CN2386912Y

CN2386912Y - Centrifugal pressuring planetary rotation high speed pipe cut-off appts.

Info

Publication number: CN2386912Y
Application number: CN 98246849
Authority: CN
Inventors: 曹小维
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-23
Filing date: 1998-11-23
Publication date: 2000-07-12
Anticipated expiration: 2008-11-23

Abstract

The utility model relates to a centrifugal pressuring planetary rotation high speed pipe cut-off apparatus, which comprises a flanged main shaft (1), a weight (2), a rocker (3), an upper limiting pin (4), a lower limiting pin (5), a pin shaft (6), a circular cutter (7), a rotary pivot (8) and a tension spring (9). The pipe cut-off apparatus can cut off polygonal pipes and the cut-off pipe is provided with no burr fins. The utility model has the advantages of high cut-off speed, less abrasion of the cutting tool, simple grinding, low noise in cutting the pipe and less cutting particles. The utility model is convenient to the automated pipe cut-off work, is suitable for the welded tube production line and is also used for cutting off the general pipes.

Description

Centrifugal force pressurization planet gyration formula high speed tubing shearing device

The utility model relates to a kind of and the supporting special-purpose tubing shearing device of cutting machine.

In the manufacturing and application of tubing, all exist the problem that tubing cuts off, the ideal requirement that tubing is cut off is: the high-quality fracture that does not have burr, overlap.Existing tubing cut-out technology mainly contains: the one, use grinding wheel.This method exists the grinding wheel loss and produces emery wheel dust and ear-piercing noise greatly, inevitably, especially it is very undesirable to be cut off the tubing section, sharp burr and overlap are arranged, and the color and luster of section also needs to increase the postprocessing working procedures of one removal burr also because of friction heating variable color.The 2nd, use saw blade.With adopting emery wheel to compare, this method can obtain more satisfactory section, does not also have too big burr and overlap.But noise is big, the cutting particle is arranged, the saw blade rotating speed can not be too high, labor productivity is low, and especially disadvantageously, saw blade is after using, and the sawtooth rust that can shorten need regrinding just can reuse, and the saw blade regrinding needs special equipment, and cost height, operation are also complicated.The 3rd, use the disc cutting knife, promptly as the method for common cut-out running water pipe, have manually, also have electronic, can obtain more satisfactory fracture, tool abrasion is also minimum.But known method is manually to turn the feeding that screw rod is realized cutting knife, and efficient is lower, and this has limited its sphere of action greatly, also is unfavorable for automation operation in enormous quantities.Especially when processed tubing can't rotate, be difficult to adopt electric driving method.In addition, this method is cut off pipe only, can't cut off the polygon tubing of on-circular cross-section.

The purpose of this utility model provides and a kind ofly realizes automation operation in enormous quantities, to there is not the harsh high speed tubing shearing device that limits, can obtain the high-quality fracture by Pipe Cutting material cross sectional shape.

The utility model is a kind of centrifugal force pressurization planet gyration formula high speed tubing shearing device, comprise power transmission and processing tubing device, this device main body is a flange main shaft, on flange main shaft operative end surface, radially be provided with hinge, fork is installed on the hinge, and fork is equipped with pouring weight, to an end of flange spindle axis round cutting-off tool is installed to an end of flange main shaft periphery.The upper arresting pin and the lower limit pin that are positioned at the fork both sides, the swing displacement of fork is limited also are installed on flange main shaft operative end surface, and the tension spring that an end is fixed on the fork between hinge and the round cutting-off tool, the other end is fixed on flange main shaft operative end surface.Wherein, the flange main shaft is hollow, and tubing to be cut passes therethrough.The centrifugal cutting blade assembly of being made up of pouring weight, fork, upper arresting pin, lower limit pin, bearing pin, round cutting-off tool, hinge, tension spring is evenly distributed on flange main shaft operative end surface.

Compared with prior art, the utility model is simple in structure, can realize cutting off and obtaining at a high speed high-quality fracture; Cutter is not easy to wear, and its regrinding only needs common cylindrical grinder, need not special regrinding equipment, can not resemble saw blade or emery wheel causes environmental pollution yet; Be convenient to automated job, can cut off the polygon tubing of pipe and even on-circular cross-section; Be particularly suitable for the occasion that some restriction tubing rotate, as welded pipe product line.

