CN209094758U - A kind of plasma cutting machine - Google Patents
A kind of plasma cutting machine Download PDFInfo
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- CN209094758U CN209094758U CN201821826824.4U CN201821826824U CN209094758U CN 209094758 U CN209094758 U CN 209094758U CN 201821826824 U CN201821826824 U CN 201821826824U CN 209094758 U CN209094758 U CN 209094758U
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- cutting machine
- plasma cutting
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Abstract
The utility model discloses a kind of plasma cutting machine, are related to plasma cutting technique field.The plasma cutting machine includes cutting gun, first jet and feeder, and the first jet is connect with the cutting gun；The feeder is connect with the first jet, for providing compressed air.For the plasma cutting machine in cutting, cutting gun and first jet extend into underwater, and by first jet Xiang Shuizhong injecting compressed air, compressed air, which overflows the water surface, can reduce the concentration of hydrogen on the water surface, avoid combustion of hydrogen, to prevent water surface burning.
Description
Technical field
The utility model relates to plasma cutting technique field more particularly to a kind of plasma cutting machine.
Background technique
As shown in Figure 1, plasma cutting machine is when carrying out imderwater cutting, 1 ' of cutting gun protrude into the water surface in 2 ' of screw clamp it
Lower 3 ' of cutting workpiece, the water near 1 ' of cutting gun are electrolysed, and generate a certain amount of hydrogen and oxygen.When these hydrogen and
When oxygen overflows the water surface, the volumetric concentration of the hydrogen near the water surface is increased, and after meeting the Mars that cutting generates, the water surface can generate hydrogen
Combustion phenomena.
Utility model content
One purpose of the utility model is to propose a kind of method for plasma cutting, can be avoided hydrogen on the water surface and fire
It burns.
For this purpose, the utility model uses following technical scheme:
A kind of method for plasma cutting, comprising the following steps:
While cutting gun protrudes into imderwater cutting, Xiang Shuizhong injecting compressed air so that on the water surface hydrogen volumetric concentration
Less than prescribed concentration.
Wherein, the compressed air is distributed centered on the cutting gun.
Wherein, the prescribed concentration is 4%.
Wherein, when the cutting gun is located at distance to a declared goal on the water surface, the water surface below Xiang Suoshu cutting gun is blown.
Wherein, the distance to a declared goal is 3-5cm.
Another purpose of the utility model is to propose a kind of plasma cutting machine, can be avoided hydrogen on the water surface and fire
It burns.
For this purpose, the utility model uses following technical scheme:
A kind of plasma cutting machine, including cutting gun, the plasma cutting machine further include:
First jet, the first jet are connect with the cutting gun；And
Feeder, the feeder is connect with the first jet, for providing compressed air.
Wherein, the first jet is nozzle ring, the coaxial arrangement of the nozzle ring and the cutting gun.
Wherein, the plasma cutting machine further include:
Component is adjusted, the adjusting component is connect with the nozzle ring and the cutting gun respectively, the adjusting component
The relative position of the nozzle ring Yu the cutting gun can be adjusted, so that the nozzle ring and the cutting gun are coaxially set
It sets.
Wherein, the adjusting component includes:
One end of first connector, first connector is connect with the nozzle ring, and the other end is provided with kidney slot,
The kidney slot is radially extended along the cutting gun；
Mounting rack is provided on the cutting gun, bolt is connect after passing through the kidney slot and the mounting rack with nut.
Wherein, the plasma cutting machine further include:
First steam line, first steam line are connected to the nozzle ring and the feeder respectively, institute
The first steam line is stated to connect with the cutting gun.
Wherein, first connector is clamped and fastened on first steam line, and the first steam line energy
It is enough to rotate and slide up and down relative to first connector.
Wherein, first switch valve and first flow valve are provided on first steam line.
Wherein, the plasma cutting machine further include:
Second nozzle, the second nozzle are set to the cutting gun side, and the second nozzle is towards the cutting
The lower section of rifle is arranged, and the second nozzle is connected to the feeder.
Wherein, the plasma cutting machine further include:
Second steam line, second steam line are connected to the second nozzle and the feeder respectively.
