CN117245216B - Pipe fitting laser welding machine and using method thereof - Google Patents

Pipe fitting laser welding machine and using method thereof Download PDF

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Publication number
CN117245216B
CN117245216B CN202311459240.3A CN202311459240A CN117245216B CN 117245216 B CN117245216 B CN 117245216B CN 202311459240 A CN202311459240 A CN 202311459240A CN 117245216 B CN117245216 B CN 117245216B
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CN
China
Prior art keywords
pipe fitting
pipe
laser welding
exhaust gas
cover
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CN202311459240.3A
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Chinese (zh)
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CN117245216A (en
Inventor
陈鑫欣
王达
裘来宾
熊强
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Zhejiang Iron King Precision Hardware Manufacturing Co ltd
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Zhejiang Iron King Precision Hardware Manufacturing Co ltd
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Priority to CN202311459240.3A priority Critical patent/CN117245216B/en
Publication of CN117245216A publication Critical patent/CN117245216A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to a pipe fitting laser welding machine, which comprises: the surface of the machine body is provided with a working table; the laser welding mechanism is arranged on the workbench surface and comprises a laser welding head capable of moving up and down; further comprises: the pipe fitting clamping mechanism is arranged on the machine body and comprises two pipe fitting clamping pieces symmetrically arranged at two sides of the laser welding head; the two pipe fitting clamping pieces can synchronously rotate through the synchronous driving piece to drive the two sections of the pipe fitting to simultaneously rotate, and compared with the prior art, the welding quality control device can prevent the phenomenon that the welding quality is influenced due to the fact that the two sections of the pipe fitting do not synchronously rotate, and improves the welding quality of the pipe fitting.

Description

Pipe fitting laser welding machine and using method thereof
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to a pipe fitting laser welding machine and a using method thereof.
Background
Laser welding is to use high-energy laser pulse to locally heat the material in micro-area, and the energy of laser radiation is guided to the internal diffusion of the material through heat transfer to melt the material to form a specific molten pool. The novel welding mode can realize spot welding, butt welding, stitch welding, seal welding and the like, has high depth-to-width ratio, small weld width, small heat affected zone, small deformation, high welding speed, smooth and attractive weld, no need of treatment or simple treatment after welding, high weld quality, no air hole, accurate control, small focusing light spot, high positioning precision and easy realization of automation;
in pipe fitting laser welding, pipe fitting laser welding machine that uses commonly includes the organism, install laser welding mechanism and pipe fitting fixture on the organism, current pipe fitting laser welding machine is general to the one end of pipe fitting through three-jaw chuck centre gripping to drive the pipe fitting and rotate in the welding process, this kind of mode makes the pipe fitting appear quality problem easily in the welding process, if two sections of pipe fitting rotate in the welding process and lead to weld quality to receive the influence in step, or the centre gripping effect of pipe fitting is unstable enough and the effect is influenced to weld quality, the waste gas that the laser welding machine produced in the welding process can't effectually collect the processing simultaneously, cause the phenomenon that production environment received the pollution easily, from this it is necessary to make the improvement.
Disclosure of Invention
The invention aims at solving the technical problems and provides a pipe fitting laser welding machine and a using method thereof, so as to improve the welding quality of pipe fittings and reduce the pollution of welding waste gas to the production environment.
In view of the above, the present invention provides a pipe fitting laser welding machine, comprising: the machine body is provided with a workbench surface on the surface; the laser welding mechanism is arranged on the workbench surface and comprises a laser welding head capable of moving up and down;
further comprises: the pipe fitting clamping mechanism is arranged on the machine body and comprises two pipe fitting clamping pieces symmetrically arranged at two sides of the laser welding head;
wherein, two pipe fitting holders accessible synchronous drive piece synchronous rotation is in order to drive two sections of pipe fitting and rotate simultaneously.
In this technical scheme, will wait welded pipe fitting and install on pipe fitting fixture when pipe fitting welding, thereby make two sections of pipe fitting can synchronous rotation in the welding process through two pipe fitting holders synchronous rotation, prevent that weld quality from receiving the phenomenon that influences because of two sections of unsynchronized rotations of pipe fitting from appearing, improved the welding quality of pipe fitting.
In the above technical solution, further, the pipe clamping member further includes:
the mounting seat is arranged on the workbench surface, and a through hole penetrating through the mounting seat along the axial direction is formed in the center of the mounting seat;
the rotating disc is rotatably arranged on the surface of the mounting seat, which faces the laser welding head, and a gear ring is arranged on the circumferential surface of the rotating disc;
the two arc-shaped plates are symmetrically arranged on two sides of the rotating disc;
the clamping ring consists of a plurality of ring sections, and the ring sections are connected through annular telescopic rods;
the telescopic driving part is arranged on the arc-shaped plate and used for driving the clamping ring to expand or contract;
wherein, the through-hole with perforation intercommunication is seted up at the center of rolling disc.
