CN102240755A - Device and method for moulding and forming micro-turbine - Google Patents
Device and method for moulding and forming micro-turbine Download PDFInfo
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- CN102240755A CN102240755A CN2011101414848A CN201110141484A CN102240755A CN 102240755 A CN102240755 A CN 102240755A CN 2011101414848 A CN2011101414848 A CN 2011101414848A CN 201110141484 A CN201110141484 A CN 201110141484A CN 102240755 A CN102240755 A CN 102240755A
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Abstract
The invention discloses a device and method for moulding and forming a micro-turbine, and relates to a device and method for forming a micro-turbine, for solving the problems in the prior art having low material utilization rate, low processing efficiency, high processing cost and unsuitable batch production in the event of manufacturing the micro-turbine. The device comprises a male mould, a female mould, a female mould holder, an ejector rod, an electrically heated component, a temperature sensor, a temperature control meter and a first screw. A groove is arranged in the middle of the upper head face of the female mould holder. The female mould is in the groove of the female mould holder. The female mould and the female mould holder are detachably connected. A formed groove is arranged in the middle of the upper head face of the female mould. A blade groove is arranged on the lower head face of the formed groove. The male mould is in the formed groove of the female mould. The female mould holder is in the electrically heated component. The electrically heated component and the female mould holder are glidingly connected. A probe of the temperature sensor is contacted with the female mould. A signal output end of the temperature sensor is connected with a signal input end of the temperature control meter. A signal output end of the temperature control meter is connected with the electrically heated component. The device is used for forming the micro-turbine.
Description
Technical field
The present invention relates to a kind of miniature turbine building mortion and method.
Background technology
Micromachine is so that its yardstick is little, in light weight, inertia is little, energy consumption is low, integrated high characteristics, under micro-electro-mechanical systems is unified the promotion of microsystems technology, is with a wide range of applications.The manophyll wheel pump is to be the minisize fluid machinery of medium with the fluid, is with a wide range of applications in medical treatment, space flight and modern industry.The principle of manophyll wheel pump is constantly to carry liquid by the rotation of miniature impeller, has advantages such as efficient height, stable performance, life-span length.Its critical component is miniature impeller, and miniature impeller has material impact to efficient, life-span and the stability etc. of pump.So, process high-quality, miniature impeller part is significant cheaply.At present, miniature turbine mainly adopts MEMS technology, fine electric spark shaping process technology, fine Machining Technology and fine electric spark Milling Process technology etc.The MEMS process technology has certain limitation, the parts of processing tiny engine all are two-dimensional structures, and what the moulding of blade was adopted is straight wall construction, and its hydrodynamic performance has been subjected to influence, rapidoprint is limited simultaneously, and this also is the unavoidable problem of silicon etching technology.The fine electric spark forming technique can process the axial-flow type miniature turbine impeller of non-straight wall construction, but the process-cycle of fine electric spark process technology is long and in process because the loss of electrode, the machining accuracy of workpiece is variation gradually, for complicated more three-dimensional structure, the spark-erosion sinking process technology also is difficult to realize.Fine Machining Technology is used and is subjected to certain restriction owing to be subjected to the restriction of cutter and rapidoprint.Simultaneously, there is certain difficulty in these technology at low-cost, mass manufacture view.
By literature search, Chinese patent application number is that 200810144607.1 application for a patent for invention proposes to adopt the silicon etching method to make miniature turbine.This manufacture method can realize the manufacturing of miniature turbine impeller monolithic molding and axial multistage turbine blade.But because limited, process-cycle of this processing method material therefor is long, used corrosive liquid has shortcomings such as contaminative, technology cost height, working (machining) efficiency are low to environment in the processing, has limited the realization of its mass production.The patent of invention of China Patent No. 200510057065.0 proposes to utilize the method for machining to make small-sized compressor impeller.This processing method working modulus is low, and the processing cost height also is not suitable for large-scale mass production.In the process of miniature impeller, the uniformity between the part is relatively low, and interchangeability is poor, and along with the reducing of manophyll size of wheel, gives the assembling between the member and be used certain problem of bringing.
Summary of the invention
The purpose of this invention is to provide a kind of miniature turbine building mortion and method, have when prior art is made miniature turbine to solve that stock utilization is low, working (machining) efficiency is low, processing cost is high and the problem of unsuitable mass production.
