CN102705827A - Multi-stage perforation air supply device of numerical-control flame cutting machine - Google Patents
Multi-stage perforation air supply device of numerical-control flame cutting machine Download PDFInfo
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- CN102705827A CN102705827A CN2012102062554A CN201210206255A CN102705827A CN 102705827 A CN102705827 A CN 102705827A CN 2012102062554 A CN2012102062554 A CN 2012102062554A CN 201210206255 A CN201210206255 A CN 201210206255A CN 102705827 A CN102705827 A CN 102705827A
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Abstract
The invention relates to a multi-stage perforation air supply device of a numerical-control flame cutting machine. The multi-stage perforation air supply device consists of a pre-heating oxygen distribution pipeline, a cutting oxygen distribution pipeline and a fuel gas distribution pipeline. According to the multi-stage perforation air supply device of the numerical-control flame cutting machine, disclosed by the invention, parallelly connected high-low-pressure pipes are arranged between a pre-heating oxygen and fuel gas inlet and an exhaust pipe and can output high-pressure or low-pressure pre-heating oxygen and fuel gas as required; based on numerical control, a pre-heating operation is carried out through the matching between high-pressure pre-heating oxygen and high-pressure fuel gas so that the pre-heating time is shortened and the utilization efficiency of fuel gas is improved; a cutting operation is carried out through the matching between the low-pressure pre-heating oxygen and the low-pressure fuel gas so that the cutting precision can be ensured; and multi-path parallelly connected classification air supply branches are arranged between a cutting oxygen charge pipe and a cutting oxygen discharge pipe, and based on the numerical control, multi-stage airflow can be outputted instantly so that purposes of increasing perforation thickness, carrying out a multi-stage perforation operation and improving the perforation efficiency can be achieved. The multi-stage perforation air supply device of the numerical-control flame cutting machine, disclosed by the invention, has the advantages of short pre-heating time, good perforation quality, high perforation precision, high cutting speed, high cutting efficiency, and remarkable economical benefits.
Description
Technical field
The present invention relates to the cutting equipment technical field, especially a kind of multistage perforation feeder that is applied in the NC Flame Cutting equipment.
Background technology
In the flame cutting process, use combustion gas to cooperate oxygen through burning the workpiece part to be heated, make it to reach the melt-combustion state, the cutting oxygen that re-uses high-purity, high flow rate cuts and operation such as perforation.Existing flame cutting machine all is the pressure that presets cutting oxygen, preheat oxygen, combustion gas three road gas, directly affacts machine with on the cutting torch with tracheae.This structure is when the perforation operation, and the ubiquity cutting accuracy is not high, and cutting speed is lower, and preheating time is long, and the aperture time is long, and perforation thickness is little, shortcomings such as perforation inaccuracy.Confirm because the gas pressure in the supply air line is unique, thereby the length of flame of spraying is definite, can only be suitable for the cutting processing of specific thicknesses.For very thick sheet material, need long preheating time early stage, and the perforation length of flame in later stage is not enough, therefore can cause the aperture excessive, and the aperture is inhomogeneous, and shortcomings such as hole wall quality difference can not satisfy high-quality perforation requirement.
Summary of the invention
It is unique to the objective of the invention is to overcome in the prior art supply gas pressure; To shortcomings such as heavy-gauge sheeting perforation are of poor quality, a kind of multistage perforation feeder of NC flame cutting machine is provided, control through pressure classification cutting gas; Multistage each the road gas pressure of controlling automatically of cutting process follow procedure; Realize multistage perforation, shorten preheating time, improve punching rate, precision and quality.
