced, so that the attractiveness is ensured, and the safety is improved; the amplitude of the polishing device along the welding line direction is set between 200 mm and 300mm, so that the polished welding line is effectively prevented from being scattered and irregular.
Drawings
The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the invention.
Fig. 1 is a schematic perspective view of an overall structure according to an embodiment of the present application.
Fig. 2 is a schematic perspective view of a polishing device and a multi-edge rod according to an embodiment of the present application.
Fig. 3 is a front view of a polishing device and a multi-edged pole according to an embodiment of the present application.
Fig. 4 is a table of welding parameters of the rod combining machine according to the embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
As shown in fig. 1 to 4, the present example provides a multi-edge welding method, which includes the following steps:
step one: the supporting device 2 is moved into the multi-edge rod 1, the round bar 3 is held to prevent the round bar from shaking, the round bar 3 is contacted with the multi-edge rod 1 at the joint of the multi-edge rod 1, and the center position of the round bar 3 is aligned with the transverse surface of the multi-edge rod 1.
Step two: the traction welding device 4 moves along the length direction of the multi-edge rod 1, the round bar 3 is spot-welded on the multi-edge rod 1 at the joint of the multi-edge rod 1, and the distance between the spot-welded points of the round bar 3 is 50mm.
Step three: the joint of the multi-edge rod 1 is automatically jointed by a rod jointing machine, the multi-edge rod 1 moves along the length direction, the joint of the multi-edge rod 1 is welded outside, two end surfaces of the joint of the multi-edge rod 1 and the round bar 3 are welded together, and a fillet weld is formed; the length of the longitudinal seam repair is not more than 20% of the total length of the multi-edge rod 1, and the depth of the longitudinal seam repair is not more than 33% of the wall thickness of the multi-edge rod 1; the welding line of the multi-edge rod 1 is within any length of 25mm, and the concave-convex deviation of the surface of the welding line is not more than 2mm; the width deviation of the welding line is not more than 2mm within any 500mm length of the welding line; the width deviation is not more than 3mm in the whole length range of the prismatic rod; the depth of the seam surface undercut of the multi-edge rod 1 is not more than 0.5mm, the continuous length of the seam undercut is not more than 100mm, and the sum of the total lengths of the seam undercuts at two sides of the seam is not more than 10% of the length of the seam.
Step four: after welding, polishing the fillet weld by using a polishing device 5, polishing the fillet weld into an arc shape, and making the fillet weld tangent to the end surfaces of two sides of the joint of the polygonal rod 1, wherein a grinding wheel of the polishing device 5 is parallel to the straight side surface of the polygonal rod 1, the center of the grinding wheel is positioned on the welding line, when the sharp angle of the welding line of the polygonal rod 1 is polished, the sharp angle of the welding line between the grinding wheel and the polygonal rod 1 is K-shaped, and the amplitude of a welding device 4 in the direction of the fillet weld is 200-300mm.
Step five: and polishing the welding line of the multi-edge 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 back and forth in the length direction of the multi-edge rod 1.
Specifically, the thickness of the multi-edge rod 1 is three, namely 4mm, 6mm and 8mm, and when the thickness of the multi-edge rod 1 is 4mm, the moving speed of the multi-edge rod 1 is 1-1.5m/min; when the thickness of the material of the multi-edge rod 1 is 6mm, the moving speed of the multi-edge rod 1 is 0.6-0.9m/min; when the thickness of the material of the multi-edge rod 1 is 8mm, the moving speed of the multi-edge rod 1 is 0.5-0.8m/min; the welding voltage of the rod combining machine is 28-30V, the current is 240-300A, the diameter of a welding wire is 1.2mm, the welding flux is CHF101, and the welding speed is 0.5-1.5m/min.
Specific embodiments are described below:
firstly, moving a multi-edge rod 1 into a rod combining machine and fixing, then putting a supporting device 2 into the multi-edge rod 1, enabling the supporting device 2 to hold 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, enabling the center position of the round bar 3 to be aligned with the transverse plane of the multi-edge rod 1, then, pulling a welding device 4 to move along the length direction of the multi-edge rod 1, spot-welding the round bar 3 on the end face of the joint of the multi-edge rod 1 once every 50mm of moving spot welding; after the spot welding is finished, the supporting device 2 is removed, a rod closing machine is started, the joint of the multi-edge rods 1 is extruded, two end faces of the joint of the multi-edge rods 1 are tightly attached, then the multi-edge rods 1 are driven to move at a speed of 0.5-0.8m/min along the length direction, and the multi-edge rods 1 are welded at the same time by the rod closing machine; after welding, polishing the welding line of the multi-edge rod 1, firstly, enabling a grinding wheel of a polishing device 5 to be parallel to the straight edge surface of the multi-edge rod 1, enabling the center of the grinding wheel to be positioned on the welding line, polishing until the grinding wheel is parallel to the straight edge surface, polishing the other side surface of the welding line in the same way, polishing sharp corners of the welding line, enabling the grinding wheel of the polishing device 5 and the sharp corners to form a K shape, and enabling the grinding wheel and the straight edge surface to form 22.5 degrees until polishing is smooth; finally, the multi-edge rod 1 is polished, the angle between a polishing abrasive belt and a welding line is adjusted, the abrasive belt surface is guaranteed to completely cover the welding line, the rotating speed of the polishing machine is set to 400r/min, the moving speed is 1.5-2m/min, the multi-edge rod 1 moves back and forth in the length direction, the welding line is guaranteed to be thoroughly polished, and finally the formed welding line is round and natural.
