CN201702533U - Clearance-adjustable girth welding jig - Google Patents
Clearance-adjustable girth welding jig Download PDFInfo
- Publication number
- CN201702533U CN201702533U CN2010201968996U CN201020196899U CN201702533U CN 201702533 U CN201702533 U CN 201702533U CN 2010201968996 U CN2010201968996 U CN 2010201968996U CN 201020196899 U CN201020196899 U CN 201020196899U CN 201702533 U CN201702533 U CN 201702533U
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Abstract
The utility model relates to a welding jig, in particular to a clearance-adjustable girth welding jig for welding a special type alloy flange and a thin-walled cylinder, which comprises a base, a plurality of fan-shaped tensioning blocks which are arranged on the base and form an inner circle of a welded cylindrical workpiece, an anti-tilting pressing plate for pressing a flange on the base, a cone-shaped expanding block which is arranged in the center of the base and leans against the plurality of fan-shaped tensioning blocks, and an adjusting screw rod for adjusting the cone-shaped expanding block to move along axial line. The clearance-adjustable girth welding jig is characterized in that: a base plate is arranged below the plurality of fan-shaped tensioning blocks; the plurality of fan-shaped tensioning blocks are arranged on the base plate in a sliding manner; a plurality of adjusting screws for adjusting the distance between the base and the base plate are arranged between the base plate and the base; the welding clearance is conveniently adjusted by the adjusting screws, so as to meet the requirement of vacuum electron beam or laser welding. The welding jig is deformed slightly after being heated, thereby improving the welding quality.
Description
Technical field
The utility model relates to a kind of weld jig, particularly a kind of girth welding anchor clamps that are used to weld the adjustable clearance of special alloy flange and thin-wall barrel.
Background technology
Some special alloys adopt extraordinary welding methods such as electron-bombardment welding or gas shield Laser Welding to weld usually as titanium alloy, rhenium alloys, comprising the circular seam welding of the circular cylinder body and the ring flange of above-mentioned metal.Traditional circular seam welding anchor clamps as shown in Figure 1 and Figure 2, be on pedestal 1, the flange outside is provided with the anti-pressing plate 2 that sticks up that is used for fixing by weldering flange 3 along circumference, inwall at cylindrical shell 4 is provided with tightening piece 5, described tightening piece 5 is a plurality of secter pats that formed by the cutting of branches such as center by the oblate post that the center has a conical bore, and the centre of described a plurality of fan-shaped tightening pieces is provided with the taper of regulating axial locations by screw mandrel 6 piece 7 that rises.In structure shown in Figure 1, regulate the taper piece 7 that rises downwards by screw mandrel, can realize a plurality of fan-shaped tightening pieces turgor pressure welded piece internally, the whole welding line back side and piece evenly are adjacent to.Yet vacuum electron beam welding or laser weld not only require back side piece and whole piece even weld to be adjacent to, to reach the purpose of heat conduction unanimity, but also the weld seam fit-up gap that requires weldment is minimum and centering requires very strict, accurate to guarantee joint location, and existing girth welding anchor clamps lack the adjustment in butt welded seam gap.For keeping strict gap requirement, in assembling process, earlier anchor clamps are suitably tightened, use wooden mallet bridge play orchid or cylinder end face then, and check weld gap with clearance gauge, again that anchor clamps are fastening after qualified.This method is not only required great effort, is taken a lot of work, and easily welded piece is beaten distortion, causes damage.Therefore traditional annular solder anchor clamps can not satisfy the instructions for use of electron beam welding or Laser Welding, and the weld jig that exploitation energy butt welded seam gap is adjusted is necessary.
The utility model content
Technical problem to be solved in the utility model is, at the above-mentioned deficiency of prior art, and the girth welding anchor clamps that a kind of adjustable clearance is provided are to guarantee the minimum centering strictness in whole welding line gap.
The girth welding anchor clamps of adjustable clearance provided by the utility model are realized by following technical scheme.
A kind of girth welding anchor clamps of adjustable clearance, comprise pedestal, be located at a plurality of on the pedestal and constitute by the fan-shaped tightening piece of circle in the weldering cylindrical workpieces and be used for that flange overlayed that anti-on pedestal sticks up pressing plate, the taper of being located at the described a plurality of fan-shaped tightening pieces of roof pressure at pedestal center rises by piece and regulate the taper adjusting screw mandrel that piece moves along axis that rises, be provided with a substrate below wherein said a plurality of fan-shaped tensioning pieces, described a plurality of fan-shaped tightening piece is slidedly arranged on the described substrate, is provided with the adjustment screw of a plurality of adjusting pedestals and substrate distance between described substrate and the described pedestal.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents.
