CN109366059B - Flexible tool for fillet weld friction stir welding and use method thereof - Google Patents
Flexible tool for fillet weld friction stir welding and use method thereof Download PDFInfo
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- CN109366059B CN109366059B CN201811236414.9A CN201811236414A CN109366059B CN 109366059 B CN109366059 B CN 109366059B CN 201811236414 A CN201811236414 A CN 201811236414A CN 109366059 B CN109366059 B CN 109366059B
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- fillet weld
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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
- B23K37/0461—Welding tables
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
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- Optics & Photonics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a flexible tool for fillet weld friction stir welding, which realizes the friction stir welding of inner and outer fillet welds of workpieces with different thicknesses. Two identical cushion blocks are connected through a fixing block bolt to form a workpiece mounting platform. The position of the clamping plate is adjusted by adjusting the screwing depth of the bolt, so that the workpiece is driven to move upwards along the surface of the cushion block, and the fillet weld is aligned. The pressing plate fixes and clamps the workpiece through the fastening bolt, and clamping of the fillet weld at the outer side of the workpiece is realized. And (4) the positions of the two cushion blocks are exchanged, other parts are reassembled, and the fillet weld at the inner side of the workpiece can be clamped. The tool realizes clamping of the inside and outside fillet weld workpieces through one set of parts, and can realize clamping and positioning of workpieces with different thicknesses. The fillet weld workpieces at different angles can be welded by replacing the cushion blocks with different sizes.
Description
Technical Field
The invention relates to a welding tool, in particular to a flexible tool for fillet weld friction stir welding, which can realize the welding of inner and outer fillet welds of workpieces with different thicknesses.
Background
The great technical advantages of friction stir welding technology in the field of manufacturing low-melting-point alloy structures enable the application of friction stir welding technology to be rapidly expanded. The special solid-phase connection characteristics of the material enable advantages in connection strength, deformation and residual stress level, corrosion resistance and the like. The material is widely applied to the fields of aerospace, high-speed rail vehicles, automobiles, ships, weapons and the like.
In actual construction, there are a large number of non-planar or non-near-planar joint forms such as fillet welds. Because the workpieces need solid back support in the friction stir welding process, the tool for fillet weld fusion welding in the existing patent is not suitable for friction stir welding. In the friction stir welding of fillet welds, the prior art is mostly realized by adding process cushion blocks and converting the process cushion blocks into a measure similar to plane butt welding. However, the tooling is easy to cause the defects of incomplete penetration, weak connection and the like in a welding seam area, the utilization rate of the process cushion block is low, two sets of tooling are usually needed for welding the inside and outside fillet welds respectively, and the cost is high. At present, no relevant patent of a special tool for fillet weld friction stir welding exists. Therefore, the flexible tool is simple in structure, good in universality and capable of achieving friction stir welding of the inner side fillet weld and the outer side fillet weld of workpieces with different thicknesses, and has important significance for reducing cost and improving welding quality and yield of products.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the flexible tool which is simple in structure and can realize the friction stir welding of the inner side fillet weld and the outer side fillet weld of workpieces with different thicknesses.
The utility model provides a fillet weld friction stir welding is with flexible frock, includes: the two same cushion blocks, the connecting blocks, the fixing blocks, the adjusting blocks, the clamping plates and the pressing plates; the cushion blocks are connected through bolts on the connecting blocks, and a workpiece mounting platform is formed by the surfaces of the cushion blocks; the fixed block is arranged on the cushion block through a screw and is fixed with the machine tool workbench through a bolt; the pressing plate is mounted on the cushion block through screws, and bolts on the pressing plate can clamp and position workpieces with different thicknesses; the clamping plate is placed on the surface of the cushion block and used for clamping a workpiece and driving the workpiece to move along the workpiece mounting platform so as to align the fillet weld, and the clamping plate is in contact with the adjusting block; adjusting bolts are screwed into the threaded through holes of the adjusting blocks, the position of the clamping plate is adjusted through the adjusting bolts, and the adjusting blocks are mounted on the cushion blocks through screws.
Preferably, at least 2 connecting blocks are arranged at the connecting positions of the cushion blocks.
Preferably, a gap exists between two adjacent connecting blocks, and the gap ranges from about 2mm to 4 mm.
Preferably, the welding of fillet weld workpieces with different angles is adjusted by adjusting the cushion blocks with different surfaces.
