CN203409349U

CN203409349U - Pipeline cutter

Info

Publication number: CN203409349U
Application number: CN201320385235.8U
Authority: CN
Inventors: 周启; 吴端; 方志平
Original assignee: Emerson Professional Tools Shanghai Co Ltd
Current assignee: Emerson Professional Tools Shanghai Co Ltd
Priority date: 2013-06-27
Filing date: 2013-06-27
Publication date: 2014-01-29
Anticipated expiration: 2023-06-27

Abstract

The utility model relates to a pipeline cutter which comprises a support base, a clamping device arranged on the support base, and a pipeline cutting tool assembly arranged on the support base, wherein a through hole for enabling a pipeline to be cut to pass through is formed in the support base, the clamping device is used for locating and clamping the pipeline to be cut, and the pipeline cutting tool assembly is set to be capable of moving relatively to the support base and comprises a cutting tool powered by a motor. The pipeline cutter further comprises a drive device used for driving the pipeline to be cut to rotate. According to the pipeline cutter provided by the utility model, the pipeline cutting precision can be improved, the space occupied by the cutter in a use process is reduced, and the hurt risk caused by the pipeline cutter to an operator is also reduced.

Description

Pipe cutter

Technical field

The utility model relates to a kind of pipe cutting instrument, more specifically, relates to a kind of pipe cutter that can improve cutting accuracy and improve cutting security.

Background technology

At present, for pipeline particularly the cutting operation major part of stainless steel pipes by abrasive cutoff saw, complete.Although abrasive cutoff saw cutting speed is than very fast, its cutting accuracy is lower, and spark during cutting is larger, and kerf quality is poor.Therefore, abrasive cutoff saw can only meet the less demanding pipe cutting of cutting accuracy, and can not meet the application of the occasion that cut quality has relatively high expectations.In addition, this abrasive cutoff saw needs operating personnel's manual operation, so its operating process is subject to the impact of operating personnel's subjective factor, likely further reduces cut quality and cutting accuracy.In addition in the use procedure of abrasive cutoff saw, also likely operating personnel are damaged.

In addition, in prior art, also there is a kind of planetary pipe cutter.Planetary pipe cutter is by being fixed on pipeline to be cut on the housing of cutting machine, and cutting tool is fixed on knife rest, and knife rest is rotatably arranged in the frame of cutting machine.By operating personnel, operate cutting machine handle, cutting machine handle is rotated a circle around pipeline to be cut together with knife rest, thereby pipeline is cut.This cutting machine needs operating personnel to operate cutting machine handle to rotate a circle around pipeline to be cut conventionally, and the operating space therefore needing is larger, to having relatively high expectations of operating personnel.In addition, because the action need operating personnel's of cutting machine arm rotates a circle around pipeline to be cut, therefore when cutting has the pipeline compared with big-length, can make troubles to operating personnel, also likely operating personnel be damaged.Therefore, in prior art, need to propose a kind of new-type pipe cutting instrument that can overcome above-mentioned defect.

Utility model content

According to embodiment of the present utility model, a kind of pipe cutter is provided, this pipe cutter comprises bearing, is arranged on the clamping device on bearing and is arranged on the pipe cutting toolbox on bearing.On bearing, be provided with and make pipeline to be cut pass through hole wherein, clamping device is for locating and clamp pipeline to be cut, pipe cutting toolbox is arranged to can be with respect to support movement, and pipe cutting toolbox comprises the cutting tool that power is provided by motor.This pipe cutter also comprises for driving the drive unit of pipeline rotation to be cut.

According in pipe cutter of the present utility model embodiment, in the through hole of bearing, be provided with the lining for accommodating pipeline to be cut, lining is arranged in through hole, to rotate.

Another embodiment according to pipe cutter of the present utility model is provided with driver plate on the peripheral part of lining, and drive unit can drive driver plate rotation, thereby drives lining rotation.

According in another embodiment of pipe cutter of the present utility model, drive unit comprises manual driving device.

According to an also embodiment of pipe cutter of the present utility model, manual driving device comprises gearing driving device.

According in another embodiment of pipe cutter of the present utility model, gearing driving device comprise drive pipeline rotation to be cut longitudinal gear drive assembly, with the first rotation hand wheel of the transverse gear driver part longitudinally connecting to the transmission of gear drive assembly and driving transverse gear driver part.

