CN110026680B - Prevent winding laser welding machine of optic fibre - Google Patents
Prevent winding laser welding machine of optic fibre Download PDFInfo
- Publication number
- CN110026680B CN110026680B CN201910358488.8A CN201910358488A CN110026680B CN 110026680 B CN110026680 B CN 110026680B CN 201910358488 A CN201910358488 A CN 201910358488A CN 110026680 B CN110026680 B CN 110026680B
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- laser
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- positioning
- collimation
- electric rotating
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- 238000003466 welding Methods 0.000 title claims abstract description 49
- 238000004804 winding Methods 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 239000013307 optical fiber Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims description 57
- 230000001681 protective effect Effects 0.000 claims description 24
- 239000000498 cooling water Substances 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- B23K26/24—Seam 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
- B23K26/282—Seam welding of curved planar seams of tube sections
-
- 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
- B23K26/70—Auxiliary operations or equipment
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser welding machine for preventing optical fibers from winding, which comprises a machine case, an electric rotating table and a clamping and positioning device, wherein the electric rotating table and the clamping and positioning device are arranged on the machine case, the clamping and positioning device comprises a positioning frame and a pipeline clamping mechanism arranged above the center of the electric rotating table, the center of the electric rotating table below the pipeline clamping mechanism is provided with a pipe joint positioning device, the electric rotating table is provided with a laser welding device through a fine adjustment mechanism, the laser welding device comprises a laser collimation assembly and a laser focusing assembly, the laser collimation assembly is connected with a laser generator, and the laser collimation assembly is vertically connected with the laser focusing assembly and rotates freely relative to the laser focusing assembly. Because the laser collimation assembly can freely rotate relative to the laser focusing assembly, when the laser focusing assembly rotates around a gas pipe to be welded, the laser collimation assembly can reversely rotate relative to the laser focusing assembly under the action of inertia and static friction force, so that the direction of the laser collimation assembly is kept unchanged, and therefore optical fiber winding and self-twisting can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a laser welding machine for preventing optical fibers from winding.
Background
When the existing gas pipe laser welding machine is used for welding a gas pipe and a pipe joint, the gas pipe and the pipe joint are generally rotated or a laser welding device is used for rotating around the gas pipe to weld a joint in one circle. However, the welding mode of the rotating gas pipe and the pipe joint is easy to swing in the rotating process due to the longer length of the gas pipe, and is easy to cause bending deformation, and particularly the corrugated pipe is easy to break; the mode of welding the laser welding device around the gas pipe rotating ring can lead to the phenomena of winding and self-twisting of the optical fiber because the optical fiber synchronously follows rotation. Accordingly, there is a need for improvements and optimizations in the art.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a laser welding machine for preventing optical fibers from winding so as to prevent the optical fibers from winding and twisting.
In order to overcome the defects in the prior art, the invention provides the following technical scheme:
The utility model provides a prevent winding laser welding machine of optic fibre, includes quick-witted case and installs electronic revolving stage, centre gripping positioner on machine case, centre gripping positioner includes the locating rack and arranges the pipeline fixture in electronic revolving stage center top, electronic revolving stage center below the pipeline fixture is equipped with coupling positioner, install laser welding device through fine setting mechanism on the electronic revolving stage, laser welding device is including laser collimation subassembly and the laser focusing subassembly of connecting laser generator, the perpendicular connection of laser collimation subassembly is on the laser focusing subassembly to relative laser focusing subassembly free rotation, the play light end of laser focusing subassembly is towards between pipeline fixture and the coupling positioner, and the department that corresponds with laser collimation subassembly in it still is equipped with the full lens of laser total reflection visible light, the angle of inclination of the full lens of laser total reflection visible light in the laser focusing subassembly and with the angle between the laser collimation subassembly are 45.
Preferably, the laser collimation assembly comprises a collimation light tube, an optical fiber interface for connecting a laser generator is arranged at the lower end of the collimation light tube, a collimation lens is arranged at the upper end of the collimation light tube, a light tube positioning sleeve is fixed at the lower side of the laser focusing assembly, and the collimation light tube is arranged in the light tube positioning sleeve through a collimation bearing.