In the above technical scheme, further, two clamping rings can be arranged, the two clamping rings are axially distributed at intervals along the pipe fitting, and the two clamping rings can be connected through a connecting column.
In the above technical solution, further, the synchronous driving element further includes:
the driving motor is arranged in the machine body, and the driving end of the driving motor is connected with a worm;
the middle part of the rotating rod is provided with a worm wheel, and both ends of the rotating rod are provided with driving gears;
the rotating rod is rotatably arranged in the machine body, the worm wheel is meshed with the worm, and the driving gear can be meshed with the gear ring on the rotating disc.
In the above technical solution, further, the method further includes:
the waste gas treatment mechanism is arranged on the laser welding mechanism and is positioned at the rear side of the laser welding head;
wherein, the exhaust gas treatment mechanism can absorb and treat the exhaust gas generated during welding.
In the above technical solution, further, the exhaust gas treatment mechanism further includes:
the waste gas collecting cover is arranged at the rear side of the laser welding head and comprises an upper cover and a lower cover which are in a round table shape;
the inner cover is arranged in the upper cover and is coaxial with the waste gas collecting cover, the inner cover is in a round table shape, and a circle of annular baffle plates are coaxially arranged at the bottom end of the inner cover;
the fan is arranged on the upper cover;
the guide plate is arranged at the bottom end of the lower cover, is annular and is coaxially arranged with the lower cover, and can guide the air flow flowing along the inner wall of the lower cover to the inner cover;
the waste gas collecting cover and the inner cover are both open at two ends, a vortex air cavity can be formed between the inner wall of the upper cover and the outer wall of the inner cover, the fan can form vortex air flow in the vortex air cavity, two ends of the inner cover are respectively positioned in the upper cover and the lower cover, and the vortex air cavity is communicated with the lower cover.
In the above technical solution, further, the exhaust gas treatment mechanism further includes:
an exhaust gas filter disposed in the laser welding mechanism;
an exhaust pipe for communicating the exhaust gas filter and the exhaust gas collecting hood;
and the adsorption piece is arranged on the exhaust pipe and used for adsorbing particulate matters carried in the exhaust gas.
In the above technical solution, further, the adsorbing member further includes:
an opening provided on a wall of the exhaust pipe;
the mounting column is arranged at the center of the bottom surface of the opening, and the top end of the mounting column is provided with a motor;
the rotating block is arranged at the driving end of the motor;
the electrostatic adsorption plates are provided with two electrostatic adsorption plates, and the two electrostatic adsorption plates are symmetrically arranged on two sides of the rotating block;
a housing disposed on an outer wall of the exhaust pipe;
the contact is arranged at the top end of the mounting column and used for supplying power to the electrostatic adsorption plate;
the scrubbing brush can clean particles adsorbed on the electrostatic adsorption plate;
the collecting box is detachably arranged at the bottom end of the shell;
the opening is located in the shell, the adsorption surfaces of the two electrostatic adsorption plates are located in the exhaust pipe and the shell respectively, and the contact pieces are arranged on two sides of the bottom surface of the rotating block respectively.
In the above technical solution, further, the contact further includes:
the base is internally provided with a movable cavity, and the top end of the base is provided with a hole communicated with the movable cavity;
the contact column is movably arranged in the movable cavity, the top end of the contact column is spherical and extends out of the movable cavity through the hole, the bottom end of the contact column is provided with a contact part, and a cavity in the shape of a circular truncated cone is arranged in the contact column;
the springs are arranged in the movable cavity, and two ends of each spring are respectively connected with the bottom surface of the movable cavity and the bottom surface of the contact part;
the sliding grooves are symmetrically arranged on the inner walls of the two sides of the inner cavity, and guide blocks are arranged in the sliding grooves;
the two elastic rods are symmetrically arranged in a V shape and correspond to the positions of the two sliding grooves respectively;
the reed is arranged between the two guide blocks, and two ends of the reed are respectively connected with the two guide blocks;
a conductive block disposed on a side surface of the contact portion;
the groove is arranged on the inner side wall of the movable cavity, two elastic plates are symmetrically arranged in the groove, and the distance between the two elastic plates is gradually reduced from top to bottom;
the guide blocks are connected with the top ends of the elastic rods, the conductive blocks are at least two and oppositely arranged, the number of the grooves corresponds to that of the conductive blocks, the conductive blocks can move up and down along the grooves, and the conductive blocks are located between the two elastic plates.
