CN113843573A - Clamp for welding long pipe group - Google Patents
Clamp for welding long pipe group Download PDFInfo
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- CN113843573A CN113843573A CN202111254867.6A CN202111254867A CN113843573A CN 113843573 A CN113843573 A CN 113843573A CN 202111254867 A CN202111254867 A CN 202111254867A CN 113843573 A CN113843573 A CN 113843573A
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- 238000003466 welding Methods 0.000 title claims abstract description 145
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 96
- 230000007704 transition Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 5
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- B23K37/0533—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 external pipe alignment clamps
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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
-
- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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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
- B23K2101/06—Tubes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A clamp for welding a long pipe group belongs to the technical field of part processing equipment. The clamp for welding the long pipe group comprises a base, an upper clamping area and a side clamping area, wherein the upper clamping area and the side clamping area are arranged on the base, a plurality of welding compression structures I are uniformly arranged in the upper clamping area and used for compressing a long arm inner pipe and a long arm guide pipe to realize the welding of the long arm inner pipe and the long arm guide pipe, and a welding compression structure II is arranged in the side clamping area and used for compressing a long arm outer cylinder to realize the welding of the long arm outer cylinder and the long arm inner pipe. The clamp for welding the long pipe group is simple to operate, low in cost, high in efficiency, high in positioning accuracy and strong in practicability, can complete quick positioning and clamping of the pipe group, and facilitates welding of the long pipe group.
Description
Technical Field
The invention relates to the technical field of part processing equipment, in particular to a clamp for welding a long pipe group.
Background
Long pipe parts have been widely used in production and life, and in the production process of products using long pipe parts, several long pipe parts are often required to form a pipe group, and are arranged and fixed according to a certain position relationship by using various processing methods. Because the long pipe part is small in diameter and the axial size is far larger than the radial size, the long pipe is easy to stress and bend in the subsequent processing process, and the long pipe part is particularly obvious in small-diameter long pipe parts.
At present, the fixed welded mode of processing that generally adopts to long tube part, but when long tube part welding, produce a large amount of heats during the welding and make the long tube take place to warp, influence the life of long tube part and the position relation between the long tube part, lead to the long tube part that processes not to satisfy design requirement and operation requirement.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the clamp for welding the long pipe group, which is simple to operate, low in cost, high in efficiency, high in positioning precision and strong in practicability, can complete quick positioning and clamping of the pipe group, and provides convenience for welding the long pipe group.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a clamp for welding a long pipe group comprises a long arm outer cylinder, a long arm inner pipe and a long arm guide pipe, and comprises a base, an upper clamping area and a side clamping area, wherein the upper clamping area and the side clamping area are arranged on the base;
the upper clamping area is uniformly provided with a plurality of welding compression structures I for compressing the long-arm inner pipe and the long-arm guide pipe so as to realize the welding of the long-arm inner pipe and the long-arm guide pipe;
and a second welding and pressing structure is arranged in the side clamping area and used for pressing the long arm outer cylinder so as to realize the welding of the long arm outer cylinder and the long arm inner pipe.
Furthermore, the side clamping area is also provided with a third welding and pressing structure for pressing the flange so as to realize the welding of the flange and the long arm outer cylinder.
Further, one of the welding compact structure is including setting firmly in the rectangle boss of base and can dismantle the inner tube welding briquetting of being connected with the rectangle boss, the rectangle boss is provided with the ladder groove that is used for placing long arm inner tube and long arm pipe, the bottom in ladder groove is convex structure, inner tube welding briquetting be provided with the groove that compresses tightly that the ladder groove corresponds is one.
Furthermore, the inner tube welding pressing block is provided with a first knurled small-head screw for pressing the long-arm inner tube in a threaded fit manner and a first knurled high-head screw for being detachably connected with the rectangular boss.
Furthermore, the welding and pressing structure comprises a strip-shaped groove arranged on the side surface of the base and used for placing the long arm outer cylinder; the outer detachable of bar groove is provided with a plurality of outer tube welding briquetting, outer tube welding briquetting be provided with the groove two that compresses tightly that the bar groove corresponds for compress tightly the long arm urceolus.
