CN204381746U - A kind of conical pipe joint close welding hold down gag - Google Patents
A kind of conical pipe joint close welding hold down gag Download PDFInfo
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- CN204381746U CN204381746U CN201420869719.4U CN201420869719U CN204381746U CN 204381746 U CN204381746 U CN 204381746U CN 201420869719 U CN201420869719 U CN 201420869719U CN 204381746 U CN204381746 U CN 204381746U
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Abstract
The utility model belongs to technical field of welding equipment, in order to solve conical pipe carry out joint close welding time, hold down gag cannot make pressuring action end that the problem of trickle deflection occurs in the process of exerting pressure to conical pipe, the utility model provides a kind of conical pipe joint close welding hold down gag, comprise to the lateral pressing structure of shoe of conical pipe two side pressure and the hydraulic press to conical pipe top pressure, described lateral pressing structure of shoe comprises side pressure end and the side pressure cylinder by piston and side press bond, described side pressure end comprises planker seat, effect end, be fixed on the fixed axis on planker seat, the swing arm of one end connection function end and micro-adjusting mechanism, described micro-adjusting mechanism comprises the pressure-bearing rod be arranged on planker seat, pressure-bearing cover and packing ring, it is the fine setting end entangling pressure-bearing rod that pressure-bearing overlaps one end, the other end holds the other end be connected to be rotationally connected with swing arm relative to effect, described pressure-bearing rod one end props up fine setting end by packing ring, the other end is provided with the fine-tuning nut being propped up fine setting end by packing ring.
Description
Technical field
The utility model belongs to technical field of welding equipment, relates to a kind of conical pipe joint close welding hold down gag.
Background technology
Along with the continuous construction of extra-high voltage grid, increasing extra-high voltage steel tube tower and electric substation's structure stent applications are in transmission line of electricity, and due to its special version, in steel tube tower and electric substation's structure support, the processing capacity of ERW is all very huge, there is the ERW of considerable part tapered, owing to welding characteristic in joint close internal welding machine, the opening of steel pipe joint close is in 6 o'clock direction, and with plane-parallel, therefore when joint close internal welding machine carries out joint close welding to conical pipe, conical pipe axial location is changing always, thus make the angle of the pressuring action end compressing conical pipe to be welded along with the carrying out of conical pipe joint close welding, certain deflection can occur.And at present, the vibrational power flow of pressuring action end is generally only applicable to the extruding of cylindrical steel pipes with straight, for the extruding of conical pipe, direct for conical pipe plane placement requires that the angle of pressuring action end can accept angular deflection to a certain degree owing to can be caused the continuous change of conical pipe axis position when joint close welds, therefore use existing pressuring action end the requirement of conical pipe according to its axis and plane-parallel can only be placed, thus joint close welding cannot be carried out by the conical steel pipe longer to length.
Utility model content
When technical problem to be solved in the utility model is that conical steel pipe carries out joint close welding, because hold down gag cannot make pressuring action end that trickle deflection occurs in the process of exerting pressure to conical pipe, make pressuring action end can adapt to the problem of the trickle angle change that conical pipe surface occurs along with the propelling of welding, and provide a kind of conical pipe joint close to weld hold down gag for this problem.
Conical pipe joint close welding hold down gag described in the utility model, comprise to the lateral pressing structure of shoe of conical pipe two side pressure and the hydraulic press to conical pipe top pressure, described hydraulic press comprises pedestal, entablature, connect the column of pedestal and entablature, the upper pressure crossbeam slided between pedestal and entablature by column and by piston driving being pressed the upper cylinder pressure of crossbeam, described lateral pressing structure of shoe comprises side pressure end and the side pressure cylinder by piston and side press bond, it is characterized in that described side pressure end comprises planker seat, effect end, be fixed on the fixed axis on planker seat, the swing arm of one end connection function end and micro-adjusting mechanism, described micro-adjusting mechanism comprises the pressure-bearing rod be arranged on planker seat, pressure-bearing cover and packing ring, it is the fine setting end entangling pressure-bearing rod that pressure-bearing overlaps one end, the other end holds the other end be connected to be rotationally connected with swing arm relative to effect, described pressure-bearing rod one end props up fine setting end by packing ring, the other end is provided with the fine-tuning nut being propped up fine setting end by packing ring.