The invention also discloses a using method suitable for the pipe fitting laser welding machine, and in the technical scheme, the method further comprises the following steps:
s1, installing a pipe fitting with welding on a pipe fitting clamping mechanism, and clamping and fixing the pipe fitting through a clamping ring;
s2, after the pipe fitting is fixed, the laser welding mechanism operates and drives the laser welding head to move to the welding position of the pipe fitting, and meanwhile, the rotating disc rotates to drive the clamping ring to rotate so that the pipe fitting rotates, and then welding operation is carried out;
s3, starting a fan after waste gas is generated in welding, and forming vortex airflow in a vortex wind cavity by the fan, so that suction force is generated at the center of the inner cover, and waste gas is sucked into the waste gas collecting cover;
s4, the waste gas is primarily filtered through the absorption part in the process of moving along the waste gas pipe, then the waste gas enters the waste gas filtering part to be secondarily filtered and then is discharged to the outside.
In the technical scheme, the pipe fitting laser welding machine is controlled by the method, the pipe fitting is convenient to clamp and good in clamping effect, meanwhile, the welding quality of the pipe fitting is high, waste gas generated in the welding process can effectively appear, and the production environment is not easy to be polluted by welding waste gas.
The beneficial effects of the invention are as follows:
1. the pipe fitting is not easily influenced by external factors in the welding process by the arrangement of the pipe fitting clamping mechanism, so that the welding quality of the pipe fitting is improved;
2. the arrangement of the waste gas treatment mechanism enables the waste gas generated in the welding process to be effectively collected, and prevents the production environment from being polluted by the welding waste gas;
3. particulate impurities contained in the waste gas can be continuously and effectively collected through the arrangement of the adsorption piece, and the treatment effect of the waste gas is improved;
4. the working stability of the electrostatic adsorption plate is improved through the arrangement of the contacts, and then the treatment effect of waste gas is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of the portion a of fig. 1 according to the present invention.
Fig. 3 is a schematic structural diagram of a synchronous driving member according to the present invention.
FIG. 4 is a schematic view of a pipe clamping member according to the present invention.
FIG. 5 is a schematic view of the exhaust gas collecting hood according to the present invention.
FIG. 6 is a schematic cross-sectional view of an exhaust gas collecting housing according to the present invention.
FIG. 7 is a schematic view of the structure of the adsorbing member of the present invention.
FIG. 8 is a schematic cross-sectional view of an absorbent member according to the present invention.
Fig. 9 is a schematic view of the top structure of the mounting post of the present invention.
Fig. 10 is a schematic view of the contact structure of the present invention.
The label in the figure is:
1-organism, 100-table top, 2-laser welding mechanism, 200-laser welding head, 3-pipe holder, 30-mount, 300-perforation, 31-rotating disk, 32-arc, 33-holding ring, 34-telescopic drive, 4-driving motor, 40-worm, 5-rotating rod, 50-worm wheel, 51-driving gear, 6-exhaust treatment mechanism, 60-exhaust collection cover, 600-upper cover, 601-lower cover, 61-inner cover, 610-annular baffle, 62-fan, 63-deflector, 64-swirl plenum, 65-exhaust pipe, 7-suction piece, 70-opening, 71-mounting post, 72-motor, 73-rotating block, 74-electrostatic suction plate, 75-housing, 76-plate brush, 77-collecting box, 8-contact, 80-base, 800-movable cavity, 81-contact post, 810-contact portion, 811-inner cavity, 82-spring, 83-chute, 84-deflector block, 85-elastic rod, 86-87-conductive block, 88-reed, 88-groove, elastic plate.
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.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Example 1:
the embodiment of the application provides a pipe fitting laser welding machine, include: the machine body 1, the surface of the machine body 1 is provided with a working table 100; the laser welding mechanism 2 is arranged on the workbench surface 100, and the laser welding mechanism 2 comprises a laser welding head 200 capable of moving up and down;
further comprises: the pipe fitting clamping mechanism is arranged on the machine body 1 and comprises two pipe fitting clamping pieces 3 symmetrically arranged at two sides of the laser welding head 200;
wherein, two pipe fitting holders 3 can be rotated synchronously through the synchronous driving piece so as to drive two sections of pipe fitting to rotate simultaneously.
Furthermore, the machine body 1 is provided with a conventional controller, such as a PLC controller, which controls the operation of the laser welding mechanism 2 and the pipe gripping mechanism, the laser welding mechanism 2 comprising a conventional mounting bracket or mounting housing.
