KR101661069B1

KR101661069B1 - forming jig

Info

Publication number: KR101661069B1
Application number: KR1020150130739A
Authority: KR
Inventors: 김선오
Original assignee: 금성볼트공업 주식회사
Priority date: 2015-09-16
Filing date: 2015-09-16
Publication date: 2016-09-28

Abstract

The present invention relates to a forming jig and, more specifically, relates to a forming jig for forming a protrusion unit in the direction toward the outside by extending and opening the edge of a hole of a pipe as a cylinder is pulled out to the outside of the pipe with respect to the elevation of the cylinder, after the pipe formed with the hole on the outer circumferential surface is inserted into the hole and coupled to the cylinder. The forming jig (145) is formed in a truncated cone shape, which comprises: a groove (149) formed on an upper surface; and a spiral formed on the inner circumferential surface of the groove (149). The forming jig of the present invention produces products with an accurate and uniform quality, thereby improving the productivity and the work efficiency.

Description

Forming jig

The present invention relates to a forming jig used when forming a hole in a pipe and then forming a protrusion so that the connection pipe can be easily coupled to the hole.

Typically, a plastic pipe used for transporting a liquid or a fluid is a small-diameter pipe of 15 mm or a large-diameter pipe of 400 mm or more. The plastic pipe for transporting the fluid or liquid is connected to the longitudinal direction of the pipe, and depending on the condition of the terrain,

Sometimes you need to bend to "b" or connect with a "T".

As a conventional technique, according to Patent Registration No. 10-0741373 (Tube tube forming machine for piping), the above-mentioned tube-forming machine for piping is used for the purpose of improving productivity in a large pipe and producing a product of precise and uniform quality (T) tube forming machine for piping which is designed to reduce the size of the molding machine and install it in a small space by placing the piping material to be formed on the lower mold from the outside of the molding machine and putting it into the molding machine An extracting unit provided with an extracting cylinder at the center of a front side where the front and lower dies of the lower mold are stopped, and a compression cylinder installed at an upper portion of the lower mold; An upper mold, a tamping portion having an elastic cylinder mounted on the lower bottom surface of the central position of the upper mold, and a molding cylinder disposed on the left and right sides, respectively .

As another conventional technique, according to Registered Patent Publication No. 10-0702439 (Tee-type pipe manufacturing method), the Tee-type pipe manufacturing method includes a main pipe having an insertion port H formed therein; A branch pipe inserted into the insertion port H so that the insertion portion is extended to the inside of the main pipe; And a heater installed inside the inserting portion of the branch pipe and having a lower portion formed on the lower portion and connected to the upper portion by means of a connecting member so as to be movable up and down including a hydraulic cylinder, , It relates to a method of manufacturing a Tee-type pipe which is excellent in workability and can reduce the input manpower.

However, in the conventional method as described above, there is a problem that the production time is long, the production amount is limited, and the efficiency of the operation is low because the product can not be used.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a forming jig that produces a precise and uniform quality product, thereby improving work efficiency and productivity.

The present invention relates to a forming jig, which is inserted into a hole of a pipe having a hole formed in an outer periphery thereof and is fastened to a cylinder and then pulled out of the pipe as the cylinder is lifted and lowered, Wherein the forming jigs 145 are formed in a frustum shape with a groove 149 formed on an upper surface thereof and a spiral formed on an inner circumference of the groove 149 do.

Therefore, the forming jig of the present invention has a remarkable effect of improving work efficiency and productivity by producing precise and uniform quality products.

