CN107984066B - Double-side synchronous tensioning mechanism for argon arc welding circular weld joint - Google Patents
Double-side synchronous tensioning mechanism for argon arc welding circular weld joint Download PDFInfo
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- CN107984066B CN107984066B CN201711232822.2A CN201711232822A CN107984066B CN 107984066 B CN107984066 B CN 107984066B CN 201711232822 A CN201711232822 A CN 201711232822A CN 107984066 B CN107984066 B CN 107984066B
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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
- B23K9/32—Accessories
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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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- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A bilateral synchronous tensioning mechanism for argon arc welding of annular welding seams comprises a support, a left cover plate, a right cover plate, a left expansion block, a right expansion block, a pull cone and a press cone; the left cover plate and the right cover plate are symmetrically and fixedly arranged at two sides of the support, a plurality of expansion block mounting guide holes are formed between the support and the left cover plate and between the support and the right cover plate, an expansion block is mounted in each expansion block mounting guide hole, and force transmission rollers are arranged at the inner ends of the left expansion block and the right expansion block; the pull cone is divided into a cone head and a pull rod, the cone head and the press cone are in a cone frustum structure, and the pull rod is positioned at the small-diameter end of the cone head; a pull rod through hole is formed in the center of the pressing cone, the pressing cone is sleeved on the pull rod through hole, and the small-diameter end of the cone head is arranged in a positive alignment with the small-diameter end of the pressing cone; a through hole is formed in the center of the support, the pull rod penetrates through the through hole and extends to the other side of the support, and the conical head and the pressing cone are in contact with the force transmission roller; a hollow hydraulic cylinder is sleeved on the pull rod outside the pressing cone, the top end of the cylinder rod is contacted with the large-diameter end of the pressing cone, and the bottom end of the cylinder barrel is fixed with the pull rod of the pulling cone through a fastening nut; the pull cone and the press cone are respectively in synchronous tensioning fit with the left and right expansion blocks.
Description
Technical Field
The invention belongs to the technical field of manufacturing of parts of an aero-engine, and particularly relates to a bilateral synchronous tensioning mechanism for an argon arc welding circular weld joint.
Background
At present, when an annular welding seam is welded in an argon arc welding mode, a simple workpiece tensioning mechanism is generally needed, and a tensioning block in the workpiece tensioning mechanism can simultaneously tension workpieces on two sides of the welding seam, so that the positioning of the workpieces on two sides of the welding seam is completed. However, when the inner diameters of the workpieces on the two sides of the welding seam are not consistent, the expansion block can cause the workpieces on the two sides of the welding seam to have different axial phenomena in the process of tensioning the workpieces, welding misalignment is caused, the misalignment is not uniform, and welding quality is finally affected.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a bilateral synchronous tensioning mechanism for argon arc welding of an annular welding seam, when the inner diameters of workpieces on two sides of the welding seam are inconsistent, the coaxiality of the workpieces on two sides of the welding seam can be ensured after the workpieces are tensioned, the occurrence of welding misalignment is effectively avoided, and the welding quality is obviously improved.
In order to achieve the purpose, the invention adopts the following technical scheme: a bilateral synchronous tensioning mechanism for argon arc welding of annular welding seams comprises a support, a left cover plate, a right cover plate, a left expansion block, a right expansion block, a pull cone and a press cone; the support is of a disc-shaped structure, the left cover plate and the right cover plate are both of circular structures, the left cover plate and the right cover plate are symmetrically and fixedly arranged on two sides of the support, and the support, the left cover plate and the right cover plate are coaxially arranged; a plurality of left expansion block mounting guide holes are formed between the support and the left cover plate, a plurality of right expansion block mounting guide holes are formed between the support and the right cover plate, and the left expansion block mounting guide holes and the right expansion block mounting guide holes are uniformly distributed along the circumferential direction; a left expansion block is arranged in each left expansion block mounting guide hole, and a left force transmission roller is arranged at the inner end of each left expansion block; a right expansion block is arranged in each right expansion block mounting guide hole, and a right force transmission roller is arranged at the inner end of each right expansion block; the pull cone and the press cone are respectively in synchronous tensioning fit with the left expansion block and the right expansion block.
