CN113664358A - Welding fixture and using method thereof - Google Patents
Welding fixture and using method thereof Download PDFInfo
- Publication number
- CN113664358A CN113664358A CN202111156372.XA CN202111156372A CN113664358A CN 113664358 A CN113664358 A CN 113664358A CN 202111156372 A CN202111156372 A CN 202111156372A CN 113664358 A CN113664358 A CN 113664358A
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- China
- Prior art keywords
- mandrel
- flat plate
- parts
- welding fixture
- positioning
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010894 electron beam technology Methods 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000007547 defect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B23K15/00—Electron-beam welding or cutting
- B23K15/0026—Auxiliary equipment
-
- 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
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
-
- 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
- B23K15/00—Electron-beam welding or cutting
- B23K15/06—Electron-beam welding or cutting within a vacuum chamber
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a welding fixture and a use method thereof, wherein the fixture is provided with four machining positions on a flat plate, so that the device can realize the clamping of four parts and can finish the electron beam welding of four short-shaft parts at one time; the defect that the electron beam welding equipment can only weld one part on one clamp at a time is effectively overcome; multiple times of vacuumizing caused by repeatedly clamping parts are saved, the working efficiency is improved, and meanwhile, the cost and the equipment occupation time caused by multiple times of vacuumizing are saved; the device is provided with four detachable positioning devices on the flat plate, and the detachable design mode is convenient for repairing the tool and can ensure the positioning of a plurality of parts; the parts are positioned by adopting inner holes, and the cover plate is compressed tightly, so that the positioning of the parts is ensured and the parts are convenient to install.
Description
Technical Field
The invention belongs to the technical field of electron beam welding, and particularly relates to a welding fixture and a using method thereof.
Background
As a special welding method, electron beam welding has the advantages of good welding accessibility, high joint strength, small welding deformation, large welding thickness, wide range of weldable materials and the like, and is increasingly used in the manufacturing process of precise parts. The aircraft engine is formed by welding a plurality of short shaft parts through electron beams, as shown in figure 1, the short shaft parts consist of an end face circumferential welding line, the axial height is about 160mm, the diameter of the welding line is about 130mm, only one welding can be completed by clamping the parts each time, the workload is very large, and the production efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a welding clamp and a using method thereof so as to solve the technical problem of low part clamping efficiency in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a welding fixture comprises a flat plate and a mandrel, wherein a plurality of processing positions are arranged on the flat plate, each processing position is provided with a positioning hole which is sunken downwards, and a positioning shaft is arranged in each positioning hole; the lower end of the mandrel penetrates through the center of the positioning shaft, the lower end of the mandrel is inserted into the flat plate, and the lower end of the mandrel is connected with the flat plate; the mandrel, the positioning hole and the positioning shaft are coaxial;
when the welding fixture clamps parts, a part is arranged on each machining position, the core shaft and the parts are coaxial, a cover plate is arranged on the upper end face of each part, the upper end of the core shaft penetrates through the center of the cover plate, and the upper end of the core shaft is connected with a compression nut.
The invention is further improved in that:
preferably, the flat plate is rectangular, and four corners of the flat plate are provided with chamfers.
Preferably, the lower end face of the central part of the flat plate is connected with a connecting shaft through a bolt.
Preferably, the positioning shaft is positioned on the flat plate through a plurality of cylindrical pins.
Preferably, the positioning hole is connected with the flat plate through a plurality of inner hexagonal socket head cap screws.
Preferably, the positioning hole is circular.
Preferably, the processing stations are provided with 4.
Preferably, the lower end of the mandrel is connected with the flat plate through a socket head cap screw.
Preferably, the materials of the flat plate, the positioning shaft and the mandrel are all 1Cr18Ni9 Ti.
The use method of the welding fixture comprises the following steps:
and 3, conveying the workbench into a vacuum chamber for electron beam welding.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a welding fixture, wherein a plurality of processing positions are arranged on a flat plate, so that the device can realize the clamping of four parts and can finish the electron beam welding of four short-shaft parts at one time; the defect that the electron beam welding equipment can only weld one part on one clamp at a time is effectively overcome; multiple times of vacuumizing caused by repeatedly clamping parts are saved, the working efficiency is improved, and meanwhile, the cost and the equipment occupation time caused by multiple times of vacuumizing are saved; the device is provided with a plurality of detachable positioning devices on the flat plate, and the detachable design mode is convenient for repairing the tool and can ensure the positioning of a plurality of parts; the parts are positioned by adopting inner holes, and the cover plate is compressed tightly, so that the positioning of the parts is ensured and the parts are convenient to install.
The invention also discloses a use method of the welding fixture, the method clamps a plurality of parts on the welding fixture at one time, so that the original single piece welds the circumferential weld of the end surface of the part in a mode of rotating 360 degrees, and a plurality of parts are welded simultaneously in a mode of clockwise circular interpolation after the device is adopted, thereby innovating the welding method.
