CN110125602B - Barrel flange welding position frock - Google Patents
Barrel flange welding position frock Download PDFInfo
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- CN110125602B CN110125602B CN201910407459.6A CN201910407459A CN110125602B CN 110125602 B CN110125602 B CN 110125602B CN 201910407459 A CN201910407459 A CN 201910407459A CN 110125602 B CN110125602 B CN 110125602B
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- 238000003466 welding Methods 0.000 title claims abstract description 86
- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 238000003780 insertion Methods 0.000 claims description 46
- 230000037431 insertion Effects 0.000 claims description 46
- 230000000694 effects Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000007704 transition Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a welding and positioning tool for a barrel flange, which comprises a support frame, wherein an upper positioning piece and a lower positioning piece are arranged on the support frame; the upper positioning part and the lower positioning part are respectively arranged on the upper positioning part and the lower positioning part on the peripheral surface, and the upper positioning part and the lower positioning part are respectively used for positioning and matching with the peripheral surface of the upper flange and the peripheral surface of the lower flange of the shell to be welded so as to enable the axes of the upper flange and the lower flange to be superposed; the support frame is also provided with a vertical positioning surface, and the vertical positioning surface is used for being matched with the flange end surface of the side branch pipe of the shell to be welded in a positioning way along the axial direction of the side branch pipe; the upper positioning part, the lower positioning part and the vertical positioning surface are horizontally and centrally arranged; the support frame has and is used for waiting to weld the horizontal place platform location complex location structure of casing, and location structure is used for making last setting element, lower setting element arrange along vertical direction, improves the welding efficiency of casing.
Description
Technical Field
The invention relates to a welding and positioning tool for a barrel flange.
Background
The shell of the voltage transformer is one of main electrical equipment of a transformer substation, one side of the shell is connected with primary high-voltage equipment, the other side of the shell is connected with secondary equipment, and the shell is mainly arranged in an integrated mode with switch equipment. As the occupied area of the transformer substation is more and more limited, the miniaturization of the switch equipment becomes a trend, and the requirement on the appearance volume is smaller and smaller.
The casing of voltage transformer casing generally adopts segmentation reducing, welding forming mode, for example the utility model patent that the publication number is CN202678083U, publication date is 2013.01.16 discloses a voltage transformer casing tubular structure to and the voltage transformer shell structure shown in fig. 1 and fig. 2, voltage transformer casing includes by lower supreme welded fastening's lower flange 2, main barrel 5, reducing barrel 4, transition barrel 3 and upper flange 1 in proper order. The two voltage transformer shells are variable-diameter shells, the upper flange 1 and the lower flange 2 form a cylinder flange of the variable-diameter shell, the variable-diameter shells can achieve miniaturization of the voltage transformer shells, and the voltage transformer shells are attractive in appearance and material-saving.
When the variable diameter shell shown in fig. 1 and 2 is welded, the process flow is usually adopted as follows: the lower flange 2, the main cylinder 5 and the reducing cylinder 4 are welded to form a lower cylinder part, the upper flange 1 and the transition cylinder 3 are welded to form an upper cylinder part, then the upper cylinder part and the lower cylinder part are welded, and finally the first side branch pipe 6, the second side branch pipe 7 and the main cylinder 5 are welded. In the welding process, the upper flange 1 and the lower flange 2 need to be centered and positioned, then the upper cylinder part and the lower cylinder part are welded and fixed, and then the side branch pipes are respectively positioned and welded. On one hand, the welding process flow is long, and the welding efficiency of the shell of the voltage transformer is low; on the other hand, in the prior art, two or more side branch pipes of the shell are generally arranged, and the length of each side branch pipe extending out of the main cylinder 5 is not necessarily completely equal, so that the side branch pipes need to be positioned through measurement, and the positioning operation of the side branch pipe on the shell is difficult.
Disclosure of Invention
The invention aims to provide a welding and positioning tool for a barrel flange, and the welding and positioning tool is used for solving the problem of low welding efficiency of a shell in the prior art.
The welding and positioning tool for the cylinder flange adopts the following technical scheme:
the cylinder flange welding and positioning tool comprises a support frame, wherein an upper positioning piece and a lower positioning piece are arranged on the support frame;
the upper positioning part and the lower positioning part are respectively arranged on the upper positioning part and the lower positioning part on the peripheral surface, and the upper positioning part and the lower positioning part are respectively used for positioning and matching with the peripheral surface of the upper flange and the peripheral surface of the lower flange of the shell to be welded so as to enable the axes of the upper flange and the lower flange to be superposed;
the support frame is also provided with a vertical positioning surface, and the vertical positioning surface is used for being matched with the flange end surface of the side branch pipe of the shell to be welded in a positioning way along the axial direction of the side branch pipe;
the upper positioning part, the lower positioning part and the vertical positioning surface are horizontally and centrally arranged;
the support frame is provided with a positioning structure which is used for positioning and matching with a horizontal placing platform of the shell to be welded, and the positioning structure is used for enabling the upper positioning piece and the lower positioning piece to be arranged in the vertical direction; or, the support frame is provided with a workpiece support surface for supporting and placing the lower flange end surface of the shell to be welded, and the arrangement direction of the upper positioning piece and the lower positioning piece is perpendicular to the workpiece support surface.
