CN117680818A - Multi-station laser welding device for tubular part - Google Patents
Multi-station laser welding device for tubular part Download PDFInfo
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- CN117680818A CN117680818A CN202410140801.1A CN202410140801A CN117680818A CN 117680818 A CN117680818 A CN 117680818A CN 202410140801 A CN202410140801 A CN 202410140801A CN 117680818 A CN117680818 A CN 117680818A
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- shell
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- mirror image
- limiting
- fixedly connected
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- 238000003466 welding Methods 0.000 title claims abstract description 121
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000007789 gas Substances 0.000 claims abstract description 23
- 239000011261 inert gas Substances 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 25
- 238000010168 coupling process Methods 0.000 claims description 25
- 238000005859 coupling reaction Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 24
- 241000463219 Epitheca Species 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 239000013535 sea water Substances 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 29
- 230000008569 process Effects 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 26
- 229910052757 nitrogen Inorganic materials 0.000 description 13
- 230000009471 action Effects 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse 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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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the technical field of laser welding, and provides a multi-station laser welding device for tubular parts. The water pump is installed on the lower shell, the rotating frame is connected with the rotating frame on the upper shell in a sliding mode, the electric sliding rail is installed on the rotating frame on the upper shell, and the electric sliding block in mirror image arrangement is installed on the electric sliding rail. According to the invention, the seawater in the cavity between the upper shell and the lower shell is discharged, and meanwhile, the inert gas in the gas storage shell is injected into the cavity between the upper shell and the lower shell, so that the pressure of seawater in the welding process of the pipeline is eliminated, the pipeline is welded in an original form, the welding effect on the pipeline is improved, the air pressure of a welding area is ensured to be smaller than the standard atmospheric pressure, the scattering of the gas in the laser welding process is reduced, the focusing degree of a laser beam is improved, and the welding precision of the submarine pipeline is improved.
Description
Technical Field
The invention provides a multi-station laser welding device for a tubular part, which belongs to the technical field of laser welding.
Background
The tubular member is widely used in various fields as a common mechanical part, the cylindrical tubular member is generally used for transmitting a series of fluid substances due to the characteristic of small self resistance, the tubular member inevitably passes through regions such as the sea in the transportation process of petroleum or natural gas, the tubular member in the regions is required to be welded and repaired relatively once damaged, when the tubular member is welded in a deep sea region, the tubular member is usually in a pressed state due to the compression of seawater, namely, the tubular member is deformed, in the prior art, only the tubular member under the condition is directly welded, so that a certain stress exists in the welded tubular member all the time, the welding quality is finally reduced, even in the subsequent use process of the tubular member, the welding seam is broken again, the stability of the tubular member in the transportation process of petroleum or natural gas is seriously influenced, meanwhile, the tubular member to be welded region is remained, and if the welding work is directly carried out, the tubular member is corroded in the seawater region, so that the welding effect is reduced.
Disclosure of Invention
The invention aims to provide a multi-station laser welding device for a tubular part, which is used for overcoming the defects that in the prior art, when the tubular part at the sea bottom is directly welded, a certain stress exists on the welded tubular part all the time, so that the stress concentration phenomenon occurs in the welded region of the tubular part, and the welding quality is finally reduced.
The technical scheme is as follows: the utility model provides a tubular part multistation laser welding device, includes the epitheca, the epitheca rotates and is connected with the inferior valve, the epitheca with the inferior valve mutually support, the epitheca is kept away from one side rigid coupling of inferior valve has the gas storage shell, be provided with inert gas in the gas storage shell, the epitheca with the inferior valve all is provided with the through-hole, the water pump is installed to the inferior valve, the epitheca with inferior valve opposite side all sliding connection has the rotating turret, and the mirror image is arranged the rotating turret mutually support, on the epitheca electric slide rail is installed to the rotating turret, electric slide rail installs the electric slide block that the mirror image was arranged, electric slide block rigid coupling has the shell, and the mirror image is arranged between the rotating turret sliding connection has the head rod, inferior valve and mirror image are arranged the rotating turret all with first connecting rod cooperation, the epitheca with the inferior valve all rigid coupling has the observation board, the observation board covers adjacent the through-hole, the shell is installed electric putter, electric putter's end rigid coupling has the first movable plate, the head rod has the power take-up mechanism, the housing is provided with the sealing mechanism.
As the preference of this scheme, power unit is including the motor, the motor install in the epitheca, the output shaft rigid coupling of motor has the driving gear, the rotating turret rigid coupling has half ring gear, mirror image arrangement half ring gear mutually support, mirror image arrangement half ring gear all with the driving gear cooperation.
As the preference of this scheme, ventilation mechanism is including the connection shell, the connection shell rigid coupling in the epitheca is kept away from one side of inferior valve, the connection shell is provided with annular array's connecting hole, the connection shell will the epitheca with the gas storage shell intercommunication, sliding connection has shutoff ring and second movable plate in the connection shell, the shutoff ring with second movable plate rigid coupling, the shutoff ring is located the second movable plate is close to annular array's one side of connecting hole, the second movable plate with the rigid coupling has first elastic element between the connection shell, be provided with spacing subassembly in the connection shell.
Preferably, the air pressure in the air storage shell is larger than the standard atmospheric pressure but smaller than the pressure of the seabed working area, so that inert gas in the air storage shell can normally enter and exit.
As the preference of this scheme, spacing subassembly is including the second connecting rod that the mirror image was arranged, the mirror image is arranged the second connecting rod all the rigid coupling in one side that the second movable plate kept away from the shutoff ring, the second connecting rod is kept away from one end sliding connection of second movable plate has the movable block, the mirror image is arranged the back side of movable block is the inclined plane, the coupling shell is kept away from one side rigid coupling of connecting hole of annular array has the spacing ring, the spacing ring with the mirror image is arranged the movable block all cooperates, the mirror image is arranged rigid coupling has the second elastic element between the movable block, the mirror image is arranged sliding connection has the guide bar between the movable block, the mirror image is arranged sliding connection has the kickboard between the second connecting rod, the kickboard rigid coupling has the gag lever post that the mirror image was arranged, the movable block is provided with first spacing groove, first spacing groove and adjacent the gag lever post cooperation.
