CN103753405A - Ultrasonic reinforced abrasive water jet machining device - Google Patents
Ultrasonic reinforced abrasive water jet machining device Download PDFInfo
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- CN103753405A CN103753405A CN201410016032.0A CN201410016032A CN103753405A CN 103753405 A CN103753405 A CN 103753405A CN 201410016032 A CN201410016032 A CN 201410016032A CN 103753405 A CN103753405 A CN 103753405A
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- abrasive water
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Abstract
The invention relates to the non-traditional machining technology, in particular to an ultrasonic reinforced abrasive water jet machining device which is applied to an abrasive water jet machining system. The ultrasonic reinforced abrasive water jet machining device consists of a variable-amplitude rod nozzle, a transducer, a pulse power supply, a lower installation tray, a bolt, an upper installation tray, an abrasive water jet pipeline connecting port and a vibrating isolation mechanism, wherein the transducer is installed on the variable-amplitude rod nozzle, the variable-amplitude rod nozzle is fixed on the lower installation tray, the lower installation tray and the upper installation tray are installed together through the bolt, and the upper installation tray is connected with the vibrating isolation mechanism and installed on a motion control part of the abrasive water jet machining system through the vibrating isolation mechanism. The original continuous jet flow is converted into the pulse jet flow, so that the influence on the machining process caused by a water cushion can be eliminated. By adopting the ultrasonic reinforced abrasive water jet machining device, the machining process is controllable, the jet flow machining capacity is enhanced, the removal efficiency of a workpiece material is improved, high efficiency in abrasive water jet machining is realized, and the popularization and application of the precise fine abrasive water jet machining process can be facilitated.
Description
One, technical field
The present invention relates to special processing technology, especially a kind of ultrasonically enhanced abrasive waterjet cutting device that is applied to abrasive waterjet cutting system.
Two, background of invention
Abrasive waterjet cutting is a new special beam process technology that results from the eighties in 20th century, because it has the advantages such as elaboration power is little, little to material heat affecting, machinable material scope is wide, over nearly 30 years, be developed rapidly, the application in Practical Project is increasingly extensive.In recent years, Abrasive Waterjet Machining Technology, microfabrication future development efficient to surface finish, micro etch, capillary processing etc., accurate by roughing such as initial cuttings.
Abrasive waterjet cutting system is mainly by system supercharging part, feed part, spraying system, motion control part and collect the compositions such as filtration system.Wherein system supercharging part major function is to provide higher energy for abrasive waterjet cutting.The abrasive material providing with feeding device after water supercharging is mixed, form abrasive water-jet.Then after the pressure energy of jet being converted into by spraying system to the kinetic energy of abrasive material and water, impact workpiece, mainly rely on the erosion of abrasive material to reach the object of removing material.Because the removal of material need to consume a large amount of energy, so need the power of pressure charging system also larger.Due to the enhancing of system pressure, make jet transfer element also will bear higher pressure, because need to there is very high intensity and wear-resistant ability simultaneously.Abrasive water-jet from nozzle ejection to surface of the work on, due to the mobile continuity of water jet, can form thicker water cushion at surface of the work, the existence of this water cushion has reduced the efficiency of jet beam processing work.Particularly in Precision Machining process, can affect the working ability of jet beam, and then can affect machining accuracy.
At present, in efficient, accurate, fine abrasive water jet system of processing, there is following shortcoming:
1) system pressure is larger, because need pump motor power large;
2) existence due to water cushion makes working (machining) efficiency lower, and machining accuracy is not high;
3) higher system pressure proposes very high requirement to the conveying element of water and control element, thereby has influence on processing cost efficient, precise fine abrasive water jet system of processing.
Three, summary of the invention
The pressure charging system consumed power that the object of the invention is to overcome existing abrasive waterjet cutting system is large, has the defects such as water cushion in processing, and a kind of ultrasonically enhanced abrasive waterjet cutting device is provided.
