KR20110015357A

KR20110015357A - Metal pipe of tubulate manufacture method and manufacture apparatus

Info

Publication number: KR20110015357A
Application number: KR1020100019329A
Authority: KR
Inventors: 곽경숙
Original assignee: 곽경숙
Priority date: 2009-08-07
Filing date: 2010-03-04
Publication date: 2011-02-15
Also published as: KR101221575B1

Abstract

PURPOSE: A method and a device for manufacturing a branch pipe of a metal pipe are provided to continuously perform punching, plasticizing, and grinding by installing a burring punch inside a metal pipe. CONSTITUTION: A method for manufacturing a branch pipe of a metal pipe is as follows. A metal pipe(100) is placed on a lower die(3). The metal pipe is fixed by driving clamps(120) formed in both ends of an upper die(2). An elliptical rod punch(150) is descended by the operation of a cylinder(140). The metal pipe is punched in a perpendicular direction using a burring punch. A rod punch is rotated inside the burring punch and is coupled to the burring punch. The rod punch moves the burring device in a vertical direction of the metal pipe by the operation of the cylinder. A branch pipe is molded by burring out the punched part of the metal pipe.

Description

Metal pipe of tubulate manufacture method and manufacture apparatus

The present invention relates to a method for manufacturing an automated metal pipe branch pipe, and a device thereof, and more particularly, to form a T-shaped branch pipe puller so as to protrude perpendicularly to a metal pipe, that is, a branch requiring a pipe. The present invention relates to a metal pipe branch pipe manufacturing method and apparatus therefor.

As noted, metal pipes are used in a variety of industrial facilities, such as piping for water and sewage facilities, water treatment facilities, heating piping, and piping for fire fighting facilities.

In the conventional manufacturing method of branched metal pipes, which are used in various industrial fields, a cutting process of cutting a general structural metal pipe to a predetermined size, and a punch punching a hole at a branch installation location using a rod punch and a punch die Process and insert the conical plug inside the steel pipe to fasten the bolt from the top where the hole is drilled, and pull the fastening bolt with a hydraulic press to cause plastic deformation in the drilled hole so that it protrudes vertically. It consists of a grinding process that processes at a height, and each process is an independent process. Especially, the branch pipe firing process inserts a truncated conical plug into the perforated steel pipe. Causes plastic deformation in the drawn out and drilled holes and retightens bolts As the manual repetition of the plug re-insertion and the bolt fastening in the metal pipes must be repeated manually, not only it takes too much time but also it is difficult to maintain the uniformity of the product even if skilled labor is put into each process. There is a problem that the quality is lowered and the manufacturing cost is increased due to the decrease in productivity due to the defective rate.

The applicant of this application installed the burring punching die with conical burring function and punching function inside the metal pipe in the existing method of drawing out the branch pipe firing process of the metal pipe from the outside, thereby simplifying the repeated work, punching, branch pipe firing and grinding. The continuous operation on a single machine provides a process technology that solves the problems mentioned above.

An object of the present invention is to bury the T-shaped branch pipe of the metal pipe from the inside of the metal pipe to the outside to form a high quality metal pipe branch pipe having a certain standard and product uniformity to improve the quality and innovative manufacturing cost The present invention provides a method and apparatus for manufacturing a branch pipe of a metal pipe, which can lower the product competitiveness.

It is another object of the present invention to install a burring punch having a conical burring function and a punching function inside a metal pipe, thereby simplifying repetitive work and punching, branch pipe firing and grinding in a single machine. It is to provide a manufacturing method and an apparatus thereof.

It is still another object of the present invention to manufacture a branch pipe of a metal pipe, and a method for manufacturing a branch pipe of a metal pipe and a device for shortening the production time of the branch pipe of a metal pipe without requiring a large number of workers. In providing.

Still another object of the present invention is to provide a method and apparatus for manufacturing a branch pipe of a metal pipe, in which a T-shaped branch pipe product of a metal pipe can be produced uniformly.

