CN108723689A - A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding - Google Patents
A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding Download PDFInfo
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- CN108723689A CN108723689A CN201810911542.2A CN201810911542A CN108723689A CN 108723689 A CN108723689 A CN 108723689A CN 201810911542 A CN201810911542 A CN 201810911542A CN 108723689 A CN108723689 A CN 108723689A
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- exchanger tube
- shaft
- pressure roller
- shafts
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- 238000003466 welding Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims description 37
- 230000007246 mechanism Effects 0.000 claims description 28
- 230000001360 synchronised effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000270295 Serpentes Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding, the clamping device tool there are three it is parallel to each other and it is equal can be around the roll shaft of own axis, the column-like paths for placing heat exchanger tube are cooperatively formed between three roll shafts, it is equipped with one section of changeover portion in the middle part of three roll shafts, the outer diameter of changeover portion is less than the outer diameter of the circumference for clamping heat exchanger tube on roll shaft, two heat exchanger tubes are placed between three roll shafts, by three roll shaft cooperations circumferentially to clamp two heat exchanger tubes simultaneously, keep two heat exchanger tubes and three roll shafts tangent, one end alignment to be welded of two heat exchanger tubes, and between the changeover portion of three roll shafts, make interface when two heat exchanger tube alignment and there are the spaces needed for welder welding between three roll shafts；Then so that three roll shafts and two heat exchanger tubes is worked in coordination and is rotated simultaneously, two heat exchanger tubes is made to rotate synchronously, the side of interface, the circumferential direction by two heat exchanger tubes along interface are welded when welder can be aligned from two heat exchanger tubes.
Description
Technical field
The present invention relates to heat exchanger tube butt welding field more particularly to a kind of heat exchanger tube clamping method for heat exchanger tube butt welding and
Device.
Background technology
Coil heat exchanger is the heat exchanger using coiled pipe as heat transfer element, the snake used in existing coil heat exchanger
Shape pipe during fabrication, due to its length is longer and repeatedly circle round detour the characteristics of, common method be first prepare more convenient for plus
The shorter straight tube heat exchanger tube of the length of work, then by the identical heat exchanger tube butt welding successively of more outer diameters, to make the overall length of heat exchanger tube
Degree reaches the length needed for coiled pipe, then will carry out bend pipe to the heat exchanger tube of postwelding, to obtain coiled pipe, therefore, heat exchange
Pipe butt welding is the important procedure in coiled pipe manufacture.
When carrying out heat exchanger tube butt welding, existing method is to clamp two heat exchange respectively with two opposite scroll chucks
Pipe, and one end alignment for keeping two heat exchanger tubes to be welded, then make two scroll chuck synchronous rotaries, while from two heat exchanger tubes
The side of interface is welded, as soon as rotating synchronously circle as two heat exchanger tubes are driven by two scroll chucks, two can exchange heat
The interface of pipe circumferentially welds.
Scroll chuck is moving radially using three movable jaws being distributed on chuck body, and by the work of Workpiece clamping
Tool, is made of chuck body, movable jaw and claw driving mechanism, screw thread and dish-shaped umbrella tooth of three movable jaws by its back side
The flat thread at the wheel back side is meshed, and when rotating cone pinion, by dish-shaped bevel-gear rotating, makes movable jaw with dish
The flat thread at the bevel gear back side moves, close or exit to scroll chuck center to drive three movable jaws to synchronize, with
Clamp different size of workpiece；
Scroll chuck is usually used in horizontal lathe, for clamping workpiece and workpiece is driven to rotate, make positioned at workpiece side lathe tool just
Can be by workpiece vehicle at the excircle or endoporus coaxial with scroll chuck, and be also that three-jaw similarly is utilized in heat exchanger tube welding
The function of chuck makes the welder positioned at heat exchanger tube side that can circumferentially weld the interface of two heat exchanger tubes.