The girth welding anchor clamps of described adjustable clearance, wherein said pedestal is provided with screw, described substrate is provided with through hole, and described adjustment screw is passed the through hole of described substrate and is screwed in the screw of described pedestal the upper surface of the described substrate through-hole of head of screw contact of described adjustment screw.
The girth welding anchor clamps of described adjustable clearance, wherein said adjustment screw is made of the cylindrical section of the head of screw of coaxial setting, attachment screw head and the thread segment that connects cylindrical section, the diameter of described cylindrical section is greater than the diameter of described thread segment, form step surface, described pedestal is provided with screw, described substrate is provided with through hole, the thread segment of described adjustment screw passes the through hole of described substrate and is screwed in the screw of described pedestal the upper surface of the cylindrical section of described adjustment screw and the described substrate through-hole of step surface contact between the thread segment.
The girth welding anchor clamps of described adjustable clearance, wherein said a plurality of fan-shaped tightening pieces and described taper rise and are provided with strut between the piece, and described substrate is provided with strut socket, and described strut socket is provided with slide opening, and described strut is slidedly arranged in the slide opening of described strut socket.
The girth welding anchor clamps of described adjustable clearance, wherein said a plurality of fan-shaped tightening piece is made up of quantity identical fan-shaped active tightening piece and fan-shaped driven tightening piece, described fan-shaped active tightening piece and described fan-shaped driven tightening piece are arranged alternately, the two sides of described fan-shaped active tightening piece and fan-shaped driven tightening piece are the inclined-plane, inclined-plane in the described driven tightening piece of the inclined-plane roof pressure both sides of the both sides of fan-shaped active tightening piece described in the tensioner process, and described strut only connects described fan-shaped active tightening piece.
The girth welding anchor clamps of described adjustable clearance are provided with extension spring between wherein said fan-shaped active tightening piece and the described strut socket; Also be provided with extension spring between described fan-shaped driven tightening piece and the described substrate, specifically be, stand on described substrate and be provided with arm-tie, the other end that a described end connects the extension spring of fan-shaped driven tightening piece then is fixed on the described arm-tie.
The girth welding anchor clamps of described adjustable clearance; wherein said fan-shaped active tightening piece and described fan-shaped driven tightening piece are provided with the back of weld gas shield device, are provided with to be provided with between air inlet pipe, described plenum chamber and the described gas shield groove that is communicated with described plenum chamber along gas shield groove, the side of bead direction comprising plenum chamber, with respect to the surface of position while welding to be provided with a plurality of apertures.
The girth welding anchor clamps of described adjustable clearance, the adjustment screw between wherein said substrate and the described pedestal is at least four, and to be distributed in the anchor clamps center line be on the circumference in the center of circle.
Advantage of the present utility model is:
1, owing to below described a plurality of fan-shaped tensioning pieces, is provided with a substrate, described a plurality of fan-shaped tightening piece is slidedly arranged on the described substrate, be provided with the adjustment screw of a plurality of adjusting pedestals and substrate distance between described substrate and the described pedestal, can regulate weld gap easily to satisfy the requirement of vacuum electron beam or Laser Welding by adjustment screw, the back distortion of being heated is little, improved welding quality, avoid adopting wooden mallet knock with problems.
2, on fan-shaped active tightening piece and described fan-shaped driven tightening piece, be provided with by plenum chamber, the gas shield groove, the back of weld protective device that air inlet pipe constituted is effective to the girth welding under the gas shield.
3, the girth welding anchor clamps of the adjustable clearance of this practical property not only can be used for vacuum electron beam and Laser Welding, and also can be used for electric arc is the various arc welding methods of thermal source, has extremely strong versatility.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the structural representation of existing girth welding anchor clamps.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of the girth welding anchor clamps of the utility model adjustable clearance.Only draw half among the figure, and second half is a symmetric figure, the Therefore, omited.
Fig. 4 is the vertical view of Fig. 3.
The specific embodiment
As Fig. 3, shown in Figure 4, the girth welding anchor clamps of a kind of adjustable clearance provided by the utility model, be used for the butt weld of welded flange 10 and cylindrical workpiece 20, described anchor clamps comprise pedestal 31, being located at a plurality of on the pedestal 31 constitutes by the fan-shaped tightening piece 32 of circle in the weldering cylindrical workpieces 20 and is used for flange 10 is overlayed the anti-pressing plate 34 that sticks up on pedestal 31, rise piece 35 and regulate the taper adjusting screw mandrel 36 that piece 35 moves along axis that rises of the taper of being located at the described a plurality of fan-shaped tightening pieces 32 of roof pressure at pedestal 31 centers, be provided with a substrate 37 below wherein said a plurality of fan-shaped tensioning pieces 32, described a plurality of fan-shaped tightening piece 32 is slidedly arranged on the described substrate 37, is provided with the adjustment screw 38 of a plurality of adjusting pedestals 31 and substrate 37 distances between described substrate 37 and the described pedestal 31.
