KR101645947B1

KR101645947B1 - Welding bead removal device of pipe

Info

Publication number: KR101645947B1
Application number: KR1020150188120A
Authority: KR
Inventors: 조회수
Original assignee: 조회수
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-08-05

Abstract

The present invention provides a pipe inner surface weld bead removing device capable of effectively removing a weld bead formed on the inner surface of a pipe having a short or a small-sized pipe.
In order to achieve the above object, the present invention provides a bed comprising: a bed; a reciprocating unit that is mounted on an upper surface of the bed and reciprocates forward and backward on the bed by the power of a motor provided below the bed; A pressure pad for pressing and fixing the pipe placed on the V-block by a press operation in a state of being held by the carriage at a predetermined distance from the V-block, A bite for removing a weld bead formed on an inner surface of the pipe, the bite being rotatably rotated at the tip of the chuck and moving into the pipe moving forward by the operation of the reciprocating unit, And the bed is moved upward and downward by the power of the lifting cylinder, And that is configured to include a loop and the platform to the chuck center is adjusted to match with the technical gist.

Description

[0001] WELDING BEAD REMOVAL DEVICE OF PIPE [0002]

The present invention relates to a pipe inner diameter welding bead removing device, and more particularly, to a pipe inner diameter welding bead removing device for removing a bead formed in an inner diameter of a pipe by entering a bit- .

Generally, as a method of manufacturing a metal pipe, a flat metal plate is gradually rolled into a round shape while being passed through a plurality of forming rollers, and is rolled into a roll shape. Then, along the contact line of both ends of the rolled plate, Welding is performed by resistance welding or argon-tig welding to complete the pipe, and the pipe is cut to a predetermined length according to the required specifications.

When the pipe is formed in such a manner, weld beads are generated in the longitudinal direction inner and outer surfaces of the welded joint portion of the pipe after the above-described welding operation, so that the worker can manually remove the weld bead or cut using various shapes of bite And grinding with a grinding machine. In general, the weld bead formed on the outer surface is removed by an outer bead cutter or the like, and the weld bead formed on the inner surface is removed using a bead remover having a bite . Most of the bead removers for removing the weld beads in the pipe and the outer face employ roller means for smoothly proceeding the pipe and remove the beads by the relative cutting force due to the progress of the pipe by using the bite mounted on the body portion .

That is, in order to remove the weld bead formed on the inner surface of the pipe, the apparatus with the bite must enter the inner surface of the pipe. In the case of a pipe having a small pipe length or a short pipe, A short-length pipe has a disadvantage in that workability can be reduced by manually removing some work from the outside without entering the bead removal equipment. In addition, since the bead chip cut by the bite at the time of manual operation is small and sharp, Which could lead to safety accidents.

Document 1: Korean Patent Registration No. 10-1513577

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a pipe inner surface weld bead removing device capable of removing a weld bead formed on the inner surface of a pipe having a short pipe length or a small size .

According to another aspect of the present invention, there is provided a pipe inner diameter welding bead removing device for removing a welding bead formed on an inner surface of a pipe by moving the pipe into a high-speed rotating bite while being chucked.

According to an aspect of the present invention, there is provided an apparatus for removing a weld bead formed on an inner surface of a pipe, the apparatus comprising: a bed; a motor mounted on the upper surface of the bed, A V-block disposed on an upper surface of the reciprocating unit for supporting the pipe, a V-block disposed at a predetermined distance from the V-block, and being supported by the reciprocating unit, A pressing unit for pressing and fixing the pipe placed on the V-block, a chuck for rotating at a high speed by the driving power of the driving source located at the opposite side of the bed, a pipe rotatably supported by the tip of the chuck, And a bite for removing weld beads formed on the inner surface of the pipe, And a platform for moving the bed up and down with the power of the elevating cylinder to adjust the center of the pipe and the chuck mounted on the V block to coincide with each other.

The present invention is characterized in that a pipe mounted on a V-block is introduced into a high-speed rotating bite in the state of being chucked, and a weld bead formed on the inner surface of the pipe is removed so that a pipe having a short length or a small- It is possible to effectively remove the weld beads formed on the inner surface.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an entire configuration of a pipe inner surface weld bead removing device according to a preferred embodiment of the present invention; FIG.
Fig. 2 is a front view of Fig. 1; Fig.
Fig. 3 is a view schematically showing the main configuration of Fig. 1; Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following detailed description, only two embodiments of the present invention will be described in order to achieve the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. 3 is a diagram showing the configuration in three dimensions.

1 to 3, the pipe inner surface weld bead removing device 100 of the present invention includes a bed 10, a carriage 20, a V-block 50, a press table 60, a chuck (not shown) 70 and a byte 72. [

The bed 10 is configured to move upward and downward through a height adjusting means 80 which will be described later as a member for supporting the carriage 20, the V-block 50 and the press table 60.

The reciprocating unit 20 is supported by the V block 50 and the presser bar 60 while being mounted on the upper end of the bed 10, And reciprocates forward and backward through the bed 10 by receiving power.