The present invention for achieving the above object in the branch pipe manufacturing method of the metal pipe,

The first process of cutting the metal pipe to a certain size to fix the metal pipe to the lower die formed with a semi-circular groove formed in the upper part of the base fixing base and to drive the clamps installed at both ends of the upper die with a second cylinder to fix the metal pipe. And the elliptical rod punch installed in the shaft rod is lowered by the forward operation of the cylinder installed in the perpendicular direction of the metal pipe seated on the upper and lower dies through the first process so that the perpendicular direction is obtained by the burring punch inside the metal pipe. The second process for punching the hole and the rod punch having the punching function and the burring function in the inside of the perforated metal pipe through the second process are rotated 90 degrees in the burring punch, and the oval rod punch is fastened with the burring punch. A third process having a function and a rod punch engaged with the shaft rod by a cylinder backward operation through the third process The fourth step of forming the branch pipe by moving the burring punch in the vertical direction of the metal pipe to burr the perforated portion of the metal pipe to the outside, and the fourth step inside the branch pipe metal pipe which is operated by moving the cylinder forward. The fifth process of returning the roving punch, and the rotational body coupled to the shaft rod and the pulley coupled to the shaft through the fifth process is moved downward and connected to the pulley and the belt by the driving of the motor. The sixth process of completing the branch pipe of the metal pipe by processing the branch pipe to a certain height by rotating the whole bite at the lower part, and through the sixth process, the rod punch connected to the burring punch inside the metal pipe in the reverse direction. A seventh process of separating the rod punch and the burring punch by rotating it by 90 degrees, and the seventh process of reversing the cylinder through the seventh process to completely remove the rod punch from the burring punch. An eighth process and a ninth process of releasing the clamps on both ends of the upper and lower dies through the eighth process and separating the metal pipe on which the branch pipe is formed.

The upper side of the shaft rod is connected to the link so that the arm is connected to the link and the arm is characterized in that the first cylinder is connected to the rod through the bracket is installed.

In the branch pipe manufacturing apparatus of the metal pipe of the present invention,

A fixed frame installed on an upper part of the base fixing base, a main cylinder provided with a cylinder rod on a lower side of the fixed frame, an upper and a lower rod fixing plate on which a plurality of shaft rods are installed, and an upper side of the shaft rod A first cylinder connected to a rod and an arm connected to a rod through a bracket, and a rotating body installed to rotate integrally with a gear at a lower side of the shaft rod and connected to the link so as to rotate 90 degrees. At the lower end of the whole, the bite is installed to process the branch pipe to a constant height, and the motor shaft is installed in the vertical direction on one side of the upper and lower rod fixing plate, the pulley installed on the motor shaft of the motor and the belt connected to the rotating body And, the lower end of the shaft rod and the elliptical rod punch is installed so as to perforate the metal pipe, the rod punch and spaced apart The upper and lower dies having semi-circular grooves formed thereon to seat metal pipes cut to a predetermined size on the side, and clamps for fixing both ends of the metal pipes seated on the upper and lower dies, and inserted into and fixed in the metal pipes. Characterized in that consists of a burring punch is installed.

The burring punch has a convex lower end and a coupling hole connecting to the punch connector on the side and a cylindrical shape having a burring die shape at the top, and a perforated oval hole for punching is formed at the center of the upper burring punch. It is characterized in that it is installed perpendicular to the branch pipe position.

The clamp is connected to the clamp link, and the clamp link and the second cylinder is connected to the lower side, characterized in that by unwinding and fixing both ends of the metal pipe seated on the upper, lower die by the second cylinder.

The cylinder rod of the cylinder is reversed and the rod punch fixed to the lower end of the shaft rod moves the burring punch upwards, so that the burring punch burrs the outside of the metal pipe to the outside to form a T-shaped branch pipe. It is done.

The present invention is a branch pipe manufacturing apparatus of a metal pipe,

A fixed frame installed on an upper part of the base fixing base, a main cylinder provided with a cylinder rod on a lower side of the fixed frame, an upper and a lower rod fixing plate on which a plurality of shaft rods are installed, and an upper side of the shaft rod A first cylinder connected to a rod and an arm connected to a rod through a bracket, and a rotating body installed to rotate integrally with a gear at a lower side of the shaft rod and connected to the link so as to rotate 90 degrees. At the lower end of the whole, the bite is installed to process the branch pipe to a constant height, and the motor shaft is installed in the vertical direction on one side of the upper and lower rod fixing plate, the pulley installed on the motor shaft of the motor and the belt connected to the rotating body And, the lower end of the shaft rod and the elliptical rod punch is installed so as to perforate the metal pipe, the rod punch and spaced apart The upper and lower dies having semi-circular grooves formed thereon to seat metal pipes cut to a predetermined size on the side, and clamps for fixing both ends of the metal pipes seated on the upper and lower dies, and inserted into and fixed in the metal pipes. The punching position fixing body is installed, and the burring punch insertion hole of the punching position fixing body is characterized in that a burring punch having an elliptical hole formed thereon.