During use, earlier with the roof pressure of regulating screw mandrel 36 accent loose taper rising 35 pairs of fan-shaped tightening pieces 32 of piece, then flange 10 is placed on the fan-shaped tightening piece 32 formed circle outsides, the flange bottom surface is attached on the pedestal 31, again cylindrical workpiece 20 is enclosed within the fan-shaped tightening piece 32 formed circle outsides, the end face of cylindrical workpiece 20 and the welding end surface of flange are offseted, with preventing that sticking up pressing plate 34 overlays flange on described pedestal 31, screw mandrel 36 is regulated in rotation, make the taper piece 35 that rises move down (position shown in Figure 3), the rise conical surface of piece 35 of taper makes the inwall of being close to cylindrical workpiece 20 and flange 10 with described a plurality of fan-shaped tightening pieces 32 outer rising, the welding end surface of regulating end face that pedestals 31 and distance between the substrate 37 make cylindrical work pieces 20 and flange by adjustment screw 38 reaches the minimum purpose in assurance weld seam fit-up gap to tightly then.
Described pedestal 31 is provided with screw 39, described substrate 37 is provided with through hole 40, described adjustment screw 38 is passed the through hole 40 of described substrate 37 and is screwed in the screw 39 of described pedestal 31 upper surface of the through hole 40 of the described substrate 37 of head of screw 381 contacts of described adjustment screw 38.
For ease of regulating adjustment screw, described adjustment screw 38 is made of the cylindrical section 382 of the head of screw 381 of coaxial setting, attachment screw head 381 and the thread segment 383 that connects cylindrical section 382, the diameter of described cylindrical section 382 is greater than the diameter of described thread segment 383, form step surface 384, the thread segment 383 of described adjustment screw 38 passes the through hole 40 of described substrate and is screwed in the screw 39 of described pedestal the upper surface of the cylindrical section of described adjustment screw 38 and the described substrate through-hole 40 of 384 contacts of the step surface between the thread segment.Can regulate distance between pedestal 31 and the substrate 37 by rotation adjustment screw 38, the welding end surface that makes the end face of cylindrical work pieces 20 and flange reaches the minimum purpose in assurance weld seam fit-up gap to tightly.
For alleviating clamp weight, the rise weight of piece 35 of particularly fan-shaped tightening piece 32 and taper, described a plurality of fan-shaped tightening pieces 32 and described taper are risen and are provided with strut 41 between the piece 35, described substrate 37 is provided with strut socket 42, described strut socket 42 is provided with slide opening 43, and described strut 41 is slidedly arranged in the slide opening 43 of described strut socket.Moving up and down the taper piece 35 that rises will make fan-shaped tightening piece 32 radially move by the strut in the described slide opening 43 that is slidedly arranged on strut socket, realize internally the outside tensioner to cylindrical work pieces.
Described a plurality of fan-shaped tightening piece 32 is made up of quantity identical fan-shaped active tightening piece 321 and fan-shaped driven tightening piece 322, described fan-shaped active tightening piece 321 is arranged alternately with described fan-shaped driven tightening piece 322, described fan-shaped active tightening piece 321 is the inclined-plane that intersects with described fan-shaped center line with the two sides of fan-shaped driven tightening piece 322, in the tensioner process, the inclined-plane of the described fan-shaped driven tightening piece of inclined-plane roof pressure 322 both sides of described fan-shaped active tightening piece 321 both sides and make fan-shaped driven tightening piece 322 outer rising, and described strut only connects described fan-shaped active tightening piece 321.
Be provided with extension spring 44 between described fan-shaped active tightening piece 321 and the described strut socket 42; Also be provided with extension spring 44 between described fan-shaped driven tightening piece 322 and the described substrate 37, specifically be, stand on described substrate 37 and be provided with arm-tie 45, the other end that a described end connects the extension spring 44 of fan-shaped driven tightening piece 322 then is fixed on the described arm-tie 45.When unloading anchor clamps, the roof pressure of screw mandrel 36 accent loose taper rising 35 pairs of fan-shaped tightening pieces 32 of piece is regulated in rotation, and described fan-shaped tightening piece (comprising fan-shaped active tightening piece and fan-shaped driven tightening piece) is removed the pressing to workpiece under the effect of extension spring 44.
