CN117505666A - Machining device and machining method suitable for nested composite pipe - Google Patents
Machining device and machining method suitable for nested composite pipe Download PDFInfo
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- CN117505666A CN117505666A CN202311785309.1A CN202311785309A CN117505666A CN 117505666 A CN117505666 A CN 117505666A CN 202311785309 A CN202311785309 A CN 202311785309A CN 117505666 A CN117505666 A CN 117505666A
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- 239000002131 composite material Substances 0.000 title claims abstract description 91
- 238000003754 machining Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000003466 welding Methods 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000013519 translation Methods 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 150000002739 metals Chemical class 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
- B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating cutters
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/0093—Working by laser beam, e.g. welding, cutting or boring combined with mechanical machining or metal-working covered by other subclasses than B23K
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the field of pipeline processing, and particularly relates to a processing device and a processing method suitable for a nested composite pipe. In the machining device, the first machining device and the second machining device at the two ends of the installation position can synchronously rotate and translate, so that the first reaming assembly and the second reaming assembly can carry out machining reaming on the end parts of the pipelines, the automation degree is high, the reaming of the end parts of the double-side composite pipelines can be automatically carried out, and the machining efficiency of the pipelines is improved; according to the invention, the function automation is realized without manual assistance, and the labor cost is reduced; the machining method can also carry out synchronous rotation seal welding of the nested composite pipe when reaming is completed, so that sliding between two layers of metals in the seal welding process is avoided, and meanwhile, the defect that air holes and unfused holes are generated in the welding process can be overcome, so that the nested composite pipe keeps good corrosion resistance.
Description
Technical Field
The invention belongs to the technical field of pipeline processing, and particularly relates to a processing device and a processing method suitable for nested composite pipes.
Background
The composite pipe is widely applied to industry, mining industry and daily life due to the advantages of good corrosion resistance, high impact resistance, high tensile strength and the like. Composite tubing generally includes a base pipe and a liner pipe as a hollow tubing requiring reaming and welding procedures during processing.
The existing reaming process is mostly finished by single machine and single process operation, when the reaming operation is carried out on the pipe, the end part of the pipe is usually manually heated or the end part of the pipe is manually knocked in for reaming, so that the labor intensity is high, workers can easily touch the heated end of the pipe in the process to be scalded, the operation is at certain risk and is very complicated, and the machining efficiency is low.
The existing welding method has the following problems in the end welding of the nested composite pipe: at present, the rotating device of the traditional welding device only aims at the rotating welding seam welding of a single steel pipe, the synchronous rotating seal welding of the nested composite pipe is not performed, and the situation that two layers of metals slide in the welding process exists; meanwhile, pores and unfused defects are easy to generate in the welding process, so that the consumption of materials and time is huge.
Disclosure of Invention
The invention aims to solve the defects of the prior art and designs a processing device and a processing method suitable for a nested composite pipe.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the processing device suitable for the nested composite pipe comprises a bracket, wherein a mounting position is arranged on the bracket and used for mounting the nested composite pipe, and two sets of first processing devices and second processing devices which are used for processing are arranged on two sides of the mounting position; the first machining device comprises a first base arranged on the bracket, a first rotary power assembly and a first reaming assembly are arranged on the first base, and the first rotary power assembly is connected with the first reaming assembly; a first translation power device is arranged on the side wall of the first base; the first rotary power assembly drives the first reaming assembly to rotate, the second machining device comprises a second base arranged on the bracket, a second rotary power assembly is arranged on the second base, and the second rotary power assembly is connected with the second reaming assembly; a second flat moving force device is arranged on the side wall of the second base; the second rotary power assembly drives the second reaming assembly to rotate, the first translation power device can enable the first base to translate along the axial direction of the central shaft of the nested composite pipe, and the first reaming assembly stretches into the nested composite pipe and contacts the nested composite pipe, so that the end part of the composite pipe forms a horn-shaped section; the second translational force device can enable the second base to translate along the axial direction of the central shaft of the nested composite tube, and the second reaming assembly stretches into the nested composite tube and contacts the nested composite tube, so that the end part of the composite tube forms a horn-shaped section.
