KR102433320B1 - Gas cutting machine having attaching type rails - Google Patents

Abstract

The present invention relates to a gas cutter with a detachable rail, comprising: a main body having a hollow part therein; a guide part provided on a lower side of the main body; and a rail part supported so that the guide part slides in the longitudinal direction of a long axis, wherein the rail part comprises a guide rail made of a flexible material. The guide part includes: one guide part supported on one side of the guide rail; the other guide part supported on the other side of the guide rail; and a guide roller provided to be rotatable along the guide rail on each of the one guide part and the other guide part. In a process of cutting using pneumatic pressure of oxygen, the cutting is performed while the main body moves along the guide rail made of flexible material. The main body adheres to a curved surface like an outer surface of a ship by the flexible guide rail so that the cutting can be performed.

Description

Gas Cutter with Removable Rails {GAS CUTTING MACHINE HAVING ATTACHING TYPE RAILS}

The present invention relates to a gas cutter equipped with a detachable rail for oxygen cutting operation.

In more detail, the cutting operation is performed while the main body moves along the guide rail of a flexible material in the process of performing the cutting operation using the pneumatic pressure of oxygen. It relates to a gas cutter equipped with a detachable rail that allows the main body to be in close contact with the cutting operation.

In general, in order to cut an object formed of an iron material, a welding device that generates a flame with oxygen and gas is used to cut the object.

Such a gas cutter has a problem in that the quality of the result is not excellent because the cut surface is uneven or cannot be cut to a certain width as the operator cuts the object after gripping the torch directly.

In order to solve this problem, in the prior art, a torch and the torch are supported, and various technologies have been developed so that the cutting operation is automatically performed before and after the cutting operation.

Such cutting devices are configured to perform a cutting operation while moving along the guide rail while being supported on a separate guide rail for forward and backward progress.

However, conventional cutting devices have a problem in that the curved cutting operation is difficult because the cutting operation is performed while moving along the straight guide rail. There is a problem in that accurate and stable cutting operation is not made because the separation distance of the cutting device is getting farther or closer to each other.

Registered Utility Model Publication No. 20-0202221 (Aug. 28, 2000)

The present invention has been devised to solve the above problems, and the problem to be solved in the present invention is that the cutting operation is performed while the main body moves along the guide rail of a flexible material in the process of performing the cutting operation using the pneumatic pressure of oxygen. However, it is to provide a gas cutter equipped with a detachable rail that allows the main body to be in close contact with a curved surface like the outer surface of a ship by a guide rail having flexibility to perform a cutting operation.

In addition, another problem to be solved in the present invention is to provide a guide roller provided on the lower side of the main body and supported on both sides of the guide rail, so that the distance between the guide roller provided on one side of the main body and the guide roller provided on the other side is adjusted, An object of the present invention is to provide a gas cutter provided with a detachable rail that allows the body to be easily attached to and detached from the guide.

In addition, another problem to be solved in the present invention is to slide the guide roller provided on one side of the body to one side and the other side, and an elastic member for elastically supporting the other side is provided, so that the guide roller supported on both sides of the guide rail is An object of the present invention is to provide a gas cutter provided with a detachable rail to be in close contact with the guide rail.

In order to solve the above problems, a gas cutter provided with a detachable rail according to the present invention includes: a body having a hollow part therein; a guide part provided on the lower side of the body; and a rail part supported so that the guide part slides in the longitudinal direction of the major axis; the rail part is configured to include a guide rail made of a flexible material, and the guide part comprises: a guide part on one side supported on one side of the guide rail; The other side guide part supported on the other side of the guide rail; and a guide roller provided to be rotatable along the guide rail on each of the one side guide part and the other side guide part;

In the present invention, the cutting operation is performed while the main body moves along a guide rail made of a flexible material in the process of performing the cutting operation using the pneumatic pressure of oxygen. It has a remarkable effect of making the cutting work to be done in close contact.

In addition, the present invention is provided with guide rollers provided on the lower side of the main body and supported on both sides of the guide rail, and by adjusting the distance between the guide rollers provided on one side of the main body and the guide rollers provided on the other side, the main body is easily attached to the guide part. It has a remarkable effect of making it easy to attach and detach.

In addition, the present invention is such that the guide roller provided on one side of the body slides to one side and the other side, and an elastic member for elastically supporting the other side is provided, so that the guide rollers supported on both sides of the guide rail are in close contact with the guide rail. Even if the shape of the guide rail made of a flexible material is deformed, the main body is stably supported by the guide rail while cutting has a remarkable effect.

1 is a perspective view of a gas cutter provided with a detachable rail according to the present invention.
Figure 2 is an exploded perspective view of a gas cutter equipped with a detachable rail according to the present invention.
Figure 3 is a rear perspective view showing the distributor in the gas cutter provided with a detachable rail according to the present invention.
Figure 4 is a partial perspective view showing a cut in the gas cutter provided with a detachable rail according to the present invention.
Figure 5 is a partial exploded perspective view showing the torch clamp in the gas cutter provided with a detachable rail according to the present invention.
Figure 6 is a partial exploded perspective view showing the power unit and the driving unit in the gas cutter provided with a detachable rail according to the present invention.
7 is a front view showing an example in which the gear unit of the driving unit is operated in the gas cutter provided with a detachable rail according to the present invention, (a) is a running state, (b) is a view showing a non-running state.
Figure 8 is a plane side cross-sectional view showing the guide portion in the gas cutter provided with a detachable rail according to the present invention.
9 is a side cross-sectional view showing a guide part in the gas cutter provided with a detachable rail according to the present invention.
10 is a front cross-sectional view showing a guide part in the gas cutter provided with a detachable rail according to the present invention.
11 is a view showing another embodiment of the guide roller in the gas cutter provided with a detachable rail according to the present invention.
12 is a perspective view showing a rail portion in the gas cutter provided with a detachable rail according to the present invention.
13 is a front cross-sectional view showing a rail portion in the gas cutter provided with a detachable rail according to the present invention.
14 is a plan view showing another embodiment of the guide rail in the gas cutter provided with a detachable rail according to the present invention.
15 is a perspective view showing a connection pin in the gas cutter provided with a detachable rail according to the present invention.
16 is a view showing an example in which a guide rail made of a flexible material is bent left and right in the gas cutter equipped with a detachable rail according to the present invention.
17 is a view showing an example in which a guide rail made of a flexible material is bent upward and downward in a gas cutter equipped with a detachable rail according to the present invention.

