CN212682783U - Device suitable for girth weld laser welding - Google Patents
Device suitable for girth weld laser welding Download PDFInfo
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- CN212682783U CN212682783U CN202020806400.2U CN202020806400U CN212682783U CN 212682783 U CN212682783 U CN 212682783U CN 202020806400 U CN202020806400 U CN 202020806400U CN 212682783 U CN212682783 U CN 212682783U
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Abstract
The utility model relates to a device suitable for girth joint laser welding, including laser welding head and welding box, the laser welding head is connected with the laser instrument through optic fibre, the laser welding head is located the welding box outside, the surface of welding box is equipped with the printing opacity lens, still includes work piece rotating assembly, lift assembly; the welding box is provided with a butt joint port movably connected with the workpiece rotating assembly and is communicated with an atmosphere cabinet; the workpiece rotating assembly and the lifting assembly are arranged outside the welding box, the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device. The device structure has better convenience to the welding clamping process, has further improved welding efficiency, and simple structure is convenient for maintain simultaneously.
Description
Technical Field
The utility model relates to a laser welding field, in particular to device suitable for girth weld laser welding.
Background
Laser welding is a high-efficiency precision welding method using a laser beam with high energy density as a heat source, the welding process belongs to a heat conduction type, namely, the surface of a workpiece is heated by laser radiation, the surface heat is diffused inwards through heat conduction, the workpiece is melted to form a specific molten pool by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulse, and the laser welding is successfully applied to modern industry due to the unique advantages. The volume of the vacuum cavity of the existing vacuum laser welding device is large, and the vacuumizing before welding takes more time, so that the welding efficiency is low. Chinese utility model patent with application number 201920016636.3 places the laser welding head outside airtight cavity, but the welding function is single, can not weld to the circumferential weld, wherein chinese invention patent with application number 201310149610.3 discloses a device for vacuum laser welding, but the device has following defect:
1. the device can only carry out laser welding on the end surface annular welding seam of the workpiece to be welded, and has limitation on the position of the welding surface of the workpiece to be welded;
2. the sealing of the vacuum cavity needs to match the side surface of the workpiece to be welded, so that the shape and the smoothness of the side surface of the workpiece to be welded have higher requirements;
3. in the welding process, the vacuum cavity and the workpiece to be welded need to rotate together, and the mechanism is complex;
4. when the workpiece to be welded is assembled with the vacuum cavity, the locking operation of the vacuum cavity needs to be added, and the procedure is complicated.
In summary, the existing welding device still has many disadvantages and shortcomings in the application process, and needs further improvement to meet the development needs of modern industry.
Disclosure of Invention
The utility model discloses an overcome prior art's shortcoming, provide a device suitable for girth weld laser welding.
The utility model relates to a device suitable for girth joint laser welding, including laser welding head and welding box, the laser welding head is connected with the laser instrument through optic fibre, the laser welding head is located the welding box outside, the surface of welding box is equipped with the printing opacity lens, still includes work piece rotating assembly, lift assembly;
the welding box is provided with a butt joint port movably connected with the workpiece rotating component,
the welding box is communicated with the atmosphere cabinet;
the workpiece rotating assembly and the lifting assembly are arranged outside the welding box,
the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device.
Further, the outer surface of the welding box comprises an upper end face and/or a side face, and the side face of the welding box is provided with an observation window.
Further, the welding box is any one of a rectangular body, a cylinder and a cone.
Furthermore, the light-transmitting lens is quartz glass with light transmittance of more than 95%.
Furthermore, the laser welding head is connected with a laser welding head driving assembly, and the laser welding head driving assembly comprises a Z-axis linear module, a Y-axis linear module and an A-axis rotating module.
Further, a vacuum pressure gauge and/or an oxygen content tester are arranged in the welding box, the vacuum pressure gauge and the oxygen content tester are in communication connection with the atmosphere cabinet, and a vacuum generating device and/or a protective gas replacement device are arranged in the atmosphere cabinet.
Furthermore, the lifting assembly is connected with the workpiece rotating assembly, and a sealing structure is arranged on the edge of the butt joint port.