When conical pipe is along with the carrying out of welding, trickle angle can occur the angle of the face that conical pipe is exerted pressure by effect end and horizontal plane changes, thus the direction of exerting pressure making effect end not with conical pipe compression face completely at an angle of 90, and conical pipe joint close welding hold down gag described in the utility model realizes carrying out adaptability fine setting to the angle of effect side pressure on conical pipe surface by micro-adjusting mechanism, once there is trickle angle change in conical pipe compression face, the reaction force of conical pipe compression face to effect end will produce and be different from the component perpendicular with conical pipe compression face, thus make effect end around fixed axis, trickle deflection occur by swing arm, one end that the pressure-bearing cover that final and swing arm is rotationally connected entangles pressure-bearing rod compresses to packing ring, packing ring described in the utility model has less elasticity, trickle elastic deformation can be there is under larger stress condition, thus the object of automatically carrying out adaptable angle adjustment along with the trickle angle change of conical pipe pressure surface is held in the effect that completes, the impetus that this technique effect promotes conical pipe joint close welding quality is quite obvious, before the utility model, the effect end on conical pipe surface of applying pressure to cannot carry out the trickle adjustment of angle, thus easily leave impression on conical pipe surface, in order to avoid this technological deficiency, technical staff can improve the making precision of conical pipe, to reduce the probability that the slight change of conical pipe compression face angle occurs when joint close welds conical pipe, or the requirement of conical pipe according to its axis and plane-parallel is placed, thus joint close welding cannot be carried out by the conical steel pipe longer to length.Technical scheme described in the utility model significantly decreases conical pipe joint close and welds the difficulty of processing brought to technical staff, not high to the making required precision of conical pipe, after ensure that the welding of conical pipe joint close simultaneously, and the presentation quality on its surface.
On the basis of technique scheme, those skilled in the art can select suitable packing ring, thus can in the field of load of regulation, there is satisfactory deformation quantity, to guarantee to act on pressure that end exerts pressure to conical pipe after conical pipe compression face angle generation slight change, still remain unchanged.Packing ring can directly directly be replaced by those skilled in the art, and the mode that also multiple packing ring can be used to stack forms a spacer ring body, and the deformation quantity of whole spacer ring body and deformation field of load are corresponded to actual needs.
Obviously, to the unresponsive effect end of conical pipe compression face angle slight change, even if use micro-adjusting mechanism described in the utility model, still can not well play above-mentioned technique effect, therefore the utility model adds the sensitivity of effect end to the slight change of conical pipe compression face angle, carrying out oneself initiatively can adjust, effect end and conical pipe compression face are closely cooperated all the time, the running roller seat of effect end described in the utility model for being provided with roller set.Described roller set can be a single-row row, also can be the many rows of multiple row.
Significantly the change of conical pipe compression face angle generally can not occur in the process of same conical pipe joint close welding, generally occur in the joint close welding to different size conical pipe, side pressure end described in the utility model also comprises coarse adjustment mechanism, described coarse adjustment mechanism comprises the coarse adjustment seat be fixed on planker seat, the coarse adjustment screw rod be connected with pressure-bearing rod and the locking nut of locking coarse adjustment screw rod, and described coarse adjustment seat is provided with the tapped through hole matched with coarse adjustment screw rod.Because coarse adjustment screw rod is connected with pressure-bearing rod, as long as therefore rotate coarse adjustment screw rod, just can adjust coarse adjustment screw rod relative to the position on coarse adjustment seat, thus by driving pressure-bearing rod to move, reach the angle that regulating action end rotates along fixed axis.
As further preferred, described coarse adjustment screw rod is fixedly connected with pressure-bearing rod.
Or further, described coarse adjustment screw rod and pressure-bearing rod are structure as a whole.
The Adjustment precision of described coarse adjustment screw rod to effect end rotational angle is quite high, even if there is large rotation angle in the screwed hole of coarse adjustment screw rod on coarse adjustment seat, the movement on its axis of coarse adjustment screw rod is also small, such as coarse adjustment screw rod has less pitch usually, it is hereby ensured and effect end is adjusted to the right place along the anglec of rotation of fixed axis is disposable, and do not need because precision is poor completely, and cause the anglec of rotation of repeatedly corrective corrective action end.
For preventing the adjustable range of coarse adjustment screw rod excessive, pressure-bearing cover described in the utility model is connected by turning cylinder with swing arm, and described planker seat is provided with turning cylinder stopper slot, and described turning cylinder two ends are positioned at turning cylinder stopper slot.
The reaction force of conical pipe to effect end does not coincide with the piston direction of propulsion of side pressure cylinder, in order to keep out the reaction force of conical pipe to effect end, lateral pressing structure of shoe described in the utility model also comprises supporting seat, the fixed bit that described supporting seat is provided with fixation side cylinder pressure and the slide rail slided along side pressure cylinder piston direction of propulsion for side pressure end.The described reaction force acted on like this on effect end can part be acted on supporting seat by side pressure end.General, the chute or pulley that match with described slide rail can be set on planker seat.