Advantages and features of embodiments of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And the terms or words used in the present specification and claims are terms defined in consideration of the functions in the embodiments of the present invention, and should not be construed as being limited to conventional or dictionary meanings, and the inventors are most likely to develop their own inventions. In order to explain in the best way, it should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that the concept of a term can be appropriately defined.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, so various equivalents that can be substituted for them at the time of the present application It should be understood that there may be variations and examples.

Hereinafter, prior to the description with reference to the drawings, it is not shown or specifically described for matters not necessary to reveal the gist of the present invention, that is, well-known configurations that can be added obviously by those skilled in the art. make it clear that

First, before describing various embodiments of the present invention in detail with reference to the accompanying drawings, directions (eg, "front", "back", "left") of the components described in the following detailed description or shown in the drawings , "right", "top", "bottom", "top", "bottom", "lateral", "longitudinal", "front", "rear", "one side", "other side", "medial" and " It does not simply indicate or imply that terms such as "outside") should have a specific direction, and the description of this direction is intended to facilitate description of the components with reference to the accompanying drawings.

In the gas cutting machine equipped with a detachable rail according to the present invention, the cutting operation is made while the main body 100 moves along the guide rail 710 of a flexible material in the process of performing the cutting operation using the pneumatic pressure of oxygen, but flexibility The guide rail 710 is installed to correspond to the curved surface like the outer surface of the ship by the guide rail 710 having It relates to a gas cutter provided with a detachable rail that is supported in the , the distance between the guide rollers 630 is adjusted by an elastic force so as to be in close contact with the guide rail 710 so that a more stable cutting operation is made.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the gas cutter equipped with a detachable rail according to the present invention.

1 is a perspective view of a gas cutter equipped with a detachable rail according to the present invention, Figure 2 is an exploded perspective view of a gas cutter equipped with a detachable rail according to the present invention.

The gas cutter equipped with a detachable rail according to the present invention is to make a stable cutting operation even on a curved surface such as the outer surface of a ship, the main body 100, the distributor 200, the cutting unit 300, the power unit 400 , including a driving unit 500 , a guide unit 600 , and a rail unit 700 .

When the body 100 is described with reference to FIGS. 1 and 2, it is made in the form of a housing having a hollow part therein, and a power unit 400 and a driving unit 500 to be described later are provided in the inner space by the hollow part. , so that the driving unit 500 is operated by the rotational force generated from the power unit 400 , so that the forward and backward operations of the main body 100 are made.

In addition, since the guide part 600 supported by the rail part 700 is provided on the lower side of the main body 100, the cutting operation is performed while the main body 100 moves along the guide rail 710 of the rail part 700. let it go

Figure 3 is a rear perspective view showing the distributor in the gas cutter provided with a detachable rail according to the present invention.

The distributor 200 is installed on the outside of the main body 100 to supply oxygen and gas, classifies the supplied oxygen into low-pressure oxygen and high-pressure oxygen and discharges it together with the gas, the gas supply unit 210, the gas Discharge unit 220, gas control unit 230, oxygen supply unit 240, low pressure oxygen discharge unit 250, low pressure oxygen control unit 260, high pressure oxygen discharge unit 270, high pressure oxygen control unit (280) and a switch 290 .

As shown in the accompanying drawings, the distributor 200 may be provided on the upper side of the main body 100 , and a gas pipe 221 connected to a cutting part 300 to be described later, a low-pressure oxygen pipe 251 and a high-pressure oxygen Gas, low-pressure oxygen and high-pressure oxygen can be directly supplied to the cutting unit 300 through the pipe 271 , and also connected to the power unit 400 to be described later so that high-pressure oxygen can be supplied.

The gas supply unit 210 and the oxygen supply unit 240 allow gas and oxygen to be supplied to the distributor 200 from the outside, respectively.

The gas supply unit 210 and the oxygen supply unit 240 are configured such that separate pipes are connected, and oxygen and gas are supplied from a gas tank or an oxygen tank.

The gas discharge unit 220 performs a function of discharging gas through the gas pipe 221 connected to the cutting unit 300 to be described later.

The gas control unit 230 performs the function of a valve, and gas is discharged in the process of supplying the gas supplied to the distributor 200 through the gas supply unit 210 to the cutting unit 300 using the gas pipe 221 . That is, it performs a function of adjusting the supply amount to the cutting unit 300 .

That is, the gas supplied to the gas supply unit 210 is regulated by the gas control unit 230 to be discharged through the gas pipe 221 connecting the gas discharge unit 220 and the cutting unit 300 to the cutting unit 300 . is supplied

The low pressure oxygen discharge unit 250 performs a function of discharging low pressure oxygen through the low pressure oxygen pipe 251 connected to the cutting unit 300 to be described later.

The low-pressure oxygen control unit 260 performs the function of a valve, and the low-pressure oxygen converted from the oxygen supplied to the distributor 200 through the oxygen supply unit 240 is cut using the low-pressure oxygen pipe 251 (300). In the process of supplying to the furnace, it performs a function of controlling the amount of low-pressure oxygen discharged, that is, the amount supplied to the cutting unit 300 .

That is, the low-pressure oxygen discharged from the low-pressure oxygen discharge unit 250 is controlled by the low-pressure oxygen control unit 260 to be supplied to the cutting unit 300 through the low-pressure oxygen pipe 251 .

The high-pressure oxygen discharge unit 270 performs a function of discharging high-pressure oxygen through the high-pressure oxygen pipe 271 connected to the cutting unit 300 to be described later.

The high-pressure oxygen control unit 280 performs the function of a valve, and the converted high-pressure oxygen among the oxygen supplied to the distributor 200 through the oxygen supply unit 240 is cut using a high-pressure oxygen pipe 271 (300). In the process of supplying to the furnace, it performs a function of controlling the amount of high-pressure oxygen discharged, that is, the amount supplied to the cutting unit 300 .

That is, the high-pressure oxygen discharged from the high-pressure oxygen discharge unit 270 is controlled by the high-pressure oxygen control unit 280 to be supplied to the cutting unit 300 through the high-pressure oxygen pipe 271 .

The switch 290 is provided in the form of a lever in the distributor 200 to control the operation of the power unit 400 , and specifically, to open and close the high-pressure oxygen pipe 271 .

That is, the operation of the power unit 400 is controlled by allowing the high-pressure gas discharged from the high-pressure oxygen discharge unit 270 to be selectively transferred through the high-pressure oxygen pipe 271 or to block the transfer according to the operation of the switch 290 . do.

