CN201235419Y

CN201235419Y - Steel tube ring-cutting machine

Info

Publication number: CN201235419Y
Application number: CNU200720075907XU
Authority: CN
Inventors: 杨丰收
Original assignee: SHANGHAI JINGZE AUTOMATION DEVICE CO Ltd
Current assignee: SHANGHAI JINGZE AUTOMATION DEVICE CO Ltd
Priority date: 2007-11-23
Filing date: 2007-11-23
Publication date: 2009-05-13
Anticipated expiration: 2017-11-23

Abstract

The utility model relates to a semi-automatic loop cutting machine of steel pipes for cutting the steel pipes, in particular to a cutting device of the steel pipes, which comprises a door-shaped framework, a fixing cutter board which is fixed in the door-shaped framework, and a moving cutter board clamp, a moving cutter board which is moveably arranged between the fixing cutter board and the moving cutter board clamp, a driving mechanism which drives the moving cutter board to do eccentric circle cutting motion around the circle center of the steel pipes, a cutter which is traversed through inner holes of the steel pipes, a fixing external cutter which is arranged in a central hole I of the fixing cutter board and forms a pair of cutting blades with the moving inner cutter, and a moving external cutter which is arranged in the central hole II of the moving cutter board and forms a pair of the cutting blades with the fixing inner blade. The driving mechanism of the utility model comprises an oil cylinder which is arranged on the door-shaped framework, a connecting plate which is connected with an oil cylinder piston through a connecting shaft, a rack which is arranged on the connecting plate and extends downwards to be inserted into a rack groove which is arranged in the clamp of the moving cutter plate, and an eccentric gear which is arranged on the moving cutter board through an eccentric gear shaft, then is arranged on the moving cutter board and is engaged with the rack.

Description

The steel pipe girdling machine

Technical field:

The utility model relates to a kind of steel pipe cutter sweep, is a kind of semi-automatic steel pipe girdling machine that is used to cut steel pipe specifically.

Background technology:

The steel pipe cutting is one of important production link of the steel pipe's production and the department of use, the domestic steel pipe cutting-off method that is used for producing mainly is at present: cold saw is sawed-off, cutting type cuts off, grinding wheel is sawed-off etc., these methods belong to non-cut mode, its major defect is that the steel pipe port is undesirable, burr is thick, metal loss is big, grinding wheel consumption is big, and contaminated environment etc.The method that belongs to cut mode has: punching method, rotation are inserted into method, plug shearing method etc., and its major defect is that the otch section forms small stair, otch inclination etc., thereby shearing quality is not high.At present, the workman is that cold saw is sawed-off in the main mode that steel pipe in enormous quantities cuts off on the market, produces in order to satisfy, and need purchase a large amount of sawing machines, and increase personnel configuration, has increased the operating cost of enterprise greatly.

The utility model content:

Technical problem to be solved in the utility model is to provide a kind of more effectively steel pipe girdling machine, to solve the existing existing many weak points of steel pipe cutter sweep.

Technical problem to be solved in the utility model can be achieved through the following technical solutions:

The steel pipe girdling machine comprises: a type frame is fixedly mounted on fixedly knife plate and movable blade plate holder plate in the type frame;

One is movably set in the movable knife plate between described fixedly knife plate and the movable blade plate holder plate, offers at described fixedly knife plate, movable knife plate and movable blade plate holder plate center to hold centre bore I, II, the III that steel pipe passes;

One driving activity knife plate is done the driving mechanism of eccentric circumference shearing motion around the center of circle of steel pipe;

One penetrates the interior cutter of described steel tube inner hole, and described fixing interior cutter and movable interior cutter are installed on the described interior cutter;

Be installed among the fixing knife plate centre bore I and with described activity in cutter form the fixing outer cutter of one pair of shear blade;

Be installed in the II centre bore of described movable knife plate and with described fixing in cutter form the movable outer cutter of one pair of shear blade.

Driving mechanism of the present utility model comprises that one is installed in the oil cylinder on the type frame, the connecting plate that is connected with oil cylinder piston by connecting axle, be installed on the connecting plate and extend downwards to be inserted into and be opened in the tooth bar in the rach slot in the movable blade plate holder plate, by the eccentric gear axle be installed on the movable knife plate and with the eccentric gear of described tooth bar engagement.

