CN2101539U

CN2101539U - Cutting device for pipe orifice

Info

Publication number: CN2101539U
Application number: CN 91213165
Authority: CN
Inventors: 马志高; 徐光兴; 杨桂林; 徐远声
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-02-05
Filing date: 1991-02-05
Publication date: 1992-04-15

Abstract

The utility model relates to a cutting device for a pipe orifice, which is composed of a main engine piece 6, a cutter 5, a cutter compacting pen 7, a guiding piece 3, a clamp nut 8 and a fixed bolt 1. The utility model is characterized in that the cutter 5 is installed in a knife slit 4 which is arranged on the main engine piece 6. The cutter compacting pen 7 is impacted on the main engine piece 6 with the clamp nut 8. The guiding piece 3 is fixed on the main engine piece 6 by the fixed bolt 1 to impact the cutter. The device has the advantages of high cutting efficiency, smooth chamfering surface, easy weld, no dust, low acoustic pollution, etc. compared with a grinding-wheel dressing machine for machining pipe orifice chamfering. The utility model can be widely used for processing the chamfering of a boiler pipe orifice and other pipe orifice which requires chamfering.

Description

Cutting device for pipe orifice

The utility model relates to the mouth of pipe topping machanism in a kind of field of machining.

At present, pipeline welding is the welding of boiler tubing particularly, in order to guarantee enough weld strengths, generally all adopts the emery wheel angle lap machine to polish, and wears into the chamfering of 120 degree in the port of pipeline, then with involutory welding of two pipes.The shortcoming that adopts the polishing of emery wheel angle lap machine is polishing time long (generally needing 6-8 minute), because grinding wheel graininess is inhomogeneous, after the mouth of pipe polishing, the coarse injustice of fillet surface, fineness is not high, and the polishing after end face easily produce canine tooth shape breach, cause end face to be uneven, when the involutory welding of two pipes, the weld bond injustice is unfavorable for the raising of welding quality, and when work cutting sand grains dust can influence the physical and mental health of human body, and work noise is big, produces noise pollution.

The purpose of this utility model is a kind of mouth of pipe topping machanism that designs at the deficiency of above-mentioned emery wheel angle lap machine.

Technical solution of the present utility model is as follows:

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is a main body assembly structure schematic diagram of the present utility model.

Among the figure, the 1st, set bolt, the 2nd, pad, the 3rd, guide, the 4th, cutter groove, interior dress blade 5,6th, main frame spare, the 7th, blade pressing circle, the 8th, clamp nut, the 9th, driving machine joint.

Fig. 2 is two views of main frame spare 6, and Fig. 3 is that its axle cuts open figure.In Fig. 2, end at main frame spare 6 is a face of cylinder 10, having angle on the one end is the round table surface 17 of 120 degree, on round table surface 17, have an odd number cutter groove 4 that (causing few 3) is symmetrically distributed, what provide among the figure is three, can load onto the blade 5 that conforms to cutter groove 4 sizes that is shaped as cuboid in cutter groove 4.Blade 5 is θ with the angle of the end face on the face of cylinder 10, is adding man-hour for making blade 5, and the pipe fillet surface that cuts is 120 degree, and the value of θ is 81 degree.When cutting needs the pipe of other chamfering value, change the fluting direction of groove 4, change the θ value and get final product.In Fig. 3, the other end on the face of cylinder 10 is a round table surface 11, and what join with round table surface 11 is three grades of faces of cylinder 12,13 and 16, has screw thread on the face of cylinder 12.Have shoulder hole 14 and 15 in an end round table surface 17 of main frame spare 6,15 inwalls are threaded in the hole.

Fig. 4 is the front view of guide 3.The one end is a face of cylinder 18, and the aperture of the circular hole 14 in the external diameter on the face of cylinder 18 and the main frame spare 6 is identical.What join with the face of cylinder 18 is a round table surface 19, has identical 120 degree that are of angle of round table surface 17 in its angle and the main frame spare 6.Its other end is the face of cylinder 20, has through hole in guide 3 inside, and the aperture of the circular hole 15 in its aperture and the main frame spare 6 is identical.

Fig. 5 is two views of clamp nut 8, and the external diameter on the face of cylinder 12 on the diameter of its nut bore and the main frame spare 6 is identical, and Fig. 6 is the axle cutaway view of blade pressing circle 7.Have round table surface 21 in the one end, its angle is identical with the angle of the round table surface 11 of main frame spare 6, is 120 degree, has through hole 22 in round table surface 21, and its aperture is identical with the external diameter on the face of cylinder 12 of main frame spare 6.

When assembling, on main frame spare 6, put earlier blade pressing circle 7, because the angle of its round table surface 21 is identical with round table surface 11 angles of main frame spare 6, compacting ring 7 will be pressed on the round table surface 11 of main frame spare 6.Load onto clamp nut 8 then, along the screw thread on the face of cylinder 12 nut 8 is tightened, this moment, compacting ring 7 was pressed on the main frame spare 6, with support blade 5.In insert groove 4, load onto blade 5 again, then the face of cylinder 18 of guide 3 is inserted in the circular hole 14 of main frame spare 6, its round table surface 19 will be pressed on the blade 5 this moment, and then, shell tool 2 on the end face on its other end face of cylinder 20, insert set bolt 1 along its circular hole again, pass the circular hole 14 on guide 3 and the main frame spare 6, be tightened in the circular hole 15, guide 3 is compressed, to compress blade 5, be fixed.When processing operation, the face of cylinder 16 of main frame spare 6 and the power output shaft (as motor reel) 9 of driving machine are joined, one end of its tape guiding piece 3 is stretched in the pipe that needs processing, turn on the power, then blade can carry out machining by specified rotating speed.

Mouth of pipe chamfering is easy to control when the utility model has the advantages that cutting, and fillet surface is smooth, make weld bond evenly level and smooth, can improve welding quality, its stock-removing efficiency height, the mouth of pipe of cutting Dg40 only needs 0.5-1.0 minute, and the no dust of processing, noise pollution is little, can be widely used in the pipeline processing of boiler mouth of pipe chamfering and other need chamfering.

Claims

1, a kind of mouth of pipe topping machanism, form by main frame spare 6, blade 5, blade pressing circle 7, guide 3, clamp nut 8, set bolt 1 etc., it is characterized in that blade 5 is contained in the cutter groove 4 on the main frame spare 6, blade pressing circle 7 usefulness clamp nuts 8 are pressed on the main frame spare 6, the face of cylinder 18 of guide 3 one ends is stretched in the circular hole 14 on the main frame spare 6, the screwed hole 15 that the other end penetrates in the set bolt 1 usefulness main frame spare 6 is fixed, and compresses blade 5.

2, the mouth of pipe topping machanism according to claim 1 is characterized in that the end face angle on the face of cylinder 10 on blade 5 and the main frame spare 6 is 81 degree.