CN113001076A

CN113001076A - All-position pipeline double-welding-torch automatic welding machine head

Info

Publication number: CN113001076A
Application number: CN202110380327.6A
Authority: CN
Inventors: 薛瑞雷; 周建平; 刘宏胜; 许燕; 李晓娟; 海几哲
Original assignee: Xinjiang University
Current assignee: Xinjiang University
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-06-22

Abstract

The invention relates to the technical field of pipeline welding equipment, in particular to an all-position pipeline double-welding-torch automatic welding machine head which comprises a machine head box body assembly, two lifting assemblies, two swinging assemblies, two welding torch clamping assemblies, an electric control box assembly and a stringing assembly.

Description

All-position pipeline double-welding-torch automatic welding machine head

Technical Field

The invention relates to the technical field of pipeline welding equipment, in particular to an all-position pipeline double-welding-torch automatic welding head.

Background

At present, pipeline construction is gradually developed from manual welding to automatic welding, the span of a pipeline construction area is large, the construction environment along the pipeline is severe, pipeline transportation is gradually developed towards the direction of high pressure and large caliber, and higher requirements are provided for welding of a pipeline circumferential weld. The problems of weld forming defects, low welding efficiency and the like become key factors which restrict the whole engineering quality and construction period, so that the reduction of the difficulty and labor intensity of field welding is urgent.

In the welding process of the all-position automatic pipeline welding machine, the machine head is driven by the welding trolley to perform circular motion along a track laid on a pipe wall groove, the welding gun is clamped on an executing mechanism at the tail end of the machine head, and the swinging mechanism and the lifting mechanism of the machine head are matched to sequentially complete bottoming, filling and capping work of pipeline welding. In the prior art, the structure of the pipeline welding machine head is complex, the angle adjustment of a welding torch is complex during welding, a large amount of manpower and material resources are wasted in the welding process, the layout structure of the existing pipeline welding machine head is scattered, the adaptation degree of the existing pipeline welding machine head and a pipeline welding field is required to be improved, and the problem of the existing pipeline welding machine head is solved urgently.

Disclosure of Invention

The invention aims to provide an all-position pipeline double-welding-torch automatic welding machine head structure in pipeline construction field operation, overcomes the defects in the prior art, and meets the requirements of various performance indexes such as small volume, light weight, low processing cost, strong numerical control capability, high movement precision, convenient operation and the like.

The invention is realized by the following technical measures:

the utility model provides a two welding torch automatic weld aircraft noses of all-position pipeline, includes aircraft nose box subassembly, two promotion subassemblies, two swing subassemblies, two welder centre gripping subassemblies, electric control box subassembly, overhead line subassembly, the promotion subassembly is installed in aircraft nose box subassembly through the both ends that support the integral key shaft, the swing subassembly passes through the swing rack-mount on promoting the subassembly, welder centre gripping subassembly is installed in swing integral key shaft one end through flexible retainer plate, electric control box subassembly is installed in aircraft nose box subassembly upper end, overhead line unit mount is at electric control box subassembly right-hand member.

The following are further optimizations and/or improvements to the above-described inventive solution:

preferably, aircraft nose box body assembly, including front bezel, back plate, roof, bottom plate, left side board, right side board, dovetail piece, the set casing is inserted by plane, and front bezel, back plate, roof, bottom plate, left side board, right side board, dovetail piece, the set casing is inserted by plane and is passed through bolted connection and constitute aircraft nose box body assembly, and the bottom plate is equipped with four integral key shaft support holes and two trapezoidal lead screw shaft support holes, and the front bezel is equipped with two swing integral key shafts and stretches out the slotted hole, and the roof is equipped with first electric control box lead wire slotted hole, and the back plate is equipped with the lead wire hole of inserting by plane.

Preferably, the lifting assembly comprises a supporting spline shaft, a small linear bearing, a motor fixing plate, a through shaft type stepping motor, a first trapezoidal lead screw and a swinging frame, wherein four linear bearing holes are formed in the swinging frame, the small linear bearing is installed in the linear bearing holes through bolts, the supporting spline shaft is installed in an inner hole of the small linear bearing, the motor fixing plate is fixed in the middle of the swinging frame, the through shaft type stepping motor is installed on the motor fixing plate, the first trapezoidal lead screw penetrates through the through shaft type stepping motor, and the swinging frame moves on the two supporting spline shafts under the driving of the through shaft type stepping motor.