Furthermore, the outer tube welding pressing block is provided with a second knurled small-head screw for pressing the long arm outer cylinder in a threaded fit manner, and a second knurled high-head screw for being detachably connected with the base.
Further, the third welding and pressing structure comprises a flange welding pressing block which is detachably arranged outside the strip-shaped groove, and the flange welding pressing block is provided with a third pressing groove corresponding to the strip-shaped groove and used for pressing the flange; the flange welding pressing block is provided with a third knurled small-head screw for pressing the flange in a threaded fit manner and a third knurled high-head screw for detachable connection with the base.
Furthermore, one side of the strip-shaped groove close to the flange welding pressing block is provided with a deep groove perpendicular to the strip-shaped groove, so that the long arm outer cylinder and the flange can be conveniently welded.
Furthermore, an L-shaped boss is arranged at the head end of the base and used for axially limiting the end part of the long pipe group; the tail end of the base is provided with a pin hole, a cylindrical pin is arranged in the pin hole in an interference fit mode, and the cylindrical pin is in transition fit with the hole of the flange.
The invention has the beneficial effects that:
1) the clamping design that the base positioning device is separated from the pressing block and the screw clamping device is adopted integrally, so that interference caused by insufficient precision of the positioning device of the clamp when a long pipe is positioned is avoided, and the clamping precision is easier to control;
2) the inner pipe welding pressing block, the outer pipe welding pressing block and the flange seat welding pressing block are detachably connected with the base in a threaded mode, so that quick clamping is realized, and the machining efficiency is improved;
3) the rectangular boss is arranged on the upper surface of the base, so that the positioning and clamping part is concentrated on the boss, the non-clamping area is increased, the manufacturing difficulty of the clamp is reduced, the clamp is easy to process and manufacture, and the cost is reduced;
4) the invention prevents the long pipe from deforming caused by heat during welding by clamping the pipe fittings in multiple sections.
Additional features and advantages of the invention will be set forth in part in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural diagram of a fixture for welding a long pipe assembly according to an embodiment of the present invention;
FIG. 2 is a general view illustrating a use status of a jig for welding a long pipe group according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a right side view of a use state of a fixture for welding a long pipe group according to an embodiment of the present invention
FIG. 4 is a schematic front view of a jig for welding a long pipe set according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view B-B of FIG. 4 of the present invention;
FIG. 6 is a schematic top view of a jig for welding a long pipe set according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view C-C of FIG. 6 of the present invention;
FIG. 8 is a schematic structural diagram of a first welding compact structure provided in an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a third welding compact structure provided in the embodiment of the present invention;
fig. 10 is a schematic illustration of a welded long tube set provided by an embodiment of the present invention.
Reference numerals in the drawings of the specification include:
1-base, 2-long arm outer cylinder, 3-long arm inner tube, 4-long arm guide tube, 5-flange, 6-rectangular boss, 7-inner tube welding pressing block, 8-stepped groove, 9-circular arc structure, 10-pressing groove I, 11-knurled screw I, 12-knurled screw I, 13-strip groove, 14-outer tube welding pressing block, 15-pressing groove II, 16-knurled screw II, 17-knurled screw II, 18-flange welding pressing block, 19-pressing groove III, 20-knurled screw III, 21-knurled screw III, 22-deep groove, 23-L-shaped boss, 24-cylindrical pin and 25-capillary tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "two," and "three" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In order to solve the problems in the prior art, as shown in fig. 1 to 10, the present invention provides a fixture for welding a long pipe group, the long pipe group comprises a long arm outer cylinder 2, a long arm inner pipe 3 and a long arm guide pipe 4, the fixture for welding the long pipe group comprises a base 1, and an upper clamping area and a side clamping area which are arranged on the base 1;
the upper clamping area is uniformly provided with a plurality of welding and pressing structures I for pressing the long-arm inner pipe 3 and the long-arm guide pipe 4 so as to realize the welding of the long-arm inner pipe 3 and the long-arm guide pipe 4;
and a second welding and pressing structure is arranged in the side clamping area and is used for pressing the long-arm outer cylinder 2 so as to realize the welding of the long-arm outer cylinder 2 and the long-arm inner pipe 3.