Wherein, second switch valve and second flow valve are provided on second steam line.
Wherein, the plasma cutting machine further include:
Detection components, the detection components are used to detect distance of the end away from the water surface of the cutting gun；And
Controller, the controller are electrically connected with the detection components, for controlling the feeder to described first
Nozzle and second nozzle gas supply.
The utility model has the advantages that the utility model provides a kind of plasma cutting machine.The plasma cutting machine is in cutting, cutting
Rifle and first jet extend into underwater, and by first jet Xiang Shuizhong injecting compressed air, compressed air overflows the water surface can
To reduce the concentration of hydrogen on the water surface, combustion of hydrogen is avoided, to prevent water surface burning.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of plasma cutting machine in the prior art；
Fig. 2 is structural schematic diagram when plasma cutting machine provided by the utility model does not show body and controller；
Fig. 3 is that plasma cutting machine provided by the utility model does not show that structure when body, cutting gun and mounting rack is shown
It is intended to.
Wherein:
1, cutting gun；2, first jet；21, spray orifice；3, second nozzle；4, mounting rack；5, the first steam line；51,
One switch valve；52, first flow valve；6, the second steam line；61, second switch valve；62, second flow valve；7, feeder；
81, the first connector；811, kidney slot；82, the first bolt；83, the second connector；9, controller；
1 ', cutting gun；2 ', sink；3 ', workpiece.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
A kind of method for plasma cutting is present embodiments provided, can be adapted for high powered plasma imderwater cutting.Deng from
When sub- imderwater cutting, cutting gun extend into the water surface hereinafter, the flue dust and arc light that generate cutting are all only absorbed by the water.
When cutting, the water near cutting gun is electrolysed, and generates a certain amount of hydrogen and oxygen.When these hydrogen and
When oxygen overflows the water surface, the concentration of hydrogen is increased near the water surface, and after hydrogen encounters the Mars that cutting generates, hydrogen will be in the water surface
Burning, influences cutting effect.
To solve the above problems, protruding into imderwater cutting in cutting gun in method for plasma cutting provided in this embodiment
Meanwhile Xiang Shuizhong injecting compressed air, compressed air overflow the water surface together with the hydrogen that electrolysis generates.It is dilute due to compressed air
Effect is released, the volumetric concentration of hydrogen on the water surface can be reduced to prescribed concentration or less.Wherein, prescribed concentration is that hydrogen meets fire combustion
The critical concentration of burning.In the present embodiment, prescribed concentration can be 4%.By the way that the volumetric concentration of hydrogen is reduced to critical concentration
Hereinafter, can be to avoid on the water surface the phenomenon that combustion of hydrogen.
For the concentration for preferably diluting hydrogen, compressed air can be distributed around the axis of cutting gun, so that compressed air
It is evenly distributed on cutting small arms accessary, preferably dilutes the concentration of hydrogen.
When the workpiece such as cutting gun cutting steel plate, granular dross can be generated, dross is suspended on the water surface, is easily entered
In the nozzle of cutting gun, to damage cutting gun, influence normal use and the service life of cutting gun, improve plasma cut at
This.
To avoid dross from entering in cutting gun, when cutting gun is moved to distance to a declared goal on the water surface, by cutting gun
It blows on the water surface of lower section, so that dross avoids dross from entering during cutting gun protrudes into underwater and cut far from cutting gun
In burning torch, to prevent cutting gun blocking impaired, guarantee normal use and the service life of cutting gun.
Optionally, distance to a declared goal can determine according to actual needs, in the present embodiment, and distance to a declared goal is chosen for 3-5cm, example
Such as 3cm, 3.5cm, 4cm, 4.5cm, 5cm.
The present embodiment additionally provides a kind of plasma cutting machine, can be applied to underwater plasma cutting technology, can keep away
Exempt from the problem of hydrogen water surface burning occur.
As shown in Fig. 2, plasma cutting machine includes body and the cutting gun 1 that is set on body, cutting gun 1 can be opposite
Body goes up and down and moves horizontally, so that cutting gun 1 cuts workpiece according to desired guiding trajectory.Specifically, lifting group is provided on body
Part, translation component and mounting rack 4, cutting gun 1 are installed on mounting rack 4, and lifting assembly and translation component are connect with mounting rack 4,
It is mobile for driving mounting rack 4, so that cutting gun 1 be driven to go up and down or translate.