Further, the workpiece rotating assembly comprises an outer sleeve, a rotating shaft, an angular contact ball bearing, a bearing pressing end cover, a servo motor and a mounting seat, the workpiece clamping device is arranged at the upper end of the rotating shaft, the rotating shaft is arranged on the outer sleeve through the angular contact ball bearing and the bearing pressing end cover, the outer sleeve is arranged on the mounting seat, and the lower end of the rotating shaft is connected with the servo motor.
Furthermore, the lifting assembly comprises a lifting driver, a fixing plate and a connecting piece, a slide is arranged on the fixing plate, one end of the connecting piece is movably connected with the slide, the other end of the connecting piece is connected with the mounting seat, and the lifting driver drives the connecting piece to move along the slide.
Still more specifically, seal structure includes sealed recess and sealing washer, the sealing washer is located in the sealed recess, sealed recess locates overcoat upper end or to the border of interface.
Further, still include oil blanket subassembly, the oil blanket subassembly is located on the work piece rotating assembly, the oil blanket subassembly includes high-pressure air chamber, pressure device and a pair of rotary seal, a pair of rotary seal installs on the rotation axis, communicate with high-pressure air chamber between a pair of rotary seal, be equipped with sealed oil in the high-pressure air chamber, high-pressure air chamber's upper portion and pressure device intercommunication.
Further, the upper portion of the high pressure gas chamber is communicated with a vacuum generating device.
Further, still include control assembly, control assembly includes the PLC controller, the PLC controller is connected with laser instrument, laser welding head drive assembly, atmosphere cabinet, lifting unit, servo motor.
The method for laser welding of the circumferential weld seam adopted by the device comprises the following steps:
s1, the lifting assembly drives the welding box to be separated from the workpiece rotating assembly, the workpiece to be welded is fixed on the workpiece clamping device, the lifting assembly drives the welding box to be attached to the workpiece rotating assembly, and the atmosphere cabinet adjusts the atmosphere environment in the welding box to the welding standard;
s2, the workpiece rotating assembly drives the workpiece to be welded to rotate, and the laser welding head emits laser which is transmitted to the welding part of the workpiece to be welded through the light-transmitting lens;
and S3, after welding, adjusting the atmosphere environment in the welding box to the separable standard of the welding box and the workpiece rotating assembly by the atmosphere cabinet, separating the welding box and the workpiece rotating assembly by the lifting assembly, and taking down the welded workpiece.
Further, in step S2, the welding portion includes an upper end surface and a side surface of the workpiece to be welded.
The utility model relates to a device suitable for circumferential weld laser welding main advantage is:
1. the top and the side of the welding box are provided with light-transmitting lenses, so that the welding work of the end surface welding line and the side surface welding line of the workpiece to be welded in an atmosphere environment can be realized;
2. the lower surface of the welding box is provided with a sealing ring, when the workpiece rotating assembly rises to be in butt joint with the atmosphere welding box assembly, a sealing cavity can be formed inside the welding box, and the traditional open-close type sealing door is replaced;
3. a sealing structure is designed between the outer sleeve of the workpiece rotating assembly and the rotating shaft, so that the workpiece to be welded can rotate in the welding box and can be sealed, the atmosphere standard in the welding box is ensured, and the welding quality is improved;
4. the structure of the device stretches the rotating shaft out of the welding box, so that the mounting position of the servo motor is not in the welding box, the volume of the welding box is reduced, the time for adjusting the atmosphere in the welding box to the welding standard by the atmosphere cabinet is shortened, and the welding efficiency is improved;
5. the device structure has better convenience to the welding clamping process, has further improved welding efficiency, and simple structure is convenient for maintain simultaneously.
Drawings
FIG. 1 is a schematic view of the overall construction of an apparatus suitable for girth weld laser welding;
FIG. 2 is a schematic view of a work piece to be welded and the position of a weld;
FIG. 3 is a schematic cross-sectional view of a welding box;
fig. 4 is a sectional structural sectional view of the workpiece rotating assembly.