1 is a front view of a tee-forming machine of the present invention;
2 is a cross-sectional view of the transporting bed of the present invention
3 is a cross-sectional view of the fixing chuck of the present invention
4 is a perspective view of the pipe of the present invention.
5 is an enlarged photograph of the transporting bed of the Tipping machine of the present invention
Fig. 6 is a cross-
7 is a bottom view of the forming jig used in the present invention
8 is a photograph of the forming jig tray used in the present invention
9 is a photograph showing a state in which the pipe fixing part of the tee forming part of the present invention is lowered
Fig. 10 is a photograph showing a state in which the tee forming cylinder is lowered in Fig. 9

The forming jig 145 is inserted into the pipe in a state of being placed on the upper surface of the forming jig tray 41 having a long length in the longitudinal direction of the pipe and positioned below the hole formed in the pipe, 144 and is pulled out of the pipe. The connecting rod 144 and the forming jig 145 are screwed together.

The forming jig tray 41 is formed with a rectangular hole 42 passing through the top and bottom and a rectangular protrusion 147 having a rectangular vertical cross section is formed on the bottom surface of the corresponding forming jig 145 .

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

Fig. 1 is a front view of the tee-forming machine of the present invention, Fig. 2 is a cross-sectional view of the conveying bed of the present invention, Fig. 3 is a cross-sectional view of the fixing chuck of the present invention, Fig. 6 is a photograph of the bottom surface of the forming jig used in the present invention, Fig. 7 is a photograph of the tee forming part of the present invention, Fig. 8 is a photograph of the forming jig tray used in the present invention, Fig. 10 is a photograph of the state in which the tee-forming cylinder is lowered in Fig. 9; Fig.

The tipping machine used in the present invention includes a support frame 110; A conveying bed 120 installed on the upper surface of the support frame 110 to forward and retract the pipe 10 seated on the upper part; Left and right fixing chucks 125 and 126 for fixing the pipe 10 seated on the transporting bed 120; A drill part 130 installed on the upper side of the support frame 110 to form a hole 11 in the pipe 10; A te forming unit 140 that inserts the forming jig 145 into the hole 11 formed in the pipe 10 by the drill unit 130 and pulls outward to form the protrusion 12; And a cutting unit 150 cutting the upper end of the protrusion 12.

The conveying bed 120 is installed on the upper surface of the support frame and is moved back and forth in the longitudinal direction of the support frame 110. The conveying bed 120 is coupled to the upper surface of the conveying bed 120, A rail groove 121 is formed on the upper surface of the conveying bed 120 in the longitudinal direction and a lower surface of the V block 122 corresponding to the rail groove 121 is formed And the V-block 122 is fitted into the conveying bed 120. The V-

The tee forming unit 140 includes a pipe fixing table 141 which fixes the pipe 10 by pressing the pipe 10 at the upper portion thereof and a forming jig 145 inserted into the hole 11 of the pipe 10 And a tee forming cylinder 143 for pulling out the tee.

The present invention relates to a forming jig used for forming a hole in a pipe and then forming a protrusion for easily coupling the connection pipe to the hole, And is then pulled out of the pipe as the cylinder is lifted and lowered.

The foaming jig 145 has a truncated conical shape, and a groove 149 is formed on the upper surface thereof, and a spiral is formed on the inner circumference of the groove 149.

(The truncated cone is a figure consisting of two sides of a truncated cone that are cut into parallel planes, one of which does not contain the corner point of the cone, and the other is the truncated side.)

The forming jig 145 is coupled to the cylinder by a connecting rod 144. The connecting rod is connected to the end of the connecting rod in a helical groove formed on the upper surface of the forming jig, Explain it in detail.

The forming jig 145 is inserted into the pipe in a state of being seated on the upper surface of the forming jig tray 41 having a long length in the longitudinal direction of the pipe, then is fastened to the connecting rod 144, A rectangular hole 42 is formed in the forming jig tray 41 so as to pass through the top and bottom of the forming jig tray 41. A rectangular protrusion 147 having a rectangular vertical cross section is formed on the bottom surface of the corresponding forming jig 145.