Described fan-shaped active tightening piece 321 is provided with the back of weld gas shield device with described fan-shaped driven tightening piece 322; be provided with along gas shield groove 324, the side of bead direction comprising plenum chamber 323, with respect to the surface of position while welding and be provided with the air inlet pipe 325 that is communicated with described plenum chamber 323, be provided with a plurality of apertures 326 between described plenum chamber 323 and the described gas shield groove 324.
Claims (8)
1. the girth welding anchor clamps of adjustable clearance, comprise pedestal, be located at a plurality of on the pedestal and constitute by the fan-shaped tightening piece of circle in the weldering cylindrical workpieces and be used for that flange overlayed that anti-on pedestal sticks up pressing plate, the taper of being located at the described a plurality of fan-shaped tightening pieces of roof pressure at pedestal center rises by piece and regulate the taper adjusting screw mandrel that piece moves along axis that rises, it is characterized in that described a plurality of fan-shaped tensioning pieces below be provided with a substrate, described a plurality of fan-shaped tightening piece is slidedly arranged on the described substrate, is provided with the adjustment screw of a plurality of adjusting pedestals and substrate distance between described substrate and the described pedestal.
2. the girth welding anchor clamps of adjustable clearance according to claim 1, it is characterized in that described pedestal is provided with screw, described substrate is provided with through hole, described adjustment screw is passed the through hole of described substrate and is screwed in the screw of described pedestal the upper surface of the described substrate through-hole of head of screw contact of described adjustment screw.
3. the girth welding anchor clamps of adjustable clearance according to claim 1, it is characterized in that described adjustment screw is the head of screw by coaxial setting, the thread segment of the cylindrical section of attachment screw head and connection cylindrical section constitutes, the diameter of described cylindrical section is greater than the diameter of described thread segment, form step surface, described pedestal is provided with screw, described substrate is provided with through hole, the thread segment of described adjustment screw passes the through hole of described substrate and is screwed in the screw of described pedestal the upper surface of the cylindrical section of described adjustment screw and the described substrate through-hole of step surface contact between the thread segment.
4. the girth welding anchor clamps of adjustable clearance according to claim 1, it is characterized in that described a plurality of fan-shaped tightening piece and described taper are risen is provided with strut between the piece, described substrate is provided with strut socket, and described strut socket is provided with slide opening, and described strut is slidedly arranged in the slide opening of described strut socket.
5. the girth welding anchor clamps of adjustable clearance according to claim 4, it is characterized in that described a plurality of fan-shaped tightening piece is made up of quantity identical fan-shaped active tightening piece and fan-shaped driven tightening piece, described fan-shaped active tightening piece and described fan-shaped driven tightening piece are arranged alternately, the two sides of described fan-shaped active tightening piece and fan-shaped driven tightening piece are the inclined-plane, inclined-plane in the described driven tightening piece of the inclined-plane roof pressure both sides of the both sides of fan-shaped active tightening piece described in the tensioner process, and described strut only connects described fan-shaped active tightening piece.
6. the girth welding anchor clamps of adjustable clearance according to claim 5 is characterized in that being provided with extension spring between described fan-shaped active tightening piece and the described strut socket; Also be provided with extension spring between described fan-shaped driven tightening piece and the described substrate, specifically be, stand on described substrate and be provided with arm-tie, the other end that a described end connects the extension spring of fan-shaped driven tightening piece then is fixed on the described arm-tie.
7. the girth welding anchor clamps of adjustable clearance according to claim 5; it is characterized in that described fan-shaped active tightening piece and described fan-shaped driven tightening piece are provided with the back of weld gas shield device, be provided with to be provided with between air inlet pipe, described plenum chamber and the described gas shield groove that is communicated with described plenum chamber comprising plenum chamber, with respect to the surface of position while welding and be provided with a plurality of apertures along gas shield groove, the side of bead direction.