According to another embodiment of pipe cutter of the present utility model, longitudinally gear drive assembly connects by Bevel Gear Transmission ground with transverse gear driver part.

According in another embodiment of pipe cutter of the present utility model, drive unit comprises Vidacare corp.

According to an also embodiment of pipe cutter of the present utility model, Vidacare corp comprises motor and speed reducer structure.

According in another embodiment of pipe cutter of the present utility model, clamping device comprises first clamp assemblies and the second clamp assemblies that is arranged on the second end relative with first end of lining of the first end of the close pipe cutting toolbox that is arranged on lining.

According to another embodiment of pipe cutter of the present utility model, the first clamp assemblies comprises front chuck, and the second clamp assemblies comprises rear chuck.

According in another embodiment of pipe cutter of the present utility model, on front chuck and/or rear chuck, be provided with hammering dish.

According to an also embodiment of pipe cutter of the present utility model, pipe cutting toolbox is arranged on bearing by slide mechanism, makes the pipe cutting toolbox can be with respect to bearing sliding.

According in another embodiment of pipe cutter of the present utility model, slide mechanism comprises the first slide mechanism, and the first slide mechanism is arranged so that pipe cutting toolbox can slide along the horizontal direction of bearing.

According to another embodiment of pipe cutter of the present utility model, the first slide mechanism comprises the guide rail being arranged on bearing and is arranged on the slide block on pipe cutting toolbox.

According in another embodiment of pipe cutter of the present utility model, the first slide mechanism comprises driving mechanism, and driving mechanism is arranged to drive slide block to slide along guide rail.

According to an also embodiment of pipe cutter of the present utility model, driving mechanism comprises Manual drive mechanism.

According in another embodiment of pipe cutter of the present utility model, Manual drive mechanism comprises the second rotation hand wheel and the leading screw that regularly arrange relative to the second rotation hand wheel, is provided with the inside spin coordinating with the external spiral of leading screw in slide block.

According to another embodiment of pipe cutter of the present utility model, pipe cutting toolbox also comprises second slide mechanism that can make its longitudinal direction along bearing move.

According in another embodiment of pipe cutter of the present utility model, pipe cutting toolbox comprises by motor-driven cutting tool.

An also embodiment according to pipe cutter of the present utility model is provided with for aiming at the alignment device of the cutting position of pipeline to be cut on pipe cutting toolbox.

According in another embodiment of pipe cutter of the present utility model, alignment device is laser alignment device.

According to another embodiment of pipe cutter of the present utility model, motor drives cutting tool by deceleration reversing arrangement.

According in another embodiment of pipe cutter of the present utility model, deceleration reversing arrangement comprises worm-and-wheel gear or bevel gear mechanism.

According to an also embodiment of pipe cutter of the present utility model, pipe cutting toolbox is arranged on bearing by slide block, the first clamp assemblies of clamping device comprises front chuck, and cutting tool is arranged in the side away from front chuck or the close opposite side of front chuck of slide block.

According in another embodiment of pipe cutter of the present utility model, cutting tool is circular saw.

According to pipe cutter of the present utility model, in operating process, do not need cutting tool assembly is rotated, therefore can improve cutting accuracy and the cutting efficiency of cutting machine, installing space and the usage space that can also save pipe cutter.In addition, owing to not needing operating personnel cutting tool assembly to be operated so that it rotates a circle around pipeline to be cut by arm, therefore eliminated the danger that operating personnel is caused to potential injury.Owing to not needing that cutting tool assembly is rotated, and only need to make pipeline to be cut to be rotated centered by himself axis, therefore, can greatly improve operational stability and the security of pipe cutter.

Accompanying drawing explanation

By the specific embodiment part providing referring to accompanying drawing, it is easier to understand that feature and advantage of the present utility model will become, in the accompanying drawings:

Fig. 1 is the perspective view illustrating according to pipe cutter of the present utility model;

Fig. 2 is the decomposition diagram illustrating according to pipe cutter of the present utility model;

Fig. 3 is the side view from cutter unilateral observation illustrating according to pipe cutter of the present utility model;

Fig. 4 is the side view from rear chuck unilateral observation illustrating according to pipe cutter of the present utility model; And

Fig. 5 is along the A-A in Fig. 1 to the longitudinal cross-section view dissecing.

