CN102729045B - Integrated steel pipe and flange splicing and machining machine and machining process thereof - Google Patents
Integrated steel pipe and flange splicing and machining machine and machining process thereof Download PDFInfo
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- CN102729045B CN102729045B CN201210158851.XA CN201210158851A CN102729045B CN 102729045 B CN102729045 B CN 102729045B CN 201210158851 A CN201210158851 A CN 201210158851A CN 102729045 B CN102729045 B CN 102729045B
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Abstract
The invention discloses an integrated steel pipe and flange splicing and machining machine and a machining process thereof and aims to provide an integrated steel pipe and flange splicing and machining machine which can improve the manufacturing precision and the production efficiency and reduce the labor intensity and is high in steel pipe and flange welding quality and a machining process of the machine. The integrated steel pipe and flange splicing and machining machine comprises a working platform, and a supporting bracket which is arranged on the working platform and is used for supporting a steel pipe, wherein one end of the working platform is provided with a first welding device; a first guide rail which extends to the other end of the working platform is arranged on the top of the working platform; a first mounting plate is arranged on the first guide rail in a sliding mode; a second welding device is arranged on the first mounting plate; and flange fixing templates are arranged on the first welding device and the second welding device. The machining process comprises the following steps of: lifting the steel pipe to the supporting bracket, and fixing the flange to a flange fixing template; and welding annular gaps of the inner and outer side faces of the steel pipe and the flange through the first welding device and the second welding device.
Description
Technical field
The present invention relates to a kind of steel pipe and flange splicing process equipment, be specifically related to steel pipe and flange splicing processing integrated machine and processing technology thereof.
Background technology
The splicing process of current steel pipe and flange is roughly as follows, first, handling steel tubes, to large-scale cutting machine, is carried out to fixed length cutting to steel pipe.Then, by cutting after handling steel tubes to carrying out set round on special set round equipment; Follow again, by lifting steel pipes jig after set round, and flange is arranged on to the two ends of steel pipe on jig.Finally, the two ends of steel pipe and flange are aligned; Mode by boxing after aligning is welded the flange at two ends and steel pipe.For example, China Patent Publication No. CN201728497U, open day on February 2nd, 2011, the name of innovation and creation is called flange, steel pipe automatic butt jointing device, this application case discloses a kind of flange, steel pipe automatic butt jointing device, comprise workbench, be positioned at the chuck assembly of two groups of face-to-face settings on workbench and the bracing or strutting arrangement for supporting steel pipe, wherein, flange is positioned on chuck assembly and is vertical with workbench, steel pipe is positioned on bracing or strutting arrangement, on the base of described chuck assembly, be provided with the leader balladeur train that is positioned at flange front portion, described leader balladeur train comprises support and is arranged at the guided plate on support, described guided plate is set to arc, the radian of its radian and flange connecting hole matches, and the upper surface of guided plate and the surface of flange connecting hole are positioned on the same face of cylinder.Apply above-mentioned flange, steel pipe automatic butt jointing device splices processing to steel pipe and flange, be first also by handling steel tubes to special cutting machine, steel pipe is carried out to fixed length cutting; Then, by handling steel tubes to the steel pipe after cutting is placed on special set round equipment and carries out set round; Then handling steel tubes after set round is docked to docking facilities, finally weld again.
Mainly there is following problem in current steel pipe and the splicing of flange processing: the first, and because the welding of steel pipe and flange is to carry out a ring weldering around steel pipe and flange, therefore the amount of contraction after steel pipe and flange welding is larger; So the size of the steel pipe after fixed length cutting after the welded flange of two ends will produce larger deviation, reduces the accuracy of manufacture.Its two, conventionally after steel tube end part set round, have residual stress exist, these residual stress are can not have an effect in the time that steel pipe is under normal temperature state, under normal temperature state, the steel pipe after full circle can not produce deformation; But because steel pipe is heated, these residual stress will be had an effect and be made steel pipe produce deformation in welding process.Therefore,, in steel pipe and flange welding process, due to the effect of residual stress, deformation can occur steel pipe causes welding quality to reduce, and affects the weld strength of steel pipe and flange.The 3rd, because the quality of steel pipe is larger, the steel pipe that especially size is large mobile get up very inconvenient, and current steel pipe and flange are processed in splicing, must be first by handling steel tubes to large-scale cutting machine, steel pipe is carried out to fixed length cutting; Then handling steel tubes is being docked and welded to the processing platform of processing unit (plant); So not only production efficiency is low, labour intensity is large; And the price of large-scale cutting machine is high, can increase the production cost of steel pipe and flange splicing processing.The 4th, because the linearity of processed steel pipe can not reach theoretic requirement, especially ERW amount of deflection exists certainly, therefore the machined surface after fixed length cutting processing, always can be perpendicular to the theoretical axial line of steel pipe, so in the time docking with flange, can cause weld gap inhomogeneous.The circularity of the 5th steel pipe has also formed the main cause of welding quality.
On the other hand, in order to improve welding efficiency and steel pipe and flange bonding strength, adopt at present band neck forged flange and butt welding of steel tube structure.At present hubbed flange and steel pipe connect weldering, conventionally adopt the welding manner of carbon-dioxide protecting gas, the welding efficiency of the welding manner of carbon-dioxide protecting gas is low.If employing submerged-arc welding, also adopts the mode of single face welding and double face shaping, by carrying out submerged-arc welding on the lateral surface at hubbed flange and steel pipe, the medial surface that is simultaneously welded in hubbed flange and steel pipe by pad also forms good welding; But this welding procedure also forms good welding for the medial surface that ensures hubbed flange and steel pipe, need to beat groove to reduce the thickness between interior lateral surface in the lateral surface port of steel pipe; Also need to add ceramic substrate in steel duct, because the mode of single face welding and double face shaping, the weld seam in the time of welding needs a through welding steel pipe surfaces externally and internally simultaneously.The single face welding and double face shaping that hubbed flange and steel pipe adopt at present connects welding method, because needs add ceramic substrate, not only expend man-hour, reduce welding efficiency, and the manufacturing industry of ceramic substrate is very difficult, and recycling rate of waterused is low, increases welding cost.