The invention has the beneficial effects that: the positioning parts of the two positioning parts are respectively matched with the peripheral surfaces of the upper flange and the lower flange of the shell to be welded in a positioning way, so that the axes of the upper flange and the lower flange are superposed, and the centering of the upper flange and the lower flange is realized; in addition, the positioning of the opposite side branch pipe can be realized by positioning and matching the vertical positioning surface and the flange end surface of the side branch pipe along the circumferential direction of the side branch pipe; the upper positioning part, the lower positioning part and the vertical positioning surface are horizontally and centrally arranged, and the shell to be welded and the support frame are placed on the horizontal placing platform or the shell to be welded is placed on the workpiece support surface, so that the lower flange of the shell to be welded and the horizontal measurement reference of the support frame can be ensured to be uniform; and the collateral branch pipe can rely on the vertical locating surface location on the support frame simultaneously when last flange, lower flange centering, perhaps relies on the vertical locating surface location on the support frame again after last flange, lower flange spot welding, and then spot welding fixes on the main drum body, accomplishes and treats the fixed location of each part of welded casing, and the positioning process of each part all can be accomplished through a barrel flange welding position frock to can reduce the welding process flow of casing, improve the welding efficiency of casing.
In order to realize the universality of the welding and positioning tool for the barrel flange, at least one of the upper positioning piece and the lower positioning piece in the scheme is a movable positioning piece which is arranged on the support frame and can be adjusted in position along the horizontal direction; the support frame is provided with a measuring reference for measuring the position of the movable positioning piece, the barrel flange welding positioning tool can be suitable for positioning the shell to be welded with different sizes of the upper flange and the lower flange by adjusting the position of the movable positioning piece, and the universality of the barrel flange welding positioning tool is improved.
For the commonality that further increases barrel flange welding position frock, in this scheme the support frame have be used for with treat the horizontal placement platform location fit's of welding shell location structure, go up the setting element and be movable setting element with lower setting element, can make this barrel flange welding position frock be applicable to the location of the collateral branch pipe that stretches out the length difference through adjusting the position of going up setting element, lower setting element, simultaneously can be applicable to more and go up flange and the poor different location of treating welding shell of lower flange size, further increase the commonality of barrel flange welding position frock. In addition, this barrel flange welding position frock can realize having a plurality of collateral branch pipes on the casing, and the collateral branch pipe stretches out the location of treating the collateral branch pipe that the welding casing axis size is different, conveniently treats the location of welding casing upside branch pipe.
In the scheme, the supporting frame is provided with a plug-in cavity, the movable positioning piece is provided with a plug-in handle used for guiding and inserting in the plug-in cavity, the cavity wall of the plug-in cavity is provided with a set screw, and the set screw is used for fixing the movable positioning piece which is adjusted in place to the supporting frame. The movable positioning piece is guided to be inserted into the cavity to be inserted, so that the movable positioning piece can be prevented from deflecting during movement and influencing the positioning effect of the movable positioning piece on the flange of the barrel body, and the set screw can be prevented from displacing during positioning and matching of the movable positioning piece and the flange and influencing the centering of the upper flange and the lower flange.
In order to reduce the friction between the movable positioning piece and the inserting cavity, in the scheme, guide grooves are formed in two opposite side cavity walls of the inserting cavity, guide wheels are arranged on the corresponding sides of the inserting handle, and the guide wheels are supported in the guide grooves in a rolling mode.
For increasing the precision of movable setting element position control, in this scheme the grafting handle splines the assembly at the grafting intracavity, the grafting handle is connected with and is used for driving the flexible helical drive structure of movable setting element, and helical drive structure can realize the continuous controllable regulation of movable setting element position, is favorable to increasing the regulation precision of movable setting element.
For convenient design and processing, the screw transmission structure in the scheme comprises a screw rod fixed on the insertion handle, the tail end of the screw rod extends out of the insertion cavity, the screw rod is provided with an adjusting nut, and one end of the insertion cavity, through which the screw rod penetrates out, is provided with a cavity wall matched with the adjusting nut in a stop manner along the axial direction of the screw rod.
