Deep hole drilling apparatus and processing method thereof
Technical field:
The present invention relates to a kind of environment-friendly type deep hole drilling apparatus, especially for the various single tube internal discharging type deep hole machining system of mechanical field with and processing method.
Background technology:
Along with the high development of society with science and technology, people's environmental protection and energy saving consciousness is more and more stronger, and oil price is constantly soaring simultaneously, and people's fuel-economizing consciousness is also more and more stronger, and the scientific worker begins to develop various fuel oil substitutes one after another or do not have the few oily equipment of oil.
Deep hole machining is being played the part of important role in manufacturing industry, in machining, hole processing accounts for 1/3rd of processing total amount, and deep hole machining accounts for 40 percent of hole processing.Deep hole machining is one of the most expensive class of mechanical field cost, the tradition deep hole machining needs a large amount of oil to come chip removal, lubricated and cooling, because volatilization, corruption will inevitably pollute environment, in addition, owing to make and design reasons, the leakage problems of hydraulic system certainly will make the shopwork environment become badly, causes the waste of the oil product and the energy simultaneously.And when adopting the wet type deep hole processing, the expense relevant with cooling-lubricant is (17-30) % that accounts for cost of parts.
Summary of the invention:
The object of the present invention is to provide a kind of employing (partly) to do the environment-friendly type deep hole drilling apparatus of cutting, can reduce product cost, secondly improve the ecological environment, the 3rd is to improve working (machining) efficiency.Do cutting based on (partly) on the high-efficient cutting basis, will open the brand-new application prospect of deep hole Cutting Process undoubtedly, do not see relevant report at present at home and abroad as yet.
The present invention is achieved in that a kind of deep hole processing method, when cutter carries out deep hole machining to workpiece, sprays the compound mist of oil, water, air formation to cutter and finished surface, machined surface and cutter is lowered the temperature, is cooled off, and will process bits and discharge.
For than fine pore the time, when cutter carries out deep hole machining to workpiece, spray the compound mist of oil, water, air formation to cutter and finished surface, machined surface and cutter are lowered the temperature, cooled off, take out the bits device in the afterbody installation negative pressure of cutter simultaneously and strengthen processing the discharge of bits.
The state that efficient is higher is that cutter and the finished surface injection in this space of cutter and finished surface formation seal cavity, the compound mist that oil, water, air constitute lowered the temperature, cooled off machined surface and cutter.But the pressure of the compound mist of better utilization and discharge effect thus.
Its oil adopts degradable plant oil.
The present invention is achieved in that a kind of environment-friendly type deep hole drilling apparatus, comprises cutter etc., and form between the workpiece machining surface, cutter airtight passage before give and accept and the combined mist device be installed on the device, and the combined mist device device of giving and accepting before passing communicates with airtight passage.
At the afterbody of cutter adjustable solar term medium negative pressure is housed and takes out the bits device, and be installed on the interior channel of chip removal afterbody of knife bar.
The composition of combined mist device: the combined mist device comprises air inlet pipe, water inlet pipe, oil inlet pipe, and the port of export of three pipes is also installed atomizer.
Concrete structure is that air inlet pipe, water inlet pipe, oil inlet pipe are the fit pipe of three concentrics, three pipe ports of export installation atomizers.Shell body is an air inlet pipe, coaxial successively from outside to inside oil pipe, the water inlet pipe of being installed in the shell body, gap between air inlet pipe and the oil inlet pipe is an inlet channel, gap between oil inlet pipe and the water inlet pipe is an oil inlet passage, tube space is an intake tunnel in the water inlet pipe, shell body and water inlet pipe, oil inlet pipe port of export place are equipped with atomizing piece, can enter swirling flow atomizing groove secondary-atomizing again for obtaining better effect behind primary atomization.During larger aperture, preceding device and the combined mist device of giving and accepting uses separately, also can reach same purpose.
Principle:
Water injects from water inlet pipe, the gap of degradable plant oil between water inlet pipe, oil inlet pipe injected, compound at pipe end is the Water-In-Oil post, compressed air is entered by the space between housing and the oil inlet pipe, atomizing piece rotates at a high speed the Water-In-Oil post is atomized under the effect of oil, water, air, the atomizing for the second time under the compressed air that is entered by the swirling flow atomizing groove is sheared of compound mist is sprayed by nozzle then for thinner compound mist.Form the very thin compound mist of profit and be delivered to cutting region through once-combined (not being to mix) secondary-atomizing through pressure-air, wherein oil is used to lubricate, air and water smoke are used for cooling, and the degradable plant oil that the gas that utilized contains trace can directly discharge or filter the back recycling.Still nobody is used for deep hole machining with compound mist of oil at present.
