KR100929105B1 - Metal pipe boring apparatus for diverging pipeline - Google Patents

Abstract

PURPOSE: A metal pipe boring apparatus for pipeline branching is provided to prevent metal cut chips and residues from being flowed into a pipeline by collecting metal cut chips and residues immediately. CONSTITUTION: A metal pipe boring apparatus for pipeline branching is composed of a joining cap(110), a rotation shaft(120), a boring tool(130), and a magnet(140). The joining cap is combined to a branch connector installed to a metal pipe and has an insertion hole(112). The rotation shaft is combined to the joining cap to be rotated and moved through the insertion hole. The rotation shaft has a clamping unit(121) and a tool mounting unit(123). The clamping unit is combined to a clamp of an electric rotating device. The boring tool is mounted to the tool mounting unit and is rotated with the rotation shaft. The boring tool has an annular cutting blade(131). The magnet is installed at one side of the boring tool. Cut chips and residues generated in boring are attached to the magnet.

Description

Metal pipe boring device for pipe branch {METAL PIPE BORING APPARATUS FOR DIVERGING PIPELINE}

The present invention relates to a punching device for forming a hole in the metal pipe for branching pipes, and more particularly to prevent the foreign matter from entering into the pipeline by collecting the cutting chips and residues generated during the drilling by magnetic force. It relates to a metal pipe boring device for pipe branch which can be.

In the pipeline for transporting various fluids such as city gas, fuel gas supply pipe, steam supply pipe, raw material gas supply pipe, and waste gas discharge pipe, branch pipes are connected to the existing pipe line when pipe connection is required to a new source or discharge source. Done. Such a fluid transfer pipe is usually made of a metal material including steel, and performs the branching of the pipe by connecting the branch pipe to the perforated part by performing a punching operation in the pre-installed metal pipe.

As shown in FIG. 1, a conventional metal pipe fabricator used for branching pipes is rotatably penetrated through a coupling cap 10 having a handle 11 at both sides, and rotatably coupled to a central portion of the coupling cap 10. Drilling tool (20) is provided with a rotating shaft (20) having a clamping portion (21) coupled to an electric rotary device (drill machine) at the top, and a cutting blade (23) formed at the lower end of the rotary shaft (20) in an annular shape. 22).

The fabric mill is coupled to the fastening cap 10 to the branch connector (service tee) that is first installed in the pipeline for branching operation, by coupling the drive unit of the electric rotating device to the clamping portion 21 of the rotating shaft 20 When the drilling tool 22 is rotated, a part of the metal pipe may be drilled in a circular shape by the cutting blade 23 to form a hole for connecting the branch pipe.

When the punching operation is performed as described above, a large amount of cutting chips (metal powder) is generated in the cutting portion, and a circular residue is left inside the cut portion. In the related art, the cutting chips and the residue are introduced into the tube. Since there was no means to prevent, there is a problem that a lot of time and manpower is wasted in branching the pipe line by requiring a separate operation for removing the cutting chips and residues introduced into the pipe after the drilling operation.

In particular, the above drilling operation is often performed in the state that the fluid is transferred to the inside of the pipeline, that is, the state of the tube, it is very important to prevent the leakage of gas during operation in the case of the pipeline for transporting flammable or toxic gas such as fuel gas. Because it is important, the removal of foreign substances introduced into the pipeline requires dedicated equipment and professional manpower and takes more time, and it is more difficult to completely remove the foreign substances introduced through the removal work.

The present invention is to solve the problems as described above, the metal pipe for branching pipes to collect immediately so that the cutting chips and residues generated during the drilling operation does not flow into the pipe to eliminate the need for additional post work to remove the foreign matter The purpose is to provide a mill factory value.

The present invention for achieving the above object is a coupling cap coupled to the branch connector is installed in the pipe metal pipe, the insertion hole is formed in communication with the center portion up and down; A rotating shaft coupled to the fastening cap so as to be rotatable and movable through the insertion hole and having a clamping portion coupled to a clamp of an electric rotating apparatus at an upper portion thereof and a tool mounting portion at a lower portion thereof; A drilling tool coupled to the tool mounting portion of the rotary shaft and rotated together with the rotary shaft, and having a cutting blade in an annular shape at a lower portion thereof; And it is provided on one side of the drilling tool provides a metal pipe fabrication factory for pipe branch including a magnet to which the cutting chips and residues generated during drilling are attached.