For the centering effect of reinforcing flange and lower flange, in this scheme go up in location portion and the lower locating part at least one for with the arc surface of barrel flange outer peripheral face adaptation, the arc surface is bigger with the area of contact of barrel flange, the location effect is better, is favorable to reinforcing the centering effect of flange and lower flange, in addition, location portion simple structure, processing is convenient.
In order to simplify the structure of the support frame, the support frame is integrally a right-angled triangle, the lower positioning piece is arranged on one of right-angled sides of the right-angled triangle, and the bottom surface of the right-angled side forms the positioning structure.
Drawings
FIG. 1 is a perspective view of a prior art voltage transformer housing;
FIG. 2 is a front view of a prior art voltage transformer housing;
FIG. 3 is a perspective view of a specific embodiment of the welding and positioning tool for a cylinder flange according to the present invention;
FIG. 4 is a front view of a particular embodiment of the barrel flange welding position fixture of the present invention;
FIG. 5 is a schematic structural view of the upper positioning member shown in FIG. 3;
FIG. 6 is a schematic structural view of the lower positioning member shown in FIG. 3;
FIG. 7 is a schematic structural view of the supporting frame in FIG. 3;
FIG. 8 is an enlarged view of a portion of FIG. 7 at A;
FIG. 9 is an enlarged view of a portion of FIG. 7 at B;
FIG. 10 is a state diagram of the cylinder flange welding and positioning tool of FIG. 3 before positioning the voltage transformer shell;
FIG. 11 is a state diagram of the welding and positioning tool for the cylinder flange in FIG. 3 for positioning the upper flange and the lower flange;
FIG. 12 is a diagram illustrating the first side branch pipe positioned by the cylinder flange welding and positioning tool in FIG. 3;
FIG. 13 is a diagram illustrating the second side branch pipe positioned by the cylinder flange welding and positioning tool in FIG. 3;
fig. 14 is a state diagram of the voltage transformer case of fig. 1 at the completion of welding.
In the figure: 1-upper flange; 2-lower flange; 3-a transition cylinder; 4-a reducing cylinder; 5-main cylinder; 6-first side branch pipe; 7-a second side branch pipe; 11-a support frame; 12-an upper positioning member; 13-a lower locating element; 14-top thread; 15-lower jackscrew; 16-a horizontal placement platform; 17-upper nut; 18-lower nut; 111-upper threaded hole; 112-lower threaded hole; 113-an upper jack; 114-a lower jack; 115-vertical positioning surface; 116-a positioning structure; 121-an upper positioning part; 122-an upper bearing; 123-upper screw rod; 131-a lower locating portion; 132-a lower bearing; 133-lower screw.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 3 and 4, the cylinder flange welding and positioning tool of the present invention includes a support frame 11, an upper positioning part 12 and a lower positioning part 13 are disposed on the support frame 11, the upper positioning part 12 is provided with an upper positioning part 121, the lower positioning part 13 is provided with a lower positioning part 131, the upper positioning part 121 in this embodiment is an arc surface adapted to an outer peripheral surface of an upper flange 1 of a to-be-welded housing shown in fig. 1 and 2, and the lower positioning part 131 is an arc surface adapted to an outer peripheral surface of a lower flange 2 of the to-be-welded housing shown in fig. 1 and 2.
In order to realize the universality of the welding and positioning tool for the barrel flange, the upper positioning piece 12 and the lower positioning piece 13 in the embodiment are movable positioning pieces with adjustable positions along the horizontal direction. As shown in fig. 5 to 9, the upper side and the lower side of the supporting frame 11 are provided with insertion holes extending along the horizontal direction, the hole walls of the insertion holes form an insertion cavity, the insertion hole arranged on the upper side of the supporting frame 11 is an upper insertion hole 113, the insertion hole arranged on the lower side of the supporting frame 11 is a lower insertion hole 114, the upper positioning element 12 is inserted into the upper insertion hole 113, and the lower positioning element 13 is inserted into the lower insertion hole 114.
As shown in fig. 5 and fig. 6, the upper positioning element 12 and the lower positioning element 13 both include two perpendicular sides, wherein a first side is fixed at a middle position of a second side, the first side of the upper positioning element 12 is used as an insertion handle of the upper positioning element 12, the first side of the lower positioning element 13 is used as an insertion handle of the lower positioning element 13, and the insertion handle of the upper positioning element 12 is defined as an upper insertion handle, and the insertion handle of the lower positioning element 13 is defined as a lower insertion handle. The upper insertion hole 113 and the lower insertion hole 114 in this embodiment are both rectangular holes, and the shapes of the upper insertion handle and the lower insertion handle are adapted to the corresponding insertion holes, so that the upper insertion handle is inserted into the upper insertion hole 113 in a guiding manner, and the lower insertion handle is inserted into the lower insertion hole 114 in a guiding manner.