Summary of the invention
The first object of the present invention is the problem that the accuracy of manufacture is not good, production efficiency is low, welding quality is unstable, labour intensity is large and production cost is high in order to overcome existing steel pipe and flange splicing processing, provide a kind of reliably, can improve the accuracy of manufacture and production efficiency, and reduce labour intensity and production cost, and the steel pipe of welding quality stable and flange splicing processing integrated machine and processing technology thereof.
The second object of the present invention is in order to overcome existing steel pipe and flange in welding process, welding cost is high, the unsettled problem of welding quality, provide a kind of welding cost low, good heat dissipation effect, long service life, and the steel pipe of welding quality stable and flange splicing processing integrated machine.
Technical scheme of the present invention is:
A kind of steel pipe and flange splicing processing integrated machine, comprise workbench, be arranged on workbench for supporting the Support bracket of steel pipe, described workbench one end is provided with the first welder, workbench end face is provided with the first guide rail that is extended to the workbench other end by the first welder place, on the first guide rail, be slidably provided with the first installing plate, between described workbench and the first installing plate, be provided with the horizontally moving device for passing the first installing plate; The first installing plate is provided with the second welder; Described the first welder and the second welder are provided with flange fixed form and two flange fixed forms are oppositely arranged; Between described the first welder and the second welder, be provided with the steel pipe cutting device that can move along the first guide rail.The process of the steel pipe of this programme and flange splicing processing integrated machine is, the first, handling steel tubes, to Support bracket, is fixed on flange on flange fixed form; The second, by the welding machine on the first welder, one end of steel pipe and flange are welded; Until the weld seam of steel pipe and flange relative cooling, shrink after, by steel pipe cutting device, steel pipe is carried out to fixed length cutting; The 3rd, move the first installing plate by horizontally moving device, the other end of the flange on the flange fixed form arranging on the second welder and steel pipe is aligned and welded.In second step, after steel pipe and flange welding, carry out cooling contraction, then carried out fixed length cutting; Can eliminate like this after this end steel pipe and flange welding, because the deviation causing is shunk in welding; In the precision control of the length dimension after steel pipe and flange welding, can rise to original one times.On the other hand, due to the fixed length cutting of steel pipe and the welding of steel pipe and flange is assembled all completes on this programme board, so not only reduce labour intensity, improved production efficiency, and large-scale cutting machine and welding platform for lining are combined as a whole, can greatly reduce the input cost of equipment, and then reduce the production cost of the splicing processing of steel pipe and flange.
As preferably, the first welder comprises internal welding device, outer welder, drive motors, gear drive, connection template and is arranged on the supporting seat with manhole on workbench, described connection template rounded and can around manhole axis rotate being located in manhole, the driving wheel of described gear drive is connected with drive motors, driven pulley be connected coaxial being arranged on of template and connect on template side; What described flange fixed form was relative with driven pulley is located on the another side that connects template; The middle part of described driven pulley, connection template and flange fixed form is equipped with intercommunicating pore and each intercommunicating pore is connected; Described internal welding device comprises internal welding machine head, is arranged on the second guide rail on workbench, slidably be arranged on welding machine seat on the second guide rail and for passing the thrust unit of welding machine seat, described internal welding machine head is located on welding machine seat, described the second guide rail is positioned at driven pulley the same side that is connected template, and the second guide rail extends and arranges along the axis direction that connects template; Described internal welding machine head can stretch in intercommunicating pore along the second guide rail.First welder of this programme, in the time of welding, first, carries out spot welding by the outer welding machine of outer welder, and steel pipe is tentatively connected with flange.Then, the welding head of outer welder is aimed to the connecting sewing of steel pipe and flange lateral surface; And make the internal welding machine head of internal welding device aim at the connecting sewing of steel pipe and flange medial surface by thrust unit.Finally, the driven wheel that passes through gear drive by drive motors drives connection template and flange fixed form to rotate, thereby drives flange and steel pipe to rotate, and the every rotation of flange and steel pipe one week, completes the welding of a flange and steel pipe.By the welder of this programme, the inside and outside side of steel pipe and flange is welded on same board and completes, not only can improve the welding efficiency of welding process, can also improve greatly welding stability and welding quality.Owing to adopting the mode of inside and outside two-sided welding, do not need to add the cushions simultaneously; This is because all weld the inside and outside side of steel pipe and flange, therefore, in the time that the medial surface to steel pipe and flange or lateral surface weld, does not need the inside and outside side of through welding steel pipe and flange; Can, not reducing under the prerequisite of welding quality, effectively reduce welding cost like this.On the other hand, drive steel pipe rotary by rotary flange, because the weld seam of flange and steel pipe is near flange fixed form, therefore in welding process, can avoid the deviation of steel pipe due to circularity and linearity, the beat impact of welding quality of the circle causing, improves the stability of welding quality.
As preferably, the sidewall of manhole is provided with the first ring connected in star coaxial with manhole, is at least provided with three copper packings that are concave shape and copper packing and is circumferentially and is uniformly distributed in first ring connected in star; Described connection template is located in first ring connected in star and is matched with copper packing, and is equipped with at least one second annular groove with on the cylindrical anchor ring that is connected template of copper packing joint and two sides.Owing to being provided with the copper packing that is concave shape in first ring connected in star, connect template and match with copper packing, make to connect template in the process of rotating, not only can reduce friction area, be conducive to connect the rotation of template and reduce frictional heat; Importantly, due to copper packing be arranged so that connect template in the process of rotating, can in first ring connected in star, form a heat dissipation channel between copper packing and copper packing be in communication with the outside, accelerate to connect the heat radiation in the rotation process of template, improve service life.Meanwhile, the setting of the second annular groove not only can reduce to connect the contact area of template and copper packing; Importantly, the second annular groove has directly been communicated with the heat dissipation channel between adjacent two copper packings, makes to connect the frictional heat producing between template and copper packing and is distributed fast, and then improve service life.