As the preference of this scheme, sealing mechanism is including the rotation board that the mirror image was arranged, the mirror image is arranged the rotation board is all rotated and is connected in the adjacent shell, the mirror image is arranged the rotation board is all with the adjacent shell cooperation, the rotation board is close to the adjacency one side rigid coupling of first movable plate has the pole setting, the pole setting is kept away from the adjacency the one end rotation of rotation board is connected with the stopper, first movable plate is provided with the guide way that the mirror image was arranged, the stopper is adjacent in the guide way internal slip.
As the preference of this scheme, still including mirror image arrangement's mechanism of absorbing water, mirror image arrangement's mechanism of absorbing water sets up respectively in adjacent first movable plate, mechanism of absorbing water is including mirror image arrangement's lack gear, mirror image arrangement lack gear all rotate connect in adjacent first movable plate, lack gear rigid coupling has the dwang, the dwang keep away from adjacent lack gear's one end sliding connection has the sliding block, mirror image arrangement rotate between the sliding block and be connected with the roller that absorbs water, first movable plate sliding connection has the limiting plate of mirror image arrangement, mirror image arrangement the opposite side of limiting plate all rigid coupling has the rack, the rigid coupling has third elastic element between dwang and the adjacent the sliding block, the rack with adjacent lack gear engagement, first movable plate is provided with trigger assembly.
As the preference of this scheme, trigger assembly is including the slide bar that the mirror image was arranged, the mirror image is arranged the equal sliding connection of slide bar is in adjacent first movable plate, the one end of slide bar is provided with the boss, the boss of slide bar with adjacent first movable plate cooperation, the other end rigid coupling of slide bar has the moving part, the moving part keeps away from adjacent the one end rotation of slide bar is connected with the runner, and the mirror image is arranged the equal rigid coupling of opposite side of slide bar has the spacing post, the limiting plate is provided with the second spacing groove, the second spacing groove with adjacent spacing post cooperation, the epitheca with the inferior valve is provided with the subassembly that intakes jointly.
As the preference of this scheme, the subassembly that intakes is including annular array's water shell, annular array water shell rigid coupling respectively in the epitheca with the inferior valve, the epitheca with the inferior valve is through adjacent water shell and external intercommunication, install the solenoid valve in the water shell.
Preferably, the axis of the annular array of the water passing shells intersects the axis of the turret for pre-cooling the welded tubular member.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the seawater in the cavity between the upper shell and the lower shell is discharged through the water pump, meanwhile, inert gas in the gas storage shell is injected into the cavity between the upper shell and the lower shell, so that the pressure of seawater in the welding process of the pipeline is eliminated, the pipeline is welded in an original form, the welding effect on the pipeline is improved, the air pressure of a welding area is ensured to be smaller than the standard atmospheric pressure, the scattering of the gas in the laser welding process is reduced, the focusing degree of a laser beam is improved, and the welding precision of the submarine pipeline is improved; welding the pipelines through the welding parts which are arranged in a mirror image mode, so that the welding time of the pipelines is shortened, and the welding efficiency of the pipelines is improved; in the process of entering the cavity between the upper shell and the lower shell through seawater, nitrogen is continuously injected into the gas storage shell, so that the recovery of the nitrogen is completed on the premise of ensuring that the pressure of the cavity between the upper shell and the lower shell is similar to that of the outside, the separation between the device and the pipeline after the welding is completed is facilitated, and the efficiency of the device in use is improved; the adjacent gear-missing wheels are driven to rotate through the racks, so that the residual seawater in the welding area of the pipeline is adsorbed by the water absorbing roller all the time in the welding process, and the corrosion of the salt in the seawater to the pipeline in the welding area in a high-temperature environment is avoided, so that the effect of welding the pipeline is improved; in the process that seawater enters the cavity between the upper shell and the lower shell, the seawater is in contact with a non-welding area of the pipeline and cools the non-welding area, and then the welding area is indirectly cooled through heat transfer of the pipeline, so that the welding area of the pipeline is prevented from being in direct contact with the seawater, the stress of the welding area caused by rapid cooling of the pipeline is not eliminated, and the welding quality is reduced.
Drawings
FIG. 1 is a schematic perspective view of the whole structure of the present invention;
FIG. 2 is a schematic perspective view of the upper shell and its upper parts according to the present invention;
FIG. 3 is a perspective cross-sectional view of the upper shell of the present invention;
FIG. 4 is a perspective structural sectional view of the upper and lower cases of the present invention;
FIG. 5 is an enlarged view of the perspective structure of FIG. 4A in accordance with the present invention;
FIG. 6 is an enlarged view of the perspective structure of the present invention at B in FIG. 4;
FIG. 7 is an exploded view of the second moving plate and its upper parts in a perspective configuration according to the present invention;
FIG. 8 is a schematic perspective view of a first movable plate and parts thereon according to the present invention;
FIG. 9 is a schematic perspective view of a first moving plate and another component thereon according to the present invention;
FIG. 10 is an exploded view of the perspective structure of the parts on the first moving plate of the present invention;
FIG. 11 is a schematic perspective view of the water passing shell and its inner parts.
