CN202271138U - Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell - Google Patents

Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell Download PDF

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Publication number
CN202271138U
CN202271138U CN2011203460988U CN201120346098U CN202271138U CN 202271138 U CN202271138 U CN 202271138U CN 2011203460988 U CN2011203460988 U CN 2011203460988U CN 201120346098 U CN201120346098 U CN 201120346098U CN 202271138 U CN202271138 U CN 202271138U
Authority
CN
China
Prior art keywords
ring
pressing plate
tapered sleeve
cylindrical shell
brass
Prior art date
Application number
CN2011203460988U
Other languages
Chinese (zh)
Inventor
杨江波
王明坤
晏述亮
Original Assignee
湖北三江航天江北机械工程有限公司
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Application filed by 湖北三江航天江北机械工程有限公司 filed Critical 湖北三江航天江北机械工程有限公司
Priority to CN2011203460988U priority Critical patent/CN202271138U/en
Application granted granted Critical
Publication of CN202271138U publication Critical patent/CN202271138U/en

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Abstract

The utility model relates to a circular seam butt welding fixture for a small-diameter thin-wall cylindrical shell. The circular seam butt welding fixture comprises a pull rod and a conical sleeve which is sheathed at the head of the pull rod. The outer ring of the conical sleeve is a conical surface. A ring copper bush which is formed by a plurality of sub copper bushes in an enclosing way is arranged on the outer ring of the conical sleeve. The ring copper bush is in sliding fit with the conical surface of the outer ring. A ring groove is arranged in the outer circumferential surface of the ring copper bush. A pressing plate is sheathed on the pull rod. Limiting screws which correspond to the sub copper bushes one to one and lean against the sub copper bushes are arranged on the pressing plate. A positioning step is arranged on the outer ring of the pressing plate. An adjusting nut which is used for adjusting the relative position between the pressing plate and the conical sleeve is arranged at the tail of the pull rod. The circular seam butt welding fixture for the small-diameter thin-wall cylindrical shell has the advantages of high positioning accuracy and high assembling and disassembling efficiency.

