CN101767291A - Low-temperature spraying system and technology of gear cutting equipment - Google Patents
Low-temperature spraying system and technology of gear cutting equipment Download PDFInfo
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- CN101767291A CN101767291A CN200910103007A CN200910103007A CN101767291A CN 101767291 A CN101767291 A CN 101767291A CN 200910103007 A CN200910103007 A CN 200910103007A CN 200910103007 A CN200910103007 A CN 200910103007A CN 101767291 A CN101767291 A CN 101767291A
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Abstract
The invention relates to a low-temperature spraying system and a technology of gear cutting equipment, relevant to a gear cutting machine tool technology and mainly aimming at the clean reconstruction of a gear cutting machine tool. The low-temperature spraying system is characterized in that a low-temperature gas-liquid spraying system is arranged on the gear cutting machine tool; generally, the low-temperature gas-liquid spraying system comprises a gaseous fluid passage, a liquid fluid passage and a gas-liquid mixed flow spraying opening, wherein the gaseous fluid passage is communicated with an appointed air refrigeration processing system, and the liquid fluid passage is communicated with an output opening of a hydraulic accumulator; the gas-liquid mixed flow spraying opening generates low-temperature liquid fog, and the low-temperature liquid fog is sprayed to a cutting point or a heating area of a transmission position of the machine tool; and moreover, the spraying flow rate, the spraying pressure, the spraying temperature and the liquid concentration can be regulated. When in work, the gas-liquid mixed flow spraying opening and a heating point of a cutter or the transmission position can always keep a synchronous displacement relationship. The invention has the advantages that the gear cutting machine tool uses low-temperature gas-liquid spraying to replace cooling liquid, the use quantity of the cooling liquid is greatly reduced, energy resources are saved, the pollution is prevented, the service life of the cutter can also be prolonged because the temperature of the heating point of the machine tool is lowered, the tool change time is saved, and an enterprise can obtain benefits from clean processing.
Description
Technical field:
The present invention relates to the low-temperature spraying system and the technology of gear cutting equipment, relevant with gear cutting machining tool technology, be primarily aimed at the cooling in the gear cutting process, reach the temperature rise, minimizing cutting fluid consumption and the antipollution purpose that reduce machine cut point or transmission hot zone.
Background technology:
In recent years, pollute in order to reduce cutting fluid, at the metal cutting manufacture field, dry type, half dry type cutting technology come into vogue.
Usually, DRY CUTTING is meant the processing mode that does not use cutting fluid fully, also cries the dry type cutting, and very popular abroad, its technical characterstic is: under the superelevation linear velocity, allow heat in metal cutting come the anxious just disengagement of blade that is transmitted to; This mode is often used little cutting-in, big feed and ultrahigh speed processing fully without cutting fluid; Require lathe to have high rigidity, high strength and high rotating speed: cutter must use the good village's material of red hardness and require high strength; Shortcoming is that the equipment one-time investment is big, cutter is expensive, tipping has randomness, and difficulty is given legacy equipment is transformed.
The half dry type cutting is to add the method that micro-mist of oil replaces cooling agent with air; The air multi-source is in being arranged on lathe air outside compressor, and sneaks into the minute quantity cutting fluid by atomizer, directly sprays to cutting point, implements the spraying cooling of trace and lubricated; Here it is so-called MQL (micro lubricating) cutting technology.This technology, external how on turning, milling and grinding equipment, the use.
In metal cutting processing common apparatus, the stock removal action of gear cutting process equipment cutter is calculated the most complicated a kind of.Because cutter tooth has meshing relation, be again Machining of Curved Surface, calibration processing, multitool is interrupted, the fluting cutting, the required precision height, the caloric value of cutting region is relatively large, and the heat radiation cooling condition is poor, when the cutting region difficulty is given the effective supply that obtains cooling fluid, very easily because of the overheated cutter that burns; Especially use high-speed steel tool processing, the easier generation of this phenomenon, therefore, this moment, lathe can only use lower linear velocity.