In this embodiment, will wait welded pipe fitting to install on pipe fitting fixture when pipe fitting welding, thereby make two sections of pipe fitting can synchronous rotation in the welding process through two pipe fitting holder 3 synchronous rotation, prevent that weld quality from receiving the phenomenon that influences because of two sections of pipe fitting asynchronous rotation from appearing, improved the welding quality of pipe fitting.
Example 2:
the present embodiment provides a pipe fitting laser welding machine having the following technical features in addition to the technical scheme including the above embodiment, and the pipe fitting holder 3 further includes: the mounting seat 30, the mounting seat 30 is arranged on the working table 100, and a through hole 300 penetrating through the mounting seat 30 along the axial direction is arranged in the center of the mounting seat 30; a rotating disk 31, the rotating disk 31 rotating a surface provided on a side of the mount 30 facing the laser welding head, a circumferential surface of the rotating disk 31 being provided with a ring gear; the arc plates 32, the arc plates 32 are two, and the two arc plates 32 are symmetrically arranged on two sides of the rotating disc 31; the clamping ring 33, the clamping ring 33 is composed of a plurality of ring sections 330, and the ring sections 330 are connected with each other through annular telescopic rods; a telescopic driving part 34, the telescopic driving part 34 being arranged on the arc plate 32 for driving the clamping ring 33 to expand or contract;
wherein a through hole communicating with the through hole 300 is opened at the center of the rotating disc 31.
Two clamping rings 33 can be arranged, the two clamping rings 33 are axially distributed at intervals along the pipe fitting, and the two clamping rings 33 can be connected through a connecting column.
The synchronous drive further includes: the driving motor 4 is arranged in the machine body 1, and the driving end of the driving motor 4 is connected with a worm 40; the rotating rod 5, the middle part of the rotating rod 5 is provided with a worm wheel 50, and two ends of the rotating rod 5 are provided with driving gears 51;
wherein the rotating rod 5 is rotatably arranged in the machine body 1, the worm wheel 50 is meshed with the worm 40, and the driving gear 51 can be meshed with the gear ring on the rotating disc 31.
In this embodiment, when the pipe fitting is welded, two sections of the pipe fitting are respectively placed in two pipe fitting clamping pieces 3, the telescopic driving part 34 drives a plurality of ring sections on the clamping ring 33 to clamp the pipe fitting in the clamping ring 33, the clamping area can be effectively increased to improve the clamping stability by clamping the pipe fitting through the clamping ring 33, after the pipe fitting is clamped, the driving motor 4 drives the worm 40 to rotate so as to enable the worm wheel 50 to rotate, the rotating rod 5 rotates along with the rotation of the worm wheel 50 and drives the driving gear 51 to rotate, and the two driving gears 51 synchronously rotate so as to enable the rotating discs 31 of the two pipe fitting clamping pieces 3 to synchronously rotate in the welding process, so that the phenomenon that the quality of a welding seam is influenced due to the asynchronous rotation of the two sections of the pipe fitting is prevented, and the welding quality of the pipe fitting is improved.
Example 3:
the present embodiment provides a pipe fitting laser welding machine, which includes the following technical features in addition to the technical scheme of the above embodiment, and further includes: an exhaust gas treatment mechanism 6, the exhaust gas treatment mechanism 6 being provided on the laser welding mechanism 2 and being located at the rear side of the laser welding head 200;
wherein the exhaust gas treatment mechanism 6 can absorb and treat the exhaust gas generated during welding.
The exhaust gas treatment mechanism 6 further includes: an exhaust gas collecting cap 60, the exhaust gas collecting cap 60 being provided at the rear side of the laser welding head 200, the exhaust gas collecting cap 60 including an upper cap 600 and a lower cap 601 having a circular truncated cone shape; an inner cover 61, wherein the inner cover 61 is arranged in the upper cover 600, the inner cover 61 and the waste gas collecting cover 60 are coaxially arranged, the inner cover 61 is in a round table shape, and a circle of annular baffle 610 is coaxially arranged at the bottom end of the inner cover 61; a fan 62, the fan 62 being disposed on the upper cover 600; the deflector 63, the deflector 63 is disposed at the bottom end of the lower cover 601, the deflector 63 is annular and is coaxially disposed with the lower cover 601, and the deflector 63 can guide the air flow flowing along the inner wall of the lower cover 601 to the inner cover 61;
the exhaust gas collecting cover 60 and the inner cover 61 are both open at two ends, a vortex air chamber 64 can be formed between the inner wall of the upper cover 600 and the outer wall of the inner cover 61, the fan 62 can form vortex air flow in the vortex air chamber 64, two ends of the inner cover 61 are respectively located in the upper cover 600 and the lower cover 601, and the vortex air chamber 64 is communicated with the lower cover 601.