The punch position fixing body has a coupling hole for connecting the punch connector on both sides and a burring punch insertion hole at the upper side and a rib support jaw is formed at both sides of the burring punch insertion hole, and at the burring punch insertion hole. The burring punch is inserted into the guide groove and the guide hole on both sides and the perforated perforated oval hole formed on the upper side of the inner center bottom hole is formed so that the rod punch is inserted to rotate, the burring punch The punch position fixing body is installed to be moved up and down, characterized in that installed vertically to the branch pipe position of the metal pipe.

As described above, a method and a device for manufacturing a T-shaped branch pipe of a metal pipe according to the present invention include a high-quality metal pipe having a constant size and product uniformity because the metal pipe burrs the T-shaped branch pipe from the inside of the metal pipe to the outside. It is possible to form a transfer to improve the quality and innovatively lower the manufacturing cost has the effect of achieving product competitiveness.

In addition, by installing a conical burring punch inside the metal pipe, the simplicity of repetitive work and punching, branch pipe firing and grinding can be performed continuously in a single machine.

In addition, since the production of the T-shaped branch pipe of the metal pipe is made simple, there is no effect on the number of workers and the production time of the T-shaped branch pipe of the metal pipe is shortened.

In addition, there is an effect that the T-shaped branch pipe product of the metal pipe can be produced uniformly.

In addition, the manufacturing method and apparatus of the branch pipe of the metal pipe has the effect of reducing the high quality and after-sales service by improving productivity and manufacturing capacity, reducing manufacturing cost, mass production potential and product uniformity.

1 is a block diagram showing a branch pipe manufacturing process of a metal pipe according to the present invention.
Figure 2 is a front configuration diagram showing a branch pipe manufacturing apparatus of a metal pipe according to the present invention.
3 is a state in which the metal pipe is mounted on the branch pipe manufacturing apparatus of the metal pipe according to the present invention.
Figure 4 is a plan view of the main part of the branch pipe manufacturing apparatus of the metal pipe according to the present invention.
Figure 5 is a state diagram punched into the elliptical metal pipe according to the present invention.
Figure 6 is a side view just before the burring in a state that is perforated in an oval shape on the metal pipe according to the present invention.
Figure 7 is a road punching and burring punch configuration of the present invention.
Figure 8 is a configuration of a burring sponge installed inside the metal pipe according to the present invention.
9 is a burling punch operation state installed inside the metal pipe according to the present invention.
Figure 10a is a state diagram before forming the branch pipe in the metal pipe according to the present invention.
Figure 10b is a state in which the branch pipe is formed in the metal pipe according to the present invention.
11 is a position fixing structure of the road punch and the burring punch of another embodiment of the present invention.
12 is a perspective view of the burring punch and the rod pinch coupled to the position fixing body of another embodiment of the present invention.
Figure 13 is a burling punch configuration installed inside the metal pipe of another embodiment of the present invention.
Figure 14 is a burling punch operation state installed inside the metal pipe of another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the present invention may be embodied in many different forms and should not be limited to the described embodiments.

1 is a block diagram showing a branch pipe manufacturing process of a metal pipe according to the present invention, Figure 2 is a front configuration diagram showing a branch pipe manufacturing apparatus of a metal pipe according to the present invention, Figure 3 is a metal pipe according to the present invention 4 is a state diagram in which a metal pipe is mounted on a branch pipe manufacturing apparatus of FIG. 4, and FIG. 4 is a plan view of main parts of a branch pipe manufacturing apparatus of a metal pipe according to the present invention. And, Figure 5 is a state diagram punched in an elliptical shape on the metal pipe according to the present invention, Figure 6 is a side view of the state immediately before the burring in an oval punched state on the metal pipe according to the present invention, Figure 7 is a rod of the present invention Punch and burring punch configuration diagram, Figure 8 is a burling punch configuration diagram installed inside the metal pipe according to the invention, Figure 9 is a burling punch operation state diagram installed inside the metal pipe according to the present invention, Figure 10a It is a state diagram before forming a branch pipe in the metal pipe which concerns on this invention, FIG. 10B is a state diagram in which the branch pipe was formed in the metal pipe which concerns on this invention.

