CN221270145U - Welding fixture for heat exchange tube - Google Patents
Welding fixture for heat exchange tube Download PDFInfo
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- CN221270145U CN221270145U CN202322616544.8U CN202322616544U CN221270145U CN 221270145 U CN221270145 U CN 221270145U CN 202322616544 U CN202322616544 U CN 202322616544U CN 221270145 U CN221270145 U CN 221270145U
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- heat exchange
- groove
- exchange tube
- fixedly connected
- ball
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- 238000003466 welding Methods 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a welding fixture for heat exchange tubes, which comprises a bottom plate and is characterized in that: the upper side of the bottom plate is fixedly connected with a threaded column, the threaded column is in threaded connection with a lantern ring, the upper side of the lantern ring is fixedly connected with a conical ring, a group of fan-shaped spring pieces which are circumferentially and uniformly distributed are fixed at the upper end of the threaded column, all the fan-shaped spring pieces are matched with the conical ring, a ball is arranged in the fan-shaped spring pieces, a groove is formed in the upper side of the threaded column, the ball is arranged in the groove, and the ball is matched with the groove; the upper end of the ball is fixedly connected with a sleeve, a cylinder is rotationally connected in the sleeve, the upper end of the cylinder is fixedly connected with the center of a transverse plate, and two ends of the upper side of the transverse plate are respectively and fixedly connected with a supporting block; the upper part of each supporting block is respectively provided with a V-shaped groove. The utility model can fix and support the heat exchange tube, and is convenient for angle adjustment during welding.
Description
Technical Field
The utility model relates to the technical field of heat exchange tube clamps, in particular to a welding clamp for a heat exchange tube.
Background
The heat exchange tube is a pipeline for transferring heat and is widely applied to heat exchangers in the industries of chemical industry, petroleum, metallurgy, electric power and the like. Welding of the heat exchange tubes is an important process in the manufacture of heat exchangers, directly affecting the performance and life of the heat exchanger. There are various welding methods of the heat exchange tube, such as resistance welding, argon arc welding, laser welding, etc., wherein the argon arc welding is a common high-quality welding method, which can ensure the uniformity and the compactness of the welding seam and reduce the generation of defects such as air holes, cracks, etc. In the welding process of the heat exchange tube, the tube ends are required to be aligned and clamped in an opposite way so as to ensure the quality and strength of the welding line. Currently, there are various types of heat exchanger tube butt clamps commonly used in the market, such as chuck type, clamp type, snap ring type, etc., which generally require two tubes to be fastened together by bolts or other fasteners and then welded. However, these clamps have some drawbacks, such as: firstly, the operation is complicated, bolts or other fasteners need to be screwed or unscrewed for many times, and the time and the labor are consumed; secondly, the structure is complex, a plurality of parts are needed to be formed, and the cost and the weight are increased; thirdly, the alignment accuracy is low, so that the gap between the pipe ends is easily too large or too small, and the formation and quality of welding seams are affected; fourthly, the surface of the pipe end is easy to damage, and the corrosion resistance and the aesthetic property of the pipeline are reduced, so that the heat exchange pipe opposite-port clamp is required to be designed, and the advantages of simplicity and convenience in operation, simple structure, high opposite-port precision, no damage to the surface of the pipe end and the like are taken into consideration to at least solve the problems.
Disclosure of utility model
In order to make up for the defects of the prior art, the utility model provides the welding fixture for the heat exchange tube, which can fix and support the heat exchange tube and is convenient for angle adjustment during welding.
The utility model is realized by the following technical scheme:
The utility model provides a welding jig of heat exchange tube, includes bottom plate, its characterized in that: the upper side of the bottom plate is fixedly connected with a threaded column, the threaded column is in threaded connection with a lantern ring, the upper side of the lantern ring is fixedly connected with a conical ring, a group of fan-shaped spring pieces which are circumferentially and uniformly distributed are fixed at the upper end of the threaded column, all the fan-shaped spring pieces are matched with the conical ring, a ball is arranged in the fan-shaped spring pieces, a groove is formed in the upper side of the threaded column, the ball is arranged in the groove, and the ball is matched with the groove;
The upper end of the ball is fixedly connected with a sleeve, a cylinder is rotationally connected in the sleeve, the upper end of the cylinder is fixedly connected with the center of a transverse plate, and two ends of the upper side of the transverse plate are respectively and fixedly connected with a supporting block;
The upper part of each supporting block is respectively provided with a V-shaped groove.
As a further limitation of the technical scheme, the middle part of one side of each supporting block is respectively fixed with a hinging block, each hinging block is respectively hinged with two ends of a cross rod of a T-shaped rod, each vertical rod end of the T-shaped rod is respectively fixedly connected with one side center of a pressing plate, each other side center of the pressing plate is respectively fixedly connected with a symmetrical limiting rod, a clamping groove is formed between the symmetrical limiting rods, each clamping groove can be respectively clamped with a bolt, the lower side of each bolt is respectively fixedly connected with the center of a rotating shaft, two ends of each rotating shaft are respectively hinged with a U-shaped block, and each U-shaped block is respectively fixedly connected with the corresponding other side of the supporting block.
