KR101862315B1

KR101862315B1 - Multi chamfering device for pipes

Info

Publication number: KR101862315B1
Application number: KR1020160175525A
Authority: KR
Inventors: 김상권
Original assignee: 김상권
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2018-07-05

Abstract

The inner and outer diameter composite chamfer of the present invention is a composite chamferer capable of simultaneously chamfering inner and outer diameters of one end of a pipe. The present invention includes a holder having a through-hole formed along the center line and having an inlet larger in diameter than the through-hole so as to be inserted into the one side of the through-hole, at least one outer tool thread tool mounting portion formed from an outer circumferential surface of the holder so as to reach the introduction port, an inner surface cutting tool inserted into the through hole from the other side of the holder to be fixed to the holder and having an inclined inner surface formed at a position adjacent to the outer surface tool mounting portion, an outer surface boring tool inserted and fixed in the outer surface boring tool mounting hole and formed with an outer beveled surface inclined to chamfer the outer diameter of the pipe, a bolt hole formed on one side of the holder and adapted to engage with a bolt for fixing an outer tool to be inserted into the outer tool, and one or more chip outlets formed to reach the inlet from an outer surface of the holder adjacent to the outer wicket tool mounting hole.

Description

{Multi chamfering device for pipes}

The present invention relates to a combined chamfer for an inner diameter and an outer diameter chamfer on the end side of a pipe-like material having a hollow portion.

When machining a metal material, the end of the machined surface is generally sharpened, leaving fine chips that have not been dropped. Pipe-like materials are also cut to an appropriate length according to need, and the cut ends inevitably require post-treatment of the cut ends.

Failure to post-process the machined surface, such as the cut surface, may be a factor that may jeopardize the safety of the operator, and may lead to deterioration in workability or generation of defective products during the welding operation.

Therefore, chamfering treatment for outer diameter, inner diameter and cross section should be performed after machining such as cutting.

When the inner diameter, the outer diameter and the end portion of the end of the pipe are usually taken, the cutting bite is fixed to a device such as a lathe, and chamfering is performed while rotating the pipe. If a conventional bite is used, chamfering for the inner diameter, outer diameter, and end portions can not be performed at the same time, and individual chamfering is required for each portion, which is time consuming and low productivity.

Particularly, the cross section and chamfering of the elongated tubular pipe such as seamless pipe are difficult to fix and rotate the pipe, which makes it difficult to process the cut surface.

As a conventional technique for recognizing and improving such a problem, there is known a "tool for simultaneously grinding the inner diameter and the outer diameter of a pipe-shaped material " in Korean Utility Model Registration No. 20-0330637.

FIG. 1 is a schematic view of a front and a side of a tool according to the prior art, showing a first cutting tip 30 for chamfering the outer diameter side of the work, as well as a cutting edge of a first A second cutting tip 20 disposed at an angle to chamfer the inner diameter of the workpiece and a holder 13 in which the first cutting tip 30 and the second cutting tip are disposed.

The prior art tool has a problem that a lathe must be used by fixing a holder to a tool holder of a lathe, and there is a limit in that inner diameter and outer diameter chamfering can be performed at the same time, but section chamfering can not be performed.

Korean Registered Utility Model No. 20-0330637

Therefore, in the present invention, it is desired to provide a combined inner and outer diameter combing machine that can be easily mounted on a small power tool such as a hand drill as well as a general cutting tool to easily chamfer inner diameters, outer diameters, and cross sections of pipes.

Also, it is an object of the present invention to provide a pipe inner-outer-diameter combiner capable of facilitating adjustment and replacement of an inner-surface boot tool and an outer-surface tool.

In order to achieve the above-mentioned object, the present invention provides a combined chamfering machine capable of simultaneously chamfering inner and outer diameters of one end of a pipe, a through-hole is formed along the center line, A holder in which an inlet having a larger diameter than the through-hole is formed coaxially with the through-hole so that the pipe can be inserted; at least one outer-surface wick tool mounting means formed from an outer peripheral surface of the holder so as to reach the inlet; An inner surface cutting tool inserted into the through hole from the other side to be fixed to the holder and being inclined at a position adjacent to the outer surface tool attaching hole; An outer surface forming tool formed on one side surface of the holder, A bolt hole formed so as to engage with a bolt for fixing an outer surface heating tool inserted into the mounting hole and at least one chip outlet port formed adjacent to the outer surface tool mounting hole so as to reach the inlet from the outer surface of the holder. do.