In this embodiment, the upper clamping area is disposed on the upper surface of the base 1, and the side clamping area is disposed on the side surface of the base 1.
Further, a welding and pressing structure III is further arranged in the side clamping area and used for pressing the flange 5 so as to realize welding of the flange 5 and the long-arm outer cylinder 2.
Specifically, welding compact structure one is including setting firmly in the rectangle boss 6 of base 1 and can dismantle the inner tube welding briquetting 7 of being connected with rectangle boss 6, and rectangle boss 6 is provided with the ladder groove 8 that is used for placing inner tube and pipe, and the bottom in ladder groove 8 is convex structure 9, and inner tube welding briquetting 7 is provided with the groove 10 that compresses tightly that corresponds with ladder groove 8. The inner pipe welding pressing block 7 is provided with a first knurled small-head screw 11 used for pressing the inner pipe in a threaded fit mode and a first knurled high-head screw 12 used for being detachably connected with the rectangular boss 6. As a preferred embodiment, the width of the first pressing groove 10 is larger than the diameter of the long-arm inner pipe 3 and smaller than the sum of the diameters of the long-arm inner pipe 3 and the long-arm guide pipe 4, so that the long-arm guide pipe 4 is clamped, the first pressing groove 10 is prevented from being in contact with the long-arm inner pipe 3, repeated positioning is prevented, and clamping and positioning accuracy is improved.
In this embodiment, a plurality of rectangular bosses 6 are arranged in the upper clamping area, so that a longer positioning structure is divided into a plurality of positioning units, namely, the stepped groove 8 is adopted to adopt a segmented design, so that the number of non-positioning areas is increased, the manufacturing cost of the base 1 is reduced on the whole, and the precision is improved. Rectangle boss 6 and base 1 integrated into one piece processing, the length direction setting of base 1 is followed to the ladder groove 8 of rectangle boss 6, and ladder groove 8 height, width and the camber of the circular arc structure 9 of bottom are confirmed according to rather than complex long arm inner tube 3 and long arm pipe 4 to the realization is to the location of long arm inner tube 3 and long arm pipe 4. The first compression groove 10 is in clearance fit with the long arm inner tube 3 in the height direction, and the long arm inner tube 3 is clamped by the lower step of the stepped groove 8, the circular arc-shaped structure 9 at the bottom of the stepped groove 8 and the first knurled small-head screw 11. The first compression groove 10 is matched with the upper step of the step groove 8 to fix the long-arm guide pipe 4 above the long-arm inner pipe 3. The inner tube welding pressing block 7 is detachably connected with the rectangular boss 6 of the base 1 through a knurled high-head screw I12, so that the long-arm inner tube 3 and the long-arm guide tube 4 can be quickly detached after being welded. When in actual use, the long-arm inner tube 3 is firstly placed into the stepped groove 8; then the long-arm conduit 4 is placed above the long-arm inner tube 3 in the stepped groove 8; then screwing a knurled first screw 12 to enable the inner pipe welding pressing block 7 to press the long arm guide pipe 4, and screwing a knurled first screw 11 to press the long arm inner pipe 3; and finally, welding the long-arm guide pipe 4 and the outer wall of the long-arm inner pipe 3 at welding mark points on two sides of the inner pipe welding pressing block 7.
Specifically, the welding and pressing structure II comprises a strip-shaped groove 13 arranged on the side surface of the base 1 and used for placing the long arm outer cylinder 2; the bar groove 13 is externally detachably provided with a plurality of outer pipe welding pressing blocks 14, and the outer pipe welding pressing blocks 14 are provided with two pressing grooves 15 corresponding to the bar groove 13 and used for pressing the long arm outer cylinder 2. The outer pipe welding pressing block 14 is provided with a second knurled screw 16 used for pressing the long arm outer cylinder 2 in a threaded fit mode and a second knurled screw 17 used for being detachably connected with the base 1.
