CN2877930Y

CN2877930Y - Pipe cutter

Info

Publication number: CN2877930Y
Application number: CN 200620054291
Authority: CN
Inventors: 陈配榕
Original assignee: ZHUJIANG STEEL PIPE CO Ltd PANYU
Current assignee: ZHUJIANG STEEL PIPE CO Ltd PANYU
Priority date: 2006-01-20
Filing date: 2006-01-20
Publication date: 2007-03-14
Anticipated expiration: 2016-01-20

Abstract

The utility model relates to a pipe cutter which belongs to the cutting field, comprising a control system and a pipe cut machine, wherein the pipe cut machine comprises a driving system, a clamp device and a pipe cut device, a chief axis is fixed at the body by a bearing, the chief axis is actuated by a motor belt wheel though a gear wheel, the bottom of the chief axis is connected with a slide block and a guide screw, a steel pipe is clamped by a push bar though both sides of the clamp splice. The pipe cut device comprises a chief axis, a cutter head and a cutting blade, wherein the chief axis is a hollow axis provided with a steel pipe through the center, the cutter head is fixed at one end of the chief axis and is rotated with the chief axis, the cutting blade is arranged at the cutting head. The utility model has the advantages that no cutting scrap will be produced during cutting steel pipes, and the cutting length and accuracy of the steel pipes are increased. Further, it is convenient to operate and has a high efficiency.

Description

Pipe cutting machine

Technical field

The utility model pipe cutting machine belongs to the cutting field, is mainly used in steel pipe manufacturing and manufacture field, particularly the cut-out of high frequency vertical masonry joint electric welded steel pipe.

Background technology

At present, in the production and processing of high frequency vertical masonry joint electric welded steel pipe, the cutting method of steel pipe mainly contains sawing machine sawing, emery wheel cutting, roller extruding etc., and these steel pipe cutting methods are in shortcoming such as exist in varying degrees that cutting efficiency is low, otch is coarse, the cutting noise is big, shearing length low precision, smear metal are many.In the higher steel pipe's production of this automaticity of high frequency vertical masonry joint electric welding, steel pipe cut off poor efficiency directly influenced each operation on the production line, suppressed the quick production of high frequency vertical masonry joint electric welded steel pipe to a certain extent.

The content of utility model

The purpose of this utility model is to overcome existing deficiency, improves on the basis of original roller extruding, and a kind of raising shearing length precision is provided, and can the steel pipe of different tube diameters be cut off, the efficient height, easy and simple to handle, the pipe cutting machine of minimizing smear metal.

The purpose of this utility model reaches by following measure, it is made up of individual two parts, control system and Pipe Cutting machine, and control system is on a control platform, form by PLC, touch-screen, encoder and frequency converter, control the motion mode of pipe cutting machine with the mode of programming; PLC controls hydraulic starting, comprises the hydraulic cylinder of anchor clamps and the hydraulic cylinder of dead man, and behind the clamp steel pipe, pull bar drives the blade feed simultaneously, cuts off the back release of pressure, and anchor clamps and blade are got back to original position; Various kinematic parameters are set on touch-screen, simple to operation; Encoder is measured the pace of steel pipe and is calculated steel pipe length according to speed, has guaranteed the high accuracy of shearing length; Seesawing of Frequency Converter Control pipe cutting machine.The Pipe Cutting machine is made up of transmission system, anchor clamps, pipe installation.Transmission system is by track, slide block, screw mandrel is formed, main shaft is installed on the casing by bearing fixing, and the motion of main shaft is by the transmission of electrical machine belt pulley driven gear, and gear is installed on the main shaft, casing is installed in orbit, bottom in succession slide block and screw mandrel provide power by the rotation of screw mandrel for seesawing, and pipe cutting machine is slided in orbit.Anchor clamps clamp steel pipe when cutting off steel pipe, it provides clamping force by hydraulic cylinder, and the each stroke of hydraulic cylinder is all fixed, and anchor clamps can increase or reduce the clamp piece according to different calibers.Under the thrust of hydraulic cylinder, push rod promotes fixture block and clamps steel pipe from both sides, according to different tube diameters, can increase and decrease the cushion block that is fixed on the fixture block, and fixture block both sides power is even, guaranteed steel pipe to neutrality, improved the cut-out precision.Pipe installation is made up of main shaft, cutterhead and blade.Main shaft is a hollow shaft, and steel pipe passes through in the centre, and main shaft is rotated by driven by motor, and cutterhead is fixed on an end of main shaft, and along with main shaft rotates together, blade is installed on the cutterhead, and the bottom has tooth bar to cooperate with elevating arc.During Pipe Cutting, dead man drives elevating arc and rotates, and blade is just pressed toward steel tube surface, and blade is not with driving force, does not produce rotation, is slowly rotated by the frictional force effect of the rotation of main shaft and steel pipe.When depth of cut increase, when blade touches steel tube surface, earlier at next section of surface pressure impression, rotation along with main shaft, three blades are that revolution motion is done at the center with the main shaft, and steel tube surface has a circle impression soon, and the depth of cut slowly increases, impression deepens and penetrates steel pipe, thereby steel pipe is cut off, and blade is metal to be squeezed to open under the effect of pressure, so do not produce smear metal when cutting off steel pipe, and three blades move simultaneously, have improved efficient and uniformity.

The beneficial effects of the utility model are, can be when cutting off steel pipe chipless, improved the shearing length precision of steel pipe, easy to operate, the efficient height.

Description of drawings

Accompanying drawing 1 is a drive system structure schematic diagram of the present utility model.

Accompanying drawing 2 is clamp structure schematic diagrames of the present utility model.