Preferably, the middle part of the lower side of the electric rotating table is connected with an optical fiber pipe, a first perforation is arranged on the optical fiber pipe, and a second perforation is arranged on the electric rotating table; the optical fiber tube is characterized in that the lower end of the optical fiber tube is arranged on a reduction gear box, the reduction gear box is arranged on the case and connected with a driving motor, and a through hole corresponding to the optical fiber tube is arranged in the middle of the reduction gear box.
Preferably, one end of the laser focusing assembly, which is far away from the light emitting end, is further provided with a blue light vision assembly, the blue light vision assembly comprises a CCD camera and a blue light lamp, and the CCD camera and the blue light lamp face the light emitting end of the laser focusing assembly.
Preferably, the end part of the laser focusing assembly is provided with an objective lens barrel perpendicular to the end part, a 45-degree obliquely arranged reflecting lens is arranged at the joint of the objective lens barrel and the end part of the laser focusing assembly, and the CCD camera is arranged at the end part of the objective lens barrel.
Preferably, the laser focusing assembly comprises a laser output head, a focusing lens and a protective lens, wherein the focusing lens and the protective lens are arranged at the end part of the laser output head, the focusing lens is arranged at the inner side of the end part of the laser output head, a cooling channel which surrounds the laser output head in a circle is arranged on the corresponding laser output head, at least two cooling water interfaces communicated with the cooling channel are arranged on the corresponding laser output head, the cooling water interfaces are used for connecting cooling water, and the protective lens is arranged at the outer side of the focusing lens.
Preferably, the end part of the laser output head is also provided with a conical protective cover, the protective cover is provided with a protective gas interface, the end part of the protective cover is provided with a laser outlet, and the protective gas interface is used for connecting an inert gas source.
Preferably, the pipe joint positioning device comprises a positioning support fixed at the center of the electric rotating table and a bearing seat fixed at the upper end of the positioning support, wherein a positioning bearing is arranged in the bearing seat, and a positioning head is arranged in an inner ring of the positioning bearing.
Preferably, the fine adjustment mechanism comprises an adjusting and positioning frame and an adjusting and positioning column which are fixed on the electric rotating table, the adjusting and positioning frame is provided with a transverse adjusting mechanism, a longitudinal adjusting mechanism and a vertical adjusting mechanism, the laser collimation assembly and the laser focusing assembly are fixed on the adjusting and positioning column, and the adjusting and positioning column adjusts the positions of the transverse direction, the longitudinal direction and the vertical direction through the transverse adjusting mechanism, the longitudinal adjusting mechanism and the vertical adjusting mechanism.
Preferably, the pipeline clamping mechanism comprises a vertical driving cylinder and a clamping positioning plate, wherein the vertical driving cylinder is arranged on the positioning frame, the clamping positioning plate is driven to move up and down through the vertical driving cylinder, and a fixed reference clamping block and a movable clamping block which is driven to face or depart from the reference clamping block through a horizontal driving cylinder are arranged on the clamping positioning plate.
The beneficial effects are that: the gas pipe to be welded and the gas pipe joint are respectively positioned through the pipeline clamping mechanism and the pipe joint positioning device, so that the gas pipe to be welded and the gas pipe joint are kept motionless in the welding process, and the laser focusing assembly rotates around the gas pipe to finish welding, so that the rotation of the gas pipe to be welded is effectively avoided, and the bending deformation or fracture of the gas pipe to be welded caused by the swing of the gas pipe to be welded is effectively prevented; meanwhile, because the laser collimation assembly can freely rotate relative to the laser focusing assembly, when the laser focusing assembly rotates around a gas pipe to be welded, the laser collimation assembly can reversely rotate relative to the laser focusing assembly under the action of inertia and static friction force, so that the direction of the laser collimation assembly is kept unchanged, namely the laser collimation assembly can not substantially rotate, and therefore optical fiber winding and self-twisting can be effectively prevented.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic diagram of a perspective view structure according to an embodiment of the present invention;
FIG. 2 is a schematic view showing an installation state of a laser welding apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a structure of a clamping and positioning device according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a laser welding apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a laser focusing assembly according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a pipe joint positioning device according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a perspective view structure of a fine adjustment mechanism according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 1 to 7, a laser welding machine for preventing optical fiber from being wound comprises a case 500 and an electric turntable 100 and a clamping and positioning device 200 mounted on the case 500, wherein casters are mounted at four corners of the bottom of the case 500 so as to move, the clamping and positioning device 200 comprises a positioning frame 210 and a pipe clamping mechanism 220 arranged above the center of the electric turntable 100, a pipe joint positioning device 300 is arranged at the center of the electric turntable 100 below the pipe clamping mechanism 220, a laser welding device 400 is mounted on the electric turntable 100 through a fine adjustment mechanism 420, the pipe clamping mechanism 220 is used for clamping a gas pipe to be welded and arranging the gas pipe above the center of the electric turntable 100, the pipe joint positioning device 300 is used for positioning the gas pipe joint to be welded, after positioning, the lower end of the gas pipe to be welded corresponds to and is fully contacted with the gas pipe joint, and then when the electric turntable 100 is rotated by the laser welding device 400, the gas pipe joint is welded together around the lower end of the gas pipe joint to be welded, so that laser welding is realized.