Though but scroll chuck can clamp workpiece by three movable jaws, be difficult to connecing by movable jaw and workpiece
It touches and further accurately to ensure position of the workpiece with respect to scroll chuck, though cause scroll chuck to can guarantee clamping heat exchanger tube, it is right
The positioning accuracy of heat exchanger tube is relatively low, can not automatically adjust heat exchanger tube to coaxial with scroll chuck, so in order to realize that two are changed
Heat pipe rotate synchronously, on heat exchanger tube clamping to scroll chuck after, need by beat table measurement the methods of, artificial repeated measurement two
Concentricity between root heat exchanger tube and heat exchanger tube and scroll chuck, not open close mistake taps, touches heat exchanger tube to be finely adjusted,
Until each concentricity is satisfied by requirement, very cumbersome, inconvenient, the inefficiency of operation；
Also, there is also disadvantages easy to wear for scroll chuck, can make to be in bell mouth shape between three movable jaws after abrasion, and
Make three movable jaws with respect to the axis line skew of scroll chuck, after causing heat exchanger tube to be clamped by movable jaw not with scroll chuck
Coaxially, the respective degree of wear difference of two scroll chucks is added, to make the heat exchanger tube on two scroll chucks can not essence
Really alignment, causes two scroll chucks that two heat exchanger tubes can not be driven to rotate coaxially, and fails to rotate synchronously in two heat exchanger tubes
In the case of welded, weld defect can be caused, influence welding quality, making the coiled pipe obtained after final bend pipe, there are in pipe
The security risk that medium is revealed from weld seam, it is difficult to meet the requirement of coil heat exchanger.
Invention content
It is an object of the present invention to provide a kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding, Neng Goujian
Just alignment and the synchronous rotation for, reliably ensureing two heat exchanger tubes make after heat exchanger tube clamping it is not necessary that measurement and fine tuning is repeated,
And the influence of clamping device abrasion exchange heat pipe butt welding can be reduced.
Used technical solution is the present invention to solve above-mentioned technical problem：A kind of heat exchanger tube for heat exchanger tube butt welding
Clamping method, between two heat exchanger tubes are first placed on three roll shafts parallel to each other, by three roll shafts cooperations with circumferentially
Two heat exchanger tubes are clamped simultaneously, keep two heat exchanger tubes and three roll shafts tangent, one end alignment to be welded of two heat exchanger tubes, and
Between the smaller changeover portion of three sections of outer diameters in the middle part of three roll shafts, to make interface when two heat exchanger tubes alignment and three
There are the spaces needed for welder welding between roll shaft；Then three roll shafts and two heat exchanger tubes is made to work in coordination and simultaneously
Rotation, to make two heat exchanger tubes rotate synchronously, the side of interface when welder being enable to be aligned from two heat exchanger tubes, by two
Root heat exchanger tube is welded along the circumferential direction of interface.
Preferably, first two heat exchanger tubes are placed between two outer diameters are identical and horizontally disposed roller carrier shaft, two
Roller carrier shaft is arranged to symmetrical about a vertical reference plane, so that two roller carrier shafts is coordinated support heat exchanger tube, then use pressure roller shaft
The top of two heat exchanger tubes is pushed down right over heat exchanger tube, to circumferentially clamp two heat exchanger tubes simultaneously, and makes two to change
Interface when heat pipe is aligned is located between the changeover portion in the middle part of roller carrier shaft and pressure roller shaft；Then two roller carrier shafts are driven to synchronize rotation
Turn, by the rubbing action between roll shaft and heat exchanger tube, heat exchanger tube and pressure roller shaft is driven to rotate simultaneously, to realize two heat exchange
Pipe rotates synchronously.
Preferably, it is perpendicular by two cylinder synchronous drive pressure roller shafts after two heat exchanger tubes are placed between two roller carrier shafts
It directly moves downward, pressure roller shaft is made to push down two heat exchanger tubes, the gas supply air pressure of two cylinders is identical and controls 0.4 ~ 0.6
MPa；Wire velocity control when two heat exchanger tubes are driven and rotated synchronously by roller carrier shaft is in 3 ~ 6mm/s.
A kind of heat exchanger tube clamping device for heat exchanger tube butt welding, there are three change two for coordinating for clamping device tool
Heat pipe is along its circumferential roll shaft clamped simultaneously, and three roll shafts are parallel to each other and three roll shafts can be around own axis, three
One is cooperatively formed between roll shaft for placing the column-like paths of heat exchanger tube, the column-like paths matched with the outer diameter of heat exchanger tube and
It is tangent with three roll shafts；One section of changeover portion is equipped in the middle part of three roll shafts, the outer diameter of changeover portion is less than on roll shaft for clamping
The outer diameter of the circumference of heat exchanger tube, and the changeover portion on three roll shafts is corresponded along the position of roll shaft axial direction, in order to three rollers
The space needed for welder welding is reserved between the changeover portion and heat exchanger tube of axis.
