CN2215369Y

CN2215369Y - Internal burring device for straight welding seam pipe

Info

Publication number: CN2215369Y
Application number: CN 95205915
Authority: CN
Inventors: 张小建; 马占昌
Original assignee: Xi'an Heavy-Duty Machinery Inst Ministry Of Machine Building
Current assignee: Xi'an Heavy-Duty Machinery Inst Ministry Of Machine Building
Priority date: 1995-03-21
Filing date: 1995-03-21
Publication date: 1995-12-20
Anticipated expiration: 2005-03-21

Abstract

The utility model belongs to the auxiliary processing field of a straight welding seam pipe, relating to a device for removing the inner burr of a welding pipe and mainly comprising a cutter rod, a floating roller wheel and a cutter which are installed on the cutter rod, wherein, the cutter adopts a circular ring cutter deflecting to one side, and the circular ring cutter is arranged in a cutter seat by a movable fit form. Thus, when the inner burr is pulled and cut, the circular ring cutter is slightly rotated by a circumferential component force, and then cutting chips can be conveniently discharged through the inner hole of the circular ring cutter.

Description

Internal burring device for straight welding seam pipe

The utility model belongs to the secondary process device of metal welded tube, and specifically a kind of ERW removes the internal hair thorn device.

For the higher ERW of some quality requirements, as truck drive shaft etc., all require to remove the welding burr on the inner wall of welded pipe, this work is normally carried out synchronously with welding, i.e. and side weld connects, and burr is removed on the limit.Existing ERW adopts the method for broaching that interior burr is cut away more, and its device is that a knife rest is installed in welded tube, and knife rest is provided with the unsteady running roller that forces in tube wall, and cutter is equipped with in the knife rest end.The unsteady running roller of this device provides a pressure by hydraulic cylinder, structure more complicated not only, and the undesirable leakage situation of people takes place easily.In addition, the cutter of this device is fixed on the knife rest, and the smear metal degree of depth is difficult to adjust, and particularly relatively difficulty is got rid of in chip breaking.

Task of the present utility model provides a kind of simple in structure, and be easy to chip removal ERW remove the internal hair thorn device.

The solution that realizes the utility model task is: the internal hair thorn device that goes of the ERW that is provided has a knife bar, and knife bar is provided with the unsteady running roller that forces in inner wall of welded pipe, and cutter is equipped with in the knife bar end.Improvements of the present utility model are that said cutter is an annulus cutter, and this annulus cutter is by being contained in the tool rest movingly, and from knife bar axially, this annulus cutter is oblique to a lateral deviation.When welded tube when knife bar moves, the interior burr on the welded tube is just cut away with broaching layout by the annulus cutter, and smear metal is just discharged from the endoporus of annulus cutter.Because the annulus cutter is oblique to a lateral deviation, so the annulus cutter will be subjected to a circumferential component during broaching, in tool rest, rotate thereby drive the annulus cutter, so not only more help chip removal, but also can improve the duty of cutter.

The utility model is owing to adopt the annulus cutter, so chip removal is convenient, and the annulus cutter will rotate voluntarily when work, the each point on the blade be taken turns to operate, thereby can improve the service life of cutter, and the replacing of cutter is also more convenient.

Fig. 1 is a structure chart of the present utility model.

Fig. 2 is that the A of Fig. 1 is to partial view.

As shown in Figure 1: knife bar 1 is provided with two fixedly 2,3 and two unsteady running rollers 4,5 of running roller.Unsteady running roller is installed on the slide 6, between slide 6 and the knife bar 1 is to link by spring 7 and the spring base 8 that connects firmly on knife bar.For ease of regulating spring power, spring base 8 joins threadably and is connected on the knife bar.The tool rest 10 that one hollow is arranged in the end of knife bar, interior dress annulus cutter 9.Screw 11 is used for the axial location of annulus cutter.Between annulus cutter and tool rest for being slidingly matched, and the angle [alpha] that offseted to one side, as shown in Figure 2, this offset angle is preferably 2 °～3 °, can make the annulus cutter produce little rotation like this when work.

Claims

1, a kind of ERW removes the internal hair thorn device, has a knife bar (1), knife bar is provided with the unsteady running roller (4,5) that forces in inner wall of welded pipe, cutter is equipped with in the knife bar end, it is characterized in that said cutter is an annulus cutter (9), this annulus cutter (9) is by being contained in movingly in the tool rest (10), and from knife bar (1) axially, this annulus cutter (9) is oblique to a lateral deviation.

2, the internal hair thorn device that goes according to claim 1 is characterized in that annulus cutter (9) is 2 °-3 ° to the skew angle of a side.

3, the internal hair thorn device that goes according to claim 1 and 2 is characterized in that said unsteady running roller (4,5) is contained on the slide (6), links by spring (7) and the spring base (8) that connects firmly on knife bar between slide (6) and the knife bar (1).