CN200945537Y

CN200945537Y - Deburring knife tool

Info

Publication number: CN200945537Y
Application number: CN 200620045323
Authority: CN
Inventors: 吴文辉; 邓庆
Original assignee: Baoshan Iron and Steel Co Ltd
Current assignee: Baoshan Iron and Steel Co Ltd
Priority date: 2006-08-30
Filing date: 2006-08-30
Publication date: 2007-09-12
Anticipated expiration: 2016-08-30

Abstract

A deburring knife tool comprises a knife body and a knife head, the knife head is arranged on the knife body and the knife head is provided with a cutting face. A knife mouth blunt edge is provided between the cutting face of the knife head and one side of the knife body. An arc-shaped junk slot runs through breadthwise on the cutting face and is parallel to the knife mouth blunt edge with a thickness of 0.5mm to 3 mm. The radium of the arc-shaped junk slot ranges from 1mm to 15mm, and the arc-shaped junk slot has a height of 20mm.The utility model provides a junk slot that runs through the cutting face of the cutting head. When the alloy knife tool scratches the outer burrs, the outer burrs can automatically revolve and can be expelled from the cutting face. The edge parts of the burrs do not harm to the surface of the blades; thereby greatly prolonging the service life of the knife tool.

Description

A kind of deburrer

Technical field

The utility model relates to a kind of cutter, relates in particular to a kind ofly when producing ERW bore ERW, removes the cutter of the outer burr of welded tube.

Background technology

To ERW (Electrical Resistance Welded, electric resistance welding) after the welding of moulding welded tube, burr outside the outside meeting of welded tube body produces, at this moment need to rely on alloy cutter to remove outer burr, burr outside employing two kinds of alloy cutters illustrated in figures 1 and 2 remove usually in actual production at present.

See Fig. 1, wherein Fig. 1 (a) is the front view of existing alloy cutter, and Fig. 1 (b) is a left view, Fig. 1 (c) is a rearview, and this cutter has cutter hub and cutter head 100a, and cutter head 100a is a conical section shape, the one side of the outer burr of its cutting of cutter head is plane 1a, sees Fig. 1 (b).

During burr, outer burr is erect easily or is piled up outside the cutting face of cutter head 100a 1a scrapes high temperature on the welded tube body, and it is not smooth to cause burr to be got rid of, and cutter head is produced continue damage, shortens cutter life.

As shown in Figure 2, be existing another kind of alloy cutter, the cutter head 200a of this cutter also is a conical section shape, by Fig. 2 (b) as seen, the cutting face 1b of cutter head 200a also is a plane, different is with the cutter head of above-mentioned cutter: offer a hemispherical chip area 2b in the centre of cutting face 1b, radian is R2, and such being provided with can make a fraction of burr cutting enter into this chip area 2b.During burr 301a, outer burr is erect easily or is piled up outside the cutting face of cutter head 200a 1a scrapes high temperature on the welded tube body 300a, and as shown in Figure 3, it is not smooth to cause burr to be got rid of, and cutter head is produced continue damage, shortens cutter life.

In addition, the cutter edge of this chip area 2b burr outside scraping is apart from too far away, the shape of hemispherical chip area of holding burr cutting is deep mixed, externally the guidance quality of burr is too poor, therefore, the cutter head of this cutter still can not shorten outer burr automatically, and cutting effect has had some improvement than above-mentioned cutter, but does not still have good cutting effect.The operator constantly goes under the burr hook with hook in practical operation, and there is potential safety hazard in operation and increases labour intensity.

Summary of the invention

The purpose of this utility model is to provide a kind of deburrer, realizes the automatic chip breaking function of outer burr, and prolongs cutter life, reduces operator's labour intensity.

For achieving the above object, a kind of deburrer of the present utility model, comprise cutter hub and cutter head, cutter head is installed on the cutter hub, cutter head has a cutting face, wherein, one side relative with cutter hub on the cutter head cutting face have an edge of a knife root face, laterally run through the arcuation chip area of offering an and adjacency parallel on the described cutter head cutting face with edge of a knife root face.

The width of the edge of a knife root face in described cutter head cutting face is 0.5～3mm, if edge of a knife root face less than 0.5mm, cutting edge is forged a knife easily, if greater than 3mm, outer burr banks out easily, blocks cutter head, cutter is also bad easily.

The radius of the radian of the arcuation chip area in described cutter head cutting face is 1～15mm, if the radius of the radian of chip area less than 1mm, then outer burr is difficult for being fractureed, as radius of the radian heavy rain 15mm, then burr can not curl, the arcuation chip area does not have the effect of chip removal.

The height of the arcuation chip area in described cutter head cutting face is 2～20mm.The design of the height of arcuation chip area generally is that external diameter size and the body wall thickness according to the welded tube body decides, and the thick body of the big body of external diameter is then selected the cutter head use bigger than normal of arcuation chip area height for use when removing its outer burr.

Another side relative with edge of a knife root face on the cutter head cutting face is provided with a cutting edge.