The round bar for welding is supported while the walking mechanism of the example can move, so that the round bar is prevented from shaking in the welding process; the cross section of the roller wheel positioned on the end face is V-shaped, so that the requirements of round bars with different diameters can be met; the telescopic rod of the travelling mechanism is provided with a spring, so that the telescopic rod is automatically suitable for multi-edge rod bodies with different diameters, can be also suitable for rod bodies with cone structures, and greatly improves the practicability; meanwhile, the connecting blocks are connected by adopting connecting rods, the connecting rods can move in the connecting blocks, and the distance between the connecting blocks can be adjusted according to the length of the round bar and the distance between the spot-welded points, so that different requirements can be met; and the polishing mechanism with the shape matched with the polygonal rod is used for improving the working efficiency of polishing the welding seam.
The above is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The multi-edge rod welding method is characterized by comprising the following steps of:
1), moving a supporting device (2) into the multi-edge rod (1), holding a round bar (3), and enabling the round bar (3) to be in contact with the multi-edge rod (1) at the joint where the multi-edge rod (1) is to be welded currently, wherein the center position of the round bar (3) is aligned with the cross section of the multi-edge rod (1);
2) The traction welding device (4) moves along the length direction of the multi-edge rod (1), a round bar (3) is spot-welded on the multi-edge rod (1) at a joint of the multi-edge rod (1), and the distance between the spot-welded points of the round bar (3) is 50mm;
3) Automatically seaming the seam of the multi-edge rod (1) by adopting a rod seaming machine, enabling the multi-edge rod (1) to move along the length direction, welding the outside of the seam of the multi-edge rod (1), welding two end surfaces of the seam of the multi-edge rod (1) and the round strip (3) together, forming a fillet weld, welding the round strip (3) and the two end surfaces of the seam of the multi-edge rod (1) together, reinforcing the weld from the inside of the weld, and ensuring the welding strength;
4) After welding, polishing the fillet weld by using a polishing device (5), polishing the fillet weld into an arc shape, and making the fillet weld tangent with the end surfaces of two sides of the joint of the polygonal rod (1);
5) And polishing the welding seam of the multi-edge rod (1) by using a polishing machine.
2. The method for welding the multi-edge rod according to claim 1, wherein the thickness specification of the multi-edge rod (1) is 4mm, 6mm and 8mm, the voltage is 28-30V, the current is 240-300A, the diameter of a welding wire is 1.2mm, the welding flux is CHF101, and the moving speed of the multi-edge rod (1) is 0.5-1.5m/min.
3. The method for welding the multi-edge rod according to claim 2, wherein when the thickness of the material of the multi-edge rod (1) is 4mm, the moving speed of the multi-edge rod (1) is 1-1.5m/min; when the thickness of the material of the multi-edge rod (1) is 6mm, the moving speed of the multi-edge rod (1) is 0.6-0.9m/min; when the thickness of the material of the multi-edge rod (1) is 8mm, the moving speed of the multi-edge rod (1) is 0.5-0.8m/min.
4. The method of welding a multi-ribbed bar according to claim 1, wherein a longitudinal seam repair length is not more than 20% of a total length of the multi-ribbed bar (1), and a longitudinal seam repair depth is not more than 33% of a wall thickness of the multi-ribbed bar (1).
5. The multi-edge bar welding method according to claim 1, wherein the welding seam of the multi-edge bar (1) is within any 25mm length, and the uneven deviation of the welding seam surface is not more than 2mm; the width deviation of the welding line is not more than 2mm within any 500mm length of the welding line; the width deviation is not more than 3mm over the entire length of the polygonal rod.
6. The method for welding the multi-edge rod according to claim 1, wherein the depth of the undercut on the surface of the welding seam of the multi-edge rod (1) is not more than 0.5mm, the continuous length of the undercut of the welding seam is not more than 100mm, and the sum of the total lengths of the two side edges of the welding seam is not more than 10% of the length of the welding seam.
7. The multi-edge 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 multi-edge rod (1), the center of the grinding wheel is positioned on the welding line, and when sharp corners of the welding line of the multi-edge rod (1) are ground, sharp corners of the welding line of the grinding wheel and the multi-edge rod (1) are K-shaped.
8. The method for welding a multi-ribbed bar according to claim 1, wherein the rotational speed of the polisher is 400r/min, the moving speed of the polisher is 1.5-2m/min, and the polisher moves at least one back and forth in the length direction of the multi-ribbed bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| CN202110812079.8A CN113458692B (en) | 2021-07-19 | 2021-07-19 | Multi-edge rod welding method |
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| CN113458692A CN113458692A (en) | 2021-10-01 |
| CN113458692B true CN113458692B (en) | 2023-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102010010008A1 (en) * | 2010-03-02 | 2011-09-08 | Ferro Umformtechnik Gmbh & Co. Kg | Process 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 |
| CN107081535B (en) * | 2017-07-03 | 2019-05-03 | 西京学院 | A kind of steel pipe grafting connector improving structural strength |
| 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 |
| CN107695556B (en) * | 2017-11-18 | 2024-03-01 | 郑州越达科技装备有限公司 | Straight seam welding machine for electric power rod or communication rod |
| CN108673055B (en) * | 2018-07-25 | 2020-04-21 | 张河 | Welding process |
| 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 |
| 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 |
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