In the reference numerals: 1-upper shell, 2-lower shell, 3-gas storage shell, 4-through hole, 5-water pump, 6-rotating frame, 7-electric slide rail, 8-electric slide block, 9-shell, 10-first connecting rod, 11-observation plate, 12-electric push rod, 13-first moving plate, 14-weldment, 1501-motor, 1502-driving gear, 1503-half gear ring, 1601-connecting shell, 1602-connecting hole, 1603-blocking ring, 1604-second moving plate, 1605-first elastic element, 1701-second connecting rod, 1702-moving block, 1703-limiting ring, 1704-second elastic element, 1705-guide rod, 1706-floating plate, 1707-limiting rod, 1708-first limiting groove, 1801-rotating plate, 1802-vertical rod, 1803-limiting block, 1804-guide groove, 1901-gear-absence, 1902-rotating rod, 1903-sliding block, 1904-water absorbing roller, 1905-limiting plate, 1906-rack, 1907-third elastic element, 2001-limiting rod, 2005-first limiting groove, 1801-limiting groove, 1902-second elastic element, 2101-limiting groove, 2101-electromagnetic valve.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized below, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein the detailed description sets forth the best mode of the invention, but which are intended to be carried out in many different ways than those herein set forth, and wherein like modifications may be made by those skilled in the art without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
Example 1: a multi-station laser welding device for tubular parts, as shown in figures 1-5 and 8, comprises an upper shell 1, a lower shell 2 matched with the upper shell 1 is rotationally connected to the rear side of the upper shell 1, the upper shell 1 and the lower shell 2 are composed of a shell and a handle, when the upper shell 1 and the lower shell 2 are matched, a cavity is formed between the upper shell 1 and the lower shell 2, the upper shell 1 and the lower shell 2 are arranged in a vertical mirror image mode, a gas storage shell 3 is fixedly connected to the middle part of the upper side of the upper shell 1, inert gas is arranged in the gas storage shell 3, the inert gas is nitrogen, the volume of the gas storage shell 3 is one third of the volume of the cavity between the upper shell 1 and the lower shell 2, nitrogen in the gas storage shell 3 is transferred into the cavity between the upper shell 1 and the lower shell 2, so that a welding area of a pipeline is relatively dry, a better environment is provided for the welding area, and further the welding effect on a submarine pipeline is improved, the upper shell 1 and the lower shell 2 are respectively provided with two groups of through holes 4 which are arranged in a front-back mirror image mode, each group comprises a plurality of evenly arranged through holes, the middle part of the lower side of the lower shell 2 is provided with a water pump 5, opposite sides of the upper shell 1 and the lower shell 2 are respectively connected with a rotating frame 6 in a sliding mode, the two rotating frames 6 are mutually matched, the rotating frames 6 on the lower side are extruded to synchronously rotate when the rotating frames 6 on the upper side rotate, the rotating frames 6 on the upper shell 1 are respectively provided with an electric sliding rail 7, the electric sliding rails 7 are respectively provided with two electric sliding blocks 8 which are arranged in a left-right mirror image mode, the lower sides of the two electric sliding blocks 8 are respectively fixedly connected with a shell 9, three first connecting rods 10 which are arranged at equal intervals are connected between the two rotating frames 6 in a sliding mode, the lower shell 2 and the two rotating frames 6 are matched with the first connecting rods 10, the rotating frames 6 on the lower side are limited through the three first connecting rods 10, namely the deflection angle of the lower shell 2 relative to the upper shell 1 is limited, prevent that inferior valve 2 turned angle is too big to lead to it to break away from with adjacent rotating turret 6 to influence the normal use of device, upper shell 1 and inferior valve 2 all rigid coupling have two observation boards 11 that the front and back mirror image was arranged, observation board 11 is high strength glass, observation board 11 covers adjacent through-hole 4, the staff of being convenient for observes the welding condition in the welding process, electric putter 12 is installed to the upside in shell 9, electric putter 12's flexible end rigid coupling has first movable plate 13, welding piece 14 is installed to the downside of first movable plate 13, welding piece 14 is current laser welding equipment (for the convenience of description, do not make excessive description to careful welding principle any more), upper shell 1 is provided with power unit, upper shell 1 is provided with ventilation mechanism, shell 9 is provided with sealing mechanism.
As shown in fig. 4 and 5, the power mechanism includes a motor 1501, the motor 1501 is mounted on the left side in the upper case 1, an output shaft of the motor 1501 is fixedly connected with a driving gear 1502, a rotating frame 6 is fixedly connected with a half gear ring 1503, two half gear rings 1503 arranged in a mirror image manner up and down are mutually matched, the two half gear rings 1503 are matched to form a complete gear ring, the two half gear rings 1503 are matched with the driving gear 1502, and the two half gear rings 1503 in a matched state are driven to rotate together when the driving gear 1502 rotates.
As shown in fig. 4, fig. 6 and fig. 7, the ventilation mechanism includes a connection shell 1601, the connection shell 1601 is fixedly connected to the middle of the upper side of the upper shell 1, the air pressure in the air storage shell 3 is three times of the standard air pressure but less than the pressure in the seabed working area, and is used for making inert gas in the air storage shell 3 normally enter and exit, using the negative pressure environment formed after nitrogen in the air storage shell 3 enters the cavity between the upper shell 1 and the lower shell 2, so that the scattering of the laser welding receiving gas is reduced, the focal power of the laser beam is improved, and the welding precision of the pipeline is further improved, four connection holes 1602 are arranged on the upper side of the connection shell 1601, the connection shell 1601 communicates the upper shell 1 with the air storage shell 3, a blocking ring 1603 and a second moving plate 1604 are connected in a sliding manner in the connection shell 1601, the blocking ring 1603 and the second moving plate 1604 are fixedly connected, the blocking ring 1603 is made of elastic rubber material and is initially in a compressed state, the blocking ring 1603 is located on the upper side of the second moving plate 1604, two first elastic elements 5 arranged between the second moving plate and the connection shell 1601 are fixedly connected with the first elastic elements 160 in a mirror image state, and the first elastic elements are in the compressed state, and the first elastic elements 1605 are arranged in the compression state.