Specifically, the positioning frame 210 includes a column 211 fixed on a chassis and a cantilever 212 connected to the top end of the column 211, a riser 213 is provided at the end of the cantilever 212, the pipe clamping mechanism 220 includes a vertical driving cylinder 221 installed on the riser 213 and a clamping positioning plate 222 driven to move up and down by the vertical driving cylinder 221, the clamping positioning plate 222 is fixed at the lower end of a cylinder rod of the vertical driving cylinder 221, the clamping positioning plate 222 is provided with a fixed reference clamp block 223 and a movable clamp block 225 driven to move towards or away from the reference clamp block 223 by a horizontal driving cylinder 224, the movable clamp block 225 is fixed at the end of the cylinder rod of the horizontal driving cylinder 224, when clamping a gas pipe to be welded, the gas pipe to be welded is leaned against the reference clamp block 223, then the movable clamp block 225 is driven to move towards the reference clamp block 223 by the horizontal driving cylinder 224, the gas pipe to be welded is clamped between the reference clamp block 223 and the movable clamp block 225, the clamped and positioned gas pipe to be welded is just above the center of the electric rotating table 100, in addition, the opposite surfaces of the reference clamp block 223 and the movable clamp block 225 and the gas pipe to be welded to the surface of the electric rotating table are matched with the cylinder surface of the electric rotating table in order to ensure that the electric rotating table is not in a circular arc shape when the electric rotating table is in a direction of the cylinder surface is opposite to the electric cylinder to be welded to the electric cylinder 400, and the electric cylinder is in order to rotate the welding device to be positioned around the circular arc, and the electric cylinder is convenient to rotate around the center, and the circular arc is positioned opposite to be welded with the electric cylinder to be positioned to the surface, and the electric cylinder to be a welding device is positioned and the surface, and the surface is convenient to be a welding device; through the arrangement of the structure, the clamping of the gas pipe to be welded is very quick, and the gas pipe to be welded is convenient to adjust up and down after being clamped, so that the gas pipe to be welded is convenient to fully contact with the gas pipe joint, and the gas pipe to be welded is convenient to weld.
The pipe joint positioning device 300 comprises a positioning support column 310 fixed at the center of the electric rotating table 100 and a bearing seat 320 fixed at the upper end of the positioning support column 310, wherein two positioning bearings 330 are arranged in the bearing seat 320, and positioning heads 331 are arranged in the inner rings of the two positioning bearings 330. The gas pipe joint can be directly sleeved at the top end of the positioning head 331 so as to realize the positioning of the gas pipe joint, and through the arrangement, the gas pipe joint is more stable, the friction between the gas pipe joint and the bearing seat 320 is greatly reduced, the gas pipe joint can be effectively prevented from rotating along with the rotating positioning support 310 when the electric rotating table 100 rotates, the stress condition affecting a welded junction is avoided, and the welding quality is ensured.