As preferably, the second welder comprises internal welding device, outer welder, connects template and is arranged on the supporting seat with manhole on workbench, rounded and being located in manhole of can rotating around manhole axis of described connection template, flange fixed form is located at and is connected on the side of template; The middle part of described connection template and flange fixed form is equipped with intercommunicating pore and two intercommunicating pores are connected; Described internal welding device comprises internal welding machine head, is arranged on the second guide rail on the first installing plate, slidably be arranged on welding machine seat on the second guide rail and for passing the thrust unit of welding machine seat, described internal welding machine head is located on welding machine seat, and the second guide rail extends and arranges along the axis direction that connects template; Described internal welding machine head can stretch in intercommunicating pore along the second guide rail.
As preferably, outer welder comprises lifting motor, walks crosswise motor, outer welding head, be arranged on the column on workbench and be arranged on the crossbeam on column, described column one side is provided with two longitudinal rails that are parallel to each other, between described two longitudinal rails, be provided with second leading screw and nut mechanism longitudinally arranging, described lifting motor is located at column top and is connected with the screw mandrel of the second leading screw and nut mechanism; Described crossbeam is slidably located on longitudinal rail and by bolt and is connected with the nut of the second leading screw and nut mechanism; One side of described crossbeam is provided with transverse concave groove, is respectively equipped with a horizontal guide groove on the two sides of this transverse concave groove, and the bottom of this transverse concave groove is provided with horizontal tooth bar; One cross section slide bar in T shape is slidably located in transverse concave groove and is matched with horizontal guide groove; Described outer welding head is located at slide bar outer end, described in walk crosswise motor and be located at the other end relative with outer welding head on slide bar, and walk crosswise motor and be provided with one and walk crosswise gear and be meshed with horizontal tooth bar.By the outer welder of this programme, the position of outer welding head can be regulated as required, and in place the moving in adjustment process of outer welding head can be regulated stably.
As preferably, Support bracket comprises mounting bracket, support wheel, and described mounting bracket bottom is provided with roller and roller can roll along the first guide rail, and it is perpendicular that described mounting bracket is provided with two articles of the 3rd guide rails that are parallel to each other and the 3rd guide rail and the first guide rail; The two-end part of the 3rd guide rail is provided with fixed head between two the 3rd guide rails, on described the 3rd guide rail, is slidably provided with two the second installing plates, on the second installing plate bottom surface, between two the 3rd guide rails, is provided with Connection Block; Between described Connection Block and fixed head, be connected by the screw rod paralleling with the 3rd guide rail, and the end of screw rod is passed fixed head and is positioned at fixed head outside; On described screw rod, be positioned at the inside and outside two sides of fixed head place and be provided with limited block, and screw rod is rotatable is arranged on fixed head, screw rod and Connection Block are threaded connection; On two second installing plates, be respectively equipped with two parallel gripper shoes and gripper shoe is parallel to the 3rd guide rail, the relative dual-side of the gripper shoe on described two second installing plates is inclined side, is at least provided with from lower to upper two breach on inclined side; Described support wheel is provided with rotating shaft and support wheel can rotate around the axis, and rotating shaft is arranged in breach, and support wheel is located between two gripper shoes.
The steel pipe that the Support bracket of this programme can be opposite on Support bracket on the four direction of upper and lower, left and right regulates, and can be placed on Support bracket and processes to meet steel pipe that various gauge size are different.
As preferably, the lateral surface of flange fixed form is provided with at least three gathering sill and gathering sills that radially arrange and is circularly and evenly distributed, gathering sill is I-shaped groove, in described gathering sill, be provided with slide, slide comprises top shoe in T shape and sliding block, top shoe is located at I-shaped groove top, and sliding block is located at I-shaped groove bottom, and described upper and lower slide block is bolted; Described top shoe end face is provided with the screw for adpting flange.By this programme structure, can make the flange of various different models be fixed on the slide of flange fixed form, to improve the scope of application of welder.
As preferably, horizontally moving device comprises gear & rack structure and translation motor; Described tooth bar is arranged on workbench, and parallels with the first guide rail; Described translation motor is fixedly installed on the first installing plate, and described gear is connected with the rotor of translation motor.Rotate and coordinate tooth bar that the first installing plate can be moved along the first guide rail by translation motor driven gear.On the other hand, translation motor is arranged on the first installing plate and also helps maintenance.
As preferably, comprise rounding die, rounding die comprises two symmetrically arranged semicircle anchor ears, the two ends of two anchor ears are bolted.Rounding die by this programme not only can carry out set round to the two ends of steel pipe, and while ensureing welding, steel pipe and flange center align; Importantly, the rounding die of this programme, in steel pipe and flange welding process, can be arranged on the end of steel pipe always, ensures the circularity of steel pipe; Avoid steel tube end part after set round, under the effect due to residual stress, in steel pipe and flange welding process, steel pipe generation deformation causes welding quality to reduce, and affects the weld strength of steel pipe and flange.
A processing technology for steel pipe and flange splicing processing integrated machine, comprises the following steps:
The first, handling steel tubes, to Support bracket, is fixed on flange on the flange fixed form on the first welder;
The second, regulate steel pipe position by Support bracket, steel pipe and flange are aligned; And by spot welding joint steel pipe and flange;
The 3rd, drive flange and steel pipe to rotate by drive motors, weld by the internal welding device of the first welder and the annulus of the inside and outside side of outer welder to steel pipe and flange;
The 4th, cooling until the weld seam of the steel pipe in third step and flange, shrink after, by steel pipe cutting device, steel pipe is carried out to fixed length cutting;
The 5th, another flange is fixed on the flange fixed form on the second welder, promote the first installing plate by horizontally moving device, the flange on the flange fixed form of fixing on the second welder is docked with the end of steel pipe, and by spot welding joint steel pipe and flange;
The 6th, drive flange and steel pipe to rotate by drive motors, weld by the internal welding device of the second welder and the annulus of the inside and outside side of outer welder to steel pipe and flange;
The 7th, carry out welding slag cleaning, and welding quality detects.