Negative pressure is taken out the bits device and is mainly comprised airtight cavity, front nozzle, rear nozzle and inlet channel, and front nozzle is fixed on the cavity, and rear nozzle is connected with cavity, forward and backward nozzle match and between have gap (negative pressure gap), rotate rear nozzle and can regulate the negative pressure gap.Forward and backward nozzle hole cone angle is got between 27 °-35 °.The rear nozzle inner chamber is by being made up of the reducing pipe mixing chamber, face of cylinder mixing chamber, the flaring diffuser casing that adapt to gas flow, and the reducing pipe cone angle is got 5 °-7 ° usually.
Principle:
Compressed air is all pressed the chamber through cavity, by the high velocity jet backward of taper negative pressure gap between the forward and backward nozzle, form spray and inhale effect, produce the negative pressure swabbing effect at the knife bar tail end, because gas jet velocity higher (supersonic speed) so rear nozzle adopts reducing pipe+face of cylinder mixing chamber, is used for improving limit jet coefficient and reduces the pressure loss, in addition, can regulate the negative pressure gap to improve the actual ejection coefficient by back rotation rear nozzle.At present, unmannedly the gas medium negative pressure is taken out the bits device be used for deep hole machining.
The principle of overall work operation:
The combined mist device utilizes a spot of water and degradable plant oil to produce compound mist of oil, compound mist is through the device of before giving and accepting, part machined surface and knife bar gap are delivered to cutting region by pressure-air, wherein oil is used to lubricate, air and water smoke are used for cooling, high pressure mixed gas can quicken the fracture of smear metal, mist, smear metal is carried a large amount of heat in metal cuttings and is pushed in front end high, the rear end negative pressure is taken out under the double action of the swabbing effect of considering the device generation to be worth doing, take out bits device afterbody by negative pressure and discharge, the degradable plant oil that the gas that utilized contains trace can directly discharge or filter the back recycling.The present invention has embodied a concentrated reflection of the comprehensive characteristics of MQL technology MQL (Minimum QualityofLubrication), cold wind cooling and lubricating technology, atomizing cooling and lubricating technology, gas jet cooling and lubricating technology and in conjunction with the characteristic of deep hole machining, has avoided the defective of single technology.
The present invention has such advantage: the combined mist device utilizes a spot of water and degradable plant oil to produce compound mist of oil, realizes the half-dried cutting of deep hole, so saved the energy and reduced pollution to environment; Back negative pressure take out the bits device by compressed air as power, produce the negative pressure swabbing effect at the other end and resulted from efficient system chip removal ability; So the present invention can reduce product cost, secondly improve the ecological environment, the 3rd is to improve working (machining) efficiency.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of combined mist device of the present invention.
In Fig. 1,1 is workpiece; 2 is cutter head; 3 devices of giving and accepting before being; 4 is knife bar; 5 take out bits device cavity for negative pressure; 6 is the combined mist device; 15 is inlet channel; 16 is front nozzle; 17 is rear nozzle; 18 is the reducing pipe mixing chamber; 19 is face of cylinder mixing chamber; 20 is the flaring diffuser casing; In Fig. 2,7 is water inlet; 8 is oiler, and 9 is air intake, and 10 is atomizing piece, and 11 is the swirling flow atomizing groove, and 12 is housing, and 13 is oil inlet pipe, and 14 is water inlet pipe.
Specific embodiment:
Consult Fig. 1, a kind of deep hole drilling apparatus, comprise cutter etc., before give and accept and form airtight passage between device and workpiece machining surface, the cutter, the device of giving and accepting before the combined mist device passes communicates with airtight passage, through the compound mist of water oil of combined mist device atomizing, for reaching the purpose of working more efficiently, at the afterbody of cutter adjustable solar term medium negative pressure is housed and takes out the bits device, and be installed on the interior channel of chip removal afterbody of knife bar, can increase the bits ability of taking out.The principle of overall work operation: the combined mist device utilizes a spot of water and degradable plant oil to produce compound mist of oil, compound mist of oil is through the device of before giving and accepting, part machined surface and knife bar gap are delivered to cutting region by pressure-air, wherein oil is used to lubricate, air and water smoke are used for cooling, high pressure mixed gas can quicken the fracture of smear metal, mist, smear metal is carried a large amount of heat in metal cuttings and is pushed in front end high, the rear end negative pressure is taken out under the double action of the swabbing effect of considering the device generation to be worth doing, take out bits device afterbody by negative pressure and discharge, the degradable plant oil that the gas that utilized contains trace can directly discharge or filter the back recycling.