And, Figure 11 is a position fixing body configuration of the rod punch and the burring punch of another embodiment of the present invention, Figure 12 is a perspective view of the burring punch and the rod pinch coupled to the position fixing body of another embodiment of the present invention, Figure 13 Is a configuration diagram of the burring punch installed in the metal pipe of another embodiment of the present invention, Figure 14 is a state diagram of the burring punch installed in the metal pipe of another embodiment of the present invention.

The present invention relates to a method and apparatus for manufacturing an automated metal pipe branch pipe, and more particularly, to draw a T-shaped branch pipe to protrude perpendicularly to the metal pipe, that is, the portion requiring branching with respect to the pipe. The present invention relates to a method for producing a metal pipe branch pipe and a device therefor.

As shown in Figure 1 to 10b the present invention is a method for producing a branch pipe of a metal pipe,

The metal pipe 100 is cut to a predetermined size to fix the metal pipe 100 to be seated on the lower die 3 having the semi-circular groove formed on the upper part of the base holder 1, and to be installed at both ends of the upper die 2. The first process S1 of driving the 120 to the second cylinder 121 to fix the metal pipe 100, and the metal pipes mounted on the upper and lower dies 2 and 3 through the first process. The elliptical rod punch 150 installed in the shaft rod 151 is lowered by the forward operation of the cylinder 140 installed in the perpendicular direction of 100 to the perpendicular direction by the burring punch 30 inside the metal pipe 100. The second process (S2) for punching and the rod punch 150 having a punching function and a burring function in the inside of the metal pipe 100 punched through the second process 90 degrees in the burring punch (30). A third process (S3) having an burring function by rotating the elliptical rod punch 150 with the burring punch 30, and Through the third process, the rod punch 150 coupled with the shaft rod 151 by the backward operation of the cylinder 140 moves the burring punch 30 in the vertical direction of the metal pipe 100 so that the metal pipe 100 The fourth process (S4) for forming the branch pipe 101 by burring the perforated portion to the outside, and the fourth process is a burring punch into the burring branch pipe 101 pipe by moving the cylinder 140 forward The fifth process (S5) to the original position 30, the rotary body 190 is rotatably coupled to the shaft rod 151 and the pulley 160 coupled to the motor shaft through the fifth process is moved downward The rotating body 190 connected to the pulley 160 and the belt 170 by the driving of the motor 180 rotates, and the branch pipe 101 is processed by a predetermined height with a bite 191 at the bottom thereof, thereby providing a metal pipe 100. A sixth process (S6) of completing the branch branch pipe 101 of the) and the rod punch coupled to the burring punch 30 in the metal pipe 100 through the sixth process The seventh step (S7) of separating the load punch 150 and the burring punch 30 by rotating the 150 in the reverse direction by 90 degrees, and the backward operation of the cylinder 140 through the seventh process to load rod 150 ) Is the eighth process (S8) is completely separated from the burring punch (30), and through the eighth process to release the clamp 120 at both ends of the upper and lower dies (2, 3) and the branch pipe 101 is formed It is made of a ninth process (S9) for separating the metal pipe 100.

The upper side of the shaft rod 151 is connected to the link 44 so that the arm 44 is connected to the link 44 and the arm 43 is connected to the rod 41 through the bracket 42. The connected first cylinder 40 is installed.

As shown in Figure 2 to 10b the branch pipe 101 manufacturing apparatus of the metal pipe 100 of the present invention, the fixed frame 110 is installed on the upper part of the base fixture 1, and the fixed frame 110 The upper portion of the main cylinder 140 and the cylinder rod 141 is installed on the lower side, the cylinder rod 141 is the upper and lower rod fixing plate 70 is installed with a plurality of shaft rod 151, the shaft rod 151 ) Is connected to the link 44 so that the arm 43 is connected to the link 44 and the arm 43 is connected to the rod 41 through the bracket 42. 40), the lower body of the shaft rod 151 is integrally connected with the connecting gear 60, the rotating body 190 is installed so as to rotate, and the lower end of the rotating body 190 to process a branch pipe to a constant height The bite 191 is installed so that, one side of the upper, lower rod fixing plate 70, the motor shaft 180 is installed in the vertical direction and the motor 180 Oval rod punch 150 installed to drill the pipe 100 at the lower end of the shaft rod 151 and the belt 170 connected to the pulley 160 and the rotating body 190 installed on the motor shaft of the). Upper and lower dies 2 and 3 having semi-circular grooves formed on the lower side of the rod punch 150 spaced apart from each other to allow the metal pipe 100 cut to a predetermined size to be seated thereon. The clamp 120 is fixed to both ends of the pipe 100 seated on the 3, and the burring punch 30 is inserted into the metal pipe 100 and is fixedly installed.