In the embodiment, the strip-shaped groove 13 is arranged along the length direction of the base 1, and the second pressing groove 15 is in clearance fit with the long arm outer cylinder 2, so that repeated positioning is prevented, and the clamping positioning precision is improved; the width of the strip-shaped groove 13 is equal to the diameter of the long-arm outer cylinder 2, and the depth of the strip-shaped groove 13 is larger than the radius of the long-arm outer cylinder 2 and smaller than the diameter of the long-arm outer cylinder 2, so that the long-arm outer cylinder 2 can be positioned. When the device is actually used, firstly, a welded long-arm guide tube 4 and a welded long-arm inner tube 3 are placed into a long-arm outer tube 2, the long-arm inner tube 3 is pressed tightly by at least one capillary tube 25, the outer walls of the long-arm guide tube 4 and the long-arm inner tube 3 are both attached to the inner wall of the long-arm outer tube 2, the position of the long-arm inner tube 3 corresponds to a welding hole of the long-arm outer tube 2, then, the long-arm outer tube 2 is placed into a strip-shaped groove 13, and the long-arm outer tube 2 is pressed tightly by a knurled small-head screw II 16; and finally, welding the long-arm outer cylinder 2 and the long-arm inner pipe 3 through the welding holes.
Specifically, the third welding and pressing structure comprises a flange welding pressing block 18 which is detachably arranged outside the strip-shaped groove 13, and the flange welding pressing block 18 is provided with a third pressing groove 19 corresponding to the strip-shaped groove 13 and used for pressing the flange 5; the flange welding pressing block 18 is provided with a third knurled screw 20 for pressing the flange 5 in a threaded fit manner and a third knurled screw 21 for detachably connecting with the base 1. One side of the strip-shaped groove 13 close to the flange welding pressing block 18 is provided with a deep groove 22 perpendicular to the strip-shaped groove 13, so that the long-arm outer cylinder 2 and the flange 5 can be conveniently welded.
In this embodiment, the deep groove 22 divides the strip-shaped groove 13 into two parts, one part is used for placing the long arm outer cylinder 2, the other part is used for placing the flange 5, and the size of the part of the strip-shaped groove 13 for placing the flange 5 is limited according to the actual size of the flange 5. During actual use, the long-arm outer cylinder 2 is inserted into the flange 5, and the flange 5 is limited and clamped through the cylindrical pin 24, the end face of the tail end of the base 1 and the knurled small-head screw III 20, so that high-precision welding of the long-arm outer cylinder 2 and the flange 5 is realized. The third pressing groove 19 is in clearance fit with the flange 5, so that repeated positioning is prevented, and clamping and positioning accuracy is improved.
In this embodiment, the whole of inner tube welding briquetting 7, outer tube welding briquetting 14, flange welding briquetting 18 is the rectangle structure, specific size is set for as required, the central point of inner tube welding briquetting 7 puts and is provided with along its width direction and compresses tightly groove one 10, the central point of outer tube welding briquetting 14 puts and is provided with along its width direction and compresses tightly groove two 15, the central point of flange welding briquetting 18 puts and is provided with along its width direction and compresses tightly groove three 19, bar groove 13, compress tightly groove one 10, compress tightly groove two 15 and compress tightly groove three 19 and be the rectangle recess, all set up along the length direction of base 1. A threaded hole is formed in the center of the inner pipe welding pressing block 7 in the height direction and used for being matched with the knurled small-head screw I11 to press the long-arm inner pipe 3 tightly; two sides of the first knurled screw 11 are symmetrically provided with first knurled screw 12, and the first knurled screw 12 is in threaded fit with the inner pipe welding pressing block 7 so as to realize detachable connection of the inner pipe welding pressing block 7 and the rectangular boss 6. A threaded hole is formed in the center of the outer pipe welding pressing block 14 in the height direction and used for being matched with the second knurled small-head screw 16 to press the long arm outer cylinder 2 tightly; two knurled screw heads 17 are symmetrically arranged on two sides of the knurled screw head 16, and the knurled screw heads 17 are in threaded fit with the outer pipe welding pressing block 14 so as to realize detachable connection of the outer pipe welding pressing block 14 and the base 1. A threaded hole is formed in the center of the flange welding pressing block 18 in the height direction and is used for being matched with the knurled small-head screw III 20 to tightly press the flange 5; the two sides of the third knurled screw 20 are symmetrically provided with third knurled screw 21, and the third knurled screw 21 is in threaded fit with the flange welding pressing block 18 so as to realize detachable connection of the flange welding pressing block 18 and the base 1.