Technical scheme of the present invention is following:
A kind of multistage perforation feeder of NC flame cutting machine is made up of preheat oxygen distribution circuit, cutting oxygen distribution circuit and gas distribution pipe road, and each road pipeline offers tap hole and gas path joint is installed on the tube wall of copper pipe; The preheat oxygen distribution circuit is shunted air feed through the low pressure line and the pressure duct of parallel connection by the preheat oxygen air inlet, and the gas distribution pipe road is shunted air feed through the low pressure line and the pressure duct of parallel connection by gas inlet; One end of cutting oxygen distribution circuit is communicated with cutting oxygen air inlet through pressure-reducing valve, magnetic valve; Pipeline between pressure-reducing valve and the magnetic valve is provided with the diversion three-way valve; The classification air feed branch road of multi-channel parallel is distributed in its bypass outlet through the oxygen dispensing branch; Series connection is provided with hand valve and magnetic valve on the classification air feed branch road, and output is connected on the gas path joint of cutting oxygen distribution circuit.
Further improvement as technique scheme: be in series with low-pressure relief valve, low-voltage solenoid valve and check valve on the low pressure line successively, be in series with high-pressure pressure-reducing valve and high-pressure solenoid valve on the pressure duct successively.
Said classification air feed branch road is provided with three the tunnel.
The other end series connection of cutting oxygen distribution circuit is provided with exhaust solenoid valve and silencer.
Beneficial effect of the present invention is following:
The present invention is provided with parallelly connected high-low pressure pipeline between the air inlet of preheat oxygen, combustion gas and escape pipe; Can export high pressure or low pressure preheat oxygen and combustion gas as required; Control through numerical control; Use the high pressure preheat oxygen to cooperate high-pressure gas to carry out preheating, reduced preheating time, improved the combustion gas service efficiency; Use the low pressure preheat oxygen to cooperate low-pressure fuel gas to carry out cutting operation, can guarantee cutting accuracy.Be provided with the classification air feed branch road of multi-channel parallel between cutting oxygen air inlet pipe and the cutting oxygen escape pipe, through numerical control control, the multistage air-flow of instantaneous output, can reach increases perforation thickness, carries out multistage perforation operation, improves the purpose of piercing efficiency.Preheating time of the present invention is short, and the perforation quality is good, precision is high, and cutting speed is fast, efficient is high, has remarkable economic efficiency.
Description of drawings
Fig. 1 is a sketch map of the present invention.
Among the figure: 1, preheat oxygen distribution circuit; 2, cutting oxygen distribution circuit; 3, gas distribution pipe road; 4, low pressure line; 5, pressure duct; 52, high-pressure solenoid valve; 6, copper pipe; 7, gas path joint; 8, Pressure gauge; 10, preheat oxygen air inlet; 20, cutting oxygen air inlet; 21, pressure-reducing valve; 22, diversion three-way valve; 23, magnetic valve; 24, oxygen dispensing branch; 25, hand valve; 26, magnetic valve; 27, exhaust solenoid valve; 28, silencer; 30, gas inlet; 41, low-pressure relief valve; 42, low-voltage solenoid valve; 43, check valve; 51, high-pressure pressure-reducing valve; 52, high-pressure solenoid valve.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described.
As shown in Figure 1; The multistage perforation feeder of NC flame cutting machine of the present invention is made up of with gas distribution pipe road 3 preheat oxygen distribution circuit 1, cutting oxygen distribution circuit 2; Each road pipeline offers tap hole and gas path joint 7 is installed on the tube wall of copper pipe 6, and is provided with Pressure gauge 8 in order to the detector tube internal gas pressure.Preheat oxygen distribution circuit 1 is all inserted by preheat oxygen air inlet 10 or gas inlet 30 shuntings through parallelly connected low pressure line 4 and pressure duct 5 with gas distribution pipe road 3; Be in series with low-pressure relief valve 41, low-voltage solenoid valve 42 and check valve 43 on the low pressure line 4 successively, be in series with high-pressure pressure-reducing valve 51 and high-pressure solenoid valve 52 on the pressure duct 5 successively.
One end of cutting oxygen distribution circuit 2 is communicated with cutting oxygen air inlet 20 through pressure-reducing valve 21, magnetic valve 23; Pipeline between pressure-reducing valve 21 and the magnetic valve 23 is provided with diversion three-way valve 22; The classification air feed branch road of three tunnel parallel connections is distributed in its bypass outlet through oxygen dispensing branch 24; Series connection is provided with hand valve 25 and magnetic valve 26 on the classification air feed branch road, and output is connected on the gas path joint 7 of cutting oxygen distribution circuit 2.The other end series connection of cutting oxygen distribution circuit 2 is provided with exhaust solenoid valve 27 and silencer 28.