The fabric mill of the present invention, the shaft hole is formed in the longitudinal direction in the center of the rotating shaft, the inner shaft is inserted and coupled to the shaft hole movably, the magnet is coupled to the lower end of the inner shaft and the inside of the drilling tool It may be made of a structure that is moved to the outside.

In this case, it is preferable that the cover is coupled to surround the outside of the magnet to prevent the cutting chips and residues from directly adhering to the surface of the magnet and to be separated from the magnets so as to remove the cutting chips and residues. .

The cover may be provided in a case shape including an upper cover inserted into and coupled to an upper portion of the magnet, and a lower cover inserted into and coupled to the lower portion of the magnet and the upper cover.

In addition, the cover may be provided in the form of a bag made of a soft material.

Metal tube fabricator of the present invention, the shaft hole is formed in the longitudinal direction in the center of the rotating shaft, the inner shaft is inserted and coupled to the shaft hole movably, the magnet is fixed to the inside of the drilling tool, the lower portion of the magnet A cover of a container shape having an upper opening is detachably inserted and coupled to each other, and a through hole is formed in the magnet so that the lower end of the inner shaft is coupled to the cover through the through hole.

In addition, the long hole is formed in the longitudinal axis in the longitudinal axis, it may be made of a structure having an operating knob coupled to the side of the inner shaft through the long hole to apply a moving force to the inner shaft.

In addition, the fabric factory of the present invention is the magnet is made of an electromagnet, the insertion hole of the fastening cap is provided with a pair of fixed electrodes connected to the power line, the outer peripheral portion of the rotating shaft is capable of energizing the fixed electrode A pair of rotating electrodes connected to the coil of the magnet is provided at a position, and at least one side of the fixed electrode and the rotating electrode may have an annular structure.

According to the present invention as described above has the following advantages.

(1) Metal cutting chips and residues generated during drilling work are attached to magnets and magnetized drilling tools to prevent cutting chips and residues from entering the pipeline in advance, so that contamination of pipes and related facilities The risk of damage can be eliminated, and no additional work is required to remove the cutting chips and residues introduced into the pipe after the drilling work, thereby reducing the time and manpower required for branching the pipe.

(2) By moving the internal shaft inserted inside the rotating shaft to draw out the magnet to the outside of the drilling tool, the magnet can be withdrawn after the completion of the drilling work to easily and easily remove the attached cutting chips and residues. And convenience is improved.

(3) By having a removable cover surrounding the outside of the magnet so that the cutting chips and residues are attached to the outer surface of the cover, the cutting chips and the residues can be separated simply by removing the cover to further improve work efficiency and convenience. Can be.

(4) By allowing the inner shaft to move through the operating knob located on the side of the rotating shaft, the magnet or the cover can be easily and conveniently moved without any tools, and the inner shaft and the shaft hole are provided only at the lower part of the rotating shaft. It is shortened and does not need a separate sealing means to prevent the leakage of fluid, the structure is simple, light weight and can reduce the manufacturing cost.

(5) Equipped with a fixed electrode and a rotating electrode so that power is supplied to the electromagnet even when the rotating shaft is rotated, so that cutting chips and residues can be easily collected and removed only by supplying and cutting off power, thereby improving work efficiency and convenience. It is improved, the structure is simple and light weight because no magnet movement means and no fluid leakage prevention means are required.

The objects, features and advantages of the present invention described above will become more apparent from the following detailed description. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 are a perspective view and a cross-sectional view showing a first embodiment of a metal pipe drilling device for pipe branch according to the present invention.

As shown, the metal tube cloth mill of the present invention, the rotary shaft 120 is coupled to the center portion of the fastening cap 110 up and down, the drilling tool 130 is mounted to the lower portion of the rotary shaft 120, The magnet 140 is provided inside the drilling tool 130.

The fastening cap 110 is to prevent the fluid inside the pipeline from leaking to the outside during the drilling operation, it is fastened to the end of the branch connector (not shown) installed outside the pipeline to block the portion to be drilled to the outside.

An insertion hole 112 is formed in the central portion of the fastening cap 110 to allow the rotation shaft 120 to be rotatable and movable, and to seal a gap with the rotation shaft 120 on an inner circumferential surface of the insertion hole 112. As a means for providing a ring groove 115 for engaging the O-ring. In some cases, a ring groove may be provided on the outer circumferential surface of the rotation shaft 120. In addition, the outer both sides of the fastening cap 110 is provided with a pair of handles 111 extending in the radial direction.

