KR101491537B1 - Appratus for manufacturing edge of plate for uoe line pipe - Google Patents

Abstract

A plate edge processing apparatus for a UOE line pipe comprises: a table unit whose top surface is flat and which is maintained at a fixated state; multiple plate holders which are positioned on the top surface of the table unit in order to form the same flat surface, and where plates are positioned; a holding fixating units which connect the top surface of the table unit to the bottom surface of the plate holder in order to fixate the plate holder to the top surface of the table unit; multiple plate fixating units which face one another so that the plate can be positioned therebetween, and are positioned along the edge of the table unit in order to pressurize the edge of the top surface of the plate; and a cutting unit which is in contact with a longitudinal section of the plate in order to cut the longitudinal section of the plate along the edge of the plate. When the cutting unit is in contact with the longitudinal section of the plate, the plate fixating unit corresponding to the longitudinal section of the plate is separated from the top surface of the plate. Therefore, the plate edge processing apparatus for a UOE line pipe can process the edge when the plate is fixated, and can reduce space and costs for the processing.

Description

[0001] APPARATUS FOR MANUFACTURING EDGE OF PLATE FOR UOE LINE PIPE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate edge processing apparatus for a UOE line pipe, and more particularly, to a plate edge processing apparatus for a UOE line pipe capable of reducing space and cost due to processing.

With the increase in global energy demand, transportation using a line pipe is the most efficient way to transport crude oil or gas over long distances. Such a line pipe can maximize its efficiency by increasing the transport pressure of the fluid in the pipe, that is, raw oil or gas. However, in order to increase the transport pressure of the fluid, it is necessary to increase the strength of the pipe base material.

Currently, steels for line pipe of X70 grade or less are mainly used. However, by reducing the diameter and thickness of the line pipe and reducing the weight of the steel used, it is possible to improve the transportation efficiency by increasing the transportation pressure, (Pipe-to-pipe welding), which occupies a large part of the line pipe construction cost due to the reduction in the thickness of the pipe, can be reduced, thereby greatly reducing the construction cost.

FIG. 1 is a view showing a general UOE fabrication method. As shown in FIG. 1, a C-crimping step is performed by first pressing the two kinds of plate materials P with the upper molding part 11 and the lower molding part 12 of the C-molding machine. Thereafter, a U-press step is performed in which the plate material P is deformed in a U-shape through the main forming part 21 and the jig 22 of the U-forming machine.

The U-shaped plate material is pressed between the upper molding machine 31 and the lower molding machine 32 of the O-molding machine each having a semicircular surface, and an O-molding step of deforming into an alphabet O shape is performed. O-shaped steel pipe is subjected to tack welding for fixing a pipe which is opened by spring back for pipe welding, and the pipe is welded by submerged arc welding. And pipe manufacturing is completed by expanding to improve roundness and reduce residual stress during molding.

2 is a view showing a plate edge processing apparatus 200 for a UOE line pipe according to the prior art. As shown in Fig. 2, both longitudinal sides of the plate material P are edge-processed by using the plate edge processing apparatus 200 for a UOE line pipe. As a result, when submerged arc welding is performed in a state in which both longitudinal sides of the plate are in contact with each other, a groove is formed by the formed edge (E), and submerged arc welding .

On the other hand, when both longitudinal sides of the plate material P are edge-processed, the plate material P is processed in a non-magnetic manner and installed in the plate edge processing apparatus 200 for a UOE line pipe. The plate material P is fixed in a state of being pressed by the upper fixture 202 while being positioned on the lower base 201. [ A part of both longitudinal sides of the plate material P to be processed is joined to the head 231 having a shape corresponding to the shape of the planes 203, particularly the edge E, installed in consideration of the size of the plate material. At this time, the plate material P moves in the forward and backward directions between the planar members 203 while being fixed by the lower base 201 and the upper fixture 202, and an edge E is formed on the plate material P . That is, edge processing is performed through the movement of the plate material P.

Such a plate edge processing apparatus for a UOE line pipe requires a considerably large working space because edge processing is performed due to the movement of the plate material. As a result, a considerable cost is required depending on the apparatus.

An object of the present invention is to provide a plate edge processing apparatus for a UOE line pipe which processes an edge in a state that a plate is fixed.