Drawings
FIG. 1 is a view of the parts to be welded of the present invention;
FIG. 2 is a side view of the clamp of the present invention;
FIG. 3 is a top view of the clamp of the present invention;
wherein: 1-a connecting shaft; 2-plate; 3-positioning the shaft; 4-cover plate; 5-mandrel; 6-cylindrical pin; 7-a compression nut; 8-inner hexagonal socket head cap screw; 9-socket head cap screw; 10-processing station; 11-a positioning hole; 12-a part; 51-a stationary portion; 52-support section.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and encompass, for example, both fixed and removable connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 2 and 3, the apparatus of the present invention comprises: the device comprises a connecting shaft 1, a flat plate 2, a positioning shaft 3, a cover plate 4, a mandrel 5, a cylindrical pin 6, a compression nut 7, an inner hexagonal socket head cap screw 8, an inner hexagonal screw 9 and a processing position 10. In the structure, the connecting shaft 1, the flat plate 2, the positioning shaft 3, the cover plate 4 and the mandrel 5 are all made of 1Cr18Ni9Ti, so that the structure is convenient to use, simple to maintain and low in manufacturing cost.
The flat plate 2 is of a rectangular structure, the lower surface of the middle part of the flat plate is connected with a connecting shaft 1, the connecting shaft 1 is used for connecting the flat plate 2 and an equipment flower disc, the upper surface of the flat plate 2 is provided with a plurality of processing positions 10, preferably, one side of the connecting shaft 1 is provided with two processing positions 10, and the other side of the connecting shaft is provided with two processing positions 10; the axial distance between two adjacent processing stations 10 is required to ensure that the parts do not contact with each other after being installed.
Each installation position 10 is provided with undercut's recess and is locating hole 11, locating hole 11 is circular, locating shaft 3 is installed to locating hole 11 central part, locating shaft 3 is the annular disk form, locating shaft 3 fixes a position on dull and stereotyped 2 through a plurality of cylindric lock 6, make locating shaft 3 can not rotate in locating hole 11, locating shaft 3 is connected with dull and stereotyped 2 through a plurality of hexagon socket head cap screw 8 simultaneously, hexagon socket head cap screw 8 is around the circumference partition setting of locating shaft 3, locating shaft 3 can play the positioning action to the hole and the bottom face of part 12.
Each processing station 10 is provided with a mandrel 5, the mandrel 5 is divided into two coaxial parts, a fixing part 51 and a supporting part 52, the fixing part 51 is in a disc shape, the supporting part 52 is in a cylindrical shape, the lower end of the supporting part 52 is integrally connected with the fixing part 51, the fixing part 51 is inserted into the flat plate 2, the fixing part 51 is connected with the flat plate 2 through a plurality of hexagon socket head cap screws 9, the supporting part 52 is perpendicular to the flat plate 2, and the supporting part 52 penetrates through a through hole in the center of the positioning shaft 3.
When the device is used, each part is arranged on a mounting position 10, a supporting part 52 is positioned at the axial position of the part 12, the upper end of the supporting part 52 is higher than the upper end of the part 12, a cover plate 4 penetrates through the upper end of the supporting part 52 and is inserted into the part 12, the cover plate 4 is arranged on the part 12 in a rack mode, then a compression nut 7 is screwed on the supporting part 52, the compression nut 7 compresses the cover plate 4, and the cover plate 4 compresses the part 12.
In the device, a flat plate 2 and an equipment faceplate are fixedly connected through bolts in a through hole mode, and equipment is arranged on an equipment faceplate workbench and used for fixing the flat plate 2 on the workbench, sequentially clamping parts 12 to a welding fixture, and sequentially installing a cover plate 4 and nuts on the fixture.
1) The device is placed on a workbench on which parts need to be welded, and a flat plate 2 of the device is fixedly connected with the workbench by using screws on the workbench of equipment; the positioning shaft 3 is loaded in the positioning hole 11, and then the mandrel 5 is inserted into the plate 2 through the positioning shaft 3.
2) And (3) sequentially placing the welded short shaft parts 12 on each independent clamp of the flat plate, sequentially placing each part into the positioning hole 11 to ensure the parts to be positioned perfectly, and sequentially placing the cover plate 4, and then sequentially sleeving the compression nut 7 into the mandrel 5 and compressing the short shaft parts 12.
3) After the device is clamped, the workbench is fed into a vacuum chamber to perform electron beam welding on the part in a clockwise circular interpolation mode.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A welding fixture is characterized by comprising a flat plate (2) and a mandrel (5), wherein a plurality of machining positions (10) are arranged on the flat plate (2), each machining position (10) is provided with a positioning hole (11) which is sunken downwards, and a positioning shaft (3) is arranged in each positioning hole (11); the lower end of the mandrel (5) penetrates through the center of the positioning shaft (3), the lower end of the mandrel (5) is inserted into the flat plate (2), and the lower end of the mandrel (5) is connected with the flat plate (2); the mandrel (5), the positioning hole (11) and the positioning shaft (3) are coaxial;
when the welding fixture clamps parts (12), each machining position (10) is provided with one part (12), the mandrel (5) and the parts (12) are coaxial, the upper end face of each part (12) is provided with a cover plate (4), the upper end of the mandrel (5) penetrates through the center of the cover plate (4), and the upper end of the mandrel (5) is connected with a compression nut (7).