The present invention is arranged on abrasive waterjet cutting system, its basic conception is by ultrasonic transformer nozzle, transducer, the pulse power, lower mounting disc, bolt, upper mounting disc, abrasive water-jet pipe interface, vibration isolation mechanism forms, transducer is arranged on ultrasonic transformer nozzle, ultrasonic transformer nozzle is fixed in lower mounting disc, upper mounting disc and lower mounting disc have the connecting hole of Corresponding matching, with bolt, lower mounting disc and upper terminal pad are installed together, upper mounting disc is connected with vibration isolation mechanism, and by vibration isolation mechanism, be arranged on the motion control part of abrasive waterjet cutting system.Vibration isolation mechanism consists of installation base plate, damping spring, central spindle of the spring, with central spindle of the spring, damping spring is arranged on installation base plate, and spring core the tip of the axis is connected with upper mounting disc; Central spindle of the spring be one end with boss, the screwed connector of the other end; Damping spring is leaf spring or helical spring.
Operation principle: provide pulse electrical signal by the pulse power, transducer is converted into mechanical movement by pulse electrical signal, by ultrasonic transformer nozzle, vibration displacement is amplified, ultrasonic energy is concentrated on to the fluid in ultrasonic amplitude of fluctuation boom jet nozzle, fluid is mass flowing nozzle under the double action of ultrasonic vibrational energy and pressure energy, vibrational energy will produce disturbance and form pulsing jet solid jet, pulsing jet adds man-hour, discontinuity due to jet beam, jet in the intermittent time on surface of the work the water of the last period can before the water slug of latter a section, flow out, thereby eliminated water cushion, reduced the energy consumption of water cushion to jet beam, take full advantage of the energy of jet beam, improved the working (machining) efficiency of abrasive water-jet.And, can realize the ACTIVE CONTROL of pulsing jet flow regime by the nowed forming of regulating impulse vibration frequency and amplitude control impuls jet, to improve abrasive waterjet cutting efficiency and machining accuracy.
The present invention can obtain following useful effect in actual applications:
1, after ultrasonic vibrational energy is applied in water jet, original solid jet is converted into pulsing jet, thereby has eliminated the impact of water cushion on process.
2, because vibrational energy can come regulation output power and vibration parameters by regulating impulse power supply etc., thereby make the pulsation effect of jet become controlled, also just make process become controlled.
3, the stack of the pressure energy by ultrasonic energy and abrasive water-jet, has strengthened the working ability of jet, has improved the removal efficiency of workpiece material, thereby has made abrasive waterjet cutting become more efficient.Be conducive to applying of precise fine abrasive water jet processing technology.
Four, accompanying drawing explanation
Fig. 1 is the front view of structural representation of the present invention;
Fig. 2 is the top view of structural representation of the present invention;
Fig. 3 is the side view view of structural representation of the present invention.