The upper side of the shaft rod 151 is connected to the link 44 so that the arm 44 is connected to the link 44 by a hinge pin 45 so that the rotation can be rotated by 90 degrees. The first cylinder 40 connected to the rod is installed.

As shown in FIG. 7, the burring punch 30 has a lower convex curve and a coupling hole 32 connected to the punch connector 33 on the side and a perforating oval hole 31 formed on the upper side of the burring punch, and the burring punch 30 is installed perpendicular to the position of the branch pipe 101 of the metal pipe (100).

The clamp 120 is connected to the clamp link, the clamp link and the second cylinder 121 is connected to the lower side, the metal pipe seated on the upper, lower die (2, 3) by the second cylinder 121 ( It is to loosen and fix both ends of 100).

In the state as shown in FIG. 8, the cylinder rod 141 of the cylinder 140 moves backward, and the rod punch 150 fixed at the lower end of the shaft rod 151 moves the burring punch 30 upward, as shown in FIG. 9. The burring punch 30 burrs the perforated portion of the metal pipe 100 to the outside to form a tee-shaped branch pipe 101.

Metal pipe branch pipe manufacturing as described above is to cut the metal pipe 100 to a predetermined size, as shown in FIG.

In the above state, as shown in FIGS. 2 to 4, the metal pipe 100 is fixedly seated on the lower die 3 having the semi-circular groove formed on the upper part of the base holder 1, and installed at both ends of the upper die 2. The clamp 120 is driven by the second cylinders 121 on both sides to fix the metal pipe 100.

Upper and lower rods in which the cylinder rod 141 of the cylinder 140 installed in the orthogonal direction of the metal pipe 100 seated on the upper and lower dies 2 and 3 is coupled to the cylinder rod 141 by a forward operation. The plurality of shaft rods 151 installed on the fixed plate 70 moves forward while the elliptical rod punch 150 installed at the lower end of the shaft rod 151 is lowered and the burring punch 30 in the inside of the metal pipe 100. Perforate at right angles to die.

In this case, a plurality of shaft rods 151 are installed so that the elliptical rod punch 150 may form perforations simultaneously on the respective metal pipes 100.

In the figure, four shaft rods 151 are installed, so that the number of holes for mounting the elliptical rod punch 150 can be perforated in the metal pipe 100.

The first cylinder 40 operates the rod punch 150 having the punch function and the burring function to enter the perforated metal pipe 10 to pull or push the bracket 42 connected to the rod 41. The arm 43 connected to 42 moves left and right and rotates the link 44 coupled by the arm 43 and the hinge pin 45 in a 90 degree direction, so that the shaft rod fixed to one side of the link 44 ( The 151 is rotated 90 degrees so that the lower elliptical rod punch 150 is rotated 90 degrees in the burring punch 30 to fasten the rod punch 150 to the burring punch 30.

In the above state, the rod punch 150 coupled with the shaft rod 151 by the backward operation of the cylinder 140 moves the burring punch 30 upward in the vertical direction of the metal pipe 100 to the metal pipe. Burring the perforated portion to the outside to form the branch pipe (101).

The cylinder 140 is moved forward to return the burring punch 30 to the burring branch pipe metal pipe 100.

At this time, the rotatable body 190 rotatably coupled to the shaft rod 151 and the pulley 160 coupled to the motor shaft are moved downward and connected to the pulley 160 and the belt 170 by driving the motor 180. Rotating body 190 is rotated to process the branch pipe 101 by a certain height to the lower bite 191 to complete the branch pipe 101 of the metal pipe 100.

In the above state, the rod punch 150 coupled with the burring punch 30 inside the metal pipe 100 is rotated 90 degrees in a reverse direction to separate the rod punch 150 and the burring punch 30.

The cylinder 140 is driven backward to completely separate the rod punch 150 from the burring punch 30.

