CN109940335A - Circular Thin pipe butt welding tolerance limitless defense right welding fixture - Google Patents

Circular Thin pipe butt welding tolerance limitless defense right welding fixture Download PDF

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Publication number
CN109940335A
CN109940335A CN201910338455.7A CN201910338455A CN109940335A CN 109940335 A CN109940335 A CN 109940335A CN 201910338455 A CN201910338455 A CN 201910338455A CN 109940335 A CN109940335 A CN 109940335A
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China
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block
segmentation
circular thin
thin pipe
mounting disc
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CN201910338455.7A
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CN109940335B (en
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陈进雄
陈昆
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Kunshan He Song Welding And Cutting Device Co Ltd
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Kunshan He Song Welding And Cutting Device Co Ltd
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Abstract

The invention discloses a kind of Circular Thin pipe butt welding tolerance limitless defense right welding fixtures, including transmission shaft, retainer, mounting disc, fixed disk, several segmentation blocks and several drive rods, it is fixed together between fixed disk and mounting disc by spaced several connecting rods, arcwall face is formed on the outside of segmentation block, several segmentation blocks are set in same plane, the end to end support annulus surrounded for stretching Circular Thin pipe of arcwall face on the outside of several segmentation blocks, segmentation block, which radially slides, to be set in mounting disc;Transmission shaft one end is movably installed in the center of fixed disk by axle sleeve, and the evacuation through-hole of the other end self installation disk center position of transmission shaft passes through to be fixedly connected with external impetus mechanism afterwards;Transmission cover for seat is fixed in the middle part of transmission shaft, and drive rod one end is articulated on retainer, and the drive rod other end is articulated with the inside of segmentation block.Production efficiency can be greatly improved in the present invention, reduce labor intensity of workers, it is beautiful to make formed product, and improve the qualification rate of product.