As shown in fig. 7 to 9, the hole wall of the upper insertion hole 113 is provided with an upper screw hole 111, and the hole wall of the lower insertion hole 114 is provided with a lower screw hole 112. As shown in fig. 3, the upper screw hole 111 is internally threaded with an upper jack 14, and the lower screw hole 112 is internally threaded with a lower jack 15. After the upper positioning piece 12 and the lower positioning piece 13 are adjusted in place, the corresponding positioning pieces are fixed on the support frame 11 through the upper jackscrew 14 and the lower jackscrew 15 respectively.
As shown in fig. 10, the cylinder flange welding and positioning tool further includes a horizontal placement platform 16, and the horizontal placement platform 16 is used for placing the support frame 11 and the shell to be welded. As shown in fig. 7, the support frame 11 in this embodiment is a right triangle, the right triangle has a first right-angle side and a second right-angle side that are perpendicular to each other, the lower insertion hole 114 is disposed on the first right-angle side, and a lower end surface of the first right-angle side forms a positioning structure 116 for positioning and matching the support frame 11 and the horizontal placement platform 16; the upper jack 113 is arranged on the upper side of the support frame 11; the second right-angle side is provided with a vertical positioning surface 115 which is used for being matched with the flange end face of the side branch pipe of the shell to be welded in a positioning mode, specifically, the vertical positioning surface 115 is formed by the moving direction of the second right-angle side perpendicular to the movable positioning piece and the side face of the positioning portion close to the movable positioning piece, and the upper positioning portion 121, the lower positioning portion 131 and the vertical positioning surface 115 are horizontally arranged in the middle. The positioning of the side branch pipe can be realized by the positioning fit of the vertical positioning surface 115 and the flange end surface of the side branch pipe of the shell to be welded.
In order to reduce the frictional resistance between the upper positioning member 12, the lower positioning member 13 and the corresponding insertion holes, guide grooves are arranged on two side hole walls opposite to each other in the horizontal direction in the upper insertion hole 113, an upper bearing 122 is arranged on the corresponding side of the upper insertion handle, and the upper bearing 122 is guided and rolled and supported in the guide grooves of the upper insertion hole 113. The two side hole walls opposite to each other in the horizontal direction in the lower insertion hole 114 are also provided with guide grooves, the corresponding side of the lower insertion handle is provided with a lower bearing 132, and the lower bearing 132 is guided and rolled and supported in the guide grooves of the lower insertion hole 114.
As shown in fig. 3 to 6, an upper screw 123 is fixed at one end of the upper insertion handle away from the upper positioning portion 121, a tail end of the upper screw 123 extends out of the upper insertion hole 113, an upper nut 17 is connected to the upper screw 123 in a threaded manner, and an end surface of the upper insertion hole 113 away from the upper positioning portion 121 is used for being axially matched with the upper nut 17 along the upper screw 123 in a blocking manner; a lower screw 133 is fixed at one end of the lower plug handle far away from the lower positioning part 131, and a lower nut 18 is connected to the lower screw 133 in a threaded manner. In order to facilitate screwing the upper nut 17 and the lower nut 18, the upper nut 17 and the lower nut 18 in this embodiment are wing nuts. When the upper nut 17 is rotated, the upper jack 113 is in rotation stopping fit with the upper insertion handle, so that the upper positioning piece 12 is prevented from rotating along with the upper nut 17, and the telescopic adjustment of the upper positioning piece 12 is realized; when the lower nut 18 is rotated, the lower insertion hole 114 is in rotation-stopping fit with the lower insertion handle, so that the lower positioning piece 13 is prevented from rotating along with the lower nut 18, and the telescopic adjustment of the lower positioning piece 13 is realized.
The upper bearing 122 in this embodiment constitutes a guide wheel provided on the upper positioning member 12, and the lower bearing 132 constitutes a guide wheel provided on the lower positioning member 13; in other embodiments, the upper bearing 122 and the lower bearing 132 may be replaced by cylindrical rollers, respectively, and in this case, the cylindrical rollers constitute the guide wheel; or, neither an upper bearing nor a lower bearing is arranged, and the movable positioning piece is assembled in the jack in a guiding and moving way.
The right-angled triangle support frame 11 is adopted for supporting, so that the stability of the whole cylinder flange welding and positioning tool is guaranteed.