Along with the gear cutting development of technology, both at home and abroad,, promote the use about the dry type cutting technology being used for the achievement in research of gear cutting machine.This equipment that does not use cutting fluid fully, even use compressed air, its puff prot is also far away from cutting point, compressed air just is used for blowing open near the smear metal that is deposited in the machining district, be not to come cutting point is implemented cooling and lubricated with it,, high-temperaure coating arranged again because the cutter red hardness is good, therefore, do not need to spray micro-mist of oil to cutting point yet.
Say technically, the research of relevant gear cutting machine wet type cutting technology is not abandoned yet, many newly-designed equipment, still adopt the type of cooling of a large amount of finish sprays, different is: in order to reduce the cutting temperature rise, equipment has all increased the spray flow of cooling fluid greatly, and relies on cold oil (water) unit of being with refrigeration system to control, reduce the temperature rise of cutting fluid; Too high in order to prevent because of temperature rise, be forced to use a large amount of cutting fluids and the fume pollution that produces, lathe often disposes hermetically sealed guard shield again.
Between above-mentioned reason, relevant gear cutting process equipment uses the report of normal temperature micro lubricating cutting (MQL) technology few.To such an extent as at present, existing gear machining apparatus still adopts finish spray cooling cutting way mostly, part adopts the dry type cutting way.
Before and after calendar year 2001, the cold air jet machine that we succeed in developing, the normal temperature gas flow temperature of compressed air hose input can be dropped to below 0～-60 ℃, pass through insulating tube again, these low-temperature airflows are transported in the injection apparatus, sneak into micro cutting liquid, the cutting region of turning, Milling Process lathe has been implemented the micro lubricating under the low temperature (MQL) cutting, respond well.Look into new discovery, this technology also has application abroad, and the cold wind cutting is named by Japan.But, so far, still only be used for turning, milling and grinding because the particularity of gear cutting process technology, with the cold wind cutting technology be used for gear cutting processing relevant report we also do not see.
In addition, the hot zone of the gear of gear cutting machine, bearing, other transmission original paper and power drill/driver, also often use traditional finish cooling and lubricating mode, in fact the cooling effect of this mode is also undesirable, certainly, provide the low-temperature atomizing air-flow by a cold air jet machine, the technology that the cold nebulization cooling is implemented in the cutting point and the hot zone, transmission position of gear cutting machine is not seen as yet yet simultaneously.
Summary of the invention:
The objective of the invention is to, overcome the deficiency of above-mentioned existing Gear cutting machines bed technique, be gear cutting machining tool configuration unique low-temperature spraying system, make it obtain to have the function that can spray to low temperature gas-liquid mixed atomizing fluids cutting point and other transmission hot zone, replace a large amount of uses of cooling fluid with Cryogenic air, thereby constitute the low-temperature spraying system and the technology of gear cutting equipment.
Usually, the present invention is on the gear cutting machining tool, be provided with the low temperature gas-liquid injection system 3 that forms by fluid liquid passage 2 and gaseous fluid passage 1, it is characterized in that: the fluid liquid passage 2 of low temperature gas-liquid injection system 3, communicate with the liquid outlet of hydraulic accumulator 5, gaseous fluid passage 1 communicates with the gas delivery port of air cooling treatment system 6; The output of fluid liquid passage 2 and gaseous fluid passage 1 fluid communication are formed gas-liquid mixed flow jet 4; Gas-liquid mixed flow jet 4 is implemented cooling, lubricated over against processing cutting point or transmission hot zone to these zones, constitutes the low-temperature spraying system and the technology of gear cutting equipment.
For not with the air-treatment technology of the vortex tube refrigeration mode of high energy consumption and semiconductor refrigerating mode mutually not roughly the same, air cooling treatment system 6 of the present invention is meant: use low boiling point working medium the indirect type of cooling, use the circulation compression indirect refrigeration mode of cold-producing medium or use the air cooling treatment system of direct refrigeration modes that air adiabatic expands etc.
