JPH02179358A - Continuous cutting and punching machine utilizing arc and combustion consumable pipe - Google Patents

Abstract

PURPOSE:To continue smooth cutting and punching work and to improve working efficiency by enabling to continue work to be cut and punched to a cutting and punching device located in the rear. CONSTITUTION:When cutting and punching work is proceeded and a prescribed length of a combustion consumable pipe P is consumed, a combustion gas supply hole of the combustion consumable pipe P is held by a chuck 11 of the cutting and punching device S2 in the rear and combustion gas is supplied to the inside of the combustion consumable pipe P via a combustion gas supply pipe 18 from a combustion gas bomb. The cutting and punching device S2 in the rear is then moved forward and the tip part of a combustion consumable pipe P in the rear is forcibly fitted and joined into the rear part of the combustion consumable pipe P in the front which is burning. At this time, when the combustion consumable pipe P in the rear is joined surely to both combustion consumable pipes P, the gas supply hole of the consumable pipe P in the front is blocked up by a valve seat body and a holding state of the consumable pipe P in the front by a chuck 1 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention is mainly concerned with cutting objects to be melted, such as steel plates, steel ingots, or other appropriate metal materials, in water (under the sea) or the like. This is for drilling and cutting while melting due to the combustion and reaction heat of the arc and combustion consumable tube, and even if a standard length combustion consumable tube is used, the drilling and cutting work will be interrupted. This invention relates to a continuous fusing drilling machine that uses an arc and a combustion consumable tube that can perform continuous cutting without any problems.

(Prior art) Conventionally, when melting and perforating a suitable metal workpiece underwater (under the sea), a skilled worker (diver) goes underwater and uses an arc to burn the consumable tube and the workpiece. At the same time, an appropriate combustion gas such as oxygen is introduced into the combustion consumable tube from the base end, and the tip of the combustion consumable tube is burned and reacted with the appropriate combustion gas ejected from the tip of the combustion consumable tube. Many methods have been adopted in which the combustion and reaction heat generated during this process fuses and perforates the material to be melted.

In addition, when melting and drilling an appropriate metal object on the ground, the combustion consumable tube and the object to be melted are melted by an arc, and appropriate combustion gas such as oxygen is injected into the combustion consumable tube at the base end. The tip of the combustion consumable tube is burned with appropriate combustion gas that is introduced from the tip of the combustion consumable tube and ejected from the tip of the combustion consumable tube.
Many methods are used to cause a reaction and use the resulting combustion and reaction heat to fuse and pierce the workpiece.

(Problem to be Solved by the Invention) However, on land or underwater, the length of the standard length combustion consumable tube is limited to a certain extent from the viewpoint of transportability, storage capacity, etc. Each time the pipe wears out, the cutting and drilling operations must be temporarily interrupted, replaced with a new combustion consumable pipe, and then the cutting and drilling operations must be resumed, resulting in very low work efficiency. In addition, the combustion consumable tube, which has become short due to wear and tear, is disposed of (thrown away) without being used afterward, which has the problem of being uneconomical.

In addition, in consideration of its mobility, etc., combustion consumable tubes used underwater etc. have a diameter of approximately 5 to 1Oa+i+, a total length of approximately 300 to 800 am, and the surface is coated with flux. Comparatively small diameter and short tubes with a waterproof film such as vinyl coated on top are often used, so the combustion consumable tubes wear out fairly quickly, making it difficult for workers to install (remove and install) the combustion consumable tubes interchangeably. The fusing operation has to be restarted frequently, resulting in poor work efficiency, requiring many workers to complete the fusing operation, and prolonging the work period.

In particular, working underwater is an extremely difficult work environment for workers, as it is dark, the water pressure is high, large currents are used, and there are concerns about contamination of the water with harmful liquids and radioactivity. However, there were also some drawbacks. Moreover, in consideration of the health and safety of workers, working hours were limited (around 6:00 in the morning and 6:00 in the afternoon).
Fusing operations in water, etc., which had to be done manually, were extremely inefficient.

Additionally, there is a risk that the molten part of the object to be melted may cool down during the replacement work of the combustion consumable tube, or that it may cool and solidify, making it difficult to reinsert the combustion consumable tube into the molten part. .