The vertical positioning surface 115 serves as a measurement reference for measuring the horizontal distance between the upper positioning portion 121 and the lower positioning portion 131 when performing position adjustment of the upper positioning member 12 and the lower positioning member 13. According to the drawing dimension requirement, the absolute value of the difference of the outer side radiuses set by the lower flange 2 and the upper flange 1 is obtained, and the upper positioning piece 12 and the lower positioning piece 13 are adjusted to enable the horizontal distance between the upper positioning part 121 and the lower positioning part 131 to be equal to the absolute value of the difference of the outer side radiuses set by the lower flange 2 and the upper flange 1. Specifically, the upper positioning member 12 and the lower positioning member 13 may be adjusted to the second side to be attached to the vertical positioning surface 115, then the upper nut 17 and the lower nut 18 are screwed, and the distance between the vertical positioning surface 115 and the upper positioning portion 121 and the distance between the vertical positioning surface 115 and the lower positioning portion 131 are measured by a ruler, and after the adjustment of the relative positions of the upper positioning member 12 and the lower positioning member 13 is completed, the upper positioning member 12 and the lower positioning member 13 are fixed by the upper jackscrew 14.
When the side branch pipe needs to be positioned, according to the drawing size requirement, the distance between the flange end face of the corresponding side branch pipe and the outer peripheral face of the lower flange 2 in the axial direction of the side branch pipe is obtained, the support frame 11 is placed on one side of the shell to be welded, and the distance between the vertical positioning face 115 and the outer peripheral face of the lower flange 2 in the telescopic direction of the movable positioning piece is equal to the set distance between the flange end face of the side branch pipe and the outer peripheral face of the lower flange 2 in the axial direction of the side branch pipe. Specifically, the distance between the vertical positioning surface 115 and the lower positioning portion 131 in the telescopic direction of the movable positioning member may be measured to be equal to the set distance between the flange end surface of the side branch pipe and the outer peripheral surface of the lower flange 2 in the axial direction of the side branch pipe. And then adjusting the lower positioning piece 13, respectively positioning and matching the upper positioning piece 12 and the upper flange 1, positioning and matching the lower positioning piece 13 and the lower flange 2, completing the relative position adjustment of the upper positioning piece 12 and the lower positioning piece 13, and after the adjustment is completed, fixing the upper positioning piece 12 and fixing the lower positioning piece 13 through the upper jackscrew 14 and the lower jackscrew 15.
The horizontal placement platform 16 in this embodiment is composed of a workshop riveting platform, and the flange end face of the lower flange 2, the lower surface of the support frame 11 and the horizontal placement platform 16 can be effectively ensured to be in a horizontal plane through the horizontal placement platform 16, so that the uniformity of measurement references during welding is ensured, and the product quality of the shell is improved.
When the voltage transformer shell shown in fig. 1 and 2 is welded, an upper flange 1 and a transition cylinder 3 are welded to form an upper cylinder part, and a lower flange 2, a main cylinder 5 and a reducing cylinder 4 are welded to form a lower cylinder part; and then the upper cylinder part, the lower cylinder part, the first side branch pipe 6 and the second side branch pipe 7 are subjected to positioning welding through a cylinder flange welding positioning tool. The specific positioning welding process of the upper cylinder part, the lower cylinder part, the first side branch pipe 6 and the second side branch pipe 7 is as follows:
1) as shown in fig. 10, the support frame 11, the upper cylinder part and the lower cylinder part are firstly placed on the horizontal platform 16, that is, the lower flange end face of the lower flange 2 is supported on the horizontal platform 16, the upper cylinder part is placed on the upper part of the lower cylinder part, and the positioning structure 116 of the support frame 11 is attached to the horizontal platform 16;
2) as shown in fig. 11, the support frame 11 is moved to make the upper positioning portion 121 fit with the outer peripheral surface of the upper flange 1 of the to-be-welded voltage transformer shell, the lower positioning portion 131 is in positioning fit with the outer peripheral surface of the lower flange 2 of the to-be-welded voltage transformer shell, so as to realize the centering of the upper flange 1 and the lower flange 2, and the welding seam between the transition cylinder 3 and the reducing cylinder 4 is spot-welded by using a welding gun;
3) as shown in fig. 12, according to the drawing requirements, the support frame 11 is moved to make the distance between the vertical positioning surface 115 and the outer peripheral surface of the lower flange 2 in the telescopic direction of the movable positioning piece equal to the set distance between the flange end surface of the side branch pipe and the outer peripheral surface of the lower flange 2 in the axial direction of the side branch pipe, then the lower positioning piece 13 is adjusted to make the upper positioning piece 12 and the outer peripheral surface of the upper flange 1 in positioning fit, the lower positioning piece 13 and the outer peripheral surface of the lower flange 2 in positioning fit, then the flange end surface of the first side branch pipe 6 of the voltage transformer shell to be welded is attached to the vertical positioning surface 115, and the welding seam between the main cylinder 5 and the first side branch pipe 6 is spot-welded by using a welding gun;
4) as shown in fig. 13, repeating the step 3), and spot-welding the welding seam of the second side branch pipe 7 and the main cylinder 5 by using a welding gun;
5) as shown in fig. 14, the spot welding of the to-be-welded voltage transformer case is completed, and the complete welding of the to-be-welded voltage transformer case is prepared.