Preferably, three roll shafts are horizontally disposed, are divided into two roller carrier shafts for coordinating support heat exchanger tube
With one for pushing down the pressure roller shaft at the top of heat exchanger tube right over heat exchanger tube, two roller carrier shafts are rotatably erected at rack
On, and it is symmetrical about the perpendicular comprising pressure roller shaft central axes, it is additionally provided in the rack for passing power to drive two
The transmission mechanism of a roller carrier shaft synchronous rotary and the hold-down mechanism for driving pressure roller shaft vertically moving, pressure roller shaft
It rotatably connect and is located above roller carrier shaft with hold-down mechanism.
Preferably, two roller carrier shafts are erected at by bearing in rack, and the transmission mechanism includes one
It is erected at the transmission shaft in rack by bearing, transmission shaft is located at below two roller carrier shafts and is arranged in parallel with roller carrier shaft, is driven
The central axes of the central axes of axis and the pressure roller shaft are located at same perpendicular, be set on described two roller carrier shafts there are one
Driven gear, there are one the driving gears engaged simultaneously with two driven gears and one for driving transmission for suit on transmission shaft
The dynamic belt pulley of shaft rotation.
Preferably, the pressure roller shaft is set in by a pair of bearings in a connecting rod, in the bearing in connecting rod
Axis is overlapped with the central axes of pressure roller shaft, and the both ends of connecting rod extend through the both ends of the surface of pressure roller shaft and extend to outside pressure roller shaft
Side, two parts that connecting rod is located at outside pressure roller shaft are connect with hold-down mechanism.
Preferably, the connecting rod is located at two parts outside pressure roller shaft and all has two sides, the side and connecting rod
Both ends of the surface along its length are vertically to be arranged, and hold-down mechanism connection is opened up on Y shape block there are two Y shape block
Have and is located at two parts outside pressure roller shaft with the matched groove in described two sides, connecting rod and is threaded through the recessed of Y shape block respectively
In slot, and it is connect with Y shape block by the positioning pin through Y shape block and connecting rod；Two sections of vertical and phases are offered in the rack
To the sliding slot of setting, the both ends of connecting rod are separately positioned in one section of sliding slot, and two sides are set by the side wall card of sliding slot
Face, and the both ends of the surface of connecting rod along its length are set by the slot bottom card of two sliding slots, to limit connecting rod and pressure roller shaft edge
The degree of freedom in any level direction.
Preferably, the rack is connected and composed by one piece of bottom plate, two pieces of risers and one piece of top plate, is opened on two pieces of risers
Equipped with through-hole corresponding with roller carrier shaft and transmission shaft respectively, the bearing on roller carrier shaft and transmission shaft is installed in respective through-hole
It is interior, also all offered on two pieces of risers it is corresponding with the column-like paths for for heat exchanger tube by heat exchange tube passage, it is described
Hold-down mechanism be mounted on top plate on.
Preferably, the hold-down mechanism is two cylinders mounted on top plate upper surface, and two cylinder bottoms are all connected with
There are cylinder rod that simultaneously can be vertically moving through top plate, two cylinder rods to be rotatablely connected respectively with the both ends of pressure roller shaft；Institute
Wherein one end of transmission shaft is stated from being extended between two risers on the outside of two risers, the belt pulley is sleeved on transmission shaft and is located at
On circumference on the outside of two risers；The rack further includes two pieces of protection side panels, the bottom surface of protection side panel and the bottom plate
Upper surface connects, and the both ends of the surface of protection side panel along its length are connect with two risers respectively, and the top surface of protection side panel is along perpendicular
Histogram is between the least significant end of central axes and roller carrier shaft positioned at roller carrier shaft；The riser connects structure by upper vertical plate with lower riser
At upper vertical plate bottom end and lower riser top correspondence offer semicircle orifice, pass through the semicircle of the semicircle orifice and lower riser of upper vertical plate
Hole surrounds through-hole corresponding with roller carrier shaft.
According to above-mentioned technical proposal, the beneficial effects of the invention are as follows：
A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding provided by the invention, simultaneously with three parallel roll shafts
Two heat exchanger tubes are clamped, keep two heat exchanger tubes and three roll shafts tangent, and the same column between three roll shafts is logical
In road, so after heat exchanger tube is placed between three roll shafts, the positioning action of heat pipe is exchanged by roll shaft, just necessarily can guarantee
Two heat exchanger tube automatic aligning to concentricities are met the requirements, and are measured and fine tuning without playing table repeatedly, also, without adjusting again
Position relationship between heat exchanger tube and roll shaft, avoid using when scroll chuck since scroll chuck positioning accuracy is relatively low, so
Need to exchange heat pipe to measure and finely tune and just can guarantee heat exchanger tube and the coaxial drawback of scroll chuck, make it is of the invention compare it is existing
Technology, it is convenient to omit the process of big measurement and fine tuning, simplicity are reliably achieved two heat exchanger tubes alignment；Along with three rollers
Axis and two heat exchanger tubes are worked in coordination and are rotated simultaneously, also just necessarily can guarantee that two heat exchanger tubes are with identical rotating speed and steering
It rotates synchronously, so the present invention, compared with the prior art is using two scroll chucks, operation is greatly easy, efficiency also higher, together
When but can more reliably realize the coaxial clamping of two heat exchanger tubes and rotate synchronously.