Description

Circular Thin pipe butt welding tolerance limitless defense right welding fixture
Technical field
The present invention relates to one kind, are specifically related to a kind of Circular Thin pipe butt welding tolerance limitless defense right welding fixture.
Background technique
Circular Thin pipe (such as ventilation duct) is widely used in hotel, market, weaving, chemical fibre, petrochemical industry, mechanical system Make, instrument, electronics, medicine, tobacco, food, medical treatment, storage, the air-supply of engineerings such as office building and subway, people's air defense, basement, Air draft, smoke discharging pipe etc..
Currently, the production process of Circular Thin pipe is: 1) laser blanking (or plate shearing machine cut out), 2) edge rolling, 3) straight weld It connects.All there are tolerance issues in this 3 procedure, because are as follows: 1, laser or shear, it is impossible to lower two blocks of identical materials out, 2, During edge rolling, the ductility of 2 pieces of thin plates can not be just the same, and 3, existing thermal deformation can make tolerance during straight seam welding Further increase;Sometimes it may also be accumulated tolerance, cause the round tube of same diameter that can not dock circumferential weld.The side that the prior art solves Method is: splices and beaten by hand by artificial, make two Circular Thin pipe alignment, and need experienced master craftsman, It could complete work.This results in Circular Thin pipe butt welding inefficiency, and welding process noise pollution is serious, and appearance of weld Unsightly (later period needs to be passivated cream pickling, and a large amount of polishing grinding work), product quality is lower, and qualification rate compared with It is low.
Summary of the invention
In order to solve the above-mentioned technical problem, the present invention proposes that a kind of Circular Thin pipe butt welding tolerance limitless defense right welding is controlled Tool carries out the butt welding of Circular Thin pipe using welding fixture of the present invention, production efficiency can be greatly improved, reduces worker's labor It is beautiful to make formed product, and improves the qualification rate of product for fatigue resistance.
The technical scheme of the present invention is realized as follows:
A kind of Circular Thin pipe butt welding tolerance limitless defense right welding fixture, including it is transmission shaft, retainer, mounting disc, solid Price fixing, several segmentation blocks and with several segmentation blocks several drive rods correspondingly, the fixed disk and the mounting disc Between be fixed together by spaced several connecting rods, be formed with arcwall face on the outside of the segmentation block, it is several described Divide block to be set in same plane, the arcwall face on the outside of several segmentation blocks is end to end to be surrounded for stretching Circular Thin pipe Support annulus, the segmentation block radially slide be set to the mounting disc on;Pacified by axle sleeve activity described transmission shaft one end The evacuation through-hole of center loaded on the fixed disk, the other end from the mounting disc center of the transmission shaft passes through It is fixedly connected afterwards with external impetus mechanism;The transmission cover for seat is fixed in the middle part of the transmission shaft, and described drive rod one end is hinged In on the retainer, the drive rod other end is articulated with the inside of the segmentation block.
Further, the segmentation block includes arc block and T-shaped block, and the outside of the arc block forms the arcwall face, It is detachably fixed and connect on the inside of the lateral part of the T-shaped block and the arc block.
Further, arc-shaped back gas shielded slot, the back gas shielded slot are formed on the arcwall face of the arc block Slot bottom be formed with the air inlet/outlet of connective protection gas source, be embedded with linking between two arcwall faces of two neighboring arc block Block, the connecting block are fixed in the arc block by fastener, and it is adjacent that connection is formed on the outside of the connecting block The extension slot of two back gas shielded slots on two arcwall faces.
Further, the segmentation block, which radially slides the structure being set in the mounting disc, is: pacifying in the mounting disc Equipped with the sliding rail being disposed radially, extension board is installed in the T-block, sliding block, the sliding block are installed on the extension board It is slidably connected with the sliding rail.
Further, the drive rod structure hinged with the retainer is: one end of the drive rod is formed with One U-shaped slot, is formed with first bearing on the retainer, and the first bearing is installed on described first by shaft and U-shaped inserts In slot;The drive rod structure hinged with the segmentation block is: it is U-shaped that the vertical section end of the T-shaped block is formed with second Slot, the other end of the drive rod are formed with second bearing, and the second bearing is installed on described second by shaft and U-shaped inserts In slot.
It is controlled the beneficial effects of the present invention are: the present invention provides a kind of welding of Circular Thin pipe butt welding tolerance limitless defense right Tool, is mainly made of transmission shaft, retainer, mounting disc, fixed disk, several segmentation blocks and several drive rods, and mounting disc is for solid It is scheduled on being used to support on the support base of Circular Thin pipe for welding equipment, so that entire welding fixture is in vacant state, convenient for circle Shape thin-walled pipe sleeve is on the support annulus surrounded by several segmentation blocks.Transmission shaft one end is movably installed in fixed disk by axle sleeve On, the other end of transmission shaft is fixedly connected with external impetus mechanism, such as driving cylinder, is driven in this way, being driven by driving cylinder When axis slides axially, transmission shaft can fix disk relatively and mounting disc slides axially, and then transmission shaft can drive and be fixed in Retainer thereon axially movable, and retainer and segmentation block between by drive rod it is