In other embodiments, when the voltage transformer shell shown in fig. 1 and 2 is welded, the supporting frame 11 may also be placed on one side of the voltage transformer shell to be welded according to the drawing requirements, so that the distance between the vertical positioning surface 115 and the outer circumferential surface of the lower flange 2 in the telescopic direction of the movable positioning part is equal to the set distance between the flange end surface of the side branch pipe and the outer circumferential surface of the lower flange 2 in the axial direction of the side branch pipe; and simultaneously, the lower positioning piece 13 is adjusted so that the horizontal distance between the upper positioning part 121 and the lower positioning part 131 is equal to the difference of the outer radii set by the lower flange 2 and the upper flange 1. Then, the flange end face of the first side branch pipe 6 is attached to the vertical positioning face 115, the upper positioning portion 121 is in positioning fit with the upper flange 1, the lower positioning portion 131 is in positioning fit with the lower flange 2, positioning of the upper flange 1, the lower flange 2 and the first side branch pipe 6 is completed at one time, and then welding seams of the transition cylinder 3 and the reducing cylinder 4 and welding seams of the main cylinder 5 and the first side branch pipe 6 are spot-welded by using a welding gun; and repeating the step 3) in the embodiment, and performing spot welding on the welding seam between the main barrel 5 and the second side branch pipe 7 by using a welding gun to complete the spot welding of the shell of the voltage transformer to be welded, so as to prepare for performing complete welding of the shell of the voltage transformer to be welded.
In other embodiments, when the voltage transformer shell shown in fig. 1 and 2 is welded, the supporting frame 11 may also be placed on one side of the voltage transformer shell to be welded according to the drawing requirements, so that the distance between the vertical positioning surface 115 and the outer circumferential surface of the lower flange 2 in the axial direction of the side branch is equal to the set distance between the flange end surface of the side branch and the outer circumferential surface of the lower flange 2 in the axial direction of the side branch, and the lower positioning portion 131 and the lower flange 2 are positioned and matched; then inserting a first side branch pipe 6 on the main cylinder 5 to enable the flange end face of the first side branch pipe 6 to be attached to the vertical positioning face 115, completing positioning of the first side branch pipe 6 and the lower flange 2, and then spot-welding the welding seam between the main cylinder 5 and the first side branch pipe 6 by using a welding gun; repeating the steps, and spot-welding the welding seam of the second side branch pipe 7 and the main cylinder 5 by using a welding gun; finally, adjusting the relative positions of the upper positioning piece 12 and the lower positioning piece 13 to ensure that the upper positioning piece 12 is in positioning fit with the outer peripheral surface of the upper flange 1, the lower positioning piece 13 is in positioning fit with the outer peripheral surface of the lower flange 2, and welding seams of the main barrel and the first side branch pipes are spot-welded by using a welding gun; and finishing the spot welding of the shell of the voltage transformer to be welded, and preparing for the complete welding of the shell of the voltage transformer to be welded.
The positioning processes of the upper flange 1, the lower flange 2 and the side branch pipe can be completed through a cylinder flange welding positioning tool, so that the welding process flow of the shell can be reduced, and the welding efficiency of the shell is improved.
In addition, the welding and positioning tool for the cylinder flange is simple in structure and low in manufacturing cost, and can be used for welding and positioning the shell of the voltage transformer and positioning the lightning arrester and other variable diameter shells in the production and processing process.
The upper positioning piece and the lower positioning piece in the embodiment are movable positioning pieces, in other embodiments, the upper positioning piece or the lower positioning piece can be only set as a movable positioning piece with an adjustable position along the horizontal direction, the position of the other positioning piece is not adjustable, and at the moment, the relative positions of the two positioning pieces can be adjusted only by adjusting the movable positioning pieces. At the moment, the intersection position of the first side and the second side of the non-adjustable positioning piece is used as a measuring reference, or a certain set position of the non-adjustable positioning piece is used as a measuring reference; go up setting element and also equal fixed connection of lower setting element at the support frame, and go up the position of setting element, lower setting element and be unadjustable, at this moment, barrel flange welding position frock is only applicable to the welding position of a casing.
The support frame in this embodiment is equipped with the jack, and the movable positioning piece direction removes the assembly on the jack, in other embodiments, can set up a plurality of connecting holes along the horizontal direction on the support frame, is provided with the mounting hole that is used for corresponding with the connecting hole on the movable positioning piece, and the mounting hole is adjusted well and is fixed the position regulation who realizes the movable positioning piece through the fastener with the connecting hole of difference. At the moment, the cylinder flange welding and positioning tool is suitable for positioning the flanges of the shells to be welded with specific sizes.