Specifically, a driving pulley 34 is coupled to the shaft of the motor 32. A driven pulley 38 is connected to the driven pulley 34 by a belt 36. A lead screw And a split nut (42) is threadedly coupled to the outer diameter of the lead screw (40), and the split nut (42) The lead screw 40 is moved along the thread of the lead screw 40 in accordance with the rotation of the lead screw 40 in a state of being coupled to the lower end of the lead screw 20,

A guide block 46 is installed at a lower end of the reciprocating unit 20 and the guide block 46 moves along a guide rail 44 provided on the upper surface of the bed 10, It is preferable to guide the movement.

The V-block 50 is a means for supporting the pipe 200 formed on the upper surface of the shuttle 20 and formed in a circular cross-sectional shape and includes a V-shaped groove 52 for supporting the pipe 200 Is formed. At this time, the pipe 200 mounted on the V-block 50 is limited to a small-sized pipe having such a size that a normal welding bead remover can not enter. In addition, the length of the pipe 200 is also limited to the length of the chuck 70 Or less.

The presser bar 60 is moved upward and downward by driving the press 62 in a state where the presser bar 60 is spaced from the V block 50 by a predetermined distance and presses the pipe 200 mounted on the V block 50 Respectively. At this time, the support frame 64 supporting the press table 60 and the press 62 is fixedly installed on the above-described reciprocating stage 20, and presses the pipe 200 in accordance with the operation of the reciprocating stage 20 And reciprocates forward and backward together with the reciprocating carriage 20 in one state.

The chuck 70 is installed at the upper end of the base 74 located on the opposite side of the bed 10 and rotates at a high speed by the power of a driving source installed inside the base 74. The chuck 70 is a member, And a bite 72 is provided at the tip of the bite 72. When the pipe 200 mounted on the V-block 50 is moved forward by the operation of the carriage 20, the bite 72 is inserted into the pipe 200, The weld bead 202 formed on the inner surface of the pipe 200 is removed.

On the other hand, a pipe height adjusting means (80) is further provided at the lower end of the bed (10). The pipe height adjusting means 80 is coupled to a rod 84 of the elevating cylinder 82 and attached to a lower end of the bed 10 to be driven by the elevating cylinder 82, And a platform 86 that moves downward. When the diameter of the pipe 200 raised on the V block 50 is different and the center of the pipe is not aligned with the center of the pipe, the pipe height adjusting means 80 moves the bed upward and downward to place it on the V block of the bed The height of the pipe is adjusted to match the center of the pipe and chuck.

Hereinafter, the operation of the pipe inner surface weld bead removing apparatus according to the present invention will be described with reference to FIGS. 1 to 3. FIG.

The metal plate is formed into a roll-shaped pipe 200 while passing through a plurality of forming rollers, and then the contact lines at both ends of the formed pipe 200 are welded to form the pipe 200 first , The formed pipe 200 is formed into the finished product pipe 200 by removing the inner weld bead 202 through the pipe inner surface weld bead removing device of the present invention.

Specifically, the pipe 200 for removing the weld bead 202 is placed on the V block 50, and then the elevation cylinder 82 as the pipe height adjusting means 80 is driven to move the bed 10 upward and downward So that the center of the pipe 200 mounted on the V-block 50 and the center of the chuck 70 are aligned exactly with each other.

Next, when power is applied to the motor 32, the reciprocating unit 20, which has received the power of the motor 32, moves forward, and the pipe 200 mounted on the V block 50 is transferred to the chuck 70 And is moved forward by the bite 72.

The pipe 200 is moved forward to move the bite 72 to the inside of the pipe 200 while the bite 72 held at the chuck 70 rotates at a high speed, The weld bead 202 formed on the inner surface of the bobbin 202 is removed by the bite 202 and molded into a finished product pipe.

10: Bed 20: Shuttlecock
50: V block 60:
70: Chuck 80: Pipe height adjusting means

Claims

A pipe inner surface weld bead removing device for removing weld beads formed on an inner surface of a pipe,
A bed 10;
A carriage 20 mounted on the upper surface of the bed 10 and moving back and forth on the bed 10 by the power of a motor 32 installed under the bed 10;
A V block 50 installed on the upper surface of the reciprocating table 20 to support the pipe 200;
The pressure of the pressure of the pipe 200 which is placed on the V-block 50 by the operation of the press 62 in a state of being separated from the V-block 50 by a certain distance and supported by the reciprocal 20, (60);
A chuck (70) located at the opposite side of the bed (10) and rotating at high speed with the power of the driving source;
The welding bead 202 formed on the inner surface of the pipe 200 enters the inside of the pipe 200 which is rotated by the tip of the chuck 70 and moves forward by the operation of the reciprocating unit 20, Removing bytes 72;
The pipe 200 installed on the V block 50 and the chuck 70 installed on the V block 50 by moving the bed 10 upward and downward by the power of the lifting cylinder 82, And a platform (86) for adjusting the center of the pipe inner diameter welding bead to match the center of the pipe inner diameter welding bead.