In order to strengthen cooling effect, gas-liquid mixed flow jet 4 of the present invention, can be a plurality of different directions over against cutting point, and be fixed on add man-hour can be all the time and the synchronization-moving position of cutting point.
For other hot zone is cooled off, gas-liquid mixed flow jet 4 of the present invention also can carry out the cold nebulization cooling by the enter the mouth bearing 10 of 11 pairs of lathes of gas-liquid; This kind mode, gas-liquid mixed flow jet 4 can be a plurality of hot zones over against gear, bearing, other transmission original paper and power drill/driver, and can keep equidistant position with the hot zone all the time when being fixed on work.
The fluid pressure of hydraulic accumulator 5 of the present invention can come from the ejector action of this pressure gas source 7, gaseous fluid passage 1 or pump class etc. independently.
For concentration and mist flow, the pressure and temperature etc. of controlling fluid liquid in the air-flow, at gaseous fluid passage 1, fluid liquid passage 2, low temperature gas-liquid injection system 3, gas-liquid mixed flow jet 4, hydraulic accumulator 5, air cooling treatment system 6, the region of interest of pressure gas source 7 grades all can be provided with electricity, liquid and manual regulator control system.
Usefulness of the present invention is: use cold nebulization to replace cooling fluid, significantly reduced the use amount of cutting fluid, saved the energy, prevented pollution; Because the temperature of cutting point reduces, cutter life can prolong, and has saved tool change time, has reduced cost, has improved processing benefit, and enterprise is benefited from cleaning processing.
Description of drawings:
Accompanying drawing is the low-temperature spraying system and the technical pattern signal of gear cutting equipment, wherein:
Fig. 1 is a spraying cutting cooling structure form of the present invention;
Fig. 2 is an another kind of spraying cutting cooling structure form of the present invention;
Fig. 3 is the cooling signal of the present invention to other hot zone of gear cutting machine.
1---gaseous fluid passage, 2---fluid liquid passage, 3---low temperature gas-liquid injection system, 4---gas-liquid mixed flow jet, the 5---hydraulic accumulator, 6 ... the air cooling treatment system, 7 ... pressure gas source, 8 ... hobboing cutter, 9 ... processed gear 10 ... main shaft bearing, 11---gas-liquid inlet.
The specific embodiment:
Below, use maximum gear-hobbing machines to be embodiment in conjunction with the accompanying drawings with in the gear cutting machine, the invention will be further described:
As Fig. 1, on the hobboing cutter case of gear-hobbing machine, be equipped with low temperature gas-liquid injection system 3, it is made up of fluid liquid passage 2 and gaseous state fluid passage 1; Fluid liquid passage 2 inserts in the gaseous fluid passage 1, and the fluid liquid of their output communicates with gaseous fluid, and obtains mixed aerosol at gas-liquid mixed flow jet 4 places.Fluid liquid passage 2 communicates with the liquid outlet of hydraulic accumulator 5, and fluid pressure can come from the ejector action of pressure gas source 7, gaseous fluid passage 1 or pump class independently; Gaseous fluid passage 1 communicates with the gas delivery port of air cooling treatment system 6; The gas of air cooling treatment system 6 is from pressure gas source 7; Low temperature gas-liquid injection system 3
Gas-liquid mixed flow jet 4 is over against the Gear Processing cutting region, because low temperature gas-liquid injection system 3 also is fixed on the hobboing cutter case, therefore, gas-liquid mixed flow jet 4 can move up and down with hobboing cutter 8, gas-liquid mixed flow jet 4 can keep low coverage to spray relation with heat generating spot all the time, till the cold nebulization working angles of finishing processed gear 9.In order to strengthen cooling effect, low temperature gas-liquid injection system 3 and gas-liquid mixed flow jet 4 can be provided with a plurality of near hobboing cutter 8 simultaneously, and spray simultaneously.Because at gaseous fluid passage 1, fluid liquid passage 2, low temperature gas-liquid injection system 3, gas-liquid mixed flow jet 4, hydraulic accumulator 5, air cooling treatment system 6, the region of interest of pressure gas source 7 grades, electricity, liquid and manual regulator control system all can be installed, and therefore, the flow of spraying, pressure, temperature and strength of fluid can both be controlled.
