CN1256991A - Digital controlled boring radial feeding method and device thereof - Google Patents

Digital controlled boring radial feeding method and device thereof Download PDF

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Publication number
CN1256991A
CN1256991A CN 98112785 CN98112785A CN1256991A CN 1256991 A CN1256991 A CN 1256991A CN 98112785 CN98112785 CN 98112785 CN 98112785 A CN98112785 A CN 98112785A CN 1256991 A CN1256991 A CN 1256991A
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CN
China
Prior art keywords
boring
boring bar
magnetic field
computer
magnetostriction materials
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CN 98112785
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Chinese (zh)
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CN1083751C (en
Inventor
崔红娟
杨舜州
陈志华
张秀斌
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National University of Defense Technology
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National University of Defense Technology
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Priority to CN98112785A priority Critical patent/CN1083751C/en
Publication of CN1256991A publication Critical patent/CN1256991A/en
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Publication of CN1083751C publication Critical patent/CN1083751C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Anumerically-controlled boring-cutting radial feeding method is characterized by that its boring bar is equipped with magnetostrictive material around which the magnetic field is set, then the magnetic field can be controlled by computer to control the change of magnetostrictive material length so as to control amount of radial tool feed and backlash movement of the boring bar. Said equipment is characterized by that the main shaft of said boring mill is equipped with an elastic joint connected with boring bar, said flexible connector is equipped with magnetostrictive material rod, its both ends are equipped with pemanent magnets, and around them a coil is set, and connected with power amplifier, and the power amplifier is connected with computer. Said invention can transfer the electric control signal to boring bar to implement non-contact control of radial flexible tool feed and backlash movement of high-speed rotating boring-cutter.