As shown in fig. 6 and 7, the limiting component includes two second connecting rods 1701 arranged in a left-right mirror image manner, the two second connecting rods 1701 are fixedly connected to the lower sides of the second moving plates 1604, the lower ends of the second connecting rods 1701 are slidably connected with moving blocks 1702, the opposite sides of the two moving blocks 1702 are inclined planes, the distance between the two inclined planes is gradually reduced from top to bottom, the lower side of the connecting shell 1601 is fixedly connected with limiting rings 1703 matched with the two moving blocks 1702, the two moving blocks 1702 are extruded in the downward moving process through the limiting rings 1703, so that the two moving blocks 1702 move oppositely, a second elastic element 1704 is fixedly connected between the two moving blocks 1702, the second elastic element 1704 is a spring, a guide rod 1705 is slidably connected between the two moving blocks 1702, a floating plate 1706 is slidably connected between the two second connecting rods 1701, the density of the floating plate 1706 is smaller than that of seawater, the floating plate is fixedly connected with two limiting rods 1707 arranged in a left-right mirror image manner, the moving blocks 1702 are provided with first limiting grooves 1708 matched with the limiting rods 1707 in a downward moving manner, and the distance between the two limiting grooves 1708 are gradually reduced from top to bottom when the two limiting rods 1708 move upwards.
As shown in fig. 5 and 8, the sealing mechanism comprises two rotating plates 1801 arranged in a left-right mirror image manner, the two rotating plates 1801 are connected to adjacent shells 9 in a rotating manner, the two rotating plates 1801 are in sealing fit with the adjacent shells 9, when the two rotating plates 1801 are in a fit state with the adjacent shells 9, the shells 9 are isolated from the outside, the front part of the upper side of the rotating plates 1801 is fixedly connected with a vertical rod 1802, the upper end of the vertical rod 1802 is rotationally connected with a limiting block 1803, the first moving plate 13 is provided with two guide grooves 1804 arranged in a left-right mirror image manner, the limiting block 1803 slides in the adjacent guide grooves 1804, and is matched with the adjacent shells 9 through the adjacent two rotating plates 1801, so that the welding piece 14 is kept isolated from seawater before the welding work of the welding piece 14 begins, and the welding piece 14 is prevented from being corroded by seawater for a long time, and damage is caused to electrical elements in the welding piece.
When the device is needed to repair and weld submarine pipelines, a worker firstly places the device on a transport ship, then the worker transports the device to a working area through the transport ship, then the worker carries the device to descend together until the device reaches the pipeline area to be welded, then the worker rotates the lower shell 2 downwards (clockwise, left-hand direction) until the included angle between the upper shell 1 and the lower shell 2 reaches 30 degrees, then the rotation is stopped, at the moment, three first connecting rods 10 limit the rotating frame 6 at the lower side, namely limit the deflection angle of the lower shell 2 relative to the upper shell 1, prevent the lower shell 2 from being separated from the adjacent rotating frame 6 due to overlarge rotation angle, thereby influence the normal use of device, then the staff takes upper shell 1 on the pipeline that waits to weld, and move upper shell 1 about, make upper shell 1 wrap up the region that waits to weld, stop moving after upper shell 1 wraps up the region that waits to weld, the staff holds the handle of downside and rotates lower shell 2 anticlockwise, lower shell 2 drives rotating frame 6 and rotates anticlockwise together, rotating frame 6 drives adjacent half ring gear 1503 and rotates anticlockwise together, stop after lower shell 2 anticlockwise rotates 30, at this moment, all be in the cooperation state between two rotating frames 6 and between two half ring gear 1503, then the staff uses the bolt to fix upper shell 1 and lower shell 2, and make the cavity that forms between upper shell 1 and the lower shell 2 and external isolation.
After fixing the upper shell 1 and the lower shell 2, a worker starts the water pump 5, the water pump 5 gradually discharges the seawater in the cavity between the upper shell 1 and the lower shell 2, the water level in the cavity between the upper shell 1 and the lower shell 2 gradually decreases, the pressure in the cavity between the upper shell 1 and the lower shell 2 gradually decreases, the second moving plate 1604 starts to move downwards and extrudes the two first elastic elements 1605 under the action of pressure change in the cavity between the upper shell 1 and the lower shell 2, the second moving plate 1604 drives the blocking ring 1603 to move downwards together, the deformation of the blocking ring 1603 gradually decreases, and when the blocking ring 1603 deforms to be insufficient for blocking the four connecting holes 1602, nitrogen in the gas storage shell 3 enters the cavity between the upper shell 1 and the lower shell 2 through the four connecting holes 1602.
In the process that the second moving plate 1604 moves downwards, the second moving plate 1604 drives the two second connecting rods 1701 to move downwards together, the second connecting rods 1701 drive the adjacent moving blocks 1702 to move downwards together, the moving blocks 1702 drive the adjacent limiting rods 1707 to move downwards together, the two limiting rods 1707 drive the floating plates 1706 to move downwards together, when the two moving blocks 1702 move downwards to be in contact with the limiting rings 1703, the limiting rings 1703 start to press the inclined surfaces of the two moving blocks 1702 along with the continuous downwards movement of the second moving plate 1604, then the two moving blocks 1702 start to move oppositely and compress the second elastic elements 1704, when the second moving plate 1702 moves downwards to the position limiting rings 1703, the limiting rings 1703 lose limiting of the two moving blocks 1702, then the two moving blocks 1702 start to move backwards under the action of elastic force of the second elastic elements 1704, and after the second elastic elements 1704 are completely reset, the limiting rings 1703 limit the two moving blocks 1702 again (the two moving blocks 1702 cannot move upwards).