In order to achieve complete welding of the joint, the laser welding device 400 includes a laser collimating component 410 and a laser focusing component 430, which are connected to the laser generator through an optical fiber X, wherein the laser collimating component 410 is vertically connected to the laser focusing component 430 and rotates freely relative to the laser focusing component 430, a light emitting end of the laser focusing component 430 faces between the pipe clamping mechanism 220 and the pipe joint positioning device 300, and a laser total reflection visible light full-transparent plate 431 is further disposed at a position corresponding to the laser collimating component 410, and an inclination angle of the laser total reflection visible light full-transparent plate 431 in the laser focusing component 430 and an angle between the laser total reflection visible light full-transparent plate 431 and the laser collimating component 410 are both 45 °. During welding, after laser is emitted into the laser focusing assembly 430 from the laser collimation assembly 410, the laser is reflected by the laser total reflection visible light full lens 431 and emitted from the end part of the laser focusing assembly 430, and the emitted high-energy laser acts on the joint between the gas pipe to be welded and the gas pipe joint to quickly melt the joint of the gas pipe to be welded and the gas pipe joint to enable the gas pipe to be welded and the gas pipe joint to be welded together. In the process, the gas pipe to be welded is kept still, and the laser focusing assembly 430 rotates around the gas pipe to be welded for one circle, so that the rotation of a longer accessory of the gas pipe to be welded is effectively avoided, and the bending deformation or fracture of the gas pipe to be welded caused by swing can be effectively prevented; meanwhile, since the laser alignment assembly 410 can rotate freely relative to the laser focusing assembly 430, when the laser focusing assembly 430 rotates around the gas pipe to be welded, the laser alignment assembly 410 rotates reversely relative to the laser focusing assembly 430 under the action of inertia and static friction force, so that the direction of the laser alignment assembly 410 is kept unchanged, that is, the laser alignment assembly 410 does not substantially rotate, thereby effectively preventing the optical fiber X from winding and twisting. For ease of understanding, an arrow may be defined on the laser alignment assembly 410, and assuming that the arrow points to the right, since the laser alignment assembly 410 is free to rotate relative to the laser focusing assembly 430, the arrow points to the right regardless of the direction of the light emitting end of the laser focusing assembly 430 during the rotation of the laser focusing assembly 430 due to its inertia and static friction, and thus, the laser alignment assembly 410 does not substantially rotate, but only rotates relative to the laser focusing assembly 430.
In order to realize the installation that the laser alignment assembly 410 can freely rotate relative to the laser focusing assembly 430, in particular, in the implementation, an optical tube positioning sleeve 414 can be fixed at the lower side of the laser focusing assembly 430, the laser alignment assembly 410 comprises an alignment optical tube 411, an optical fiber interface 412 for connecting a laser generator is arranged at the lower end of the alignment optical tube 411, an alignment lens 413 is arranged at the upper end of the alignment optical tube 411, and the alignment optical tube 411 is installed in the optical tube positioning sleeve 414 through an alignment bearing 415, so that the alignment optical tube 411 can flexibly rotate in the alignment bearing 415, and is installed through the alignment bearing 415, the rotation sensitivity is high, the friction force received by the laser alignment assembly 410 can be greatly reduced, thereby the laser alignment assembly 410 can be effectively prevented from being driven to rotate when the laser focusing assembly 430 rotates around a circle, the laser alignment assembly 410 is ensured not to generate autorotation, and the optical fiber X is effectively prevented from being wound and twisted; and through the structural installation, the stability of the collimation light barrel 411 is effectively improved, and the generation of optical deviation caused by jumping can be prevented, so that the deviation of welding positions is avoided, and the welding quality is effectively ensured. After the optical fiber interface 412 is connected with the laser generator through the optical fiber X, the laser enters the laser collimation assembly 410 through the optical fiber X, and then is emitted after being reflected by the laser total reflection visible light full lens 431 and focused by the focusing lens 433.
Further, in order to make the optical fiber X more neat, the middle part of the lower side of the electric rotating table 100 is connected with an optical fiber tube 130, a first through hole 131 is formed on the optical fiber tube 130, and a second through hole 101 is formed on the electric rotating table 100; the lower end of the optical fiber tube 130 is arranged on the reduction gear box 110, the reduction gear box 110 is arranged on the chassis and is connected with the driving motor 120, and the middle part of the reduction gear box 110 is provided with a through hole 111 corresponding to the optical fiber tube 130. After the optical fiber X is connected to the laser generator, it penetrates into the optical fiber tube 130 from the through hole 111 and penetrates out from the first through hole 131, and then passes through from the second through hole 101 and is connected to the optical fiber interface 412 of the laser alignment assembly 410, so that when the laser welding device 400 is rotated and welded, the optical fiber X always follows the winding but does not rotate, thereby effectively avoiding the optical fiber X from winding on other components.