The cone is divided into a cone head and a pull rod, the cone head of the cone is of a cone frustum structure, and the pull rod is located at the small-diameter end of the cone head of the cone.
The pressure awl is the circular cone frustum structure, has seted up the pull rod at the center of pressing the awl and has passed the hole, presses the awl to pass the hole suit through the pull rod on the pull rod of drawing the awl, and the path end of drawing the awl head is just to setting up with the path end of pressing the awl.
The center of the support is provided with a through hole, the pull rod of the pull cone penetrates through the through hole and extends to the other side of the support, and the pull cone head and the press cone are respectively contacted with the left force transmission roller and the right force transmission roller.
The pull-cone pull rod outside the press cone is sleeved with a hollow hydraulic cylinder, the top end of a cylinder rod of the hollow hydraulic cylinder is contacted with the large-diameter end of the press cone, and the bottom end of a cylinder barrel of the hollow hydraulic cylinder is fixed with the pull-cone pull rod through a fastening nut and a gasket.
The invention has the beneficial effects that:
compared with the prior art, when the inner diameters of the workpieces on the two sides of the welding line are not consistent, the coaxiality of the workpieces on the two sides of the welding line can be ensured after the workpieces are tensioned, the occurrence of welding misalignment is effectively avoided, and the welding quality is obviously improved.
Drawings
FIG. 1 is a schematic structural view of a double-side synchronous tensioning mechanism for argon arc welding of an annular weld joint according to the present invention;
in the figure, 1-support, 2-left cover plate, 3-right cover plate, 4-left expansion block, 5-right expansion block, 6-drawing cone, 7-pressing cone, 8-left force transmission roller, 9-right force transmission roller, 10-through hole, 11-hollow hydraulic cylinder, 12-fastening nut, 13-gasket, 14-left half-workpiece, 15-right half-workpiece and 16-circular welding seam.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in FIG. 1, a bilateral synchronous tensioning mechanism for argon arc welding circular weld comprises a support 1, a left cover plate 2, a right cover plate 3, a left expansion block 4, a right expansion block 5, a pull cone 6 and a press cone 7; the support 1 is of a disc-shaped structure, the left cover plate 2 and the right cover plate 3 are both of circular structures, the left cover plate 2 and the right cover plate 3 are symmetrically and fixedly arranged on two sides of the support 1, and the support 1, the left cover plate 2 and the right cover plate 3 are coaxially arranged; a plurality of left expansion block mounting guide holes are formed between the support 1 and the left cover plate 2, a plurality of right expansion block mounting guide holes are formed between the support 1 and the right cover plate 3, and the left expansion block mounting guide holes and the right expansion block mounting guide holes are uniformly distributed along the circumferential direction; a left expansion block 4 is arranged in each left expansion block mounting guide hole, and a left force transmission roller 8 is arranged at the inner end of each left expansion block 4; a right expansion block 5 is arranged in each right expansion block mounting guide hole, and a right force transmission roller 9 is arranged at the inner end of the right expansion block 5; the pull cone 6 and the press cone 7 are respectively in synchronous tensioning fit with the left expansion block 4 and the right expansion block 5.
The cone 6 is divided into a cone head and a pull rod, the cone head of the cone 6 is in a cone frustum structure, and the pull rod is located at the small-diameter end of the cone head of the cone 6.
The pressure awl 7 is the circular truncated cone structure, has seted up the pull rod at the center of pressure awl 7 and has passed the hole, presses awl 7 to pass the hole suit through the pull rod on the pull rod of drawing awl 6, and the path end of the conical head of drawing awl 6 is just to setting up with the path end of pressing awl 7.