The exhaust gas treatment mechanism 6 further includes: an exhaust gas filter provided in the laser welding mechanism 2; an exhaust pipe 65, the exhaust pipe 65 for communicating the exhaust gas filtering member with the exhaust gas collecting cover 60; an adsorbing member 7, the adsorbing member 7 is provided on the exhaust pipe 65 for adsorbing particulate matter carried in the exhaust gas.
Moreover, the bottom end of the lower housing 601 is an exhaust gas inlet end, the taper of the upper housing 600 is smaller than the taper of the lower housing 601, and the exhaust gas filter may be a conventional welding exhaust gas treatment device, which is mounted in a mounting frame or a mounting case of the laser welding mechanism 2.
In this embodiment, when exhaust gas is generated during welding, the fan 62 is started to form a vortex airflow in the vortex air chamber 64 between the upper cover 600 and the inner cover, suction is generated at the center of the vortex airflow to suck air outside the exhaust gas collecting cover 60 into the exhaust gas collecting cover 60, the exhaust gas enters the exhaust gas collecting cover 60 along with the airflow and finally enters the exhaust gas pipe 65 through the inner cover, and therefore the exhaust gas cannot pass through the fan 62 during collecting, so that the fan 62 is prevented from being corroded or impacted by substances in the exhaust gas, the service life of the fan 62 is prolonged, meanwhile, the airflow in the vortex air chamber 64 can flow downwards towards the cover 601 and flow along the inner wall of the lower cover 601 under the action of the annular baffle 610, and after the airflow moves to the guide plate 63, the airflow can flow inwards towards the inner cover under the action of the guide plate 63 and is converged into the collected exhaust gas flow, so that an air curtain can be formed on the inner wall of the lower cover 601, impurities contained in the exhaust gas are prevented from adhering to the inner wall of the lower cover 601 to damage the exhaust gas collecting cover 60, and the service life of the exhaust gas collecting cover 60 is prolonged.
Example 4:
the present embodiment provides a pipe fitting laser welding machine, which has the following technical features in addition to the technical scheme including the above embodiment, and the adsorbing member 7 further includes: an opening 70, the opening 70 being provided in the wall of the exhaust pipe 65; the mounting column 71, the mounting column 71 is arranged at the center of the bottom surface of the opening 70, and the top end of the mounting column 71 is provided with a motor 72; a rotating block 73, the rotating block 73 being provided at the driving end of the motor 72; the electrostatic adsorption plates 74, wherein the electrostatic adsorption plates 74 are two, and the two electrostatic adsorption plates 74 are symmetrically arranged at two sides of the rotating block 73; a casing 75, the casing 75 being provided on an outer wall of the exhaust pipe 65; a contact 8, the contact 8 being provided at the top end of the mounting post 71 for supplying power to the electrostatic attraction plate 74; the scrubbing brush 76, the scrubbing brush 76 can clean the particles adsorbed on the electrostatic adsorption plate 74; a collecting box 77, the collecting box 77 being detachably provided at the bottom end of the housing 75;
wherein the opening 70 is located inside the casing, the adsorption surfaces of the two electrostatic adsorption plates 74 are located in the exhaust pipe 65 and the casing 75, and the two sides of the bottom surface of the rotating block 73 are respectively provided with a contact piece.
Moreover, the motor may be controlled by a controller, the controller may set the motor to rotate after a period of time passes, the motor may be a stepping motor, the contacts are connected with an external power source, the contacts on both sides of the bottom surface of the rotating block 73 are electrically connected with the electrostatic adsorption plates 74 on the corresponding sides, the scrubber 76 may be driven by a conventional reciprocating driving structure, such as a guide rail installed on the inner side wall of the housing 75, a slider installed on the guide rail, the scrubber 76 is installed on the slider, the slider reciprocates by a screw and screw nut mechanism, and the collecting box 77 may be installed at the bottom end of the housing 75 by a conventional detachable connection manner, such as by being connected to the bottom end of the housing 75 by a bolt.
In this embodiment, in the process that the collected exhaust gas moves along the exhaust gas pipe 65, when the exhaust gas passes through the adsorption element 7, the electrostatic adsorption plate 74 can adsorb particulate matter impurities contained in the exhaust gas, so as to perform preliminary filtration on the exhaust gas, after the electrostatic adsorption plate 74 works for a period of time, the controller controls the motor to switch positions of the two electrostatic adsorption plates 74, the electrostatic adsorption plate 74 with the particulate matter impurities adsorbed thereon moves from one side of the exhaust gas pipe 65 to the housing 75, the corresponding contact piece is separated from the contact point so as to power off the electrostatic adsorption plate 74, and then the scrubbing brush 76 cleans the particulate matter impurities adsorbed on the electrostatic adsorption plate 74.