The forming jig prevents the pipe from being distorted during the forming process by changing the angle of the taper according to the standard of the pipe. For example, when the pipe is used for a 20A pipe having an outer diameter of 27.2 mm, When the tapered inclination of the jig is formed to be 13.07 占 and the taper inclination of the forming jig is formed to have 14.04 占 when the pipe is used for a 25A pipe having an outer diameter of 34mm, When the tapered inclination of the forming jig is 15.57 deg. And the outer diameter is 48.6mm, when used for a pipe of the 40A standard, the taper of the forming jig is formed to have a slope of 16.26 deg.

Hereinafter, a teaming machine in which the forming jig of the present invention is used will be described.

The tie-forming machine includes a support frame, a transporting bed installed on the upper surface of the support frame and back and forth and having a pipe mounted thereon, a left and right fixing chuck for fixing the pipe mounted on the transporting bed, And a cutting portion for cutting the upper end of the protruding portion, wherein the protruding portion is formed by pulling the forming jig into the hole formed by the drill portion, do.

The conveying bed is installed on the upper surface of the support frame and moves back and forth in the longitudinal direction of the support frame, the V block is coupled to the upper surface, and the pipe is seated on the V block.

In addition, a rail groove is formed on the upper surface of the conveying bed in a longitudinal direction, a fitting protrusion is formed on the lower surface of the V block corresponding to the rail groove, and the V block is fitted into the conveying bed, It is easily moved.

As shown in FIG. 2, on the upper surface of the transporting bed,

', And a vertical cross section is formed on the lower surface of the V block,

And a V-block is fitted to the conveying bed.

In addition, the pipe is seated on the upper surface of the V-block, and the operator replaces the V-blocks of various sizes according to the diameter of the pipe so that the pipe can be stably positioned and the top dead center (position at the top end of the pipe) So that a precise work can be performed.

In the present invention, a coupling hole is formed on the side surface of the V-block to allow various sizes of V-blocks to be detached and attached. The operator has a plurality of various V-blocks to select and combine the appropriate V- .

5, a separation prevention plate is provided on the front side of the transporting bed, and a fixing rod is installed horizontally through the separation prevention plate. The fixing rod has a length of a pipe seated on the transporting bed To prevent the pipe from falling forward.

In addition, a latch is fixed to the upper portion of the separation preventing plate to penetrate both the upper surface of the separation preventing plate and the fixing rod to fix the fixing rod.

That is, the separation prevention plate is provided with a horizontal hole passing through the front and rear, and the fixing rod is coupled to the horizontal hole, the rear end of the fixing rod is bent upward,

A plurality of fixing grooves are formed on the upper surface of the fixing rod and the fixing rod is fixed by inserting the latches inserted into the fixing holes formed in the upper and lower parts of the upper surface of the separation preventing plate into the fixing grooves of the fixing rod .

On the other hand, a pair of left and right fixing chucks for fixing the pipe are installed on both sides of the V block on which the pipe is placed, and the left and right fixing chucks are opposed to each other such that pipes are positioned between the left and right fixing chucks, A pair of fixing chucks are stretched by a cylinder to fix the pipe.

In the present invention, not only the left and right fixing chucks are expanded and contracted at the same time but the left fixing chuck having a strong pressure is moved first and the right fixing chuck having a relatively weak pressure is moved next to press the pipe to minimize the error range of the pipe displacement point Respectively.

The left and right fixing chucks are formed in a plurality of pairs according to the needs of the user to stably fix the pipe mounted on the V-block.

In the meantime, a drill is provided on the upper part of the support frame, and the drill part forms a hole in a pipe conveyed by the conveying bed. The drill part includes a machining unit rotated by a drive motor, Cylinder, and the drill unit used in the present invention is a widely used conventional apparatus.

On the other hand, the pipe having the hole formed by the drill portion is moved to the lower portion of the tee forming portion, and a protrusion protruding upward is formed at the outer periphery of the pipe hole by the te forming portion.

The te forming unit comprises a pipe fixing table for fixing the pipe by pressing the pipe at the upper portion and a tee forming cylinder for pulling out the forming jig inserted inside the hole of the pipe.