In other words, the switch 290 controls the movement of high-pressure oxygen, and the high-pressure oxygen control unit 280 performs a function of adjusting the movement amount (discharge amount) of the high-pressure oxygen.

At this time, a check valve (not shown in the drawing) may be provided in the high-pressure oxygen pipe 271 connecting the high-pressure oxygen discharge unit 270 of the distributor 200 and the high-pressure oxygen connector 313 of the cutting unit 300 . This check valve controls the movement direction by the check valve in the process in which the high-pressure oxygen supplied from the distributor 200 to the power unit 400 is discharged after operating the power unit 400 and transferred to the cutting unit 300 . Accordingly, it is possible to prevent the reverse flow toward the distributor 200 to be transferred.

Such a distributor 200 is connected to a cutting part 300 to be described later by a gas pipe 221 , a low-pressure oxygen pipe 251 and a high-pressure oxygen pipe 271 so that the torch 320 of the cutting part 300 is operated. do.

Also, by supplying high-pressure oxygen to the power unit 400 , the power unit 400 operates.

Accordingly, the cutting operation of the gas cutter and the forward and backward progress are made even without a separate electricity supply.

Figure 4 is a partial perspective view showing the cut in the gas cutter equipped with a detachable rail according to the present invention, Figure 5 is a partial exploded perspective view showing a torch clamp in the gas cutter equipped with a detachable rail according to the present invention.

The cutting unit 300 is provided on the outside of the main body 100, and is driven by receiving low-pressure oxygen, high-pressure oxygen and gas from the distributor 200 to perform a function of cutting an object, a holder 310, a torch 320. , a cutting position adjusting unit 330 , a torch clamp 340 and a cutting angle adjusting unit 350 .

The holder 310 determines the position of the torch 320 by supporting a torch 320 to be described later and coupled to the torch clamp 340 , and a gas pipe connector to which the gas pipe 221 of the distributor 200 is connected. 311 , a low-pressure oxygen connector 312 to which the low-pressure oxygen pipe 251 is connected, and a high-pressure oxygen connector 313 to which the high-pressure oxygen pipe 271 is connected.

The holder 310 is coupled to a torch clamp 340 to be described later, and the distance and height between the main body 100 and the torch 320 can be adjusted from the main body 100 by the cutting position adjusting unit 330 and cut. Make the work easy.

The torch 320 is supported by the holder 310, and the low-pressure oxygen, high-pressure oxygen and gas discharged from the distributor 200 are supplied and operated, thereby performing a function of cutting operation.

The cutting position adjusting unit 330 changes the position of the holder 310 on which the torch 320 is mounted so as to specify a position where the cutting operation is performed by the torch 320 , and the horizontal position adjusting unit 331 . , a horizontal position control lever 332 , a vertical position control unit 333 and a vertical position control lever 334 .

The horizontal position adjusting unit 331 is provided to be able to slide to both sides of the main body 100 .

The horizontal position control lever 332 performs a function of controlling the slide movement of the horizontal position control unit 331 .

At this time, the horizontal position control unit 331 and the horizontal position control lever 332 may be configured in a gear type by a rack-pinion.

That is, as shown in the accompanying drawings, the horizontal position adjusting part 331 made of a rack is provided to be able to slide on both sides of the main body 100, and a horizontal position adjusting lever 332 made of a pinion engaged with the rack. ) to adjust the degree to which the horizontal position adjusting unit 331 slides from the main body 100 .

The vertical position adjusting unit 333 is provided at the end of the horizontal position adjusting unit 331 to slide up and down, and a torch clamp 340 is coupled to the lower end thereof.

The vertical position adjusting lever 334 performs a function of controlling the sliding movement of the vertical position adjusting unit 333 .

At this time, the vertical position adjusting unit 333 is fitted to the housing and the housing coupled to the end of the horizontal position adjusting unit 331, the two-row screw having a thread on the outer peripheral surface, and a cylindrical shape having a thread on the inner peripheral surface to engage the two-row screw. A form of a transfer rod (not shown) is configured, and the vertical position adjustment lever 334 may be configured to be coupled to the upper side of the two-line screw.

That is, when the vertical position adjustment lever 334 is rotated, the two-row screw is rotated together, and the transfer rod provided to engage the two-row screw may be configured to slide up and down inside the housing.

Accordingly, by rotating the vertical position adjusting lever 334, it is possible to easily adjust the degree to which the vertical position adjusting unit 333 slides from the horizontal position adjusting unit 331.

In this process, the cutting position adjusting unit 330 adjusts the distance between the main body 100 and the torch clamp 340 by rotating the horizontal position adjusting lever 332 , and rotating the vertical position adjusting unit 333 to the torch By adjusting the height at which the clamp 340 is positioned, the positions of the holder 310 and the torch 320 coupled to the torch clamp 340 can be easily adjusted.

The torch clamp 340 is coupled to the lower end of the vertical positioning unit 333 and is coupled to the holder 310 to fix the torch 320 , and includes a through hole 341 and a crater nut 342 . ) and a butterfly bolt 343 is configured.

When the torch clamp 340 is described with reference to FIGS. 4 and 5 , it is formed in a form extending outwardly at the lower end of the vertical position adjusting unit 333 , and has a through hole in the form of penetrating upward and downward at the end. (341) is formed.

A crater nut 342 that is coupled to the lower side of the holder 310 and fixes the torch 320 is inserted into the through hole 341 .

In addition, after the crater nut 342 is inserted into the through hole 341 , when the butterfly bolt 343 passing through the side of the torch clamp 340 is rotated, the butterfly bolt 343 is the crater inserted into the through hole 341 . By pressing the outer circumferential surface of the nut 342 , the crater nut 342 coupled to the holder 310 is firmly coupled to the torch clamp 340 .

At this time, as shown in FIG. 5 , the inner periphery of the through hole 341 may have a hexagonal shape, and the crater nut 342 fitted into the through hole 341 may also have a hexagonal outer peripheral surface.

Accordingly, when the crater nut 342 is inserted into the through hole 341 , rotation of the holder 310 and the torch 320 from the torch clamp 340 can be prevented and a firmly fixed state can be maintained.

The cutting angle adjustment unit 350 performs a function of rotating the torch clamp 340 from the vertical position adjustment lever 334 .

Accordingly, by rotating the direction in which the torch clamp 340 faces, that is, the direction in which the torch 310 faces, the angle at which the cut is made can be adjusted.