The present invention addresses the above problem the technical scheme of taking to be:
Miniature turbine moulding apparatus of the present invention comprises punch, die, die socket, push rod, electrical heating elements, temperature sensor, temperature controller and first screw; The middle part of the upper surface of die socket is provided with first groove, die places in first groove of die socket, die and die socket removably connect, the middle part of the lower surface of die socket is provided with the 3rd hole, between first groove and the 3rd hole, be provided with second hole that communicates with the two on the die socket, radially be provided with the 4th hole that communicates with first groove on the sidewall of die socket, the middle part of the upper surface of die is provided with grooving, the middle part of the lower surface of die is provided with first hole that communicates with grooving, the lower surface of grooving is provided with blade groove, first hole communicates and coaxial setting with second hole, the aperture in second hole is greater than the aperture in first hole, the lower end of push rod is provided with boss, the boss of push rod places in second hole, the upper end of push rod places in first hole, first screw is threaded with the 3rd hole, the upper end of first screw leans on the lower end of the boss of push rod, punch places in the grooving of die, the middle part of the lower surface of punch is provided with second groove, die socket places in the electrical heating elements, electrical heating elements and die socket are slidingly connected, the sidewall of electrical heating elements is provided with the 5th hole with the coaxial setting in the 4th hole, temperature sensor place in the 4th hole and the 5th hole in, the probe of temperature sensor contacts with die, the signal output part of temperature sensor links to each other with the signal input part of temperature controller, and the signal output part of temperature controller is connected with electrical heating elements.
The miniature turbine manufacturing process that utilizes above-mentioned building mortion is to realize according to following steps: one, adjust push rod, make the upper surface of push rod concordant with the lower surface of grooving, then blank is put into the grooving of die, punch is placed on the blank in the grooving of die; Two, connect electrical heating elements, die socket is heated, die is heated to 300 ℃～450 ℃; Three, when die is heated to the predetermined temperature of step 2, under the effect of forcing press, apply the pressure of 2000N-10000N to punch, blank produces plastic deformation under the mold pressing effect of punch, when blank is filled with grooving and blade groove, forcing press is out of service, blank finishes at the grooving internal shaping, makes miniature turbine; Four, unload lower punch,, push rod is moved up miniature turbine is ejected from grooving, obtain the miniature turbine finished product by screwing first screw.
The invention has the beneficial effects as follows:
(1) the present invention is a technological means forming micro turbine with the isothermal precision moulded formation, only uses once cover building mortion of the present invention and can realize the miniature turbine part that low cost, mass production, quality height and interchangeability are good.The miniature turbine blade that this device processes is distributed on the turbine disk along hoop, and each turbine has 2～10 blades.
(2) the present invention adopts the die forming process, makes blank flow vertically, not only can realize the shaping of volume miniature turbine structure; Also can the shaping blade height and thickness ratio is bigger and complex-curved blade, and the uniformity of each blade that can well guarantee to be shaped, the inventive method can direct forming go out desired miniature turbine member, avoid secondary operations, had advantages such as stock utilization height, working (machining) efficiency height and cost are low.
(3) the present invention can realize that blade and the turbine disk are integrally formed, blade is vertical with the turbine disk to be installed, loading and shaping vertically, not only drip molding microstructure such as streamline are along contoured profile, and be beneficial to and simplify the mould structure and the drip molding demoulding, have good comprehensive mechanical performance, when satisfying turbine and rotating at a high speed to the part machinery performance demands.Simultaneously, save the operations such as installation of blade, can guarantee the uniformity of drip molding.
(4) the present invention makes full use of second groove in the punch, in the time of the die forming blade, forms mold pressing part middle part and raises up, and blank is flowed easily, avoids producing the shaping dead band, can effectively reduce shaping load, helps improving the part forming quality.
(5) Mould Machining of the present invention adopts designed micro-wheels diel electrical discharge machining process, this processing technology integrated use multiple processing method such as fine electric spark line cutting processing and fine electric spark processing and forming, it is more clear to have mold profile, the uniformity of each blade is better, the rigidity of micro-wheels punch is big, realizes height and the bigger blade processing of width.