Example 5:
the present embodiment provides a pipe fitting laser welding machine having the following technical features in addition to the technical scheme including the above embodiment, the contact 8 further includes: the base 80, there are movable chambers 800 in the base 80, the top of the base 80 has holes communicated with movable chamber 800; the contact column 81, the contact column 81 is movably arranged in the movable cavity 800, the top end of the contact column 81 is spherical and extends out of the movable cavity 800 through the hole, the bottom end of the contact column 81 is provided with a contact part 810, and an inner cavity 811 in a shape of a truncated cone is arranged in the contact column 81; the springs 82 are arranged in the movable cavity 800, and two ends of the springs 82 are respectively connected with the bottom surface of the movable cavity 800 and the bottom surface of the contact part 810; the sliding groove 83, the sliding groove 83 is provided with two guide blocks 84 which are symmetrically arranged on the inner walls of the two sides of the inner cavity 811, and the sliding groove 83 is internally provided with a guide groove; the two elastic rods 85 are arranged on the bottom surface of the movable cavity 800, and the two elastic rods 85 are symmetrically arranged in a V shape and correspond to the positions of the two sliding grooves 83 respectively; a reed 86, the reed 86 is disposed between the two guide blocks 84 and both ends of the reed 86 are respectively connected with the two guide blocks 84; a conductive block 87, the conductive block 87 being disposed at a side of the contact portion 810; the groove 88 is arranged on the inner side wall of the movable cavity 800, two elastic plates 89 are symmetrically arranged in the groove 88, and the distance between the two elastic plates 89 is gradually reduced from top to bottom;
wherein, the guide block 84 is connected with the top end of the elastic rod 85, the conductive block 87 has at least two parallel pairs, the number of the grooves 88 corresponds to that of the conductive block 87, the conductive block 87 can move up and down along the grooves 88, and the conductive block 87 is positioned between the two elastic plates 89.
In this embodiment, when the contact contacts the contact pad, the contact post 81 is extruded and moves into the movable cavity 800, so as to drive the spring to contract, the spring contracts to generate elastic force to push the contact post 81, so as to keep the contact post 81 in effective contact with the contact pad, meanwhile, the guide block 84 can move along the chute 83 to deform the two elastic rods 85, further ensuring the rebound performance of the contact post 81, reducing the phenomenon that effective conduction cannot be realized due to the incapability of rebound of the contact post 81, when the guide block 84 moves along the chute 83, the reed 86 is extruded, the rebound performance of the contact can be further ensured by the reed 86, when the contact post 81 moves into the movable cavity 800, the conductive block 87 moves simultaneously, and the two elastic plates 89 apply pressure to the conductive block 87 along with the movement of the conductive block 87, so as to further ensure the contact stability between the contact post 81 and the base, and further ensuring the stability of the circuit.
The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (5)

1. A pipe laser welder comprising:
the machine comprises a machine body (1), wherein a workbench surface (100) is arranged on the surface of the machine body (1);
the laser welding mechanism (2), the laser welding mechanism (2) is arranged on the workbench surface (100), and the laser welding mechanism (2) comprises a laser welding head (200) capable of moving up and down;
characterized by further comprising:
the pipe fitting clamping mechanism is arranged on the machine body (1) and comprises two pipe fitting clamping pieces (3) symmetrically arranged at two sides of the laser welding head (200);
wherein, the two pipe clamping pieces (3) can synchronously rotate through the synchronous driving piece so as to drive the two sections of the pipe to simultaneously rotate;
the pipe clamp (3) further comprises:
the mounting seat (30), the mounting seat (30) is arranged on the workbench surface (100), and a through hole (300) penetrating through the mounting seat (30) along the axial direction is arranged in the center of the mounting seat (30);
a rotating disc (31), wherein the rotating disc (31) is rotatably arranged on the surface of the mounting seat (30) facing the laser welding head, and a gear ring is arranged on the circumferential surface of the rotating disc (31);
the arc-shaped plates (32), the arc-shaped plates (32) are two, and the two arc-shaped plates (32) are symmetrically arranged on two sides of the rotating disc (31);
