CN205798595U - A kind of steel tube head cutter sweep - Google Patents

Abstract

The utility model discloses a kind of steel tube head cutter sweep, steel tube head cutter sweep includes the water cutting head for realizing steel tube head cutting, water cutting head is correspondingly arranged in and is positioned above position to be cut, steel pipe two ends and water outlet direction is just arranged being positioned steel pipe along being positioned the radial direction of steel pipe, steel tube head cutter sweep also includes the high-pressure water jet generation system being connected with water cutting head, it is characterized in that, steel tube head cutter sweep is positioned at water cutting head top position and is additionally provided with for controlling the water cutting head pushing handle telescopic control mechanism that water cutting head moves up and down.This utility model has simple in construction, it is possible to dropping place when facilitating steel pipe to position, and ensure that again preferable cutting effect and stability, it is possible to increase the advantages such as the cutting machine scope of application.

Description

A kind of steel tube head cutter sweep

Technical field

This utility model relates to steel pipe finished product and the cutting equipment of pipe termination, specifically a kind of steel tube head cutting dress Put.

Background technology

The manufacturing process of steel pipe is numerous and diverse, and general steel pipe is usually steel pipe base after manufacturing, and two terminations of this steel pipe base lead to Demand that is the most relatively rough, that use for making the length of steel pipe base, termination smoothness, roughness etc. reach, it is the most right to need Steel pipe base carries out a series of crop, back-end crop or carry out cutting process by Len req.So that steel pipe reaches length requirement accurately Reach the purpose with beneficially next procedure smooth, smooth, particularly finished product tubing opposite end head cut quality with end to require more High.

In prior art, the mode of the cutting of commonly used abrasive wheel cutting machine or sawing is by the most required for tediously long steel pipe cutting Length, the shortcoming of this kind of cutting mode is: the steel pipe base end face of cutting is with cut quality out-of-flatness, and roughness is big, hairiness Thorn, the quality problems such as sharp-pointed, and because producing in cutting, high heat is rubescent turns blue, and easily affects tubing termination quality, in order to process The steel pipe base cut quality out-of-flatness that the mode of abrasive wheel cutting machine cutting or sawing is cut, the matter such as roughness is big, jagged, sharp-pointed Amount problem typically also needs to its end face is implemented subsequent operation.Existing way is, to steel pipe otch outer wall burr at A seating sand Wheel chamfering goes flash removed, steel pipe notch inner wall to remove flash removed, is to be inserted in a rotating shaft by steel pipe base manually by pipe, opens Cutter rotates and feed, carries out chamfered at inwall, pulls up steel pipe base and tube head the most again, turn from above-mentioned rotating shaft Penstock installation direction, repeats aforesaid operations, and the tube head implementing the steel pipe base other end processes, this method labor intensity Height, and go flash removed to make port tube wall thinning, sharpening, easily cause worker injuries, production efficiency is low.And can not Realize steel pipe and reach length requirement and two end purposes processed with beneficially next procedure smooth, smooth accurately, particularly Termination cut quality is required higher by finished product.Some finished product tube walls only have 0.5mm thickness, use abrasive wheel cutting machine cutting or sawing Mode is obviously more difficult to reach smooth, smooth, attractive in appearance prescription.Another use abrasive wheel cutting machine cutting or the mode of sawing, sand Wheel, saw blade gap is about 4 mm, and spillage of material is big, causes a large amount of material to damage, the economizing economy essence advocated with the current whole society God runs counter to；Its two, cutting efficiency is low, still as a example by the steel pipe of a diameter of 30 mm, needed for often cutting an orthopedic pipe Time be about 60 seconds the most longer, thus affect production efficiency；Its three, workshop is seriously polluted, because by sand Wheel, during saw blade is to steel pipe cutting, not only sand formation cuttings, sawdust splashes, and noise is big, thus affects the health of operating personnel ；Its four, emery wheel, sawblade-replacing are frequent, and not only impact is worked continuously, and emery wheel, saw blade consumption are big, cause cutting cost to carry High.