(Means for Solving the Problems) Therefore, the present invention was created in order to solve the above-mentioned problems that existed in the past by making it possible to continuously draw out the fixed-length combustion consumable tubes P without relying on manual labor. Specifically, the combustion consumable pipe P is supplied through a clamping mechanism that can hold and support the combustion consumable pipe P in a conductive state, and a combustion gas supply hole 30 provided in the N wall portion of the combustion consumable pipe P. A gas supply mechanism capable of appropriately supplying combustion gas into the pipe P, a mechanism for holding the combustion consumable tube P by operating the feed rods 22 and 23 along the cylinder 20 and 21 with appropriate gas or liquid, and a gas supply mechanism. A plurality of fusing and perforating devices S1 and S2 are provided, each of which is provided with a feeding mechanism that is movable forward and backward. Then, each of the clamping mechanisms and the arc generator 4° are connected, and the metal workpiece H and the arc generator 40 are connected as appropriate, so that the tip portion of the combustion consumable tube P and the workpiece H are connected. The configuration is such that an arc occurs between the two. Then, the welding perforation device S located in front
The distal end portion of the combustion consumable tube P attached to the fusing/perforating device S2 located at the rear is formed so that it can be inserted into the rear end portion of the combustion consumable tube P attached to S1.
It is formed so that the fusing and perforating operation of the workpiece H, which has been performed by the fusing and perforating device S1 located at the front, can be continued by the fusing and perforating device S2 located at the rear. Furthermore,
The front fusing/perforating device S1 is formed so as to release the clamping state of the combustion consumable pipe P and move back to standby at the rear,
A means is adopted in which a plurality of welding and perforating devices S1 and S2 are configured to continuously perform the welding and perforating work on the object H to be welded.

(Function) Thus, the combustion consumable pipe P is held by the holding mechanism and is supported by the fusing and perforating devices Sl and S2, respectively, and is in a state where it is electrically connected to the fusing and perforating devices Sl and S2.

Combustion gas is supplied into the combustion consumable tube P from the combustion gas supply hole 30 via the combustion gas supply mechanism, and is ejected from the tip of the combustion consumable tube P. Further, the plurality of fusing and perforating devices Sl, 82 move the combustion consumable pipe P freely forward and backward via a feed mechanism in which the feed rods 22, 23 operate along the cylinders 20, 21 using oil pressure or pneumatic pressure. Then, when the combustion consumable pipe P of the front welding and perforating device S1, which is fusing and perforating the workpiece H, burns out a predetermined amount, each of the welding and perforating devices S1 and S2, which is on standby at the rear, sends The distal end portion of the combustion consumable tube P, which is moved forward by the mechanism and attached to this fusing/perforating device S2, is fitted into the rear end portion of the exhausted combustion consumable tube P to be supplemented. At this time, combustion gas is supplied into the rear combustion consumable pipe P by the combustion gas supply mechanism of the rear welding and perforating device S2, and combustion gas is supplied from the tip of the rear combustion consumable pipe P into the front combustion consumable pipe P. Then, the rear welding perforation device S
2, the cutting and drilling of the workpiece H is continued.

In addition, the front fusing and perforating device S1 releases the clamping state of the combustion consumable pipe P and moves back to wait at the rear, and when the combustion consumable pipe P that is being welded and perforated is consumed by a predetermined amount, a new combustion consumable pipe P is placed on standby. By attaching it to the fusing and perforating device S1 and sequentially repeating the above-described operations, the fusing and perforating work can be performed continuously without interruption. In addition, each fusing perforating device SL
, S2 is connected to the arc generator 40, and the arc generator 40 is connected to the combustion consumable tube P.The arc generator 40 is connected to the workpiece H, and the combustion consumable tube P is connected to the arc generator 40.
An arc is generated between the material H and the workpiece H, and the tip portion of the combustion consumable tube P is melted by this arc.

That is, the tip portion of the combustion consumable tube P is melted by the arc and also by a combustion reaction caused by the jetting of combustion gas as appropriate.

(Example) Hereinafter, the present invention will be explained with reference to illustrated examples.