Compared with scroll chuck, roll shaft is not easy to produce abrasion by use for a long time, even if generating certain abrasion, due to
Three roll shafts are to clamp two heat exchanger tubes simultaneously, and rotate simultaneously with two heat exchanger tubes, so the degree of wear of three roll shafts
Also relatively uniform, make three roll shafts still and can coordinate two heat exchanger tubes is made to be aligned and rotate synchronously, avoid in the prior art because
For scroll chuck abrasion make heat exchanger tube can not Accurate align, cause the rotation of two heat exchanger tubes asynchronous and cause welding lack
Sunken problem can ensure welding quality, eliminate the security risk of weld seam leakage, reduce device abrasion exchange heat pipe butt welding
It influences.
Further, three roll shafts are divided into identical two outer diameters and horizontally disposed roller carrier shaft and one are located at two supports
Pressure roller shaft right between roll shaft, between two heat exchanger tubes are first placed on two roller carrier shafts because two roller carrier shafts about
As soon as vertical reference plane is symmetrical, so two roller carrier shafts can coordinate support heat exchanger tube, then use pressure roller shaft from heat exchanger tube again
Surface is pushed down at the top of two heat exchanger tubes, to circumferentially clamp two heat exchanger tubes simultaneously, first uses pressure roller again with roller carrier shaft support
The method that axis is pushed down, make the placement of heat exchanger tube and clamp it is more easy to be reasonable, meanwhile, because heat exchanger tube be located in two about
Including between the symmetrical roller carrier shaft of the perpendicular of pressure roller shaft central axes, make between heat exchanger tube and two roller carrier shafts respectively because of pressure roller
The active force that axis is generated from the extruding of surface is identical, is further ensured that mill of two roller carrier shafts when driving heat exchanger tube rotation
Damage degree is identical, improves the life and reliability of device.
One transmission shaft is set below two roller carrier shafts, by the driving gear and two roller carrier shafts on transmission shaft
Driven gear engages simultaneously, and to ensure that transmission shaft can drive two roller carrier shafts to rotate synchronously, the kind of drive not only simply may be used
It leans on, and save space to make device overall compact；Pressure roller shaft is set as being set in connecting rod by bearing, and makes connecting rod
Both ends are connect with hold-down mechanism, and to realize simultaneously, pressure roller shaft is rotatable around its axis and hold-down mechanism drives pressure roller shaft to transport vertically
It is dynamic；The both ends of connecting rod are arranged in vertical sliding slot, the two sides of connecting rod are set by the side wall card of sliding slot, and pass through two
The slot bottom card of sliding slot sets the both ends of the surface of connecting rod, to limit connecting rod and pressure roller shaft along the degree of freedom in any level direction, keeps away
Exempt from pressure roller shaft to shift in vertical and straight movement, prevents from damaging hold-down mechanism because of pressure roller axle offset；Two can also be arranged in rack
Block protection side panel, by protection side panel and riser cooperation to protect transmission shaft, and protection side panel is not higher than the axis of roller carrier shaft,
Protection side panel is set not interfere heat exchanger tube to weld.
Description of the drawings
Fig. 1 is the structural schematic diagram of the clamping device of the present invention；
Fig. 2 is the schematic front view of clamping device；
Fig. 3 is the left view schematic diagram of clamping device；
Fig. 4 is schematic cross-sectional view of the clamping device along A-A；
Fig. 5 is schematic cross-sectional view of the clamping device along B-B；
Fig. 6 is schematic cross-sectional view of the clamping device along C-C；
Fig. 7 is schematic cross-sectional view of the clamping device along D-D；
Fig. 8 is schematic cross-sectional view of the clamping device along E-E；
Fig. 9 is the structural schematic diagram of pressure roller shaft, connecting rod, Y shape block and positioning pin.