As the water pump 5 continuously works and discharges the seawater in the cavity between the upper shell 1 and the lower shell 2, the nitrogen in the gas storage shell 3 continuously enters the cavity between the upper shell 1 and the lower shell 2 until the water pump 5 completely discharges the seawater in the cavity between the upper shell 1 and the lower shell 2, then a worker turns off the water pump 5, transfers the nitrogen in the gas storage shell 3 into the cavity between the upper shell 1 and the lower shell 2, so that the welding area of the pipeline is relatively dry, a better environment is provided for the welding area, the welding effect on the submarine pipeline is improved, the pipeline is isolated from the seawater, the pressure of the seawater in the welding process is eliminated, the pipeline is welded in an original form, the welding effect on the pipeline is improved, the service life of the welded pipeline is further improved, and simultaneously, after the discharge of the seawater in the cavity between the upper shell 1 and the lower shell 2 is completed, the atmospheric pressure in the cavity between the upper shell 1 and the lower shell 2 is less than the standard atmospheric pressure, the laser beam scattering accuracy of the laser beam in the welding process is reduced, and the laser beam welding accuracy on the submarine pipeline is further improved.
Then, the worker starts the two electric sliders 8, the two electric sliders 8 start to move oppositely along the electric slide rail 7, the electric sliders 8 drive the adjacent outer shells 9 to move together, the outer shells 9 drive the adjacent electric push rods 12 to move together, the electric push rods 12 drive the adjacent first moving plates 13 to move together, the first moving plates 13 drive the adjacent welding pieces 14 to move together, after the welding pieces 14 move to the position right above the area to be welded, the worker closes the two electric sliders 8 and starts the two electric push rods 12, the telescopic ends of the two electric push rods 12 start to move downwards, the telescopic ends of the electric push rods 12 drive the adjacent first moving plates 13 to move downwards together, the first moving plates 13 drive the adjacent welding pieces 14 and the adjacent two limiting blocks 1803 to move downwards together, the limiting blocks 1803 drive the adjacent vertical rods 1802 to move downwards together, and the adjacent vertical rods 1802 start to deflect backwards, the adjacent rotating plates 1801 are driven by the vertical rods 1802 to deflect together, during the deflection process of the rotating plates 1801, the adjacent two limiting blocks 1803 start to move oppositely along the adjacent guide grooves 1804, after the adjacent two vertical rods 1802 deflect to the adjacent quarter point of the circular moving track, the adjacent two limiting blocks 1803 move to the opposite ends of the adjacent two guide grooves 1804, along with the continuous deflection of the vertical rods 1802, the adjacent two limiting blocks 1803 start to move reversely along the adjacent guide grooves 1804, after the adjacent two rotating plates 1801 are completely opened, the adjacent two limiting blocks 1803 move to the opposite ends of the adjacent two guide grooves 1804, then the two weldments 14 respectively move to the positions to be welded, the adjacent two rotating plates 1801 are matched with the adjacent outer shell 9 in a mirror image mode, so that the isolation from seawater is kept before the welding work of the weldments 14 starts, the welding member 14 is prevented from being corroded by seawater for a long time, and electrical components in the welding member are damaged, so that the normal operation of the submarine pipeline welding work is affected.
Then the worker turns off the two electric push rods 12 and starts the motor 1501 and the welding piece 14, the output shaft of the motor 1501 starts to rotate clockwise, the output shaft of the motor 1501 drives the driving gear 1502 to rotate clockwise, the driving gear 1502 drives the adjacent half gear ring 1503 to rotate clockwise, the half gear ring 1503 drives the adjacent rotating frame 6 to rotate clockwise, the rotating frame 6 on the upper side drives the electric slide rail 7 to rotate clockwise, the electric slide rail 7 drives the two electric slide blocks 8 and the upper parts thereof to rotate clockwise, then the welding piece 14 which moves circularly welds the submarine pipeline, after the welding piece 14 rotates clockwise for 360 degrees, the worker turns off the motor 1501 and the welding piece 14 and starts the two electric push rods 12, the telescopic ends of the two electric push rods 12 start to move upwards, the telescopic ends of the electric push rods 12 drive the adjacent first moving plate 13 and the upper parts thereof to move upwards, in the process that the first moving plate 13 and the upper parts thereof move upwards, the two adjacent rotating plates 1801 which are arranged in a mirror image way are closed together, the adjacent shell 9 is closed again, after the telescopic end of the electric push rod 12 is completely reset, a worker closes the two electric push rods 12 and starts the motor 1501, the output shaft of the motor 1501 starts to rotate anticlockwise, the output shaft of the motor 1501 drives the driving gear 1502 to rotate anticlockwise together, the driving gear 1502 drives the adjacent half gear ring 1503 to rotate anticlockwise together, the half gear ring 1503 drives the adjacent rotating frame 6 and the upper parts thereof to rotate anticlockwise together until the two rotating frames 6 and the upper parts thereof are completely reset, the worker closes the motor 1501, and simultaneously welds the pipelines through the two welding pieces 14, so that the welding time is halved, and the working time of the worker on the sea floor is reduced, the protection to staff is enhanced while improving the welding efficiency of the pipeline.