Preferably, an end face cutting edge is formed in parallel with the center axis of the outer face wicking tool so as to be parallel to the outer face wicking face, so that both the end face and the outer face of the pipe can be simultaneously worn.

Preferably, the inner surface heating tool is formed with a protruding guide protruding forward of the inner surface of the inner surface and being insertable into the inner surface of the pipe.

The present invention has the effect of simultaneously chamfering inner diameter, outer diameter, and cross section of a material such as a small pipe with high efficiency through a relatively simple structure.

Further, since the present invention can be used by attaching a holder to a portable power tool such as a hand drill, it can be used as a field combiner.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a tool according to the prior art, front and side. Fig.
Fig. 2 is a schematic exploded perspective view of a pipe-inside-outside-diameter composite beaker according to the present invention; Fig.
3 is an assembled perspective view of an inside-outside-diameter complex face take-up device in a pipe.
4 is a sectional view of the holder;
5 is a side view of the holder.
6 is a side view of an external wing tool;
7 is a side view of the inner wicking tool.
Fig. 8 shows an example of the use of the inner diameter blending machine in the pipe of the present invention. Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings. It should be understood, however, that the drawings and detailed description thereof illustrate one feasible example according to the technical idea of the present invention, and the technical scope of protection of the present invention is not limited thereto.

FIG. 2 is a schematic exploded perspective view of the inside and outside diameter composite duplexer in accordance with the present invention, FIG. 3 is an assembled perspective view of the inside diameter pipe, FIG. 4 is a sectional view of the holder, Fig. 6 is a side view of the outer surface wicking tool, Fig. 7 is a side view of the inner surface wicking tool, and Fig. 8 is an example of the use of the inner diameter wicking device of the present invention.

As shown in the figure, the inner and outer diameter composite chamfer of the present invention includes a holder 100, an outer wicking tool mount 200, an inner wicking tool 300, and an outer wicking tool 400 as main components.

The holder 100 is formed with a through-hole 110 having a cylindrical shape and opened from one side to the other side along the center line L. The holder 100 has a through hole 110 on one side, A sphere 120 is formed.

The introduction port 120 is formed to be larger in diameter than the through-hole 110, and the through-hole 110 and the introduction port 120 are coaxial.

At the outer circumferential surface of the holder 100, at least one outer surface wrench tool mounting hole 200 is provided to reach the inlet port 120. The outer wicking tool mounting hole 200 is formed to be perpendicular to the inlet 120. In this embodiment, two outer wicking tool mounting holes 200 are formed so as to face each other.

An outer surface wand 400 is inserted and fixed to the outer surface wrench attachment 200. The outer surface woofer 400 is formed with an outer wedge 410 that is inclined so that the outer diameter of the pipe P can be chamfered. More preferably, the outer surface heating tool 400 can be machined (chamfered) at the same time as the outer surface.

To this end, an end face cutting edge 420 is formed successively to the outer face worm 410 in parallel with the center axis of the outer face wrench 400 so that the outer face of the pipe P and the chamfered face can be simultaneously formed.

A bolt hole 130 is formed at one side of the holder 100 to fix the outer surface tool 400 to be fitted to the outer surface tool holder 200. The bolt 140 is used to fix the outer surface tool 400 So that it can be fixed. The bolt hole 130 is formed so as to reach from the one side of the holder 100 to the outer side boring tool mounting hole 200.

When the end of the pipe P to be chamfered is inserted through the introduction port 120 after the outer surface heating tool 400 is fixedly connected to the holder 100, the outer diameter end of the pipe P is brought into contact with the outer forehead tip 410 When the pipe P is taken out of the outer diameter, the end face of the pipe P comes into contact with the end face cutting edge 420 and the end face is also machined.

The inner surface wicking tool 300 is provided for inner diameter chamfering of the pipe P from the other side of the holder 100, that is, the opposite side of the inlet port 120, through the through hole 110 And is fixedly connected to the holder 100. The inner bellows 310 formed on the inner bellows tool 300 is positioned adjacent to the outer bellows tool mount 200 on which the outer bellows tool 400 is mounted and the inclined inner bellows 310 is positioned on the inner diameter Thereby making contact with the end portion.