The rotary shaft 120 is to rotate the drilling tool 130 by transmitting the rotational force of the electric rotary device, the upper portion is provided with a clamping portion 121 coupled to the clamp of the electric rotary device, the lower drilling tool ( The tool mounting part 123 to which the 130 is coupled is provided. In addition, the stopper 125 to maintain the coupling position with the fastening cap 110 is coupled.

A shaft hole 122 is formed in the center of the rotation shaft 120 in the longitudinal direction, and the inner shaft 133 is inserted into the shaft hole 122 to be movable. At least one side of the inner circumferential surface of the shaft hole 122 and the outer circumferential surface of the inner shaft 133 is formed with a ring groove 126 to which the O-ring is coupled.

The upper end of the inner shaft 133 is exposed to the outside so as to press the inside of the shaft hole 122, the lower end is projected out of the shaft hole 122 is coupled to the magnet 140.

In this embodiment, the magnet 140 is made of a permanent magnet. The magnet 140 is coupled to the lower end of the inner shaft 133 and is located inside or outside the drilling tool 130 as the inner shaft 133 moves.

The drilling tool 130 is provided with a cutting blade 131 in an annular shape at the lower end of the body formed in a cylindrical shape to punch a circular hole in the metal tube, the downward opening so that the magnet 140 is accommodated or moved to the outside Internal space is provided.

The fabric mill of the present invention configured as described above, the rotating shaft 120 in a state in which the fastening cap 110 is coupled to the branch connector so that the cutting blade 131 of the drilling tool 130 is in close contact with the drilling portion of the tube. When the clamp of the electric rotating device is connected to the clamping unit 121 of the) and the electric rotating device is operated, the drilling tool 130 may be rotated together with the rotating shaft 120 to drill a circular branch hole in the tube.

When the drilling operation is performed as described above, the cutting chips (metal powder) generated at the portion cut by the cutting blade 131 and the remaining residues of the cut circle are magnetized by the magnet 140 and the magnet 140. It is attached to the drilling tool 130.

In addition, after the drilling operation is completed, if the upper end portion of the inner shaft 133 is pushed toward the inside of the shaft hole 122 by using a rod or the like, the magnet 140 moves in accordance with the movement of the inner shaft 133. 130) the cutting chips and residues introduced into the drilling tool 130 are discharged to the outside while being drawn out. When the magnet 140 is completely withdrawn to the outside of the drilling tool 130, the magnetization of the drilling tool 130 is released to remove the cutting chips attached to the drilling tool 130, the cutting chips attached to the magnet 140 and remaining The water can be removed by brushing or brushing it off.

As described above, the metal pipe fabricator for pipe branch of the present invention collects the metal cutting chips and residues generated during the drilling operation by using the magnet 140, so that the cutting chips and the residues are introduced into the pipeline in advance. It can prevent the contamination and damage of pipes and related equipments due to foreign matters, and it does not need any additional work to remove cutting chips and residues introduced into the pipes after drilling. This has the advantage of saving time and manpower.

Figure 4 shows a second embodiment of a metal pipe drilling apparatus for pipe branch according to the present invention.

In the illustrated second embodiment, the cutting chip and the residue attached to the magnet 140 may be more conveniently removed after the drilling operation, and the drilling tool 130 may be disposed at the lower portion in the same manner as the first embodiment. The mounted rotary shaft 120 is rotatably coupled to the fastening cap 110 so as to be movable, and the magnet 140 is coupled to the lower portion of the inner shaft 133 which is movably embedded in the rotary shaft 120. In accordance with the movement of the inner shaft 133 is made of a structure in which the magnet 140 is inserted into the inside of the drilling tool 130 or withdrawn to the outside, the cover (141, 142) is provided on the outside of the magnet 140 In addition, the operating knob 128 is provided as a moving means of the inner shaft 133.

The covers 141 and 142 surround the magnet 140 to prevent cutting chips and residues from being directly attached to the surface of the magnet 140, and have a prefabricated structure that can be easily separated from the magnet 140. In the illustrated embodiment, the upper cover 142 surrounding the upper portion of the magnet 140 and the lower cover 142 surrounding the lower portion of the magnet 140 are fitted to each other, and the upper cover 142 and the lower cover 141 As a means for maintaining a coupled state, the fixing protrusions that are caught on the upper surface of the upper cover 142 on the upper portion of the lower cover 141 is projected inward.