The processing technology of this programme has the following advantages:
One, can rise to original one times to the precision control of the length dimension after steel pipe and flange welding, this is due in the 4th step processing, after relative cooling, the contraction of the weld seam of steel pipe and flange, then by steel pipe cutting device, steel pipe is carried out to fixed length cutting; Can eliminate like this after this end steel pipe and flange welding, because the deviation causing is shunk in welding.
Its two, owing to steel pipe and flange being adopted to the welding manner of inside and outside two-sided submerged-arc welding, the groove of weld seam, just without offering angle, does not need while docking deliberately to reserve weld gap and direct apical grafting with connected piece.In certain thickness range, due to the large work of having removed interlayer back chipping from of the deposited amount of welding, greatly improve speed of welding and quality.
Its three, improved operating efficiency, reduced labour intensity, improved operating efficiency, to be that welding due to the fixed length cutting of steel pipe and steel pipe and flange is assembled all complete on same workbench for this.
The invention has the beneficial effects as follows:
One, can improve the accuracy of manufacture and production efficiency, and reduces labour intensity.
Its two, improved greatly the quality of steel pipe and flange attachment weld.
Its three, good heat dissipation effect, the long service life of steel pipe and flange splicing processing integrated machine, workpiece crudy is stable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a kind of structural representation at the first welder place of the present invention.
Fig. 3 is the local structure for amplifying schematic diagram of the one at A place in Fig. 2.
Fig. 4 is a kind of structural representation at thrust unit of the present invention place.
Fig. 5 is a kind of structural representation of flange fixed form of the present invention.
Fig. 6 is a kind of part section structural representation at slide of the present invention place.
Fig. 7 is a kind of structural representation at Support bracket of the present invention place.
Fig. 8 is the side view of Support bracket of the present invention.
Fig. 9 is a kind of structural representation at horizontally moving device of the present invention place.
Figure 10 is a kind of structural representation at steel pipe cutting device of the present invention place.
Figure 11 is a kind of structural representation at angle frame of the present invention place.
In figure: workbench 1, the first welder 2, the second welder 3, the first guide rail 4, the first installing plate 5, Support bracket 6, steel pipe cutting device 7, rounding die 8, steel pipe 9, flange 10, internal welding device 11, driving wheel 12, driven pulley 13, connect template 14, flange fixed form 15, supporting seat 16, intercommunicating pore 17, drive motors 18, internal welding machine head 19, column 20, crossbeam 21, walk crosswise motor 22, lifting motor 23, slide bar 24, outer welding head 25, benchmark template 26, fixed form 27, copper packing 28, the second annular groove 29, dividing plate 30, the second guide rail 31, welding machine seat 32, the second leading screw and nut mechanism 33, bearing block 34, interior welding motor 35, gathering sill 36, slide 37, top shoe 38, sliding block 39, mounting bracket 40, roller 41, the 3rd guide rail 42, the second installing plate 43, gripper shoe 44, breach 45, support wheel 46, screw rod 47, Connection Block 48, fixed head 49, translation motor 50, gear 51, tooth bar 52, length feed swing arm 53, swing arm 54 crosses feed, knife rest roller 55, tool holder 56, angle frame 57, stiffener 58, outer welder 59.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
Embodiment 1: as shown in Figure 1, a kind of steel pipe and flange splicing processing integrated machine, comprise workbench 1, is arranged on workbench 1 for supporting the Support bracket 6 of steel pipe.Described workbench 1 one end is provided with the first welder 2.Workbench 1 end face is provided with the first guide rail 4 that is extended to the workbench other end by the first welder 2 places.On the first guide rail 4, be slidably provided with the first installing plate 5.Between described workbench 1 and the first installing plate 5, be provided with the horizontally moving device for passing the first installing plate.The first installing plate 5 is provided with the second welder 3.Described the first welder 2 and the second welder 3 are provided with flange fixed form 15 and two flange fixed forms are oppositely arranged.Between described the first welder 2 and the second welder 3, be provided with the steel pipe cutting device 7 that can move along the first guide rail.
As shown in Figure 2, the first welder 2 comprises internal welding device 11, outer welder 59, drive motors 18, gear drive, connection template 14 and is arranged on the supporting seat with manhole 16 on workbench.The welding machine of internal welding device and outer welder is submerged-arc welding machine.
As shown in Figure 2 and Figure 3, described connection template 14 rounded and can around manhole axis rotate being located in manhole.Specifically, the sidewall of manhole is provided with the first ring connected in star coaxial with manhole, is provided with four copper packings 28 that are concave shape and copper packing and is circumferentially and is uniformly distributed in first ring connected in star.Described connection template 14 is located in first ring connected in star and is matched with copper packing 28; And with on the cylindrical anchor ring that is connected template 14 of copper packing 28 joints and two sides, be equipped with the second annular groove 29.In each the second annular groove 29, be provided with and be somely circumferential equally distributed dividing plate 30, and the end face of dividing plate is positioned at the below of the second annular groove opening.
Owing to being provided with the copper packing 28 that is concave shape in first ring connected in star, and connection template 14 matches with copper packing 28; When connecting template 14 in the process of rotation, not only can reduce friction area; The more important thing is, due to copper packing 28 be arranged so that connect template 14 rotate process in, between copper packing 28 and copper packing 28, can form a heat dissipation channel at first ring connected in star and be in communication with the outside, the heat radiation in the rotation process of quickening connection template, improves service life.Meanwhile, the setting of the second annular groove 29 not only can reduce to connect the contact area of template and copper packing; The more important thing is, the second annular groove 29 has directly been communicated with the heat dissipation channel between adjacent two copper packings, makes to connect the frictional heat producing between template and copper packing and is distributed fast.