Wherein, 1 laser welding head driving component; 1-1Z axis linear module; 1-2Y axis linear modules; a 1-3A axis rotation module; 1-4 laser welding head; 2, welding a box; 2-1 light-transmitting lens; 2-2 air extraction holes; 2-3 air supply holes; 2-4 sealing rings; 2-5 pairs of interfaces; 2-6 observation windows; 2-7 vacuum pressure gauge; 2-8 oxygen content tester; 3, welding the workpiece to be welded; 3-1 end face welding seam; 3-2, welding a workpiece A to be welded; 3-3 side welding seams; 3-4, welding a workpiece B to be welded; 4, an oil seal assembly; 4-1 high-pressure air chamber; 4-2 sealing oil; 5, a workpiece rotating component; 5-1 workpiece holding means; 5-2, coating; 5-3 rotation axis; 5-4 angular contact ball bearings; 5-5 rotary sealing rings; 5-6 bearing pressing end covers; 5-7 high-pressure sealing cavities; 6, a servo motor; 7, a lifting component; 8, mounting seats; 9 an optical fiber; 10 a laser; 11 is connected with an air pipe; 12 atmosphere cabinet; 13 a control cable; 14 PLC.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Example 1
A device suitable for laser welding of a circumferential weld comprises a laser welding head and a welding box, wherein the laser welding head is connected with a laser through an optical fiber and is arranged outside the welding box, a light-transmitting lens is arranged on the outer surface of the welding box, and the device further comprises a workpiece rotating assembly and a lifting assembly;
the welding box is provided with a butt joint port movably connected with the workpiece rotating component,
the welding box is communicated with the atmosphere cabinet;
the workpiece rotating assembly and the lifting assembly are arranged outside the welding box,
the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device.
The surface of welding case includes up end and side, the side of welding case is equipped with the observation window, but through the inside welding condition of observation window visual observation, pastes the laser protecting film on the observation window.
In the embodiment, the welding box is a rectangular body and can adapt to the welding of annular welding seams of workpieces to be welded in various shapes; the light-transmitting lens is quartz glass with the light transmittance of more than 95%.
The workpiece rotating assembly comprises an outer sleeve, a rotating shaft, an angular contact ball bearing, a bearing pressing end cover, a servo motor and a mounting seat, the workpiece clamping device is arranged at the upper end of the rotating shaft, the rotating shaft is arranged on the outer sleeve through the angular contact ball bearing and the bearing pressing end cover, the outer sleeve is arranged on the mounting seat, and the lower end of the rotating shaft is connected with the servo motor.
The device completes welding through the following steps:
s1, the lifting assembly drives the welding box to be separated from the workpiece rotating assembly, the workpiece to be welded is fixed on the workpiece clamping device, the workpiece clamping device is a mechanical three-jaw chuck, automatic centering and clamping can be achieved conveniently and quickly, the lifting assembly drives the welding box to be attached to the workpiece rotating assembly, and the atmosphere in the welding box is adjusted to a welding standard by the atmosphere cabinet; lifting unit can drive welding case or work piece rotating assembly, makes welding case and work piece rotating assembly separation, and lifting unit drive work piece rotating assembly makes welding case and work piece rotating assembly separation in this embodiment, lifting unit includes lift driver, fixed plate, connecting piece, be equipped with the slide on the fixed plate, connecting piece one end and slide swing joint, the other end are connected with the mount pad, lift driver drive connecting piece removes along the slide. The lifting driver is any one of an air cylinder, an oil cylinder or a driving motor assembly, the driving motor assembly comprises a driving motor and a transmission assembly, and the transmission assembly is of a screw rod structure or a gear rack structure; the welding box is internally provided with a vacuum pressure gauge which is in communication connection with the atmosphere cabinet, a vacuum generating device is arranged in the atmosphere cabinet, the welding box is provided with an air exhaust hole and an air supply hole, the vacuum generating device is communicated with the air exhaust hole and the air supply hole, and the vacuum generating device vacuumizes the environment in the welding box to the welding standard through the air exhaust hole;
s2, the workpiece rotating assembly drives the workpiece to be welded to rotate, the laser welding head emits laser, the laser is transmitted to the welding part of the workpiece to be welded through the light-transmitting lens, and the rotating speed of the workpiece to be welded can be adjusted through the servo motor, so that the laser welding head is suitable for various different workpieces to be welded;
s3, after welding, adjusting the atmosphere environment in the welding box to the separable standard of the welding box and the workpiece rotating assembly by the atmosphere cabinet, sending air into the welding box by the vacuum generating device through the air supply hole, breaking the vacuum negative pressure state, driving the welding box to be separated from the workpiece rotating assembly by the lifting assembly, taking down the welding workpiece, and facilitating the separation of the welding box and the workpiece rotating assembly. For other welding set, the utility model discloses the welded step is accomplished to the device is simpler, and it is obvious to promote welding efficiency and welding quality.
