CN113843573B - Clamp for welding long tube set - Google Patents
Clamp for welding long tube set Download PDFInfo
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- CN113843573B CN113843573B CN202111254867.6A CN202111254867A CN113843573B CN 113843573 B CN113843573 B CN 113843573B CN 202111254867 A CN202111254867 A CN 202111254867A CN 113843573 B CN113843573 B CN 113843573B
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- welding
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- tube
- groove
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- 238000003466 welding Methods 0.000 title claims abstract description 145
- 238000003825 pressing Methods 0.000 claims abstract description 69
- 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 claims description 6
- 230000007704 transition Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 4
- 238000007906 compression Methods 0.000 claims 4
- 238000012545 processing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication 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
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
-
- 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
-
- 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
-
- 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 fixture for welding long tube sets belongs to the technical field of part processing equipment. The clamp for welding the long tube group comprises a base and an upper clamping area and a side clamping area which are arranged on the base, wherein the upper clamping area is uniformly provided with a plurality of first welding pressing structures for pressing the long-arm inner tube and the long-arm guide tube so as to realize the welding of the long-arm inner tube and the long-arm guide tube, and the side clamping area is provided with a second welding pressing structure for pressing the long-arm outer tube so as to realize the welding of the long-arm outer tube and the long-arm inner tube. The fixture for welding the long tube group is simple to operate, low in cost, high in efficiency, high in positioning accuracy and high in practicality, can be used for rapidly positioning and clamping the tube group, and is convenient for welding the long tube group.
Description
Technical Field
The invention relates to the technical field of part processing equipment, in particular to a clamp for welding long pipe sets.
Background
The long pipe parts are widely applied to production and living, and in the production process of products by applying the long pipe parts, a plurality of long pipe parts are often required to form a pipe group, and various processing methods are applied to arrange and fix the long pipe parts according to a certain position relation. Because the long pipe part has small diameter and the axial dimension is far larger than the radial dimension, the long pipe is easy to generate stress bending and other phenomena in the subsequent processing process, and the long pipe part has more obvious performance particularly in the long pipe part with small diameter.
At present, a welding processing mode is generally adopted for fixing long pipe parts, but when the long pipe parts are welded, a large amount of heat is generated during welding so that the long pipe is deformed, the service life of the long pipe parts and the position relationship among the long pipe parts are influenced, and the processed long pipe parts do not meet the design requirement and the use 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 in operation, low in cost, high in efficiency, high in positioning precision and strong in practicability, can be used for rapidly positioning and clamping the pipe group, and provides convenience for welding the long pipe group.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the fixture for welding the long tube group comprises a long arm outer cylinder, a long arm inner tube and a long arm guide tube, wherein the fixture for welding the long tube 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 first welding pressing structures for pressing 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 the side clamping area is provided with a welding pressing structure II for pressing the long-arm outer cylinder so as to realize the welding of the long-arm outer cylinder and the long-arm inner tube.
Furthermore, the side clamping area is also provided with a welding pressing structure III for pressing the flange so as to realize the welding of the flange and the long-arm outer cylinder.
Further, the first welding pressing 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, the bottom of the stepped groove is of a circular arc structure, and the inner pipe welding pressing block is provided with a pressing groove corresponding to the stepped groove.
Further, the inner pipe welding press block is provided with a knurled small-head screw I for pressing the long-arm inner pipe in a threaded fit mode and a knurled high-head screw I for being detachably connected with the rectangular boss.
Further, the welding compacting structure II comprises a strip-shaped groove arranged on the side surface of the base and used for placing the long-arm outer cylinder; the strip-shaped groove is provided with a plurality of outer tube welding press blocks in a detachable mode, and the outer tube welding press blocks are provided with pressing grooves II corresponding to the strip-shaped groove and used for pressing the long-arm outer cylinder.
Further, the outer tube welding press block is provided with a knurling small-head screw II for pressing the long-arm outer tube in a threaded fit mode, and a knurling high-head screw II for being detachably connected with the base.