The continuous fusion cutting perforation machine of the present invention has a clamping mechanism capable of supporting the combustion consumable pipe P by holding it in a conductive state, and a combustion gas supply hole 30 provided in the peripheral wall of the combustion consumable pipe P. A gas supply mechanism capable of appropriately supplying combustion gas into P, and feed rods 22 and 23 operated along cylinders 20 and 21 with appropriate gas or liquid, move the combustion consumable tube P together with a clamping mechanism and a gas supply mechanism. It consists of a pair of fusing and perforating devices S1 and S2 each having a feeding mechanism that can freely move forward and backward, and the cathode of an arc generator 40 is connected to each clamping mechanism, and the metal workpiece H is connected to the clamping mechanism. The anode of the arc generator 40 is connected to the anode of the arc generator 40, so that an arc is generated between the tip of the combustion consumable tube P and the workpiece H. That is, the object to be melted H is melted by the arc generated between the combustion consumable tube P and the object to be melted H, and is also melted by the combustion reaction at the tip of the combustion consumable tube P caused by the appropriate jetting of combustion gas. It is configured so that

In addition, the fusing perforator located in the front fi! The tip portion of the combustion consumable tube P attached to the fusing/perforating device S2 located at the rear is formed so that it can be inserted into the rear end portion of the combustion consumable tube P attached to Sl. The fusing and perforating operation of the workpiece H, which has been performed by the fusing and perforating device S1, can be continued by the fusing and perforating device S2 located at the rear. That is, when the workpiece H is fused and perforated by the fusing and perforating device SI located at the front, and when the combustion consumable pipe P at the front burns out by a predetermined amount, the fusing and perforating device S2, which is waiting at the rear, is moved forward by the feeding mechanism. At the same time, the tip portion of the rear combustion consumable tube P attached to the rear welding and perforating device S2 is forcibly fitted into the rear end portion of the front combustion consumable tube P,
A new combustion consumable pipe P is connected to the combustion consumable pipe P that has become short due to exhaustion, and the welding and perforating work of the workpiece H is continued by supplying combustion gas from the rear welding and perforating device S2. It is possible to do so. Further, the front welding and perforating device S1 is formed so that it can release the clamping state of the combustion consumable pipe P and move back to standby at the rear, and the plurality of welding and perforating devices S1 and S2 perform welding and perforation of the workpiece H. It is designed so that work can be performed continuously without interruption.

The combustion consumable pipe P used in the continuous fusing drilling machine of the present invention is:
A pipe-shaped joint body P2 that is thicker than the vibrator-shaped consumable tube body P1 is fitted onto the base end of the vibrator-shaped consumable tube body P1, and the consumable tube body P1 and the joint body P2 are combusted and reacted by combustion gas. It is made of a material that allows the workpiece H to be fused and drilled. In addition, the consumable pipe main body P1 may be, for example, a round vibe-shaped steel pipe (see Figures 3 and 4), or a round pipe-shaped steel pipe in which a plurality of appropriate metal wires are preliminarily installed (see Figures 5 and 6). (see ), etc. The joint body P2 has a combustion gas supply hole 30 formed in its peripheral wall, and a check valve mechanism, which will be described later, is installed inside the joint body P2.

By the way, as shown in FIGS. 7 to 10, the combustion consumable tube P is constructed by attaching a thicker vib-shaped joint P2 to the distal end portion of the consumable tube main body P1, and
The combustion gas supply hole 30 may be formed in the circumferential wall near the proximal end of the fuel cell 1, and a check valve mechanism may be installed inside the hole.

The combustion gas supply holes 30 may be provided at a plurality of locations along the circumferential direction as shown in the illustrated example, or may be provided at only one location. Furthermore, the specific dimensions, location, number, etc. of the combustion gas supply holes 30 can be freely set as appropriate.