In other embodiments, the hole wall of the jack can also be provided with an opening extending along the axial direction of the jack, meanwhile, two side walls of the opening are provided with connecting holes for inserting a fastener and connecting the two side walls, the hole wall of the jack is made of an elastic material, the opening is opened in a natural state, and at the moment, the inserting handle can move axially along the jack; when the two side walls are connected through the fastening piece, the opening is tightened, and the inserting handle is fixed on the supporting frame.
The movable positioning piece and the support frame in the embodiment realize the position adjustment of the movable positioning piece through a threaded transmission structure consisting of a screw rod and a nut; in other embodiments, an internal threaded hole may be formed in the movable positioning member, a screw rod is threadedly connected to the internal threaded hole, and a stop surface that is in stop fit with the screw rod along the axial direction of the screw rod is formed on the support frame, so that the position of the movable positioning member can be adjusted by rotating the screw rod. Or the position of the movable positioning piece can be adjusted directly by manually pushing and pulling the movable positioning piece by an operator without arranging a nut and a screw rod.
The jack in the embodiment is formed by a rectangular hole, and in other embodiments, the jack can also be formed by other polygonal holes such as a triangle, a pentagon and the like; the jack also can be formed by a circular hole, at the moment, two positioning blocks can be arranged on the movable positioning piece at intervals along the circumferential direction of the circular hole, two positioning plates which correspond to the positioning blocks one to one are arranged on the support frame, and the positioning plates and the positioning blocks are in blocking fit along the circumferential direction of the circular hole, so that the movable positioning piece is prevented from rotating along with the nut when the nut is rotated. The jack can also be replaced by a dovetail groove type sliding groove, so that the movable positioning piece is prevented from being separated from the sliding groove, and the movable positioning piece can be prevented from rotating along with the nut when the nut rotates.
The upper positioning part and the lower positioning part in the embodiment are both formed by arc surfaces; in other embodiments, the upper positioning portion and the lower positioning portion can be in the form of trapezoidal grooves, and when the flange positioning device is used, the groove walls on two sides of the trapezoidal grooves and the groove bottom wall are used for being in contact fit with at least three different positions in the circumferential direction of the cylinder flange, so that the cylinder flange is positioned. The radian of the positioning matching part can be properly increased to increase the contact area of the positioning matching part and the corresponding flange and improve the positioning precision, for example, the positioning part is set to be a semicircular arc surface or an arc surface close to the semicircular arc surface.
In other embodiments, the upper positioning portion may also be V-shaped or L-shaped, and at this time, the positioning portion and the corresponding flange are in two-point contact to realize positioning and matching of the flange.
The welding and positioning tool for the cylinder flange in the embodiment comprises a horizontal placing platform for supporting and positioning a supporting frame; in other embodiments, the horizontal placement platform may be formed by a part of the support frame, that is, the outer support frame is provided with a workpiece support surface for supporting and placing the lower flange end surface of the to-be-welded housing, and the arrangement direction of the upper positioning element and the lower positioning element is perpendicular to the workpiece support surface.
The whole support frame in this embodiment is right triangle, and in other embodiments, the whole support frame can be square or polygon, and it can only be ensured that the support frame is provided with a vertical surface forming a vertical positioning surface and a horizontal surface forming a positioning structure.
The positioning structure of the supporting frame in this embodiment is formed by the bottom end surface of the supporting frame, and in other embodiments, the positioning structure may also be other structures that can support the supporting frame on the horizontal placement platform and keep the supporting frame vertically arranged, for example, the positioning structure may be a leg provided at the bottom of the supporting frame, and may also be a supporting block fixed at the bottom of the supporting frame.
In other embodiments, a vertical plate extending along the up-down direction can be fixed on the support frame, the vertical plate is provided with a reference side surface perpendicular to the telescopic direction of the movable positioning piece, and the reference side surface of the vertical plate is used as the common measurement reference of the upper positioning piece and the lower positioning piece; or two vertical plates are arranged on the support frame at intervals along the telescopic direction of the movable positioning piece, the two vertical plates are respectively provided with a reference side surface perpendicular to the telescopic direction of the movable positioning piece, the reference side surfaces of the two vertical plates are respectively used as the measurement references of the upper positioning piece and the lower positioning piece, the distance between the reference side surfaces of the two vertical plates is constant, the measurement references of the two positioning pieces have a set difference value, and the difference value is equal to the distance between the reference side surfaces of the two vertical plates; two lines can be drawn on the support frame at intervals along the telescopic direction of the movable positioning piece, and the two lines are respectively used as the measuring reference of the upper positioning piece and the lower positioning piece; or a line perpendicular to the telescopic direction of the movable positioning piece is drawn on the support frame along the up-down direction, and the line is used as the common measurement reference of the upper positioning piece and the lower positioning piece.