Further, the welding pressing structure III 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 pressing groove III corresponding to the strip-shaped groove and used for pressing the flange; the flange welding briquetting screw thread fit is provided with the knurling small-head screw III for compressing tightly the flange to and be used for with the base can dismantle the knurling high-head screw III of being connected.
Further, 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, and welding of the long-arm outer cylinder and the flange is facilitated.
Further, an L-shaped boss is arranged at the head end of the base and used for axially limiting the end part of the long tube group; the tail end of the base is provided with a pin hole, the pin hole is provided with a cylindrical pin in an interference fit mode, and the cylindrical pin is in transition fit with a hole of the flange.
The invention has the beneficial effects that:
1) The invention integrally adopts the clamping design that the base positioning device is separated from the pressing block and the screw clamping device, thereby avoiding interference caused by insufficient precision of the positioning device of the clamp when positioning the long tube and being easier to control the clamping precision;
2) According to the invention, the inner pipe welding press block, the outer pipe welding press block and the flange seat welding press block are detachably connected with the base in a threaded manner, so that quick clamping is realized, and the processing efficiency is improved;
3) The rectangular boss is arranged on the upper surface of the base, so that the positioning and clamping parts are 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) According to the invention, the pipe fitting is clamped in multiple sections, so that the deformation phenomenon of the long pipe caused by heat during welding is prevented.
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 view of a fixture for welding long tube sets according to an embodiment of the present invention;
fig. 2 is an overall schematic view of a use state of a fixture for welding long tube sets according to an embodiment of the present invention;
fig. 3 is a right side view schematically illustrating a use state of a fixture for welding long tube sets according to an embodiment of the present invention
Fig. 4 is a schematic front view of a use state of a fixture for welding long tube sets according to an embodiment of the present invention;
FIG. 5 is a B-B cross-sectional view of FIG. 4 in accordance with the present invention;
fig. 6 is a schematic top view showing a use state of a jig for welding a long tube set according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of the C-C of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic structural view of a welding press structure I according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a welding pressing structure III according to an embodiment of the present invention;
fig. 10 is a schematic view of a welded long tube set provided by an embodiment of the present invention.
Reference numerals in the drawings of the specification include:
the welding fixture comprises a base, a 2-long arm outer cylinder, a 3-long arm inner tube, a 4-long arm guide tube, a 5-flange, a 6-rectangular boss, a 7-inner tube welding press block, an 8-step groove, a 9-arc structure, a 10-pressing groove I, an 11-knurled small-head screw I, a 12-knurled high-head screw I, a 13-strip groove, a 14-outer tube welding press block, a 15-pressing groove II, a 16-knurled small-head screw II, a 17-knurled high-head screw II, an 18-flange welding press block, a 19-pressing groove III, a 20-knurled small-head screw III, a 21-knurled high-head screw III, a 22-deep groove, a 23-L-shaped boss, a 24-cylindrical pin and a 25-capillary tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify 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 invention. Furthermore, the terms "a," "an," "the" and "the" 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 defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
In order to solve the problems of the prior art, as shown in fig. 1 to 10, the present invention provides a clamp for welding a long tube set, the long tube set including a long arm outer tube 2, a long arm inner tube 3 and a long arm guide tube 4, the clamp for welding the long tube set including a base 1, and an upper clamping area and a side clamping area provided at the base 1;
the upper clamping area is uniformly provided with a plurality of welding compacting structures I for compacting the long-arm inner tube 3 and the long-arm guide tube 4 so as to realize the welding of the long-arm inner tube 3 and the long-arm guide tube 4;
the side clamping area is provided with a welding pressing structure II 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 tube 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 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, the welding compacting structure I comprises a rectangular boss 6 fixedly arranged on the base 1 and an inner pipe welding pressing block 7 detachably connected with the rectangular boss 6, the rectangular boss 6 is provided with a stepped groove 8 for placing an inner pipe and a guide pipe, the bottom of the stepped groove 8 is of a circular arc-shaped structure 9, and the inner pipe welding pressing block 7 is provided with a compacting groove I10 corresponding to the stepped groove 8. The inner pipe welding press block 7 is provided with a knurled small-head screw I11 for pressing the inner pipe and a knurled high-head screw I12 for being detachably connected with the rectangular boss 6 in a threaded fit manner. As a preferred embodiment, the width of the first pressing groove 10 is larger than the diameter of the long-arm inner tube 3 and smaller than the sum of the diameters of the long-arm inner tube 3 and the long-arm guide tube 4, so as to clamp the long-arm guide tube 4, prevent the first pressing groove 10 from contacting the long-arm inner tube 3, prevent repeated positioning, and improve clamping positioning accuracy.