Description of drawings
Fig. 1 is a miniature turbine building mortion overall structure front view of the present invention, and Fig. 2 is a schematic diagram of blank being put into the die grooving, and Fig. 3 is the partial enlarged drawing at I place among Fig. 1.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1 and Fig. 3 present embodiment is described, the miniature turbine moulding apparatus of present embodiment comprises punch 1, die 2, die socket 3, push rod 4, electrical heating elements 5, temperature sensor 6, temperature controller 7 and first screw 8; The middle part of the upper surface of die socket 3 is provided with the first groove 3-3, die 2 places in the first groove 3-3 of die socket 3, die 2 removably connects with die socket 3, the middle part of the lower surface of die socket 3 is provided with the 3rd hole 3-2, between the first groove 3-3 and the 3rd hole 3-2, be provided with the second hole 3-1 that communicates with the two on the die socket 3, radially be provided with the 4th hole 3-4 that communicates with the first groove 3-3 on the sidewall of die socket 3, the middle part of the upper surface of die 2 is provided with grooving 2-1, the middle part of the lower surface of die 2 is provided with the first hole 2-2 that communicates with grooving 2-1, the lower surface of grooving 2-1 is provided with blade groove 2-1-1, the first hole 2-2 communicates and coaxial setting with the second hole 3-1, the aperture of the second hole 3-1 is greater than the aperture of the first hole 2-2, the lower end of push rod 4 is provided with boss, the boss of push rod 4 places in the second hole 3-1, the upper end of push rod 4 places in the first hole 2-2, first screw 8 is threaded with the 3rd hole 3-2, the upper end of first screw 8 leans on the lower end of the boss of push rod 4, punch 1 places in the grooving 2-1 of die 2, the middle part of the lower surface of punch 1 is provided with the second groove 1-1, die socket 3 places in the electrical heating elements 5, electrical heating elements 5 is slidingly connected with die socket 3, the sidewall of electrical heating elements 5 is provided with the 5th hole 5-1 with the coaxial setting of the 4th hole 3-4, temperature sensor 6 place in the 4th hole 3-4 and the 5th hole 5-1 in, the probe of temperature sensor 6 contacts with die 2, the signal output part of temperature sensor 6 links to each other with the signal input part of temperature controller 7, and the signal output part of temperature controller 7 is connected with electrical heating elements 5.
The bound temperature that the temperature controller 7 of present embodiment is set according to temperature and the temperature control controller 7 of input relatively, when the temperature of input is higher than the design temperature upper limit, temperature controller 7 is controlled electrical heating elements 5, heating stops; When the temperature of input is lower than the design temperature lower limit, temperature controller 7 control electrical heating elements 5, heating starting.So be provided with, the temperature of blank is controlled in the scope of setting.
The specific embodiment two: in conjunction with Fig. 1 present embodiment is described, the material of the punch 1 of present embodiment, die 2, die socket 3 and push rod 4 is 5CrNiMo.So be provided with, material property is reliable, adheres to specification.Other is identical with the specific embodiment one.
The specific embodiment three: in conjunction with Fig. 1 present embodiment is described, the die 2 and the die socket 3 of present embodiment removably connect by at least four second screws.So be provided with, with second screw die is fixed on the die socket, easy installation and removal ejects behind the mold pressing part forming in the process and can die do not taken out of from die socket because of the frictional force effect of part and die inwall, and have stressed evenly, be difficult for causing part to destroy or distortion.Other is identical with the specific embodiment one.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the electrical heating elements 5 of present embodiment is the resistance-type heating collar.So be provided with, easy to operate, thermal efficiency height.Other is identical with the specific embodiment one or two.
The specific embodiment five: in conjunction with Fig. 1 present embodiment is described, the temperature sensor 6 of present embodiment is a thermocouple temperature sensor.So be provided with, advantages such as this temperature sensor has that temperature measurement range is big, price is low, heat outputting electromotive force height, the linearity is good, repdocutbility is good and at high temperature oxidation resistance is strong meet design requirement.Other is identical with the specific embodiment one or two.
The specific embodiment six: in conjunction with Fig. 1 present embodiment is described, the temperature controller 7 of present embodiment is the digital display adjusting apparatus.So be provided with, the temperature that this temperature controller can be used for temperature sensor show and automatically the control electric heater startup and close, can effectively blank temperature be controlled in the scope of setting.Meet design requirement.Other is identical with the specific embodiment five.