At this time, the cutting angle adjusting unit 350 may be configured such that one bracket coupled to the vertical position adjusting unit 333 and the other bracket coupled to the torch clamp 340 are rotatable with each other. More specifically, one bracket and the other bracket are provided closely to each other by elasticity. A plurality of projections formed on the other bracket may be engaged with each other so that the rotated position is fixed.

As another example, a through hole into which the torch clamp 340 is rotatably fitted is formed at the lower end of the vertical positioning unit 333, and by pressing the outer peripheral surface of the torch clamp 340 fitted into the through hole by fastening a bolt to the through hole. , the torch clamp 340 that has been rotated from the vertical position adjustment unit 333 may be fixed.

6 is a partial exploded perspective view showing a power unit and a driving unit in a gas cutter equipped with a detachable rail according to the present invention, and FIG. 7 is an example in which the gear unit of the driving unit is operated in the gas cutter equipped with a detachable rail according to the present invention. A front view, (a) is a running state, (b) is a view showing a non-traveling state.

The power unit 400 is installed in the hollow part of the main body 100 , and performs a function of generating rotational force by receiving high-pressure oxygen from the distributor 200 , and includes an output shaft 410 .

The power unit 400 may have any configuration as long as it is configured to generate rotational force by receiving high-pressure oxygen, such as a fluid motor or an air motor.

That is, the gas cutter provided with a detachable rail according to the present invention allows the main body 100 to move forward or backward while being supported by the cutting operation and the rail unit 700 by the operation of the power unit 400 .

The output shaft 410 is provided to rotate by the operation of the power unit 400 , and a worm wheel 520 of the driving unit 500 , which will be described later, engages and performs a function of applying a rotational force.

At this time, it is preferable that a worm gear is formed on the outer peripheral surface of the output shaft 410 to be engaged with the worm wheel 520 to apply a rotational force. ) together, the driving unit 500 is operated so that the main body 100 is supported by the rail unit 700 to move forward and backward.

The driving unit 500 performs a function of moving forward or backward the main body 100 supported by the guide rail 710 by the rotational force of the power unit 400, the driving shaft 510, the worm wheel 520, the clutch ( 530 ), a spring 540 , a driving wheel 550 , and a gear unit 560 .

The drive shaft 510 is rotatably provided inside the body 100 .

At this time, as shown in FIG. 6 , the driving shaft 510 may be configured such that a through hole is formed on both sides of the inner circumferential surface of the main body 100 and is rotatably inserted into the hole.

The worm wheel 520 is rotatably coupled to the drive shaft 510 , and is rotated by a rotational force transmitted through engagement with the output shaft 410 .

That is, the worm wheel 520 shares rotational force with the output shaft 450 of the power unit 400 by meshing with the worm gear, so that the worm wheel 520 is rotated by receiving the rotational force generated during the operation of the power unit 400 .

At this time, the direction in which the worm wheel 520 rotates is preferably configured to be changed by changing the direction in which the output shaft 410 is rotated by the operation of the power unit 400 .

Accordingly, by selectively adjusting the rotation direction of the output shaft 410, the moving direction of the main body 100 can be changed so that the gas cutter can be moved forward or backward.

The clutch 530 is provided to slide and move along the longitudinal direction of the long axis of the output shaft 410, one side of which is formed with a protruding engaging jaw 531, and the other side is in gear contact with one side of the worm wheel 520. rotated together

At this time, the clutch 530 has a groove formed long in the longitudinal direction of the long axis of the drive shaft 510 on the outer peripheral surface of the drive shaft 510 so as to share the rotational force with the drive shaft 510, and the clutch is formed. The inner circumferential surface passing through both sides of the 530 may be formed in a form in which a groove corresponding to the groove formed in the driving shaft 510 is dug inward.

Accordingly, when the fitting bar is fitted into the groove formed on the outer circumferential surface of the drive shaft 510 , a portion of the fitting bar protruding to the outside of the drive shaft 510 is fitted into the groove formed on the inner circumferential surface of the clutch 530 , and the clutch 530 is the drive shaft. It is possible to slide from the 510 in the longitudinal direction of the long axis, and share the rotational force so that the drive shaft 510 and the clutch 530 rotate together.

In addition, a plurality of radial projections may be formed on one side of the worm wheel 520 and the other side of the clutch 530 , respectively.

Accordingly, when the worm wheel 520 and the clutch 530 are in close contact, a plurality of protrusions formed on the other side of the worm wheel 520 and a plurality of protrusions formed on one side of the clutch 530 are engaged with each other to share rotational force. .

That is, when the power unit 400 is operated, when the worm wheel 520 provided to engage the rotating output shaft 450 is rotated, the clutch 530 provided in gear contact with the worm wheel 520 is rotated, as a result, The drive shaft 510 is rotated.

The spring 540 is provided on one side of the clutch 530 to elastically support the clutch 530 to the other side.

This allows the spring 540 to elastically support the clutch 530 to the other side, so that the engaged state of the clutch 530 with the worm wheel 520 provided on the other side of the clutch 530 is maintained.

That is, the worm wheel 520 , the clutch 530 , and the drive shaft 510 rotate together by receiving the rotational force generated during the operation of the power unit 400 , so that the main body 100 moves forward or backward.

The driving wheel 550 is coupled to the driving shaft 510 and is provided inside the main body 100 , and a portion thereof is exposed to the outside through a space penetrating the bottom surface of the main body 100 .

That is, the driving wheel 550 exposed to the bottom surface of the main body 100 engages and comes into contact with the guide rail 710 of the rail part 700 to be described later.

Preferably, a spur gear 551 is formed on the outer peripheral surface of the driving wheel 550 , and a rack gear 711 meshing with the spur gear 551 may be formed on an upper surface of the guide rail 710 .

Accordingly, when the guide part 600 provided on the lower side of the main body 100 is supported by the rail part 700 , the driving wheel 550 is engaged with the guide rail 710 .

Therefore, when the driving wheel 550 engaged with the guide rail 710 is rotated by the rotational force applied during the operation of the power unit 400 , the main body 100 is easily moved forward or backward along the guide rail 710 .

The gear unit 560 functions to selectively control the gear contact or separation between the worm wheel 520 and the clutch 530 , and includes a clutch guide 561 and a clutch operation bar 562 .

The gear unit 560 allows the worm wheel 520 and the clutch 530 to selectively contact or separate gears by a user's manipulation, thereby sharing the rotational force generated during the operation of the power unit 400 or disconnecting the main body. (100) is made to be in a state where it can move freely.