When plasma cutting machine works, workpiece to be cut is placed in sink, and lifting assembly drives mounting rack 4 to moving down
It is dynamic, so that the end of cutting gun 1 extend into the water surface or less.Later, translation component drives cutting gun 1 to move in the horizontal direction, with
Just workpiece is cut.
It cuts in engineering, the water near cutting gun 1 will be electrolysed, to generate hydrogen and oxygen.After hydrogen overflows the water surface,
Density of hydrogen on the water surface can be made significantly raised.Due to hydrogen easily aptitude to burn, hydrogen and the fire generated when the cutting of cutting gun 1
Star contacts after-combustion, the phenomenon that water surface burning occurs, influences normally to cut, and endangers equipment and the safety of staff.
The problem of to avoid the occurrence of water surface burning, plasma cutting machine further includes first jet 2 and feeder 7.First
Nozzle 2 is connect with cutting gun 1, and close to the end of cutting gun 1.First jet 2 is connected to feeder 7, and feeder 7 can be with
Compressed air is provided to first jet 2.When cutting gun 1 protrudes into below the water surface, first jet 2 also is located at below the water surface.Cutting
While rifle 1 is cut, for first jet 2 to underwater injecting compressed air, misty compressed air will disturb water, and with electrolysis aquatic products
Raw hydrogen and oxygen overflows the water surface together.Compressed air dilutes the volumetric concentration of hydrogen above the water surface, and can pass through control
The volumetric concentration control of hydrogen is being met the fiery critical concentration burnt once by the flow of compressed air, to avoid the hydrogen on the water surface
Gas burning guarantees that plasma cutting machine works normally.
In order to preferably dilute the concentration of hydrogen, combustion of hydrogen is avoided, first jet 2 can be nozzle ring, cutting gun 1
It is arranged in nozzle ring, and nozzle ring and cutting gun 1 are coaxially disposed.Multiple open has been uniformly arranged in the circumferential direction on nozzle ring
The spray orifice 21 of mouth down, equably to inject compressed gas to the surrounding of cutting gun 1, so that near cutting gun 1 above the water surface
Density of hydrogen dilution everywhere uniformly, avoids the occurrence of the problem of localized hydrogen gas burns.
Nozzle ring and cutting gun 1 are coaxially disposed, and spray orifice 21 is opening down, can be to avoid the compressed air shadow of injection
Ring the normal cutting of cutting gun 1.
As shown in Figures 2 and 3, plasma cutting machine further includes the first steam line 5, and the first steam line 5 can be vertical
It places, the upper end is connected to feeder 7, and lower end is connected to by elbow with nozzle ring, to supply into nozzle ring.
In order to guarantee that nozzle ring and cutting gun 1 are coaxially disposed, plasma cutting machine further includes adjusting component, adjusts component
The relative position of adjustable nozzle ring and cutting gun 1, to ensure that nozzle ring and cutting gun 1 are coaxially disposed.
Specifically, adjustment component includes the first connector 81, and one end of the first connector 81 and the first steam line 5 connect
It connects, the other end is provided with kidney slot 811, and connecting hole is provided on mounting rack 4, and the first bolt 82 passes through kidney slot 811 and connection
The first nut of Kong Houyu tightens connection, so that the first connector 81 be connect with mounting rack 4.By adjusting the first bolt 82 in waist
Position in shape hole 811, the relative position of adjustable nozzle ring and cutting gun 1.In the present embodiment, kidney slot 811 is along cutting
Burning torch 1 radially extends, when change in location of first bolt 82 in kidney slot 811, on the inside of adjustable nozzle ring with cut
The distance between 1 axis of burning torch.