The laser welding head is connected with a laser welding head driving assembly, and the laser welding head driving assembly comprises a Z-axis linear module, a Y-axis linear module and an A-axis rotating module. The welding method comprises the steps that a workpiece to be welded comprises a workpiece A to be welded and a workpiece B to be welded, a laser welding head is welded on an end face welding seam of the upper end face of the workpiece to be welded firstly, then a Z-axis linear module and a Y-axis linear module move the laser welding head to the position of a light-transmitting lens on the side face of a welding box, the laser welding head is rotated to be perpendicular to the light-transmitting lens on the side face through an A-axis rotating module, and then the side face welding seam of the workpiece to be welded is welded.
Example 2
As shown in fig. 1, 2, 3, and 4, an apparatus suitable for girth weld laser welding includes a laser welding head and a welding box, wherein the laser welding head is connected to a laser through an optical fiber, the laser welding head is disposed outside the welding box, a transparent lens is disposed on an outer surface of the welding box, and the apparatus further includes a workpiece rotating assembly and a lifting assembly;
the welding box is provided with a butt joint port movably connected with the workpiece rotating component,
the welding box is communicated with the atmosphere cabinet;
the workpiece rotating assembly and the lifting assembly are arranged outside the welding box,
the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device.
The surface of welding case includes up end and side, the side of welding case is equipped with the observation window.
In this embodiment, the welding box is a cylinder, wherein the appearance of the workpiece to be welded is also a cylinder, and the consistent appearance of the welding box and the workpiece to be welded is favorable for reducing the volume of vacuumizing or filling inert gas in the welding box, so that the welding efficiency is further improved, and the energy consumption is reduced.
The light-transmitting lens is quartz glass with the light transmittance of more than 95%.
The laser welding head is connected with a laser welding head driving assembly, and the laser welding head driving assembly comprises a Z-axis linear module, a Y-axis linear module and an A-axis rotating module.
The welding incasement is equipped with vacuum pressure table and oxygen content tester, vacuum pressure table and oxygen content tester and atmosphere cabinet communication connection, be equipped with vacuum generating device and protective gas replacement device in the atmosphere cabinet, the protective gas replacement device can be with inert gas (argon or helium), carbon dioxide replacement to the welding incasement, but applicable to vacuum environment welding or inert gas environment welding during the use, can select any kind in vacuum generating device or the protective gas replacement device according to using the welding scene, makes the welding incasement atmosphere environment reach the service standard.
The lifting assembly is connected with the workpiece rotating assembly, and a sealing structure is arranged on the edge of the butt joint port. The sealing structure comprises a sealing groove and a sealing ring, the sealing ring is arranged in the sealing groove, and the sealing groove is arranged at the edge of the butt joint.
The workpiece rotating assembly comprises an outer sleeve, a rotating shaft, angular contact ball bearings, bearing pressing end covers, a servo motor and a mounting seat, the workpiece clamping device is arranged at the upper end of the rotating shaft, the rotating shaft is arranged on the outer sleeve through the angular contact ball bearings and the bearing pressing end covers, the outer sleeve is arranged on the mounting seat, the lower end of the rotating shaft is connected with the servo motor, as shown in figure 4, the angular contact ball bearings are a pair and are arranged at positions, close to two ends, of the rotating shaft, and the stability of the rotating shaft is better in the rotating process.
The lifting assembly comprises a lifting driver, a fixed plate and a connecting piece (not shown in the figure), a slide is arranged on the fixed plate, one end of the connecting piece is movably connected with the slide, the other end of the connecting piece is connected with the mounting seat, the lifting driver drives the connecting piece to move up and down along the slide, two travel switches are arranged on one side of the fixed plate through the travel capable of moving up and down, the distance between the welding box and the workpiece rotating assembly is controlled by adjusting the positions of the two travel switches, and the distance is determined by the height of the workpiece to be welded, which can be conveniently.