A through hole 10 is formed in the center of the support 1, a pull rod of the pull cone 6 penetrates through the through hole 10 and extends to the other side of the support 1, and a cone head of the pull cone 6 and a pressing cone 7 are respectively in contact with the left force transmission roller 8 and the right force transmission roller 9.
The pull rod of the pull cone 6 outside the pressure cone 7 is sleeved with a hollow hydraulic cylinder 11, the top end of the cylinder rod of the hollow hydraulic cylinder 11 is contacted with the large-diameter end of the pressure cone 7, and the bottom end of the cylinder barrel of the hollow hydraulic cylinder 11 is fixed with the pull rod of the pull cone 6 through a fastening nut 12 and a gasket 13.
The one-time use process of the present invention is described below with reference to the accompanying drawings:
the left half workpiece 14 and the right half workpiece 15 to be welded are clamped and fixed, and the bilateral synchronous tensioning mechanism is needed to be used before argon arc welding in order to prevent welding deformation.
Firstly, the cylinder rod of the hollow hydraulic cylinder 11 is controlled to be in a retraction state, then the double-side synchronous tensioning mechanism is moved to the inner side of the circular welding line 16, and the left expansion block 4 and the right expansion block 5 are respectively positioned at two sides of the circular welding line 16.
The cylinder rod of the hollow hydraulic cylinder 11 is controlled to extend out, the cylinder barrel can synchronously pull the pull rod of the cone 6 backwards through the fastening nut 12 while the cylinder rod pushes and presses the cone 7, and then the synchronous opposite movement of the cone heads of the cone 7 and the cone 6 is realized.
In the process of synchronous opposite movement of the cone heads of the press cone 7 and the pull cone 6, the press cone 7 pushes the left expansion block 4 outwards by means of the left force transmission roller 8 and tightly tensions the left half-workpiece 14 by means of the left expansion block 4, and the cone head of the pull cone 6 pushes the right expansion block 5 outwards by means of the right force transmission roller 9 and tightly tensions the right half-workpiece 15 by means of the right expansion block 5. Therefore, even if the inner diameters of the left half workpiece 14 and the right half workpiece 15 on the two sides of the circumferential weld 16 are different, the left expansion block 4 and the right expansion block 5 respectively expand the left half workpiece 14 and the right half workpiece 15, so that the left half workpiece 14 and the right half workpiece 15 can be ensured to be coaxial, the occurrence of welding misalignment can be effectively avoided, and the welding quality can be obviously improved.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (1)
1. The utility model provides a two side synchronous tension mechanism that is used for argon arc welding circular weld which characterized in that: comprises a support, a left cover plate, a right cover plate, a left expansion block, a right expansion block, a pull cone and a press cone; the support is of a disc-shaped structure, the left cover plate and the right cover plate are both of circular structures, the left cover plate and the right cover plate are symmetrically and fixedly arranged on two sides of the support, and the support, the left cover plate and the right cover plate are coaxially arranged; a plurality of left expansion block mounting guide holes are formed between the support and the left cover plate, a plurality of right expansion block mounting guide holes are formed between the support and the right cover plate, and the left expansion block mounting guide holes and the right expansion block mounting guide holes are uniformly distributed along the circumferential direction; a left expansion block is arranged in each left expansion block mounting guide hole, and a left force transmission roller is arranged at the inner end of each left expansion block; a right expansion block is arranged in each right expansion block mounting guide hole, and a right force transmission roller is arranged at the inner end of each right expansion block; the pull cone and the press cone are respectively in synchronous tensioning fit with the right expansion block and the left expansion block; the