The clamping mechanism includes a chuck 1.1 comprising a chuck base body 2, 12 and a pair of upper and lower clamping pieces 3, 4, 13.14.
1, and a pair of upper and lower clamping pieces 3.4, 1
3.14 are attached to the tip of the chuck base 2.12 so that they can be moved apart from each other. The means for moving the pair of upper and lower clamping pieces 3, 4, 13.
．． 17. That is, as shown in the illustrated example, the upper clamping piece 3.13 is configured to be movable toward the lower clamping pieces 4, 14 by appropriate pressure from the chuck operating pipe 7.17,
Alternatively, although not shown, a chuck operating vibrator 7.
By applying appropriate pressure from 17, the pair of upper and lower clamping pieces 3 and 4
13 and 14 may be configured so that they can respectively move and hold the combustion consumable tube P. In addition, each clamping piece is 3゜4.13
．． For example, the appropriate pressure can be transmitted to the chuck base 2
A cylinder provided in the cylinder, a piston that is slidable inside the cylinder and connected to the upper clamping pieces 3 and 13 via a rod, and an elastic force is applied to the piston to constantly move it upward. The cylinder is filled with appropriate liquid, gas, etc. sent from the chuck actuation pipe 7.17, and the piston moves downward against the elastic force of the spring. It is constructed as follows (see FIGS. 3 to 10).

By the way, the clamping mechanism can easily and reliably clamp the outer peripheral surface of the combustion consumable tube main body P1 and the joint body P2 of the combustion consumable tube P,
Any structure may be used as long as it can support the entire combustion consumable tube P reliably and stably and can hold the combustion consumable tube P in a conductive state, and its specific configuration is limited to the illustrated example. isn't it.

The combustion gas supply mechanism includes a combustion gas supply pipe 8.18.
It is configured such that combustion gas can be supplied into the combustion consumable pipe P from the combustion gas supply hole 30 of the combustion consumable pipe body P1 or the joint body P2 through the combustion gas supply pipe. It is fed to the chucks 1 and 11 by the 8° 18, and passes through the communication holes of the chuck bases 2 and 12 and the communication holes of the lower clamping piece 4° 14, respectively, to the rubber gaskets 9 and 18.
19 into the grooves 9a, 19a, and the grooves 9a,
Combustion consumable pipe main body P1 or joint body P2 located at 19a
The structure is such that the combustion gas is reliably and smoothly fed from the combustion gas supply hole 30 toward the selling end of the consumable tube body Pll.

That is, the combustion gas supply mechanism may be any structure as long as it is configured so that the combustion gas is fed into the combustion consumable pipe P without leaking to the outside and is ejected toward the tip of the combustion consumable pipe P. The specific configuration is not limited to the illustrated example, and can be freely set as appropriate. still,
The rubber gaskets 9 and 19 ensure sufficient airtightness when the combustion consumable tube P is clamped between the chucks 1 and 11.

The feed mechanism has a base end portion of a feed rod 22.23 fixed to pistons 22a and 23a that are slidable within a cylinder 20.21, and a distal end portion of the feed rod 22.23 attached to the base of the chuck base 2.12. It is fixed to the end part and the switching valve 24
．． Gas (e.g.
air) or an appropriate liquid (e.g. oil) into the cylinder 20.
21, the feed rods 22, 23 are moved forward and backward along the cylinder 20.21, and the chuck base bodies 2, 12 are moved forward and backward together with the clamping mechanism and the gas supply mechanism. ing.

Furthermore, the combustion consumable tube P clamping portions of the pair of chucks 1.11 are formed to move forward on the same straight line, respectively.
When the front chuck 1 moves backward, the front chuck 1 must be moved so as not to contact the rear chuck 11 that is moving forward.
(not shown). In other words, the front chuck 1 that has released the gripping state of the combustion consumable tube P is the rear chuck 1 that is moving forward.
After moving upward, downward, sideways, etc. in parallel to avoid contact with 1, or moving in an oscillating manner, and then retreating in this state, the combustion consumable pipe P clamping part of chuck 1 moves in the same direction. It is configured to return to a straight line.

Incidentally, the feeding mechanism may be configured to be operated by means other than hydraulic pressure or air pressure, or any other arbitrary configuration may be adopted as appropriate.

Furthermore, a check valve mechanism is provided in the combustion consumable tube main body P1 or the joint body P2 of the combustion consumable tube P, and this check valve mechanism includes a valve seat body 31 through which a gas passage hole 33 is passed. ,
When the combustion gas is supplied from the combustion gas supply hole 30 formed in the peripheral wall of the combustion consumable pipe body P1 or the joint body P2, the valve body 32 closes the gas passage hole 33. This maintains the gas passage hole 33 in a closed state (see Figs. 3, 5, 7, and 9), allowing combustion to flow from the rear combustion consumable pipe P connected to the rear end portion of the combustion consumable pipe main body P1. When gas is supplied (see FIGS. 8 and 10), or when combustion gas is supplied from the rear combustion consumable pipe P connected to the rear end portion of the joint body B (see FIGS. 4 and 6), The valve body 32 is configured to release the gas passage hole 33 from being blocked.