As shown in Figure 3, above-mentioned supporting seat 16 comprises benchmark template 26 and fixed form 27, the middle part of described benchmark template and fixed form is provided with manhole, and on benchmark template 26 1 sides, be positioned at manhole edge and be provided with the recessed ledge frame caving inward, described fixed form 27 is bolted on the side at openend place of the recessed ledge frame of benchmark template 26.The recessed ledge frame of described benchmark template is fixed template and forms first ring connected in star.
As shown in Figure 2, the driving wheel 12 of gear drive is connected with drive motors 18, driven pulley 13 be connected coaxial being arranged on of template 14 and connect on template 14 sides.What described flange fixed form 15 was relative with driven pulley 13 is located on the another side that connects template 14.The middle part of described driven pulley 13, connection template 14 and flange fixed form 15 is equipped with intercommunicating pore 17 and each intercommunicating pore is connected.
As shown in Figure 2, Figure 4 shows, the internal welding device 11 of the first welder 2 comprises internal welding machine head 19, is arranged on the second guide rail 31 on workbench 1, is slidably arranged on welding machine seat 32 on the second guide rail and for passing the thrust unit of welding machine seat.Thrust unit comprises the second leading screw and nut mechanism 33, bearing block 34 and interior welding motor 35.Described bearing block 34 is arranged on workbench 1, rotating being located in bearing block 34 in screw mandrel one end of the second leading screw and nut mechanism 33.Welding machine seat 32 is connected with nut.Interior welding motor 35 is connected with screw mandrel by shaft coupling.Described internal welding machine head 19 is located on welding machine seat 32.Described the second guide rail 31 is positioned at driven pulley 13 the same side that is connected template 14, and the second guide rail extends and arranges along the axis direction that connects template.Described internal welding machine head 19 can stretch in intercommunicating pore 17 along the second guide rail 31.
Above-mentioned thrust unit can also be set to: comprise gear & rack structure, motor, described tooth bar arranges along the second guide rail 23; Described motor is located on welding machine seat 24, and described gear is located on motor and with tooth bar and is meshed.Above-mentioned thrust unit can also be replaced by cylinder or oil cylinder.
As shown in Figure 2, the outer welder 59 of the first welder 2 comprises lifting motor 23, walks crosswise motor 22, outer welding head 25, is arranged on the column 20 on workbench 1 and is arranged on the crossbeam 21 on column.Described column 20 1 sides are provided with two longitudinal rails that are parallel to each other, and are provided with first leading screw and nut mechanism longitudinally arranging between described two longitudinal rails.Described lifting motor 23 is located at column 20 tops and is connected with the screw mandrel of the first leading screw and nut mechanism.Described crossbeam 22 is slidably located on longitudinal rail and by bolt and is connected with the nut of the first leading screw and nut mechanism.One side of described crossbeam 21 is provided with transverse concave groove, is respectively equipped with a horizontal guide groove on the two sides of this transverse concave groove; The bottom of this transverse concave groove is provided with horizontal tooth bar; One cross section slide bar 24 in T shape is slidably located in transverse concave groove and is matched with horizontal guide groove.Described outer welding head 25 is located at slide bar 24 outer ends, described in walk crosswise motor 22 and be located at the other end relative with outer welding head on slide bar 24, and walk crosswise motor 22 and be provided with one and walk crosswise gear and be meshed with horizontal tooth bar.
The second welder 3 comprises internal welding device, outer welder, connects template and is arranged on the supporting seat with manhole on workbench.The welding machine of internal welding device and outer welder is submerged-arc welding machine.Described connection template rounded and can around manhole axis rotate being located in manhole, be specifically, the sidewall of manhole is provided with the first ring connected in star coaxial with manhole, is provided with four copper packings that are concave shape and copper packing and is circumferentially and is uniformly distributed in first ring connected in star.Described connection template is located in first ring connected in star and is matched with copper packing; And with on the cylindrical anchor ring that is connected template of copper packing joint and two sides, be equipped with the second annular groove.In each the second annular groove, be provided with and be somely circumferential equally distributed dividing plate, and the end face of dividing plate is positioned at the below of the second annular groove opening.Flange fixed form is located on the side that connects template.The middle part of described connection template and flange fixed form is equipped with intercommunicating pore and two intercommunicating pores are connected.
The internal welding device of the second welder comprises the second guide rail being arranged on the first installing plate, is slidably arranged on welding machine seat on the second guide rail and for passing the thrust unit of welding machine seat.Thrust unit comprises the second leading screw and nut mechanism, bearing block and interior welding motor.Described bearing block is arranged on the first installing plate.All the other structures of the internal welding device of the second welder are with reference to the internal welding device of the first welder.
The outer welder of the second welder comprises the column being arranged on the first installing plate.All the other structures of the outer welder of the second welder are with reference to the outer welder of the first welder.
As shown in Figure 5, Figure 6, the lateral surface of flange fixed form 15 be provided with eight radially arrange gathering sill 36 and gathering sills be circularly and evenly distributed.Gathering sill 36 is I-shaped groove.In described gathering sill 36, be provided with slide 37.Slide 37 comprises top shoe in T shape 38 and sliding block 39.Top shoe 38 is located at I-shaped groove top, and sliding block 39 is located at I-shaped groove bottom, and described upper and lower slide block is bolted.Described top shoe 38 end faces are provided with the screw for adpting flange.