Reference numeral;
1-1, ultrasonic transformer nozzle 1-2 transducer 1-3, pulse power 1-4, lower mounting disc 1-5, bolt 1-6, upper mounting disc 1-7, abrasive water-jet pipe interface 2-1, installation base plate 2-1-1, connecting hole 2-2, damping spring 2-3, central spindle of the spring 2-4, nut
Five, the specific embodiment
Describe by reference to the accompanying drawings implementation process of the present invention in detail, as Fig. 1, Fig. 2, shown in Fig. 3: the present invention is by ultrasonic transformer nozzle 1-1, transducer 1-2, pulse power 1-3, lower mounting disc 1-4, bolt 1-5, upper mounting disc 1-6, vibration isolation mechanism forms, transducer 1-2 is arranged on ultrasonic transformer nozzle 1-1, ultrasonic transformer nozzle 1-1 is fixed on lower mounting disc 1-4, upper mounting disc 1-6 and lower mounting disc 1-4 have the connecting hole of Corresponding matching, with bolt 1-5, lower mounting disc 1-4 and upper terminal pad 1-6 are installed together, upper mounting disc 1-4 is connected with vibration isolation mechanism, and by vibration isolation mechanism, be arranged on the motion control part of abrasive waterjet cutting system.Vibration isolation mechanism consists of installation base plate 2-1, damping spring 2-2, central spindle of the spring 2-3, central spindle of the spring 2-3 is that one end is with boss, the screwed connector of the other end, with central spindle of the spring 2-3, pass damping spring 2-2 and installation base plate 2-1, with nut pretension, damping spring 2-2 is arranged on to installation base plate 2-1 upper, at the end of central spindle of the spring 2-3, with nut, upper mounting disc 1-6 is connected and fixed; Damping spring 2-2 is leaf spring or helical spring.Transducer 1-2 is connected with pulse power 1-3, the installation base plate 2-1 of vibration isolation mechanism is arranged on the motion control part of abrasive waterjet cutting system with screw by connecting hole 2-1-1, ultrasonic transformer nozzle 1-1 is connected with the spraying system of abrasive waterjet cutting system by abrasive water-jet pipe interface 1-7.During work, the vibration of ultrasonic transformer nozzle 1-1 is isolated Vibrant buffer by damping spring 2-2, has improved machining accuracy.
Enforcement running of the present invention: the present invention is applied in precise fine abrasive water jet system of processing that (operating) water nozzle diameter is 0.1mm, ultrasonic transformer nozzle 1-1, adopt half-wavelength circular cone band cellular type ultrasonic transformer, material adopts titanium alloy, abrasive water-jet flows into by abrasive water-jet pipe interface 1-7, in the cavity of ultrasonic transformer nozzle 1-1, flow, in abrasive water-jet flow process, superpose with ultrasonic vibratory energy, increased the entrained gross energy of abrasive water-jet, then abrasive water-jet flows out ultrasonic transformer nozzle 1-1 and impacts workpiece, eliminated the impact of water cushion on process, improved abrasive waterjet cutting ability.Pulse power power is 1Kw, and operating frequency is 20KHz, and Oscillation Amplitude is 20 μ m, and water jet system pressure is 10MPa, the SiC that abrasive material is 1500#.After power connection, pulse power 1-3 produces electric oscillation signal, the sonic oscillation signal of telecommunication is converted into mechanical oscillation signal by transducer 1-2 by the signal of telecommunication and extends and shorten motion, and transducer 1-2 passes to vibration signal on connected ultrasonic transformer nozzle 1-1, ultrasonic transformer nozzle 1-1 amplifies vibration signal, at ultrasonic transformer nozzle 1-1 end, reaches amplitude maximum; When abrasive water-jet enters after ultrasonic transformer nozzle 1-1 by abrasive water-jet pipe interface 1-7, original solid jet is become to pulsed jet, make ultrasonic energy and abrasive water jet stream energy superimposed to improve abrasive waterjet cutting ability, under this condition, eliminated water cushion.Precise fine abrasive water jet system of processing can be carried out precise fine erosion processing to hard brittle materials such as glass, engineering ceramics, has improved the clearance of material, has improved abrasive waterjet cutting surface quality, thereby has improved working (machining) efficiency.Due to ultrasonic transformer nozzle 1-1, by being arranged on the damping spring 2-2 on the installation base plate 2-1 of vibration isolating device, be connected to the motion control part in precise fine abrasive water jet system of processing, the mechanical oscillation of ultrasonic transformer nozzle 1-1 are isolated by damping spring 2-2, avoid the impact of shower nozzle vibration on shower nozzle running precision, improved the reliability of precise fine abrasive water jet process technology.
Claims (4)
1. a ultrasonically enhanced abrasive waterjet cutting device, be arranged on abrasive waterjet cutting system, it is characterized by by ultrasonic transformer nozzle, transducer, the pulse power, lower mounting disc, bolt, upper mounting disc, abrasive water-jet pipe interface, vibration isolation mechanism forms, transducer is arranged on ultrasonic transformer nozzle, ultrasonic transformer nozzle is fixed in lower mounting disc, upper mounting disc and lower mounting disc have the connecting hole of Corresponding matching, with bolt, lower mounting disc and upper terminal pad are installed together, upper mounting disc is connected with vibration isolation mechanism, and by vibration isolation mechanism, be arranged on the motion control part of abrasive waterjet cutting system.