In view of the defect of above-mentioned steel tube head cutting technique, applicant considers to devise the cutting of a kind of termination, steel pipe two ends Machine, including frame, its feature is, frame is provided with one for realize steel pipe to be cut location steel pipe positioner and Two steel tube head cutter sweeps, steel tube head cutter sweep includes the water cutting head for realizing steel tube head cutting, and water is cut Cut head to be correspondingly arranged in and be positioned position to be cut, steel pipe two ends and water outlet direction along being positioned the radial direction of steel pipe just to being positioned Steel pipe is arranged, and steel tube head cutter sweep also includes the high-pressure water jet generation system being connected with water cutting head.So, this is used Equipment can realize steel tube head cutting by the mode of Water Cutting, realizes cutting and be dependent on water cutting head injection during due to cutting High-velocity flow, it is while cutting off steel tube head, due to the deformation dispersibility of current self so that it is can be produced by cutting part Raw burr washes away, therefore drastically increases cut quality.Use water jet cutting also to have cutting efficiency simultaneously, pollute low Etc. advantage, the most indirectly reduce cutting cost.

But wherein how steel tube head cutter sweep concrete structure is arranged, dropping place when steel pipe can be facilitated to position, again Ensure that preferable cutting effect and stability, become the problem having considered solution.

Utility model content

For above-mentioned the deficiencies in the prior art, technical problem to be solved in the utility model is: how to provide a kind of knot Structure is simple, it is possible to dropping place when facilitating steel pipe to position, and ensure that again the steel tube head of preferable cutting effect and stability is cut Cut device.

In order to solve above-mentioned technical problem, this utility model have employed following technical scheme:

A kind of steel tube head cutter sweep, steel tube head cutter sweep includes the Water Cutting for realizing steel tube head cutting Head, water cutting head is correspondingly arranged in and is positioned above position to be cut, steel pipe two ends and water outlet direction is along being positioned the radial direction of steel pipe Just to being positioned steel pipe setting, steel tube head cutter sweep also includes the high-pressure water jet generation system being connected with water cutting head, It is characterized in that, steel tube head cutter sweep is positioned at water cutting head top position and is additionally provided with for controlling water cutting head upper and lower The water cutting head pushing handle telescopic control mechanism of motion.

So, water cutting head can be controlled when not cutting and upwards retract, have influence on falling into of steel pipe to avoid interference with, cut Can extend downwardly from when cutting near steel tube surface position, it is ensured that cutting effect and stability.

As optimization, described water cutting head pushing handle telescopic control mechanism includes a water cutting head control fluid telescoping cylinder, water The telescopic arm of cutting head control fluid telescoping cylinder is down-set and fixes connection with water cutting head.

So there is simple in construction, the advantage such as quick that is reliably quick on the draw easy to control.

Further, steel tube head cutter sweep is positioned at water cutting head top position to be additionally provided with for controlling Water Cutting Head is along being positioned the water cutting head rotation control mechanism that steel pipe circumferentially rotates.So, when cutting relatively thin steel pipe, in order to prevent Water jet is through still having large energy after the tube wall of steel pipe upper end and then impacting lower section tube wall and cause erosion to affect final matter Amount, can lean on water cutting head rotation control mechanism to control steel pipe deflection certain angle and retread to cutting so that it is non-cleavage Put the impact of current after can avoiding cutting, and then better ensure that final cut quality, drastically increase this device and be suitable for Scope.

As optimization, water cutting head rotation control mechanism includes one for installing water cutting head control fluid telescoping cylinder With the installing plate of water cutting head, in the middle part of installing plate, it is installed in rotation on machine by one with the rotating shaft being positioned steel pipe axially in parallel On frame, water cutting head rotation control mechanism also includes a rotation fluid telescoping cylinder being arranged on installing plate side, rotates and uses Fluid telescoping cylinder is fixed in frame and its telescopic arm front end edge deviation rotor shaft direction is hinged and connected on installing plate side.This The gravity of sample, installing plate and its upper member bears by rotating shaft, and rotation fluid telescoping cylinder only need to provide less torque Drive realizes Spin Control, has Stability Analysis of Structures and controls the advantages such as reliable.

In sum, this utility model has simple in construction, it is possible to dropping place when facilitating steel pipe to position, and ensure that again relatively Good cutting effect and stability, it is possible to increase the advantages such as the cutting machine scope of application.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of steel pipe two ends end cutting machine that have employed this utility model structure.

Fig. 2 is the side view of independent steel pipe positioner part-structure in Fig. 1.

Detailed description of the invention

Below in conjunction with a kind of steel pipe two ends end cutting machine that have employed this utility model structure and accompanying drawing thereof to this practicality Novel it is described in further detail.