As shown in Figure 7, Figure 8, Support bracket 6 comprises mounting bracket 40, support wheel 46.Described mounting bracket 40 bottoms are provided with roller 41 and roller can roll along the first guide rail 4.It is perpendicular that described mounting bracket 40 is provided with two articles of the 3rd guide rails 42 that are parallel to each other and the 3rd guide rail 42 and the first guide rail 4.The two-end part of the 3rd guide rail is provided with fixed head 49 between two the 3rd guide rails.On described the 3rd guide rail 42, be slidably provided with two the second installing plates 43.On the second installing plate 43 bottom surfaces, between two the 3rd guide rails 42, be provided with Connection Block 48.Between described Connection Block 48 and fixed head 49, be connected by the screw rod 47 paralleling with the 3rd guide rail 42, and the end of screw rod 47 is passed fixed head 49 and is positioned at fixed head outside.On described screw rod 47, be positioned at the inside and outside two sides of fixed head 49 places and be provided with limited block, and screw rod 47 is rotatable is arranged on fixed head.Screw rod 47 is threaded connection with Connection Block 48.On two second installing plates 43, be respectively equipped with two parallel gripper shoes 44 and gripper shoe and be parallel to the 3rd guide rail.The relative dual-side of the gripper shoe 44 on described two second installing plates 43 is inclined side, is provided with from lower to upper three breach 45 on inclined side.Described support wheel 46 is provided with rotating shaft and support wheel can rotate around the axis, and rotating shaft is arranged in breach 45, and support wheel 46 is located between two gripper shoes 44.
The steel pipe 9 that can be opposite on the four direction of upper and lower, left and right on Support bracket by Support bracket 6 regulates.As shown in Figure 7, promote Connection Block 48 by rotary screw 47 and move, so promote the second installing plate 43 and on gripper shoe 44 and support wheel 46 move; On be placed in the steel pipe 9 on support wheel 46 position make up-down adjustment.By two screw rods 47 in rotation left and right, regulate the position on two support wheel 46 left and right directions, and then left and right adjusting is made in the position of steel pipe 9.
As shown in Figure 9, horizontally moving device comprises gear & rack structure and translation motor 50.Described tooth bar 52 is arranged on workbench 1, and parallels with the first guide rail 4.Described translation motor is fixedly installed on the first installing plate 5, and described gear 51 is connected with the rotor of translation motor 50.
Above-mentioned horizontally moving device can also be set to: comprise leading screw and nut mechanism, bearing block and interior welding motor.Described bearing block is arranged on workbench, rotating being located in bearing block in screw mandrel one end of leading screw and nut mechanism.The first installing plate is connected with the nut of leading screw and nut mechanism.Motor is connected with screw mandrel by shaft coupling.
Above-mentioned horizontally moving device can also be set to: comprise belt wheel transmission mechanism, connector, motor.Described belt wheel transmission mechanism arranges along the first guide rail direction, motor by shaft coupling be connected with belt wheel.The belt of described connector connecting band wheel drive mechanism and the first installing plate.
As shown in figure 10, steel pipe cutting device 7 comprises tool holder 56, is arranged on knife rest roller 55 and the lathe tool of tool holder bottom.Described tool holder is provided with length feed swing arm 53, and swing arm 54 crosses feed.Tool holder 56 can move along the first guide rail 4 by knife rest roller.
Above-mentioned steel pipe cutting device 7 can also be set to: comprise knife rest, be arranged on the knife rest roller of tool holder bottom, knife rest can move along the first guide rail by knife rest roller.Knife rest is provided with motor and milling cutter, and motor is connected with milling cutter by shaft coupling.Described knife rest is provided with pushing motor and milling cutter is made the length feed swing arm vertically moving, and the swing arm that crosses feed that moves laterally of pushing motor and milling cutter.
Above-mentioned steel pipe cutting device 7 can also be set to: comprise knife rest, be arranged on the knife rest roller of tool holder bottom, knife rest can move along the first guide rail by knife rest roller.Described knife rest is provided with laser cutter or radium-shine cutter.
As shown in figure 11, in order to improve the bonding strength of steel pipe and flange, be also provided with angle frame 57 on the end face of workbench 1, angle frame 57 is bolted on workbench.The end face of angle frame 57 is inclined plane.On inclined plane, for placing stiffener 58, stiffener 58 is fixed by welding on steel pipe and flange, for strengthening the bonding strength of steel pipe and flange.
The concrete processing technology of a kind of steel pipe of the present embodiment and flange splicing processing integrated machine, comprises the following steps:
The first, steel pipe 9 handlings, to Support bracket 6, are fixed on flange 10 on the flange fixed form 15 on the first welder 1.
The second, regulate steel pipe position by Support bracket 6, steel pipe and flange are aligned; And by spot welding joint steel pipe and flange;
The 3rd, drive flange and steel pipe to rotate by drive motors, weld by the internal welding device of the first welder and the annulus of the inside and outside side of outer welder to steel pipe and flange.Concrete welding process can complete as follows, the outer welding head 25 of the outer welder of the first welder is aimed to the connecting sewing of steel pipe and flange lateral surface, and made the internal welding machine head 19 of internal welding device aim at the connecting sewing of steel pipe and flange medial surface by thrust unit; Drive connection template 14 and flange fixed form 15 to rotate by the driven wheel of drive motors 18 mate gear transmission mechanisms, thereby drive flange and steel pipe to rotate, in flange and steel pipe rotation, the outer welding machine of outer welder 59 and the internal welding machine work of internal welding device 11.When flange and steel pipe rotate one week, complete the welding of a flange and steel pipe.The internal welding device of certain the first welder and outer welder also respectively the annulus of the inside and outside side to steel pipe and flange weld.
The 4th, cooling until the weld seam of the steel pipe in third step and flange, shrink after, by steel pipe cutting device 7, steel pipe is carried out to fixed length cutting; Can eliminate like this after this end steel pipe 9 and flange 10 welding, because the deviation causing is shunk in welding.Can rise to original one times to the precision control of the length dimension after steel pipe and flange welding.