It is another object of the present invention to provide a plate edge processing apparatus for a UOE line pipe capable of reducing the space and cost of processing.

According to the present invention, there is provided a portable terminal comprising: a table portion having a flat top surface and held in a fixed state; A plurality of sheet material mounts positioned on the upper surface of the table portion so as to form the same plane and on which the sheet material is placed; Fixing portions for fixing the sheet material mounting portion to the upper surface of the table portion by connecting the upper surface of the table portion and the lower surface of the sheet material mounting portion, respectively; A plurality of plate material fixing portions facing each other with the plate material therebetween and located along the edge of the table portion and pressing the top edge of the plate material; And a cutting portion which is in contact with a longitudinal face of the plate member and cuts the longitudinal face of the plate member along an edge of the plate member, wherein when the cutting portion is in contact with the longitudinal face of the plate member, And the fixing part is spaced from the upper surface of the plate material.

The mounting fixture may include fixing grooves formed on the upper surface of the table portion corresponding to the plate member mounting portion, the mounting grooves being recessed in a T shape; And a fixing bolt inserted into the fixing groove and coupled to the plate fixing part to fix the fixing fixing part on the upper surface of the table part.

The plate member fixing unit may include a main body unit having a letter shape and capable of facing the top surface and the longitudinal surface of the plate member at the same time; A stroke part positioned at an edge of the table part and connected to a lower surface of the main body part to move the main body part in a vertical direction; And a hinge portion connecting the main body portion and the stroke portion to allow the main body portion to rotate about an end of the stroke portion. When the main body portion faces the top surface and the longitudinal surface of the plate material at the same time, When the stroke portion moves the main body portion that is in contact with the upper surface of the plate material upward, the main body portion moves the hinge portion so as to be spaced apart from the longitudinal surface of the plate material, And is rotatable about the center of the UOE line pipe.

The cutter cuts a longitudinal section of the plate material along a longitudinal plane of the plate material to a flat surface and cuts an upper end portion and a lower end portion along a longitudinal plane of the plate material contacting each other to process the line pipe, Disclosed is a plate edge processing apparatus for a UOE line pipe.

The plate edge processing apparatus for a UOE line pipe according to the present invention has the following effects.

(1) A plate edge machining apparatus for a UOE line pipe according to the present invention includes a table portion, a plate material mounting portion, a stationary fixing portion, plate fixing portions, and a cutting portion. In the process of manufacturing a line pipe using a plate material, Is used to form the groove in which the deposited metal is located when both longitudinal sides of the weld metal are welded in contact. The plate material is placed on the upper surface of the plate material fastening portions fixed by the fastening fasteners on the upper surface of the table portion made of a flat plane. At this time, the plate material is fixed in a state where the upper surface is pressed by the plate material fixing parts positioned along the edge of the table part, and the longitudinal section is cut by the cutting part so as to be used for the UOE line pipe. That is, the plate material is processed by the movement of the cutting portion while being positioned on the plate material portions by the plate material fixing portions. Therefore, the plate edge processing apparatus for a UOE line pipe according to the present invention has the effect of processing the plate material into a fixed state.

(2) According to the present invention, a plate edge processing apparatus for a UOE line pipe according to the present invention processes a plate material in a fixed state, and only a space in which a plate material is located and a moving space of a cutting section are required for processing. At this time, the table portion, which is the space where the plate material is placed, can be a general milling table, and only the cutting portion is moved, not the plate material. Therefore, the apparatus for edge processing a UOE line pipe according to the present invention according to the present invention has the effect of reducing the space and cost associated with the processing of the plate material.

FIG. 1 is a view showing a general UOE fabrication method.
2 is a view showing a plate edge processing apparatus for a UOE line pipe according to the prior art.
3 is a perspective view showing a plate edge processing apparatus for a UOE line pipe according to a preferred embodiment of the present invention.
4 is a plan view and a sectional view showing a plate edge processing apparatus for a UOE line pipe shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 3 is a perspective view showing a plate edge processing apparatus 100 for a UOE line pipe according to a preferred embodiment of the present invention, and FIG. 4 shows a plate edge processing apparatus 100 for a UOE line pipe shown in FIG. A plan view and a sectional view.