The specific embodiment seven: present embodiment is described in conjunction with Fig. 2, the described building mortion of any one specific embodiment carries out the miniature turbine manufacturing process to present embodiment in the specific embodiment one to six in order to utilize, the miniature turbine manufacturing process is to realize according to following steps: one, adjust push rod 4, make the upper surface of push rod 4 concordant with the lower surface of grooving 2-1, then blank 9 is put into the grooving 2-1 of die 2, punch 1 is placed on the blank 9 in the grooving 2-1 of die 2; Two, connect electrical heating elements 5, die socket 3 is heated, die 2 is heated to 300 ℃～450 ℃; Three, when die 2 is heated to the predetermined temperature of step 2, under the effect of forcing press, apply the pressure of 2000N-10000N to punch 1, blank 9 produces plastic deformation under the mold pressing effect of punch 1, when blank 9 is filled with grooving 2-1 and blade groove 2-1-1, forcing press is out of service, blank 9 finishes at grooving 2-1 internal shaping, makes miniature turbine; Four, unload lower punch 1,, push rod 4 is moved up miniature turbine is ejected from grooving 2-1, thereby obtain the miniature turbine finished product by screwing first screw 8.
The specific embodiment eight: in conjunction with Fig. 2 present embodiment is described, the thickness of the blade of the miniature turbine finished product that the present embodiment step 4 makes is 50-300um, and blades height is 0.5～1.0mm.Other is identical with the specific embodiment seven.
Claims (8)
1. miniature turbine moulding apparatus, it is characterized in that: this device comprises punch (1), die (2), die socket (3), push rod (4), electrical heating elements (5), temperature sensor (6), temperature controller (7) and first screw (8); The middle part of the upper surface of die socket (3) is provided with first groove (3-3), die (2) places in first groove (3-3) of die socket (3), die (2) removably connects with die socket (3), the middle part of the lower surface of die socket (3) is provided with the 3rd hole (3-2), be positioned on the die socket (3) between first groove (3-3) and the 3rd hole (3-2) and be provided with second hole (3-1) that communicates with the two, radially be provided with the 4th hole (3-4) that communicates with first groove (3-3) on the sidewall of die socket (3), the middle part of the upper surface of die (2) is provided with grooving (2-1), the middle part of the lower surface of die (2) is provided with first hole (2-2) that communicates with grooving (2-1), the lower surface of grooving (2-1) is provided with blade groove (2-1-1), first hole (2-2) communicates and coaxial setting with second hole (3-1), the aperture in second hole (3-1) is greater than the aperture of first hole (2-2), the lower end of push rod (4) is provided with boss, the boss of push rod (4) places in second hole (3-1), the upper end of push rod (4) places in first hole (2-2), first screw (8) is threaded with the 3rd hole (3-2), the upper end of first screw (8) leans on the lower end of the boss of push rod (4), punch (1) places in the grooving (2-1) of die (2), the middle part, lower surface of punch (1) is provided with second groove (1-1), die socket (3) places in the electrical heating elements (5), electrical heating elements (5) is slidingly connected with die socket (3), the sidewall of electrical heating elements (5) is provided with the 5th hole (5-1) with the coaxial setting in the 4th hole (3-4), temperature sensor (6) place in the 4th hole (3-4) and the 5th hole (5-1) in, the probe of temperature sensor (6) contacts with die (2), the signal output part of temperature sensor (6) links to each other with the signal input part of temperature controller (7), and the signal output part of temperature controller (7) is connected with electrical heating elements (5).
2. miniature turbine building mortion according to claim 1 is characterized in that: the material of punch (1), die (2), die socket (3) and push rod (4) is 5CrNiMo.
3. miniature turbine building mortion according to claim 1 is characterized in that: die (2) removably connects by at least four second screws with die socket (3).
4. miniature turbine building mortion according to claim 1 and 2 is characterized in that: described electrical heating elements (5) is the resistance-type heating collar.
5. miniature turbine building mortion according to claim 1 and 2 is characterized in that: described temperature sensor (6) is a thermocouple temperature sensor.
6. miniature turbine building mortion according to claim 5 is characterized in that: described temperature controller 7 is the digital display adjusting apparatus.