Preferably, the swing subassembly, including swing integral key shaft, big linear bearing, the trapezoidal lead screw of second, step motor, swing integral key shaft cylinder inner wall is equipped with trapezoidal thread, trapezoidal lead screw one end of second is connected with step motor shaft, the other end and trapezoidal thread fit, the swing frame is equipped with the through-hole, the swing integral key shaft is arranged in the through-hole with the trapezoidal lead screw of second, step motor installs in swing frame through-hole one end, the other end of big linear bearing installation swing frame through-hole, the swing integral key shaft cooperates with big linear bearing, under step motor's drive, the swing integral key shaft is linear motion on big linear bearing.

Preferably, the welding gun clamping assembly comprises a support connecting rod, a telescopic fixing ring, a pressing pad, a welding gun movable connecting piece, a hooping seat, an angle aluminum piece, a fixing block, a clamping sleeve, a clamp spring, a handle and an adjusting indication block, wherein the telescopic fixing ring is provided with a key groove through hole, the telescopic fixing ring is installed at one end of a swing spline shaft through the key groove through hole, one end of the support connecting rod is provided with a cylindrical shell, the inner wall of the cylindrical shell is sleeved on the outer wall of the telescopic fixing ring, one end of the cylindrical shell is provided with a rotary groove, the pressing pad is installed at one end of the outer wall of the cylindrical shell through a bolt, the support connecting rod can rotate around the axis of the telescopic fixing ring through an elastic bolt, the adjusting indication block is provided with scales, the rotating angle of the support connecting rod can be obtained through the scales of the adjusting indication block, the support connecting rod is provided with eight, the clamping sleeve is installed on the inner wall of the clamping seat in a clearance fit mode, the clamping sleeve is fixed by the clamp spring, and the welding gun is inserted into the clamping sleeve and fixed by the bolt pre-tightening force of the handle.

Preferably, the electric control box assembly comprises a control box, an insulation board, four carrying handles and two long handles, wherein the insulation board is provided with a second electric control box through slot, the insulation board is installed at the upper end of a top plate of the machine head box assembly, a cavity is arranged in the control box, the two carrying handles are respectively connected to two ends of the long handles, and the carrying handles are connected with the outer wall of the control box through welding.

Preferably, the stringing subassembly, the loach carrying platform comprises a supporting fram, the terminal surface bearing frame, the line concentration shell, the cover, the customization bolt, the customization nut, first terminal surface bearing, second terminal surface bearing, support frame one end is passed through the bolt fastening and is being in the control box one end of electrical control box subassembly, the bottom at terminal surface bearing frame outer wall is installed to first terminal surface bearing, second terminal surface bearing is installed in terminal surface bearing frame inner wall bottom, and it is fixed with the pretightning force of customization nut to pass through the customization bolt, the inner wall cover of cover is on the outer wall of customization bolt one end, the one end of customization bolt is equipped with four screw holes, fix the cover and the line concentration shell to the customization bolt through ordinary bolt, the line concentration shell is under first terminal surface bearing, the support of second terminal surface bearing, can be around the axis.

The invention has reasonable and compact structure, aims to provide an all-position pipeline double-welding-torch automatic welding machine head structure in pipeline construction field operation, overcomes the defects in the prior art, and meets the requirements of various performance indexes such as small volume, light weight, low processing cost, strong numerical control capability, high motion precision, convenient operation and the like.

Drawings

Fig. 1 is an isometric view of the overall structure of the present invention.

Fig. 2 is a front view of the overall structure of the present invention.

Fig. 3 is a top view of the overall structure of the present invention.

Fig. 4 is a left side view of the overall structure of the present invention.

Fig. 5 is an isometric view of the unitary structure of the present invention with side panels installed.

Fig. 6 is an exploded view of the center head case of the present invention.

Fig. 7 is an exploded view of the middle lift assembly of the present invention.

Fig. 8 is an exploded view of the wobble assembly of the present invention.

Fig. 9 is an exploded view of the center torch clamping assembly of the present invention.

Fig. 10 is an exploded view of the middle electric control box of the present invention.

Fig. 11 is an exploded view of the mid-span wire assembly of the present invention.