That is, in the check valve mechanism shown in FIGS. 3 and 4, the gas passage hole 33 is penetrated through the center of the joint body P2, and the joint body P2 is slidable along the cylinder core direction. A substantially cylindrical valve seat body 31 installed in the rear end portion and a gas passage hole 3
3 is attached to the front opening periphery of the gas passage hole 33.
A substantially spherical valve body 32 that closes the valve body 31 is provided, and a combustion gas supply hole 30 is formed in the peripheral wall of the joint body P2 at a forward position within the sliding range of the valve seat body 31. When the rear combustion consumable pipe P is connected, the valve seat body 31 of the check valve mechanism is pressed by the tip of the combustion consumable pipe P, the valve seat body 31 slides forward, and its outer peripheral surface is exposed to combustion gas. The valve body 32 is configured to close the supply hole 30 and to be blown forward by the supply of combustion gas from the combustion consumable pipe P at the rear.

In addition, the check valve mechanism shown in Figs. 5 and 6 is used when the consumable tube main body P1 in which a large number of metal wires are installed inside the vibrator is used, and is similar to the above-mentioned one. , a substantially cylindrical valve seat body 31 having a gas passage hole 33 and slidable within the joint body P2, and a valve body 32 capable of closing a peripheral portion of the front opening of the gas passage hole 33. Therefore, when the rear combustion consumable pipe P is connected, the valve seat body 31 is pressed and its outer circumferential surface closes the combustion gas supply hole 30, and the combustion gas supply from the rear combustion consumable pipe P closes the valve seat body 31. The body 32 is configured to move forward to release the gas passage hole 33 from the closed state. By the way, the valve body 32 has a substantially T-shaped hook hook connected to a disc-shaped closing plate that closes the front opening peripheral portion of the gas passage hole 33 to release the closed state of the gas passage hole 33. A substantially T-shaped hook is formed to be hooked to the rear end surface portion of the valve seat body 31 when the valve seat body 31 is opened.

The check valve mechanism shown in FIG. 7 and FIG.
a substantially cylindrical valve seat body 31 that is penetrated through the center and is installed in the rear end portion of the combustion consumable tube body P1 so as to be able to slide freely inside the combustion consumable tube body P1 along the cylinder core direction; A substantially spherical valve body 32 is attached to the peripheral edge of the front opening of the gas passage hole 33 and closes the gas passage hole 33. The combustion gas supply hole 30 is formed in the peripheral wall of the combustion consumable tube main body P1, and when the rear combustion consumable tube P is connected, the tip of the sleeve 35 provided at the tip of the combustion consumable tube P is used to prevent a back check. The valve seat body 31 of the valve mechanism is suppressed, the valve seat body 31 slides forward, and its outer peripheral surface closes the combustion gas supply hole 30, and at the same time, the combustion gas from the combustion consumable pipe P at the rear is blocked. The valve body 32 is configured to be blown forward by the supply of .

The check valve mechanism shown in FIG. 9 and FIG.
3 is penetrated in the center and is slidable along the cylinder core direction inside the combustion consumable tube body P1.
A substantially cylindrical valve seat body 31 is installed inside the rear end portion, and a substantially spherical valve body 32 is attached to the peripheral edge of the front opening of the gas passage hole 33 to close the gas passage hole 33. It is constructed by drilling a combustion gas supply hole 30 in the peripheral wall of the combustion consumable pipe main body P1 at the front position within the sliding range of the valve seat body 31, and when the rear combustion consumable pipe P is connected, Combustion consumable pipe P
The flange portion 31a provided at the rear end of the valve seat body 31 of the check valve mechanism is pressed by the tip portion of the valve seat body 31, and the valve seat body 31 slides forward, and its outer peripheral surface closes the combustion gas supply hole 30. At the same time, the valve body 32 is blown forward by the supply of combustion gas from the combustion consumable pipe P at the rear.