In this embodiment, a plurality of rectangular bosses 6 are disposed in the upper clamping area, so that a longer positioning structure is divided into a plurality of positioning units, that is, the stepped grooves 8 are designed in a segmented manner, so that the non-positioning areas are increased, the manufacturing cost of the base 1 is reduced as a whole, and the precision is improved. Rectangular boss 6 and base 1 integrated into one piece processing, the ladder groove 8 of rectangular boss 6 sets up along the length direction of base 1, and ladder groove 8 height, width and bottom convex structure 9's curvature are confirmed according to rather than complex long arm inner tube 3 and long arm pipe 4 to the realization is to long arm inner tube 3 and long arm pipe 4's location. The first pressing groove 10 is in clearance fit with the long-arm inner tube 3 in the height direction, and the lower part of the step groove 8 is stepped, the bottom arc-shaped structure 9 of the step groove 8 and the first knurled small-head screw 11 are used for clamping the long-arm inner tube 3. The first pressing 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 pipe welding pressing block 7 is detachably connected with the rectangular boss 6 of the base 1 through the knurled high-head screw I12, so that the long-arm inner pipe 3 and the long-arm guide pipe 4 are quickly detached after being welded. When in actual use, the long arm inner tube 3 is firstly put into the step groove 8; then the long arm guide pipe 4 is put above the long arm inner pipe 3 in the step groove 8; then the first knurled high-head screw 12 is screwed down to enable the inner pipe welding pressing block 7 to press the long arm guide pipe 4, and the first knurled small-head screw 11 is screwed down 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 the welding mark points at the two sides of the inner pipe welding pressing block 7.
Specifically, the welding compacting 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 outside of the strip-shaped groove 13 is detachably provided with a plurality of outer tube welding press blocks 14, and the outer tube welding press blocks 14 are provided with second pressing grooves 15 corresponding to the strip-shaped groove 13 and used for pressing the long-arm outer cylinder 2. The outer tube welding press block 14 is provided with a knurled small-head screw II 16 for pressing the long-arm outer cylinder 2 in a threaded fit manner, and a knurled high-head screw II 17 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, the second pressing groove 15 is in clearance fit with the long-arm outer cylinder 2, repeated positioning is prevented, and clamping and positioning accuracy 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 as to position the long-arm outer cylinder 2. In actual use, the welded long arm guide pipe 4 and the long arm inner pipe 3 are placed into the long arm outer cylinder 2, at least one capillary 25 is adopted to compress the long arm inner pipe 3, the outer walls of the long arm guide pipe 4 and the long arm inner pipe 3 are attached to the inner wall of the long arm outer cylinder 2, the position of the long arm inner pipe 3 corresponds to a welding hole of the long arm outer cylinder 2, the long arm outer cylinder 2 is placed into the strip-shaped groove 13, and the long arm outer cylinder 2 is compressed through the knurled small-head screw II 16; finally, the long-arm outer cylinder 2 and the long-arm inner tube 3 are welded through the welding holes.
Specifically, the welding compacting structure III 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 compacting groove III 19 corresponding to the strip-shaped groove 13 and used for compacting the flange 5; the flange welding press 18 is provided with a knurled small head screw III 20 for pressing the flange 5 and a knurled high head screw III 21 for detachable connection with the base 1 in a threaded fit. The side of the strip-shaped groove 13, which is close to the flange welding press 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 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 groove 13 used 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 tail end face 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. And the third pressing groove 19 is in clearance fit with the flange 5 so as to prevent repeated positioning and improve clamping positioning precision.