The codes in the figures are respectively: 100. a head box assembly; 101. a front plate; 102. a back plate; 103. a top plate; 104. a base plate; 105. a left side plate; 106. a right side plate; 107. a dovetail block; 108. an aerial plug fixing shell; 151. a spline shaft support hole; 152. a trapezoidal screw shaft support hole; 153. a slot; 154. a first electrical control box through wire slot; 155. an aerial plug-through hole; 200. a lifting assembly; 201. supporting the spline shaft; 202. a small linear bearing; 203. a motor fixing plate; 204. a through-shaft type stepping motor; 205. a first trapezoidal lead screw; 206. swinging the frame; 251. a linear bearing bore; 300. a swing assembly; 302. swinging the spline shaft; 303. a large linear bearing; 304. a second trapezoidal lead screw; 305. a stepping motor; 351. trapezoidal threads; 352. a through hole; 400. a welding gun clamping assembly; 401. a support link; 402. a telescopic fixing ring; 403. a pressure pad; 404. a welding gun movable connecting piece; 405. a tightening seat; 406. a corner aluminum piece; 407. a fixed block; 408. a clamping sleeve; 409. a clamp spring; 410. a handle; 411. an adjustment indication block; 451. an adjustment hole; 452. calibration; 453. a keyway through hole; 454. a rotating tank; 455. a cylindrical housing; 500. an electrical control box assembly; 501. a control box; 502. an insulating plate; 503. a carrying handle; 504. a long grip; 551. a second electrical control box through wire slot; 552. a cavity; 600. a stringing assembly; 601. a support frame; 602. an end face bearing block; 603. a wire collecting shell; 604. a concentrator shell cover; 605. a cushion cover; 606. customizing a bolt; 607. customizing a nut; 608. a first end face bearing; 609. a second end face bearing; 651. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention is further described with reference to the following examples and figures:

as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, an all-position automatic welding head for a pipeline with two welding torches comprises a head box assembly 100, two lifting assemblies 200, two swinging assemblies 300, two welding torch clamping assemblies 400, an electric control box assembly 500, and a stringing assembly 600, wherein the head box assembly 100 is connected with a welding carriage through a bottom dovetail block 107, the lifting assemblies 200 are installed in the head box assembly 100 through two ends of a supporting spline shaft 201, the swinging assemblies 300 are installed on the lifting assemblies 200 through a swinging frame 206, the welding torch clamping assemblies 400 are installed at one ends of the swinging spline shafts 302 through telescopic fixing rings 402, the electric control box assembly 500 is installed at the upper end of the head box assembly 100, and the stringing assembly 600 is installed at the right end of the electric control box assembly 500.

The full-position pipeline double-welding-torch automatic welding head can be further optimized and/or improved according to actual needs:

as shown in fig. 1, 2, 6 and 8, the head case assembly 100 includes a front plate 101, a rear plate 102, a top plate 103, a bottom plate 104, a left side plate 105, a right side plate 106, a dovetail block 107 and an aerial-insertion fixing shell 108, wherein the front plate 101, the rear plate 102, the top plate 103, the bottom plate 104, the left side plate 105, the right side plate 106, the dovetail block 107 and the aerial-insertion fixing shell 108 are connected by bolts to form the head case assembly 100, the bottom plate 104 is provided with four spline shaft supporting holes 151 and two trapezoidal screw shaft supporting holes 152, the front plate 101 is provided with two slots 153, two swing spline shafts 302 respectively pass through the two slots 153, the top plate 103 is provided with a first electrical control box through wire slot 154, and the rear plate 102 is provided with an aerial-insertion through wire hole 155.

As shown in fig. 1, 2 and 7, the lifting assembly 200 includes a small linear bearing 202, a motor fixing plate 203, a through shaft type stepping motor 204, a first trapezoidal screw 205 and a swing frame 206, wherein four linear bearing holes 251 are formed in the swing frame 206, the small linear bearing 202 is installed in the linear bearing holes 251 through bolts, a support spline shaft 201 is installed in an inner hole of the small linear bearing 202, the motor fixing plate 203 is fixed in the middle of the swing frame 206, the through shaft type stepping motor 204 is installed on the motor fixing plate 203, the first trapezoidal screw 205 penetrates through the through shaft type stepping motor 204, and the swing frame 206 moves on the two support spline shafts 201 under the driving of the through shaft type stepping motor 204.

As shown in fig. 1, 2, 7, and 8, the swing assembly 300 includes a swing spline shaft 302, a large linear bearing 303, a second trapezoidal screw 304, and a stepping motor 305, where the inner cylindrical wall of the swing spline shaft 302 is provided with a trapezoidal thread 351, one end of the second trapezoidal screw 304 is connected to the stepping motor 305, the other end is engaged with the trapezoidal thread 351, the swing frame 206 is provided with a through hole 352, the swing spline shaft 302 and the second trapezoidal screw 304 are located in the through hole 352, the stepping motor 305 is installed at one end of the through hole 352 of the swing frame 206, the large linear bearing 303 is installed at the other end of the through hole 352 of the swing frame 206, the swing spline shaft 302 is engaged with the large linear bearing 303, and the swing spline shaft 302 makes a linear motion on the large linear bearing 303.