Further, the first rotary power assembly comprises a first rotary power device and a first rotary shaft, a first radial bearing seat and a first rotary shaft fixing sleeve are arranged on the first rotary shaft, and the first rotary shaft fixing sleeve is positioned in the middle of the first rotary shaft and is coaxial with the first rotary shaft; the first radial bearing seat and the first rotating shaft are coaxial and are positioned at two ends of the first rotating shaft; the second rotary power assembly comprises a second rotary power device and a second rotary shaft, a second radial bearing seat and a second rotary shaft fixing sleeve are arranged on the second rotary shaft, and the second rotary shaft fixing sleeve is positioned in the middle of the second rotary shaft and is coaxial with the second rotary shaft; the second radial bearing seat is concentric with the second rotating shaft and is positioned at two ends of the second rotating shaft.
Further, the first rotary power assembly comprises a first rotary power device and a first rotary shaft, a first radial bearing seat and a first rotary shaft fixing sleeve are arranged on the first rotary shaft, and the first rotary shaft fixing sleeve is positioned in the middle of the first rotary shaft and is coaxial with the first rotary shaft; the first radial bearing seat and the first rotating shaft are coaxial and are positioned at two ends of the first rotating shaft; the second rotary power assembly comprises a second rotary power device and a second rotary shaft, a second radial bearing seat and a second rotary shaft fixing sleeve are arranged on the second rotary shaft, and the second rotary shaft fixing sleeve is positioned in the middle of the second rotary shaft and is coaxial with the second rotary shaft; the second radial bearing seat is concentric with the second rotating shaft and is positioned at two ends of the second rotating shaft.
Further, the end, close to the first rotary power device, of the first rotary shaft is a gear, and the other end of the first rotary shaft is connected with the first reaming assembly; the first rotating shaft and the first rotating shaft fixing sleeve are fixed by adopting a bearing; the first rotating shaft fixing sleeve is hollow and cylindrical in the interior, and double bearings are arranged in the interior; the end, close to the second rotary power device, of the second rotary shaft is a gear, and the other end of the second rotary shaft is connected with a second reaming assembly; the second rotating shaft and the second rotating shaft fixing sleeve are fixed by adopting a bearing; the second rotating shaft fixing sleeve is hollow and cylindrical in the inside, and double bearings are arranged in the second rotating shaft fixing sleeve.
Further, the first rotary power device, the first rotary shaft and the first reaming assembly are positioned on the same axis; the second rotary power device, the second rotary shaft and the second reaming assembly are positioned on the same axis.
Further, the lower end of the bracket is provided with an equipment base; the two ends of the first base are provided with first guide rail pressing plates, and the two ends of the second base are provided with second guide rail pressing plates; the support is also provided with a sliding rail, and the first base and the second base move in a translational mode on the sliding rail.
Further, the first reaming assembly is provided with a first upper section part and a first lower section part, and the first upper section part and the first lower section part form a certain included angle with a horizontal line; the second reaming assembly is provided with a second upper section part and a second lower section part, and the second upper section part and the second lower section part form a certain included angle with the horizontal line.
Further, the first reaming assembly and the second reaming assembly are of a detachable hollow round platform structure;
further, the processing device is also provided with a lifting mechanism capable of lifting the nested composite pipe.
The invention also provides a processing method suitable for the nested composite pipe, which comprises a laser welding device and comprises the following steps:
installing a nested composite pipe to be processed on an installation position of a processing device, and lifting the nested composite pipe to the same axis as the processing device by a lifting mechanism;
simultaneously starting a first translation power device and a second translation force device, enabling the first reaming assembly and the second reaming assembly to move towards the inside of the nested composite tube, and ejecting the end part of the nested composite tube out of the bell mouth;
simultaneously starting a first rotary power device and a second rotary power device, and driving the nested composite pipe to rotate by the first reaming assembly and the second reaming assembly;
the laser welding device moves above the end part of the nested composite tube, scans and welds the rotating nested composite tube;
after the welding is completed, the first translational power device and the second translational power device retract to the initial positions.