The actual operation of boring a hole is operated according to following steps.
At first carry out preheating.Preheat oxygen high-pressure solenoid valve 52 is opened, and preheat oxygen low-voltage solenoid valve 42 is closed, output high pressure preheat oxygen in the copper pipe 6 of preheat oxygen distribution circuit 1; Simultaneously, combustion gas high-pressure solenoid valve 52 is opened, and combustion gas low-voltage solenoid valve 42 is closed, output high-pressure gas in the copper pipe 6 on gas distribution pipe road 3; High pressure preheat oxygen and high-pressure gas export the flame cutting torch to through gas path joint 7 and burn, and the workpiece part is heated.
After preheating reaches assigned temperature; The operation of boring a hole; This moment, magnetic valve 23 cut out, and according to the thickness of slab needs of perforation, the magnetic valve 26 on cutting oxygen magnetic valve 23 and three the classification air feed branch roads was controlled; Make it rhythm switching in a certain order, thereby to cutting torch multistage cutting oxygen stream is provided at short notice.Oxygen dispensing branch 24 has three classification air feed branch roads, only opens wherein one tunnel magnetic valve 26 and can realize the one-level perforation; The magnetic valve 26 of opening two-way is to realize the secondary perforation; Three tunnel magnetic valve 26 is all opened to realize three grades of perforation; Simultaneously, through through hand valve 25, can control the gas pressure in the branch road.This adjustment and presetting of time to gas pressure can reach increase perforation thickness, improves the purpose of cutting efficiency.Also be connected with exhaust solenoid valve 27 and silencer 28 on the cutting oxygen distribution circuit 2, purpose is used to discharge residual gas.
Cut then, preheat oxygen high-pressure solenoid valve 52 is closed, and preheat oxygen low-voltage solenoid valve 42 is opened, the preheat oxygen of output relatively low pressure in preheat oxygen distribution circuit 1; Magnetic valve 23 is opened, the cutting oxygen of output constant pressure in cutting oxygen distribution circuit 2; Simultaneously, combustion gas high-pressure solenoid valve 52 is closed, and combustion gas low-voltage solenoid valve 42 is opened, and in gas distribution pipe road 3, exports the combustion gas of relatively low pressure, adjusts with relatively low pressure through pressure-reducing valve and carries out cutting operation.
Claims (4)
1. the multistage perforation feeder of a NC flame cutting machine; Be made up of with gas distribution pipe road (3) preheat oxygen distribution circuit (1), cutting oxygen distribution circuit (2), each road pipeline offers tap hole and gas path joint (7) is installed on the tube wall of copper pipe (6); It is characterized in that: preheat oxygen distribution circuit (1) is shunted air feed through the low pressure line (4) and the pressure duct (5) of parallel connection by preheat oxygen air inlet (10), and gas distribution pipe road (3) are shunted air feed with pressure duct (5) by gas inlet (30) through the low pressure line (4) of parallel connection; One end of cutting oxygen distribution circuit (2) is communicated with cutting oxygen air inlet (20) through pressure-reducing valve (21), magnetic valve (23); Pipeline between pressure-reducing valve (21) and the magnetic valve (23) is provided with diversion three-way valve (22); The classification air feed branch road of multi-channel parallel is distributed in its bypass outlet through oxygen dispensing branch (24); Series connection is provided with hand valve (25) and magnetic valve (26) on the classification air feed branch road, and output is connected on the gas path joint (7) of cutting oxygen distribution circuit (2).
2. according to the multistage perforation feeder of NC flame cutting machine as claimed in claim 1; It is characterized in that: be in series with low-pressure relief valve (41), low-voltage solenoid valve (42) and check valve (43) on the low pressure line (4) successively, be in series with high-pressure pressure-reducing valve (51) and high-pressure solenoid valve (52) on the pressure duct (5) successively.