Description

Digital controlled boring radial tool feeding method and device
The present invention relates to control when a kind of boring is processed the method for boring cutter forward and back cutter amount, be specifically related to a kind of digital controlled boring radial tool feeding method and device thereof.
The piezoelectric ceramic electric control formula that same category of device in using in industry at present has mechanical profiling type and is in conceptual phase is feed arrangement radially, and the former whole transmission from the pattern to the boring bar all is to be finished by frame for movement, so precision is low, and frequency response is low, flexibility is poor; Though latter's flexibility and frequency response can meet the demands, but computer control signal to be passed to the boring bar of rotation at a high speed, and the conduction of the signal of telecommunication is difficult to realize in actual engineering, therefore, up to the present never have the product of practicability, especially when some irregularly-shaped hole of processing, machining accuracy is difficult to guarantee.
The objective of the invention is to overcome the defective of above-mentioned prior art, provide a kind of digital controlled boring that automatically controlled information can be passed to boring bar to process tool feeding method radially and according to the device of this method design.
The objective of the invention is to realize by following technical scheme.Its method is to establish magnetostriction materials on boring bar, and magnetic field is set around the magnetostriction materials, changes magnetostriction materials length by the magnetic field size of computerizeing control and controls boring bar in its forward and back cutter amount radially.Apparatus of the present invention comprise boring bar, boring cutter, boring spindle, it is characterized in that on boring spindle, establishing an elastomeric joint that is connected with boring bar, establish the magnetostriction materials rod on this joint, permanent magnet is established at two ends, be provided with the coil that joins with power amplifier on every side, power amplifier is connected with computer, controls boring bar at its forward and back cutter radially by the invisible magnetic field of computer control, realize the conduction of automatically controlled information, thereby realized purpose of the present invention.
The present invention can design the principle of magnetostriction materials generation effect according to magnetic field, by a magnetostriction materials rod affected by magnetic fields is installed on elastomeric joint set between boring spindle and the boring bar, the variation of its elongation changes boring bar, and magnetic field is controlled with computer, computer is conducted signal to boring bar become possibility, realized the radially forward and back cutter motion flexibly of boring cutter do in the rotation of contactless control high speed, thereby precision height, frequency response height and flexible good have been reached, the purpose in the various dissimilar holes of boring.The present invention is simple in structure, realizes having application market widely easily.
Description of drawings:
Fig. 1 is apparatus of the present invention structural representation.
Among the figure:
1-magnetostriction materials rod 2-permanent magnet 3-elastomeric joint 4-boring bar
5-boring cutter 6-coil 7-computer 8-power amplifier 9-boring spindle
The invention will be further described below in conjunction with accompanying drawing.
The present invention designs according to the characteristic that magnetostriction materials itself are possessed, and the length of magnetostriction materials is extended with the increase of its place magnetic field intensity, and the reduction of magnetic field intensity and shortening is irrelevant with magnetic direction; And the size in magnetic field can be controlled with computer, be about in the required boring hole shape parameter input computer, and convert thereof into the signal of telecommunication magnetic field is controlled, make the variation in magnetic field cause the variation of magnetostriction materials length, and this variation is converted into again the variation of boring bar by certain structure, thereby brought the variation of boring cutter forward and back cutter on the boring bar, realized controlling the purpose of the boring cutter bar forward and back cutter of rotation with computer.
The present invention's device designs according to above-mentioned principle, as shown in Figure 1, the present invention includes boring bar 4, boring cutter 5, boring spindle 9, computer 7, one elastomeric joint 3 is set between boring bar 4 and boring spindle 9, fixing boring cutter 5 on the boring bar 4, the end-grain cutting that elastomeric joint 3 is connected with boring bar 4 is whittled into arc, to strengthen this joint elastic, one magnetostriction materials rod 1 is set on elastomeric joint 3, these magnetostriction materials rod 1 two ends are provided with permanent magnet 2, apply for magnetostriction materials rod 1 and preload and pre-elongation, guarantee 1 eternal compression chord of magnetostriction materials rod; Around magnetostriction materials rod 1 and permanent magnet 2, be provided with coil 6, this coil and power amplifier 8 join, power amplifier 8 joins with computer 7 again, accept its signal, calculate the form parameter that needs machining hole by computer 7, and logical D/A digital-to-analogue conversion, the light current that becomes the boring cutter forward and back is pressed signal, this signal is given power amplifier 8, power amplifier 8 amplifies signal and convert electric current to again delivers to coil 6, coil 6 just generates corresponding magnetic field according to the size and the direction of electric current, after the magnetic field superposition that this magnetic field and permanent magnet 2 produces to the 1 generation effect of magnetostriction materials rod.When applying positive current for coil 6, the stack result of permanent-magnetic field and coil magnetic field increases magnetic field intensity, and magnetostriction materials rod 1 extends thereupon; When applying negative current for coil 6, the stack result of permanent-magnetic field and coil magnetic field reduces magnetic field intensity, magnetostriction materials rod 1 shortens thereupon, be that magnetostriction materials rod 1 can be done corresponding elongation vertically and shorten motion, this stretching motion makes elastomeric joint 3 produce distortion, and by lever principle, the distortion of the 4 pairs of elastomeric joints 3 of boring bar that link to each other with elastomeric joint 3 is amplified and break-in, make boring cutter 5 do radially forward and back cutter feed motion, thus but the dissimilar holes of boring.In entire work process, permanent magnet 2, coil 6, computer 7, power amplifier 8 transfixions, remainder and the rotation of boring spindle 9 one superhigh speeds.
For eliminating of the influence of backlash journey to boring bar 4 forward and back cuttves, the present invention is designed to inclined to one side centroid shape with elastomeric joint 3, when the high speed boring, guarantee that the centrifugal force direction that boring spindle 9 rotations produce inclined to one side barycenter elastomeric joint 3 makes magnetostriction materials rod 1 compression chord all the time.
In the present invention, elastomeric joint 3 can adopt the Cu alloy material of good springiness, and control computer 7 is selected 486 Industrial Control Computers for use, can be widely used in processing dissimilar holes, and is especially suitable to boring engine piston noncircular pin hole.