The specific embodiment

With reference to the accompanying drawings the utility model illustrative embodiments is described in detail.To the description of illustrative embodiments, be only for demonstration object, and be never the restriction to the utility model and application or usage.

According to the utility model, provide a kind of pipe cutter 10 as shown in Figure 1.Fig. 2 illustrates the decomposition diagram of pipe cutter shown in Fig. 1 10.When withing reference to the accompanying drawings of pipe cutter 10 of the present utility model, longitudinal direction wherein refers to along putting into pipeline to be cut the direction that the axial direction of pipeline accommodating hole wherein parallels, the direction namely paralleling with the axis direction that is positioned at the pipeline to be cut in cutting machine, and horizontal direction refers to the direction perpendicular with above-mentioned longitudinal direction.

As depicted in figs. 1 and 2, according to pipe cutter 10 of the present utility model, comprise bearing 12, on bearing 12, be provided with and make pipeline to be cut pass through hole 126 wherein.When making pipeline to be cut through through hole 126 and being positioned on bearing 12, can carry out the cutting operation of pipeline.On bearing 12, be provided with guide rail 122, advantageously, guide rail 122 can be arranged on the end of bearing 12.Guide rail 122 extends along the horizontal direction of bearing 12, and through hole 126 is advantageously formed in the protuberance vertically projecting upwards 124 of bearing 12.

The through hole 126 of bearing 12 longitudinal direction along bearing 12 in bearing 12 extends, for accommodating lining 14.Lining 14 is rotatably contained in the through hole 126 of bearing 12, such as being arranged in through hole 126 by rolling bearing or sliding bearing, for pipeline to be cut is contained in the centre bore of lining 14.On lining 14, be provided with the driver plate 142 himself rotating for driving.Driver plate 142 is around the body setting of lining 14, and driver plate 142 is arranged on the peripheral part of lining 14.Advantageously, driver plate 142 is arranged to an end near lining 14.According in embodiment of the present utility model, driver plate 142 is arranged to be positioned at the end of the close guide rail 122 of lining 14.Certainly, driver plate 142 also can be arranged on other positions of lining 14, such as being arranged on the medium position place of lining 14.

For the cutting process location at pipeline the clamping device of clamping pipe, be arranged on bearing 12.According in embodiment of the present utility model, clamping device comprises two relative end the first clamp assemblies and the second clamp assemblies that is separately positioned on lining 14.As shown in Figures 1 and 2, the first clamp assemblies comprises that front chuck 18, the second clamp assemblies comprise rear chuck 20, wherein, are provided with hammering dish 16 on front chuck 18.Hammering dish 16, by utilizing technological means conventional in prior art and front chuck 18 to be set together, does not repeat at this.Equally, rear chuck 20 is rotatably set together with lining 14.On front chuck 18, be provided with 3 claws 182 that distribute equably along its circumferential direction, same, on rear chuck 20, be provided with equally distributed 3 claws 202 of circumferential direction along rear chuck 20.The position of rear chuck 20 after installing as can see from Figure 4 on pipe cutter 10.When making pipeline to be cut through the centre bore of lining 14, can be by the claw targeted duct on chuck, and by rotation hammering dish 16, pipeline is clamped.As shown in Figure 5, the state that is clamped in the pipeline in pipe cutter 10 is shown.

At this, hammering dish 16 also can be arranged on rear chuck 20 or be arranged on front chuck 18 and rear chuck 20.On front chuck 18 and rear chuck 20, also the claw of other any amount can be set, such as arranging 1,2 or more than 3 claws.In addition, when hammering dish 16 is arranged on front chuck 18, rear chuck 20 can be independent of lining 14 and arrange, that is to say, when drive unit drives pipeline rotation, for the front chuck 18 of clamping pipe, rotate together with pipeline with lining 14, and the rear chuck 20 that is independent of lining 14 can not rotate, and only pipeline is played to supporting role.