The clamp 120 at both ends of the upper and lower dies 2 and 3 is released, and the metal pipe 100 having the branch pipe 101 is separated.

Another embodiment of the present invention will be described below with reference to FIGS. 2 to 6 and 10B to 14.

The fixed frame 110 is installed on the upper part of the base fixture 1, the main cylinder 140, the cylinder rod 141 is installed on the lower side of the fixing frame 110, and the cylinder rod 141 is a plurality of An arm 43 is connected to the link 44 so that the upper and lower rod fixing plates 70 in which the shaft rod 151 is installed, and the upper side of the shaft rod 151 are connected to the link 44 so as to rotate 90 degrees. And the arm 43 is a first cylinder 40 connected to the rod 41 through the bracket 42, the lower body of the shaft rod 151 and the rotating body installed to rotate integrally with the gear 60 (190), the lower end of the rotating body 190, the bite 191 is installed to process the branch pipe to a certain height, and the motor shaft is installed in one direction of the upper and lower rod fixing plate 70 in the vertical direction ( 180, the belt 170 connected to the pulley 160 and the rotating body 190 installed on the motor shaft of the motor 180, and the shaft rod 151 of the A semicircular groove is provided at the lower end of the elliptical rod punch 150 installed to perforate the metal pipe 100, and the metal pipe 100 cut to a predetermined size on the lower side spaced apart from the rod punch 150. The upper and lower dies 2 and 3 formed therein, a clamp 120 for fixing both ends of the metal pipes 100 seated on the upper and lower dies 2 and 3, and inside the metal pipes 100. The punching position fixing body 200 inserted and fixedly installed, and the burring punch insertion hole 201 of the punching position fixing body 200 are provided with a burring punch 230 having an elliptical hole 231 formed thereon.

10 and 11, the punch position fixing body 200 has a coupling hole 204 for connecting the punch connector on both sides and a burring punch insertion hole 201 and both sides of the burring punch insertion hole 201 on the upper side. A rib support jaw 203 is formed in the guide groove 202, and the burring punch 230 inserted into the burring punch insertion hole 201 is guide ribs at both sides thereof to be inserted into the guide groove 202. A circular hole 233 is formed in the lower portion of the inner center at which the perforated oval hole 231 is formed at the upper portion 232, and the rod punch 150 is rotated, and the burring punch 230 is formed. It is installed to move up and down in the punch position fixing body 200 and is installed vertically to the branch pipe 101 position of the metal pipe 100.

As shown in FIG. 13, the cylinder rod 141 of the cylinder 140 moves backward and the rod punch 150 fixed to the lower end of the shaft rod 151 moves the burring punch 230 to the upper portion, as shown in FIG. 14. The burring punch 230 burrs a portion bored in the metal pipe 100 to the outside to form a T-shaped branch pipe 101.

Upper and lower rods in which the cylinder rod 141 of the cylinder 140 installed in the orthogonal direction of the metal pipe 100 seated on the upper and lower dies 2 and 3 is coupled to the cylinder rod 141 by a forward operation. A plurality of shaft rods 151 installed on the fixed plate 70 moves forward while the elliptical rod punch 150 installed at the bottom of the shaft rod 151 is lowered to be installed in the metal pipe 100. Perforations in a direction perpendicular to the die of the burring punch 230 installed in the stagnation 200.

The first cylinder 40 operates the rod punch 150 having the punch function and the burring function to enter the perforated metal pipe 10 to pull or push the bracket 42 connected to the rod 41. The arm 43 connected to 42 moves left and right and rotates the link 44 coupled by the arm 43 and the hinge pin 45 in a 90 degree direction, so that the shaft rod fixed to one side of the link 44 ( 151 is rotated 90 degrees so that the lower elliptical rod punch 150 is rotated 90 degrees in the burring punch 230 installed in the punch position fixing body 200 fixedly installed in the metal pipe 100. 150 is fastened to the burring punch (230).

In the above state, the rod punch 150 coupled to the shaft rod 151 by the backward operation of the cylinder 140 moves the burring punch 230 upward in the vertical direction of the metal pipe 100 to the metal pipe. Burring the perforated portion to the outside to form the branch pipe (101).

The cylinder 140 is moved forward to return the burring punch 230 to the burring position fixing body 200 inside the branch pipe metal pipe 100.