The 5th, another flange 10 is fixed on the flange fixed form 15 on the second welder 3, promote the first installing plate 5 by horizontally moving device, the flange 10 on the flange fixed form of fixing on the second welder is docked with the end of steel pipe 9, and by spot welding joint steel pipe and flange.
The 6th, drive flange and steel pipe to rotate by drive motors 18, weld by the internal welding device of the second welder and the annulus of the inside and outside side of outer welder to steel pipe and flange, flange and steel pipe rotate and within one week, complete welding.Concrete welding process can complete as follows, the outer welding head of the second welder 3 outer welders is aimed to the connecting sewing of steel pipe and flange lateral surface, and made the internal welding machine head 19 of internal welding device aim at the connecting sewing of steel pipe and flange medial surface by thrust unit; Then, drive connection template 1 and flange fixed form 1 to rotate by drive motors 18 by the driven wheel of gear drive, thereby drive flange and steel pipe to rotate, in flange and steel pipe rotation, the outer welding machine of outer welder 59 and the internal welding machine work of internal welding device 11.When flange and steel pipe rotate one week, complete the welding of a flange and steel pipe.The internal welding device of certain the second welder and outer welder also respectively the annulus of the inside and outside side to steel pipe and flange weld.
The 7th, carry out welding slag cleaning, and welding quality detects.
So far complete the splicing process of steel pipe and flange.Certainly, producer can root tool needs, in the junction of steel pipe and flange lateral surface, by stiffener 58 is set and be fixed by welding in steel pipe and flange on, for the bonding strength of reinforcement steel pipe and flange.
Steel pipe of the present invention and flange splicing processing integrated machine, all on same board, complete assembled the welding of the fixed length cutting of steel pipe and steel pipe and flange, so not only reduce labour intensity, improved production efficiency, and large-scale cutting machine and welding platform for lining are combined as a whole, can greatly reduce the input cost of equipment, and then reduce the production cost of the splicing processing of steel pipe and flange.
The concrete processing technology of a kind of steel pipe of the present embodiment and flange splicing processing integrated machine is compared with the processing technology in embodiment 1, and its difference is:
Before steel pipe and flange welding, specifically before steel pipe is connected with flange spot welding, first by rounding die, steel tube end part is carried out to set round, and rounding die completes after the set round of steel tube end part, rounding die be retained on steel tube end part until steel pipe and flange complete inside and outside side welding and relative cooling after, then rounding die is removed.
The set round of steel pipe in prior art normally carries out set round on special set round equipment; Steel pipe is dismantled from set round equipment completing set round; And will after set round, on lifting steel pipes jig, weld.Exist but conventionally have residual stress after steel tube end part set round, these residual stress are can not have an effect in the time that steel pipe is under normal temperature state, and under normal temperature state, the steel pipe after full circle can not produce deformation; But because steel pipe is heated, these residual stress will be had an effect and be made steel pipe produce deformation in welding process.Therefore,, in steel pipe and flange welding process, due to the effect of residual stress, deformation can occur steel pipe causes welding quality to reduce, and affects the weld strength of steel pipe and flange.
In the present embodiment, due to the setting of rounding die 8, and in steel pipe and flange welding process, rounding die is retained on steel tube end part, therefore can ensure the circularity of steel pipe, makes weldquality reach first-order weld quality standard, and improves stability of the welding quality.
Claims (8)
1. a steel pipe and flange splicing processing integrated machine, comprise workbench (1), be arranged on workbench for supporting the Support bracket (6) of steel pipe, it is characterized in that, described workbench one end is provided with the first welder (2), workbench end face is provided with the first guide rail (4) that is extended to the workbench other end by the first welder place, on the first guide rail, be slidably provided with the first installing plate (5), between described workbench and the first installing plate, be provided with the horizontally moving device for passing the first installing plate; The first installing plate is provided with the second welder (3); Described the first welder and the second welder are provided with flange fixed form (15) and two flange fixed forms are oppositely arranged; Between described the first welder and the second welder, be provided with the steel pipe cutting device (7) that can move along the first guide rail;
Described the first welder (2) comprises internal welding device (11), outer welder (59), drive motors (18), gear drive, connection template (14) and is arranged on the supporting seat with manhole (16) on workbench, described connection template (14) rounded and can around manhole axis rotate being located in manhole, the driving wheel (12) of described gear drive is connected with drive motors, driven pulley (13) be connected coaxial being arranged on of template and connect on template (14) side; What described flange fixed form (15) was relative with driven pulley is located on the another side that connects template; The middle part of described driven pulley, connection template and flange fixed form is equipped with intercommunicating pore (17) and each intercommunicating pore is connected; Described internal welding device comprises internal welding machine head (19), is arranged on the second guide rail (31) on workbench, slidably be arranged on welding machine seat (32) on the second guide rail and for passing the thrust unit of welding machine seat, described internal welding machine head is located on welding machine seat, described the second guide rail (31) is positioned at driven pulley (13) the same side that is connected template (14), and the second guide rail extends and arranges along the axis direction that connects template; Described internal welding machine head can stretch in intercommunicating pore along the second guide rail;
Described Support bracket (6) comprises mounting bracket (40), support wheel (46), described mounting bracket (40) bottom is provided with roller (41) and roller can roll along the first guide rail (4), and it is perpendicular that described mounting bracket is provided with two articles of the 3rd guide rails (42) that are parallel to each other and the 3rd guide rail and the first guide rail; The two-end part of the 3rd guide rail is provided with fixed head (49) between two the 3rd guide rails, on described the 3rd guide rail, is slidably provided with two the second installing plates (43), on the second installing plate bottom surface, between two the 3rd guide rails, is provided with Connection Block (48); Between described Connection Block and fixed head, be connected by the screw rod (47) paralleling with the 3rd guide rail, and the end of screw rod is passed fixed head and is positioned at fixed head outside; On described screw rod, be positioned at the inside and outside two sides of fixed head place and be provided with limited block, and screw rod is rotatable is arranged on fixed head, screw rod and Connection Block are threaded connection; On two second installing plates (43), be respectively equipped with two parallel gripper shoes (44) and gripper shoe is parallel to the 3rd guide rail, the relative dual-side of the gripper shoe (44) on described two second installing plates (43) is inclined side, is at least provided with from lower to upper two breach (45) on inclined side; Described support wheel is provided with rotating shaft and support wheel can rotate around the axis, and rotating shaft is arranged in breach, and support wheel (46) is located between two gripper shoes (44).