On bearing 12, be provided with for driving the drive unit of pipeline rotation to be cut.According in embodiment of the present utility model, drive unit is manual driving device 22.Due in the cutting process of pipeline, pipeline to be cut is relative with the clamping device of pipeline to keep together regularly, so drive unit will drive clamping device to rotate together with pipeline.Also just say, drive unit, is manual driving device 22 in the present embodiment, and the front chuck 18, the rear chuck 20 that driving are provided with to hammering dish 16 rotate together with lining 14.This drive unit 22 comprises that first outside rotation hand wheel 222, the first rotation hand wheels 222 of the housing that is arranged on bearing 12 drive longitudinal driven unit 226 by horizontal driver part 224, thereby makes the direction of motion 90-degree rotation of the first rotation hand wheel 222.Longitudinally driven unit 226 is arranged in the protuberance 124 of bearing 12 abreast with the axial direction of lining 14, and for driving lining 14.At this, the bevel gear being arranged on the longitudinal driven unit 226 of driving coordinates with the bevel gear on horizontal driver part 224, thereby realizes the change of the direction of motion.Laterally driver part 224 is rotatably installed in the sidewall of bearing 12 by bearing 228, makes the rotation of horizontal driver part 224 perpendicular to the longitudinal direction of pipe cutter 10.Longitudinally driven unit 226 comprises spindle unit 2262 and is arranged on regularly the drive division 2264 of the end of spindle unit, drive division 2264 for driver plate 142 transmissions with lining 14 engage, thereby drive lining 14 to rotate.Longitudinally driven unit 226 is arranged in the protuberance 124 of bearing 12 by bearing 230 to be parallel to the mode of the axis direction of through hole 126.At this, manual driving device 22 also can adopt other transmission devices, such as belt driver, chain and sprocket driving device and worm gearing etc.

Drive unit also can comprise Vidacare corp.Such as, can utilize motor and speed reducer structure to replace the first rotation hand wheel 222 in above-described embodiment, also can utilize the power output shaft of motor and speed reducer structure directly to drive longitudinal driven unit 226.

For cutting the pipe cutting toolbox 24 of pipeline, be arranged on bearing 12.Pipe cutting toolbox 24 is arranged on bearing 12, to move, such as the longitudinal direction along bearing 12 and/or horizontal direction move.Advantageously, pipe cutting toolbox 24 is arranged on bearing 12 by slide mechanism, makes the pipe cutting toolbox 24 can be with respect to bearing sliding.Slide mechanism comprises the first slide mechanism, and the first slide mechanism comprises driving mechanism, and according in embodiment of the present utility model, the driving mechanism of the first slide mechanism of pipe cutting toolbox 24 is Manual drive mechanism.As depicted in figs. 1 and 2, slide mechanism comprises guide rail 122 and slide block 242, and by slide block 242, the horizontal direction along bearing 12 is slidably disposed on guide rail 122 pipe cutting toolbox 24.Bottom at slide block 242 is provided with slide rail, coordinates slidably with the slide rail arranging on guide rail 122.On the sidepiece of a side that is provided with the first rotation hand wheel 222 of the close bearing 12 of slide block 242, be provided with leading screw 244, leading screw 244 passes and is arranged on sidewall 128 mesopores on bearing 12, and is set together regularly with the second rotation hand wheel 246.The second rotation hand wheel 246 can be arranged on sidewall 128 by bearing.In slide block 242, be provided with the inside spin matching with external spiral on leading screw 244, thereby can convert rotatablely moving of the second rotation hand wheel 246 and leading screw 244 rectilinear motion of slide block 242 to, thereby drive whole toolbox 24 to move on guide rail 122 by slide block 242.According in above-described embodiment of the present utility model, the second rotation hand wheel 246, the leading screw 244 that regularly arrange relative to the second rotation hand wheel 246 and be arranged in slide block 242 and the Manual drive mechanism of the inside spin coordinating with the external spiral of leading screw 244 formation pipe cutting toolbox 24.

At this, due to the first rotation hand wheel 222 and the second rotation hand wheel 246 are arranged on the same side of pipe cutter 10, so convenient operation personnel operate two rotation hand wheels simultaneously.In addition, by the inside spin in slide block 242 and coordinating of external spiral on leading screw 244, realized rotatablely moving to the straight-line transformation of slide block of the second rotation hand wheel 246 as mentioned above, at this, also can in the second rotation hand wheel 246, inside spin be set, leading screw 244 and slide block 242 are set together regularly, thereby rotatablely moving of the second rotation hand wheel 246 are converted to the rectilinear motion of leading screw 244 and slide block 242.In embodiment as above, also can utilize particularly alternative the second rotation hand wheel 246 of stepper motor of motor, thereby realize the motorization control of the motion of pipe cutting toolbox 24.