After the welding work is completed, the water pump 5 is restarted by a worker, the water pump 5 starts to work and pumps external seawater into the cavity between the upper shell 1 and the lower shell 2, the pressure in the cavity between the upper shell 1 and the lower shell 2 gradually rises along with the continuous rising of the liquid level in the cavity between the upper shell 1 and the lower shell 2 and the nitrogen in the cavity is pressed into the air storage shell 3 again, when the liquid level in the cavity between the upper shell 1 and the lower shell 2 rises to be in contact with the floating plate 1706, the floating plate 1706 starts to move upwards along with the rising of the liquid level under the action of the buoyancy of the floating plate 1706, the floating plate 1706 drives the two limiting rods 1707 to move upwards together, the limiting rods 1707 start to slide in the adjacent first limiting grooves 1708 and squeeze the adjacent moving blocks 1702, then the two moving blocks 1702 start to move oppositely and compress the second elastic element 1704, and after the two moving blocks 1702 move oppositely to lose the limit of the limiting ring 1703, the second moving plate 1604 moves upwards under the action of the elastic force of the two first elastic elements 1605, the second moving plate 1604 drives the plugging ring 1603 and parts thereon to move upwards together until the plugging ring 1603 plugs the four connecting holes 1602 again, at that time, seawater fills the cavity between the upper shell 1 and the lower shell 2 and nitrogen reenters the air storage shell 3, nitrogen is continuously injected into the air storage shell 3 in the process of entering the cavity between the upper shell 1 and the lower shell 2 through seawater, so that the recovery of the nitrogen is completed on the premise of ensuring that the cavity between the upper shell 1 and the lower shell 2 is similar to the external pressure, the detachment between the device and the pipeline after the welding is finished is facilitated, the efficiency of the device in use is improved, the nitrogen is recycled, the use cost of the device is reduced, a worker turns off the water pump 5 and screws for fixing the upper shell 1 and the lower shell 2 down, then the worker rotates the lower shell 2 downwards, stopping rotating until the included angle between the upper shell 1 and the lower shell 2 reaches 30 degrees, and then taking down the whole device from the welded pipeline by a worker and taking the device away.
Example 2: on the basis of embodiment 1, as shown in fig. 8 and 9, the device further comprises two water absorbing mechanisms arranged in a left-right mirror mode, the two water absorbing mechanisms are respectively arranged on the lower sides of the adjacent first moving plates 13, the two water absorbing mechanisms comprise two gear-lack wheels 1901 arranged in a left-right mirror mode, the two gear-lack wheels 1901 are all rotationally connected to the adjacent first moving plates 13, a rotating rod 1902 is fixedly connected to the lower sides of the gear-lack wheels 1901, sliding blocks 1903 are slidingly connected to the lower ends of the rotating rod 1902, a water absorbing roller 1904 is rotationally connected between the two sliding blocks 1903, the water absorbing roller 1904 is used for absorbing residual seawater in a welding area, the first moving plates 13 are slidingly connected with two limiting plates 1905 arranged in a left-right mirror mode, racks 1906 meshed with the adjacent gear-lack wheels 1901 are fixedly connected to the opposite sides of the two limiting plates 1905, a third elastic element 1907 is fixedly connected between the rotating rod 1902 and the adjacent sliding blocks 1903, the third elastic element 1907 is a spring, the third elastic element 1907 is used for providing a pipe absorbing roller 1904 in a welding process, the welding process is continuously performed in the welding process, the pipe absorbing roller 1904 is provided with a high-temperature, the residual seawater is prevented from being corroded by the pipe assembly in the welding process, and the welding area is continuously caused by the pipe-absorbing roller welding area is continuously, and the high-temperature welding area is avoided.
As shown in fig. 9 and 10, the trigger assembly includes two slide bars 2001 disposed in a left-right mirror image manner, the two slide bars 2001 are both slidably connected to the adjacent first moving plates 13, a boss matched with the adjacent first moving plate 13 is disposed at an upper end of each slide bar 2001, the slide bars 2001 are driven to move upward together after the first moving plate 13 moves upward and contacts with the boss of the adjacent slide bar 2001, a moving member 2002 is fixedly connected to a lower end of each slide bar 2001, a rotating wheel 2003 is rotatably connected to a lower end of each moving member 2002, limiting columns 2004 are fixedly connected to opposite sides of the two slide bars 2001, a limiting plate 1905 is provided with a second limiting groove 2005 in limiting fit with the adjacent limiting column 2004, and the adjacent limiting plate 1905 is extruded in a vertical moving process through the limiting columns 2004, so that the limiting plate 1905 moves forward and backward, and the upper shell 1 and the lower shell 2 are jointly provided with a water inlet assembly.
As shown in fig. 11, the water inlet assembly includes four sets of water passing shells 2101 in an annular array, the four sets of water passing shells 2101 are fixedly connected to the upper shell 1 and the lower shell 2 respectively, each set of water passing shells 2101 includes two water passing shells arranged in a left-right mirror image manner, eight water passing shells 2101 are respectively positioned at the opposite sides of two welding parts 14, so that when seawater enters a cavity between the upper shell 1 and the lower shell 2, the upper shell 1 and the lower shell 2 are prevented from being directly contacted with a welding area, the adjacent water passing shells 2101 are communicated with the outside, the axes of the four water passing shells 2101 are intersected with the axis of the rotating frame 6 and are used for pre-cooling welded tubular parts, the seawater entering the cavity between the upper shell 1 and the lower shell 2 from the water passing shells 2101 is used for cooling a pipeline which generates high temperature due to welding, the welding area of the pipeline is prevented from being directly contacted with the seawater, the stress of the welding area cannot be eliminated due to rapid cooling of the pipeline, so that the welding quality is reduced, and the electromagnetic valve 2102 is installed in the water passing shells 2101.
In the process of downward movement of the first moving plate 13, the first moving plate 13 drives two adjacent and mirror-arranged gear-lack wheels 1901, two adjacent and mirror-arranged limiting plates 1905 and two adjacent and mirror-arranged sliding rods 2001 to move downward together, the gear-lack wheels 1901 drive the adjacent rotating rods 1902 to move downward together, the rotating rods 1902 drive the adjacent sliding blocks 1903 to move downward together, the adjacent and mirror-arranged sliding blocks 1903 drive the adjacent water absorbing rollers 1904 to move downward together, the limiting plates 1905 drive the adjacent racks 1906 to move downward together, the sliding rods 2001 drive the adjacent moving members 2002 and the adjacent limiting columns 2004 to move downward together, the moving members 2002 drive the adjacent rotating wheels 2003 to move downward together, and the rotating wheels 2003 stop moving downward after the water absorbing rollers 1904 and the rotating wheels 2003 move downward to be in contact with a pipeline.