As shown in Fig. 7, the operator inserts the forming jig into the hole of the pipe, tightens the forming jig with the te forming cylinder, and lifts the te forming cylinder to pull the forming jig out of the pipe. So that the outer periphery of the hole of the pipe projects to the upper portion of the hole.

The forming jig and the tee-forming cylinder for pulling the forming jig are coupled by a connecting rod, and the vertical cross-section of the connecting rod is circular,

Shaped connecting cylinder, the upper portion of the connecting rod is mounted on the tee-forming cylinder, and the lower portion is detachably engaged with the foaming jig.

A circular space is formed in a lower portion of the outer periphery of the Tee forming cylinder corresponding to the upper portion of the connecting rod. The inner space is formed to be wider than the inlet space so that the mounted connecting rod can not escape downward.

In addition, a screw surface is formed on the outer peripheral edge of the lower side of the connecting rod, and a screw surface is also formed on the inner peripheral upper portion of the forming jig coupled with the lower portion of the connecting rod.

The vertical section of the forming jig is formed in a trapezoidal shape having a lower area than the upper portion. The forming jig is inserted into the inside of the pipe, and the forming jig is pulled outward from the inside of the hole. And the protrusion is formed in the outward direction.

Further, in order to easily insert the forming jig into the pipe, the operator uses a long forming jig tray in the longitudinal direction of the pipe, wherein the tray is provided with a rectangular square hole penetrating vertically, A rectangular protrusion having a rectangular vertical cross section is formed on the bottom surface of the forming jig. The rectangular protrusion of the forming jig is seated in the square hole of the forming jig tray, so that the operator easily inserts the forming jig into the pipe.

As shown in FIGS. 9 and 10, in the present invention, two tee-forming cylinders are provided, and the two tee-forming cylinders are coupled to one coupling plate and operated at the same time, thereby improving productivity.

Further, in the present invention, an auxiliary cylinder is provided between a pair of tee-forming cylinders, a pair of tee-forming cylinders and an auxiliary cylinder are coupled to the engaging plate, and a pair of tee-forming cylinders and an auxiliary cylinder are expanded and contracted at the same time.

And a pair of mounting frames provided with spaces for mounting the forming jig are separately formed at the lower portion of the coupling plate without forming a space for mounting the forming jig on the outer peripheral bottom side of the tee forming cylinder, So that the position of the mounting frame can be adjusted according to the interval of the holes formed in the pipe, so that the projections can be formed at the same time.

Further, when the projecting portion is formed in the pipe by the tee-forming cylinder, the pipe is pressed by the pipe fixing table, and a pipe fixing cylinder is attached to the upper portion of the pipe fixing table.

According to an embodiment of the present invention, a pair of pipe holders are installed vertically, the pair of pipe holders are integrally coupled to each other by a horizontal frame, and a pipe fixing cylinder is coupled to an upper portion of the pipe holder, The pipe fixture simultaneously ascends and descends and presses the pipe steadily.

As shown in FIG. 7, a guide plate is coupled to the lower portion of the pipe fixture, and the vertical cross section of the guide plate is'

'Shape, and the lower part is formed concavely so as to stably press the pipe.

The guide plate is formed with a number of holes corresponding to the number of tee-forming cylinders through which the tee-forming cylinder passes, and a reinforcing rib is formed on the outer peripheral upper portion of the hole to reinforce the guide plate.

On the other hand, the pipe formed with the projecting portion in the te forming portion is transferred to the cutting portion, and the upper portion of the pipe projecting portion is smoothly followed by the cutting portion.

The cutting part is composed of a cutting tool rotated according to the driving of the motor and a cylinder coupled with the upper part of the cutting tool to move up and down the cutting tool. The cutting part used in the present invention is a well- The description is omitted.

In one embodiment of the present invention, the drill portion, the cutting portion, and the tee-forming portion are sequentially disposed in the advancing direction of the pipe on one side of the support frame. In the present invention, after the pipe passes through one process, And then transferred to the next process.

