WO2020032461A1

WO2020032461A1 - Pipe machining apparatus

Info

Publication number: WO2020032461A1
Application number: PCT/KR2019/009489
Authority: WO
Inventors: 김기년
Original assignee: 김기년
Priority date: 2018-08-10
Filing date: 2019-07-30
Publication date: 2020-02-13

Abstract

The present invention relates to a pipe machining apparatus for easily machining a connecting portion of a metal pipe, the pipe machining apparatus according to the present invention comprising: a mounting unit for horizontally fixing a metal pipe, wherein the mounting unit moves forward and backward together with the metal pipe; and a machining unit having a projection formed to be inserted into the metal pipe and an accommodating recess formed on the outer circumference of the lower portion of the projection to accommodate and contact one end of the metal pipe, wherein the machining unit heats, by rotation, the one end of the metal pipe accommodated in the accommodating recess and presses the metal pipe toward the accommodating recess so that the one end of the heated metal pipe is bent outwards.

Description

Pipe processing equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe processing apparatus, and more particularly, to a processing apparatus capable of easily processing a joining portion of a metal pipe.

In general, pipes used for transporting a fluid such as water, oil, gas, etc. have a limited length, so that a flange is formed at a connecting portion to continuously connect the pipes, and the flanges are connected to each other using a connecting member. In addition, a variety of methods are applied, such as welding the connection, telescopic movement, and compression. In the case of welding and connecting pipes, a professional welder is required for the work and heat deformation may occur in the pipes. In addition, in the case of the telescopic movable type, the packing is inserted into the two pipe bodies to be connected and the nut is compressed, but the ball is inserted into the pipe pipe to prevent the pipe from coming off. There is a problem that deposits accumulate. In addition, in the case of the crimping type, there is a problem that the pipe deformation occurs by inserting the pipe into the connection member and compressing the packing together with the stainless ring using a separate compressed air hole.

Due to these problems, a method of joining the connection member by processing the coupling portion of the pipe has recently been proposed. However, the conventional processing method is to compress the coupling portion of the pipe after fixing the pipe to process the coupling portion. This conventional processing method is difficult to machine the pipe over a certain length because of the limitation of the length of the pipe, if the thickness of the pipe is inevitable damage to the pipe.

The present invention has been made in view of the above point, and an object thereof is to provide a pipe processing apparatus that can easily process the joining portion of the metal pipe.

It is also an object of the present invention to provide a pipe processing apparatus capable of processing metal pipes of various lengths or diameters and minimizing damage of the metal pipes.

Technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

Pipe processing apparatus according to the present invention for achieving the above object comprises a mounting portion for horizontally fixing the metal pipe and moving back and forth with the metal pipe; And a processing unit having a protrusion formed to be inserted into the metal pipe and a receiving groove formed at an outer periphery of the lower portion of the protrusion to receive and contact one end of the metal pipe, wherein the processing unit is accommodated in the receiving groove by rotation. One end of the heating unit, and the mounting portion presses the metal pipe toward the receiving groove so that one end of the heated metal pipe is bent outward.

The mounting portion includes a holder coupled to the front end of the mounting portion and tightening a portion of the outer circumferential surface of the metal pipe to fix the metal pipe, and a cylindrical body coupled to the holder and through which the metal pipe passes.

In addition, the mounting portion further includes a rack gear coupled to the outside of the body, the rack gear moves the mounting portion back and forth in accordance with the rotation of the engaged pinion.

In addition, the mounting portion further includes one or more joint members moving along the guide rail and coupled to the body.

The receiving groove includes a concave hemispherical bottom surface, a first side wall close to a rotation axis of the center of the processing part, and a second side wall far from the rotation axis, wherein the first side wall contacts an inner peripheral surface of one end of the metal pipe and 2 sidewalls are formed in contact with one end of the metal pipe which is bent outwardly.

By using the pipe processing apparatus according to the present invention, even a user without skilled skills can easily process the coupling portion of the metal pipe. In addition, the pipe processing apparatus of the present invention can process a metal pipe of various lengths or diameters, it is possible to minimize the damage of the metal pipe during processing.

1 is a view showing a pipe processing apparatus according to an embodiment of the present invention.

FIG. 2 is a view illustrating a lower portion of the mounting unit 20 of FIG. 1.

3 and 4 are views showing in detail the processing unit 30 of FIG.

FIG. 5 is a view illustrating the machining part 30 and the fixing member 35 of FIG. 1.

6 is a view showing the processed metal pipe 100 and the connecting members (200, 300).

7 is a view illustrating the metal pipe 100 and the

connection members

200 and 300 in a coupled state.