It is marked in figure：1, heat exchanger tube, 2, changeover portion, 3, roller carrier shaft, 4, pressure roller shaft, 5, transmission shaft, 6, driving gear, 7, quilt
Moving gear, 8, belt pulley, 9, connecting rod, 901, side, 10, Y shape block, 11, positioning pin, 12, sliding slot, 13, bottom plate, 14, riser,
1401, upper vertical plate, 1402, lower riser, 15, top plate, 16, heat exchange tube passage, 17, cylinder, 18, protection side panel.
Specific implementation mode
Referring to attached drawing, specific implementation mode is as follows：
Two heat exchanger tubes are first placed on three roll shafts parallel to each other by a kind of heat exchanger tube clamping method for heat exchanger tube butt welding
Between, by three roll shaft cooperations circumferentially to clamp two heat exchanger tubes simultaneously, keep two heat exchanger tubes and three roll shafts tangent,
Ensure one end alignment to be welded of two heat exchanger tubes after clamping, and is located at the smaller transition of three sections of outer diameters in the middle part of three roll shafts
Between section, there are the skies needed for welder welding between the interface and three roll shafts when to make two heat exchanger tubes be aligned
Between；Then three roll shafts and two heat exchanger tubes is made to work in coordination and rotate simultaneously, can be drive three roll shafts in one or
Multiple active rotations together can also be driving two to drive remaining roll shaft and heat exchanger tube by rubbing action while rotate
One or two in heat exchanger tube active rotation together, to drive all roll shafts and heat exchanger tube by rubbing action while rotate,
It is final that two heat exchanger tubes is allowed to rotate synchronously, at this point, welder can be since the side of interface when two heat exchanger tubes are aligned
Welding, and the circumferential direction by two heat exchanger tubes along interface is welded into one.
Before clamping, three roll shafts are divided into two roller carrier shafts and a pressure roller shaft in advance, first change two in clamping
Heat pipe is placed between two outer diameters are identical and horizontally disposed roller carrier shaft, and two roller carrier shafts are arranged to about a vertical base
Quasi- face is symmetrical, makes two roller carrier shafts that can coordinate support heat exchanger tube, then push down two right over heat exchanger tube with pressure roller shaft
The top of heat exchanger tube to circumferentially clamp two heat exchanger tubes simultaneously, and makes interface when two heat exchanger tube alignment be located at carrying roller
Between changeover portion in the middle part of axis and pressure roller shaft；Then two roller carrier shaft synchronous rotaries are driven, by between roll shaft and heat exchanger tube
Rubbing action drives heat exchanger tube and pressure roller shaft to rotate simultaneously, to realize that two heat exchanger tubes rotate synchronously.
After two heat exchanger tubes are placed between two roller carrier shafts, can by two cylinder synchronous drive pressure roller shafts vertically to
Lower movement makes pressure roller shaft push down two heat exchanger tubes, and the gas supply air pressure of two cylinders is identical and controls in 0.4 ~ 0.6 MPa；Two
Wire velocity control when root heat exchanger tube is driven and rotated synchronously by roller carrier shaft is in 3 ~ 6mm/s.
A kind of heat exchanger tube clamping device for heat exchanger tube butt welding, there are three change two for coordinating for clamping device tool
Heat pipe 1 is along its circumferential roll shaft clamped simultaneously, and three roll shafts are parallel to each other and three roll shafts can be around own axis, three
The column-like paths for placing heat exchanger tube 1 are cooperatively formed between roll shaft, the column-like paths are matched with the outer diameter of heat exchanger tube 1
And it is tangent with three roll shafts；One section of changeover portion 2 is equipped in the middle part of three roll shafts, the outer diameter of changeover portion 2, which is less than on roll shaft, to be used for
The outer diameter of the circumference of heat exchanger tube 1 is clamped, and the changeover portion 2 on three roll shafts is corresponded along the position of roll shaft axial direction, in order to
The space needed for welder welding is reserved between the changeover portion 2 and heat exchanger tube 1 of three roll shafts.
When specific setting, the outer diameter of the circumference on three roll shafts for clamping heat exchanger tube 1 could be provided as 45 ~ 50mm, mistake
The outer diameter for crossing section 2 is smaller 5 ~ 10mm than the outer diameter of the circumference for clamping heat exchanger tube 1 on roll shaft, so that three roll shafts is coordinated and clamps
Outer diameter and does not interfere welder welding in the heat exchanger tube of 20 ~ 35mm.