As a further limitation of the technical scheme, each bolt is respectively in threaded connection with a nut, and the nut is arranged on the upper side of the limiting rod.
As a further limitation of the present solution, the sleeve is screwed with a jackscrew, which can bear against the cylinder.
As a further limitation of the present technical solution, the lower side of the pressing plate is covered with a rubber layer.
As a further limitation of the present technical solution, the bottom surface of the V-shaped groove is covered with a rubber layer.
As a further limitation of the technical scheme, a group of handles with evenly distributed circumferences are fixed on the cambered surface of the lantern ring.
As a further limitation of the technical scheme, four corners of the bottom plate are respectively provided with mounting holes.
The beneficial effects of the utility model are as follows:
(1) The self-locking mechanism formed by the fan-shaped spring piece and the ball can realize the angle adjustment of the two groups of heat exchange tubes to be welded, and no extra fastener or tool is needed
(2) The circumference adjusting device consisting of the sleeve and the cylinder is adopted, so that the circumference angle of the heat exchange tube during welding can be adjusted;
(3) The clamp plate can be opened and closed, is convenient for to the fixed of heat exchange tube, adopts V-arrangement groove and clamp plate as the mechanism of centre gripping pipe end, can fix the pipe end effectively to can not damage the pipe end surface, V-arrangement groove and clamp plate inboard are provided with the rubber layer, can increase frictional force and cushioning force, protect the pipe end to avoid the fish tail or warp.
Drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a perspective view of the second embodiment of the present utility model.
Fig. 3 is a perspective view of the present utility model.
Fig. 4 is a partial perspective view of the present utility model.
Fig. 5 is a perspective view of the present utility model.
In the figure: 1. the device comprises a transverse plate, 2, a pressing plate, 3, a T-shaped rod, 4, a hinging block, 5, a supporting block, 6, a cylinder, 7, a sleeve, 8, a lantern ring, 9, a bottom plate, 10, a mounting hole, 11, a threaded column, 12, a handle, 13, a conical ring, 14, a fan-shaped spring piece, 15, a limiting rod, 16, a nut, 17, a jackscrew, 18, a V-shaped groove, 19, a ball, 20, a groove, 21, a bolt, 22 and a rotating shaft.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below by means of specific embodiments and with reference to fig. 1 to 5. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The utility model provides a welding fixture for heat exchange tubes, which comprises a bottom plate 9, wherein a threaded column 11 is fixedly connected to the upper side of the bottom plate 9, the threaded column 11 is in threaded connection with a lantern ring 8, a conical ring 13 is fixedly connected to the upper side of the lantern ring 8, a group of fan-shaped spring pieces 14 which are uniformly distributed circumferentially are fixedly arranged at the upper end of the threaded column 11, all the fan-shaped spring pieces 14 are matched with the conical ring 13, a ball 19 is arranged in the fan-shaped spring pieces 14, a groove 20 is arranged on the upper side of the threaded column 11, the ball 19 is arranged in the groove 20, and the ball 19 is matched with the groove 20;
The upper end of the ball 19 is fixedly connected with a sleeve 7, the sleeve 7 is rotationally connected with a cylinder 6, the upper end of the cylinder 6 is fixedly connected with the center of the transverse plate 1, and the two ends of the upper side of the transverse plate 1 are respectively fixedly connected with a supporting block 5;
the upper part of each of the support blocks 5 is provided with a V-shaped groove 18, respectively.
The middle part of one side of every supporting shoe 5 is fixed articulated piece 4 respectively, every articulated piece 4 articulates the horizontal pole both ends of T shape pole 3 respectively, every the montant tip of T shape pole 3 is fixed connection clamp plate 2's one side center respectively, every the opposite side center of clamp plate 2 is fixed connection symmetry's gag lever post 15 respectively, and the symmetry form the draw-in groove between the gag lever post 15, every can block into bolt 21 respectively in the draw-in groove, every the downside of bolt 21 is fixed connection pivot 22's center respectively, every pivot 22's both ends articulated U-shaped piece 23 respectively, every U-shaped piece 23 is fixed connection respectively the opposite side of corresponding supporting shoe 5.
Each of the bolts 21 is screwed with a nut 16, and the nut 16 is disposed on the upper side of the stopper rod 15.
The sleeve 7 is screwed with a jackscrew 17, which jackscrew 17 can bear against the cylinder 6.
The lower side of the pressing plate 2 is coated with a rubber layer.
The bottom surface of the V-shaped groove 18 is covered with a rubber layer.
The cambered surface of the lantern ring 8 is fixed with a group of handles 12 which are circumferentially and uniformly distributed.
Four corners of the bottom plate 9 are respectively provided with mounting holes 10.