In the above state, the rod punch 150 engaged with the burring punch 230 seated on the punch position fixing body 200 installed inside the metal pipe 100 is rotated 90 degrees in the reverse direction to burring the rod punch 150 and the burring. The punch 230 is separated.

The cylinder 140 is driven backward to completely separate the rod punch 150 from the burring punch 230.

The clamp 120 at both ends of the upper and lower dies 2 and 3 is released to separate the metal pipe 100 having the branch pipe 101 formed thereon.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, The present invention may employ various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

1: Fixture 2: Upper die
3: lower die 30: burring punch
31: oval hole 32: coupling hole
33: Punch Connector 40: First Cylinder
41: Rod 42: Bracket
43: arm 44: link
45: hinge pin 60: coupling gear
70: rod fixing plate 100: metal pipe
101: branch pipe 110: fixed frame
120: clamp 121: second cylinder
122: clamp link 140: cylinder
141: cylinder rod 142: rod fixing
150: rod punch 151: shaft rod
160: pulley 170: belt
180: motor 190: rotating body
191: byte 200: fixed position
201: burring punch insertion hole 202: guide groove
203: rib support jaw 204: coupling hole
230: Burling Punch 231: Ellipse Hall
232: guide rib 233: circular hole

Claims

In the manufacturing method of the branch pipe of a metal pipe,
The first process of cutting the metal pipe to a certain size to fix the metal pipe to the lower die formed with a semi-circular groove formed in the upper part of the base fixing base and to drive the clamps installed at both ends of the upper die with a second cylinder to fix the metal pipe. (S1),
Through the first process, the elliptical rod punch installed in the shaft rod descends by the forward operation of the cylinder installed in the orthogonal direction of the metal pipe seated on the upper and lower dies, so that the boring punch in the metal pipe is drilled in the perpendicular direction. The second process (S2)
The third process (S3) having an oval rod punch coupled to the burring punch by rotating the rod punch having a punch function and a burring function in the burring punch 90 degrees inside the burring punch in the inside of the metal pipe bored through the second process (S3). )and,
A fourth process of forming a branch pipe by the rod punch coupled to the shaft rod by the cylinder reversing operation to move the burring punch in the vertical direction of the metal pipe to bury the perforated portion of the metal pipe to the outside; S4),
A fifth process (S5) of forwarding the fourth process to return the burring punch to the inside of the burring branch pipe metal pipe by advancing the cylinder;
Through the fifth process, the rotating body coupled to the shaft rod and the pulley coupled to the motor shaft are moved downward, and the rotating body connected to the pulley and the belt is rotated by the driving of the motor, and the branch pipe is fixed to the lower bite. The sixth process (S6) of processing the height to complete the branch pipe of the metal pipe,
A seventh process (S7) of separating the rod punch and the burring punch by rotating the rod punch engaged with the burring punch in the metal pipe 90 degrees in the reverse direction through the sixth process;
An eighth process (S8) in which the rod punch is completely separated from the burring punch by reversing the cylinder through the seventh process;
A method of manufacturing a branch pipe of a metal pipe, comprising a ninth process (S9) of releasing the clamps at both ends of the upper and lower dies through the eighth process and separating the metal pipe on which the branch pipe is formed.

The method of claim 1,
The upper side of the shaft rod is connected to the link is connected to the link so that the arm is connected to the link and the arm is a branch pipe manufacturing method of the metal pipe, characterized in that the first cylinder is connected to the rod through the bracket is installed.

In the branch pipe manufacturing apparatus of the metal pipe,
The fixed frame 110 is installed on the upper part of the base fixture 1, the main cylinder 140, the cylinder rod 141 is installed on the lower side of the fixing frame 110, and the cylinder rod 141 is a plurality of An arm 43 is connected to the link 44 so that the upper and lower rod fixing plates 70 in which the shaft rod 151 is installed, and the upper side of the shaft rod 151 are connected to the link 44 so as to rotate 90 degrees. And the arm 43 is a first cylinder 40 connected to the rod 41 through the bracket 42, the lower body of the shaft rod 151 and the rotating body installed to rotate integrally with the gear 60 (190), the lower end of the rotating body 190, the bite 191 is installed to process the branch pipe to a certain height, and the motor shaft is installed in one direction of the upper and lower rod fixing plate 70 in the vertical direction ( 180, the belt 170 connected to the pulley 160 and the rotating body 190 installed on the motor shaft of the motor 180, and the shaft rod 151 of the A semicircular groove is provided at the lower end of the elliptical rod punch 150 installed to perforate the metal pipe 100, and the metal pipe 100 cut to a predetermined size on the lower side spaced apart from the rod punch 150. The upper and lower dies 2 and 3 formed therein, a clamp 120 for fixing both ends of the metal pipes 100 seated on the upper and lower dies 2 and 3, and inside the metal pipes 100. Branch pipe manufacturing apparatus of a metal pipe, characterized in that consisting of a burring punch 30 is inserted and fixed.