And arranged on left and right sides in the cutter head cutting face respectively has a cutting edge.

Advantage of the present utility model is: the cutter head of cutter partly offers a circular-arc chip area, when cutter scrapes the outer burr of high temperature on the welded tube body, outer burr can rotate in chip area automatically, and discharge by the cutting face, blade face can not damaged by burr limit portion, has prolonged cutter life greatly.

Description of drawings

Fig. 1 a is the front view of existing deburrer.

Fig. 1 b is the left view of existing deburrer.

Fig. 1 c is the rearview of existing deburrer.

Fig. 2 a is the front view of existing another kind of deburrer.

Fig. 2 b is the left view of existing another kind of deburrer.

Fig. 2 c is the rearview of existing another kind of deburrer.

Working state figure when Fig. 3 is the outer burr of the existing deburrer cutting shown in Fig. 2.

Fig. 4 a is the front view of deburrer of the present utility model.

Fig. 4 b is the left view of deburrer of the present utility model.

Fig. 4 c is the rearview of deburrer of the present utility model.

Working state figure when Fig. 5 is the outer burr of deburrer of the present utility model cutting.

The specific embodiment

As shown in Figure 4 and Figure 5, this utility model is made up of cutter hub 2 and cutter head 1, and cutter hub 2 is cylindrical or square column type, and cutter head 1 is a conical section shape.Cutter head 1 has a cutting face 11, one side relative with cutter hub on cutter head cutting face 11 have an edge of a knife root face 13, the width of edge of a knife root face 13 is E.

As shown in Figure 4, laterally run through the arcuation chip area 12 of offering an and adjacency parallel with edge of a knife root face on cutter head 1 cutting face 11, radius of the radian is R1 (referring to chip area place radius of a circle), and the height of this chip area 12 is D.

Shown in Fig. 4 b, another side relative with edge of a knife root face 13 on cutter head 1 cutting face 11 is provided with a cutting edge 14; And arranged on left and right sides in cutter head cutting face 11 respectively has a

cutting edge

15 and 16.

In conjunction with seeing Fig. 4 and Fig. 5, cutter head 1 is outside cutting during burr 31, outside the edge of a knife root face 13 on the cutter head 1 scrapes high temperature on the welded tube body 3 during burr 31, outer burr 31 accumulates in the chip area 12, outer burr 31 rotation automatically curls, and outer burr 31 is to discharge continuously to the cutting face, outer burr can be under the effect of gravity and crimp force chip breaking automatically, blade face can not damaged by outer burr 31 limit portions, prolonged cutter life greatly, the radian R1 of chip area 12 (referring to chip area place radius of a circle) is controlled between 1～15mm, the height D of chip area 12 is controlled between 2～20mm, and edge of a knife root face 13 width E are controlled between 0.5～3mm.

If edge of a knife root face is less than 0.5mm, cutting edge is forged a knife easily, if greater than 3mm, outer burr banks out easily, blocks cutter head, and cutter is also bad easily.

If the radius of the radian of the chip area in cutter head cutting face is less than 1mm, then outer burr is difficult for being fractureed, and as radius of the radian heavy rain 15mm, then burr can not curl, and the arcuation chip area does not have the effect of chip removal.

The height of the arcuation chip area in cutter head cutting face is 2～20mm.The design of the height of arcuation chip area generally is that external diameter size and the body wall thickness according to the welded tube body decides, and the thick body of the big body of external diameter is then selected the cutter head use bigger than normal of arcuation chip area height for use when removing its outer burr.

Use deburrer of the present utility model, the operative employee only need get final product in the side monitoring, needn't stand in the next door and use hook dislocated down-warping burr, has reduced working strength.By statistics, former blade uses after 2 hours continuously and must change, and new-type cutter can be used 3.5 hours continuously, guarantee ERW (ElectricalResistance Welded, electric resistance welding) production line moves continuously, and be complementary with the rhythm of edge milling machines tool changing dish, improved the production efficiency of welded pipe product line.

Claims

1. deburrer, comprise cutter hub and cutter head, cutter head is installed on the cutter hub, cutter head has a cutting face, it is characterized in that:, laterally run through the arcuation chip area of offering an and adjacency parallel on the described cutter head cutting face with edge of a knife root face one side relative with cutter hub on the cutter head cutting face have an edge of a knife root face.

2. deburrer as claimed in claim 1 is characterized in that: the width of the edge of a knife root face in described cutter head cutting face is 0.5～3mm.

3. deburrer as claimed in claim 1 is characterized in that: the radius of the radian of the arcuation chip area in described cutter head cutting face is 1～15mm.

4. as claim 1 or 3 described deburrers, it is characterized in that: the height of the arcuation chip area in described cutter head cutting face is 2～20mm.

5. deburrer as claimed in claim 1 is characterized in that: another side relative with edge of a knife root face on the cutter head cutting face is provided with a cutting edge.

6. deburrer as claimed in claim 1 is characterized in that: the and arranged on left and right sides in the cutter head cutting face respectively has a cutting edge.