For the cutter 248 that cuts pipeline by transmission mechanism and motor 250 transmissions link together, this transmission mechanism is for example deceleration reversing arrangement.The bottom of motor 250 is provided with reducing gear 252 and reversing gear mechanism 254, thereby converts rotatablely moving of motor 250 to cutter 248 rotatablely move.According in embodiment of the present utility model, reversing gear mechanism 254 is two intermeshing the first bevel gears 2542 and the second bevel gear 2544, as shown in Figure 3.At this, also can between motor 250 and cutter 248, adopt Worm and worm-wheel gearing, can reach equally and change the driving direction of motor and be the object of decelerating through motor.Adopt Worm and worm-wheel gearing can change considerably gearratio, therefore can be larger with respect to the reducing gear of arranging a plurality of reduction gearing save space.In addition, for cutting the cutting tool of pipeline, can adopt the disc-shaped cutting tool 248 by motor driving rotation as shown in Figure 3, certainly, also can adopt by motor and drive the bar shaped moving reciprocatingly to saw.

In embodiment as shown in Figure 1, cutting tool 248 is arranged in the side away from front chuck 18 of slide block 242, and the advantage so arranging is to cutting tool 248, to safeguard or dismounting easily.In addition, cutting tool 248 also can be arranged on the opposite side of close front chuck 18 of slide block 242, make so the front chuck 18 of cutting tool 248 distance nearer, thereby make the cutting position of pipeline to be cut and the distance between front chuck 18 less, that is to say, the pipeline to be cut in the past length of the cantilever of chuck 18 projections reduces.Can improve the rigidity in pipe cutting process thus, thereby improve the cutting accuracy of pipeline.

For the hole 256 that holds pipeline to be cut, be arranged on slide block 242, and the cutting edge of cutter 248 is projected in hole 256, thereby can carries out cutting operation to being arranged in the pipeline in hole 256, from Fig. 3, can most clearly observe these structures.In addition, the cutting position on targeted duct is more accurately provided with alignment device 258 on slide block 242.Advantageously, alignment device 258 is laser alignment device, and the position observed of the person that is arranged on convenient operation.Further, the cutting edge of laser alignment device being arranged to make to its laser emission point and cutter 248 aligns along the axial direction of bearing 12, thereby convenient operation personnel position the cutting position on pipeline to be cut.

Below briefly explain according to the operating process of pipe cutter 10 of the present utility model.When utilization is cut pipeline according to pipe cutter 10 of the present utility model, first, on pipeline to be cut, according to required Cutting Length, make cut mark; Then an inside of being sidelong into pipe cutter 10 of pipeline chuck 20 from pipe cutter 10 of cut mark will be carried out, the location of pipeline passage that pipeline to be cut is formed through the hole 256 in rear chuck 20, lining 14, front chuck 18 and slide block 242 successively; Next step front chuck 18 of rotation and rear chuck 20, make pipeline to be cut be positioned substantially at the center position of front chuck 18 and rear chuck 20, but pipeline still can be with respect to the claw 182 of front chuck 18 and

rear chuck

20 and 202 and move, that is to say, now front chuck 18 and rear chuck 20 are not fully fixed pipeline to be cut; Ready-made mark on pipeline to be cut is alignd with the cutting edge of cutter 248, can be by utilizing the cutting position in laser alignment device 258 align with tube at this; After accurately aiming at, rotate front chuck 18 and rear chuck 20, make the claw 202 of rear chuck 20 and the claw 182 of front chuck 18 block pipeline to be cut, activate subsequently hammering dish 16, pipeline to be cut is positioned in pipe cutter 10 securely.Shown in Fig. 5, pipeline to be cut is clamped in the state in cutting machine 10.