pull cone is divided into a cone head and a pull rod, the cone head of the pull cone is of a cone frustum structure, and the pull rod is located at the small-diameter end of the cone head of the pull cone; the pressure cone is of a cone frustum structure, a pull rod through hole is formed in the center of the pressure cone, the pressure cone is sleeved on the pull rod of the pressure cone through the pull rod through hole, and the small-diameter end of the head of the pressure cone is arranged in a manner of being aligned to the small-diameter end of the pressure cone; a through hole is formed in the center of the support, a pull rod of the pull cone penetrates through the through hole and extends to the other side of the support, and a pull cone head and a press cone are respectively in contact with the right force transmission roller and the left force transmission roller; the pull-cone pull rod outside the press cone is sleeved with a hollow hydraulic cylinder, the top end of a cylinder rod of the hollow hydraulic cylinder is contacted with the large-diameter end of the press cone, and the bottom end of a cylinder barrel of the hollow hydraulic cylinder is fixed with the pull-cone pull rod through a fastening nut and a gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232822.2A CN107984066B (en) | 2017-11-30 | 2017-11-30 | Double-side synchronous tensioning mechanism for argon arc welding circular weld joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232822.2A CN107984066B (en) | 2017-11-30 | 2017-11-30 | Double-side synchronous tensioning mechanism for argon arc welding circular weld joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107984066A CN107984066A (en) | 2018-05-04 |
| CN107984066B true CN107984066B (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711232822.2A Active CN107984066B (en) | 2017-11-30 | 2017-11-30 | Double-side synchronous tensioning mechanism for argon arc welding circular weld joint |
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| CN (1) | CN107984066B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120498A (en) * | 1979-03-06 | 1980-09-16 | Mitsubishi Heavy Ind Ltd | Circumferential weld backing device |
| DE29616216U1 (en) * | 1995-10-13 | 1996-11-14 | Intertractor Ag | Device for tensioning and cushioning the idler wheel of tracked vehicles |
| CN101456109A (en) * | 2007-12-10 | 2009-06-17 | 河南森源电气股份有限公司 | Stretchable mandrel device capable of ensuring porous coaxing |
| CN202507016U (en) * | 2012-03-16 | 2012-10-31 | 贵州红湖发动机零部件有限公司 | Expanding and welding device for annular weld joints of sheet metal parts in automatic welding process |
| CN202877977U (en) * | 2012-10-08 | 2013-04-17 | 邵阳维克液压股份有限公司 | Frock clamp for tensioning inner hole |
| CN205271435U (en) * | 2015-11-16 | 2016-06-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Fine adjusting device for be used for automatic centering to rise tightly |
| CN105880659A (en) * | 2016-06-15 | 2016-08-24 | 中信戴卡股份有限公司 | High-precision tensioning device |
| CN205834763U (en) * | 2016-07-28 | 2016-12-28 | 李世斌 | Tubular tubing centering fixation kit |
-
2017
- 2017-11-30 CN CN201711232822.2A patent/CN107984066B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120498A (en) * | 1979-03-06 | 1980-09-16 | Mitsubishi Heavy Ind Ltd | Circumferential weld backing device |
| DE29616216U1 (en) * | 1995-10-13 | 1996-11-14 | Intertractor Ag | Device for tensioning and cushioning the idler wheel of tracked vehicles |
| CN101456109A (en) * | 2007-12-10 | 2009-06-17 | 河南森源电气股份有限公司 | Stretchable mandrel device capable of ensuring porous coaxing |
| CN202507016U (en) * | 2012-03-16 | 2012-10-31 | 贵州红湖发动机零部件有限公司 | Expanding and welding device for annular weld joints of sheet metal parts in automatic welding process |
| CN202877977U (en) * | 2012-10-08 | 2013-04-17 | 邵阳维克液压股份有限公司 | Frock clamp for tensioning inner hole |
| CN205271435U (en) * | 2015-11-16 | 2016-06-01 | 沈阳黎明航空发动机(集团)有限责任公司 | Fine adjusting device for be used for automatic centering to rise tightly |
| CN105880659A (en) * | 2016-06-15 | 2016-08-24 | 中信戴卡股份有限公司 | High-precision tensioning device |
| CN205834763U (en) * | 2016-07-28 | 2016-12-28 | 李世斌 | Tubular tubing centering fixation kit |
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| Publication number | Publication date |
|---|---|
| CN107984066A (en) | 2018-05-04 |
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