The consumable pipe main body P1 and the joint body P2 may be connected by fitting means, screwing means, or other suitable means. In the figure, 34 is a stopper that projects from the inner peripheral surface of the rear end portion of the combustion consumable pipe body P1 or the joint body P2, and the tip of this stopper 34 extends along the outer peripheral surface of the valve seat body 31. It is located in the recessed notch groove and restricts the valve seat body 31 from moving backward or forward.

When working underwater, the arc generator 40 is of a direct current type, and its cathode is connected to each clamping mechanism via a cord 42, and its anode is connected to a cord 41.
The combustion consumable tube P is connected to the metal workpiece H via the metal workpiece H, and an arc is generated between the tip of the combustion consumable tube P and the workpiece H. Further, as the arc generator 40, an AC type one may be used for purposes other than underwater work.

By the way, the specific configuration, shape, dimensions, number, and arrangement state of the fusing perforation devices SL and S2, the specific configuration of the clamping mechanism, the specific configuration of the feeding mechanism, the specific configuration of the gas supply mechanism, and the specific configuration of the check valve mechanism. The specific structure, the specific shape of the chuck 1.11, the specific structure, shape, material, etc. of the combustion consumable tube P are not limited to the illustrated examples, and can be freely set as appropriate.

The present invention is constructed as described above.Next, an example of its use will be explained. First, the combustion gas supply hole 30 of the combustion consumable pipe P is surrounded by the concave groove 9a of the rubber packing 9. Clamped with the chuck 1 of S1, the combustion gas is supplied from the combustion gas cylinder through the combustion gas supply vibe 8 into the combustion consumable tube P, the front end portion of the combustion consumable tube P is combusted, and the object H to be melted is fused and perforated. do. At this time, the arc generator 40 connects the tip of the combustion consumable tube P and the workpiece H.
An arc is generated between the two and the object H to be melted is melted.

Then, when the welding and drilling work progresses and the combustion consumable pipe P is consumed to a predetermined length, the combustion gas supply hole 3 of the combustion consumable pipe P
0 is surrounded by the concave groove 19a of the rubber packing 19 by the chuck 11 of the rear fusing/perforating device S2, and the combustion gas is supplied into the combustion consumable pipe P from the combustion gas cylinder via the combustion gas supply vibe 18. , the rear welding and perforating device S2 is moved forward to forcibly fit and connect the tip of the rear combustion consumable tube P to the rear end of the front combustion consumable tube P which is being burned. At this time, when the rear combustion consumable pipe P is securely connected to the forward combustion consumable pipe P, the combustion gas supply hole 30 of the front combustion consumable pipe P is closed by the valve seat body 31, and the front combustion consumable pipe P is closed by the valve seat body 31. Combustion consumable pipe P
can be released from the pinched state.

Furthermore, when combustion gas is supplied into the other combustion consumable pipes P, the valve body 32 is blown forward by the pressure, the gas passage hole 33 is unblocked, and the combustion consumable pipe P in front is blown off.
Combustion gas is continuously supplied to continue the welding and drilling operation. Then, the fusing perforating device S is released from the clamping state.
1 retreats while taking appropriate detours and waits at the rear. Then, a new combustion consumable pipe P is installed and the above-mentioned operation is repeated, so that the welding and drilling operation of the workpiece H can be continued without interruption.

In addition, when connecting the rear combustion consumable tube P to the front combustion consumable tube P, the connection is properly screwed (for example, by screwing on the outer peripheral surface of the rear end portion of the combustion consumable tube main body P1 of the front combustion consumable tube P. Threading means between the male screw and the female screw threaded on the inner peripheral surface of the tip of the joint body B of the rear combustion consumable pipe P, or the inner peripheral surface of the rear end of the joint body B of the front combustion consumable pipe P. This may be done by screwing a female screw threaded on the front end of the combustion consumable pipe P with a male thread threaded on the outer peripheral surface of the tip of the combustion consumable pipe body P1 of the rear combustion consumable pipe P. After manually or automatically screwing the tip of the combustion consumable tube P to the rear end portion of the combustion consumable tube P held by the chuck 1 of the punching device S1, chuck 11
The combustion consumable tube P may be held between the chuck 11 of the rear welding and perforating device S2, and the chuck 1 of the forward welding and perforating device S1 holding the consumable consumable tube P. The distal end portion of the rear combustion consumable tube P may be automatically screwed onto the rear end portion of the combustion consumable tube P located at the rear.