In addition, the operation knob 128 is for moving the inner shaft 133 on the side of the rotary shaft 120, the long hole 129 is formed in the longitudinal axis in the longitudinal direction of the rotary shaft 120, this long hole 129 The operating knob 128 is coupled to the side of the inner shaft 133 through.

The fabric mill of the second embodiment as described above is attached to the outer surface of the cover chips (141, 142) surrounding the magnet 140, the cutting chip and the residue generated during the drilling operation, the fabric opening 130 ) After drawing out to the outside, only the upper cover 142 and the lower cover 141 are separated, so that the cutting chip and the residue are separated, thereby improving work convenience and efficiency.

In addition, since the magnet 140 can be moved in and out of the drilling tool 130 simply and conveniently by using the operation knob 128 without a separate tool, work efficiency and convenience are further improved. In addition, the shaft hole 122 into which the inner shaft 133 is inserted may be formed only in a part of the rotation shaft 120, and there is no fear that the fluid leaks through the shaft hole 122 so that a separate sealing means is not necessary. In addition, it is possible to meet the required strength while reducing the weight of the rotating shaft, and to reduce the manufacturing cost.

On the other hand, the cover may be made of a variety of structures that can be combined and separated to surround the magnet, as well as the prefabricated case structure as described above. For example, as in the third embodiment of the present invention shown in FIG. 5, a cover 143 in the form of a bag may be provided. In this case, the cover 143 is preferably made of a soft resin, such as rubber, silicone, vinyl, and the like, using a binding member 144 such as a wire in a state in which the magnet 140 is accommodated therein as illustrated. It is also possible to seal the inlet portion, and, if made of a high elastic material, it is also possible to maintain the state of enclosing the magnet 140 by its elasticity after the magnet 140 is introduced with a narrow inlet.

In the case of the third embodiment, when the drilling operation is completed, the magnet 140 may be taken out to the outside, and the cutting chip and the remaining residue may be easily removed by removing the cover 143.

Figure 6 shows a fourth embodiment of the drilling apparatus according to the present invention, which is provided with a cover 148 surrounding the outside of the magnet 140, similar to the second and third embodiments described above, 140 is fixed and the cover 148 is moved.

That is, the cloth mill according to the fourth embodiment is a magnet 140 is fixed to the inner upper surface of the drilling tool 130, the cover of the container form 148, the top of which is opened in the lower portion of the magnet 140 is detachably inserted. The through hole 149 is formed in the magnet 140, and the lower end of the inner shaft 133 is coupled to the cover 148 through the through hole 149.

Accordingly, when the drilling operation is completed, the cover 148 is pulled out to the outside of the drilling tool 130 while the inner shaft 133 is pushed downward, and the cutting chips and residues are pushed out to remove the cutting chips and residues easily. You can do it.

Meanwhile, in the above-described embodiment, the magnet is made of a permanent magnet, but as in the fifth embodiment of FIG. 7, the present invention may have a structure having an electromagnet 150 as a magnet.

The cloth mill of the fifth embodiment shown is a rotary shaft 120 is coupled to the fastening cap 110 to be rotatable and rotatable, the drilling tool 130 is mounted to the lower portion of the rotary shaft 120, the drilling tool ( The electromagnet 150 is fixedly installed inside the 130.

As a means for supplying power to the electromagnet 150, the power line 155 connected to the plug 156 is connected to one side of the fastening cap 110, the inner peripheral surface of the insertion hole 112 of the fastening cap 110 A pair of fixed electrodes 154 to which the power line 155 is connected are provided.

In addition, the outer circumferential surface of the rotary shaft 120 is provided with a pair of rotary electrodes 153 that are respectively energized with the fixed electrode 154, a pair of wires 151 connected to the coil of the electromagnet 150 is It is wired through a passage 122 formed inside the rotating shaft 120 and connected to each rotating electrode 153.

At least one side of the fixed electrode 154 and the rotating electrode 153 is formed in an annular shape so that the energized state can be maintained when the rotating shaft 120 rotates, and bent or bent to maintain a stable contact state by elasticity. It is preferred to be formed in the form. In addition, although not separately illustrated, a portion around the fixed electrode 154 of the fastening cap 110 and a portion around the rotating electrode 153 of the rotating shaft 120 are insulated.