Consult Fig. 2, the composition of combined mist device: the combined mist device comprises air inlet pipe, water inlet pipe, oil inlet pipe, and the port of export of three pipes is also installed atomizer.Concrete structure is that air inlet pipe, water inlet pipe, oil inlet pipe are the fit pipe of three concentrics, three pipe ports of export installation atomizers.Shell body is an air inlet pipe, coaxial successively from outside to inside oil pipe, the water inlet pipe of being installed in the shell body, gap between air inlet pipe and the oil inlet pipe is an inlet channel, gap between oil inlet pipe and the water inlet pipe is an oil inlet passage, tube space is an intake tunnel in the water inlet pipe, shell body and water inlet pipe, oil inlet pipe port of export place are equipped with atomizing piece, can enter swirling flow atomizing groove secondary-atomizing again for reaching better effect behind primary atomization.
Principle: water injects from water inlet pipe, the gap of degradable plant oil between water inlet pipe, oil inlet pipe injected, compound at pipe end is the Water-In-Oil post, compressed air is entered by the space between housing and the oil inlet pipe, atomizing piece rotates at a high speed the Water-In-Oil post is atomized under the effect of oil, water, air, the atomizing for the second time under the compressed air that is entered by the swirling flow atomizing groove is sheared of compound mist is sprayed by nozzle then for thinner compound mist.Form the very thin compound mist of profit and be delivered to cutting region through once-combined (not being to mix) secondary-atomizing through pressure-air, wherein oil is used to lubricate, air and water smoke are used for cooling, and the degradable plant oil that the gas that utilized contains trace can directly discharge or filter the back recycling.Still nobody is used for deep hole machining with compound mist of oil at present.
Consult Fig. 1, negative pressure is taken out the bits device and is mainly comprised airtight cavity, front nozzle, rear nozzle and inlet channel, and front nozzle is fixed on the cavity, and rear nozzle and cavity adopt and be threaded, forward and backward nozzle match and between have gap (negative pressure gap), the rotation rear nozzle can regulate the negative pressure gap.Forward and backward nozzle hole cone angle is got between 27 °-35 °.The rear nozzle inner chamber is by being made up of the reducing pipe mixing chamber, face of cylinder mixing chamber, the flaring diffuser casing that adapt to gas flow, and the reducing pipe cone angle is got 5 °-7 ° usually.
Principle: compressed air is all pressed the chamber through cavity, by the high velocity jet backward of taper negative pressure gap between the forward and backward nozzle, form spray and inhale effect, produce the negative pressure swabbing effect at the knife bar tail end, because gas jet velocity higher (supersonic speed) so rear nozzle adopts reducing pipe+face of cylinder mixing chamber, is used for improving limit jet coefficient and reduces the pressure loss, in addition, can regulate the negative pressure gap to improve the actual ejection coefficient by back rotation rear nozzle.At present, unmannedly the gas medium negative pressure is taken out the bits device be used for deep hole machining.
Generally speaking, its deep hole processing method is, when cutter carries out deep hole machining to workpiece, sprays the compound mist that oil, water, air constitute to cutter and finished surface, machined surface and cutter lowered the temperature, cool off, and will process and consider discharge to be worth doing.For than fine pore the time, when cutter carries out deep hole machining to workpiece, spray the compound mist of oil, water, air formation to cutter and finished surface, machined surface and cutter are lowered the temperature, cooled off, take out the bits device in the afterbody installation negative pressure of cutter simultaneously and strengthen processing the discharge of bits.The state that efficient is higher is that cutter and the finished surface injection in this space of cutter and finished surface formation seal cavity, the compound mist that oil, water, air constitute lowered the temperature, cooled off machined surface and cutter.But the pressure of the compound mist of better utilization and discharge effect thus.Its oil adopts degradable plant oil.
Utilize outer chip removal gun drilling technology at present in the world, but the aperture of drilling is little of 2mm.And the aperture that bta deep hole drilling is cut seldom has less than 16mm's.Its main cause is that interior row's system of processing chip removal ability is low, is the important channel that solves the chip removal problem and take out the bits device efficiently.Deep hole drilling apparatus provided by the invention has been realized the cooling and lubricating system of the half-dried processing of deep hole, and the aperture of row's gun drilling expands to aperture among the 5mm-16mm in making.The present invention has embodied a concentrated reflection of the comprehensive characteristics of MQL technology MQL (Minimum Quality ofLubrication), cold wind cooling and lubricating technology, atomizing cooling and lubricating technology, gas jet cooling and lubricating technology and in conjunction with the characteristic of deep hole machining, has avoided the defective of single technology.