Then, rotate the second rotation hand wheel 246, make pipe cutting toolbox 24 towards the direction motion near pipeline to be cut, until the cutting edge of the cutting tool 242 on toolbox 24 is near the outer wall of pipeline to be cut; Then start and be arranged on the control button 130 on pipe cutter 10, for motor 250 switches on power, make cutter 242 start to rotate and start to cut pipeline; Then be rotated further the second rotation hand wheel 246, slide block 242 is moved along the direction near the second rotation hand wheel 246, thereby drive cutting tool 248 to move together, until cutter 248 cuttings surpass the degree of depth of the wall thickness of pipeline, such as cutting exceeds the inwall 1mm-2mm of pipeline, the second rotation hand wheel 246 stops operating; Finally, rotate the first rotation hand wheel 222, front chuck 18, lining 14 and accommodating pipeline are wherein rotated together, when rotation is spent through 360, cutter 248 cuts one week along the periphery wall of pipeline, thereby completes the cutting operation of pipeline.Finally, cut off the electricity supply, stop the operation of pipe cutter 10.

According to pipe cutter 10 of the present utility model in use without cutting tool assembly 24 is rotated, thereby overcome the problem of the cutting precision variation causing due to the rotation of toolbox of the prior art, and installing space and the usage space that can save thus pipe cutter 10.In addition, owing to not needing operating personnel cutting tool assembly to be operated so that it rotates a circle around pipeline to be cut by arm, therefore eliminated the danger that operating personnel is caused to potential injury.Owing to not needing that cutting tool assembly 24 is rotated, and only need to make pipeline to be cut to be rotated centered by himself axis, therefore, can greatly improve operational stability and the security of pipe cutter.

In addition, in order to ensure user's security, can be at the outer setting guard shield of cutter 248, thus avoid cutter 248 to produce any contact with outside in rotary course.Although in embodiment illustrated in the accompanying drawings with cutting disk saw blade for having exemplified cutting tool 248, it can be the cast-cutting saw slice of being made by materials such as high-speed steel, carbon steels,, also can adopt other cutting tools, such as adopting abrasive cutoff saw.In order to realize the more accurate cutting position location on pipeline to be cut, the second driving mechanism can also be set on pipe cutting toolbox 24.The second driving mechanism is arranged to make pipe cutting toolbox 24 to move along the longitudinal direction of pipe cutter 10.Such as, the longitudinal rail of the longitudinal direction that is parallel to pipe cutter 10 can be set, and the second relevant driving mechanism is set, so that can be manually or flexibly regulate cutting tool 248 along the position of the axis direction of pipeline to be cut, can further improve pipeline cutting accuracy along its length thus.

Further, for the automaticity of saving manpower and improving pipe cutter 10, can utilize motor to replace the first rotation hand wheel 222 and the second rotation hand wheel 246.Can, by the interior increase sensor of pipe cutter 10 and increase control system, realize the automatic control of pipe cutter 10.Such as passing through near the installation site sensor position of cutting tool 248, and increase automatic control system, by the signal controlling of position sensor, drive the motor of slide block 242 motions, thereby realize transverse movement and/or the lengthwise movement of slide block 242, automatically complete the control of the definite and depth of cut of cutting position.Equally, the first rotation hand wheel 222, when utilizing motor to replace, can be controlled the rotation of motor by control system, automatically completes the rotations of 360 degree of cut pipeline, thereby cuts the pipeline of Len req from whole pipeline.

Although the utility model is described with reference to illustrative embodiments, but be to be understood that, the utility model is not limited to the specific embodiment of describing in detail and illustrating in literary composition, in the situation that not departing from claims limited range, those skilled in the art can make various modification and improvement to described illustrative embodiments.

Claims

1. a pipe cutter (10), comprising:

Bearing (12) is provided with and makes pipeline to be cut pass through hole (126) wherein on described bearing (12);

Clamping device, it is upper that described clamping device is arranged on described bearing (12), for locating and clamp described pipeline to be cut; And

Pipe cutting toolbox (24), described pipe cutting toolbox (24) is arranged on described bearing (12), described pipe cutting toolbox (24) can be moved with respect to described bearing (12), and described pipe cutting toolbox (24) comprises the cutting tool that power is provided by motor;

It is characterized in that, described pipe cutter (10) also comprises drive unit, and described drive unit is for driving described pipeline to be cut rotation.

2. pipe cutter as claimed in claim 1 (10), wherein, in the described through hole (126) of described bearing (12), be provided with the lining (14) for accommodating pipeline to be cut, described lining (14) is arranged in described through hole (126), to rotate.

3. pipe cutter as claimed in claim 2 (10), wherein, on the peripheral part of described lining (14), be provided with driver plate (142), described drive unit can drive described driver plate (142) rotation, thereby drives described lining (14) rotation.