Air cooling units such as direct refrigeration modes shown in Figure 1, that air cooling treatment system 6 can use the indirect type of cooling of low boiling point working medium, the circulation compression indirect refrigeration mode of using cold-producing medium or use air adiabatic to expand; Its air-in communicates with compressed air source 7, and air cleaning, dewater unit can be set, to keep the cleanliness factor and the low dew point of air.
As shown in Figure 2, version of the present invention also can be adjusted accordingly, for example: different with Fig. 1 is, the fluid liquid passage 2 of gas-liquid injection system 3, not directly to insert in the gaseous fluid passage 1, form atomizing but directly fluid liquid is injected the air-flow that sprays from gaseous fluid passage 1 from the outside.
As shown in Figure 3, the present invention also can implement the cold nebulization cooling to the main shaft bearing of gear-hobbing machine, and main shaft bearing 10 among the figure, can obtain low temperature liquid fog cooling fluid from gas-liquid mixed flow jet 4 by air flow inlet 11.
During use, start air cooling treatment system 6 and gear-hobbing machine, be fixed on the low temperature gas-liquid injection system 3 on the hobboing cutter case, just can pass through gas-liquid mixed flow jet 4, to the engagement place of hobboing cutter 8 with processed gear 9, eject low temperature liquid mist, cutting point is implemented cold nebulization cut.Certainly, also introduce them in the hobboing cutter case so long, simultaneously the main shaft bearing in the case be carried out the fog cooling of low temperature liquid.
Owing to be synchronized with the movement, dividing the tooth cutting, is the shared characteristics of gear machining apparatus, therefore, gas-liquid injection system 3 also can be arranged on other gear cutting process equipments such as gear shaping, shaving, roll flute and use, and constitutes the gear cutting machining tool of various band cold nebulization functions.
Claims (5)
1. the low-temperature spraying system of gear cutting equipment and technology, on the gear cutting machining tool, be provided with the low temperature gas-liquid injection system that forms by fluid liquid passage and gaseous fluid passage, it is characterized in that: the fluid liquid passage of low temperature gas-liquid injection system, communicate with the liquid outlet of hydraulic accumulator, the gaseous fluid passage communicates with the gas delivery port of air cooling treatment system; The output of fluid liquid passage and gaseous fluid passage fluid communication are formed gas-liquid mixed flow jet; Gas-liquid mixed flow jet is implemented the cold nebulization cooling and lubricating over against processing cutting region or transmission hot zone to these zones, constitutes the low-temperature spraying system and the technology of gear cutting equipment.
2. the low-temperature spraying system of gear cutting equipment according to claim 1 and technology, it is characterized in that: described air cooling treatment system is meant, uses the air-refrigeration system of the indirect type of cooling of low boiling point working medium, the circulation compression indirect refrigeration mode of use cold-producing medium or the direct refrigeration modes that the use air adiabatic expands etc.
3. the low-temperature spraying system of gear cutting equipment according to claim 1 and technology, it is characterized in that: described gas-liquid mixed flow jet can be a plurality of over against cutting point, and be fixed on add man-hour can be all the time and the synchronization-moving position of cutting point.
4. the low-temperature spraying system of gear cutting equipment according to claim 1 and technology, it is characterized in that: described gas-liquid mixed flow jet, can be a plurality of hot zones, and can keep equidistant position with the hot zone all the time when being fixed on work over against gear, bearing, other transmission original paper and power drill/driver.