In this embodiment, the whole of inner tube welding briquetting 7, outer tube welding briquetting 14, flange welding briquetting 18 is rectangle structure, and specific size is set for as required, and the central point of inner tube welding briquetting 7 is provided with along its width direction and compresses tightly groove one 10, and the central point of outer tube welding briquetting 14 is provided with along its width direction and compresses tightly groove two 15, and the central point of flange welding briquetting 18 is provided with along its width direction and compresses tightly groove three 19, and bar groove 13, compress tightly groove one 10, compress tightly groove two 15 and compress tightly groove three 19 are rectangular groove, all set up along the length direction of base 1. The center position of the inner pipe welding press block 7 is provided with a threaded hole along the height direction and is used for being matched with the knurled small-head screw I11 so as to press the long-arm inner pipe 3; the knurled small-head screws 11 are symmetrically arranged on two sides of the knurled small-head screw 11, and the knurled small-head screw 12 is in threaded fit with the inner tube welding press block 7 so as to realize detachable connection of the inner tube welding press block 7 and the rectangular boss 6. The center of the outer tube welding press block 14 is provided with a threaded hole along the height direction for being matched with the knurled small-head screw II 16 so as to press the long-arm outer cylinder 2; the knurling high head screw II 17 is symmetrically arranged on two sides of the knurling small head screw II 16, and the knurling high head screw II 17 is in threaded fit with the outer tube welding press block 14 so as to realize the detachable connection of the outer tube welding press block 14 and the base 1. The center of the flange welding press block 18 is provided with a threaded hole along the height direction for being matched with a knurled small-head screw III 20 so as to press the flange 5; the knurled small head screws III 20 are symmetrically arranged on two sides of the knurled small head screw III 21, and the knurled small head screw III 21 is in threaded fit with the flange welding press block 18 so as to realize detachable connection of the flange welding press 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 part of the long tube group; the tail end of the base 1 is provided with a pin hole, the pin hole is provided with a cylindrical pin 24 in interference fit, 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 respectively arranged, one cylindrical pin 24 is arranged up and down, the cylindrical pins 24 are in transition fit with the holes of the flange 5, and the positioning of the flange 5 is realized in a plane structure of the end face of the matched tail end.
In the invention, the two sides of the inner pipe welding pressing block 7 on the rectangular boss 6 are provided with the paired round holes and the long round holes as welding mark points, so that the function of marking the welding position is achieved, the welding position is clear, the welding is convenient, and the rapid and high-quality welding is realized.
In the invention, the diameter of each long pipe in the long pipe group needing clamping is 8mm, the length is more than 400mm, the long pipe is limited by the size of each long pipe in the long pipe group and the welding process, and deformation is very easy to occur in the welding process.
The invention relates to a using method of a clamp for welding long tube sets, which comprises the following steps:
taking four-pipe group welding as an example, the four-pipe group comprises two long-arm guide pipes 4, a long-arm inner pipe 3 and a long-arm outer cylinder 2:
firstly, placing two long-arm guide pipes 4 and one long-arm inner pipe 3 into a stepped groove 8 of a clamping area on a base 1, placing an inner pipe welding press block 7, fixing by adopting a knurled high-head screw I12, twisting a knurled small-head screw I11 to clamp the long-arm inner pipe 3, welding the long-arm inner pipe 3 and the outer wall of the long-arm guide pipe 4 according to a welding mark point, and welding the two long-arm guide pipes 4 and one long arm to form an inner pipe group; twisting the first knurled high-head screw 12 and the first knurled small-head screw 11, and disassembling the inner tube group;
secondly, the inner tube group is placed into the long-arm outer tube 2, and two capillaries 25 are tightly propped against the inner tube group, so that the outer walls of two long-arm guide tubes 4 and one long arm are contacted with the inner wall of the long-arm outer tube 2, and the outer tube group is formed by one long-arm outer tube 2, one long-arm inner tube 3, two long-arm guide tubes 4 and two capillaries 25;