As the first moving plate 13 continues to move downward, the two adjacent and mirror-arranged slide bars 2001 slide upward relative to the adjacent first moving plate 13, the limiting post 2004 starts to slide in the adjacent second limiting groove 2005 and presses the adjacent limiting plate 1905, then the limiting plate 1905 starts to slide backward along the adjacent first moving plate 13, the limiting plate 1905 drives the adjacent rack 1906 to move backward together, the rack 1906 drives the adjacent gear lack 1901 to rotate counterclockwise, the gear lack 1901 drives the adjacent rotating rod 1902 to rotate counterclockwise together, the rotating rod 1902 drives the adjacent slide block 1903 to rotate counterclockwise together, the adjacent two mirror-arranged slide blocks 1903 together drive the adjacent suction roller 1904 to rotate counterclockwise together, because the distance that the suction roller 1904 moves downward along with the adjacent first moving plate 13 in unit time is greater than the distance that the suction roller 1904 moves upward along with the adjacent rotating rod 1902 when rotating counterclockwise, so the water absorbing roller 1904 starts to move upwards under the extrusion of the pipeline, the water absorbing roller 1904 drives two adjacent and mirror-image arranged sliding blocks 1903 to move upwards together, the sliding blocks 1903 and the adjacent rotating rods 1902 slide relatively and squeeze the adjacent third elastic elements 1907 until the welding piece 14 moves downwards to the welding area, and then the worker closes the two electric push rods 12, at this moment, the water absorbing roller 1904 is tightly attached to the welding area of the pipeline all the time under the elastic force of the adjacent third elastic elements 1907, so that the water absorbing roller 1904 continuously absorbs the residual seawater in the welding area of the pipeline in the subsequent welding process, and the corrosion of the pipeline in the welding area caused by salt in the seawater in the high-temperature environment is avoided, thereby reducing the welding effect.
Then, in the welding process, the water absorbing roller 1904 moves circumferentially along the area to be welded of the pipeline and absorbs the residual seawater in the area to be welded, so that gas scattering is prevented from being generated due to the fact that the seawater is evaporated at high temperature in the welding process, the focusing degree of a laser beam is affected, the welding precision and quality are reduced until the pipeline is welded, in the process that the first moving plate 13 moves upwards, the sliding rod 2001 is kept still under the action of self gravity, then the limiting posts 2004 start to press the adjacent limiting plates 1905, the limiting plates 1905 start to move forwards, the limiting plates 1905 drive the adjacent racks 1906 to move forwards together, the racks 1906 drive the adjacent rotating rods 1902 to rotate clockwise, and the sliding block 1903 starts to slide downwards relative to the adjacent rotating rods 1902 under the action of elastic force of the adjacent third elastic elements 1907 until the first moving plate 13 moves upwards until parts on the first moving plate are completely reset.
After the welding is completed, the staff starts the four electromagnetic valves 2102, external seawater starts to enter the cavity between the upper shell 1 and the lower shell 2 under the action of water pressure, the seawater entering the cavity between the upper shell 1 and the lower shell 2 is sprayed to the adjacent area (non-welding area) of the pipeline and cooled down, then the heat transfer carried out on the pipeline by the pipeline self is carried out to cool down the welding area of the pipeline, as the seawater is in heat exchange with the welding area of the pipeline in an indirect way, the seawater does not directly affect the welding area of the pipeline, the seawater enters the cavity between the upper shell 1 and the lower shell 2 from the adjacent water passing shell 2101, so that the pressure in the cavity between the upper shell 1 and the lower shell 2 is the same as the external pressure, the device is convenient to disassemble the pipeline later, and meanwhile, the seawater entering the cavity between the upper shell 1 and the lower shell 2 cools down the pipeline which generates high temperature due to welding (the area where the seawater is in contact with the pipeline is the non-welding area), so that the stress of the welding area of the pipeline cannot be eliminated due to rapid cooling down.
It will be apparent to those skilled in the art that the present invention has been described in detail by way of illustration only, and it is not intended to be limited by the above-described embodiments, as long as various insubstantial modifications of the method concepts and aspects of the invention are employed or the inventive concepts and aspects of the invention are directly applied to other applications without modification, all within the scope of the invention.
Claims (10)
1. The utility model provides a tubular part multistation laser welding device, its characterized in that, including epitheca (1), epitheca (1) rotate and are connected with inferior valve (2), epitheca (1) with inferior valve (2) are mutually supported, epitheca (1) keep away from one side rigid coupling of inferior valve (2) has gas storage shell (3), be provided with inert gas in gas storage shell (3), epitheca (1) with inferior valve (2) all are provided with through-hole (4), inferior valve (2) install water pump (5), epitheca (1) with inferior valve (2) are all sliding connection in opposite side has rotating turret (6), and the mirror image is arranged rotating turret (6) mutually support, electric slide rail (7) are installed to rotating turret (6) on epitheca (1), electric slide rail (8) rigid coupling has shell (9), and sliding connection has first frame (10) between rotating turret (6) that the mirror image is arranged, connecting rod (10) are arranged with down connecting rod (2) and connecting rod (2) are all fixed with each other, the observation plate (11) covers adjacent through holes (4), the shell (9) is provided with an electric push rod (12), a first moving plate (13) is fixedly connected to the telescopic end of the electric push rod (12), a welding piece (14) is arranged on the first moving plate (13), the upper shell (1) is provided with a power mechanism, the upper shell (1) is provided with a ventilation mechanism, and the shell (9) is provided with a sealing mechanism.
2. The multi-station laser welding device for the tubular part according to claim 1, wherein the power mechanism comprises a motor (1501), the motor (1501) is installed on the upper shell (1), a driving gear (1502) is fixedly connected to an output shaft of the motor (1501), a half gear ring (1503) is fixedly connected to the rotating frame (6), the half gear rings (1503) in mirror image arrangement are mutually matched, and the half gear rings (1503) in mirror image arrangement are matched with the driving gear (1502).