In order to make connecting plate and described movable knife plate motion steadily, the directive wheel that rolls along the door pillar inner face of door type frame is installed at the two ends of described connecting plate.

The beneficial effects of the utility model are the weak points that remedied existing shearing equipment, can improve the working (machining) efficiency of steel pipe girdling machine greatly, personnel's configuration then reduces accordingly, is zero for the loss of material, and can produce environmental pollution in the course of work.

Description of drawings:

Fig. 1 is the utility model steel pipe girdling machine main machine structure schematic diagram.

Fig. 2 is that the A-A of Fig. 1 cuts open schematic diagram.

Fig. 3 is the I partial enlarged view of Fig. 2.

Section schematic diagram when Fig. 4 is 0 ° of a steel pipe ring cutting.

Section schematic diagram when Fig. 5 is 45 ° of steel pipe ring cuttings.

Section schematic diagram when Fig. 6 is 90 ° of steel pipe ring cuttings.

Section schematic diagram when Fig. 7 is 135 ° of steel pipe ring cuttings.

Section schematic diagram when Fig. 8 is 180 ° of steel pipe ring cuttings.

Section schematic diagram when Fig. 9 is 225 ° of steel pipe ring cuttings.

Section schematic diagram when Figure 10 is 270 ° of steel pipe ring cuttings.

Section schematic diagram when Figure 11 is 315 ° of steel pipe ring cuttings.

Section schematic diagram when Figure 12 is 360 ° of steel pipe ring cuttings.

Among the figure: 1-movable knife plate, 2-movable blade plate holder plate, 3-door type frame, 4-fixing interior cutter, 5-mandrel, 6-fixing outer cutter; 7-is knife plate fixedly, 8-movable outer cutter, 9-movable interior cutter, 10-tooth bar, 11-eccentric gear axle, 12-connecting plate, 13-oil cylinder, 14-top board, 15-bottom connecting plate, 16-connecting plate, 17-bearing pin, 18-adjusting pad, 19-construction bolt, 20-cutter retainer ring, 21-connecting axle, 22-steel pipe, 23-door pillar, 24-leg, 25-set bolt, 26-centre bore I, 27-center hole II, 28-center hole II I, 29-rach slot, 30-eccentric gear, 31-directive wheel, 32-steady pin, 33-pressure spring.

The specific embodiment:

Below in conjunction with accompanying drawing structure of the present utility model and operation principle are done further introduction.

As Fig. 1, Fig. 2, shown in Figure 3, the door type frame 3 of steel pipe girdling machine comprises two door pillars 23 and the top board 14 that two door pillar 23 upper ends are coupled together, and the bottom connecting plate 15 that two door pillar 23 lower ends are coupled together, respectively be provided with a leg 24 in the bottom of door pillar 23, so that whole door type frame 3 is supported on the basis.

Fixedly knife plate 7 and movable blade plate holder plate 2 are fixed on two door pillars 23 by bearing pin 17, connecting plate 16 and set bolt 25, and fixedly knife plate 7 and movable blade plate holder plate 2 are positioned at type frame 3 doorframe, are fixed.Fixedly the distance between knife plate 7 and the movable blade plate holder plate 2 is adjusted by adjusting pad 18, to adjust the movable knife plate degree that knife plate 7 and movable blade plate holder plate 2 clamp that is fixed, should can carry out the off-centre rotation freely by assurance activity knife plate 1, not make movable knife plate 1 phenomenon that pine strides occur again.

Movable knife plate 1 is placed in fixedly between the knife plate 7 and movable blade plate holder plate 2, offer at fixedly knife plate 7, movable knife plate 1 and movable blade plate holder plate 2 centers and to hold centre bore I26, II27, the III28 that steel pipe 22 passes, wherein fixedly the center hole II I28 of the centre bore I26 of knife plate 7 and movable blade plate holder plate 2 is concentric, is e and the center hole II 27 of movable knife plate 1 departs from the centre distance of steel pipe 22.