hinged, therefore, retainer can Segmentation block is driven to move radially, to play the role of strutting or retracting segmentation block.In retracted mode, each segmentation block is along diameter To retraction, it is separated from Circular Thin pipe, convenient for removing the product after welding;In softened state, each segmentation block struts outward, So as to support the Circular Thin pipe being tightly placed on support annulus, keeps Circular Thin pipe infinite tendency round, divide tolerance infinitely It cuts.In order to guarantee that each segmentation block is radially slidably mounted in mounting disc by the stationarity of each segmentation block movement, the present invention, Make each segmentation block can only radially sliding along mounting disc guarantee so as to avoid segmentation block run-off the straight or swing in stretching The direction force that struts when Circular Thin pipe where each segmentation block is uniform, and then reaches reduction tolerance, makes two circles The thin-wall tube purpose that almost zero allowance is docked.
Detailed description of the invention
Fig. 1 is the perspective view at visual angle at the top of Circular Thin pipe butt welding tolerance limitless defense right welding fixture of the present invention;
Fig. 2 is the perspective view of Circular Thin pipe butt welding tolerance limitless defense right welding fixture bottom views of the present invention;
Fig. 3 is that Circular Thin pipe butt welding tolerance limitless defense right welding fixture of the present invention removes bottom views after mounting disc Perspective view.
Specific embodiment
In order to be more clearly understood that technology contents of the invention, spy lifts following embodiment and is described in detail, and purpose is only It is to be best understood from the protection scope that the contents of the present invention are not intended to limit the present invention.
Fig. 1 is the perspective view at visual angle at the top of Circular Thin pipe butt welding tolerance limitless defense right welding fixture of the present invention;Fig. 2 is The perspective view of Circular Thin pipe butt welding tolerance limitless defense right welding fixture bottom views of the present invention;Fig. 3 is that the present invention is round thin Wall pipe butt welding tolerance limitless defense right welding fixture removes the perspective view of bottom views after mounting disc.Referring to figure 1, figure 2 and figure 3, A kind of Circular Thin pipe butt welding tolerance limitless defense right welding fixture, including transmission shaft 1, retainer 2, mounting disc 3, fixed disk 4, Several segmentation blocks 5 and with several segmentation blocks several drive rods 6 correspondingly, between the fixed disk and the mounting disc It is fixed together by spaced several connecting rods 7, arcwall face 510 is formed on the outside of the segmentation block, it is several described Divide block to be set in same plane, the arcwall face on the outside of several segmentation blocks is end to end to be surrounded for stretching Circular Thin pipe Support annulus, the segmentation block radially slide be set to the mounting disc on;Pacified by axle sleeve activity described transmission shaft one end The evacuation through-hole of center loaded on the fixed disk, the other end from the mounting disc center of the transmission shaft passes through It is fixedly connected afterwards with external impetus mechanism;The transmission cover for seat is fixed in the middle part of the transmission shaft, and described drive rod one end is hinged In on the retainer, the drive rod other end is articulated with the inside of the segmentation block.
In above structure, mounting disc is used to be fixed on the support base for being used to support Circular Thin pipe of welding equipment, with Make entire welding fixture in vacant state, convenient for Circular Thin pipe sleeve on the support annulus surrounded by several segmentation blocks.Transmission Axis one end is movably installed in fixed disk by axle sleeve, and the other end of transmission shaft is fixedly connected with external impetus mechanism, for example is driven It takes offence cylinder, in this way, transmission shaft can fix disk and mounting disc along axis relatively when being slid axially by driving cylinder driving transmission shaft To sliding, and then transmission shaft can drive and be fixed in retainer thereon axially movable, and pass through between retainer and segmentation block Drive rod is hinged, and therefore, retainer can drive segmentation block to move radially, and struts or retract segmentation block to play Effect.In retracted mode, each segmentation block radially bounces back, and is separated from Circular Thin pipe, convenient for removing the product after welding;? When softened state, each segmentation block struts outward, so as to support the Circular Thin pipe being tightly placed on support annulus, makes round thin Wall pipe infinite tendency is round, makes tolerance limitless defense right.In order to guarantee the stationarity of each segmentation block movement, the present invention is by each point Block is cut radially to be slidably mounted in mounting disc, make each segmentation block can only radially sliding along mounting disc, so as to avoid point Block run-off the straight or swing are cut, guarantees that the direction force that struts in stretching Circular Thin pipe where each segmentation block is uniform , and then reach reduction tolerance, make two Circular Thin pipe purposes that almost zero allowance is docked.Therefore, using the present invention When Circular Thin pipe butt welding tolerance limitless defense right welding fixture is welded, no longer need to splice and struck by hand by artificial It beats, two Circular Thin pipes need to only be covered simultaneously on the support annulus surrounded by several segmentation blocks, then pass through driving cylinder Driving transmission shaft can strut two Circular Thin pipes simultaneously, and make two Circular Thin pipe alignment.Therefore, the present invention can be big The raising production efficiency of amplitude reduces labor intensity of workers, and the tolerance due to that can considerably reduce docking, energy It is beautiful enough to make formed product, and improves the qualification rate of product.