The embodiment of the invention has the following beneficial effects:
in the machining device, the first machining device and the second machining device at the two ends of the installation position can synchronously translate, so that the first reaming assembly and the second reaming assembly can carry out machining reaming on the end parts of the pipelines, the automation degree is high, the reaming of the end parts of the double-side composite pipelines can be automatically carried out, and the machining efficiency of the pipelines is improved; the whole reaming process is completed by the equipment, so that the function automation is realized without manual assistance, and the labor cost is reduced; the machining method can finish reaming and simultaneously carry out synchronous rotation seal welding of the nested composite pipe, so that sliding between two layers of metals in the seal welding process is avoided, and meanwhile, the defect that air holes and unfused holes are generated in the welding process can be overcome, so that the nested composite pipe keeps good corrosion resistance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a left side view of the present invention;
FIG. 5 is a drawing of the expanding process of the present invention;
FIG. 6 is an experimental diagram of a welding method of the present invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, the invention provides a processing device suitable for nested composite pipes, which comprises a bracket, wherein a mounting position is arranged on the bracket 1, the mounting position is used for mounting a nested composite pipe 5, and two sets of first processing devices and second processing devices for processing are arranged on two sides of the mounting position; the first machining device comprises a first base 3 arranged on the bracket 1, a first rotary power assembly and a first reaming assembly 31 are arranged on the first base 3, and the first rotary power assembly is connected with the first reaming assembly 31; a first translation power device 4 is arranged on the side wall of the first base 3; the first rotary power assembly drives the first reaming assembly 31 to rotate; the second machining device comprises a second base 6 arranged on the bracket 1, a second rotary power assembly and a second reaming assembly 61 are arranged on the second base 6, and the second rotary power assembly is connected with the second reaming assembly 61; a second flat moving force device 7 is arranged on the side wall of the second base 6; the second rotary power assembly drives the second reaming assembly 61 to rotate; the first translation power device 4 can enable the first base 3 to translate along the axial direction of the central shaft of the nested composite tube 5, and the first reaming assembly 31 extends into the nested composite tube 5 and contacts with the nested composite tube, so that the end part of the composite tube 5 forms a horn-shaped section; the second translation force device 7 can translate the second base 6 along the axial direction of the central shaft of the nested composite tube 5, and the second reaming assembly 61 extends into the nested composite tube 5 and contacts the second reaming assembly, so that the end of the composite tube 5 forms a horn-shaped section. In the machining device, the first machining device and the second machining device at the two ends of the installation position can synchronously translate, so that the first reaming assembly and the second reaming assembly can carry out machining reaming on the end parts of the pipelines, the automation degree is high, the reaming of the end parts of the double-side composite pipelines can be automatically carried out, and the machining efficiency of the pipelines is improved; the whole reaming process is completed by the equipment, manual assistance is not needed, the function automation is realized, and the labor cost is reduced.
Further, the first rotary power assembly includes a first rotary power device 32 and a first rotary shaft 30, a first radial bearing seat 302 and a first rotary shaft fixing sleeve 301 are disposed on the first rotary shaft 30, and the first rotary shaft fixing sleeve 301 is located in the middle of the first rotary shaft 30 and is coaxial with the first rotary shaft; the first radial bearing seat 302 is coaxial with the first rotating shaft 30 and is positioned at two ends of the first rotating shaft 30; the second rotary power assembly comprises a second rotary power device 62 and a second rotary shaft 60, a second radial bearing seat 602 and a second rotary shaft fixing sleeve 601 are arranged on the second rotary shaft 60, and the second rotary shaft fixing sleeve 601 is positioned in the middle of the second rotary shaft 60 and is coaxial with the second rotary shaft 60; the second radial bearing seat 602 is concentric with the second rotation shaft 60 and is located at two ends of the second rotation shaft 60.
The first and second rotating shafts 30, 60 are preferably cylindrical solid in shape, the first rotary power unit 32 transmitting rotational force to the first reamer assembly 31 through the first rotating shaft 30, and the second rotary power unit 32 transmitting rotational force to the second reamer assembly 61 through the second rotating shaft 30. The first radial bearing seat 302 and the second radial bearing seat 602 may maintain stability during translation and may also perform radial limiting.
Further, the end of the first rotating shaft 30, which is close to the first rotating power device 32, is a gear, and the other end is connected with the first reaming assembly 31; the first rotating shaft 30 and the first rotating shaft fixing sleeve 301 are fixed by adopting bearings; the first rotation shaft fixing sleeve 301 is hollow and cylindrical, and a double bearing is arranged in the first rotation shaft fixing sleeve; the end of the second rotating shaft 60, which is close to the second rotating power device 62, is provided with a gear, and the other end of the second rotating shaft is connected with a second reaming assembly 61; the second rotating shaft 60 and the second rotating shaft fixing sleeve 601 are fixed by adopting bearings; the second rotation shaft fixing sleeve 601 is hollow and cylindrical in the inside, and double bearings are arranged in the inside.