2. a kind of ultrasonically enhanced abrasive waterjet cutting device according to claim 1, it is characterized by described vibration isolation mechanism consists of installation base plate, damping spring, central spindle of the spring, with central spindle of the spring, damping spring is arranged on installation base plate, spring core the tip of the axis is connected with upper mounting disc.
3. a kind of ultrasonically enhanced abrasive waterjet cutting device according to claim 2, is characterized by described central spindle of the spring and is one end with boss, the screwed connector of the other end.
4. a kind of ultrasonically enhanced abrasive waterjet cutting device according to claim 2, it is characterized by described damping spring is leaf spring or helical spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410016032.0A CN103753405A (en) | 2014-01-14 | 2014-01-14 | Ultrasonic reinforced abrasive water jet machining device |
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| CN201410016032.0A CN103753405A (en) | 2014-01-14 | 2014-01-14 | Ultrasonic reinforced abrasive water jet machining device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999379A (en) * | 2015-07-23 | 2015-10-28 | 长春理工大学 | Abrasive flow micropore polishing device |
| CN105058247A (en) * | 2015-07-03 | 2015-11-18 | 山东大学 | Ultrasonic torsional vibration workbench specially used for fine abrasive water jet machining |
| CN106002521A (en) * | 2016-07-19 | 2016-10-12 | 苏州誉衡昌精密机械有限公司 | Automatic polishing wheel mechanism |
| CN110480512A (en) * | 2019-07-25 | 2019-11-22 | 浙江工业大学 | Ultrasonic vibration assists microchannel jet stream processing unit (plant) |
| CN112285208A (en) * | 2020-11-04 | 2021-01-29 | 郑州铁路职业技术学院 | Railway track flaw detection device and flaw detection method thereof |
| CN114033413A (en) * | 2021-11-09 | 2022-02-11 | 中铁工程装备集团有限公司 | Ultrasonic-assisted high-pressure water jet mixed abrasive nozzle and heading machine |
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2014
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| JPH11138442A (en) * | 1997-10-31 | 1999-05-25 | Sintokogio Ltd | Mixing device of gas and liquid |
| CN1799768A (en) * | 2005-12-22 | 2006-07-12 | 厉国苗 | Method for engraving cinerary casket by supersonic wave |
| CN1962137A (en) * | 2006-11-27 | 2007-05-16 | 华南理工大学 | Ultrasonic vibration cutting device used for lathe |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058247A (en) * | 2015-07-03 | 2015-11-18 | 山东大学 | Ultrasonic torsional vibration workbench specially used for fine abrasive water jet machining |
| CN104999379A (en) * | 2015-07-23 | 2015-10-28 | 长春理工大学 | Abrasive flow micropore polishing device |
| CN104999379B (en) * | 2015-07-23 | 2017-09-05 | 长春理工大学 | A kind of abrasive Flow micropore polishing processing device |
| CN106002521A (en) * | 2016-07-19 | 2016-10-12 | 苏州誉衡昌精密机械有限公司 | Automatic polishing wheel mechanism |
| CN110480512A (en) * | 2019-07-25 | 2019-11-22 | 浙江工业大学 | Ultrasonic vibration assists microchannel jet stream processing unit (plant) |
| CN112285208A (en) * | 2020-11-04 | 2021-01-29 | 郑州铁路职业技术学院 | Railway track flaw detection device and flaw detection method thereof |
| CN114033413A (en) * | 2021-11-09 | 2022-02-11 | 中铁工程装备集团有限公司 | Ultrasonic-assisted high-pressure water jet mixed abrasive nozzle and heading machine |
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Application publication date: 20140430 |
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