Claims (3)

1, a kind of digital controlled boring radial tool feeding method, it is characterized in that on boring bar, establishing magnetostriction materials, magnetic field is set around the magnetostriction materials, by computer magnetic field is controlled and magnetostriction materials length is changed control boring bar in its forward and back cutter amount radially.
2, a kind of digital controlled boring radial feed arrangement as claimed in claim 1, it comprises boring bar, boring cutter, boring spindle, computer, it is characterized in that on boring spindle, establishing an elastomeric joint that is connected with boring bar, establish the magnetostriction materials rod on this joint, permanent magnet is established at two ends, be provided with the coil that joins with power amplifier on every side, power amplifier is connected with computer.
3, digital controlled boring radial feed arrangement according to claim 2 is characterized in that boring bar is inclined to one side barycenter boring bar.
CN98112785A 1998-12-17 1998-12-17 Digital controlled boring radial feeding method and device thereof Expired - Fee Related CN1083751C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN98112785A CN1083751C (en) 1998-12-17 1998-12-17 Digital controlled boring radial feeding method and device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN98112785A CN1083751C (en) 1998-12-17 1998-12-17 Digital controlled boring radial feeding method and device thereof

Publications (2)

Publication Number Publication Date
CN1256991A true CN1256991A (en) 2000-06-21
CN1083751C CN1083751C (en) 2002-05-01

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CN98112785A Expired - Fee Related CN1083751C (en) 1998-12-17 1998-12-17 Digital controlled boring radial feeding method and device thereof

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CN (1) CN1083751C (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1298470C (en) * 2005-09-22 2007-02-07 山东大学 Boring mill for working special-shaped curved hole
CN101412119B (en) * 2008-11-26 2010-06-02 王春阳 Automatically controlled feed gear of machine tool
CN102145391A (en) * 2011-04-04 2011-08-10 兰州理工大学 Boring spindle device
CN102274989A (en) * 2011-07-08 2011-12-14 浙江大学 Boring bar device based on driving of giant magnetostriction material
CN104015084A (en) * 2014-05-14 2014-09-03 杨斌堂 Device for flat rotation machining and extension test
CN109382700A (en) * 2018-11-30 2019-02-26 杭州电子科技大学 Rigidity adaptive fast tool servo and method based on magnetorheological body
CN109571110A (en) * 2018-11-15 2019-04-05 中国兵器科学研究院宁波分院 A kind of micro-feeding device of the piezoelectric ceramics cooperation lever mechanism for piston pin hole processing
CN111451546A (en) * 2020-04-09 2020-07-28 山东大学 Special-shaped hole boring device, machine tool and method
CN114147542A (en) * 2021-12-07 2022-03-08 鹰普航空科技有限公司 Machining method for solving deep cavity special-shaped structure of part

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9600921D0 (en) * 1996-01-17 1996-03-20 Boart Longyear Technical Centr Magnetostrictive actuator
US5907269A (en) * 1997-06-06 1999-05-25 Etrema Products, Inc. Magnetostrictive clamping device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1298470C (en) * 2005-09-22 2007-02-07 山东大学 Boring mill for working special-shaped curved hole
CN101412119B (en) * 2008-11-26 2010-06-02 王春阳 Automatically controlled feed gear of machine tool
CN102145391A (en) * 2011-04-04 2011-08-10 兰州理工大学 Boring spindle device
CN102145391B (en) * 2011-04-04 2012-10-10 兰州理工大学 Boring spindle device
CN102274989A (en) * 2011-07-08 2011-12-14 浙江大学 Boring bar device based on driving of giant magnetostriction material
CN102274989B (en) * 2011-07-08 2012-11-07 浙江大学 Boring bar device based on driving of giant magnetostriction material
CN104015084A (en) * 2014-05-14 2014-09-03 杨斌堂 Device for flat rotation machining and extension test
CN109571110A (en) * 2018-11-15 2019-04-05 中国兵器科学研究院宁波分院 A kind of micro-feeding device of the piezoelectric ceramics cooperation lever mechanism for piston pin hole processing
CN109382700A (en) * 2018-11-30 2019-02-26 杭州电子科技大学 Rigidity adaptive fast tool servo and method based on magnetorheological body
CN109382700B (en) * 2018-11-30 2024-04-05 杭州电子科技大学 Rigidity self-adaptive quick cutter servo device and method based on magnetorheological elastomer
CN111451546A (en) * 2020-04-09 2020-07-28 山东大学 Special-shaped hole boring device, machine tool and method
CN111451546B (en) * 2020-04-09 2021-09-14 山东大学 Special-shaped hole boring device, machine tool and method
CN114147542A (en) * 2021-12-07 2022-03-08 鹰普航空科技有限公司 Machining method for solving deep cavity special-shaped structure of part

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