Accompanying drawing 3 is that cutter cuts off the steel pipe schematic diagram.

Accompanying drawing 4 is tool motion schematic diagrames.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Shown in accompanying drawing 1, accompanying drawing 3, the utility model Pipe Cutting machine is by cutterhead 2, bearing 3, casing 4, dead man assembly 5, pinion 7, gear wheel 8, belt wheel 9, blade 10, cutter piece 11, bearing 12, tooth bar 13, screw mandrel 14, track 15, elevating arc 16, main screw mandrel 17, contiguous block 18, tooth bar 20, main shaft 21 is formed, cutterhead is fixedly mounted on the main shaft by screw 1, and main shaft is fixed on the casing by pair of bearings 3, and the motion of main shaft 21 drives pinions 7 and gear wheel 8 by electrical machine belt pulley 9 and rotates.Casing is installed on the track 15, bottom in succession slide block and screw mandrel, and contiguous block 18 is connected with main screw mandrel 17, provides power by the rotation of screw mandrel for seesawing, and pipe cutting machine is slided in orbit.Blade 10 is fixing by pressure knife block 11, with 12 supportings of two bearings, is free to rotate, and elevating arc 16 and tooth bar 13, tooth bar 20 component movement mechanisms, screw mandrel 14 can be according to the overhang of different caliber manual adjustments blades.Dead man assembly 5 is by 27 pullings of the dead man in the accompanying drawing 3, make tooth bar 20 along main shaft 21 lengthwise movements, dotted line among the figure is a movement locus, tooth bar 20 motions drive elevating arc 16 and rotate, elevating arc 16 tooth bars 13 component movement mechanisms make tooth bar 13 close to main shaft 21, tooth bar 13 assembly on the blade 10 of ining succession, assembly on the blade 10 can slide on cutterhead 2, so blade 10 can be to the steel pipe feed.Main shaft is a hollow shaft, and steel pipe passes through in the centre, and main shaft is rotated by driven by motor, and cutterhead is fixed on an end of main shaft, and along with main shaft rotates together, blade is installed on the cutterhead, and the bottom has tooth bar to cooperate with elevating arc.

As shown in Figure 2, the utility model is under the thrust of hydraulic cylinder 23, push rod 26 promotes fixture block 22 from both sides, clamp steel pipe 24, in fixture block 22, be provided with cushion block 25, according to different tube diameters, can increase and decrease the cushion block 25 that is fixed on the fixture block 22, fixture block both sides power is even, guaranteed steel pipe 24 to neutrality, improved the cut-out precision.

Shown in accompanying drawing 3, accompanying drawing 4, during the utility model Pipe Cutting, hydraulic cylinder 28 drives dead man 27 and rotates, and blade 10 is installed on the cutterhead 2, and screw mandrel 14 can be according to the overhang of different caliber manual adjustments blades.Cut off 28 times original positions of back hydraulic cylinder, blade returns cutter, and machine all resets, and finishes a cut-out cycle.The dead man assembly is by dead man 27 pullings, make tooth bar along the main shaft lengthwise movement, the tooth bar motion drives elevating arc and rotates, elevating arc, tooth bar component movement mechanism, make tooth bar close to main shaft, the tooth bar assembly on the blade 10 of ining succession, the assembly on the blade 10 can slide on cutterhead 2, so blade 10 can be to the steel pipe feed.3 blades 10 are the center with steel pipe 24, and V2 makes revolution motion with speed, and blade 10 does not have principal cutting movement in the course of the work, but when it touched steel pipe 24, owing to be subjected to the effect of frictional force, blade 10 slowly rotated with speed V1, and at this moment, V2 is much larger than V1.Because the slow rotation of blade 10, generation be rolling friction, frictional force can not scrape smear metal on steel pipe 24 surfaces.Improve stock utilization, improved cut-out efficient.

Claims

1. pipe cutting machine, it is made up of individual two parts, control system and Pipe Cutting machine, it is characterized in that the Pipe Cutting machine is by transmission system, anchor clamps, pipe installation is formed, transmission system is by track, slide block, screw mandrel is formed, and main shaft is installed on the casing by bearing fixing, the motion of main shaft is by the transmission of electrical machine belt pulley driven gear, gear is installed on the main shaft, and casing is installed in orbit, bottom in succession slide block and screw mandrel, push rod promotes fixture block and clamps steel pipe from both sides, pipe installation is by main shaft, cutterhead and blade are formed, and main shaft is a hollow shaft, and steel pipe passes through in the centre, cutterhead is fixed on an end of main shaft, along with main shaft rotates together, blade is installed on the cutterhead, and the bottom has tooth bar to cooperate with elevating arc.

2. pipe cutting machine according to claim 1, it is characterized in that cutterhead is fixedly mounted on the main shaft by screw, main shaft is fixed on the casing by pair of bearings, the motion of main shaft drives pinion and gear wheel by electrical machine belt pulley and rotates, blade is fixed by pressure knife block, with two bearing supportings, be free to rotate elevating arc and tooth bar component movement mechanism.

3. pipe cutting machine according to claim 1 is characterized in that screw mandrel regulates the overhang of blade.

4. pipe cutting machine according to claim 1 is characterized in that the dead man assembly is spurred by dead man, and the rack drives elevating arc rotates, the rack drives blade.

5. pipe cutting machine according to claim 1 is characterized in that being provided with cushion block in fixture block.

6. pipe cutting machine according to claim 1, it is characterized in that control system is on a control platform, form by PLC, touch-screen, encoder and frequency converter, PLC controls hydraulic starting, various kinematic parameters are set on touch-screen, encoder is measured the pace of steel pipe, the seesawing of Frequency Converter Control pipe cutting machine.