8. the girth welding anchor clamps of adjustable clearance according to claim 1 is characterized in that the adjustment screw between described substrate and the described pedestal is at least four, and to be distributed in the anchor clamps center line be on the circumference in the center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201968996U CN201702533U (en) | 2010-05-20 | 2010-05-20 | Clearance-adjustable girth welding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201968996U CN201702533U (en) | 2010-05-20 | 2010-05-20 | Clearance-adjustable girth welding jig |
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| Publication Number | Publication Date |
|---|---|
| CN201702533U true CN201702533U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201968996U Expired - Lifetime CN201702533U (en) | 2010-05-20 | 2010-05-20 | Clearance-adjustable girth welding jig |
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| CN (1) | CN201702533U (en) |
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| CN102350604A (en) * | 2011-08-24 | 2012-02-15 | 青岛德力源五金制品有限公司 | Welding fixture and method for expandable mandrel |
| CN102371462A (en) * | 2011-01-30 | 2012-03-14 | 深圳市大富科技股份有限公司 | High energy beam welding jig |
| CN102990239A (en) * | 2012-12-26 | 2013-03-27 | 南通三九焊接机器制造有限公司 | Valve inner girth welding method |
| CN103008949A (en) * | 2012-12-13 | 2013-04-03 | 天津卡达克汽车高新技术公司 | Compound gap self-adjusting flange ring welding jig |
| CN103143870A (en) * | 2013-03-21 | 2013-06-12 | 江苏勇龙电气有限公司 | External support welding tool of shielding cylinder connecting nozzle and use method of external support welding tool |
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| CN103230995A (en) * | 2013-05-31 | 2013-08-07 | 句容泰博尔机械制造有限公司 | Circular orbit forming mold |
| CN104148851A (en) * | 2014-07-24 | 2014-11-19 | 贵州黎阳航空动力有限公司 | Seamless tensioning welding jig used for welding circumferential welds of thin-wall barrel |
| CN104439872A (en) * | 2013-09-25 | 2015-03-25 | 哈尔滨电气动力装备有限公司 | Tool device for machining and assembling large cylindrical workpiece |
| CN104551374A (en) * | 2014-12-31 | 2015-04-29 | 乐清市长城工具有限公司 | Improved structure of welding mechanism for automatic welding machine |
| CN105382466A (en) * | 2015-12-02 | 2016-03-09 | 芜湖成德龙过滤设备有限公司 | Fixing device used for rotary welding machine |
| CN105773035A (en) * | 2016-04-26 | 2016-07-20 | 德尔玛（珠海）焊接自动化技术有限公司 | Flange clamping fixture |
| CN107088714A (en) * | 2016-06-28 | 2017-08-25 | 中航湖南通用航空发动机有限公司 | Thin-wall corrugated tube welding method and weld jig |
| CN108044347A (en) * | 2017-12-05 | 2018-05-18 | 中国航发动力股份有限公司 | Cavity gap bearing calibration and instrument in annular flame tube head assembly splash pan narrow slit |
| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109500530A (en) * | 2018-11-28 | 2019-03-22 | 四川航天长征装备制造有限公司 | A kind of inner support clamp for girth welding |
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2010
- 2010-05-20 CN CN2010201968996U patent/CN201702533U/en not_active Expired - Lifetime
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| CN102371462B (en) * | 2011-01-30 | 2015-02-11 | 深圳市大富科技股份有限公司 | High energy beam welding jig |
| CN102371462A (en) * | 2011-01-30 | 2012-03-14 | 深圳市大富科技股份有限公司 | High energy beam welding jig |
| CN102350604A (en) * | 2011-08-24 | 2012-02-15 | 青岛德力源五金制品有限公司 | Welding fixture and method for expandable mandrel |
| CN103008949B (en) * | 2012-12-13 | 2015-03-18 | 天津卡达克汽车高新技术公司 | Compound gap self-adjusting flange ring welding jig |
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| CN102990239A (en) * | 2012-12-26 | 2013-03-27 | 南通三九焊接机器制造有限公司 | Valve inner girth welding method |
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| CN108044347A (en) * | 2017-12-05 | 2018-05-18 | 中国航发动力股份有限公司 | Cavity gap bearing calibration and instrument in annular flame tube head assembly splash pan narrow slit |
| CN108044347B (en) * | 2017-12-05 | 2019-09-10 | 中国航发动力股份有限公司 | Cavity gap bearing calibration and tool in annular flame tube head assembly splash pan narrow slit |
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| CN109352119A (en) * | 2018-11-23 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to improve certain clamp structure for obturaging ring assemblies class part soldering clamping precision |
| CN109500530A (en) * | 2018-11-28 | 2019-03-22 | 四川航天长征装备制造有限公司 | A kind of inner support clamp for girth welding |
| CN110977293A (en) * | 2019-12-07 | 2020-04-10 | 山西省工业设备安装集团有限公司 | Automatic butt joint fixing device for flange and pipeline |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 618400 Shifang City, Sichuan Province Economic Development Zone (Ling Jie Park) Patentee after: SICHUAN MINGRI AEROSPACE INDUSTRY CO., LTD. Address before: 618400 Shifang City, Sichuan Province Economic Development Zone (Ling Jie Park) Patentee before: Shifang Mingri Aerospace Industry Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
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| CX01 | Expiry of patent term |