Preferably, a blue light vision assembly 440 is further disposed at an end of the laser focusing assembly 430 facing away from the light emitting end, the blue light vision assembly 440 includes a CCD camera 441 and a blue light 442, and the CCD camera 441 and the blue light 442 face the light emitting end of the laser focusing assembly 430. The laser total reflection visible light full lens sheet 431 can transmit visible light, so that the welding part can be irradiated by the blue light 442, and the welding position can be observed in real time by the CCD camera 441, and the blue light is emitted by the blue light 442, so that the observation is more convenient; specifically, in implementation, an objective lens barrel 443 perpendicular to the end of the laser focusing assembly 430 is disposed at the end of the laser focusing assembly 430, a 45 ° inclined reflective lens 444 is disposed at the connection between the objective lens barrel 443 and the end of the laser focusing assembly 430, and the CCD camera 441 is mounted at the end of the objective lens barrel 443, so that the blue light 442 is directed toward the light emitting end of the laser focusing assembly 430, and the CCD camera 441 can observe the real-time condition of the welding position through the reflective lens 444. In addition, the CCD camera 441 may be connected to a display screen for more convenient observation, and the enclosure plate 510 surrounding the electric turntable 100, the pipe clamping mechanism 220, the pipe joint positioning device 300 and the laser welding device 400 is also provided around the chassis 500 to prevent slag generated by welding from sputtering to hurt people; and the front side of the case 500 is also provided with an operation panel 520 which is obliquely arranged, and a plurality of operation buttons are arranged on the operation panel 520 so as to facilitate operation.
Preferably, the laser focusing assembly 430 includes a laser output head 432, a focusing lens 433 mounted at the end of the laser output head 432, and a protective lens 434, wherein the focusing lens 433 is mounted at the inner side of the end of the laser output head 432, a cooling channel 435 surrounding the laser output head 432 is arranged on the corresponding laser output head 432, and two cooling water interfaces 436 communicated with the cooling channel 435 are arranged on the corresponding laser output head 432, the cooling water interfaces 436 are used for connecting cooling water, the protective lens 434 is arranged at the outer side of the focusing lens 433, and focuses the laser entering the laser focusing assembly 430 through the focusing lens 433, so that the finally emitted laser beam is more concentrated at the joint between the gas pipe and the gas pipe joint to be welded, and the protective lens 434 can prevent slag generated during welding from splashing on the focusing lens 433, effectively protect the focusing lens 433, and ensure the focusing effect; meanwhile, the cooling water is connected through the two cooling water interfaces 436, one of the cooling water interfaces is used for connecting the water inlet pipe, and the other cooling water interface is used for connecting the water outlet pipe, so that the flow of the cooling water is realized, the edge of the focusing lens 433 is continuously cooled for one circle, and the normal work of the focusing lens is ensured. In addition, the end of the laser output head 432 is further provided with a conical protective cover 437, the protective cover 437 is provided with a protective gas interface 438, the end of the protective cover 437 is provided with a laser outlet 439, the protective gas interface 438 is used for connecting an inert gas source, the focused laser beam is emitted from the laser outlet 439, and the inside of the protective cover 437 is continuously filled with inert gas, so that a positive pressure environment is maintained, smoke generated during welding can be effectively prevented from entering, the observation is convenient, the inert gas is nitrogen or argon, the inert gas is colorless and odorless, and the good observation environment is kept; meanwhile, as the continuously-introduced inert gas passes through the laser outlet 439 and is sprayed at the welded junction, the oxidation of the welded junction can be effectively prevented, the surface after welding is bright, no additional treatment is needed, the welding quality is greatly improved, and the problems that the surface of the argon arc welding is black 404 and is required to be polished are effectively solved.