3 and 4, a plate edge processing apparatus 100 for a UOE line pipe according to a preferred embodiment of the present invention includes a table portion 101, a sheet material mounting portion 102, a stationary fixing portion 103 When the two longitudinal side surfaces of the plate material P are welded in contact with each other to manufacture a line pipe using the plate material P including the plate material fixing parts 104 and the cutting part 105, Is used to form an edge E (see Fig. 2) on both longitudinal sides of the plate material P so as to form a groove in which the plate material P is located.

The table portion 101 is held in a fixed state, and its upper surface is flat. The table portion 101 is formed in the form of a general milling table.

There are a plurality of plate material receiving portions 102, and are positioned on the upper surface of the table portion 101 so as to be coplanar. The plate material P may be positioned on the upper surface of the plate material receiving portions 102 which are coplanar. Further, the sheet material mounting portions 102 can be separated from the table portion 101 as needed. The table portion 101 from which the sheet material mounting portions 102 are separated can be used for other processes.

On the other hand, the plate material P is positioned on the upper surface of the plate material mounting portions 102, and is placed in a state in which no restraining force is exerted so that an integral magnetic force is not exerted.

The stationary fixing portions 103 connect the upper surface of the table portion 101 and the plate material fixing portion 102 to fix the plate material fixing portion 102 to the upper surface of the table portion 101, respectively. The stationary fixing unit 103 includes the fixing grooves 131 and the fixing bolts 133. [

The fixing grooves 131 are formed in a T-shape on the upper surface of the table portion 101 so as to correspond to the plate receiving portions 102, respectively.

The fixing bolt 133 is inserted into the fixing groove 131 and is coupled to the plate receiving portion 102. At this time, the stationary fixing part 102 is fixed to the upper surface of the table part 101. [ Due to the combination of the fixing bolts 133 and the fixing grooves 131, the sheet material mounting portions 102 are stably positioned on the upper surface of the table portion 101.

The sheet material fixing portions 104 are positioned along the edge of the table portion 101 so as to face each other so as to sandwich the sheet material P therebetween. At this time, the sheet material fixing parts 104 are used to press the upper surface edge of the plate material P, respectively. The plate material fixing portion 104 includes a body portion 141, a stroke portion 143, and a hinge portion 145.

The body portion 141 is formed in a letter shape. Thus, the body portion 141 can face the top surface and the longitudinal surface of the plate material P at the same time.

The stroke portion 143 is located at the edge of the table portion 101 and is connected to the lower surface of the body portion 141. At this time, the stroke portion 143 can move the body portion 141 in the vertical direction.

When the stroke portion 143 moves the body portion 141 downward while the body portion 141 faces the top surface and the longitudinal side face of the plate material P simultaneously, And presses the plate material P in contact with the upper surface. The plate member P is restrained by the combination of the body portion 141 and the stroke portion 143 and is fixed to the upper surface of the plate member mounting portions 102. [ The stroke portion 143 is formed in the form of a cylinder using hydraulic pressure.

The hinge portion 145 connects the main body portion 141 and the stroke portion 143 so that the main body portion 141 is rotatable about the end of the stroke portion 143. At this time, the hinge portion 145 serves as a central axis. The main body portion 141 is rotated toward the hinge portion 145 to approach the plate material P and then to be spaced apart.

The main body portion 141 presses the plate material P in combination with the stroke portion 143 while being in contact with the upper surface of the plate material P so that the main body portion 141 rotates about the hinge portion 145 I never do that. When the stroke portion 143 moves the main body portion 141 which is in contact with the upper surface of the plate material P upwardly, the main body portion 141 rotates about the hinge portion 145 so as to be spaced apart from the longitudinal plane of the plate material P It is rotatable. That is, the plate material P is in a state of being released from the state of being constrained by the plate material fixing portion 104. Therefore, due to the above-described structure, the sheet material fixing unit 104 can restrain or unclamp the sheet material P as needed.

The cutting section 105 is in contact with the longitudinal section of the plate material P and cuts the longitudinal section of the plate material P along the edge of the plate material P. [ That is, the cutting portion 105 is used to directly process the plate material P.