When being embodied as: as depicted in figs. 1 and 2, a kind of steel pipe two ends end cutting machine, including frame 1, it is arranged on frame Feeding part structure, cut portion structure and the output section structure on 1 and being sequentially connected successively, wherein, described cut portion Structure include one for realize steel pipe to be cut location steel pipe positioner and two steel tube head cutter sweeps, steel pipe is fixed The discharge end linking of device side, position and feeding part structure, the feed end linking of opposite side and output section structure, steel pipe end Head cutter sweep includes the water cutting head 2 for realizing steel tube head cutting, and water cutting head 2 is positioned at that to be positioned steel pipe two ends to be cut Cutting the top at position and water outlet direction and just arrange being positioned steel pipe along being positioned the radial direction of steel pipe, steel tube head cutter sweep is also Including the high-pressure water jet generation system 3 being connected with water cutting head.

So, use this equipment can realize steel tube head cutting by the mode of Water Cutting, during due to cutting, realize cutting Being dependent on the high-velocity flow of water cutting head injection, it is while cutting off steel tube head, due to the deformation dispersibility of current self, Can be washed away by the burr that cutting part produces, therefore drastically increase cut quality, water cutting head is positioned on steel pipe Side and water outlet direction are just arranged being positioned steel pipe along being positioned the radial direction of steel pipe, the carrying out that can conveniently cut and convenient cutting Water Sproading circulates.Use water jet cutting also to have cutting efficiency simultaneously, pollute the advantages such as low, the most indirectly reduce and cut into This.

Wherein, described feeding part structure includes the feed conveyor belt 4 that a horizontal annular is arranged, in feed conveyor belt 4 Circle two ends connect by two charging idler roller tensionings, one of them charging idler roller and charging motor-driven, feeding part structure Also including a horizontally disposed feeding-passage 5, feed conveyor belt 4 is positioned at feeding-passage 5 intracavity bottom, in feed conveyor belt 4 Apparent height is straight less than two times of steel pipes to be cut more than diameter of steel tube to be cut to feeding-passage 5 inner chamber upper level distance Footpath, feeding-passage 5 width is more than steel pipe length to be cut, and feeding-passage 5 feed end has set up loading hopper 6, and charging is logical Road 5 discharge end is connected in top position, steel pipe positioner side.

So, during charging, steel tube stacking is entered in loading hopper, rolls down to feed on transmission band by gravity, then lean on into Material conveyer belt operating drives and feeds successively, and funnel is convenient disposably puts into many steel pipes, and then dependence feed conveyor belt can be real Existing steel pipe feed control one by one, ensures to realize feeding successively by feeding-passage simultaneously, thus ensure charging automatization and Order, improves loading efficiency.

Wherein, described feeding part structure also includes stock stop, and stock stop includes a vertically arranged striker plate 7 With a backgauge fluid telescoping cylinder 8, backgauge fluid telescoping cylinder 8 telescopic arm is connected with striker plate 7 and makes the striker plate can Feeding-passage discharge end anterior position is blocked with the flexible of backgauge fluid telescoping cylinder telescopic arm.

During as such, it is desirable to steel pipe is fed in cut portion structure, controls striker plate and retract, control feed conveyor belt simultaneously The distance of a piece steel pipe of operating, during before driving, square steel tube falls to the steel pipe positioner of cut portion structure, then stop into Material conveyer belt controls striker plate simultaneously and stretches out and block feeding-passage discharge end, it is to avoid rear square steel tube produces at inertia and deadweight Fall in cut portion structure under component effect, it is ensured that an once piece steel pipe of cutting, it is ensured that cutting reliability.