Further, the drill part, the cutting part and the te forming part used in the present invention can be controlled in speed, and the drill part, the cutting part and the te forming part descend at a low speed for the first time to form a pipe, We slow down and work steadily.

Hereinafter, a method of manufacturing a T-shaped pipe according to the present invention will be described.

First, a pipe is mounted on the upper part of the V block after the V block is connected to the transporting bed, and the fixed rod coupled to the front of the transporting bed is moved forward and backward to adjust the length of the pipe to fix the front end of the pipe .

Then, both sides of the pipe are fixed by the left and right fixing chucks, and the left fixing chuck with high pressure moves first, and the right fixing chuck with relatively low pressure then moves and presses the pipe.

The pipe fixed by the fixing chuck is moved together as the conveying bed is moved forward and is positioned at the lower part of the drill part, and a hole is formed in the outer periphery by the drill part.

Thereafter, the conveying bed on which the hole-formed pipe is placed is moved backward to the origin and then moved back to the lower portion of the te forming portion. The operator inserts the hole inner joining jig of the pipe, And then lifting the tee forming cylinder to pull the forming jig out of the pipe so that the outer periphery of the hole of the pipe projects to the top of the hole.

That is, the forming jig is inserted into the inside of the pipe and the forming jig is pulled from the inside to the outside of the hole, so that the hole edge of the pipe is elongated and expanded to form the protruding portion in the outward direction.

And when the protrusion is formed in the pipe by the tee forming cylinder, the pipe is pressed by the pipe fixture.

Finally, the tee forming part is moved back to the pipe origin where the protrusion is formed, and then is transferred to the cutting part, and the upper part of the pipe protrusion is smoothly moved by the cutting part.

10: pipe 11: hole
12:
100: T-forming machine
110: support frame 120: conveying bed
121: rail groove 122: V-block
123: engaging hole 124: engaging projection
125: left fixing chuck 126: right fixing chuck
21: release prevention plate 22: fixed rod
23: Clasp
130: drill part 140: tee forming part
141: pipe holder 142: pipe fixing cylinder
143: tee forming cylinder 144: connecting rod
145: forming jig 146: horizontal frame
147: Square projection 148: Guide plate
149: Home
41: forming jig tray 42: square hole
43: auxiliary cylinder 44: engaging plate
45: Mounting frame
150:
A: Cylinder

Claims

A groove 149 is formed on the upper surface of the groove 149 and a spiral is formed on the inner circumference of the groove 149. The groove is inserted into the hole of the pipe having the hole formed in the outer periphery thereof and fastened to the cylinder, And the projecting portion is formed on the pipe by being pulled out of the pipe as the cylinder is lifted and lowered,
The forming jig 145 is inserted into the pipe in a state where it is seated on the upper surface of the forming jig tray 41 having a long length in the longitudinal direction of the pipe and is positioned below the hole formed in the pipe, And the connecting rod 144 and the forming jig 145 are screwed together,
The forming jig tray 41 is formed with a square hole 42 passing through the top and bottom of the forming jig tray 41. A rectangular protrusion 147 having a rectangular vertical cross section is formed on the bottom surface of the corresponding forming jig 145,
The forming jig 145 is formed by using a different tapered surface of the forming jig 145 according to the outer diameter of the pipe so that the pipe is not distorted during the process of forming the protrusion 12 of the pipe.
When the outer diameter of the pipe is 27.2 mm, the tapered inclination of the forming jig 145 is 13.07 deg.
In the case where the outer diameter of the pipe is 34 mm, when the taper inclination of the forming jig 145 is 14.04 and the outer diameter of the pipe is 42.7 mm, the taper inclination of the forming jig 145 is 15.57 占 and the outer diameter of the pipe is 48.6 mm, the forming jig 145 has a tapered inclination of 16.26 DEG.

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