Exert pressure in the technical foundation of accommodation in realization to conical pipe, the utility model also will solve another one technical problem, namely how to make different side pressure ends and upper pressure side to the original appearance (namely not occurring to deposit deformation devious with former conical by its shape in pressurized process) that can ensure conical pipe of exerting pressure of conical pipe, again can according to the requirement of conical pipe joint close welding, by the size Control of conical pipe bevel for welding width regulation scope within, thus for joint close weld quality make significant contribution.
The utility model finds, in the process that conical pipe is exerted pressure, the diverse location of site of action in conical pipe of exerting pressure will need the pressure of different size, suitable pressure is adopted respectively by the multiple positions at conical pipe, side can make conical pipe ensure when pressurized conical pipe original appearance, obviously for the pressurized position distributed relative to conical pipe axisymmetrical, identical pressure can be adopted, Given this, the utility model constructs a kind of hydraulic gear, this mechanism comprises proportional hydraulic valve, at least one doublet of described side pressure cylinder formation parallel with one another, described doublet passing ratio hydraulic valve is connected with upper cylinder pressure, when the quantity of described doublet is at least two, between different doublets, passing ratio hydraulic valve is connected in series.
The side pressure cylinder being arranged in same doublet ensures pressure conical pipe being applied to formed objects, and for upper cylinder pressure and other different doublets, side pressure cylinder and the exert pressure size of upper cylinder pressure to conical pipe pressurized position are different, therefore the utility model between doublet from upper cylinder pressure and between different doublets equal passing ratio hydraulic valve connect, and passing ratio hydraulic valve adjusts different doublet and upper cylinder pressure to the pressure proportional of exerting pressure of conical pipe.
The utility model also does one's utmost the automation promoting hydraulic gear operation, hydraulic gear has been set up to the hydraulic pump be communicated with upper cylinder pressure with doublet, the hydraulic pump control device be arranged on hydraulic pump, the side pressure detector be arranged on side pressure cylinder, the upper pressure detector be arranged on upper cylinder pressure further, has been arranged on proportional hydraulic valve control device on proportional hydraulic valve and control circuit, and described hydraulic pump control, side pressure detector, upper pressure detector and proportional hydraulic valve control device are all connected with control circuit.Control circuit can understand the force value of upper pressure and side pressure in real time by side pressure detector and upper pressure detector, if once find that the pressure conical pipe of upper pressure and side pressure certain bad deformation occurs and (namely cannot keep the original appearance of conical pipe conical by its shape, the compression of such as inequality proportion, cause the deviation that conical by its shape is certain), instruction can be sent by comparative example hydraulic valve controller timely, pressure and side pressure is made to maintain rational proportion, or start hydraulic pump, supercharging or decompression while that upper pressure and side pressure being carried out.
Occur except bad deformation except not making conical pipe, the final mass of conical pipe also at least relates to another key factor, namely could maintain in the scope of restriction the width of conical pipe bevel for welding, thus guarantee the quality of conical pipe being carried out to joint close welding, the video camera detecting conical pipe bevel for welding width size is set up in the utility model suggestion further to hold down gag, and is connected with control circuit by video camera.Video camera can be arranged on any orientation being convenient to observe bevel for welding, such as can be set directly on internal welding machine, the bevel for welding width data fed back by video camera, control circuit is according to its inside regulation and control algorithm, comparative example hydraulic valve controller, hydraulic pump control device can send instruction, thus adjust conical pipe bevel for welding width in time, and described bevel for welding width is maintained in the scope of restriction all the time, guarantee the joint close welding quality that conical pipe is final.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hold down gag of a kind of conical pipe joint close welding described in embodiment;
Fig. 2 is the structural representation of side pressure end described in embodiment;
Fig. 3 is the sectional view of side pressure end described in embodiment;
Fig. 4 is the plan structure schematic diagram of side pressure end described in embodiment;
Fig. 5 is the structural representation of micro-adjusting mechanism described in embodiment;
Fig. 6 is the structure diagram of hydraulic gear described in embodiment.
Detailed description of the invention
Embodiment
See Fig. 1-6, a kind of conical pipe joint close welding hold down gag (exerting pressure bottom conical pipe is completed by the conveying device chassis 7 of conical pipe), comprise two lateral pressing structure of shoes to conical pipe two side pressure, hydraulic press and hydraulic gear, described hydraulic press comprises pedestal 61, entablature 5, connect the column 3 of pedestal 61 and entablature 5, the upper pressure crossbeam 6 slided between pedestal and entablature 5 by column 3 and by piston driving being pressed the upper cylinder pressure 4 of crossbeam 6, upper pressure crossbeam 6 is provided with the upper pressure roller wheel seat 60 of exerting pressure to conical pipe top, row's running roller is provided with in upper pressure roller wheel seat 60.