At movable knife plate 1 four eccentric gear axles 11 are installed, each eccentric gear axle 11 is equipped with an eccentric gear 30, in movable blade plate holder plate 2, have simultaneously and run through the rach slot 29 of whole movable blade plate holder plate about in the of 2 and the gear grooved that holds four eccentric gears 30, be installed in two toothed rack 10 on the connecting plate from rach slot 29, each toothed rack 10 and two eccentric gears 30 engagements.

The oil cylinder 13 of driving mechanism is installed on the top board of type frame 3 14 by securing member, its oil cylinder piston connects connecting plate 12 by connecting axle 21, the directive wheel 31 that rolls along door pillar 23 inner faces of portal frame 3 is installed, to guarantee connecting

plate

12 and 1 motion of movable knife plate steadily at the two ends of connecting plate 12.

In the centre bore I26 of fixing knife plate 7, fixing outer cutter 6 is installed, cutter 8 outside the activity is installed by cutter retainer ring 20 in movable knife plate 1 center hole II 27 by cutter retainer ring 20.The steel pipe 22 that is placed on the charging raceway is promoted by the material-pulling device that the hydraulic motor in the feed system drives, on mandrel 5, slide, be sent among centre bore I26, II27, the III28 of fixedly knife plate 7, movable knife plate 1 and movable blade plate holder plate 2, the termination of mandrel 5 be equipped with by steady pin 32 fixing in cutter 4, cutter 9 in the activity is installed by pressure spring 33 and construction bolt 19 on the cutter 4 in fixing.

Cutter 4 forms one pair of shear blade with movable outer cutter 8 in fixing, and cutter 9 forms one pair of shear blade with fixing outer cutter 6 in movable.

The utility model can with the detent mechanism coupling of restriction steel pipe 22 positions, can be delivered to the position by material-pulling device exactly to guarantee steel pipe 22.Feed system that adopts and detent mechanism are not the contents of the utility model protection, in this omission, apply for separately.

Referring to Fig. 4 to Figure 12, after steel pipe 22 pushed putting in place, start oil cylinder 13, oil cylinder piston promotes connecting plate 12 and tooth bar 10 moves downward, by the engagement of tooth bar 10 with eccentric gear 30, eccentric gear 30 is realized 360 ° of rotations, and eccentric circular motion is done in the center of circle of drive activity knife plate 1 relative steel pipe 22, realizes ring cutting.

When shear history, fixing outer cutter 6 and fixing interior cutter 4 are motionless, cutter 9 is made synchronous eccentric rotary with the fixing outer cutter 6 and fixing interior cutter 4 centers of circle in movable outer cutter 8 and the activity, movable outer cutter 8 and fixing interior cutter 4 are formed one pair of shearing blade, cutter 9 and fixing outer cutter 6 are formed another pair shearing blade in movable, when the home position outside the activity cutter 8 and movable in the axle center O ' of cutter 9 overlap with steel pipe axle center O ', when cutter outside the activity 8 and movable in cutter 9 with respect to the steel pipe center O when the A point is made eccentric rotary, movable outer cutter 8 is cut outside to inside from steel pipe, cutter 9 is then cut from introversion and extroversion in movable, along with the continuous incision of outer cutter 8 of activity and movable interior cutter 9, finish whole shearing work to steel pipe 22.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. steel pipe girdling machine, comprise a type frame, one is movably set in the fixedly movable knife plate between the knife plate and movable blade plate holder plate, and one penetrates the interior cutter of steel tube inner hole, it is characterized in that: described fixedly knife plate and movable blade plate holder plate are fixedly mounted in the type frame; Described fixedly knife plate, movable knife plate and movable blade plate holder plate center offer and hold centre bore I, II, the III that steel pipe passes; Cutter in fixing interior cutter and the activity is installed on the cutter in described.

2. steel pipe girdling machine according to claim 1 is characterized in that: be installed among the fixing knife plate centre bore I and with movable in cutter form the fixing outer cutter of one pair of shear blade.

3. steel pipe girdling machine according to claim 1 is characterized in that: be installed in the II centre bore of movable knife plate and with fixing in cutter form the movable outer cutter of one pair of shear blade.