When the pipe P to be machined is pushed into the inlet 120 after the outer surface wool tool 400 and the inner surface wool tool 300 are fixedly connected to the holder 100, the outer diameter and inner diameter end of the pipe P, respectively, The outer diameter of the holder 100 is contacted with the inner surface 410 of the pipe 100 and the inner diameter of the holder 100 is made to be the outer diameter of the pipe 100 while the pipe P is fixed. The end face of the pipe P can be chamfered by the end face cutting blade 420 when the pipe P further enters the introduction port 120. [

If chamfering of the outer diameter, inner diameter and cross section of the pipe (P) is performed at the same time, cutting chips are generated.

And one or more chip outlets 150 leading to the inlet 120 are formed on the outer surface of the holder 100. The chip discharging port 150 is formed adjacent to the outer wicking tool mounting port 200. In this embodiment, the two chip discharging ports 150 are formed with holes larger than the outer wicking tool mounting port 200. [

The protruding guide 320 is inserted into the inner diameter surface of the pipe P inserted into the introduction port 120. The protruding guide 320 is inserted into the inner diameter surface of the pipe P . As the protrusion guide 320 is inserted into the inner diameter of the pipe P, the center of the pipe can be precisely caught, and cutting chips generated during processing can be prevented from flowing into the pipe.

When the standard of the pipe to be chamfered is changed, the inner and outer chambers 300 and 400 should be set to be changed. Preferably, when replacing the inner chambers 300 and the outer chambers 400, The completed pipe sample is inserted into the holder 100 and the inner surface wool tool 300 and the outer surface wool tool 400 are put in position so that the inner surface of the bellows 310 and the outer bellows 410 are brought into contact with the pipe sample .

INDUSTRIAL APPLICABILITY As described above, the inner and outer diameter composite chamfer of the present invention has an advantage of being able to simultaneously perform inner diameter, outer diameter and cross section chamfering at the end of the pipe, and is particularly suitable for chamfering such as a small diameter pipe.

That is, in the case of a pipe having a small diameter, it is difficult to work on a chuck of a lathe and it is difficult to work and the work efficiency is also inferior. However, when the combined chamfering machine of the present invention is attached to a hand drill, .

The inner and outer diameter composite chamfer according to the present invention is suitable for use in pipe chamfering of small diameter.

100: Holder
110: through hole 120: introduction hole
130: Bolt hole 140: Bolt
150: chip outlet
200: Exterior wicking tool mounting hole
300: Inner wool tool 310: Inner wool
320: Extrusion Guide
400: Outside Wear Tool 410: Outside Wear
420:
L: Center line
P: pipe

Claims

1. A compound beaker, which is capable of simultaneously chamfering inner and outer diameters of one end of a pipe,
A holder having a through hole formed along the center line and having an inlet having a diameter larger than that of the through hole so as to be inserted into a side of one side thereof coaxial with the through hole;
At least one outer surface wick tool mounting portion formed from an outer peripheral surface of the holder so as to reach the introduction port;
An inner surface wiping tool inserted into the through hole from the other side of the holder to be fixed to the holder and having an inclined inner surface formed at a position adjacent to the outer surface tool w /
An outer surface wiping tool inserted into and fixed to the outer surface wrench tool mounting hole and having an outer wedge inclined to chamfer the outer diameter of the pipe;
A bolt hole formed on one side of the holder and adapted to engage with a bolt for fixing an outer tool to be inserted into the outer tool insert;
And one or more chip outlets formed to reach the inlet from an outer surface of the holder adjacent to the outer surface drill tool mounting port.

delete

The method according to claim 1,
Wherein an end face cutting edge is formed in parallel with the center axis of the outer surface wrench so as to be continuous with the outer face worm edge so that both the end face and the outer face of the pipe can be simultaneously formed.

The method according to claim 1,
Wherein the inner surface heating tool comprises:
Wherein a protruding guide protruding forward of the inner surface of the inner wing and capable of being inserted into the inner surface of the pipe is formed.