(Effects of the Invention) Therefore, the continuous fusing perforator of the present invention has a clamping mechanism that can support the combustion consumable pipe P by clamping it in a conductive state, and a combustion gas supply hole provided in the peripheral wall of the combustion consumable pipe P. A gas supply mechanism capable of appropriately supplying combustion gas into the combustion consumable pipe P through the feed rods 22 and 23 with gas, liquid, etc. as appropriate.
Welding and perforating devices S1 and S are provided with a feeding mechanism that operates along cylinders 20 and 21 and is movable forward and backward together with a clamping mechanism and a gas supply mechanism for the combustion consumable pipe P.
2 are arranged, and each of the clamping mechanisms is connected to the arc generator 40, and the metal workpiece H and the arc generator 40 are connected as appropriate, so that the tip part of the combustion consumable tube P and the workpiece Thing H
The combustion consumable tube P installed in the forward welding perforation device S1 is configured such that an arc is generated between the combustion consumable tube P installed in the forward welding perforation device S1 and The tip of the pipe P is formed so that it can be inserted, and the welding and perforating work of the workpiece H, which was being performed by the fusing and perforating device S1 located at the front, is continued by the welding and perforating device S2 located at the rear. The front fusing and perforating device S1 is formed so that it can release the clamping state of the combustion consumable pipe P and move back to standby at the rear, and the plurality of fusing and perforating devices S1 and 82 Since the structure is designed so that the welding and drilling work of H can be performed continuously, even if the combustion consumable pipe P during the welding and drilling process wears out and becomes short, the welding and drilling work of the workpiece H will not be temporarily interrupted. A new combustion consumable tube P can be reliably added to the container after the combustion consumable tube P has become short due to wear, and the workpiece H
The welding and perforating work can be performed continuously by the welding and perforating device S2 located at the rear, making it possible to continue the welding and perforating work smoothly, and greatly improving the efficiency of the welding and perforating work. In addition, workers can easily carry out welding and drilling operations underwater, reducing the number of workers, as well as significantly shortening the work period by speeding up the welding and drilling process. It can be used without waste and is economically superior.

In particular, the continuous welding drilling machine of the present invention can be easily automated, which eliminates the need for workers to work in places with poor working environments, and allows for the continuous cutting and drilling of objects to be melted in water or the like.
This allows the welding and drilling work to be performed extremely safely and efficiently.

Furthermore, the feed rods 22 and 23 are suitably supplied with gas, liquid, etc.
is operated along the cylinder 20.21 to form a feeding mechanism that can move the combustion consumable tube P freely forward and backward together with the clamping mechanism and the gas supply mechanism, so the movement of the chuck 1.11 can be controlled reliably and easily. It becomes like this.

In addition, the arc generator 40 is connected to each of the clamping mechanisms that are electrically connected to the combustion consumable tube P, and the metal workpiece H and the arc generator 40 are appropriately connected to the tip of the combustion consumable tube P. Since the arc generator 40 is connected to the combustion consumable pipe P, an arc is generated between the combustion consumable pipe P and the workpiece H. This arc melts the tip of the combustion consumable tube P, and even when working underwater, the combustion state can be reliably maintained without misfire of the combustion consumable tube P. Moreover, the melting of the workpiece H by the arc and the welding and drilling of the workpiece H by burning the tip of the combustion consumable tube P by appropriate combustion gas combine to exhibit strong fusing and drilling ability. become.

In addition, by providing the gas supply mechanism with a rubber gasket 9.19 having grooves 9a and 19a, the grooves 9a and 19a
Combustion gas is reliably and smoothly fed into the consumable pipe main body Pl from the combustion gas supply hole 30 of the joint body P2 located at , and the combustion gas is sent into the combustion consumable pipe P without leaking outside. will be paid.