4. the pipe cutter (10) as described in any one in claim 1-3, wherein, described drive unit comprises manual driving device (22).

5. pipe cutter as claimed in claim 4 (10), wherein, described manual driving device (22) comprises gearing driving device.

6. pipe cutter as claimed in claim 5 (10), wherein, described gearing driving device comprises the longitudinal gear drive assembly (226) that drives described pipeline to be cut to rotate, the transverse gear driver part (224) connecting with described longitudinal gear drive assembly (226) transmission ground and the first rotation hand wheel (222) that drives described transverse gear driver part (224).

7. pipe cutter as claimed in claim 6 (10), wherein, described longitudinal gear drive assembly (226) connects by Bevel Gear Transmission ground with described transverse gear driver part (224).

8. the pipe cutter (10) as described in any one in claim 1-3, wherein, described drive unit comprises Vidacare corp.

9. pipe cutter as claimed in claim 8 (10), wherein, described Vidacare corp comprises motor and speed reducer structure.

10. pipe cutter as claimed in claim 2 (10), wherein, described clamping device comprises first clamp assemblies and the second clamp assemblies that is arranged on the second end relative with described first end of described lining (14) of the first end of the close described pipe cutting toolbox (24) that is arranged on described lining (14).

11. pipe cutters as claimed in claim 10 (10), wherein, described the first clamp assemblies comprises front chuck (18), described the second clamp assemblies comprises rear chuck (20).

12. pipe cutters as claimed in claim 11 (10) wherein, are provided with hammering dish (16) on described front chuck (18) and/or described rear chuck (20).

13. pipe cutters (10) as described in any one in claim 1-3, wherein, it is upper that described pipe cutting toolbox (24) is arranged on described bearing (12) by slide mechanism, and described pipe cutting toolbox (24) can be slided with respect to described bearing (12).

14. pipe cutters as claimed in claim 13 (10), wherein, described slide mechanism comprises the first slide mechanism, and described the first slide mechanism is arranged so that described pipe cutting toolbox (24) can slide along the horizontal direction of described bearing (12).

15. pipe cutters as claimed in claim 14 (10), wherein, described the first slide mechanism comprises the guide rail (122) being arranged on described bearing (12) and is arranged on the slide block (242) on described pipe cutting toolbox (24).

16. pipe cutters as claimed in claim 15 (10), wherein, described the first slide mechanism comprises driving mechanism, described driving mechanism is arranged to drive described slide block (242) to slide along described guide rail (122).

17. pipe cutters as claimed in claim 16 (10), wherein, described driving mechanism comprises Manual drive mechanism.

18. pipe cutters as claimed in claim 17 (10), wherein, described Manual drive mechanism comprises the second rotation hand wheel (246) and the leading screw (244) that regularly arrange relative to described the second rotation hand wheel (246), is provided with the inside spin coordinating with described leading screw (244) external spiral in described slide block (242).

19. pipe cutters as claimed in claim 14 (10), wherein, described pipe cutting toolbox (24) also comprises second slide mechanism that can make its motion of longitudinal direction along described bearing (12).

20. pipe cutters (10) as described in any one in claim 1-3, wherein, described pipe cutting toolbox (24) comprises the cutting tool (248) being driven by motor (250).

21. pipe cutters as claimed in claim 20 (10) wherein, are provided with the alignment device (258) for aiming at the cutting position of pipeline to be cut on described pipe cutting toolbox (24).

22. pipe cutters as claimed in claim 21 (10), wherein, described alignment device (258) is laser alignment device.

23. pipe cutters as claimed in claim 20 (10), wherein, described motor (250) drives described cutting tool (248) by deceleration reversing arrangement.

24. pipe cutters as claimed in claim 23 (10), wherein, described deceleration reversing arrangement comprises worm-and-wheel gear or bevel gear mechanism.

25. pipe cutters as claimed in claim 20 (10), wherein, described pipe cutting toolbox (24) is arranged on described bearing (12) by slide block (242), the first clamp assemblies of described clamping device comprises front chuck (18), and described cutting tool (248) is arranged in the side away from described front chuck (18) or the close opposite side of described front chuck of described slide block (242).

26. pipe cutters as claimed in claim 20 (10), wherein, described cutting tool (248) is circular saw.