7. utilize that the described building mortion of any one claim carries out the miniature turbine manufacturing process in the claim 1 to 6, it is characterized in that: described method is to realize according to following steps: one, adjust push rod (4), make the upper surface of push rod (4) concordant with the lower surface of grooving (2-1), then blank (9) is put into the grooving (2-1) of die (2), punch (1) is placed on the blank (9) in the grooving (2-1) of die (2); Two, connect electrical heating elements (5), die socket (3) is heated, die (2) is heated to 300 ℃～450 ℃; Three, when die (2) is heated to the predetermined temperature of step 2, under the effect of forcing press, apply the pressure of 2000N-10000N to punch (1), blank (9) produces plastic deformation under the mold pressing effect of punch 1, when blank (9) is filled with grooving (2-1) and blade groove (2-1-1), forcing press is out of service, blank (9) finishes at grooving (2-1) internal shaping, makes miniature turbine; Four, unload lower punch (1),, push rod (4) is moved up miniature turbine is ejected from grooving (2-1), obtain the miniature turbine finished product by screwing first screw (8).
8. miniature turbine manufacturing process according to claim 7 is characterized in that: the thickness of the blade of the miniature turbine finished product that makes through step 4 is 50～300um, and blades height is 0.5～1.0mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110141484 CN102240755B (en) | 2011-05-27 | 2011-05-27 | Device and method for moulding and forming micro-turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110141484 CN102240755B (en) | 2011-05-27 | 2011-05-27 | Device and method for moulding and forming micro-turbine |
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| CN102240755A true CN102240755A (en) | 2011-11-16 |
| CN102240755B CN102240755B (en) | 2013-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825165A (en) * | 2012-08-16 | 2012-12-19 | 南京理工大学 | Coining type plastic forming preparation method for miniature planar spring and preparation device for miniature planar spring |
| CN103600015A (en) * | 2013-12-05 | 2014-02-26 | 哈尔滨工业大学 | Device and method for manufacturing mould of mini-sized impeller with high height-thickness ratio |
| CN105215093A (en) * | 2015-11-10 | 2016-01-06 | 浙江兴益风机电器有限公司 | A kind of pawl equipment of draught fan impeller |
| CN106903247A (en) * | 2017-05-09 | 2017-06-30 | 哈尔滨工业大学（威海） | Miniature turbine disk building mortion and method |
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| GB751171A (en) * | 1953-06-09 | 1956-06-27 | Asea Ab | Improvements in fluid-cooled metal extrusion presses |
| CN1880052A (en) * | 2006-03-09 | 2006-12-20 | 张世忠 | Die pressing plastic and steel fan impeller production process and special mould |
| CN201249523Y (en) * | 2008-07-29 | 2009-06-03 | 王维东 | Mold for wholly molding glass fibre reinforced plastic centrifugal fan vanes |
| CN101793258A (en) * | 2010-01-22 | 2010-08-04 | 太仓市三耐化工设备有限公司 | Integrated thermoformed anticorrosion impeller |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB751171A (en) * | 1953-06-09 | 1956-06-27 | Asea Ab | Improvements in fluid-cooled metal extrusion presses |
| CN1880052A (en) * | 2006-03-09 | 2006-12-20 | 张世忠 | Die pressing plastic and steel fan impeller production process and special mould |
| CN201249523Y (en) * | 2008-07-29 | 2009-06-03 | 王维东 | Mold for wholly molding glass fibre reinforced plastic centrifugal fan vanes |
| CN101793258A (en) * | 2010-01-22 | 2010-08-04 | 太仓市三耐化工设备有限公司 | Integrated thermoformed anticorrosion impeller |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825165A (en) * | 2012-08-16 | 2012-12-19 | 南京理工大学 | Coining type plastic forming preparation method for miniature planar spring and preparation device for miniature planar spring |
| CN103600015A (en) * | 2013-12-05 | 2014-02-26 | 哈尔滨工业大学 | Device and method for manufacturing mould of mini-sized impeller with high height-thickness ratio |
| CN103600015B (en) * | 2013-12-05 | 2016-03-09 | 哈尔滨工业大学 | A kind of die device and method manufacturing large ratio of height to thickness micro impeller |
| CN105215093A (en) * | 2015-11-10 | 2016-01-06 | 浙江兴益风机电器有限公司 | A kind of pawl equipment of draught fan impeller |
| CN106903247A (en) * | 2017-05-09 | 2017-06-30 | 哈尔滨工业大学（威海） | Miniature turbine disk building mortion and method |
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