A use method of a flexible tool for fillet weld friction stir welding,
the method comprises the following steps: the two same cushion blocks are connected through bolts on the connecting blocks, after the bolts are fastened, the two cushion blocks are attached, and the surfaces of the two cushion blocks form a workpiece mounting platform;
step two: the fixed block is mounted on the cushion block through a screw and fixed with a machine tool workbench through a bolt to complete the fixation of the flexible tool;
step three: the clamping plate is placed on the surface of the cushion block; an adjusting bolt is screwed into a threaded through hole of the adjusting block, the position of the clamping plate is adjusted through the adjusting bolt, and the adjusting block is mounted on the cushion block through a screw;
step four: the workpiece is placed on the clamping plate, and the position of the clamping plate is adjusted through the screwing depth of the adjusting bolt, so that the workpiece is driven to move along the workpiece mounting platform, and the fillet weld is aligned;
step five: the pressing plate is installed on the cushion block through screws, the bolts are screwed into the threaded through holes of the pressing plate, the bolts are screwed tightly, and clamping of the workpiece is completed.
Preferably, the position of the adjusting cushion block can be clamped by different fillet welds.
Compared with the prior art, the flexible tool for fillet weld friction stir welding and the use method thereof provided by the invention have the advantages that: the flexibility is high, the cost is low, and the clamping of the inside and outside fillet welds of workpieces with different thicknesses can be realized by one set of tool; the friction stir welding of the fillet weld can be directly realized without being converted into plane butt welding, the defects of incomplete penetration, weak connection and the like of a weld joint area are avoided, and the welding quality is improved.
Drawings
FIG. 1 shows an outside fillet weld welding tool
FIG. 2 shows an inside fillet weld welding tool
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Examples
The present invention will be described in more detail with reference to the following examples, which are given in conjunction with the accompanying drawings. These examples are merely illustrative of the best mode of carrying out the invention and do not limit the scope of the invention in any way.
For the purpose of illustrating the technical content, the constructional features, the achieved objects and the effects of the invention in detail, reference will be made to the following detailed description of the embodiments in conjunction with the accompanying drawings. As shown in FIG. 1, the flexible tool for fillet weld friction stir welding comprises: bolt 1, clamp plate 2, splint 3, regulating block 4, adjusting bolt 5, fixed block 6, cushion 7, connecting block 8. Wherein, the pressing plate 2, the adjusting block 4, the fixing block 6 and the connecting block 8 are fixed on the cushion block 7 through screws. And as shown in fig. 2, the inner side fillet weld of the workpiece can be carried out by replacing the position of the adjusting cushion block 7 and reassembling other parts.
Referring to fig. 1 to 2, the method for welding by using the tool of the present invention includes the following steps:
the method comprises the following steps: the two same cushion blocks 7 are connected through bolts on the connecting block 8, after the bolts are fastened, the two cushion blocks 7 are attached, and the surfaces of the two cushion blocks form a workpiece mounting platform;
step two: the fixed block 6 is mounted on the cushion block 7 through a screw and fixed with a machine tool workbench through a bolt to complete the fixation of the flexible tool;
step three: the clamping plate 3 is placed on the surface of the cushion block 7; an adjusting bolt 5 is screwed into a threaded through hole of the adjusting block 4, the position of the clamping plate 3 is adjusted through the adjusting bolt 5, and the adjusting block 4 is installed on the cushion block 7 through a screw;
step four: a workpiece is placed on the clamping plate 3, the position of the clamping plate 3 is adjusted through the screwing depth of the adjusting bolt 5, and then the workpiece is driven to move along the workpiece mounting platform, so that a fillet weld is aligned;
step five: the pressing plate 2 is installed on the cushion block 7 through screws, the bolts 1 are screwed into the threaded through holes of the pressing plate 2, the bolts 1 are screwed tightly, and clamping of a workpiece is completed.
Step six: and clamping different fillet welds can be performed on the positions of the adjusting cushion blocks 7.