The method of claim 3, wherein
The burring punch 30 has a lower end convex and a coupling hole 32 connected to the punch connector 33 on the side and a perforated oval hole 31 formed on the upper side, and the burring punch 30 Branch pipe manufacturing apparatus of a metal pipe, characterized in that installed perpendicular to the position of the branch pipe 101 of the metal pipe (100).

The method of claim 4, wherein
The clamp 120 is connected to the clamp link, the clamp link and the second cylinder 121 is connected to the lower side, the metal pipe seated on the upper, lower die (2, 3) by the second cylinder 121 ( Branch pipe manufacturing apparatus of a metal pipe, characterized in that for loosening and fixing both ends of 100).

6. The method of claim 5,
The cylinder rod 141 of the cylinder 140 is reversed and the rod punch 150 fixed to the lower end of the shaft rod 151 moves the burring punch 30 to the upper part and is perforated in the metal pipe 100. Burring punch (30) portion to the outside burring portion to form a T-shaped branch pipe 101, characterized in that the pipe pipe manufacturing apparatus of the metal pipe.

In the branch pipe manufacturing apparatus of the metal pipe,
The fixed frame 110 is installed on the upper part of the base fixture 1, the main cylinder 140, the cylinder rod 141 is installed on the lower side of the fixing frame 110, and the cylinder rod 141 is a plurality of An arm 43 is connected to the link 44 so that the upper and lower rod fixing plates 70 in which the shaft rod 151 is installed, and the upper side of the shaft rod 151 are connected to the link 44 so as to rotate 90 degrees. And the arm 43 is a first cylinder 40 connected to the rod 41 through the bracket 42, the lower body of the shaft rod 151 and the rotating body installed to rotate integrally with the gear 60 (190), the lower end of the rotating body 190, the bite 191 is installed to process the branch pipe to a certain height, and the motor shaft is installed in one direction of the upper and lower rod fixing plate 70 in the vertical direction ( 180, the belt 170 connected to the pulley 160 and the rotating body 190 installed on the motor shaft of the motor 180, and the shaft rod 151 of the A semicircular groove is provided at the lower end of the elliptical rod punch 150 installed to perforate the metal pipe 100, and the metal pipe 100 cut to a predetermined size on the lower side spaced apart from the rod punch 150. The upper and lower dies 2 and 3 formed therein, a clamp 120 for fixing both ends of the metal pipes 100 seated on the upper and lower dies 2 and 3, and inside the metal pipes 100. The punching position fixing body 200 inserted and fixedly installed, and the burring punch insertion hole 201 of the punching position fixing body 200 is provided with a burring punch 230 having an elliptical hole 231 formed thereon. Branch pipe manufacturing apparatus of a metal pipe.

The method of claim 7, wherein
The punch position fixing body 200 has a coupling hole 204 for connecting the punch connector on both sides and a burring punch insertion hole 201 and guide grooves 202 on both sides of the burring punch insertion hole 201. A rib support jaw 203 is formed in the formed inside, and the burring punch 230 inserted into the burring punch insertion hole 201 is formed at both sides of the guide rib 232 and the upper part so as to be inserted into the guide groove 202. A circular hole 233 is formed so that the rod punch 150 is inserted and rotated below the inner center in which the perforating oval hole 231 is formed, and the burring punch 230 has the punch position fixing body 200. ) Installed to move up and down, and the branch pipe manufacturing apparatus of a metal pipe, characterized in that installed vertically in the branch pipe 101 position of the metal pipe (100).

The method of claim 8,
The cylinder rod 141 of the cylinder 140 is reversed and the rod punch 150 fixed to the lower end of the shaft rod 151 moves the burring punch 230 to the upper and is perforated in the metal pipe 100. Burring punch 230 is a portion burring outward to form a T-shaped branch pipe 101, characterized in that the branch pipe manufacturing apparatus of the metal pipe.