As shown in fig. 1, 2, 3, 4, and 9, the welding gun clamping assembly 400 includes a support link 401, a telescopic fixing ring 402, a pressure pad 403, a welding gun movable connector 404, a clamping seat 405, an angle aluminum piece 406, a fixing block 407, a clamping sleeve 408, a clamp spring 409, a handle 410, and an adjustment indication block 411, the telescopic fixing ring 402 is provided with a keyway through hole 453, the telescopic fixing ring 402 is mounted at one end of the swing spline shaft 302 through the keyway through hole 453, one end of the support link 401 is provided with a cylindrical shell 455, an inner wall of the cylindrical shell 455 is sleeved on an outer wall of the telescopic fixing ring 402, one end of the cylindrical shell 455 is provided with a rotation groove 454, the pressure pad 403 is mounted at one end of an outer wall of the cylindrical shell 455 through a bolt, the support link 401 can rotate around an axis of the telescopic fixing ring 402 through the tightening bolt, the adjustment indication block 411 is provided with a scale, eight adjusting holes 451 are formed in the supporting connecting rod 401, the welding gun movable connecting piece 404 is fixed to the adjusting holes 451 through bolts, the clamping base 405 is installed at one end of the welding gun movable connecting piece 404 through bolt pre-tightening forces of the angle aluminum piece 406 and the fixing block 407, the clamping sleeve 408 is installed on the inner wall of the clamping base 405 through clearance fit, the clamping sleeve 408 is fixed through a clamping spring 409, and the welding gun is inserted into the clamping sleeve 408 and fixed through the bolt pre-tightening force of the handle 410.

As shown in fig. 1, 2, 3, 4, 6 and 10, the electrical control box assembly 500 includes a control box 501, an insulating plate 502, four carrying handles 503 and two long handles 504, the insulating plate 502 is provided with a second electrical control box through slot 551, the insulating plate 502 is mounted at the upper end of the top plate 103 of the handpiece box assembly 100, a cavity 552 is arranged in the control box 501 for mounting a circuit module, the two carrying handles 503 are respectively connected to two ends of the long handles 504, the carrying handles 503 are connected with the outer wall of the control box 501 by welding, and when in use, an operator holds the two long handles 504 to move or detach the handpiece.

As shown in fig. 1, 2, 3, 4, 10, and 11, the stringing assembly 600 includes a support bracket 601, an end surface bearing seat 602, a stringing shell 603, a stringing shell cover 604, a grommet 605, a custom bolt 606, a custom nut 607, a first end surface bearing 608, and a second end surface bearing 609, wherein one end of the support bracket 601 is fixed at one end of the control box 501 of the electrical control box assembly 500 by a bolt, the first end surface bearing 608 is installed at the bottom end of the outer wall of the end surface bearing seat 602, the second end surface bearing 609 is installed at the bottom end of the inner wall of the end surface bearing seat 602 and is fixed by the pre-tightening force of the custom bolt 606 and the custom nut 607, the inner wall of the grommet 605 is sleeved on the outer wall of one end of the custom bolt 606, one end of the custom bolt 606 is provided with four threaded holes 651, the grommet 605 and the stringing shell 603 are fixed on the custom bolt 606 by a common bolt, the, which can rotate about an axis, a hub cap 604 is mounted on top of the hub 603.

The above technical features constitute the best embodiments of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be added or reduced according to actual needs to meet different requirements.

Claims

1. The utility model provides a two welding torch automatic weld aircraft noses of all-position pipeline, its characterized in that, includes aircraft nose box subassembly, two promotion subassemblies, two swing subassemblies, two welder centre gripping subassemblies, electric control box subassembly, overhead line subassembly, the promotion subassembly is installed in aircraft nose box subassembly through the both ends of supporting the integral key shaft, the swing subassembly passes through the swing rack-mount on the promotion subassembly, welder centre gripping subassembly passes through flexible retainer plate and installs in swing integral key shaft one end, electric control box subassembly is installed in aircraft nose box subassembly upper end, overhead line unit mount is at electric control box subassembly right-hand member.