In order to achieve the position adjustment of the laser welding device 400, the fine adjustment mechanism 420 includes an adjustment positioning frame 421 and an adjustment positioning column 422 fixed on the electric rotating table 100, the adjustment positioning frame 421 is provided with a transverse adjustment mechanism 423, a longitudinal adjustment mechanism 424 and a vertical adjustment mechanism 425, the laser alignment assembly 410 and the laser focusing assembly 430 are fixed on the adjustment positioning column 422, the adjustment positioning column 422 adjusts the positions in the transverse, longitudinal and vertical directions through the transverse adjustment mechanism 423, the longitudinal adjustment mechanism 424 and the vertical adjustment mechanism 425, specifically, an adjustment positioning plate 426 is fixed on the adjustment positioning column 422, the laser focusing assembly 430 is mounted on the adjustment positioning plate 426, the transverse adjustment mechanism 423 is arranged on the adjustment positioning frame 421, the longitudinal adjustment mechanism 424 is arranged on the transverse adjustment mechanism 423, the transverse position is adjusted through the transverse adjustment machine head 423, the vertical adjustment mechanism 424 is arranged on the longitudinal adjustment mechanism 424, the adjustment positioning column 422 is arranged on the vertical adjustment mechanism 425, and the vertical position is adjusted through the vertical adjustment machine head 425, by such a structure, the fine adjustment device 400 can be achieved, and the operation is simple and convenient; the specific structures of the transverse adjusting mechanism 423 and the longitudinal adjusting mechanism 424 may be a guide rail structure and a screw structure, that is, the transverse adjusting mechanism 423 is configured as a transverse guide rail and a transverse adjusting screw, the longitudinal adjusting mechanism 424 is adapted to the transverse guide rail and is provided with a longitudinal guide rail and a longitudinal adjusting screw, the vertical adjusting mechanism 425 is adapted to the longitudinal guide rail, and the structure may be a jack structure or other structures, that is, as long as the position adjustment in the vertical direction can be realized, the structure is included in the protection scope of the present invention.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a prevent winding laser welding machine of optic fibre, includes quick-witted case (500) and installs electric turntable (100), centre gripping positioner (200) on quick-witted case (500), its characterized in that: the clamping and positioning device (200) comprises a positioning frame (210) and a pipeline clamping mechanism (220) arranged above the center of the electric rotating table (100), a pipe joint positioning device (300) is arranged at the center of the electric rotating table (100) below the pipeline clamping mechanism (220), a laser welding device (400) is arranged on the electric rotating table (100) through a fine adjustment mechanism (420), the laser welding device (400) comprises a laser collimation assembly (410) and a laser focusing assembly (430) which are connected with a laser generator, the laser collimation component (410) is vertically connected with the laser focusing component (430) and can freely rotate relative to the laser focusing component (430), the light emitting end of the laser focusing assembly (430) faces between the pipeline clamping mechanism (220) and the pipe joint positioning device (300), and a laser total reflection visible light full-transparent sheet (431) is arranged in the position corresponding to the laser collimation assembly (410), the inclination angle of the laser total reflection visible light full lens sheet (431) in the laser focusing assembly (430) and the angle between the laser total reflection visible light full lens sheet and the laser collimation assembly (410) are both 45 degrees, the positioning frame (210) comprises an upright post (211) fixed on the chassis (500) and a cantilever (212) connected to the top end of the upright post (211), and a vertical plate (213) is arranged at the end part of the cantilever (212).
2. A laser welder for preventing fiber winding as defined in claim 1, wherein: the laser collimation assembly (410) comprises a collimation light cylinder (411), an optical fiber interface (412) used for being connected with a laser generator is arranged at the lower end of the collimation light cylinder (411), a collimation lens (413) is arranged at the upper end of the collimation light cylinder, a light cylinder positioning sleeve (414) is fixed at the lower side of the laser focusing assembly (430), and the collimation light cylinder (411) is arranged in the light cylinder positioning sleeve (414) through a collimation bearing (415).
3. A laser welder for preventing fiber winding as defined in claim 1, wherein: the middle part of the lower side of the electric rotating table (100) is connected with an optical fiber tube (130), a first perforation (131) is arranged on the optical fiber tube (130), and a second perforation (101) is arranged on the electric rotating table (100); the optical fiber tube (130) lower extreme is installed on reduction gear box (110), reduction gear box (110) is installed on the machine case and is connected with driving motor (120), reduction gear box (110) middle part is equipped with through-hole (111) that correspond with optical fiber tube (130).