The above objects, features, and advantages will become more apparent from the detailed description given hereinafter with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention pertains may have the technical idea of the present invention. It will be easy to implement. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, a pipe processing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Pipe processing apparatus according to the present invention is used to process the pipe to have a structure necessary for the coupling between the connecting member and the pipe when connecting two pipes using a connecting member, and the inner diameter and It can be mainly used to process thin metal pipes with small difference in outer diameter.

1 is a view showing a pipe processing apparatus according to an embodiment of the present invention, Figure 2 is a view showing a lower portion of the mounting portion 20 of FIG. 3 and 4 are views showing the processing unit 30 of FIG. 1 in detail.

As shown in FIG. 1, the pipe processing apparatus according to the present invention includes a frame 10, a mounting unit 20, a processing unit 30, a transfer unit 40, and a motor 60.

The frame 10 is for supporting or fixing the mounting portion 20, the processing portion 30, the transfer portion 40, the motor 60, and the like. The frame 10 has the first and second

vertical surfaces

11 and 12 formed at regular intervals. Include. One or more guide rails 41 are coupled to the first and second

vertical surfaces

11 and 12 so that the mounting portion 20 may move back and forth between the first and second

vertical surfaces

11 and 12.

The mounting portion 20 is formed to horizontally fix the metal pipe 100 and move back and forth with the metal pipe 100, in particular, the metal pipe (100) in order to approach and contact the metal pipe 100 to the processing unit 30 ( Move 100). The mounting portion 20 includes a holder 21, a cylindrical body 23, one or more joint members 25, and a rack gear 27. The holder 21 is coupled to the front end of the mounting portion 20 and is configured to tighten a portion of the outer circumferential surface of the metal pipe 100 to fix the metal pipe 100, the structure can be applied in various ways. The body 23 is coupled to the holder 21 and formed in parallel with the metal pipe 100 so that the metal pipe 100 penetrates through the inner center thereof. The coupling member 25 is coupled to the outer circumferential surface of the body 23 and moves along the guide rail 41 to move the mounting portion 20 back and forth. The rack gear 27 is coupled to the outside of the body 23 in the longitudinal direction of the body 23 in the lower portion of the body 23, for example, as shown in Figure 2, according to the rotation of the engaged pinion 42 The mounting portion 20 is moved back and forth.

3 and 4, the processing unit 30 is for processing the metal pipe 100 while heating the metal pipe 100 using frictional heat, the material is to be made of metal or ceramic Can be. The processing unit 30 is provided on the outer circumference of the lower portion of the protrusion 31 so as to receive and contact one end of the metal pipe 100 and the protrusion 31 formed to be inserted into the metal pipe 100 as the mounting unit 20 approaches. It includes a receiving groove 33 formed. The protrusion 310 is preferably formed so that the diameter of the front end is smaller than the diameter of the rear end to facilitate insertion into the metal pipe 100, the bottom surface 33a of the receiving groove 33 has a concave hemispherical shape. desirable.

The processing unit 30 is configured to rotate by receiving the rotational force of the motor 60, and heats one end of the metal pipe 100 accommodated in the receiving groove 33 by the rotation, wherein the mounting unit 20 is heated The metal pipe 100 is pressed toward the receiving groove 33 so that one end of the metal pipe 100 is bent outward.

The accommodation groove 33 includes a first side wall 33b close to the rotation axis R of the processing unit 30 and a second side wall 33c relatively far from the rotation axis R, and includes the first side wall 33b. The silver metal pipe 100 is in contact with the inner circumferential surface of one end, and the second sidewall 33c is formed to be in contact with one end of the metal pipe 100 that is bent outward. In order to facilitate heating of the metal pipe 100, the first sidewall 33b may be formed to have a rough surface to increase the coefficient of friction.

As shown in FIG. 5, a fixing member 35 for fixing the processing unit 30 is formed between the processing unit 30 and the motor 60, and the fixing member 35 forms the processing unit 30. It has a structure that can be detached. Since the processing unit 30 of various sizes / diameters can be fastened to the fixing member 35, it is possible to process metal pipes of various diameters.

The transfer part 40 includes one or more guide rails 41, pinions 42, a power shaft 43, a handle 44, and a support 45. The guide rail 41 is for securing a stable movement of the mounting portion 20 and is coupled between the first and second

vertical surfaces

11 and 12. The pinion 42 rotates in engagement with the rack gear 27 to move the mounting portion 20. The power shaft 43 is coupled to the pinion 42 so as to penetrate the center of the pinion 42 to transmit a rotational force to the pinion 42, and is supported by two or more supports 45. The handle 44 is configured to provide a rotational force to the pinion 42 through the power shaft 43 and may be configured to allow the user to manually operate the handle 44, but instead of the handle 44, a motor (not shown). Using may also provide a rotational force to the pinion (42).