Wherein, backgauge fluid telescoping cylinder 8 is fixedly mounted on feeding-passage shell lower surface near discharge end position, backgauge Telescopic arm with fluid telescoping cylinder 8 is down-set and is fixedly connected on striker plate 7 times by an adaptor and transverse connecting rod Side, so can preferably save installing space so that overall structure is compacter.Further, striker plate 7 side position can Slide up and down to spacing being arranged in frame in corresponding vertically arranged stopper slot；So, one is to play guiding by stopper slot to make With, facilitate striker plate vertically to move up and down, two is the inertial impact force bearing steel pipe by stopper slot, it is to avoid striker plate is by impact cutting Bad.Further, also having one piece of rear end and the linking of feed conveyor belt port of export level on front side of striker plate, front end is the most right The oblique rebound of steel pipe positioner, the so convenient steel pipe guiding feeding part discharge end tumbles into steel pipe positioner In, it is to avoid clash into and damage steel pipe positioner, improve stationarity.Further, described feed conveyor belt 4 inner ring is positioned at two Position between charging idler roller has also been horizontally spaced about load roller 9 in the middle of several chargings, and in the middle of charging, load roller 9 is along entering Material conveyer belt width arranges and two ends are installed in rotation on feeding-passage, load roller upper surface and charging in the middle of charging Lower surface contact load on conveyer belt.So can preferably bear the steel pipe gravity of feed conveyor belt upper surface, it is to avoid enter Expect conveyer belt stress excessive and deformed damaged.The most preferably select be, described charging in the middle of load roller uniform intervals arrange and In the middle of adjacent charging, load roll spacing is from consistent with outer diameter of steel pipes.So making, steel pipe enters into feed conveyor belt and is positioned at charging When the steel pipe of passage discharge end is blocked by stock stop, each steel pipe drops between two middle load rollers of adjacent charging just Position；Before and after the most each steel pipe, both sides are just supported by load roller in the middle of two chargings and make to hold in the middle of two adjacent chargings Feed conveyor belt pressurized between power roller produces slight deformation, and then steel pipe is produced certain contact limit effect, Ke Yihuan Solve feeding-passage feed end pile up the pressure accumulated discharge end that is transferred to of steel pipe form the thrust to stock stop, improve whole enter The stationarity of material process.

Wherein, described output section structure includes the discharge belt 10 that a horizontal annular is arranged, discharge belt 10 Inner ring two ends lean on two discharging idler roller tensionings, one of them discharging idler roller and charging motor-driven to connect, and output section is tied Structure also includes a horizontally disposed tapping channel 11, and discharge belt 10 is positioned at tapping channel 11 intracavity bottom, discharging transmission 10 upper level are carried to lead to less than two times of diameter of steel tube, discharging to tapping channel inner chamber upper level distance more than diameter of steel tube Road 11 width is more than steel pipe length after cutting, and tapping channel feed end is provided with blanking channel 12, blanking channel 12 straight up Upper port is right against and is connected below steel pipe positioner, and tapping channel discharge end is discharging opening.

So, drive discharging by discharging transmission band, facilitate discharging control, steel pipe heap can be avoided by the tapping channel arranged Long-pending, it is achieved discharging of queuing up successively, improve discharging order, after convenience, on-carriage etc. operate.

Wherein, described blanking channel 12 inwall is provided with cushioning fender 13, and cushioning fender 13 one end is hinged on rotationally On the sidewall of blanking channel side, cushioning fender 13 other end is arranged obliquely, cushioning fender 13 downside and installation cushioning fender This side sidewall of blanking channel between be provided with buffer spring.

As such, it is possible to guide steel pipe to fall in discharge belt by cushioning fender buffering, reduce steel pipe and drop to discharging The impact of conveyer belt, improves discharging stability, extension fixture life-span.

Wherein, cushioning fender 13 lower end position has an arcuate structure upwarped, arcuate structure radian and steel pipe Cylindrical is consistent.So, after steel pipe falls down, release cushioning fender can roll down to arcuate structure buffers, preferably drive slow Rush baffle plate lower end and rotate down the power of letting out, and slow down the steel pipe shock to blanking channel sidewall, preferably improve blanking stability.Enter One step ground, in described discharge belt inner ring, the position between two discharging idler rollers has also been horizontally spaced about several Load roller 14 in the middle of discharging, in the middle of discharging, load roller 14 is arranged along discharge belt width and two ends are installed in rotation on On tapping channel, in the middle of discharging, load roller 14 upper surface contacts load with lower surface on discharge belt.So can be more preferable Bear the steel pipe gravity of discharge belt upper surface, it is to avoid discharge belt stress is excessive and deformed damaged.The most preferably Selection is, in the middle of described discharging, load roller uniform intervals is arranged and the middle load roll spacing of adjacent discharging is from consistent with outer diameter of steel pipes. So making, during steel pipe enters into discharge belt top discharge, each steel pipe rolls in the middle of two adjacent dischargings just Position between load roller；Before and after the most each steel pipe both sides just supported by load rollers in the middle of two dischargings make two adjacent In the middle of discharging, the discharge belt pressurized between load roller produces slight deformation, and then steel pipe is produced certain spacing effect of contact Really, the stationarity of whole discharging process can preferably be improved.