the clamping ring (33), the clamping ring (33) is composed of a plurality of ring segments (330), and the ring segments (330) are connected with each other through annular telescopic rods;
a telescopic driving part (34), wherein the telescopic driving part (34) is arranged on the arc-shaped plate (32) and is used for driving the clamping ring (33) to expand or contract;
wherein a through hole communicated with the perforation (300) is formed in the center of the rotating disc (31);
further comprises:
an exhaust gas treatment mechanism (6), wherein the exhaust gas treatment mechanism (6) is arranged on the laser welding mechanism (2) and is positioned at the rear side of the laser welding head (200);
wherein the waste gas treatment mechanism (6) can absorb and treat waste gas generated during welding;
the exhaust gas treatment mechanism (6) further includes:
an exhaust gas collection cover (60), wherein the exhaust gas collection cover (60) is arranged at the rear side of the laser welding head (200), and the exhaust gas collection cover (60) comprises an upper cover (600) and a lower cover (601) which are in a round table shape;
an inner cover (61), wherein the inner cover (61) is arranged in the upper cover (600), the inner cover (61) and the waste gas collecting cover (60) are coaxially arranged, the inner cover (61) is in a round table shape, and a circle of annular baffle (610) is coaxially arranged at the bottom end of the inner cover (61);
a fan (62), wherein the fan (62) is arranged on the upper cover (600);
the guide plate (63) is arranged at the bottom end of the lower cover (601), the guide plate (63) is annular and is coaxially arranged with the lower cover (601), and the guide plate (63) can guide air flow flowing along the inner wall of the lower cover (601) to the inner cover (61);
the exhaust gas collecting cover (60) and the inner cover (61) are both provided with openings at two ends, a vortex air cavity (64) can be formed between the inner wall of the upper cover (600) and the outer wall of the inner cover (61), the fan (62) can form vortex air flow in the vortex air cavity (64), two ends of the inner cover (61) are respectively positioned in the upper cover (600) and the lower cover (601), and the vortex air cavity (64) is communicated with the lower cover (601);
the exhaust gas treatment mechanism (6) further includes:
an exhaust gas filter element, which is arranged in the laser welding mechanism (2);
an exhaust pipe (65), the exhaust pipe (65) being adapted to communicate the exhaust gas filter and the exhaust gas collecting hood (60);
an adsorption member (7), the adsorption member (7) being provided on the exhaust pipe (65) for adsorbing particulate matter carried in the exhaust gas;
the adsorbing member (7) further comprises:
an opening (70), said opening (70) being arranged on the wall of the exhaust gas pipe (65);
the mounting column (71), the mounting column (71) is arranged at the center of the bottom surface of the opening (70), and the top end of the mounting column (71) is provided with a motor (72);
a rotating block (73), wherein the rotating block (73) is arranged at the driving end of the motor (72);
the electrostatic adsorption plates (74), the electrostatic adsorption plates (74) are two, and the two electrostatic adsorption plates (74) are symmetrically arranged at two sides of the rotating block (73);
-a housing (75), said housing (75) being arranged on an outer wall of the exhaust pipe (65);
a contact (8), wherein the contact (8) is arranged at the top end of the mounting column (71) and is used for supplying power to the electrostatic adsorption plate (74);
the scrubbing brush (76) can clean particles adsorbed on the electrostatic adsorption plate (74);
a collection box (77), wherein the collection box (77) is detachably arranged at the bottom end of the shell (75);
the opening (70) is located in the shell, adsorption surfaces of the two electrostatic adsorption plates (74) are located in the exhaust pipe (65) and the shell (75) respectively, and contact pieces are arranged on two sides of the bottom surface of the rotating block (73) respectively.
2. A pipe laser welder as defined in claim 1, wherein: two clamping rings (33) can be arranged, the two clamping rings (33) are axially distributed at intervals along the pipe fitting, and the two clamping rings (33) can be connected through a connecting column.
3. A pipe laser welder as defined in claim 2, wherein the synchronous drive further comprises:
the driving motor (4) is arranged in the machine body (1), and the driving end of the driving motor (4) is connected with a worm (40);
the device comprises a rotating rod (5), wherein a worm wheel (50) is arranged in the middle of the rotating rod (5), and driving gears (51) are arranged at two ends of the rotating rod (5);
the rotating rod (5) is rotatably arranged in the machine body (1), the worm wheel (50) is meshed with the worm (40), and the driving gear (51) can be meshed with a gear ring on the rotating disc (31).