3. according to the multistage perforation feeder of NC flame cutting machine as claimed in claim 1, it is characterized in that: said classification air feed branch road is provided with three the tunnel.
4. according to the multistage perforation feeder of NC flame cutting machine as claimed in claim 1, it is characterized in that: the other end series connection of cutting oxygen distribution circuit (2) is provided with exhaust solenoid valve (27) and silencer (28).
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| CN2012102062554A CN102705827A (en) | 2012-06-21 | 2012-06-21 | Multi-stage perforation air supply device of numerical-control flame cutting machine |
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| CN2012102062554A CN102705827A (en) | 2012-06-21 | 2012-06-21 | Multi-stage perforation air supply device of numerical-control flame cutting machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071885A (en) * | 2012-12-28 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Cold copper hot cutting method |
| CN109676214A (en) * | 2019-02-13 | 2019-04-26 | 郑州立德机电设备有限公司 | A kind of pre-heating system before the high-strength material steel plate NC Flame Cutting of medium-thick type |
| CN116900445A (en) * | 2023-09-13 | 2023-10-20 | 陕西华秦新能源科技有限责任公司 | Flame cutting device based on quick lifting adjusting mechanism |
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| US3604631A (en) * | 1970-01-12 | 1971-09-14 | Berwyn E Etter | Welding and cutting torch |
| CN2754788Y (en) * | 2004-12-31 | 2006-02-01 | 无锡华联精工机械有限公司 | Gas path controlling structure for cutting thin plates of H shaped steel |
| CN101947680A (en) * | 2010-09-27 | 2011-01-19 | 安徽西锐重工科技有限公司 | Double column type numerical control flame cutting machine |
| CN101947679A (en) * | 2010-08-30 | 2011-01-19 | 常州亚泰焊割科技有限公司 | Method for reducing cutting overburning of straight flame cutting machine and gas channel |
| CN202675286U (en) * | 2012-06-21 | 2013-01-16 | 无锡华联精工机械有限公司 | Multistage punching gas-supply device of numerical-controlled flame cutting machine |
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2012
- 2012-06-21 CN CN2012102062554A patent/CN102705827A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3604631A (en) * | 1970-01-12 | 1971-09-14 | Berwyn E Etter | Welding and cutting torch |
| CN2754788Y (en) * | 2004-12-31 | 2006-02-01 | 无锡华联精工机械有限公司 | Gas path controlling structure for cutting thin plates of H shaped steel |
| CN101947679A (en) * | 2010-08-30 | 2011-01-19 | 常州亚泰焊割科技有限公司 | Method for reducing cutting overburning of straight flame cutting machine and gas channel |
| CN101947680A (en) * | 2010-09-27 | 2011-01-19 | 安徽西锐重工科技有限公司 | Double column type numerical control flame cutting machine |
| CN202675286U (en) * | 2012-06-21 | 2013-01-16 | 无锡华联精工机械有限公司 | Multistage punching gas-supply device of numerical-controlled flame cutting machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071885A (en) * | 2012-12-28 | 2013-05-01 | 江西稀有稀土金属钨业集团有限公司 | Cold copper hot cutting method |
| CN109676214A (en) * | 2019-02-13 | 2019-04-26 | 郑州立德机电设备有限公司 | A kind of pre-heating system before the high-strength material steel plate NC Flame Cutting of medium-thick type |
| CN109676214B (en) * | 2019-02-13 | 2023-09-05 | 郑州立德机电设备有限公司 | Preheating system for medium-thickness high-strength steel plate before numerical control flame cutting |
| CN116900445A (en) * | 2023-09-13 | 2023-10-20 | 陕西华秦新能源科技有限责任公司 | Flame cutting device based on quick lifting adjusting mechanism |
| CN116900445B (en) * | 2023-09-13 | 2023-12-19 | 陕西华秦新能源科技有限责任公司 | Flame cutting device based on quick lifting adjusting mechanism |
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Application publication date: 20121003 |