By the way, by providing the check valve mechanism, the combustion consumable tube body P1 or the joint body P2 of the rear combustion consumable tube P is connected to the rear end portion of the combustion consumable tube body P1 or the joint body P2 of the forward combustion consumable tube P. Just by adding the combustion consumable pipe P connecting the tip end, the valve seat body 31 of the check valve mechanism can be pushed forward, and the combustion gas supply hole 30 can be closed reliably and quickly since the inside can be seen. Further, when combustion gas is supplied from the combustion gas supply hole 30, the valve body 32 is connected to the gas passage hole 3.
3 can be reliably closed, and when combustion gas is supplied from the rear combustion consumable pipe P connected via the joint body P2, the gas passage hole 33 can be unblocked by the valve body 32. Become. Moreover, the configuration of the combustion consumable pipe P itself becomes simple, and a reliable connection state can be easily obtained via the joint body B.

[Brief explanation of the drawing]

The drawings illustrate the present invention; Fig. 1 is a schematic plan view showing the state of use, Fig. 2 is a partially cutaway front view of the chuck part, and Fig. 3 shows the combustion consumable pipe at the front and the combustion consumable pipe at the rear. FIG. 4 is a partial vertical side view of the state in which the rear combustion consumable tube is connected to the front combustion consumable tube, and FIGS. 5 to 10 show other embodiments. 5 is a partial vertical sectional side view of the state before the rear combustion consumable tube is connected to the front combustion consumable tube, and FIG. 6 is a partial longitudinal side view of the state before the rear combustion consumable tube is connected to the front combustion consumable tube. A longitudinal side view, Fig. 7 is a partial longitudinal side view of the state before the rear combustion consumable pipe is connected to the front combustion consumable pipe, and Fig. 8 is a state in which the rear combustion consumable pipe is connected to the front combustion consumable pipe. Partial longitudinal section side view of No. 9
The figure is a partial longitudinal side view of the state before the rear combustion consumable pipe is connected to the front combustion consumable pipe, and Figure 10 is a partial longitudinal side view of the state in which the rear combustion consumable pipe is connected to the front combustion consumable pipe. be. Sl...Fusing perforation device, S2...Fusing perforation device, 1
... chuck, 2... chuck base, 3... clamping piece, 4... clamping piece, 7... chuck operation vibration,
8... Combustion gas supply pipe, 9... Rubber gasket,
9a... Concave groove, 11... Chuck, 12... Chuck base, 13...
... Holding piece, 14... Holding piece, 17... Chuck operation pipe, 18... Combustion gas supply vibe, 19...
・Rubber packing, 19a--Concave groove, 20...Cylinder 21...Cylinder 22-
...Feed rod, 22a...Piston, 23...Feed rod, 23a...Piston, 24...Switching valve,
25...Switching valve, 26...Hose, 27...Hose, P...Combustion consumable pipe, Pl...Consumable pipe body, P2
...Joint body, 30...Combustion gas supply hole, 31...
Valve seat body, 31a... flange, 32... valve body, 33...
・Combustion gas passage hole, 34...Stopper 35...
Sleeve, 40... Arc generator, 41... Cord, 42... Cord, H... Flange-cutting material. Patent application Hito Fire Lance Industry Co., Ltd. @2

Claims (1)

[Claims] 1. A clamping mechanism capable of holding and supporting the combustion consumable tube in a conductive state, and a gas supply capable of appropriately supplying combustion gas into the combustion consumable tube through a combustion gas supply hole provided in the peripheral wall of the combustion consumable tube. A plurality of welding and perforating devices are arranged, each of which is equipped with a mechanism and a feed mechanism that can move the combustion consumable tube forward and backward together with the clamping mechanism and the gas supply mechanism by operating a feed rod along the cylinder with appropriate gas or liquid. In addition to connecting the clamping mechanisms and the arc generator, connect the metal object to be melted and the arc generator as appropriate to generate an arc between the tip of the combustion consumable tube and the object to be melted. configured to
Formed so that the tip portion of the combustion consumable tube attached to the welding and perforating device located at the rear can be inserted into the rear end portion of the combustion consumable tube attached to the welding and perforating device located at the front, The welding and perforating work of the object to be melted, which was performed by the fusing and perforating device located in the front, can be continued by the welding and perforating device located at the rear, and the fusing and perforating device in the front is used to hold and hold the combustion consumable pipe. Utilizes an arc and combustion consumable tube, which is formed so that it can retreat and stand by at the rear when the state is released, and is formed so that a plurality of welding and perforating devices can continuously perform welding and perforation work on the workpiece. continuous welding perforation machine.