Claims (5)
1. The welding and positioning tool for the barrel flange is characterized by comprising a support frame, wherein an upper positioning piece and a lower positioning piece are arranged on the support frame;
the upper positioning part and the lower positioning part are respectively arranged on the upper positioning part and the lower positioning part on the peripheral surface, and the upper positioning part and the lower positioning part are respectively used for positioning and matching with the peripheral surface of the upper flange and the peripheral surface of the lower flange of the shell to be welded so as to enable the axes of the upper flange and the lower flange to be superposed;
the support frame is also provided with a vertical positioning surface, and the vertical positioning surface is used for being matched with the flange end surface of the side branch pipe of the shell to be welded in a positioning way along the axial direction of the side branch pipe;
the upper positioning part, the lower positioning part and the vertical positioning surface are horizontally and centrally arranged;
the support frame is provided with a positioning structure which is used for positioning and matching with a horizontal placing platform of the shell to be welded, and the positioning structure is used for enabling the upper positioning piece and the lower positioning piece to be arranged in the vertical direction; or, a workpiece supporting surface for supporting and placing the lower flange end surface of the shell to be welded is arranged on the supporting frame, the arrangement direction of the upper positioning piece and the lower positioning piece is perpendicular to the workpiece supporting surface, and at least one of the upper positioning piece and the lower positioning piece is a movable positioning piece which is arranged on the supporting frame and can be adjusted in position along the horizontal direction; the support frame is provided with a measuring reference for measuring the position of the movable positioning piece; be equipped with the grafting chamber on the support frame, the activity setting element has and is used for the direction to insert the grafting handle of establishing in the grafting chamber, is equipped with holding screw on the chamber wall in grafting chamber, and holding screw is used for fixing the activity setting element of adjusting the target in place to the support frame, the grafting chamber is equipped with the guide slot on the ascending two relative side chamber walls of horizontal direction, the corresponding side of grafting handle is equipped with the leading wheel, and the leading wheel is along the extending direction of grafting handle side by side interval arrangement, and the leading wheel rolls and supports in the guide slot, the grafting handle splines the assembly at the grafting intracavity, the grafting handle is connected with and is used for driving the flexible helical drive structure of activity setting element.
2. The cylinder flange welding and positioning tool as claimed in claim 1, wherein the support frame is provided with a positioning structure for positioning and matching with a horizontal placing platform of the shell to be welded, and the upper positioning piece and the lower positioning piece are movable positioning pieces.
3. The cylinder flange welding and positioning tool as claimed in claim 1 or 2, wherein the screw transmission structure comprises a screw fixed on the insertion handle, the tail end of the screw extends out of the insertion cavity, the screw is provided with an adjusting nut, and the end of the insertion cavity, through which the screw extends, is provided with a cavity wall matched with the adjusting nut in a stop manner along the axial direction of the screw.
4. The cylinder flange welding and positioning tool according to claim 1 or 2, wherein at least one of the upper positioning part and the lower positioning part is an arc surface adapted to the outer peripheral surface of the cylinder flange.
5. The cylinder flange welding and positioning tool according to claim 1 or 2, wherein the support frame is integrally in the shape of a right triangle, the lower positioning piece is arranged on one of right-angled sides of the right triangle, and the bottom surface of the right-angled side forms the positioning structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407459.6A CN110125602B (en) | 2019-05-16 | 2019-05-16 | Barrel flange welding position frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407459.6A CN110125602B (en) | 2019-05-16 | 2019-05-16 | Barrel flange welding position frock |
Publications (2)
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| CN110125602A CN110125602A (en) | 2019-08-16 |
| CN110125602B true CN110125602B (en) | 2022-03-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202087992U (en) * | 2011-05-24 | 2011-12-28 | 新疆秦域工业设备制造安装有限公司 | Assembled tire for cylinder flange |
| CN104002089B (en) * | 2014-06-12 | 2015-08-19 | 安徽星马专用汽车有限公司 | A kind of assembly welding positioner for concrete mixer carrier pipe |
| CN106493501B (en) * | 2016-10-31 | 2018-11-23 | 亿和精密工业（苏州）有限公司 | Pipe fitting welding jig and welding method |
| CN108000047B (en) * | 2018-01-29 | 2024-03-12 | 浙江工业大学之江学院 | Thin-wall three-way pipe clamping device |
| CN108188648B (en) * | 2018-01-29 | 2024-04-02 | 浙江工业大学 | Clamping device for thin-wall pipe |
| CN108098213B (en) * | 2018-02-02 | 2024-05-31 | 唐山玉环工贸有限公司 | Pipe welding machine with lifting adjusting device |
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Effective date of registration: 20200812 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant after: PINGGAO GROUP Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant before: PINGGAO GROUP Co.,Ltd. Applicant before: STATE GRID CORPORATION OF CHINA |
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