Three roll shafts may be configured as and horizontal direction parallel, and be divided into two for coordinate support heat exchanger tube 1
Roller carrier shaft 3 and a pressure roller shaft 4 for pushing down the top of heat exchanger tube 1 from the surface of heat exchanger tube 1, two roller carrier shafts 3 can turn
Dynamic is erected in rack, and symmetrical about the perpendicular comprising 4 central axes of pressure roller shaft, is additionally provided in the rack for passing
Graduating power is to drive the transmission mechanism of two 3 synchronous rotaries of roller carrier shaft and for driving pressure roller shaft 4 vertically moving
Hold-down mechanism, pressure roller shaft 4 rotatably connect with hold-down mechanism and are located at 3 top of roller carrier shaft.
Two roller carrier shafts 3 are erected at by bearing in rack, and the transmission mechanism passes through axis including one
Bolster is located at the transmission shaft 5 in rack, and transmission shaft 5 is located at two 3 lower sections of roller carrier shaft and is arranged in parallel with roller carrier shaft 3, transmission shaft 5
The central axes of central axes and the pressure roller shaft 4 be located at same perpendicular, be set on described two roller carrier shafts 3 there are one
Driven gear 7, there are one the driving gears 6 engaged simultaneously with two driven gears 7 and one for driving for suit on transmission shaft 5
The belt pulley 8 that transmission shaft 5 rotates.
The pressure roller shaft 4 is set in by a pair of bearings in a connecting rod 9, the central axes of the bearing in connecting rod 9
It is overlapped with the central axes of pressure roller shaft 4, the both ends of connecting rod 9 extend through the both ends of the surface of pressure roller shaft 4 and extend to outside pressure roller shaft 4
Side, two parts that connecting rod 9 is located at outside pressure roller shaft 4 are connect with hold-down mechanism.
The connecting rod 9 is located at two parts outside pressure roller shaft 4 and all has two sides 901, the side 901 and connecting rod
9 both ends of the surface along its length are vertically to be arranged, and hold-down mechanism connection is there are two Y shape block 10, on Y shape block 10
It offers and is located at two parts outside pressure roller shaft 4 with 901 matched groove of described two sides, connecting rod 9 and is threaded through a Y respectively
In the groove of shape block 10, and by being connect with Y shape block 10 through Y shape block 10 and the positioning pin of connecting rod 9 11；It is opened in the rack
Equipped with two sections of sliding slots 12 that are vertical and being oppositely arranged, the both ends of connecting rod 9 are separately positioned in one section of sliding slot 12, pass through sliding slot 12
Side wall card set two sides 901, and the both ends of connecting rod 9 along its length are set by the slot bottom card of two sliding slots 12
Face, to limit the degree of freedom of connecting rod 9 and pressure roller shaft 4 along any level direction.
The rack is connected and composed by one piece of bottom plate, 13, two pieces of risers 14 and one piece of top plate 15, on two pieces of risers 14
Through-hole corresponding with roller carrier shaft 3 and transmission shaft 5 respectively is offered, the bearing on roller carrier shaft 3 and transmission shaft 5 is installed in respective
Also all offered in through-hole, on two pieces of risers 14 it is corresponding with the column-like paths for for heat exchanger tube 1 by heat exchanger tube it is logical
Road 16, the hold-down mechanism are mounted on top plate 15.
The hold-down mechanism is two cylinders 17 mounted on 15 upper surface of top plate, and two 17 bottoms of cylinder are respectively connected with
Through top plate 15, simultaneously the vertically moving cylinder rod of energy, two cylinder rods are rotatablely connected with the both ends of pressure roller shaft 4 respectively；Institute
The wherein one end for stating transmission shaft 5 is sleeved on transmission from two 14 outsides of riser, the belt pulley 8 is extended between two risers 14
Axis 5 is located on the circumference in two 14 outsides of riser；The rack further includes two pieces of protection side panels 18, the bottom surface of protection side panel 18
It being connect with the upper surface of the bottom plate 13, the both ends of the surface of protection side panel 18 along its length are connect with two risers 14 respectively,
The top surface of protection side panel 18 is vertically located between the central axes and the least significant end of roller carrier shaft 3 of roller carrier shaft 3；The riser
14 are connected and composed by upper vertical plate 1401 and lower riser 1402, and 1401 bottom end of upper vertical plate and lower 1402 top of riser correspondence offer
Semicircle orifice surrounds through-hole corresponding with roller carrier shaft 3 by the semicircle orifice of upper vertical plate 1401 and the semicircle orifice of lower riser 1402.