Description

Minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps
Technical field
The utility model relates to the precision welding connection technology, refers to a kind of minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps that are applicable to the electron beam welding of engine thin-wall case particularly.
Background technology
Electro-beam welding process has advantage and specific function that traditional fusion welding method hardly matches because of having high energy density, as: welding seam deep width ratio is bigger, and welding heat affected zone is little, is out of shape for a short time, and structure property is good, is easy to realize computer control etc.In addition, electron beam welding parameter renegotiation renaturation and good stability, adaptive capacity is strong, and it is wide to weld thickness range, can be used for the welding of precision component, can be used for welding again through heat treated member, also can be used for welding infusibility, heat sensitivity metal and dissimilar metal.In recent years, along with improving constantly of defence engineering actual demand, electron beam welding is connected on machinery manufacturing industry fields such as microtechnic and Aero-Space and obtains promotion and application rapidly.
Adopt electro-beam welding process need guarantee the workpiece high orientation precision; For minor diameter thin wall circular cylindrical shell circular seam welding such as motor bodies; The installation time of welding tooling has reached more than 50% of whole circular seam welding working time; Existing weld jig is because positioning accuracy is low, and installation and disassembling section are wasted time and energy, and can not satisfy positioning accuracy and assembling and the dismantlement work efficient requirement of electron beam welding to frock clamp.
Summary of the invention
The purpose of the utility model is exactly the minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps that will provide a kind of accurate positioning, assembling and dismantlement work efficient high.
For realizing above-mentioned purpose, the minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps that the utility model designed comprise pull bar and are sleeved on the tapered sleeve of rod head that the outer ring of said tapered sleeve is a taper seat.The outer ring of said tapered sleeve is provided with by some sub-brass surrounds the annular brass that forms, and the outer ring conical surface of said annular brass and tapered sleeve is slidingly matched.The periphery of said annular brass is provided with cannelure.Also be set with pressing plate on the said pull bar, said pressing plate is provided with spacing screw rod corresponding one by one with some sub-brass and that connect, and the outer ring of said pressing plate is provided with positioning step.The afterbody of said pull bar is provided with the adjustment nut that is used to regulate pressing plate and tapered sleeve relative position.
Further, come off from the tapered sleeve outer ring for preventing annular brass, the outer ring bigger diameter end of said tapered sleeve is provided with the anticreep flange.
Further, for guaranteeing pressing plate intensity and pull bar being led, be fixed with the reinforcement cushion block on the said pressing plate, said adjustment nut is pressed on to be strengthened on the cushion block.
The advantage of the utility model is: the outer ring of the minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps tapered sleeve that is designed is provided with by some sub-brass surrounds the annular brass that forms, through adjusting nut and the spacing screw rod adjustable collar shape brass axial location with respect to tapered sleeve.With annular brass spreading radially, circle can rise by the thin-wall case to be welded without school shape before the welding; Through the axial location of spacing screw rod adjustable collar shape brass, the maintenance weld seam is positioned at the cannelure place of annular brass, the accurate location of realizing parts of thin-wall casing to be welded.After welding is accomplished, opposite spin adjustment nut, tapered sleeve moves in the other direction, annular brass separates with the inwall of thin-wall case to be welded, take off pressing plate after, can a whole set of anchor clamps conveniently be unloaded assembling and dismantlement work efficient height.
Description of drawings
Fig. 1 is the structural representation of the utility model minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps.
Fig. 2 is the structural representation of annular brass among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
Minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps shown in the figure comprise pull bar 1 and are sleeved on the tapered sleeve 4 of pull bar 1 head, and the outer ring of tapered sleeve 4 is a taper seat, and its outer ring bigger diameter end is provided with anticreep flange 4a.The outer ring of tapered sleeve 4 is provided with by 4 sub-brass 3b surrounds the annular brass 3 that forms, and annular brass 3 is slidingly matched with the outer ring conical surface of tapered sleeve 4.The periphery of annular brass 3 is provided with cannelure 3a.Also be set with pressing plate 2 on the pull bar 1, be fixed with on the pressing plate 2 and strengthen cushion block 5, pressing plate 2 is provided with 4 corresponding one by one with sub-brass 3b and connect spacing screw rods 9.The outer ring of pressing plate 2 is provided with positioning step 2a, and the afterbody of pull bar 1 is provided with the adjustment nut 6 that is used to adjust pressing plate 2 and tapered sleeve 4 relative positions, and adjustment nut 6 is pressed on to be strengthened on the cushion block 5.
During installation, earlier tapered sleeve 4, annular brass 3 and pull bar 1 are installed on the left end of right thin-wall case 8, adjust annular brass 3 positions and make it to be in the pretension state; Left thin-wall case 7 is installed is again made it, strengthen the pressing plate 2 of cushion block 5, the positioning step 2a of pressing plate 2 is cooperated with the interior circle and the end face of left thin-wall case 7 at the left end mounting strap of left thin-wall case 7 with after right thin-wall case 8 docks; Spacing screw rod 9 is installed on pressing plate 2 afterwards, is adjusted spacing screw rod 9 and make it and annular brass 3 butts, keep 4 spacing screw rod 9 position consistency, guarantee that weld seam is in the cannelure 3a place of annular copper lining 3; Adjustment nut 6 is installed on pull bar 1 at last, is made it to press reinforcement cushion block 5.
Before the welding, tighten adjustment nut 6, under the effect of pull bar 1, tapered sleeve 4 is moved to the left, and the taper seat of tapered sleeve 4 is annular brass 3 spreading radially, and circle will rise without the end to be welded of the left thin-wall case 7 of school shape and right thin-wall case 8; After welding is accomplished, unclamp adjustment nut 6, tapered sleeve 4 moves right, and annular brass 3 separates with the inwall of left thin-wall case 7 and right thin-wall case 8, take off pressing plate 2 after, can a whole set of anchor clamps conveniently be unloaded.