In the present embodiment, the first connector 81 is fixed by way of clamping with the first steam line 5, the first connector 81
It is also adjustable with the link position of the first steam line 5.Specifically, the first holding holes are provided on the first connector 81, the
The aperture of one holding holes is slightly smaller than the diameter of the first steam line 5, and the first holding holes are radially to the end of the first connector 81
Portion extends to form notch, and the opposite two sides of notch are respectively arranged with through-hole.First connector 81 is connect with the first steam line 5
When, the first steam line 5 is arranged in the first holding holes, and is tightened after two through-holes of the second screw bolt passes with the second nut
It is fixed, so that the first steam line 5 is clamped in the first holding holes, realize the first steam line 5 and the first connector
81 fixation.
Before gripping the first steam line 5, nozzle ring can be adjusted by rotating the first steam line 5
Position, so that the axis of nozzle ring and the central axis of kidney slot 811 are located in the same vertical plane.Due to kidney slot 811
It is radially extending along cutting gun 1, it can be ensured that the center of nozzle ring and the axis line in the horizontal direction of cutting gun 1
Consistent with the extending direction of kidney slot 811, only needing to adjust position of first bolt 82 in kidney slot 811 later can ensure that
Nozzle ring and cutting gun 1 are coaxial.
In addition, gripping between the first steam line 5, on acceptable opposite first connector 81 of the first steam line 5
Lower slider adjusts the underwater injection depth of compressed air so as to adjust the distance between nozzle ring and 1 end of cutting gun.
For convenience of the opening and closing of control nozzle ring and the flow of compressed air, can also be arranged on the first steam line 5
There are first switch valve 51 and first flow valve 52.First switch valve 51 is used to control the on-off of the first steam line 5, first flow
Valve 52 is used to control the flow of the compressed air of nozzle ring offer.
To avoid the dross generated when cutting from entering in cutting gun 1, plasma cutting machine is additionally provided with second nozzle 3.The
Two nozzles 3 are set to the side of cutting gun 1, and second nozzle 3 is arranged towards the lower section of cutting gun 1, and is connected to feeder 7.
When cutting gun 1 is located at water surface top distance to a declared goal, second nozzle 3 is blown to the water surface of 1 lower section of cutting gun, will be cut
Dross below cutting mill on the water surface distally pushes, thus guarantee cutting gun 1 during extending into underwater not with dross
Contact guarantees normal use and the service life of cutting gun 1 so that dross be avoided to block cutting gun 1.
Optionally, second nozzle 3 and first jet 2 can share same feeder 7, can also be separately connected different
Feeder 7.
As shown in figure 3, second nozzle 3 and first jet 2 are connected separately with a feeder 7, and second nozzle 3 passes through the
Two steam lines 6 are connected to the feeder 7.Second steam line 6 can be vertically arranged, and the second steam line 6 passes through the
Two connectors 83 are connect with the first steam line 5, so that first jet 2 and second nozzle 3 is fixed.
Second connector 83 connects the first steam line 5 and the second steam line 6 by way of clamping.Specifically,
Two connectors 83 include symmetrically arranged first collet and the second collet, and clamping the is provided between the first collet and the second collet
The third holding holes of the second steam line 6 of the second holding holes and clamping of one steam line 5.Third bolt pass through the first collet and
Cooperation is tightened with third nut after second collet, so that the first collet and the second collet be fixed, realizes 5 He of the first steam line
The connection of second steam line 6.
Before tightening third bolt and third nut, the second steam line 6 can relative to the second connector 83 rotate with
And slide up and down, by the rotation and sliding of the second steam line 6, the height and second nozzle 3 of adjustable second nozzle 3
Direction, the gas for spraying second nozzle 3 blows the dross of the lower section of cutting gun 1 open.
To adjust the opening and closing of second nozzle 3 and the flow of air-flow, second switch can be set on the second steam line 6
Valve 61 and second flow valve 62.Second switch valve 61 is used to control the on-off of the second steam line 6, and second flow valve 62 is for controlling
The flow for the gas that second nozzle 3 processed provides.
For the degree of automation for improving plasma cutting machine, plasma cutting machine further includes controller 9 and detection components.Inspection
Survey component and be able to detect distance of the end away from the water surface of cutting gun 1, controller 9 respectively with detection components, first switch valve 51, the
One flow valve 52, second switch valve 61 and second flow valve 62 are electrically connected.Controller 9 can be according to the testing result of detection components
Feeder 7 is controlled to supply to first jet 2 and second nozzle 3.