2. A welding fixture according to claim 1, characterized in that said flat plate (2) is rectangular and that four corners of said flat plate (2) are provided with chamfers.
3. A welding fixture according to claim 1, characterized in that the lower end surface of the central part of the plate (2) is bolted with a connecting shaft (1).
4. A welding fixture according to claim 1, characterized in that said positioning shaft (3) is positioned on the plate (2) by means of several cylindrical pins (6).
5. A welding fixture according to claim 1, characterized in that said pilot hole (3) is connected to the plate (2) by means of a number of socket cap screws (8).
6. A welding fixture according to claim 1, characterized in that said positioning holes (11) are circular.
7. A welding fixture according to claim 1, characterized in that there are 4 processing stations (10).
8. A welding fixture according to claim 1, characterized in that the lower end of the mandrel (5) is connected to the plate (2) by means of socket head cap screws (9).
9. The welding fixture according to any one of claims 1 to 8, characterized in that the flat plate (2), the positioning shaft (3) and the mandrel (5) are all made of 1Cr18Ni9 Ti.
10. A method of using the welding fixture of claim 1, comprising the steps of:
step 1, arranging a flat plate (2) on a workbench, loading a positioning shaft (3) in a positioning hole (11), and fixing a mandrel (5) in the flat plate (2) through the positioning shaft (3);
step 2, placing a part (12) on the positioning shaft (3), placing a cover plate (4) at the upper end of the part (12), sleeving a compression nut (7) on the mandrel (5), compressing the cover plate (4) by the compression nut (7), and compressing the part (12) by the cover plate (4);
and 3, conveying the workbench into a vacuum chamber for electron beam welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156372.XA CN113664358A (en) | 2021-09-29 | 2021-09-29 | Welding fixture and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111156372.XA CN113664358A (en) | 2021-09-29 | 2021-09-29 | Welding fixture and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113664358A true CN113664358A (en) | 2021-11-19 |
Family
ID=78550441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111156372.XA Pending CN113664358A (en) | 2021-09-29 | 2021-09-29 | Welding fixture and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113664358A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100219165A1 (en) * | 2006-06-23 | 2010-09-02 | Peter Woltering | Method of and device for butt welding without weld filler materials thin metal sheets using clamping pressing devices, at least one pressing element being suitable for applying two or more distinct pressure levels |
| CN202846019U (en) * | 2012-10-24 | 2013-04-03 | 哈尔滨东安发动机（集团）有限公司 | Electron beam welding clamp |
| CN104162756A (en) * | 2014-08-15 | 2014-11-26 | 山东昊安金科新材料股份有限公司 | Multi-shaft welding device |
| CN104607849A (en) * | 2015-02-02 | 2015-05-13 | 山东双轮股份有限公司 | Stainless steel impeller welding technology and tool for electron-beam welding machine |
| US20170209970A1 (en) * | 2016-01-26 | 2017-07-27 | Citic Dicastal Co., Ltd | Machining Fixture |
| CN209036032U (en) * | 2018-10-31 | 2019-06-28 | 常州市新墅机床数控设备有限公司 | A kind of double-station of flange seat accurately indexes positioning Quick Release tooling |
-
2021
- 2021-09-29 CN CN202111156372.XA patent/CN113664358A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100219165A1 (en) * | 2006-06-23 | 2010-09-02 | Peter Woltering | Method of and device for butt welding without weld filler materials thin metal sheets using clamping pressing devices, at least one pressing element being suitable for applying two or more distinct pressure levels |
| CN202846019U (en) * | 2012-10-24 | 2013-04-03 | 哈尔滨东安发动机（集团）有限公司 | Electron beam welding clamp |
| CN104162756A (en) * | 2014-08-15 | 2014-11-26 | 山东昊安金科新材料股份有限公司 | Multi-shaft welding device |
| CN104607849A (en) * | 2015-02-02 | 2015-05-13 | 山东双轮股份有限公司 | Stainless steel impeller welding technology and tool for electron-beam welding machine |
| US20170209970A1 (en) * | 2016-01-26 | 2017-07-27 | Citic Dicastal Co., Ltd | Machining Fixture |
| CN209036032U (en) * | 2018-10-31 | 2019-06-28 | 常州市新墅机床数控设备有限公司 | A kind of double-station of flange seat accurately indexes positioning Quick Release tooling |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211119 |
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| RJ01 | Rejection of invention patent application after publication |