3. The multi-station laser welding device for the tubular part according to claim 1, wherein the ventilation mechanism comprises a connecting shell (1601), the connecting shell (1601) is fixedly connected to one side, away from the lower shell (2), of the upper shell (1), the connecting shell (1601) is provided with a connecting hole (1602) of an annular array, the connecting shell (1601) is communicated with the upper shell (1) and the air storage shell (3), a blocking ring (1603) and a second moving plate (1604) are slidably connected in the connecting shell (1601), the blocking ring (1603) is fixedly connected with the second moving plate (1604), the blocking ring (1603) is located on one side, close to the connecting hole (1602) of the annular array, of the second moving plate (1604) and the connecting shell (1601), a first elastic element (1605) is fixedly connected between the second moving plate (1604) and the connecting shell (1601), and a limiting assembly is arranged in the connecting shell (1601).
4. A tubular member multistation laser welding apparatus according to claim 1 wherein the gas pressure in the gas storage housing (3) is greater than normal atmospheric pressure but less than the pressure in the seabed working area for normally feeding and discharging inert gas in the gas storage housing (3).
5. A tubular part multi-station laser welding device according to claim 3, wherein the limiting component comprises a second connecting rod (1701) which is arranged in a mirror image mode, the second connecting rods (1701) which are arranged in a mirror image mode are fixedly connected to one side, far away from the blocking ring (1603), of the second moving plate (1604), one end, far away from the second moving plate (1604), of the second connecting rod (1701) is slidably connected with a moving block (1702), the opposite sides, far away from the connecting holes (1602), of the moving block (1702) are inclined surfaces, one side, far away from the annular array, of the connecting shell (1601) is fixedly connected with a limiting ring (1703), the limiting ring (1703) is matched with the moving block (1702) which is arranged in a mirror image mode, second elastic elements (1704) are fixedly connected between the moving blocks (1702) which are arranged in a mirror image mode, guide rods (1705) are slidably connected between the second connecting rods (1701) which are arranged in a mirror image mode, the floating plates (1706) are slidably connected with one another, and the limiting rods (1708) are fixedly connected with the limiting groove (1708) which is arranged in a mirror image mode.
6. The multi-station laser welding device for the tubular piece according to claim 1, wherein the sealing mechanism comprises rotating plates (1801) which are arranged in a mirror image mode, the rotating plates (1801) which are arranged in a mirror image mode are all connected to the adjacent shells (9) in a rotating mode, the rotating plates (1801) which are arranged in a mirror image mode are matched with the adjacent shells (9), one sides, close to the adjacent first moving plates (13), of the rotating plates (1801) are fixedly connected with vertical rods (1802), one ends, far away from the adjacent rotating plates (1801), of the vertical rods (1802) are connected with limiting blocks (1803) in a rotating mode, and the first moving plates (13) are provided with guiding grooves (1804) which are arranged in a mirror image mode, and the limiting blocks (1803) slide in the adjacent guiding grooves (1804).
7. The multi-station laser welding device for the tubular part according to claim 1, further comprising a mirror-image arranged water absorbing mechanism, wherein the mirror-image arranged water absorbing mechanisms are respectively arranged on the adjacent first moving plates (13), the mirror-image arranged water absorbing mechanism comprises mirror-image arranged gear-missing wheels (1901), the mirror-image arranged gear-missing wheels (1901) are rotationally connected to the adjacent first moving plates (13), a rotating rod (1902) is fixedly connected to the gear-missing wheels (1901), a sliding block (1903) is slidingly connected to one end, far away from the adjacent gear-missing wheels (1901), of the rotating rod (1902), a water absorbing roller (1904) is rotationally connected between the sliding blocks (1903) in the mirror-image arrangement, a mirror-image arranged limiting plate (1905) is slidingly connected to the first moving plates (1905), racks (1906) are fixedly connected to opposite sides of the mirror-image arranged limiting plate (1905), a third elastic element (1907) is fixedly connected between the rotating rod (1902) and the adjacent sliding blocks (1903), and the racks (1906) are meshed with the adjacent first moving plates (1901).
8. The multi-station laser welding device for the tubular part according to claim 7, wherein the triggering component comprises a slide bar (2001) which is arranged in a mirror image mode, the slide bar (2001) which is arranged in a mirror image mode is connected to the adjacent first movable plate (13) in a sliding mode, one end of the slide bar (2001) is provided with a boss, the boss of the slide bar (2001) is matched with the adjacent first movable plate (13), a movable part (2002) is fixedly connected to the other end of the slide bar (2001) in a fixedly connected mode, one end, far away from the adjacent slide bar (2001), of the movable part (2002) is rotatably connected with a rotating wheel (2003), limiting columns (2004) are fixedly connected to opposite sides of the slide bar (2001) in a mirror image mode, second limiting grooves (2005) are formed in the limiting plates (1905), the second limiting grooves (2005) are matched with the adjacent limiting columns (2004), and the upper shell (1) and the lower shell (2) are jointly provided with a water inlet component.
9. The multi-station laser welding device for tubular parts according to claim 8, wherein the water inlet assembly comprises a water passing shell (2101) with an annular array, the water passing shell (2101) with the annular array is fixedly connected with the upper shell (1) and the lower shell (2) respectively, the upper shell (1) and the lower shell (2) are communicated with the outside through the adjacent water passing shell (2101), and an electromagnetic valve (2102) is arranged in the water passing shell (2101).
10. A tubular article multi-station laser welding apparatus as claimed in claim 9, wherein the axis of said water passing shells (2101) of the annular array intersects the axis of said turret (6) for pre-cooling the welded tubular article.
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