In above structure, segmentation block is used for the Circular Thin pipe of stretching metal material, makes the Circular Thin pipe of two docking, Diameter and perimeter are equal, and the number for dividing block can be configured according to the actual size of Circular Thin pipe, for example, the present invention will The number of segmentation block is designed to 6 pieces, it is already possible to meet the needs of stretching Circular Thin pipe, but not limited to this, in other implementations In example, 8 pieces, 10 pieces, 12 pieces etc. can also be designed.
Preferably, referring to Fig. 1, the segmentation block includes arc block 520 and T-shaped block 530, and the outside of the arc block is formed It is detachably fixed and connect on the inside of the arcwall face, the lateral part of the T-shaped block and the arc block.In this way, segmentation block by Arc block and T-shaped block composition, are detachably fixed connection between arc block and T-block, quite convenient for disassembling, assembling and replacing arc block, with full The demand of the sufficient various sizes of Circular Thin pipe of stretching.Here, segmentation block forms a kind of only preferred reality by arc block and T-shaped block Example is applied, but not limited to this, in other embodiments, it can also be that the composition of other shapes or structure, such as T-block can also be Bar blocks etc..
Preferably, referring to fig. 2, arc-shaped back gas shielded slot 521, the back are formed on the arcwall face of the arc block The slot bottom of gas shielded slot is formed with the air inlet/outlet 522 of connective protection gas source, between two arcwall faces of two neighboring arc block It is embedded with connecting block 523, the connecting block is fixed in the arc block by fastener, the outside shape of the connecting block At the extension slot 524 for two back gas shielded slots having on the two neighboring arcwall face of connection.In above structure, by arc block Back gas shielded slot is formed on arcwall face, and connecting block is set between two arcwall faces of two neighboring arc block, passes through linking Extension slot on block connects two neighboring back gas shielded slot, then is connected to protection gas source by air inlet/outlet, forms A kind of gas shield annular groove being still connected to when each arc block struts, in this way, in strutting welding process, welding protection gas It is entered in gas shield annular groove by air inlet/outlet, achievees the purpose that welding gas is protected, to reduce weld seam heat effect Bandwidth avoids material from aoxidizing, and then improves weldquality.When it is implemented, groove is formed in the contact position of adjacent arc block, Connecting block is placed in two grooves of two neighboring arc block, and connecting block is fixed on an arc by fastener such as screw On shape block, in this way, connecting block moves together with an arc block in softened state, thus it is mobile relative to another arc block, It is engaged on connecting block just in the gap between two arc blocks.
Preferably, referring to figs. 2 and 3, the segmentation block, which radially slides the structure being set in the mounting disc, is: described The sliding rail 8 being disposed radially is installed in mounting disc, extension board 9 is installed in the T-block, cunning is installed on the extension board Block 10, the sliding block are slidably connected with the sliding rail.In this way, by the way that sliding rail is arranged in mounting disc, and be arranged in T-block and prolong Plate and sliding block are stretched, the function that is slidably connected between segmentation block and mounting disc may be implemented, here, sliding block and sliding rail cooperate, It plays and limits the mobile effect of segmentation block, that is to say, that define that segmentation block can only move radially, avoid and divide block Inclination is swung, and guarantees that the direction force that struts in stretching Circular Thin pipe where each segmentation block is uniform, Jin Erda To tolerance is reduced, making two Circular Thin pipes, almost zero allowance is docked.In above structure, due to each segmentation block composition The outer diameter for strutting body is greater than the outer diameter of mounting disc, and needs to carry out by drive rod between T-shaped block and retainer hingedly, therefore, The distance between T-shaped block and the mounting disc for having pulled open segmentation block, here, by installing extension board in T-shaped block, can play and keep away The effect of empty drive rod, convenient for passing through sliding block and sliding rail connection segmentation block and mounting disc.In other embodiments, the segmentation block The structure that radially sliding is set in the mounting disc can also be by way of guide post and pilot hole are cooperated.
Preferably, referring to figs. 2 and 3, the drive rod structure hinged with the retainer is: the one of the drive rod End is formed with the first U-shaped slot 610, and first bearing 210 is formed on the retainer, and the first bearing is installed by shaft In in the described first U-shaped slot;The drive rod structure hinged with the segmentation block is: the vertical section end of the T-shaped block Portion is formed with the second U-shaped slot 531, and the other end of the drive rod is formed with second bearing 620, and the second bearing is by turning Axis is installed in the described second U-shaped slot.Since transmission shaft drives retainer to move back and forth, and needs to avoid drive rod and transmission Articulated structure between seat and between drive rod and segmentation block generates abrasion and friction noise, therefore, in drive rod and transmission Seat between and drive rod and segmentation block between be attached by bearing and shaft, can while realizing hinge function, Achieve the purpose that reduce friction noise and abrasion.
Above embodiments are referring to attached drawing, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art Member by above-described embodiment carry out various forms on modification or change, but without departing substantially from essence of the invention in the case where, all It falls within the scope and spirit of the invention.