Further, the head end of the base 1 is provided with an L-shaped boss 23 for axially limiting the end of the long pipe group; the tail end of the base 1 is provided with a pin hole, a cylindrical pin 24 is arranged in the pin hole in an interference fit mode, and the cylindrical pin 24 is in transition fit with the hole of the flange 5.
In this embodiment, two cylindrical pins 24 and two pin holes are provided, one each is provided above and below two cylindrical pins 24, the cylindrical pins 24 are in transition fit with the holes of the flange 5, and the flange 5 is positioned on a plane structure of the end face of the matching tail end.
In the invention, the two sides of the inner tube welding pressing block 7 on the rectangular boss 6 are provided with the paired round holes and the long round holes which are used as welding mark points to play a role of marking the welding position, thereby defining the welding position, facilitating the welding and realizing the rapid and high-quality welding.
In the invention, the diameter and the length of each long pipe in the long pipe group to be clamped are 8mm and more than 400mm, and the welding process is limited by the size and the welding process of each long pipe in the long pipe group, so that the deformation is easy to occur in the welding process.
The invention discloses a using method of a clamp for welding a long pipe group, which comprises the following steps:
taking four-tube group welding as an example, the four-tube group comprises two long-arm guide tubes 4, a long-arm inner tube 3 and a long-arm outer tube 2:
firstly, two long-arm guide pipes 4 and a long-arm inner pipe 3 are placed in a stepped groove 8 of an upper clamping area of a base 1, an inner pipe welding pressing block 7 is placed, a knurled high-head screw I12 is adopted for fixing, a twisted knurled small-head screw I11 is used for clamping the long-arm inner pipe 3, welding of the long-arm inner pipe 3 and the outer wall of the long-arm guide pipe 4 is carried out according to welding mark points, and an inner pipe group is formed after the two long-arm guide pipes 4 and a long arm are welded; twisting the knurled first high-head screw 12 and the knurled first small-head screw 11, and disassembling the inner pipe group;
secondly, the inner pipe group is placed into the long-arm outer cylinder 2 and is tightly propped through the two capillary tubes 25, so that the outer walls of the two long-arm guide pipes 4 and the long arm are in contact with the inner wall of the long-arm outer cylinder 2, and the long-arm outer pipe 2, the long-arm inner pipe 3, the two long-arm guide pipes 4 and the two capillary tubes 25 form an outer pipe group;
thirdly, the outer tube group is placed in a strip-shaped groove 13 in a clamping area on the side of the base 1, a hole of the flange 5 is installed corresponding to the position of a cylindrical pin 24 at the tail end of the base 1, and one end of the long-arm outer cylinder 2 is inserted into the flange 5; installing an outer pipe welding pressing block 14 and a flange welding pressing block 18, specifically, fixing the outer pipe welding pressing block 14 through a second knurled screw 17, clamping the long arm outer cylinder 2 through a second knurled screw 16, fixing the flange welding pressing block 18 through a third knurled screw 21, and clamping the flange 5 through a third knurled screw 20; welding the long arm outer cylinder 2 and the long arm inner pipe 3 and welding the long arm outer cylinder 2 and the flange 5 according to the welding mark points;
finally, the second knurled screw 17, the second knurled screw 16, the third knurled screw 21 and the third knurled screw 20 are twisted, and the welded long pipe group is taken down.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A clamp for welding a long pipe group, which comprises a long arm outer cylinder, a long arm inner pipe and a long arm guide pipe, is characterized in that,
the clamp for welding the long pipe group comprises a base, an upper clamping area and a side clamping area, wherein the upper clamping area and the side clamping area are arranged on the base;
the upper clamping area is uniformly provided with a plurality of welding compression structures I for compressing the long-arm inner pipe and the long-arm guide pipe so as to realize the welding of the long-arm inner pipe and the long-arm guide pipe;
and a second welding and pressing structure is arranged in the side clamping area and used for pressing the long arm outer cylinder so as to realize the welding of the long arm outer cylinder and the long arm inner pipe.