2. a kind of steel pipe according to claim 1 and flange splicing processing integrated machine, it is characterized in that, the sidewall of described manhole is provided with the first ring connected in star coaxial with manhole, is at least provided with three copper packings (28) that are concave shape and copper packing and is circumferentially and is uniformly distributed in first ring connected in star; Described connection template (14) is located in first ring connected in star and is matched with copper packing, and is equipped with at least one second annular groove (29) with on the cylindrical anchor ring that is connected template (14) of copper packing (28) joint and two sides.
3. a kind of steel pipe according to claim 1 and 2 and flange splicing processing integrated machine, it is characterized in that, described the second welder comprises internal welding device, outer welder, connects template and is arranged on the supporting seat with manhole on workbench, rounded and being located in manhole of can rotating around manhole axis of described connection template, flange fixed form is located at and is connected on the side of template; The middle part of described connection template and flange fixed form is equipped with intercommunicating pore and two intercommunicating pores are connected; Described internal welding device comprises internal welding machine head, is arranged on the second guide rail on the first installing plate, slidably be arranged on welding machine seat on the second guide rail and for passing the thrust unit of welding machine seat, described internal welding machine head is located on welding machine seat, and the second guide rail extends and arranges along the axis direction that connects template; Described internal welding machine head can stretch in intercommunicating pore along the second guide rail.
4. a kind of steel pipe according to claim 1 and 2 and flange splicing processing integrated machine, it is characterized in that, described outer welder (59) comprises lifting motor (23), walk crosswise motor (22), outer welding head (25), be arranged on the column (20) on workbench and be arranged on the crossbeam (21) on column, described column (20) one sides are provided with two longitudinal rails that are parallel to each other, between described two longitudinal rails, be provided with first leading screw and nut mechanism longitudinally arranging, described lifting motor (23) is located at column top and is connected with the screw mandrel of the first leading screw and nut mechanism, described crossbeam (21) is slidably located on longitudinal rail and by bolt and is connected with the nut of the first leading screw and nut mechanism, one side of described crossbeam (21) is provided with transverse concave groove, is respectively equipped with a horizontal guide groove on the two sides of this transverse concave groove, and the bottom of this transverse concave groove is provided with horizontal tooth bar, one cross section slide bar (24) in T shape is slidably located in transverse concave groove and is matched with horizontal guide groove, described outer welding head (25) is located at slide bar outer end, described in walk crosswise motor and be located at the other end relative with outer welding head on slide bar, and walk crosswise motor and be provided with one and walk crosswise gear and be meshed with horizontal tooth bar.
5. a kind of steel pipe according to claim 1 and 2 and flange splicing processing integrated machine, it is characterized in that, the lateral surface of flange fixed form (15) is provided with at least three gathering sill (36) and gathering sills that radially arrange and is circularly and evenly distributed, gathering sill is I-shaped groove, in described gathering sill, be provided with slide (37), slide comprises top shoe in T shape (38) and sliding block (39), top shoe is located at I-shaped groove top, sliding block is located at I-shaped groove bottom, and described upper and lower slide block is bolted; Described top shoe end face is provided with the screw for adpting flange.
6. a kind of steel pipe according to claim 1 and 2 and flange splicing processing integrated machine, is characterized in that, horizontally moving device comprises gear & rack structure and translation motor (50); Described tooth bar (52) is arranged on workbench (1) above and parallels with the first guide rail (4); It is upper that described translation motor is fixedly installed on the first installing plate (5), and described gear (51) is connected with the rotor of translation motor.
7. a kind of steel pipe according to claim 1 and 2 and flange splicing processing integrated machine, is characterized in that, comprise rounding die (8), rounding die comprises two symmetrically arranged semicircle anchor ears, and the two ends of two anchor ears are bolted.
8. the processing technology of a kind of steel pipe claimed in claim 1 and flange splicing processing integrated machine, is characterized in that, comprises the following steps:
The first, handling steel tubes, to Support bracket, is fixed on flange on the flange fixed form on the first welder;
The second, regulate steel pipe position by Support bracket, steel pipe and flange are aligned; And by spot welding joint steel pipe and flange;
The 3rd, drive flange and steel pipe to rotate by drive motors, weld by the internal welding device of the first welder and the annulus of the inside and outside side of outer welder to steel pipe and flange;
The 4th, cooling until the weld seam of the steel pipe in third step and flange, shrink after, by steel pipe cutting device, steel pipe is carried out to fixed length cutting;
The 5th, another flange is fixed on the flange fixed form on the second welder, promote the first installing plate by horizontally moving device, the flange on the flange fixed form of fixing on the second welder is docked with the end of steel pipe, and by spot welding joint steel pipe and flange;
The 6th, drive flange and steel pipe to rotate by drive motors, weld by the internal welding device of the second welder and the annulus of the inside and outside side of outer welder to steel pipe and flange;
The 7th, carry out welding slag cleaning, and welding quality detects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210158851.XA CN102729045B (en) | 2012-05-22 | 2012-05-22 | Integrated steel pipe and flange splicing and machining machine and machining process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210158851.XA CN102729045B (en) | 2012-05-22 | 2012-05-22 | Integrated steel pipe and flange splicing and machining machine and machining process thereof |
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| CN102729045A CN102729045A (en) | 2012-10-17 |
| CN102729045B true CN102729045B (en) | 2014-06-18 |
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