The first and second rotation shaft fixing sleeves 301 and 601 may fix the first and second rotation shafts 30 and 60, respectively, and a double bearing provided inside may serve to maintain a central position of the shaft, serving to support the rotation shafts. The other end of the first rotary shaft 30 is connected to a first reamer assembly 31, preferably by screws, which are circumferentially arranged. The other end of the second rotary shaft 30 is connected to a second reamer assembly 31, preferably by screws, which are circumferentially arranged.
Further, as shown in fig. 2, the first translation power device 4 further includes a first translation device fixing base 42 and a first translation device head mounting seat 41, where the first base 3, the first translation device fixing base 42, the first translation power device 4 and the first translation device head mounting seat 41 are located on the same axis; the second translational force device 7 further includes a second translational device fixing base 72 and a second translational device head mount 71, where the second base 6, the second translational device fixing base 72, the second translational force device 7, and the second translational device head mount 71 are located on the same axis. When the two translation power devices are positioned on the same axis, the translation process is smoother and more stable, and the first translation power device 4 and the second translation power device 7 are preferably push-pull oil cylinder devices with the stroke of 600mm.
Further, as shown in fig. 2, the first rotation power device 32, the first rotation shaft 30, and the first reaming assembly 31 are located on the same axis; the second rotary power unit 62, the second rotary shaft 60, and the second reamer assembly 61 are located on the same axis. The first rotary power unit 32 and the second rotary power unit 62 preferably adopt variable-frequency speed-regulating motors, and the rotating speeds are adjustable; when the rotation is on the same axis, the rotation process is smoother and more stable.
Further, the lower end of the bracket 1 is provided with an equipment base 2; the two ends of the first base 3 are provided with first guide rail pressing plates 9, and the two ends of the second base 6 are provided with second guide rail pressing plates 8; the support 1 is also provided with a sliding rail, and the first base 3 and the second base 6 move in a translational manner on the sliding rail. The first guide rail pressing plate 9 and the second guide rail pressing plate 8 can keep stability in the translation process, and the first base and the second base are not easy to generate dislocation movement in the translation process; the first base 3 and the second base 6 perform translational movement along the central axis of the nested composite tube on the sliding rail, and the translational process is more stable and smooth by matching with the first guide rail pressing plate 9 and the second guide rail pressing plate 8.
Further, the first reaming assembly 31 is provided with a first upper section 3101 and a first lower section 3102, and the first upper section 3101 and the first lower section 3102 form a certain angle with the horizontal line; the second reaming assembly 61 is provided with a second upper section 6101 and a second lower section 6102, where the second upper section 6101 and the second lower section 6102 form a certain angle with the horizontal line.
Preferably, the included angle is 45 degrees, as shown in fig. 3, when the end of the pipe is reamed, the included angle between the bell mouth sections is 90 degrees. The nested composite tubular 5 comprises a base pipe 51 and a liner 52.
Further, the first reaming assembly 31 and the second reaming assembly 61 are detachable hollow round structures; because of the detachable characteristic, the device can be suitable for machining and reaming pipelines with different specifications and models, and can also customize specific reaming assembly types (a plurality of tubular common reaming assemblies) according to customer needs, thereby being convenient to use and reducing cost.
Furthermore, the processing device is further provided with a lifting mechanism capable of lifting the nested composite pipe 5, and the lifting mechanism can accurately align the nested composite pipe and the processing device so that the nested composite pipe and the processing device are positioned on the same axis, so that the subsequent welding process is finer and more accurate.