Wherein, described steel pipe positioner includes fixing active backing roll 15 that level of relative arranges and movable passive bearing Roller 16, fixing actively backing roll 15 is installed in rotation in fixing actively backing roll mounting seat, and fixing actively backing roll is installed Seat is fixedly installed in frame 1, and fixing actively backing roll 15 and a rack-mounted cutting rotary power motor 17 pass Being dynamically connected and can rotate by cutting rotary power driven by motor, described movable passive bearing roller 16 is installed in rotation on activity In passive bearing roller mounting seat 18, between movable passive bearing roller mounting seat 18 and frame 1, it is additionally provided with translation controlling organization, flat Dynamic controlling organization is used for controlling movable passive bearing roller mounting seat and moves horizontally, and passive bearing roller mounting seat is moved horizontally to and consolidates During fixed actively backing roll mounting seat closest approach, between fixing actively backing roll and movable passive bearing roller, opposite side upper surface is formed The steel pipe cutting work station of location is fallen into for steel pipe.

So, movable passive bearing roller drives by translation controlling organization that to extend out to and fix active backing roll mounting seat nearest The steel pipe that during point, between fixing actively backing roll and movable passive bearing roller, the formation of opposite side upper surface falls into location for steel pipe is cut Cut station, now can fall into location for steel pipe, then during steel pipe cutting, rely on cutting rotary power driven by motor fixing actively Backing roll rotates, and then drives steel pipe rotary thereon, it is achieved the cutting in the whole circumference of steel pipe, and steel tube head cutting is complete After, translation controlling organization drive activity passive bearing roller is retracted, and steel pipe drops in the output section structure of lower section.So, Conveniently realize the blanking cut and after cutting that supports of steel pipe, use simultaneously and control the steel pipe rotary mode of a week and water Cutting head coordinates the cutting realized steel tube head, has cutting reliable, the feature that cut quality is high.

Wherein, movable passive bearing roller mounting seat 18 lower end is slidably fit into a guide rail being horizontally placed on frame On 19, described translation controlling organization includes a movable passive bearing roller control fluid telescoping cylinder 20, and described activity is passively propped up The telescopic arm of runner control fluid telescoping cylinder 20 is connected with movable passive bearing roller mounting seat 18 and to be used for control the most present Moving horizontally on guide rail.

So, the convenient horizontal Sliding Control realized movable passive bearing roller mounting seat, there is simple in construction, control can The advantage such as lean on.

Wherein, movable passive bearing roller control fluid telescoping cylinder 20 is installed on guide rail lower position and its telescopic arm passes through Adaptor is connected with movable passive bearing roller mounting seat 18 with connecting rod, so can preferably save space so that it is structure is tight Gather.Further, guide rail is fixedly installed baffle plate straight up near fixing actively backing roll mounting seat side, the most permissible Movable passive bearing roller mounting seat is moved horizontally extreme position and preferably carries out spacing.

Wherein, described steel pipe positioner also includes that end part aligning mechanism, described end part aligning mechanism include that one is positioned at Being positioned the alignment fixed dam 21 of steel pipe length direction one end in steel pipe cutting work station, alignment is installed solid with fixed dam 21 It is scheduled in frame, also includes one to be positioned in steel pipe cutting work station being positioned the alignment active catch of the steel pipe length direction other end Plate 22, alignment movable panel 22 deviates from steel pipe cutting work station side and an alignment thrust fluid being fixed on frame stretches Cylinder 23 is connected.

So, steel pipe drops in steel pipe cutting work station behind location before cut, and alignment thrust fluid can be leaned on to stretch The telescopic arm of contracting cylinder stretches out promotion steel pipe makes its other end be against on alignment fixed dam, it is achieved the location of axial location is right Together, it is ensured that steel pipe cutting position is precisely reliable, improves end cut quality.

Wherein, steel tube head cutter sweep is positioned at water cutting head top position to be additionally provided with for controlling water cutting head The water cutting head pushing handle telescopic control mechanism of lower motion.

So, water cutting head can be controlled when not cutting and upwards retract, have influence on falling into of steel pipe to avoid interference with, cut Can extend downwardly from when cutting near steel tube surface position, it is ensured that cutting effect and stability.

Wherein, described water cutting head pushing handle telescopic control mechanism includes a water cutting head control fluid telescoping cylinder 24, and water is cut Cut that the telescopic arm of head control fluid telescoping cylinder 24 is down-set and and water cutting head is fixing connects.