For example, when the user operates the gear unit 560 to separate the worm wheel 520 and the clutch 530, the rotational force generated during the operation of the power unit 400 is cut off and the worm wheel engaged with the output shaft 410 ( Only 520 is rotated, and the drive shaft 510 is in a state where free rotation is possible.

Accordingly, it is possible to selectively and easily control the forward, backward, and stop of the main body 100 supported by the rail unit 700 through the operation of the gear unit 560 .

The clutch guide 561 is provided inside the main body 100 and is provided to surround a portion of the outer peripheral surface of the clutch 530 .

The clutch operation bar 562 is exposed to the outside of the main body 100 , is provided to be rotatable, and is coupled to the upper side of the clutch guide 561 .

When the gear unit 560 having such a configuration is described with reference to FIGS. 6 and 7 , when the clutch operation bar 562 exposed to the outside of the main body 100 is rotated to the other side, it is rotated based on the rotation axis and the clutch The guide 561 is moved to one side, and the clutch guide 561 is slid to one side while being caught by the locking jaw 531 of the clutch 530 so that the worm wheel 520 and the clutch 530 are separated.

8 is a planar cross-sectional view showing a guide part in a gas cutter equipped with a detachable rail according to the present invention, and FIG. 9 is a side cross-sectional view showing a guide part in a gas cutter equipped with a detachable rail according to the present invention, FIG. It is a front cross-sectional view showing a guide part in a gas cutter equipped with a detachable rail according to the invention.

The guide part 600 is provided on the lower side of the main body 100 and supported by a rail part 700 to be described later, so that the main body 100 slides along the longitudinal direction of the long axis of the rail part 700 .

The guide unit 600 is configured such that the guide rollers 630 are rotatably adhered to both sides of the rail unit 700 to be firmly supported, and one side guide unit 610, the other side guide unit 620 and the guide It is configured to include a roller (630).

That is, a guide roller 630 is rotatably coupled to each of the one side guide part 610 and the other side guide part 620 , and the one side guide part 610 and the other side guide part 620 are each of the rail part 700 . supported on one side and the other side.

At this time, the one-side guide part 610 is elastically supported toward the other guide part 620 by the elastic force of the elastic member 615, and thus one-side guide part 610 provided on both sides of the guide rail 710 of the rail part 700. and the other side guide part 620 so as to be in close contact with the guide rail 710 by an elastic force.

Accordingly, the body 100 can secure a strong adhesion from the rail unit 700, and even if the guide rail 710 made of a flexible material is installed in a curved shape corresponding to the curved surface like the outer surface of a ship, the curved guide rail ( The main body 100 may be moved forward or backward while maintaining the rigidity along the 710 .

The one-side guide part 610 is provided on one side of the bottom surface of the main body 100 and supported on one side of the rail part 700 to be described later, and includes a slide groove 611, a slide shaft 612, a slide shaft 613, It is configured to include a slide plate 614 , an elastic member 615 , and a handle 616 .

The slide groove 611 is formed to pass through one side of the bottom surface of the main body 100 so that the slide shaft 612 to be described later passes therethrough.

At this time, the slide groove 611 may be formed in a long oval shape on one side and the other side.

Accordingly, the slide shaft 612 passing through the slide groove 611 enables sliding movement to one side and the other side along the slide groove 611 .

That is, the slide shaft 612 slides along the longitudinal direction of the long axis of the slide groove 611 so that the interval between the slide shaft 621 and the rotation shaft 621 of the other guide part 620 to be described later is adjusted.

The slide shaft 612 is provided to pass through the slide groove 611 , and the guide roller 630 is rotatably coupled thereto.

Preferably, the upper portion of the slide shaft 612 passes through the slide groove 611 and is located inside the main body 100, is coupled to the slide plate 614 to be described later, and the lower portion of the slide shaft 612 is The main body 100 protrudes downward and the guide roller 630 is rotatably coupled.

The slide shaft 613 is provided on the side of the hollow part of the body 100 in a form protruding outward.

The slide shaft 613 may be provided to pass through one side and the other side of the slide plate 614 to be described later.

Accordingly, in the process in which the slide shaft 612 and the slide plate 614 slide along the longitudinal direction of the long axis of the slide groove 611, the slide plate 614 slides along the slide shaft 613, so that the slide plate ( It is possible to minimize the problem of shaking 614) or the slide shaft 612 is inclined in the slide groove 611. This TEk.

The slide plate 614 is coupled to the upper side of the slide shaft 612 and slides in the longitudinal direction of the long axis of the slide shaft 613 .

The slide plate 614 has a slide shaft 612 coupled to the lower side to slide along the slide groove 611 to one side and the other side, and a handle 616 to be described later is coupled to the side surface of the main body 100 . It is elastically supported to the other side by the elastic force of the elastic member 615 provided between the hollow side surface and the slide plate 614 .

That is, the slide plate 614 is elastically supported together with the slide shaft 612 on the other side by the elastic force of the elastic member 615 , so that, referring to FIG. 10 , the guide roller of the one side guide part 610 provided on one side. By making the gap between the 630 and the guide roller 630 of the other side guide part 620 provided on the other side narrow, the adhesion between the guide rail 710 and the guide roller 630 can be increased.

Depending on the design conditions, the eccentricity prevention protrusion 614a provided in a protruding form on the side surface of the slide plate 614 to surround the outer peripheral surface of the slide shaft 613 penetrating the slide plate 614 may be provided.

This eccentricity prevention protrusion 614a is described with reference to FIG. 10, it protrudes to the outside of the slide plate 614 along the longitudinal direction of the long axis of the slide shaft 613, and is provided to surround the outer circumferential surface of the slide shaft 613 .

Accordingly, the slide plate 614 slides more stably due to an increase in the contact area between the slide shaft 613 and the anti-eccentricity protrusion 614a during the slide movement of the slide plate 614 along the slide shaft 613. In addition, it is possible to prevent the occurrence of eccentricity to prevent the problem that the guide roller 630 provided in the one-side guide portion 610 is inclined.

The elastic member 615 is provided between the hollow side of the body 100 and the slide plate 614 to elastically support the slide plate 614 to the outside.

That is, by elastically supporting the slide plate 614 and the slide shaft 612 and the guide roller 630 rotatably coupled to the slide shaft 612 to slide to the other side, the guide rail 710 is more closely attached to the guide. The part 600 may be supported.

The handle 616 is exposed to the outside of the main body 100 , passes through the side surface of the main body 100 , and is coupled to the slide plate 614 .

The handle 616 allows the slide plate 614 slid to the other side by the elastic force of the elastic member 615 to move to one side.