The present invention also provides a method of machining a machining apparatus for nested composite tubes, comprising a laser welding apparatus 10 (see fig. 6), comprising the steps of:
s1, installing a nested composite pipe 5 to be processed on an installation position of a processing device, and lifting the nested composite pipe 5 to the same axis as the processing device by a lifting mechanism;
s2, simultaneously starting a first translation power device 4 and a second translation force device 7, enabling the first reaming assembly and the second reaming assembly to move towards the inside of the nested composite tube 5, and ejecting the end part of the nested composite tube 5 out of the bell mouth; specifically, after the first reaming assembly and the second reaming assembly enter the proper positions inside the nested composite tube 5, the first upper section 3101 and the first lower section 3102 on the first reaming assembly 31 eject the end of the nested composite tube 5 out of the trumpet-shaped section, and the second upper section 6101 and the first lower section 6102 on the second reaming assembly 61 eject the end of the nested composite tube 5 out of the trumpet-shaped section, each section preferably forming a 45-degree angle with the horizontal line (refer to fig. 3);
s3, simultaneously starting a first rotary power device and a second rotary power device, and enabling the first reaming assembly and the second reaming assembly to drive the nested composite pipe 5 to rotate; specifically, the first rotary power device and the second rotary power device drive the base pipe 51 and the liner pipe 52 to synchronously rotate, and the rotation direction is positive rotation;
s4, the laser welding device moves to the position above the end part of the nested composite tube 5, and scans and welds the rotating nested composite tube 5; specifically, the laser scans the bonding lines at the two ends of the nested composite tube 5 rotated by the rotating shaft, the laser collects position data information after scanning according to a set angle, and then the position information is sent to the laser welding device, and the welding device calculates track deviation according to a set program to execute welding.
And S5, after welding is completed, the first translation power device 4 and the second translation power device 7 retract to the initial positions.
In the machining device, the first machining device and the second machining device at the two ends of the installation position can synchronously translate, so that the first reaming assembly and the second reaming assembly can carry out machining reaming on the end parts of the pipelines, the automation degree is high, the reaming of the end parts of the double-side composite pipelines can be automatically carried out, and the machining efficiency of the pipelines is improved; the whole reaming process is completed by the equipment, so that the function automation is realized without manual assistance, and the labor cost is reduced; the machining method can finish reaming and simultaneously carry out synchronous rotation seal welding of the nested composite pipe, so that sliding between two layers of metals in the seal welding process is avoided, and meanwhile, the defect that air holes and unfused holes are generated in the welding process can be overcome, so that the nested composite pipe keeps good corrosion resistance.
It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the invention. Furthermore, references to orientations or positional relationships of the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention.
While the foregoing is directed to the preferred embodiments of the present invention, it should be noted that modifications and variations could be made by those skilled in the art without departing from the principles of the present invention, and such modifications and variations are to be regarded as being within the scope of the invention.
Claims (10)
1. The processing device suitable for the nested composite pipe is characterized by comprising a bracket (1), wherein the bracket (1) is provided with a mounting position for mounting the nested composite pipe (5), and two sets of first processing devices and second processing devices for processing are arranged on two sides of the mounting position;
the first machining device comprises a first base (3) arranged on the bracket (1), a first rotary power assembly and a first reaming assembly (31) are arranged on the first base (3), and the first rotary power assembly is connected with the first reaming assembly (31); a first translation power device (4) is arranged on the side wall of the first base (3), and the first rotation power component drives the first reaming component (31) to rotate;
the second machining device comprises a second base (6) arranged on the bracket (1), a second rotary power assembly and a second reaming assembly (61) are arranged on the second base (6), and the second rotary power assembly is connected with the second reaming assembly (61); a second flat moving force device (7) is arranged on the side wall of the second base (6), and the second rotary power assembly drives the second reaming assembly (61) to rotate;
the first translation power device (4) can enable the first base (3) to translate along the axial direction of the central shaft of the nested composite tube (5), and the first reaming assembly (31) stretches into the nested composite tube (5) and contacts the nested composite tube, so that the end part of the composite tube (5) forms a horn-shaped section;
the second translational force device (7) can enable the second base (6) to translate along the axial direction of the central shaft of the nested composite tube (5), and the second reaming assembly (61) stretches into the nested composite tube (5) and contacts with the nested composite tube, so that the end part of the composite tube (5) forms a horn-shaped section.