Claims (2)
1. A flexible tool for fillet weld friction stir welding is characterized in that,
the method comprises the following steps: the two same cushion blocks (7), the connecting block (8), the fixing block (6), the adjusting block (4), the clamping plate (3) and the pressing plate (2);
the cushion blocks (7) are connected through bolts on the connecting blocks (8), and a workpiece mounting platform is formed by the surfaces of the cushion blocks (7);
the fixed block (6) is mounted on the cushion block (7) through a screw and is fixed with a machine tool workbench through a bolt;
the pressing plate (2) is mounted on the cushion block (7) through screws, and the bolts (1) on the pressing plate (2) can clamp and position workpieces with different thicknesses;
the clamping plate (3) is placed on the surface of the cushion block (7) and used for clamping a workpiece and driving the workpiece to move along the workpiece mounting platform so as to align fillet welds, and the clamping plate (3) is in contact with the adjusting block (4);
an adjusting bolt (5) is screwed into a threaded through hole of the adjusting block (4), the position of the clamping plate (3) is adjusted through the adjusting bolt (5), and the adjusting block (4) is mounted on the cushion block (7) through a screw;
the number of the connecting blocks (8) is at least 2 at the connecting position of the cushion blocks (7);
a gap is formed between every two adjacent connecting blocks (8), and the range of the gap is 2-4 mm;
and the welding of fillet weld workpieces with different angles is adjusted by adjusting the cushion blocks (7) with different surfaces.
2. A use method of a flexible tool for fillet weld friction stir welding is characterized by comprising the flexible tool for fillet weld friction stir welding of claim 1,
the method comprises the following steps: the two same cushion blocks (7) are connected through bolts on the connecting block (8), after the bolts are fastened, the two cushion blocks (7) are attached, and the surfaces of the two cushion blocks form a workpiece mounting platform;
step two: the fixed block (6) is mounted on the cushion block (7) through a screw and fixed with a machine tool workbench through a bolt to complete the fixation of the flexible tool;
step three: the clamping plate (3) is placed on the surface of the cushion block (7); an adjusting bolt (5) is screwed into a threaded through hole of the adjusting block (4), the position of the clamping plate (3) is adjusted through the adjusting bolt (5), and the adjusting block (4) is mounted on the cushion block (7) through a screw;
step four: a workpiece is placed on the clamping plate (3), and the position of the clamping plate (3) is adjusted through the screwing-in depth of the adjusting bolt (5), so that the workpiece is driven to move along the workpiece mounting platform, and the fillet weld is aligned;
step five: the pressing plate (2) is mounted on the cushion block (7) through a screw, the bolt (1) is screwed into the threaded through hole of the pressing plate (2), the bolt (1) is screwed, and clamping of a workpiece is completed;
the positions of the adjusting cushion blocks (7) can be clamped by different fillet welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236414.9A CN109366059B (en) | 2018-10-23 | 2018-10-23 | Flexible tool for fillet weld friction stir welding and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236414.9A CN109366059B (en) | 2018-10-23 | 2018-10-23 | Flexible tool for fillet weld friction stir welding and use method thereof |
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| Publication Number | Publication Date |
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| CN109366059A CN109366059A (en) | 2019-02-22 |
| CN109366059B true CN109366059B (en) | 2021-04-06 |
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| CN113199197B (en) * | 2021-04-20 | 2022-07-01 | 武汉理工大学 | Automatic angle regulation's welding angle locator |
| CN113523536B (en) * | 2021-08-04 | 2023-04-18 | 重庆新铝时代科技股份有限公司 | Welding process of L-shaped large-section cavity profile |
| CN113478154B (en) * | 2021-09-07 | 2021-11-09 | 江苏恒康电力科技有限公司 | High-low voltage electric power cross arm preparation welding frock clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002263836A (en) * | 2001-03-07 | 2002-09-17 | Hitachi Constr Mach Co Ltd | Fillet bead shaping method for fillet weld joint and fillet weld joint |
| KR101166966B1 (en) * | 2010-03-03 | 2012-07-20 | 한국기계연구원 | A Zig for Friction Stir Welding and A Welding Method Using thereof |
| CN203863221U (en) * | 2014-05-16 | 2014-10-08 | 南京煜宸激光科技有限公司 | Tool fixture for ship type sheet laser welding process |
| CN204843251U (en) * | 2015-08-03 | 2015-12-09 | 黄山学院 | Following aluminium alloy plate material friction stir welding of 1mm connects and uses high temperature clamping device |
| CN105689886B (en) * | 2016-04-25 | 2018-02-23 | 抚顺金源科技机械制造有限公司 | One kind is used for the butt-welded lateral compression frock of sheet material agitating friction |
| CN205764429U (en) * | 2016-05-18 | 2016-12-07 | 南京合信智能装备有限公司 | A kind of T connector agitating friction weldering fixing tool |
| CN207534154U (en) * | 2017-11-28 | 2018-06-26 | 重庆派馨特机电有限公司 | Convenient for the agitating friction welding clamp to workpiece heat |
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