Described lateral pressing structure of shoe comprises side pressure end, by the side pressure cylinder 2 of piston and side press bond and the supporting seat 1 that is fixed on pedestal 61, supporting seat 1 is provided with fixed bit and the slide rail 12 of fixation side cylinder pressure 2, side pressure end comprises planker seat 11, side pressure running roller seat 13, be fixed on the fixed axis 21 on planker seat 11, the swing arm 20 of one end connection side pressure roller wheel seat 13, coarse adjustment mechanism and micro-adjusting mechanism, planker seat 11 is provided with the chute matched with described slide rail 12, slide in the direction that such planker seat 11 just can drive the miscellaneous part of side pressure end to advance along slide rail 12 at side pressure cylinder 2 piston.
Described coarse adjustment mechanism comprises the coarse adjustment seat be fixedly mounted on planker seat 11, coarse adjustment screw rod 8 and locking nut 9, and micro-adjusting mechanism comprises pressure-bearing rod 52, pressure-bearing cover 23 and spherical washer (30-33), it is the fine setting end 50 entangling pressure-bearing rod 52 that pressure-bearing overlaps 23 one end, the other end is rotationally connected by turning cylinder 22 relative to the other end be connected with side pressure running roller seat 13 with swing arm 20, described pressure-bearing rod 52 one end props up fine setting end 50 by spheric washer (30 and 31), and the other end is provided with the fine-tuning nut 51 being propped up fine setting end 50 by spheric washer (32 and 33).
Coarse adjustment screw rod 8 and pressure-bearing rod are structure as a whole in the present embodiment, the spheric washer one that the present embodiment provides has four, wherein two prop up the side of the fine setting end of pressure-bearing cover 23, two other then props up the opposite side of described fine setting end 50 by fine-tuning nut, the motion of such pressure-bearing cover 23 is just restricted, but and on-fixed is dead, but small movement can be carried out between two spheric washer groups (an obvious spheric washer group has two spheric washers), fine-tuning nut 51 can regulate the minute movement scope that pressure-bearing overlaps 23, thus reduce or expand the moving range of pressure-bearing cover 23 according to actual needs further.
Because pressure-bearing cover 23 is rotationally connected by turning cylinder 22 relative to the other end be connected with side pressure running roller seat 13 with swing arm 20, therefore pressure-bearing cover 23 can make side pressure running roller seat 13 that trickle angular deflection occur by swing arm 20, spheric washer is enough to enable the angular deflection of side pressure running roller seat 13 adapt to the slight change of conical pipe compression face angle, and do not affect side pressure running roller seat 13 by row's roller set to the pressure size of conical pipe compression face, can not have an impact to the width of conical pipe bevel for welding because of the change of conical pipe compression face angle, what ensured that conical pipe joint close welds carries out smoothly.
If the present embodiment wants offside pressure roller wheel seat 13 to carry out the adjustment of more large deflection angle degree, then depend on coarse adjustment mechanism, first the deflection angle of side pressure running roller seat 13 is determined, then coarse adjustment screw rod 8 is screwed in tapped through hole supporting with it in coarse adjustment seat, when the deflection angle of side pressure running roller seat 13 reach real work need time, then to revolve as locking nut 8 locks coarse adjustment screw rod 13.For preventing the adjustable range of coarse adjustment screw rod 13 excessive, the present embodiment is also provided with turning cylinder stopper slot 24 on planker seat 11, and the two ends of turning cylinder 22 are positioned at described turning cylinder stopper slot 24.
Hydraulic gear comprises proportional hydraulic valve 43, hydraulic fluid tank 40, hydraulic pump 41, is arranged on hydraulic pump control device on hydraulic pump, the side pressure detector be arranged on side pressure cylinder 2, the upper pressure detector be arranged on cylinder pressure 4, proportional hydraulic valve control device, control circuit and the video camera be arranged on proportional hydraulic valve 43, and described hydraulic pump control device, side pressure detector, video camera, upper pressure detector and proportional hydraulic valve control device are all connected with control circuit.Described two side pressure cylinders 2 formation parallel with one another doublet, and passing ratio hydraulic valve 43 is connected with upper cylinder pressure 4, hydraulic fluid tank 40, hydraulic pump 41, upper cylinder pressure 4, proportional hydraulic valve 43 and doublet form a complete series loop, can ensure that the pressure that two side pressure cylinders 2 provide is equal like this, and the pressure of upper cylinder pressure 4 and the pressure of side pressure cylinder 2 distinct, those skilled in the art can work out hydraulic pressure algorithm, make control circuit better control side pressure bar 2, upper cylinder pressure 4 and proportional hydraulic cylinder 43.