2. The clamp for welding the long pipe group is characterized in that the side clamping area is further provided with a welding pressing structure III for pressing the flange to realize the welding of the flange and the long arm outer cylinder.
3. The clamp for welding the long pipe group according to claim 1 or 2, wherein the welding compression structure comprises a rectangular boss fixedly arranged on the base and an inner pipe welding pressing block detachably connected with the rectangular boss, the rectangular boss is provided with a stepped groove for placing the long arm inner pipe and the long arm guide pipe, and the bottom of the stepped groove is of an arc-shaped structure; the inner tube welding pressing block is provided with a first pressing groove corresponding to the stepped groove.
4. The clamp for welding the long pipe group is characterized in that the inner pipe welding pressing block is provided with a first knurled small-head screw for pressing the inner pipe of the long arm in a threaded fit mode and a first knurled high-head screw for detachably connecting with the rectangular boss.
5. The clamp for welding the long pipe group according to claim 1 or 2, wherein the welding pressing structure two comprises a strip-shaped groove arranged on the side surface of the base, a plurality of outer pipe welding pressing blocks are detachably arranged outside the strip-shaped groove, and the outer pipe welding pressing blocks are provided with pressing grooves two corresponding to the strip-shaped groove and used for pressing the long arm outer cylinder.
6. The clamp for welding the long pipe group is characterized in that the outer pipe welding pressing block is provided with a second knurled small-head screw for pressing the outer cylinder of the long arm in a threaded fit mode and a second knurled high-head screw for detachably connecting with the base.
7. The clamp for welding the long pipe group according to claim 5, wherein the third welding pressing structure comprises a third flange welding pressing block which is detachably arranged outside the strip-shaped groove, and the third flange welding pressing block is provided with a third pressing groove corresponding to the strip-shaped groove and used for pressing the flange; the flange welding pressing block is provided with a third knurled small-head screw for pressing the flange in a threaded fit manner and a third knurled high-head screw for detachable connection with the base.
8. A clamp for welding a long pipe group according to claim 7, wherein a deep groove perpendicular to the strip-shaped groove is formed in one side, close to the flange welding pressing block, of the strip-shaped groove, so that the welding of the long arm outer cylinder and the flange is facilitated.
9. The clamp for welding the long pipe group according to claim 1 or 2, wherein the head end of the base is provided with an L-shaped boss for axially limiting the end of the long pipe group; the tail end of the base is provided with a pin hole, a cylindrical pin is arranged in the pin hole in an interference fit mode, and the cylindrical pin is in transition fit with the hole of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254867.6A CN113843573B (en) | 2021-10-27 | 2021-10-27 | Clamp for welding long tube set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111254867.6A CN113843573B (en) | 2021-10-27 | 2021-10-27 | Clamp for welding long tube set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113843573A true CN113843573A (en) | 2021-12-28 |
| CN113843573B CN113843573B (en) | 2024-03-26 |
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ID=78983242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111254867.6A Active CN113843573B (en) | 2021-10-27 | 2021-10-27 | Clamp for welding long tube set |
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Cited By (1)
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| CN117900869A (en) * | 2024-03-20 | 2024-04-19 | 四川仨川航空科技股份有限公司 | Clamping fixture and method for machining aviation long beam parts |
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| CN113843573B (en) | 2024-03-26 |
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