Claims (10)
1. a kind of heat exchanger tube clamping method for heat exchanger tube butt welding, it is characterised in that：Two heat exchanger tubes are first placed on three
Between roll shaft parallel to each other, by the cooperation of three roll shafts circumferentially to clamp two heat exchanger tubes simultaneously, make two heat exchanger tubes with
Three roll shafts are tangent, one end alignment to be welded of two heat exchanger tubes, and three sections of outer diameters in the middle part of three roll shafts are smaller
Between changeover portion, there are needed for welder welding between the interface and three roll shafts when to make two heat exchanger tubes be aligned
Space；Then so that three roll shafts and two heat exchanger tubes is worked in coordination and is rotated simultaneously, to make two heat exchanger tubes rotate synchronously, make
The side of interface, the circumferential direction by two heat exchanger tubes along interface are welded when welder can be aligned from two heat exchanger tubes.
2. a kind of heat exchanger tube clamping method for heat exchanger tube butt welding according to claim 1, it is characterised in that：First by two
Root heat exchanger tube is placed between two outer diameters are identical and horizontally disposed roller carrier shaft, and two roller carrier shafts are arranged to perpendicular about one
Straight reference plane is symmetrical, so that two roller carrier shafts is coordinated support heat exchanger tube, then push down two right over heat exchanger tube with pressure roller shaft
The top of root heat exchanger tube to circumferentially clamp two heat exchanger tubes simultaneously, and makes interface when two heat exchanger tube alignment be located at support
Between changeover portion in the middle part of roll shaft and pressure roller shaft；Then two roller carrier shaft synchronous rotaries are driven, by between roll shaft and heat exchanger tube
Rubbing action, drive heat exchanger tube and pressure roller shaft to rotate simultaneously, to realize two heat exchanger tubes synchronous rotations.
3. a kind of heat exchanger tube clamping method for heat exchanger tube butt welding according to claim 2, it is characterised in that：Two are changed
It after heat pipe is placed between two roller carrier shafts, is moved straight down by two cylinder synchronous drive pressure roller shafts, makes pressure roller shaft will
Two heat exchanger tubes are pushed down, and the gas supply air pressure of two cylinders is identical and controls in 0.4 ~ 0.6 MPa；Two heat exchanger tubes are by roller carrier shaft band
Wire velocity control when moving and rotating synchronously is in 3 ~ 6mm/s.
4. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding, it is characterised in that：There are three for matching for clamping device tool
It closes two heat exchanger tubes（1）Along its circumferential roll shaft clamped simultaneously, three roll shafts are parallel to each other and three roll shafts can be around itself
Axis rotates, and one is cooperatively formed between three roll shafts for placing heat exchanger tube（1）Column-like paths, the column-like paths with change
Heat pipe（1）Outer diameter matching and it is tangent with three roll shafts；It is equipped with one section of changeover portion in the middle part of three roll shafts（2）, changeover portion（2）
Outer diameter be less than on roll shaft for clamping heat exchanger tube（1）Circumference outer diameter, and the changeover portion on three roll shafts（2）Along roll shaft axis
To position correspond, in order to the changeover portion of three roll shafts（2）And heat exchanger tube（1）Between reserve welder welding
Required space.
5. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 4, it is characterised in that：Described
Three roll shafts are horizontally disposed, be divided into two for coordinate support heat exchanger tube（1）Roller carrier shaft（3）It is used for from heat exchange with one
Pipe（1）Surface push down heat exchanger tube（1）The pressure roller shaft at top（4）, two roller carrier shafts（3）Rotatably it is erected in rack,
And about including pressure roller shaft（4）The perpendicular of central axes is symmetrical, is additionally provided in the rack for passing power to drive two
A roller carrier shaft（3）The transmission mechanism of synchronous rotary and for driving pressure roller shaft（4）Vertically moving hold-down mechanism,
Pressure roller shaft（4）It is rotatably connect with hold-down mechanism and is located at roller carrier shaft（3）Top.
6. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 5, it is characterised in that：Described
Two roller carrier shafts（3）It is erected in rack by bearing, the transmission mechanism is erected at rack including one by bearing
On transmission shaft（5）, transmission shaft（5）Positioned at two roller carrier shafts（3）Lower section and and roller carrier shaft（3）It is arranged in parallel, transmission shaft（5）'s
Central axes and the pressure roller shaft（4）Central axes be located at same perpendicular, described two roller carrier shafts（3）On be set with one
A driven gear（7）, transmission shaft（5）There are one upper suits and two driven gears（7）The driving gear of engagement simultaneously（6）With one
It is a to be used to drive transmission shaft（5）The belt pulley of rotation（8）.
7. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 5, it is characterised in that：Described
Pressure roller shaft（4）It is set in a connecting rod by a pair of bearings（9）On, connecting rod（9）On bearing central axes and pressure roller shaft
（4）Central axes overlap, connecting rod（9）Both ends extend through pressure roller shaft（4）Both ends of the surface and extend to pressure roller shaft（4）Outside
Side, connecting rod（9）Positioned at pressure roller shaft（4）Outer two parts are connect with hold-down mechanism.
8. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 7, it is characterised in that：The company
Extension bar（9）Positioned at pressure roller shaft（4）Outer two parts all have two sides（901）, the side（901）And connecting rod（9）Edge
The both ends of the surface of length direction are vertically to be arranged, and there are two Y shape blocks for the hold-down mechanism connection（10）, Y shape block（10）
On offer and described two sides（901）Matched groove, connecting rod（9）Positioned at pressure roller shaft（4）Outer two parts are worn respectively
It is located at a Y shape block（10）Groove in, and by running through Y shape block（10）And connecting rod（9）Positioning pin（11）With Y shape block
（10）Connection；Two sections of sliding slots that are vertical and being oppositely arranged are offered in the rack（12）, connecting rod（9）Both ends be respectively set
In one section of sliding slot（12）It is interior, pass through sliding slot（12）Side wall card set two sides（901）, and pass through two sliding slots（12）
Slot bottom card set connecting rod（9）Both ends of the surface along its length, to limit connecting rod（9）And pressure roller shaft（4）Along any level
The degree of freedom in direction.
9. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 6, it is characterised in that：Described
Rack is by one piece of bottom plate（13）, two pieces of risers（14）With one piece of top plate（15）It connects and composes, two pieces of risers（14）On offer
Respectively with roller carrier shaft（3）And transmission shaft（5）Corresponding through-hole, roller carrier shaft（3）And transmission shaft（5）On bearing be installed in respectively
Through-hole in, two pieces of risers（14）On also all offer it is corresponding with the column-like paths for for heat exchanger tube（1）By change
Heat pipe channel（16）, the hold-down mechanism is mounted on top plate（15）On.
10. a kind of heat exchanger tube clamping device for heat exchanger tube butt welding according to claim 9, it is characterised in that：It is described
Hold-down mechanism be mounted on top plate（15）Two cylinders of upper surface（17）, two cylinders（17）Bottom is respectively connected with through top
Plate（15）And can vertically moving cylinder rod, two cylinder rods respectively with pressure roller shaft（4）Both ends rotation connection；It is described
Transmission shaft（5）Wherein one end from two risers（14）Between extend to two risers（14）Outside, the belt pulley（8）Suit
In transmission shaft（5）Positioned at two risers（14）On the circumference in outside；The rack further includes two pieces of protection side panels（18）, protection
Side plate（18）Bottom surface and the bottom plate（13）Upper surface connection, protection side panel（18）Both ends of the surface difference along its length
With two risers（14）Connection, protection side panel（18）Top surface vertically be located at roller carrier shaft（3）Central axes and roller carrier shaft
（3）Least significant end between；The riser（14）By upper vertical plate（1401）With lower riser（1402）It connects and composes, upper vertical plate
（1401）Bottom end and lower riser（1402）Top correspondence offers semicircle orifice, passes through upper vertical plate（1401）Semicircle orifice and lower vertical
Plate（1402）Semicircle orifice surround and roller carrier shaft（3）Corresponding through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911542.2A CN108723689A (en) | 2018-08-10 | 2018-08-10 | A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911542.2A CN108723689A (en) | 2018-08-10 | 2018-08-10 | A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108723689A true CN108723689A (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810911542.2A Pending CN108723689A (en) | 2018-08-10 | 2018-08-10 | A kind of heat exchanger tube clamping method and device for heat exchanger tube butt welding |
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| Country | Link |
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| CN (1) | CN108723689A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115091532A (en) * | 2022-07-28 | 2022-09-23 | 苏州安洁科技股份有限公司 | Pressing shaft for local pressing |
| CN115625641A (en) * | 2022-11-17 | 2023-01-20 | 山东宏盛机械装备有限公司 | Outer wall shot blasting cleaning device for flange pipe |
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| CN115625641A (en) * | 2022-11-17 | 2023-01-20 | 山东宏盛机械装备有限公司 | Outer wall shot blasting cleaning device for flange pipe |
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Application publication date: 20181102 |
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