5. the low-temperature spraying system of gear cutting equipment according to claim 1 and technology is characterized in that: the fluid pressure of described hydraulic accumulator can come from the ejector action of pressure gas source, gaseous fluid passage or pump class etc. independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910103007A CN101767291A (en) | 2009-01-06 | 2009-01-06 | Low-temperature spraying system and technology of gear cutting equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910103007A CN101767291A (en) | 2009-01-06 | 2009-01-06 | Low-temperature spraying system and technology of gear cutting equipment |
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| CN101767291A true CN101767291A (en) | 2010-07-07 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121073A (en) * | 2013-01-24 | 2013-05-29 | 安徽力成机械装备有限公司 | Numerical control vertical type gear rolling machine |
| CN105498566A (en) * | 2014-09-23 | 2016-04-20 | 上海航天设备制造总厂 | Gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus |
| CN106052417A (en) * | 2016-07-21 | 2016-10-26 | 苏州誉衡兴自动化科技有限公司 | Spray cooling device for automatic machine tool |
| CN106413961A (en) * | 2014-05-09 | 2017-02-15 | 三菱重工工作机械株式会社 | Hobbing machine |
| CN107685253A (en) * | 2017-09-14 | 2018-02-13 | 中信戴卡股份有限公司 | One kind is used for the mach lubricating arrangement of wheel |
| CN107791320A (en) * | 2016-08-29 | 2018-03-13 | 广东工业大学 | A kind of drilling cooling means of wiring board |
| CN112091333A (en) * | 2020-09-22 | 2020-12-18 | 重庆大学 | Nozzle of numerical control worm grinding wheel gear grinding machine and control method thereof |
| CN116460372A (en) * | 2023-06-19 | 2023-07-21 | 莱芜泰山煤矿机械有限公司 | Cooling structure for gear hobbing machine |
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| JPH10337632A (en) * | 1997-06-09 | 1998-12-22 | Wako Giken Kogyo Kk | Supply device of cutting liquid and cutting gas |
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| JPH10337632A (en) * | 1997-06-09 | 1998-12-22 | Wako Giken Kogyo Kk | Supply device of cutting liquid and cutting gas |
| CN101209528A (en) * | 2006-12-26 | 2008-07-02 | 浙江工业大学 | Cooling device for cutting process |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121073A (en) * | 2013-01-24 | 2013-05-29 | 安徽力成机械装备有限公司 | Numerical control vertical type gear rolling machine |
| CN106413961A (en) * | 2014-05-09 | 2017-02-15 | 三菱重工工作机械株式会社 | Hobbing machine |
| CN106413961B (en) * | 2014-05-09 | 2018-10-02 | 三菱重工工作机械株式会社 | Gear-hobbing machine |
| CN105498566A (en) * | 2014-09-23 | 2016-04-20 | 上海航天设备制造总厂 | Gas-liquid two-phase mixed low-temperature nitrogen gas jet flow generation apparatus |
| CN105498566B (en) * | 2014-09-23 | 2020-11-06 | 上海航天设备制造总厂 | Gas-liquid two-phase flow mixed low-temperature nitrogen jet generating device |
| CN106052417A (en) * | 2016-07-21 | 2016-10-26 | 苏州誉衡兴自动化科技有限公司 | Spray cooling device for automatic machine tool |
| CN107791320A (en) * | 2016-08-29 | 2018-03-13 | 广东工业大学 | A kind of drilling cooling means of wiring board |
| CN107685253A (en) * | 2017-09-14 | 2018-02-13 | 中信戴卡股份有限公司 | One kind is used for the mach lubricating arrangement of wheel |
| CN112091333A (en) * | 2020-09-22 | 2020-12-18 | 重庆大学 | Nozzle of numerical control worm grinding wheel gear grinding machine and control method thereof |
| CN112091333B (en) * | 2020-09-22 | 2022-04-26 | 重庆大学 | Nozzle of numerical control worm grinding wheel gear grinding machine and control method thereof |
| CN116460372A (en) * | 2023-06-19 | 2023-07-21 | 莱芜泰山煤矿机械有限公司 | Cooling structure for gear hobbing machine |
| CN116460372B (en) * | 2023-06-19 | 2023-09-05 | 莱芜泰山煤矿机械有限公司 | Cooling structure for gear hobbing machine |
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