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

Accompanying drawing 1 is that the utility model assembly master looks schematic diagram; Accompanying drawing 2 is that schematic diagram is looked on the utility model complete section left side; Accompanying drawing 3 is front view A-A revolved section schematic diagrames; Accompanying drawing 4 is that left view B is to schematic diagram.

With reference to accompanying drawing.Power is the dynamic balancing that guarantees the flange main shaft, the balance of guaranteeing cutting-off process from driving the belt pulley input of hollow flange main shaft 1, and several groups of identical centrifugal cutting blade assemblies are circumferentially arranged on flange main shaft operative end surface symmetrically and evenly.This assembly number of arranging is many, and break time is then short, otherwise the time is then long.Bearing pin 6 is fixed on the fork 3, and round cutting-off tool 7 is sleeved on the bearing pin, adopts matched in clearance, so that round cutting-off tool rotates, but will be limited its axial float.The hinge 8 that fork is installed is fixed on flange main shaft operative end surface, adopts matched in clearance, so that fork rotates, also will control axial float.Pouring weight 2 positions that are positioned on the fork are adjustable, to reach the purpose of adjusting the centrifugal force size.Tension spring 9 keeps to fork all the time that suitable pulling force---round cutting-off tool separates fully with tubing 10 to be cut when both guaranteeing not carry out rupturing operation, guarantee again that in cutting-off process pulling force is not enough to offset the pressure of centrifugal force to forming between round cutting-off tool and the tubing that pouring weight produces.The upper arresting pin 4 on the flange main shaft operative end surface and the position of lower limit pin 5 are adjustable, so that cut off different tubing.No longer deep behind the upper arresting pin assurance round cutting-off tool cut-out tubing; It is too far away that the lower limit pin guarantees that when not carrying out rupturing operation round cutting-off tool leaves tubing to be cut.

During use, tubing to be cut is fixed on hollow flange spindle axis place, and round cutting-off tool is treated the cutting-off process of Pipe Cutting material, exactly under the drive of the flange main shaft that is rotating, round cutting-off tool not only around tubing revolution to be cut, but also around the planetary motion process of bearing pin rotation.When moving in a circle, the centrifugal force that pouring weight produces forms moment by hinge round cutting-off tool is pressed on the tubing to be cut all the time.In whole cutting-off process, the feeding of round cutting-off tool is to realize by the pressure that centrifugal force causes, rather than resembles the mechanical type feeding that common pipe installation adopts screw rod and so on.As the latter being called " rigidity feeding " or " rigidity is sealed ", feeding mode then of the present utility model is exactly " flexible feeding " or " flexible sealed ".In cutting-off process, as it is excessive to be subjected to resistance, and round cutting-off tool can quick rebound, so the utility model also can cut off on-circular cross-section tubing at a high speed.The cut-out mode of the structure of symmetrical balance, planetary motion, add discoid cutting knife, guaranteed that the utility model can bear higher rotation speed and noise is low; Round cutting-off tool with sharp sword circumference has guaranteed that the end face of cutting back tubing does not have burr, overlap, and the cutting particle is few.

Claims

1, a kind of centrifugal force pressurization planet gyration formula high speed tubing shearing device, comprise power transmission and processing tubing device, it is characterized in that this device main body is a flange main shaft (1), on flange main shaft operative end surface, radially be provided with hinge (8), fork (3) is installed on the hinge, and fork is equipped with pouring weight (2), to an end of flange spindle axis round cutting-off tool (7) is installed to an end of flange main shaft periphery.

2, tubing shearing device as claimed in claim 1, it is characterized in that also being equipped with on the flange main shaft operative end surface upper arresting pin (4) and the lower limit pin (5) that are positioned at the fork both sides, the swing displacement of fork is limited, and the tension spring (9) that an end is fixed on the fork between hinge and the round cutting-off tool, the other end is fixed on flange main shaft operative end surface.

3, tubing shearing device as claimed in claim 1 or 2 is characterized in that the flange main shaft is hollow, and tubing to be cut passes therethrough.

4, tubing shearing device as claimed in claim 1 or 2 is characterized in that being evenly distributed on flange main shaft operative end surface by the centrifugal cutting blade assembly that pouring weight (2), fork (3), upper arresting pin (4), lower limit pin (5), bearing pin (6), round cutting-off tool (7), hinge (8), tension spring (9) are formed.