4. A pipe laser welder according to claim 3, characterized in that the contact (8) further comprises:
the device comprises a base (80), wherein a movable cavity (800) is arranged in the base (80), and a hole communicated with the movable cavity (800) is formed in the top end of the base (80);
the contact column (81), the contact column (81) is movably arranged in the movable cavity (800), the top end of the contact column (81) is spherical and extends out of the movable cavity (800) through the hole, the bottom end of the contact column (81) is provided with a contact part (810), and a cavity (811) in the shape of a circular truncated cone is arranged in the contact column (81);
the springs (82) are arranged in the movable cavity (800), and two ends of the springs (82) are respectively connected with the bottom surface of the movable cavity (800) and the bottom surface of the contact part (810);
the sliding groove (83), the sliding groove (83) is provided with two inner walls which are symmetrically arranged on two sides of the inner cavity (811), and the sliding groove (83) is internally provided with a guide block (84);
the two elastic rods (85) are arranged on the bottom surface of the movable cavity (800), and the two elastic rods (85) are symmetrically arranged in a V shape and correspond to the positions of the two sliding grooves (83) respectively;
the spring plate (86) is arranged between the two guide blocks (84), and two ends of the spring plate (86) are respectively connected with the two guide blocks (84);
a conductive block (87), the conductive block (87) being disposed on a side surface of the contact portion (810);
the groove (88) is formed in the inner side wall of the movable cavity (800), two elastic plates (89) are symmetrically arranged in the groove (88), and the distance between the two elastic plates (89) is gradually reduced from top to bottom;
the guide block (84) is connected with the top end of the elastic rod (85), the conductive blocks (87) are at least two and symmetrically arranged, the number of the grooves (88) corresponds to that of the conductive blocks (87), the conductive blocks (87) can move up and down along the grooves (88), and the conductive blocks (87) are located between the two elastic plates (89).
5. A method of using a laser welder for pipe fittings of claim 4, comprising the steps of:
s1, mounting a pipe fitting to be welded on a pipe fitting clamping mechanism, and clamping and fixing the pipe fitting through a clamping ring (33);
s2, after the pipe fitting is fixed, the laser welding mechanism (2) operates and drives the laser welding head (200) to move to a pipe fitting welding position, and meanwhile, the rotating disc (31) rotates to drive the clamping ring (33) to rotate so that the pipe fitting rotates, and then welding operation is carried out;
s3, starting a fan (62) after waste gas is generated in welding, wherein the fan (62) forms vortex airflow in a vortex air cavity (64), so that suction force is generated at the center of an inner cover (61), and waste gas is sucked into a waste gas collecting cover (60);
s4, the waste gas is primarily filtered through the absorption member (7) in the process of moving along the waste gas pipe (65), and then the waste gas enters the waste gas filtering member to be secondarily filtered and then is discharged to the outside.
CN202311459240.3A 2023-11-03 2023-11-03 Pipe fitting laser welding machine and using method thereof Active CN117245216B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311459240.3A CN117245216B (en) 2023-11-03 2023-11-03 Pipe fitting laser welding machine and using method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311459240.3A CN117245216B (en) 2023-11-03 2023-11-03 Pipe fitting laser welding machine and using method thereof

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CN117245216B true CN117245216B (en) 2024-03-26

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180045972A (en) * 2016-10-26 2018-05-08 한산티티 주식회사 Bellows pipe production welding equipment
CN112915740A (en) * 2021-01-26 2021-06-08 武汉理工大学 Novel smoking room purifies device
CN215034669U (en) * 2021-04-09 2021-12-07 河北中通铁路配件有限公司 Automatic smoke abatement workstation is used in steel sheet welding
CN114101906A (en) * 2022-01-05 2022-03-01 黑龙江科技大学 Automatic laser welding device for pipe fittings
CN216758574U (en) * 2022-01-07 2022-06-17 贸冠建设工程有限公司 Pipeline welding set for building
JP2022158656A (en) * 2021-04-02 2022-10-17 株式会社アフレアー Optical instrument protection device and laser processing device
CN115815850A (en) * 2022-12-13 2023-03-21 赵伟 Laser welding auxiliary device
CN219211979U (en) * 2022-12-14 2023-06-20 安徽融达智能科技有限公司 Laser welding machine with smoke and dust processing function

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180045972A (en) * 2016-10-26 2018-05-08 한산티티 주식회사 Bellows pipe production welding equipment
CN112915740A (en) * 2021-01-26 2021-06-08 武汉理工大学 Novel smoking room purifies device
JP2022158656A (en) * 2021-04-02 2022-10-17 株式会社アフレアー Optical instrument protection device and laser processing device
CN215034669U (en) * 2021-04-09 2021-12-07 河北中通铁路配件有限公司 Automatic smoke abatement workstation is used in steel sheet welding
CN114101906A (en) * 2022-01-05 2022-03-01 黑龙江科技大学 Automatic laser welding device for pipe fittings
CN216758574U (en) * 2022-01-07 2022-06-17 贸冠建设工程有限公司 Pipeline welding set for building
CN115815850A (en) * 2022-12-13 2023-03-21 赵伟 Laser welding auxiliary device
CN219211979U (en) * 2022-12-14 2023-06-20 安徽融达智能科技有限公司 Laser welding machine with smoke and dust processing function

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