Claims (3)

1. minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps comprise pull bar (1) and are sleeved on the tapered sleeve (4) of pull bar (1) head that it is characterized in that: the outer ring of said tapered sleeve (4) is a taper seat; The outer ring of said tapered sleeve (4) is provided with by some sub-brass (3b) surrounds the annular brass (3) that forms; Said annular brass (3) is slidingly matched with the outer ring conical surface of tapered sleeve (4); The periphery of said annular brass (3) is provided with cannelure (3a); Also be set with pressing plate (2) on the said pull bar (1), said pressing plate (2) is provided with spacing screw rod (9) corresponding one by one with some sub-brass (3b) and that connect, and the outer ring of said pressing plate (2) is provided with positioning step (2a); The afterbody of said pull bar (1) is provided with the adjustment nut (6) that is used to regulate pressing plate (2) and tapered sleeve (4) relative position.
2. minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps according to claim 1, it is characterized in that: the outer ring bigger diameter end of said tapered sleeve (4) is provided with anticreep flange (4a).
3. minor diameter thin wall circular cylindrical shell circular seam welding anchor clamps according to claim 1 and 2 is characterized in that: be fixed with on the said pressing plate (2) and strengthen cushion block (5), said adjustment nut (6) is pressed on to be strengthened on the cushion block (5).
CN2011203460988U 2011-09-15 2011-09-15 Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell CN202271138U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203460988U CN202271138U (en) 2011-09-15 2011-09-15 Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203460988U CN202271138U (en) 2011-09-15 2011-09-15 Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell

Publications (1)

Publication Number Publication Date
CN202271138U true CN202271138U (en) 2012-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203460988U CN202271138U (en) 2011-09-15 2011-09-15 Circular seam butt welding fixture for small-diameter thin-wall cylindrical shell

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CN (1) CN202271138U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104475934A (en) * 2014-11-20 2015-04-01 湖北三江航天江北机械工程有限公司 Welding process for ensuring smooth transition and molding of ellipsoidal circular seam and auxiliary welding clamp thereof
CN104607798A (en) * 2015-01-15 2015-05-13 辽宁工业大学 Welding tool and method of medium carbon steel hollow step bar
CN104874925A (en) * 2015-06-05 2015-09-02 南昌航空大学 Flexible welding fixture device for ultrathin-walled cylinders and utilization method of flexible welding fixture device
CN105666010A (en) * 2016-04-06 2016-06-15 中国南方航空工业(集团)有限公司 Welding fixture for welding aero engine jet oil passage closure
CN106392391A (en) * 2016-11-09 2017-02-15 江苏金鑫电器有限公司 Automatic welding device of aluminum alloy circular seam
CN106736155A (en) * 2016-12-23 2017-05-31 贵州黎阳航空动力有限公司 A kind of small-diameter, thin-walled cylindrical part weld seam support fixture
CN108480672A (en) * 2018-06-06 2018-09-04 福州大学 For the special fixture and its working method of slim cylindrical element turnery processing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104148851B (en) * 2014-07-24 2016-03-02 贵州黎阳航空动力有限公司 A kind of seamless tensioner weld jig for welding thin-wall barrel girth joint
CN104475934A (en) * 2014-11-20 2015-04-01 湖北三江航天江北机械工程有限公司 Welding process for ensuring smooth transition and molding of ellipsoidal circular seam and auxiliary welding clamp thereof
CN104607798A (en) * 2015-01-15 2015-05-13 辽宁工业大学 Welding tool and method of medium carbon steel hollow step bar
CN104607798B (en) * 2015-01-15 2016-03-23 辽宁工业大学 The welding tooling of the hollow stepped stem of a kind of medium carbon steel and method
CN104874925A (en) * 2015-06-05 2015-09-02 南昌航空大学 Flexible welding fixture device for ultrathin-walled cylinders and utilization method of flexible welding fixture device
CN104874925B (en) * 2015-06-05 2016-05-25 南昌航空大学 A kind of ultra-thin-wall cylinder is with weldering flexible welding clamp device and using method thereof
CN105666010A (en) * 2016-04-06 2016-06-15 中国南方航空工业(集团)有限公司 Welding fixture for welding aero engine jet oil passage closure
CN106392391A (en) * 2016-11-09 2017-02-15 江苏金鑫电器有限公司 Automatic welding device of aluminum alloy circular seam
CN106736155A (en) * 2016-12-23 2017-05-31 贵州黎阳航空动力有限公司 A kind of small-diameter, thin-walled cylindrical part weld seam support fixture
CN108480672A (en) * 2018-06-06 2018-09-04 福州大学 For the special fixture and its working method of slim cylindrical element turnery processing

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120613

Termination date: 20140915

EXPY Termination of patent right or utility model