In this embodiment, still include the oil blanket subassembly, the oil blanket subassembly is located on the work piece rotating assembly, the oil blanket subassembly includes high-pressure air chamber, pressure device and a pair of rotary seal, a pair of rotary seal installs on the rotation axis, communicate with high-pressure air chamber between a pair of rotary seal, be equipped with sealing oil in the high-pressure air chamber, the upper portion and the pressure device intercommunication of high-pressure air chamber. The pressurizing device pressurizes the high-pressure air chamber before the workpiece to be welded is welded, after the workpiece to be welded is sealed through the oil seal assembly, air outside the welding box cannot enter the welding box in the rotating process of the rotating shaft, and therefore the welding quality is higher than that of a conventional welding device.
The laser welding device is characterized by further comprising a control assembly, wherein the control assembly comprises a PLC, and the PLC is connected with the laser, the laser welding head driving assembly, the atmosphere cabinet, the lifting assembly and the servo motor through control cables.
All actions through the PLC controller the device welding process all can be accomplished according to the chronogenesis automation, be convenient for match automation line, wherein work piece clamping device is hydraulic pressure or pneumatic or electric chuck, treats the clamping process accessible automation machinery hand of welding workpiece and accomplishes, compares in traditional laser welding device, the utility model discloses a scheme has better convenience to the welding clamping process, has improved welding efficiency, and its reasonable simple structure makes welding process high-efficient swift more, and the device structure is easily maintained, makes simultaneously treat that the work piece obtains high-quality welding effect under vacuum or inert gas's protection.
Example 3
A device suitable for laser welding of a circumferential weld comprises a laser welding head and a welding box, wherein the laser welding head is connected with a laser through an optical fiber and is arranged outside the welding box, a light-transmitting lens is arranged on the outer surface of the welding box, and the device further comprises a workpiece rotating assembly and a lifting assembly;
the welding box is provided with a butt joint port movably connected with the workpiece rotating component,
the welding box is communicated with the atmosphere cabinet;
the workpiece rotating assembly and the lifting assembly are arranged outside the welding box,
the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device.
The surface of welding case includes up end and side, the side of welding case is equipped with the observation window.
In this embodiment, the welding box is a cone, and the welding box fits with the appearance of the workpiece to be welded, which is beneficial to reducing the volume of vacuuming or filling inert gas and improving the welding efficiency.
The laser welding head is connected with a laser welding head driving assembly, and the laser welding head driving assembly comprises a Z-axis linear module, a Y-axis linear module and an A-axis rotating module.
A vacuum pressure gauge and an oxygen content tester are arranged in the welding box, the vacuum pressure gauge and the oxygen content tester are in communication connection with an atmosphere cabinet, a vacuum generating device and a protective gas replacement device are arranged in the atmosphere cabinet, when a workpiece to be welded needs a vacuum welding environment, the welding box is vacuumized, and whether the vacuum environment meets the welding requirement is monitored through a vacuum pressure gauge; when the workpieces to be welded need the welding environment of the protective gas, the air in the welding box is replaced through the protective gas replacement device, whether the oxygen content in the welding box meets the welding requirement is monitored through the oxygen content tester, and the vacuum and protective gas environment can adapt to different welding scenes of the workpieces to be welded.
The lifting assembly is connected with the workpiece rotating assembly, and a sealing structure is arranged on the edge of the butt joint port.
The workpiece rotating assembly comprises an outer sleeve, a rotating shaft, an angular contact ball bearing, a bearing pressing end cover, a servo motor and a mounting seat, the workpiece clamping device is arranged at the upper end of the rotating shaft, the rotating shaft is arranged on the outer sleeve through the angular contact ball bearing and the bearing pressing end cover, the outer sleeve is arranged on the mounting seat, and the lower end of the rotating shaft is connected with the servo motor.
The lifting assembly comprises a lifting driver, a fixing plate and a connecting piece, a slide is arranged on the fixing plate, one end of the connecting piece is movably connected with the slide, the other end of the connecting piece is connected with the mounting seat, and the lifting driver drives the connecting piece to move along the slide.
The sealing structure comprises a sealing groove and a sealing ring, the sealing ring is arranged in the sealing groove, and the sealing groove is arranged at the upper end of the outer sleeve.