2. The automatic welding head for all-position pipeline double welding torches as claimed in claim 1, wherein the head box assembly comprises a front plate, a rear plate, a top plate, a bottom plate, a left side plate, a right side plate, a dovetail block and an aerial fixed shell, the front plate, the rear plate, the top plate, the bottom plate, the left side plate, the right side plate, the dovetail block and the aerial fixed shell are connected through bolts to form the head box assembly, the bottom plate is provided with four spline shaft supporting holes and two trapezoidal screw shaft supporting holes, the front plate is provided with two swing spline shaft extending slotted holes, the top plate is provided with a first electric control box through slot hole, and the rear plate is provided with an aerial through hole.

3. The all-position pipeline double-welding-torch automatic welding machine head as claimed in claim 1, wherein the lifting assembly comprises a support spline shaft, a small linear bearing, a motor fixing plate, a through shaft type stepping motor, a first trapezoidal screw and a swing frame, the swing frame is provided with four linear bearing holes, the small linear bearing is installed in the linear bearing hole through a bolt, the support spline shaft is installed in an inner hole of the small linear bearing, the motor fixing plate is fixed in the middle of the swing frame, the through shaft type stepping motor is installed on the motor fixing plate, the first trapezoidal screw penetrates through the through shaft type stepping motor, and the swing frame moves on the two support spline shafts under the driving of the through shaft type stepping motor.

4. The automatic welding head for all-position pipeline double welding torches as claimed in claim 1, wherein the swing assembly comprises a swing spline shaft, a large linear bearing, a second trapezoidal lead screw and a stepping motor, the inner cylindrical wall of the swing spline shaft is provided with trapezoidal threads, one end of the second trapezoidal lead screw is connected with a shaft of the stepping motor, the other end of the second trapezoidal lead screw is matched with the trapezoidal threads, the swing frame is provided with a through hole, the swing spline shaft and the second trapezoidal lead screw are located in the through hole, the stepping motor is installed at one end of the through hole of the swing frame, the large linear bearing is installed at the other end of the through hole of the swing frame, the swing spline shaft is matched with the large linear bearing, and the swing spline shaft moves linearly on the.

5. The automatic welding head for all-position pipelines with double welding torches as claimed in claim 1, wherein the welding torch clamping assembly comprises a support connecting rod, a telescopic fixing ring, a pressure pad, a welding torch movable connecting piece, a clamping seat, an angle aluminum piece, a fixing block, a clamping sleeve, a clamp spring, a handle and an adjusting indication block, the telescopic fixing ring is provided with a key slot through hole, the telescopic fixing ring is mounted at one end of the swing spline shaft through the key slot through hole, one end of the support connecting rod is provided with a cylindrical shell, the inner wall of the cylindrical shell is sleeved on the outer wall of the telescopic fixing ring, one end of the cylindrical shell is provided with a rotating groove, the pressure pad is mounted at one end of the outer wall of the cylindrical shell through a bolt, the support connecting rod can rotate around the axis of the telescopic fixing ring through the tightening bolt, the adjusting indication block is provided with scales, the, the welding gun movable connecting piece is fixed on the adjusting hole through a bolt, the tightening seat is installed at one end of the welding gun movable connecting piece through the bolt pre-tightening force of the angle aluminum piece and the fixing block, the clamping sleeve is installed on the inner wall of the tightening seat through clearance fit, the clamping sleeve is fixed by the clamp spring, and the welding gun is inserted into the clamping sleeve and fixed by the bolt pre-tightening force of the handle.

6. The automatic welding head for all-position pipeline double welding torches as claimed in claim 1, wherein the electric control box assembly comprises a control box, an insulating plate, four handles, and two long handles, the insulating plate is provided with a second electric control box through slot, the insulating plate is mounted at the upper end of a top plate of the head box assembly, a cavity is formed in the control box, the two handles are respectively connected to two ends of the long handles, and the handles are connected with the outer wall of the control box through welding.

7. The automatic welding head for full position pipeline double welding torch as claimed in claim 1, wherein the stringing assembly comprises a support frame, an end face bearing seat, a line concentration shell cover, a cushion cover, a customized bolt, a customized nut, a first end face bearing and a second end face bearing, one end of the support frame is fixed at one end of the control box of the electric control box assembly through a bolt, the first end face bearing is installed at the bottom end of the outer wall of the end face bearing seat, the second end face bearing is installed at the bottom end of the inner wall of the end face bearing seat and fixed through the pretightening force of the customized bolt and the customized nut, the inner wall of the cushion cover is sleeved on the outer wall of one end of the customized bolt, one end of the customized bolt is provided with four threaded holes, the cushion cover and the line concentration shell are fixed on the customized bolt through a common bolt, the line concentration shell can, the line concentration shell cover is installed at the line concentration shell top.