For example, if the user grips the handle 616 and then pulls the handle 616 to the outside of the main body 100, that is, to one side of the main body 100, the slide plate 614, the slide shaft 612 and the The guide roller 630 rotatably coupled to the slide shaft 612 also slides to one side of the main body 100, and at this time, the distance between the guide roller 630 provided on the other side and the guide roller 630 is widened so that a pair of guides The guide rail 710 can be easily positioned between the rollers 630 or the guide rail 710 supported firmly can be easily separated.

According to this configuration, one side guide part 610 elastically supports the guide roller 630 rotatably coupled to the slide shaft 612 to the other side, but by enabling the slide movement, the adhesion with the rail part 700 is improved. To improve the guide rail 710 so that the guide part 600 is more firmly supported, and furthermore, even if the guide rail 710 of a flexible material is in a bent state, it maintains a strong adhesion by the elastic force to prevent falling off. can

The other guide part 620 is provided on the other side of the bottom surface of the main body 100 to be supported on the other side of the rail part 700 to be described later, and includes a rotation shaft 621 .

The guide roller 630 is rotatably coupled to the slide shaft 612 of the one guide part 610, and is rotatably coupled to the rotation shaft 621 of the other guide part 620, as shown in FIG. 700 is provided on both sides, respectively, to be supported by the guide rail 710 , and is configured to include a shoulder attachment groove 631 .

That is, when the guide roller 630 is described with reference to FIG. 10 , it is rotatably coupled to each of the slide shaft 612 and the rotation shaft 621 , and a shoulder attachment groove 631 inwardly recessed on the side surface is formed.

This shoulder attachment groove 631 provides a space in which the shoulder attachment protrusion 712 of the guide rail 710 is fitted. Since the shoulder attachment protrusion 712 having a protruding shape is fitted, the adhesion between the guide part 600 and the rail part 700 can be improved.

11 is a view showing another embodiment of the guide roller in the gas cutter provided with a detachable rail according to the present invention.

According to the design conditions, the guide roller 630 is described with reference to FIG. 11, and is composed of an upper roller 632 provided on the upper side and a lower roller 633 provided on the lower side with a middle part cut off, the upper roller A stretchable portion 640 may be provided between the 632 and the lower roller 633 to provide an elastic force so as to be in close contact with each other.

In this case, the stretchable part 640 may be formed of a spring in the form of a coring or a leaf spring in the form of a washer.

Accordingly, the upper roller 632 and the lower roller 633 are provided to be in close contact with each other by the elastic force of the expansion and contraction part 640, and the guide rail 710 made of a flexible material is installed to be bent upward and downward. The gap between the upper roller 632 and the lower roller 633, that is, the upper and lower gaps of the shoulder attachment groove 631, is flexibly changed in the process of moving the body 100 forward or backward along the guide rail 710 in the form of Thus, smooth progress is possible, and further, by maintaining the adhesion between each other by the elastic force of the expansion and contraction part 640, even if supported by the guide rail 710 installed in a curved form, it is supported firmly and can be prevented from being separated.

12 is a perspective view showing a rail part in a gas cutter equipped with a detachable rail according to the present invention, and FIG. 13 is a front cross-sectional view showing a rail part in a gas cutter equipped with a detachable rail according to the present invention.

The rail unit 700 is supported so that the guide unit 600 slides in the longitudinal direction of the major axis, and includes a guide rail 710 and a magnetic base 720 .

As shown in the accompanying drawings, the guide rail 710 has a hollow tube shape, and a rack gear 711 is formed on the upper side to mesh with the spur gear 551 of the driving wheel 550, and guides are formed on both sides. A shoulder attachment protrusion 712 protruding outward to fit into the shoulder attachment groove 631 of the roller 630 is formed.

As the guide rail 710 is formed to be long in the longitudinal direction of the major axis, the main body 100 moves forward or backward along the guide rail 710 .

Preferably, along the guide rail 710 having a long axis longitudinal direction, the rack gear 711 and the shoulder attachment protrusion 712 may also be formed in the long axis longitudinal direction.

On the other hand, the guide rail 710 is installed on the target to be cut, and at this time, it may be configured to include a magnetic base 720 coupled to the lower side of the guide rail 710 so that it can be easily attached and detached to the target.

The magnetic base 720 is manufactured using a permanent magnet, and is configured to turn on and off the magnetic force using a lever.

That is, the guide rail 710 is installed on the object using the magnetic base 720 because it can be firmly attached to the magnetic object.

At this time, when the magnetic base 720 is described with reference to FIG. 13 , it may be configured to include a connection block 721 provided on the upper side of the magnetic base 720 for coupling with the guide rail 710 .

The connection block 721 may be coupled to the upper side of the magnetic base 720 by bolt coupling, and the guide rail 710 may be coupled to the upper side of the connection block 721 by bolt coupling.

Depending on the design conditions, the lower surface of the guide rail 710 may be formed with a plurality of through-holes spaced apart from each other in the longitudinal direction of the major axis to facilitate bolt coupling.

14 is a plan view showing another embodiment of the guide rail in the gas cutter provided with a detachable rail according to the present invention.

According to design conditions, the rack gear 711 provided on the upper side of the guide rail 710 may have an inclined surface 711a as shown in FIG. 14 .

The inclined surface 711a has a shape that gradually becomes narrower in width from the center side of the rack gear 711 to the outside. ), the spur gear 551 of the driving wheel 550 engaged with the spur gear 551 is separated from the rack gear 711 on which the inclined surface 711a is formed, thereby preventing a problem in which the spur gear 551 is not engaged.

15 is a perspective view showing a connection pin in the gas cutter provided with a detachable rail according to the present invention.

On the other hand, the guide rail 710 may be configured such that a plurality of guide rails 710 are connected to each other according to the cutting length of the object.

In this case, the plurality of guide rails 710 may be configured to be connected by a connection pin 730 .

The connecting pin 730 is described with reference to FIG. 15, it is inserted into the communicating space of the guide rail 710 made of a hollow tube shape so that a pair of guide rails 710 are connected to each other, and the front side and the back side It is made in the form of a long bar, and a protruding piece protruding to the outside may be formed in the middle.

Here, the protruding piece limits the degree to which the front side or the rear side of the connecting pin 730 is caught by the guide rail 710 in the process of being fitted into the communicating space of the guide rail 710 .