thirdly, placing the outer tube group into a strip-shaped groove 13 of a clamping area on the side of the base 1, installing a hole of the flange 5 at a position corresponding to a cylindrical pin 24 at the tail end of the base 1, and inserting one end of the long-arm outer cylinder 2 into the flange 5; the outer tube welding press block 14 and the flange welding press block 18 are installed, specifically, the outer tube welding press block 14 is fixed through a knurled high head screw II 17, the long arm outer cylinder 2 is clamped through a knurled small head screw II 16, the flange welding press block 18 is fixed through a knurled high head screw III 21, and the flange 5 is clamped through a knurled small head screw III 20; welding the long-arm outer cylinder 2 and the long-arm inner tube 3 and welding the long-arm outer cylinder 2 and the flange 5 according to the welding mark points;
and finally, twisting the second knurled high head screw 17, the second knurled small head screw 16, the third knurled high head screw 21 and the third knurled small head screw 20, and taking down the welded long tube group.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. The fixture for welding the long tube group is formed by welding an outer tube group and a flange, the outer tube group is formed by welding a long arm outer tube and an inner tube group which is positioned in the long arm outer tube and is tightly propped by two capillary tubes, and the inner tube group is formed by welding a long arm inner tube and two long arm guide tubes positioned on the outer wall of the long arm inner tube;
the upper clamping area is uniformly provided with a plurality of first welding pressing structures, each first welding pressing structure comprises a rectangular boss fixedly arranged on the base and an inner pipe welding pressing block detachably connected with the rectangular boss, each rectangular boss is provided with a stepped groove for placing a long-arm inner pipe and two long-arm guide pipes, the bottom of each stepped groove is of a circular arc structure, and each inner pipe welding pressing block is provided with a first pressing groove corresponding to each stepped groove; the welding pressing structure is used for pressing the long arm inner tube and the long arm guide tube so as to realize the welding of the long arm inner tube and the long arm guide tube and form an inner tube group;
the side clamping area is provided with a welding compression structure II, the welding compression structure II comprises a strip-shaped groove arranged on the side surface of the base, a plurality of outer tube welding press blocks are detachably arranged outside the strip-shaped groove, the outer tube welding press blocks are provided with a compression groove II corresponding to the strip-shaped groove, and the strip-shaped groove is used for placing a long arm outer cylinder of an outer tube group and is fixed through the compression groove II;
the side clamping area is further provided with a welding pressing structure III, the welding pressing structure III comprises a flange welding pressing block which is detachably arranged outside the strip-shaped groove, the flange welding pressing block is provided with a pressing groove III corresponding to the strip-shaped groove, and the pressing groove III is used for pressing the flange so as to realize welding of the flange and the long arm outer cylinder of the outer pipe group to form a long pipe group.
2. A fixture for welding long pipe sets according to claim 1, wherein the inner pipe welding press block is provided with a knurled small-head screw one for pressing the long arm inner pipe and a knurled high-head screw one for detachable connection with the rectangular boss in a threaded fit manner.
3. A fixture for welding long tube sets according to claim 1, wherein the outer tube welding press block is provided with a second knurled small-head screw for pressing the long arm outer tube in a threaded fit manner, and a second knurled high-head screw for detachably connecting with the base.
4. A fixture for welding long pipe sets according to claim 1, wherein the flange welding press 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.
5. The fixture for welding long tube sets according to claim 4, wherein a deep groove perpendicular to the strip groove is formed on one side of the strip groove, which is close to the flange welding press block, so that the long arm outer cylinder and the flange can be welded conveniently.
6. The fixture for welding long tube sets according to claim 1, wherein the head end of the base is provided with an L-shaped boss for axially limiting the end of the long tube set; the tail end of the base is provided with a pin hole, the pin hole is provided with a cylindrical pin in an interference fit mode, and the cylindrical pin is in transition fit with a 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 CN113843573A (en) | 2021-12-28 |
| CN113843573B true CN113843573B (en) | 2024-03-26 |
Family
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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| CN113843573A (en) | 2021-12-28 |
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