Claims (8)
1. a conical pipe joint close welding hold down gag, comprise to the lateral pressing structure of shoe of conical pipe two side pressure and the hydraulic press to conical pipe top pressure, described hydraulic press comprises pedestal, entablature, connect the column of pedestal and entablature, the upper pressure crossbeam slided between pedestal and entablature by column and by piston driving being pressed the upper cylinder pressure of crossbeam, described lateral pressing structure of shoe comprises side pressure end and the side pressure cylinder by piston and side press bond, it is characterized in that described side pressure end comprises planker seat, effect end, be fixed on the fixed axis on planker seat, the swing arm of one end connection function end and micro-adjusting mechanism, described micro-adjusting mechanism comprises the pressure-bearing rod be arranged on planker seat, pressure-bearing cover and packing ring, it is the fine setting end entangling pressure-bearing rod that pressure-bearing overlaps one end, the other end holds the other end be connected to be rotationally connected with swing arm relative to effect, described pressure-bearing rod one end props up fine setting end by packing ring, the other end is provided with the fine-tuning nut being propped up fine setting end by packing ring.
2. a kind of conical pipe joint close welding hold down gag according to claim 1, it is characterized in that described side pressure end also comprises coarse adjustment mechanism, described coarse adjustment mechanism comprises the coarse adjustment seat be fixed on planker seat, the coarse adjustment screw rod be connected with pressure-bearing rod and the locking nut of locking coarse adjustment screw rod, and described coarse adjustment seat is provided with the tapped through hole matched with coarse adjustment screw rod.
3. a kind of conical pipe joint close welding hold down gag according to claim 1 and 2, it is characterized in that described lateral pressing structure of shoe also comprises supporting seat, the fixed bit that described supporting seat is provided with fixation side cylinder pressure and the slide rail slided along side pressure cylinder piston direction of propulsion for side pressure end.
4. a kind of conical pipe joint close welding hold down gag according to claim 1 and 2, is characterized in that the running roller seat of described effect end for being provided with roller set.
5. a kind of conical pipe joint close welding hold down gag according to claim 1, it is characterized in that described pressure-bearing cover is connected by turning cylinder with swing arm, described planker seat is provided with turning cylinder stopper slot, and described turning cylinder two ends are positioned at turning cylinder stopper slot.
6. a kind of conical pipe joint close welding hold down gag according to claim 1, it is characterized in that described hold down gag also comprises hydraulic gear, this mechanism comprises proportional hydraulic valve, at least one doublet of described side pressure cylinder formation parallel with one another, described doublet passing ratio hydraulic valve is connected with upper cylinder pressure, when the quantity of described doublet is at least two, between different doublets, passing ratio hydraulic valve is connected in series.
7. a kind of conical pipe joint close welding hold down gag according to claim 6, it is characterized in that described hydraulic gear also comprise be communicated with upper cylinder pressure with doublet hydraulic pump, be arranged on hydraulic pump control device on hydraulic pump, the side pressure detector be arranged on side pressure cylinder, the upper pressure detector be arranged on upper cylinder pressure, be arranged on proportional hydraulic valve control device on proportional hydraulic valve and control circuit, described hydraulic pump control, side pressure detector, upper pressure detector and proportional hydraulic valve control device are all connected with control circuit.
8. a kind of conical pipe joint close welding hold down gag according to claim 7, it is characterized in that described hold down gag also comprises the video camera detecting conical pipe bevel for welding width size, described video camera is connected with control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869719.4U CN204381746U (en) | 2014-12-31 | 2014-12-31 | A kind of conical pipe joint close welding hold down gag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869719.4U CN204381746U (en) | 2014-12-31 | 2014-12-31 | A kind of conical pipe joint close welding hold down gag |
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| Publication Number | Publication Date |
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| CN204381746U true CN204381746U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420869719.4U Active CN204381746U (en) | 2014-12-31 | 2014-12-31 | A kind of conical pipe joint close welding hold down gag |
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| CN (1) | CN204381746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551505A (en) * | 2014-12-31 | 2015-04-29 | 浙江盛达铁塔有限公司 | Conical pipe stitch welding pressing device |
-
2014
- 2014-12-31 CN CN201420869719.4U patent/CN204381746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551505A (en) * | 2014-12-31 | 2015-04-29 | 浙江盛达铁塔有限公司 | Conical pipe stitch welding pressing device |
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