According to the design conditions, the connecting pin 730 has a shape in which the width of the front side and the rear side is gradually narrowed toward the outside as shown in FIG. 15 so that it can be easily fitted into the communicating space of the guide rail 710 . can be made with

In addition, the coupling of the connecting pin 730 and the guide rail 710 is a lower surface of the guide rail 710 when the connecting pin 730 is inserted into the space communicating with the front side or the rear side of the guide rail 710 . It may be configured to be coupled using a bolt coupling to the through hole formed in the.

Accordingly, the connection pins fitted to the guide rails 710 are fixed by bolt coupling, so that the plurality of guide rails 710 can be more firmly connected.

According to this configuration, the gas cutter provided with a detachable rail according to the present invention cuts while the main body 100 moves along the guide rail 710 made of a flexible material in the process of cutting using the pneumatic pressure of oxygen. This is done, but the main body 100 is in close contact with the curved surface like the outer surface of the ship by the guide rail 710 having flexibility so that the cutting operation is made, so that the curved surface can be easily cut. .

For example, as shown in FIG. 16 , when the guide rail 710 is bent to the left and right, the guide rollers 630 rotatable are supported on both sides of the guide rail 710, respectively, and the body 100 is curved. It moves forward or backward along the guide rail 710 of the form.

At this time, as the guide rail 710 is formed in a curved form, the guide roller 630 provided in one guide part 610 and the guide roller provided in the other guide part 620 in the process of the main body 100 moving. As the interval between the 630 is adjusted, the movement of the body 100 is made flexibly, and at the same time, the guide roller 630 provided in the one-side guide part 610 responds to the elastic force of the elastic member 615. By being in close contact with one side of the guide roller 630 , it is possible to prevent the main body 100 from being separated from the guide rail 710 .

As another example, as shown in FIG. 17 , even when the guide rail 710 is bent up and down, the guide roller 630 and the other guide provided in the one side guide part 610 by the elastic force of the elastic member 615 . The guide roller 630 provided in the part 620 is in close contact with both sides of the guide rail 710, so that even if the guide rail 710 is installed in a curved shape, the main body 100 is prevented from being separated from the guide rail 710. and a stable cutting operation can be made.

In addition, a guide roller 630 provided on the lower side of the main body 100 and supported on both sides of the guide rail 710 is provided, and a guide roller 630 provided on one side of the main body 100 and a guide roller 630 provided on the other side are provided. ) by adjusting the interval between them, the main body 100 can be easily attached to and detached from the guide part 600 .

In addition, the guide roller 630 provided on one side of the body 100 slides to one side and the other side, and an elastic member 615 for elastically supporting the other side is provided, so that the guide is supported on both sides of the guide rail 710 . By making the roller 630 closely adhere to the guide rail 710 , even if the shape of the guide rail 710 made of a flexible material is deformed, the main body 100 is stably supported by the guide rail 710 so that the cutting operation is performed. can do.

In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto. It can be seen that branch substitutions, transformations and alterations are possible.

100: body
200: distributor 210: gas supply unit
220: gas discharge unit 221: gas pipe
230: gas control unit 240: oxygen supply unit
250: low pressure oxygen discharge unit 251: low pressure oxygen pipe
260: low pressure oxygen control unit 270: high pressure oxygen discharge unit
271: high-pressure oxygen pipe 280: high-pressure oxygen control unit
290: switch
300: cut part 310: holder
311: gas pipe connector 312: low pressure oxygen connector
313: high pressure oxygen connector 320: torch
330: cutting position adjusting unit 331: horizontal position adjusting unit
332: horizontal position control lever 333: vertical position control unit
334: vertical position control lever 340: torch clamp
341: through hole 342: crater nut
343: butterfly bolt 350: cutting angle adjustment part
400: power unit 410: output shaft
500: drive unit 510: drive shaft
520: worm wheel 530: clutch
531: locking jaw 540: spring
550: drive wheel 551: spur gear
560: gear 561: clutch guide
562: clutch operation bar
600: guide part 610: one side guide part
611: slide groove 612: slide shaft
613: slide shaft 614: slide plate
614a: eccentricity prevention projection 615: elastic member
616: handle 620: the other side guide part
621: rotation shaft 630: guide roller
631: shoulder groove 632: upper roller
633: lower roller 640: stretchable part
700: rail 710: guide rail
711: rack gear 711a: inclined surface
712: shoulder protrusion 720: magnetic base
721: connection block 730: connection pin

Claims (10)