4. A laser welder for preventing fiber winding as defined in claim 1, wherein: the one end that laser focus subassembly (430) deviate from the light-emitting end still is equipped with blue light vision subassembly (440), blue light vision subassembly (440) are including CCD camera (441) and blue light lamp (442), CCD camera (441) and blue light lamp (442) are towards the light-emitting end of laser focus subassembly (430).
5. A laser welder for preventing fiber entanglement as recited in claim 4, wherein: the end part of the laser focusing assembly (430) is provided with an objective lens barrel (443) perpendicular to the end part, a 45-degree inclined reflecting lens (444) is arranged at the joint of the objective lens barrel (443) and the end part of the laser focusing assembly (430), and the CCD camera (441) is arranged at the end part of the objective lens barrel (443).
6. A laser welder for preventing fiber winding as defined in claim 1, wherein: the laser focusing assembly (430) comprises a laser output head (432) and a focusing lens (433) and a protective lens (434) which are arranged at the end part of the laser output head (432), the focusing lens (433) is arranged at the inner side of the end part of the laser output head (432), a cooling channel (435) which surrounds the laser output head (432) in a circle is arranged on the corresponding laser output head (432), at least two cooling water interfaces (436) which are communicated with the cooling channel (435) are arranged, the cooling water interfaces (436) are used for connecting cooling water, and the protective lens (434) is arranged at the outer side of the focusing lens (433).
7. A laser welder for preventing fiber winding as defined in claim 1, wherein: the end part of the laser output head (432) is also provided with a conical protective cover (437), the protective cover (437) is provided with a protective gas interface (438), the end part of the protective cover is provided with a laser outlet (439), and the protective gas interface (438) is used for being connected with an inert gas source.
8. A laser welder for preventing fiber winding as defined in claim 1, wherein: the pipe joint positioning device (300) comprises a positioning support (310) fixed at the center of the electric rotating table (100) and a bearing seat (320) fixed at the upper end of the positioning support (310), wherein a positioning bearing (330) is arranged in the bearing seat (320), and a positioning head (331) is arranged in the inner ring of the positioning bearing (330).
9. A laser welder for preventing optical fiber entanglement according to any one of claims 1-8, wherein: the fine adjustment mechanism (420) comprises an adjustment positioning frame (421) and an adjustment positioning column (422) which are fixed on the electric rotating table (100), a transverse adjustment mechanism (423), a longitudinal adjustment mechanism (424) and a vertical adjustment mechanism (425) are arranged on the adjustment positioning frame (421), the laser collimation assembly (410) and the laser focusing assembly (430) are fixed on the adjustment positioning column (422), and the adjustment positioning column (422) adjusts the positions of the transverse direction, the longitudinal direction and the vertical direction through the transverse adjustment mechanism (423), the longitudinal adjustment mechanism (424) and the vertical adjustment mechanism (425).
10. A laser welder for preventing optical fiber entanglement according to any one of claims 1-8, wherein: the pipeline clamping mechanism (220) comprises a vertical driving air cylinder (221) arranged on the positioning frame (210) and a clamping positioning plate (222) which is driven to move up and down through the vertical driving air cylinder (221), wherein a fixed reference clamping block (223) and a movable clamping block (225) which is driven to face or depart from the reference clamping block (223) through a horizontal driving air cylinder (224) are arranged on the clamping positioning plate (222).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910358488.8A CN110026680B (en) | 2019-04-30 | 2019-04-30 | Prevent winding laser welding machine of optic fibre |
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| CN201910358488.8A CN110026680B (en) | 2019-04-30 | 2019-04-30 | Prevent winding laser welding machine of optic fibre |
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| CN110026680B true CN110026680B (en) | 2024-04-30 |
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| CN110434482B (en) * | 2019-08-06 | 2024-04-09 | 苏州创轩激光科技有限公司 | Rotary ice cutting laser machine |
| CN115319293B (en) * | 2022-10-17 | 2023-02-03 | 成都市鸿侠科技有限责任公司 | Arc surface laser welding equipment and method based on spacecraft part assembly |
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