2. The machining device suitable for nested composite tubes according to claim 1, wherein the first rotary power assembly comprises a first rotary power device (32) and a first rotary shaft (30), a first radial bearing seat (302) and a first rotary shaft fixing sleeve (301) are arranged on the first rotary shaft (30), and the first rotary shaft fixing sleeve (301) is positioned in the middle of the first rotary shaft (30) and is coaxial with the first rotary shaft; the first radial bearing seat (302) is coaxial with the first rotating shaft (30) and is positioned at two ends of the first rotating shaft (30); the second rotary power assembly comprises a second rotary power device (62) and a second rotary shaft (60), a second radial bearing seat (602) and a second rotary shaft fixing sleeve (601) are arranged on the second rotary shaft (60), and the second rotary shaft fixing sleeve (601) is positioned in the middle of the second rotary shaft (60) and is coaxial with the second rotary shaft; the second radial bearing seat (602) is concentric with the second rotating shaft (60) and is positioned at two ends of the second rotating shaft (60).
3. A machining device suitable for nested composite tubes according to claim 2, wherein the end of the first rotary shaft (30) close to the first rotary power device (32) is a gear, and the other end is connected with the first reaming assembly (31); the first rotating shaft (30) and the first rotating shaft fixing sleeve (301) are fixed by adopting a bearing; the first rotating shaft fixing sleeve (301) is hollow and cylindrical in the interior, and double bearings are arranged in the interior; the end, close to the second rotary power device (62), of the second rotary shaft (60) is a gear, and the other end of the second rotary shaft is connected with a second reaming assembly (61); the second rotating shaft (60) and the second rotating shaft fixing sleeve (601) are fixed by adopting bearings; the second rotating shaft fixing sleeve (601) is hollow and cylindrical in the inside, and double bearings are arranged in the inside.
4. A processing device suitable for nested composite tubes according to claim 3, wherein the first translational power device (4) further comprises a first translational device fixed base (42), a first translational device head mount (41), the first base (3), the first translational device fixed base (42), the first translational power device (4), the first translational device head mount (41) being located on the same axis; the second translational force device (7) further comprises a second translational device fixing base (72) and a second translational device head mounting seat (71), and the second base (6), the second translational device fixing base (72), the second translational force device (7) and the second translational device head mounting seat (71) are positioned on the same axis.
5. A machining device suitable for nested composite tubes according to claim 4, characterized in that said first rotary power device (32), first rotary shaft (30), first reaming assembly (31) are located on the same axis; the second rotary power device (62), the second rotary shaft (60) and the second reaming assembly (61) are positioned on the same axis.
6. A processing device suitable for nested composite tubes according to claim 1, characterized in that the lower end of the support (1) is provided with a device base (2); the two ends of the first base (3) are provided with first guide rail pressing plates (9), and the two ends of the second base (6) are provided with second guide rail pressing plates (8); the support (1) is also provided with a sliding rail, and the first base (3) and the second base (6) move in a translational mode on the sliding rail.
7. The machining device for nested composite tubes according to claim 1, wherein the first reaming assembly (31) is provided with a first upper section (3101) and a first lower section (3102), the first upper section (3101) and the first lower section (3102) being at an angle to the horizontal;
the second reaming assembly (61) is provided with a second upper section part (6101) and a second lower section part (6102), and the second upper section part (6101) and the second lower section part (6102) form a certain included angle with the horizontal line.
8. A machining device suitable for nested composite tubes according to claim 4, wherein the first and second reaming assemblies (31, 61) are removable hollow circular truncated cones.
9. A processing device for nested composite tubes according to claim 1, characterized in that the processing device is further provided with a lifting mechanism for lifting the nested composite tubes (5).
10. A method of machining a machining device for nested composite tubes according to any one of claims 1 to 9, further comprising a laser welding device (10), comprising the steps of:
s1, installing a nested composite pipe (5) to be processed on an installation position of a processing device, and lifting the nested composite pipe (5) to the same shaft center as the processing device by a lifting mechanism;
s2, simultaneously starting a first translation power device (4) and a second translation power device (7), enabling a first reaming assembly (31) and a second reaming assembly (61) to move towards the inside of the nested composite tube (5), and ejecting the end part of the nested composite tube (5) out of a bell mouth;
s3, simultaneously starting a first rotary power device (32) and a second rotary power device (62), and enabling the first reaming assembly (31) and the second reaming assembly (61) to drive the nested composite pipe (5) to rotate;
s4, the laser welding device (10) moves to the position above the end part of the nested composite tube (5), and scans and welds the rotating nested composite tube (5);
s5, after welding is completed, the first translation power device (4) and the second translation power device (7) retract to the initial positions.
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