The using mode is as follows: when two groups of heat exchange tubes are required to be welded, the bottom plate 9 of the device is installed at a proper position through the installation hole 10, the nut 16 is unscrewed, the pressing plate 2 swings upwards to be opened, two groups of heat exchange tubes are respectively inserted into the corresponding V-shaped grooves 18 to enable one ends of the heat exchange tubes to be welded to be aligned, then the pressing plate 2 is pulled downwards, the bolts 21 are clamped into clamping grooves formed by the limiting rods 15, the pressing plate 2 presses the heat exchange tubes, the nut 16 is screwed to fix the pressing plate 2, then welding is carried out, when the welding is required, the rotating handle 12 drives the lantern ring 8 and the conical ring 13 to rotate, the conical ring 13 moves upwards to release the fan-shaped spring piece 14, the fan-shaped spring piece 14 does not lock the round balls 19 any more, the transverse plate 1 is pulled to drive the cylinder 6 and the sleeve 7 to swing, the sleeve 7 drives the round balls 19 to rotate in the grooves 20, the transverse plate 1 drives the supporting blocks 5 to swing, the supporting blocks 5 and the heat exchange tubes are adjusted, the reverse rotating handle 12 drives the lantern ring 8 and the conical ring 13 to rotate to move down to lock the fan-shaped heat exchange tubes to enable the limiting of the round balls 19 after adjustment, the jack-off 17 is completed, and the transverse plate 1 drives the round spring piece 6 to rotate in the sleeve 7 to drive the round spring piece to rotate in the round spring piece to rotate, and the round spring piece 5 to rotate the round spring piece to rotate.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (8)
1. Welding jig of heat exchange tube, including bottom plate (9), its characterized in that: the upper side of the bottom plate (9) is fixedly connected with a threaded column (11), the threaded column (11) is in threaded connection with a lantern ring (8), the upper side of the lantern ring (8) is fixedly connected with a conical ring (13), a group of fan-shaped spring pieces (14) which are uniformly distributed in the circumference are fixed at the upper end of the threaded column (11), all the fan-shaped spring pieces (14) are matched with the conical ring (13), a ball (19) is arranged in the fan-shaped spring pieces (14), a groove (20) is formed in the upper side of the threaded column (11), the ball (19) is arranged in the groove (20), and the ball (19) is matched with the groove (20);
The upper end of the ball (19) is fixedly connected with a sleeve (7), the sleeve (7) is rotationally connected with a cylinder (6), the upper end of the cylinder (6) is fixedly connected with the center of the transverse plate (1), and two ends of the upper side of the transverse plate (1) are respectively fixedly connected with a supporting block (5);
The upper part of each supporting block (5) is respectively provided with a V-shaped groove (18).
2. The welding jig for a heat exchange tube according to claim 1, wherein: every articulated piece (4) are fixed respectively in one side middle part of supporting shoe (5), every articulated piece (4) are articulated the horizontal pole both ends of T shape pole (3) respectively, every the montant tip of T shape pole (3) is one side center of fixed connection clamp plate (2) respectively, every the opposite side center of clamp plate (2) is gag lever post (15) of fixed connection symmetry respectively, and the symmetry form the draw-in groove between gag lever post (15), every can block into bolt (21) respectively in the draw-in groove, every the downside of bolt (21) is the center of fixed connection pivot (22) respectively, every the both ends of pivot (22) are articulated U-shaped piece (23) respectively, every U-shaped piece (23) are fixed connection respectively the opposite side of corresponding supporting shoe (5).
3. A heat exchange tube welding jig as set forth in claim 2, wherein: each bolt (21) is respectively connected with a nut (16) in a threaded mode, and the nut (16) is arranged on the upper side of the limiting rod (15).
4. The welding jig for a heat exchange tube according to claim 1, wherein: the sleeve (7) is in threaded connection with a jackscrew (17), and the jackscrew (17) can prop against the cylinder (6).
5. A heat exchange tube welding jig as set forth in claim 2, wherein: the lower side of the pressing plate (2) is coated with a rubber layer.
6. The welding jig for a heat exchange tube according to claim 1, wherein: the bottom surface of the V-shaped groove (18) is covered with a rubber layer.
7. The welding jig for a heat exchange tube according to claim 1, wherein: the cambered surface of the lantern ring (8) is fixed with a group of handles (12) which are uniformly distributed on the circumference.
8. The welding jig for a heat exchange tube according to claim 1, wherein: four corners of the bottom plate (9) are respectively provided with mounting holes (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322616544.8U CN221270145U (en) | 2023-09-26 | 2023-09-26 | Welding fixture for heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322616544.8U CN221270145U (en) | 2023-09-26 | 2023-09-26 | Welding fixture for heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221270145U true CN221270145U (en) | 2024-07-05 |
Family
ID=91693065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322616544.8U Active CN221270145U (en) | 2023-09-26 | 2023-09-26 | Welding fixture for heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221270145U (en) |
-
2023
- 2023-09-26 CN CN202322616544.8U patent/CN221270145U/en active Active
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