When the drilling machine of the fifth embodiment as described above rotates the drilling tool 130 to perform the drilling work, the plug 156 is connected to a power source, and the fixed electrode 154 and the rotating electrode 153 are energized. Activate 150. Accordingly, the cutting chip and the residue generated during the drilling are attached to the electromagnet 150 and the drilling tool 130.

After the drilling operation is completed, when the plug 156 is disconnected from the power source or the rotating shaft 120 is moved in the longitudinal direction to separate the fixed electrode 154 and the rotating electrode 153, the power supplied to the electromagnet 150. This cuts off the cutting chips and residues that were attached.

As described above, the fabric mill of the fifth embodiment can easily remove the cutting chip and the residue simply by cutting off the power supplied to the electromagnet 150, thereby improving work efficiency and convenience.

Meanwhile, in the fifth embodiment, the fixed electrode 154 and the rotating electrode 153 are connected to or separated from each other according to the position of the rotary shaft 120 without providing a separate switch. The fixed electrode 154 and the rotary electrode 153 may be provided with a switch having a variety of structures to control the energization and disconnection. For example, the rotating electrode 153 is formed in an annular shape, the fixed electrode 154 is installed to be movable in the radial direction of the fastening cap 110, the fixed electrode 154 is the rotating electrode 153 ) May be configured to have a switch that moves to contact or separate.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a front view showing a conventional metal pipe fabricator for a pipe branch.

Figure 2 is a perspective view showing a first embodiment of a metal pipe drilling apparatus for pipe branch according to the present invention.

Fig. 3 is a sectional view showing the fabric mill of the first embodiment.

Figure 4 is a cross-sectional view showing a second embodiment of the metal pipe drilling apparatus for pipe branch according to the present invention.

5 is a sectional view showing the principal parts of a third embodiment of a metal pipe drilling apparatus for pipe branch according to the present invention.

6 is a sectional view showing the principal parts of a fourth embodiment of a metal pipe drilling apparatus for pipe branch according to the present invention.

7 is a cross-sectional view showing a fifth embodiment of the metal pipe drilling apparatus for pipe branch according to the present invention.

<Description of the reference numerals for the main parts of the drawings>

110: fastening cap 111: handle

112: insertion hole 115: ring groove

120: rotation axis 121: clamping portion

122: shaft hole 123: tool mounting portion

125: stopper 126: ring groove

128: operation knob 129: long hole

130: drilling tool 131: cutting blade

140: magnet 141: top cover

142: lower cover 143, 148: cover

150: electromagnet 151: electric wire

153: rotating electrode 154: fixed electrode

155: power line 156: plug

Claims (8)

A coupling cap coupled to the branch connector installed in the piped metal pipe, the insertion cap having an insertion hole communicating vertically with the center portion; A rotating shaft coupled to the fastening cap so as to be rotatable and movable through the insertion hole and having a clamping portion coupled to a clamp of an electric rotating apparatus at an upper portion thereof and a tool mounting portion at a lower portion thereof; A drilling tool coupled to the tool mounting part of the rotary shaft and rotated together with the rotary shaft, and having a cutting blade at a lower portion thereof; And It is provided on one side of the drilling tool and includes a magnet that is attached to the cutting chip and the residue generated during drilling, A shaft hole is formed in the center of the rotating shaft in the longitudinal direction, and the inner shaft is inserted and coupled to the shaft hole so as to be movable, and the magnet is coupled to the lower end of the inner shaft to move inside and outside the drilling tool, and the outside of the magnet. A metal pipe for branching, which is coupled to surround the magnet, is provided with a cover which prevents the cutting chips and residues from directly adhering to the surface of the magnet and removes the cutting chips and residues from the magnets. Perforation device. delete delete The method of claim 1, The cover is a pipe branch metal pipe drilling apparatus, characterized in that provided in the form of a case including a top cover inserted and coupled to the upper portion of the magnet and the lower cover inserted and coupled to the lower portion of the magnet and the top cover. The method of claim 1, The cover is a metal pipe perforation device for pipe branch, characterized in that provided in the form of a bag made of a soft material. delete The method according to any one of claims 1, 4, and 5, The long hole is formed in the longitudinal axis in the longitudinal axis, the metal pipe drilling device for pipe branch, characterized in that provided with an operating knob coupled to the side of the inner shaft through the long hole to apply a moving force to the inner shaft. delete

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