a body 100 having a hollow part therein;
a distributor 200 installed outside the main body 100 to supply oxygen and gas, classifying the supplied oxygen into low-pressure oxygen and high-pressure oxygen and discharging it together with the gas;
a cutting part 300 provided on the outside of the main body 100 and driven by receiving low-pressure oxygen, high-pressure oxygen and gas from the distributor 200 to cut the object;
a power unit 400 installed in the hollow part of the main body 100 and receiving high-pressure oxygen from the distributor 200 to generate rotational force; and
a driving unit 500 for moving the main body 100 supported on the guide rail 710 forward or backward by the rotational force of the power unit 400;
a guide unit 600 provided on a lower side of the body 100; and
The guide part 600 is supported so as to slide in the longitudinal direction of the long axis (700); is configured to include,
The rail unit 700 is
A guide rail 710 made of a flexible material; is configured to include,
The guide part 600 is
one side guide part 610 supported on one side of the guide rail 710;
The other guide part 620 supported on the other side of the guide rail 710; and
A guide roller 630 provided to be rotatable along a guide rail 710 on each of the one side guide part 610 and the other side guide part 620;
The distributor 200 is
a gas supply unit 210 to which gas is supplied from the outside;
a gas discharge unit 220 for discharging gas through a gas pipe 221 connected to the cutting unit 300;
a gas control unit 230 for controlling the amount of gas;
an oxygen supply unit 240 to which oxygen is supplied from the outside;
a low pressure oxygen discharge unit 250 for discharging low pressure oxygen through a low pressure oxygen pipe 251 connected to the cutting unit 300;
a low-pressure oxygen control unit 260 for adjusting the low-pressure oxygen discharge;
a high-pressure oxygen discharge unit 270 for discharging high-pressure oxygen through the high-pressure oxygen pipe 271 connected to the cutting unit 300;
a high-pressure oxygen control unit 280 for controlling the high-pressure oxygen discharge; and
and a switch 290 for controlling the operation of the power unit 400;
The cutting part 300 is
holder 310; and
A torch 320 supported by the holder 310 and operated by supplying low-pressure oxygen, high-pressure oxygen and gas discharged from the distributor 200;
The holder 310 is
a gas pipe connector 311 for supplying gas by connecting the other side of the gas pipe 221;
a low-pressure oxygen connector 312 connected to the low-pressure oxygen pipe 251 to supply low-pressure oxygen; and
and a high-pressure oxygen connector 313 connected to the high-pressure oxygen pipe 271 to supply high-pressure oxygen; and
The cutting part 300 is
a cutting position adjusting unit 330 provided on the outside of the main body 100 and for adjusting the distance between the main body 100 and the torch 320 and the height at which the torch 320 is located; and
A torch clamp 340 provided in the cutting position adjusting unit 330 and coupled to the holder 310 to fix the torch 320;
The cutting position adjusting unit 330 is
a horizontal positioning unit 331 provided to slide on both sides of the main body 100;
a horizontal position control lever 332 for controlling the slide movement of the horizontal position control unit 331;
a vertical position adjusting unit 333 provided at the end of the horizontal position adjusting unit 331 to be able to slide up and down, and coupled to the lower end of the torch clamp 340 in an outwardly extending form; and
and a vertical position adjustment lever 334 for controlling the slide movement of the vertical position adjustment unit 333;
The torch clamp 340 is
Through-holes 341 in the form of penetrating up and down at the ends of the torch clamps 340 in the form of extending from the vertical positioning unit 333;
a crater nut 342 coupled to the lower side of the holder 310 to fix the torch 320 and fitted into the through hole 341; and
A gas cutter with a detachable rail, characterized in that it includes; .
a body 100 having a hollow part therein;
a distributor 200 installed outside the main body 100 to supply oxygen and gas, classifying the supplied oxygen into low-pressure oxygen and high-pressure oxygen and discharging it together with the gas;
a cutting part 300 provided on the outside of the main body 100 and driven by receiving low-pressure oxygen, high-pressure oxygen and gas from the distributor 200 to cut the object;
a power unit 400 installed in the hollow part of the main body 100 and receiving high-pressure oxygen from the distributor 200 to generate rotational force; and
a driving unit 500 for moving the main body 100 supported on the guide rail 710 forward or backward by the rotational force of the power unit 400;
a guide unit 600 provided on a lower side of the body 100; and
The guide part 600 is supported so as to slide in the longitudinal direction of the long axis (700); is configured to include,
The rail unit 700 is
A guide rail 710 made of a flexible material; is configured to include,
The guide part 600 is
one side guide part 610 supported on one side of the guide rail 710;
The other guide part 620 supported on the other side of the guide rail 710; and
A guide roller 630 provided to be rotatable along the guide rail 710 on each of the one side guide part 610 and the other side guide part 620;
The one-side guide part 610 is
a slide groove 611 passing through one side of the bottom surface of the main body 100 and having a long oval shape on one side and the other side;
a slide shaft 612 passing through the slide groove 611;
a slide shaft 613 provided on the side of the hollow part of the main body 100 in a protruding form;
a slide plate 614 coupled to the upper side of the slide shaft 612 and capable of sliding in the longitudinal direction of the long axis of the slide shaft 613;
an elastic member 615 provided between the hollow side of the body 100 and the slide plate 614 to elastically support the slide plate 614 to the outside; and
A handle 616 exposed to the outside of the main body 100 and coupled to the slide plate 614 through the side surface of the main body 100;
The other side guide part 620 is
and a rotation shaft 621 provided on the other side of the bottom surface of the main body 100;
The guide roller 630 is
Doedoe rotatably coupled to each of the slide shaft 612 and the rotation shaft 621, a shoulder attachment groove 631 in the form of an inwardly dented side is formed,
The guide rail 710 is
a rack gear 711 formed on the upper side and engaged with the driving unit 500; and
Constructed including; a shoulder attachment protrusion 712 which is formed to protrude outwardly on each of one side and the other side and is guided to the shoulder attachment groove 631;
The one-side guide part 610 is
The slide plate 614 and the slide shaft 612 along the slide shaft 613 by the elastic force of the elastic member 615 and the guide roller 630 rotatably coupled to the slide shaft 612 are elastically moved to the other side. A gas cutter provided with a detachable rail, characterized in that it is supported to be in close contact with the guide rail (710).
delete delete delete The method according to any one of claims 1 or 2,
The power unit 400 is
It is configured to include; the output shaft 410 is rotated by the generated rotational force,
The driving unit 500 is
a drive shaft 510 rotatably provided inside the body 100;
a worm wheel 520 rotatably coupled to the drive shaft 510 and rotated by a rotational force transmitted in engagement with the output shaft 410;
It is provided to slide along the longitudinal direction of the long axis of the output shaft 410, one side of which is formed with a locking jaw 531 protruding outward, and the other side is in gear contact with one side of the worm wheel 520 and rotates together. clutch 530;
a spring 540 provided on one side of the clutch 530 to elastically support the clutch 530 to the other side; and
A drive wheel 550 coupled to the drive shaft 510 and having a spur gear 551 formed on an outer circumferential surface thereof;
The driving wheel 550 is
A gas cutter provided with a detachable rail, characterized in that a portion is exposed to the outside of the main body 100 and is in contact with the upper side of the rail unit 700 .
7. The method of claim 6,
The driving unit 500 is
The worm wheel 520 and the clutch 530 are selectively geared to contact or separate a gear portion 560 for controlling;
The gear unit 560 is
a clutch guide 561 provided inside the main body 100 and provided to surround a portion of an outer circumferential surface of the clutch 530; and
The main body 100 is exposed to the outside, is provided to be rotatable, and the clutch operation bar 562 coupled to the upper side of the clutch guide 561;
The clutch operation bar 562 is
When the part exposed to the outside of the main body 100 is rotated to the other side, it is rotated based on the rotation axis to move the clutch guide 561 to one side, and the clutch guide 561 is the locking jaw 531 of the clutch 530 . ) and slide to one side to separate the worm wheel 520 and the clutch 530. A gas cutter equipped with a detachable rail.
delete 3. The method according to claim 2,
The guide roller 630 is
The middle part is cut and composed of an upper roller 632 provided on the upper side and a lower roller 633 provided on the lower side,
The guide part 600 is
A gas cutter provided with a detachable rail, characterized in that it comprises a; is provided between the upper roller (632) and the lower roller (633) to provide an elastic force to be in close contact with each other;
7. The method of claim 6,
The guide rail 710 is
It is made of a hollow tube shape in which the front side and the back side communicate,
A gas cutter provided with a detachable rail, characterized in that it comprises; a connecting pin 730 for connecting the plurality of guide rails 710 by being inserted into the communicating space.

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