Still include oil blanket subassembly, oil blanket subassembly is located on the work piece rotating assembly, oil blanket subassembly includes high-pressure air chamber and a pair of rotary seal, and rotary seal is lip seal, a pair of rotary seal installs on the rotation axis, communicate with high-pressure air chamber between a pair of rotary seal, be equipped with sealed oil in the high-pressure air chamber.
The upper portion of high-pressure air chamber and vacuum generating device intercommunication, the welding case partial air that takes out of evacuation can directly pressurize to the high-pressure seal intracavity, and the rotary seal circle is oppressed to the sealed oil in the high-pressure seal intracavity, makes rotary seal circle hug closely the rotation axis surface, and sealed oil does not reveal to the both ends of a pair of rotary seal circle to reach the sealed effect between welding incasement portion cavity and the external atmospheric pressure.
Claims (10)
1. A device suitable for laser welding of circumferential weld joints comprises a laser welding head and a welding box, wherein the laser welding head is connected with a laser through an optical fiber;
the welding box is provided with a butt joint port movably connected with the workpiece rotating component,
the welding box is communicated with the atmosphere cabinet;
the workpiece rotating assembly and the lifting assembly are arranged outside the welding box,
the lifting assembly is connected with the workpiece rotating assembly or the welding box, the lifting assembly is used for attaching or separating the workpiece rotating assembly to or from the interface, and the workpiece rotating assembly is provided with a workpiece clamping device.
2. The apparatus for girth weld laser welding according to claim 1, wherein the outer surface of the welding box comprises an upper end surface and/or a side surface, and the side surface of the welding box is provided with an observation window.
3. The apparatus of claim 1 or 2, wherein the laser welding head is coupled to a laser welding head drive assembly, the laser welding head drive assembly comprising a Z-axis linear module, a Y-axis linear module, and an a-axis rotation module.
4. The apparatus of claim 3, wherein a vacuum pressure gauge and/or an oxygen content tester are disposed in the welding chamber, the vacuum pressure gauge and the oxygen content tester are in communication with an atmosphere cabinet, and a vacuum generating device and/or a shielding gas replacing device are disposed in the atmosphere cabinet.
5. The apparatus of claim 4, wherein the lifting assembly is coupled to the workpiece rotating assembly, and the edge of the docking port is provided with a sealing structure.
6. The device suitable for girth weld laser welding is characterized in that the workpiece rotating assembly comprises an outer sleeve, a rotating shaft, an angular contact ball bearing, a bearing pressing end cover, a servo motor and a mounting seat, the workpiece clamping device is arranged at the upper end of the rotating shaft, the rotating shaft is arranged on the outer sleeve through the angular contact ball bearing and the bearing pressing end cover, the outer sleeve is arranged on the mounting seat, and the lower end of the rotating shaft is connected with the servo motor.
7. The device suitable for girth weld laser welding of claim 6, further comprising an oil seal assembly, wherein the oil seal assembly is arranged on a workpiece rotating assembly, the oil seal assembly comprises a high-pressure air chamber, a pressurizing device and a pair of rotary sealing rings, the pair of rotary sealing rings are arranged on a rotating shaft, the pair of rotary sealing rings are communicated with the high-pressure air chamber, sealing oil is arranged in the high-pressure air chamber, and the upper portion of the high-pressure air chamber is communicated with the pressurizing device.
8. The apparatus of claim 7, further comprising a control assembly comprising a PLC controller connected to the laser, the laser welding head drive assembly, the atmosphere cabinet, the lift assembly, and the servo motor.
9. The apparatus of claim 8, wherein the sealing structure comprises a sealing groove and a sealing ring, the sealing ring is disposed in the sealing groove, and the sealing groove is disposed at an upper end of the outer sleeve or at a rim of the butt joint.
10. The apparatus for laser welding of girth welds as recited in claim 9, wherein the upper portion of said high pressure gas chamber is in communication with a vacuum generating means.
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| CN202020806400.2U CN212682783U (en) | 2020-05-15 | 2020-05-15 | Device suitable for girth weld laser welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111590196A (en) * | 2020-05-15 | 2020-08-28 | 武汉光谷航天三江激光产业技术研究院有限公司 | Device and method suitable for girth weld laser welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111590196A (en) * | 2020-05-15 | 2020-08-28 | 武汉光谷航天三江激光产业技术研究院有限公司 | Device and method suitable for girth weld laser welding |
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