Hereinafter, a processing method using the pipe processing apparatus of the present invention will be described in detail.

First, the metal pipe 100 to be processed is firmly mounted and fixed to the holder 21, at which one end of the metal pipe 100 is fixed to protrude out of the holder 21. Since the metal pipe 100 may be inserted into or discharged from the holder 21 through the cylindrical body 23, the metal pipe 100 may be mounted and fixed without limitation in length or diameter.

Subsequently, while the machining unit 30 rotates about the rotation shaft R, the mounting unit 20 receives and contacts one end of the metal pipe 100 in accordance with the rotation of the pinion 42. Move. The first sidewall 33b of the accommodating groove 33 heats one end of the metal pipe 100 while contacting the inner circumferential surface of the one end of the metal pipe 100. At this time, the mounting portion 20 continuously presses the metal pipe 100 toward the receiving groove 33 so that one end of the heated metal pipe 100 is bent outward. As such, one end of the metal pipe 100 that is bent by heating and pressing is bent at 180 degrees along the second sidewall 33c, but preferably bent to abut on the outer surface of the metal pipe 100.

Using the pipe processing apparatus of the present invention as described above, even a user without skilled technology can easily process the coupling portion of the metal pipe 100, and the metal pipe 100 is processed in a heated state, so that deformation or damage during processing can be achieved. Can be minimized.

The metal pipe 100 processed through the above process has a locking jaw 110 at one end thereof, and two or more metal pipes 100 are connected to the connecting

members

200 and 300 as shown in FIGS. 6 and 7. ) Can be combined. The first connection member 200 includes a spring seating portion 220 on which the circular leaf spring 210 is seated and a pipe through hole 230 through which the metal pipe 100 passes, and a screw groove 240 on an inner circumference thereof. It is formed into a cylindrical shape with). The second connection member 300 includes an O-ring seating portion 320 in which the O-ring 310 is seated on the side to which the metal pipe 100 is coupled, and a through portion 340 having the same inner diameter as the metal pipe 100. It is formed in a cylindrical shape having a thread 330 on the outer circumference.

The first step of the coupling is to insert the leaf spring 210 into the spring seating portion 220 provided in the first connection member 200 and then connect the metal pipe 100, the locking jaw 110 is the leaf spring 210 The metal pipe 100 is prevented from escaping to the opposite side to be engaged with the first connection member 200. In the second step, the rubber ring O-ring 310 is inserted into the O-ring seating portion 320 provided in the second connection member 300, and then the screw groove 240 and the screw thread 330 are fastened to the first connection member. Combine the 200 and the second connection member 300. At this time, the locking jaw 110 formed in the metal pipe 100 may be bonded to the O-ring 310 to prevent leakage of the fluid. When the other metal pipe 100 is coupled to the other side of the second connecting member 300 in the above-described manner, two pipe connections are completed. Particularly, the metal pipe 100 is made of stainless steel or copper, and when the diameter is 5 to 50 mm, since deformation occurs relatively easily at the coupling portion of the pipe 100, the connection member 200 together with the locking step 110 as described above. , 300) can reduce the deformation of the metal pipe 100 and has an effect that the coupling portion is reinforced.

While the invention has been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Claims

A mounting part for horizontally fixing the metal pipe and moving back and forth with the metal pipe;

It includes a processing unit having a projection formed to be inserted into the metal pipe and the receiving groove formed on the outer periphery of the lower portion of the projection to receive and contact one end of the metal pipe,

The processing unit heats one end of the metal pipe accommodated in the receiving groove by rotation, and the mounting portion presses the metal pipe toward the receiving groove so that one end of the heated metal pipe is bent outward. Pipe processing equipment.
The method of claim 1,

The mounting portion

A holder coupled to a front end of the mounting portion and tightening a portion of an outer circumferential surface of the metal pipe to fix the metal pipe;

And a cylindrical body coupled to the holder and through which the metal pipe passes.
The method of claim 2,

The mounting portion further includes a rack gear coupled to the outside of the body,

The rack gear pipe processing apparatus, characterized in that for moving the mounting portion back and forth in accordance with the rotation of the engaged pinion.
The method of claim 2,

The mounting portion

Pipe processing apparatus further comprises one or more joint members coupled to the body moving along the guide rail.
The method of claim 1,

Pipe processing apparatus, characterized in that the bottom surface of the receiving groove has a concave hemispherical shape.
The method of claim 1,

The receiving groove includes a first side wall close to the axis of rotation of the center of the processing unit and a second side wall far from the axis of rotation,

And wherein the first sidewall is in contact with the inner circumferential surface of one end of the metal pipe and the second sidewall is in contact with one end of the metal pipe that is bent outward.