The cutting portion 105 has a machining line along the edge of the plate P as shown in Fig. 4 (b). The sheet material fixing portions 104 corresponding to the contacted longitudinal section are spaced from the upper surface of the sheet material P when the cutting portion 105 contacts the longitudinal surface of the sheet material P. [ That is, the plate material fixing portion 104 releases the restraint of the plate material P so that the cutting portion 105 used for edge processing does not interfere with the plate material fixing portion 104. For example, referring to Fig. 4 (b), when the cutting section 105 processes the longitudinal section of the plate material P between A and B, the plate material fixing section 104 between A and B is pressed against the plate material P, Respectively. After completion of the machining of the longitudinal section of the plate material P between A and B, the plate material fixing section 104 between A and B contacts the plate material P and restrains the plate material P.

On the other hand, the cutting portion 105 cuts the longitudinal section of the plate material P along the longitudinal plane of the plate material P. [ As a result, the longitudinal profile of the plate P primarily consists of a flat surface. 4 (b), the cutting portion 105 is formed by cutting a portion of the plate material P between the portions C and A between the longitudinal ends of the plate material P between B and C in FIG. P) of the vertical cross-section. As a result, an edge (E) for forming the deposited metal in the welding process is formed. That is, the plate material fixing unit 104 can restrict or release the plate material P as the cutting unit 105 moves.

The plate edge processing apparatus for a UOE line pipe as described above edge-processes a plate material in a fixed state. Therefore, in order to process the edge of the plate, only the space in which the plate is placed and the moving space of the cut is required. At this time, the table portion, which is the space where the plate material is placed, may be a general milling table. Further, since the plate material in the fixed state is processed by the movement of the cutting portion, a remarkably reduced machining space and cost can be required as compared with the case where the plate material itself is moved. Therefore, the plate edge processing apparatus for a UOE line pipe according to the present invention can process the plate material in a fixed state, thereby reducing space and cost due to processing. Further, since the longitudinal cross-section of the plate material is entirely cut, it can be obtained as a plate having a desired dimension and used for edge processing.

While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the present invention. In addition, the description in parentheses in the description of the claims is intended to prevent obscuration of the description, and the scope of the claims of the claims should be construed to include all the items in parentheses.

100: Edge machining equipment for UOE line pipe
101: table portion
102:
103: The stationary station
131: Fixing groove
133: Fixing bolt
104:
141:
143: Scrunk part
145: Hinge section
105:
P: sheet material
E: Edge

Claims (4)

A table portion having a flat upper surface and held in a fixed state;
A plurality of sheet material mounts positioned on the upper surface of the table portion so as to form the same plane and on which the sheet material is placed;
Fixing portions for fixing the sheet material mounting portion to the upper surface of the table portion by connecting the upper surface of the table portion and the lower surface of the sheet material mounting portion, respectively;
A plurality of plate material fixing portions facing each other with the plate material therebetween and located along the edge of the table portion and pressing the top edge of the plate material; And
And a cutting portion which is in contact with a longitudinal surface of the plate member and cuts a longitudinal section of the plate member along an edge of the plate member,
Wherein the plate member fixing portion corresponding to the longitudinal section of the contacted plate member is spaced from the upper surface of the plate member when the cutting portion is in contact with the longitudinal end face of the plate member.
delete The sheet material fixing device according to claim 1,
A body portion formed in an 'a' shape and capable of facing an upper surface and a longitudinal surface of the plate member at the same time;
A stroke part positioned at an edge of the table part and connected to a lower surface of the main body part to move the main body part in a vertical direction; And
And a hinge part connecting the main body part and the stroke part to allow the main body part to rotate around an end of the stroke part,
When the main body portion faces the top surface and the longitudinal surface of the plate member at the same time, the stroke portion moves the main body portion downward to contact the upper surface of the plate member, presses the upper surface of the plate member,
Wherein the body portion is rotatable about the hinge portion so as to be spaced apart from a longitudinal side surface of the plate member when the stroke portion moves the main body portion that is in contact with the upper surface of the plate member upward.
The method according to claim 1,
Wherein the cutting section cuts the longitudinal section of the plate material to a flat surface along the longitudinal section of the plate material and cuts the upper and lower ends along the longitudinal section of the plate material which are in contact with each other to process the line pipe, Plate edge processing equipment for pipes.

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