Claims (5)

1. a kind of Circular Thin pipe butt welding tolerance limitless defense right welding fixture, it is characterised in that: including transmission shaft (1), transmission Seat (2), mounting disc (3), fixed disk (4), several segmentation blocks (5) and with several segmentation blocks several drive rods correspondingly (6), it is fixed together between the fixed disk and the mounting disc by spaced several connecting rods (7), the segmentation It is formed on the outside of block arcwall face (510), several segmentation blocks are set in same plane, the arc on the outside of several segmentation blocks The end to end support annulus surrounded for stretching Circular Thin pipe in shape face, the segmentation block, which radially slides, is set to the installation On disk;Described transmission shaft one end is movably installed in the center of the fixed disk, the other end of the transmission shaft by axle sleeve It passes through from the evacuation through-hole of the mounting disc center and is fixedly connected afterwards with external impetus mechanism;The transmission cover for seat is fixed in institute The middle part of transmission shaft is stated, described drive rod one end is articulated on the retainer, and the drive rod other end is articulated with described point Cut the inside of block.
2. Circular Thin pipe butt welding tolerance limitless defense right welding fixture according to claim 1, it is characterised in that: described Dividing block includes arc block (520) and T-shaped block (530), and the outside of the arc block forms the arcwall face, the T-shaped block It is detachably fixed and connect on the inside of lateral part and the arc block.
3. Circular Thin pipe butt welding tolerance limitless defense right welding fixture according to claim 2, it is characterised in that: described Arc-shaped back gas shielded slot (521) is formed on the arcwall face of arc block, the slot bottom of the back gas shielded slot is formed with connection The air inlet/outlet (522) of gas source is protected, is embedded with connecting block (523) between two arcwall faces of two neighboring arc block, it is described Connecting block is fixed in the arc block by fastener, and the two neighboring arc of connection is formed on the outside of the connecting block The extension slot (524) of two back gas shielded slots on face.
4. Circular Thin pipe butt welding tolerance limitless defense right welding fixture according to claim 2, it is characterised in that: described Segmentation block radially slides the structure being set in the mounting disc: the sliding rail being disposed radially is equipped in the mounting disc (8), it is equipped with extension board (9), is equipped on the extension board sliding block (10) in the T-block, the sliding block and the sliding rail It is slidably connected.
5. Circular Thin pipe butt welding tolerance limitless defense right welding fixture according to claim 2, it is characterised in that: described The drive rod structure hinged with the retainer is: one end of the drive rod is formed with the first U-shaped slot (610), the biography It is formed with first bearing (210) on dynamic seat, the first bearing is installed in the described first U-shaped slot by shaft;The biography The lever structure hinged with the segmentation block is: the vertical section end of the T-shaped block is formed with the second U-shaped slot (531), institute The other end for stating drive rod is formed with second bearing (620), and the second bearing is installed on the described second U-shaped slot by shaft It is interior.
CN201910338455.7A 2019-04-25 2019-04-25 Welding jig is cut apart infinitely to circular thin wall pipe butt welding tolerance Active CN109940335B (en)

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CN114406573A (en) * 2022-01-27 2022-04-29 杰瑞环境科技有限公司 Manufacturing tool for rotary spray rod and manufacturing method for rotary spray rod
CN114871681A (en) * 2022-04-28 2022-08-09 西南石油大学 Telescopic cylinder group is to propping circle device

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