Specifically, detection components may include range sensor, such as laser range sensor, detect cutting gun 1 and water
The distance between face.When the height that detection components detect that cutting gun 1 is located on the water surface is equal to distance to a declared goal, detection components
Electric signal is sent to controller 9, controller 9 controls the opening of second switch valve 61 based on the received electrical signal, and as needed
Second flow valve 62 is adjusted, so that second nozzle 3 is blown to the water surface, blows dross open.Later, cutting gun 1 continues to water surface movable,
It extend into underwater.When cutting gun 1 starts cutting, controller 9 controls first switch valve 51 and opens, and adjusts first as needed
Flow valve 52, so that 2 Xiang Shuizhong injecting compressed air of first jet, to prevent combustion of hydrogen.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (11)
1. a kind of plasma cutting machine, including cutting gun (1), which is characterized in that the plasma cutting machine further include:
First jet (2), the first jet (2) connect with the cutting gun (1)；And
Feeder (7), the feeder (7) connect with the first jet (2), for providing compressed air.
2. plasma cutting machine as described in claim 1, which is characterized in that the first jet (2) is nozzle ring, described
The coaxial arrangement of nozzle ring and the cutting gun (1).
3. plasma cutting machine as claimed in claim 2, which is characterized in that the plasma cutting machine further include:
Component is adjusted, the adjusting component is connect with the nozzle ring and the cutting gun (1) respectively, the adjusting component energy
The relative position of the nozzle ring Yu the cutting gun (1) is enough adjusted, so that the nozzle ring and the cutting gun (1) are same
Axis setting.
4. plasma cutting machine as claimed in claim 3, which is characterized in that the adjusting component includes:
One end of first connector (81), first connector (81) is connect with the nozzle ring, and the other end is provided with waist
Shape hole (811), kidney slot (811) the radially extending along the cutting gun (1)；
Be provided with mounting rack (4) on the cutting gun (1), bolt pass through the kidney slot (811) and the mounting rack (4) afterwards with
Nut connection.
5. plasma cutting machine as claimed in claim 4, which is characterized in that the plasma cutting machine further include:
First steam line (5), first steam line (5) connect with the nozzle ring and the feeder (7) respectively
Logical, first steam line (5) connect with the cutting gun (1).
6. plasma cutting machine as claimed in claim 5, which is characterized in that first connector (81) is clamped and fastened on institute
State on the first steam line (5), and first steam line (5) can relative to first connector (81) rotate and on
Lower slider.
7. plasma cutting machine as claimed in claim 5, which is characterized in that be provided on first steam line (5)
One switch valve (51) and first flow valve (52).
8. such as plasma cutting machine of any of claims 1-7, which is characterized in that the plasma cutting machine is also wrapped
It includes:
Second nozzle (3), the second nozzle (3) are set to the cutting gun (1) side, and the second nozzle (3) direction
The lower section of the cutting gun (1) is arranged, and the second nozzle (3) is connected to the feeder (7).
9. plasma cutting machine as claimed in claim 8, which is characterized in that the plasma cutting machine further include:
Second steam line (6), second steam line (6) respectively with the second nozzle (3) and the feeder (7)
Connection.
10. plasma cutting machine as claimed in claim 9, which is characterized in that be provided on second steam line (6)
Two switch valves (61) and second flow valve (62).
11. plasma cutting machine as claimed in claim 8, which is characterized in that the plasma cutting machine further include:
Detection components, the detection components are used to detect distance of the end away from the water surface of the cutting gun (1)；And
Controller (9), the controller (9) are electrically connected with the detection components, for controlling the feeder (7) Xiang Suoshu
First jet (2) and the second nozzle (3) gas supply.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018217993477 | 2018-11-02 | ||
| CN201821799347 | 2018-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209094758U true CN209094758U (en) | 2019-07-12 |
Family
ID=67158476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821826824.4U Active CN209094758U (en) | 2018-11-02 | 2018-11-07 | A kind of plasma cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209094758U (en) |
-
2018
- 2018-11-07 CN CN201821826824.4U patent/CN209094758U/en active Active
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