So there is simple in construction, the advantage such as quick that is reliably quick on the draw easy to control.

Wherein, steel tube head cutter sweep is positioned at water cutting head top position to be additionally provided with for controlling water cutting head edge It is positioned the water cutting head rotation control mechanism that steel pipe circumferentially rotates.So, when cutting relatively thin steel pipe, in order to prevent water-jet Still below having large energy after flowing through steel pipe upper end tube wall and then impacting, tube wall causes erosion to affect final mass, can To retread to cutting by water cutting head rotation control mechanism control steel pipe deflection certain angle so that it is non-cutting position can The impact of current after avoiding cutting, and then better ensure that final cut quality, drastically increase this device scope of application.

Wherein, water cutting head rotation control mechanism includes one for installing water cutting head control fluid telescoping cylinder and water The installing plate 25 of cutting head, is installed in rotation on machine by one with the rotating shaft being positioned steel pipe axially in parallel in the middle part of installing plate 25 On frame, water cutting head rotation control mechanism also includes a rotation fluid telescoping cylinder 26 being arranged on installing plate side, rotates It is fixed in frame with fluid telescoping cylinder 26 and its telescopic arm front end edge deviation rotor shaft direction is hinged and connected at installing plate 25 side On.So, the gravity of installing plate and its upper member bears by rotating shaft, and rotation fluid telescoping cylinder only need to provide less torque Can drive and realize Spin Control, there is Stability Analysis of Structures and control the advantages such as reliable.

When being embodied as, it is also possible to be correspondingly arranged respectively for detecting in steel pipe in the frame of steel pipe cutting work station adnexa Portion's steel pipe inductive probe and be cut the termination inductive probe of termination for detecting steel pipe, the former and backgauge with fluid telescoping cylinder with And charging motor is connected and is used for detecting that steel pipe cuts away backward control and feeds, moving in the latter and steel tube head cutter sweep Power element is connected and is used for controlling the start and stop of cutting, improves automatic controlling level.It addition, a control can also be arranged when implementing Center 27 processed, is all connected the dynamical element in various piece with control centre 27, and control is conveniently better achieved.

Therefore equipment of the present utility model, Water Cutting principle is used for steel pipe and cuts and realize automatic steel tube cutting, can be notable Improve cutting efficiency and the cutting matter of steel pipe, improve working environment, there is saving material and avoid cutter to be lost, reducing The labor intensity of workman, improves the safety of work.In effectively solving precision tube finished product and producing, steel billet cuts each end The cut quality out-of-flatness of head, the quality problems such as roughness is big, jagged, sharp-pointed, use can be widely popularized in relevant industries.

Claims (4)

1. a steel tube head cutter sweep, steel tube head cutter sweep includes the Water Cutting for realizing steel tube head cutting Head, water cutting head is correspondingly arranged in and is positioned above position to be cut, steel pipe two ends and water outlet direction is along being positioned the radial direction of steel pipe Just to being positioned steel pipe setting, steel tube head cutter sweep also includes the high-pressure water jet generation system being connected with water cutting head, It is characterized in that, steel tube head cutter sweep is positioned at water cutting head top position and is additionally provided with for controlling water cutting head upper and lower The water cutting head pushing handle telescopic control mechanism of motion.

2. steel tube head cutter sweep as claimed in claim 1, it is characterised in that described water cutting head pushing handle telescopic control mechanism bag Including a water cutting head control fluid telescoping cylinder, the telescopic arm of water cutting head control fluid telescoping cylinder is down-set and and water Cutting head is fixing to be connected.

3. steel tube head cutter sweep as claimed in claim 2, it is characterised in that be positioned at water in steel tube head cutter sweep and cut Cut a top position to be additionally provided with for controlling water cutting head along being positioned the water cutting head rotatrol that steel pipe circumferentially rotates Structure.

4. steel tube head cutter sweep as claimed in claim 3, it is characterised in that water cutting head rotation control mechanism includes Individual for installing water cutting head control fluid telescoping cylinder and the installing plate of water cutting head, lean on one in the middle part of installing plate and be positioned The axially in parallel rotating shaft of steel pipe is installed in rotation in frame, and water cutting head rotation control mechanism also includes that is arranged on a peace The rotation fluid telescoping cylinder of dress plate side, rotation fluid telescoping cylinder is fixed in frame and the deviation of its telescopic arm front end edge turns Direction of principal axis is hinged and connected on installing plate side.