CN1083751C - Digital controlled boring radial feeding method and device thereof - Google Patents
Digital controlled boring radial feeding method and device thereof Download PDFInfo
- Publication number
- CN1083751C CN1083751C CN98112785A CN98112785A CN1083751C CN 1083751 C CN1083751 C CN 1083751C CN 98112785 A CN98112785 A CN 98112785A CN 98112785 A CN98112785 A CN 98112785A CN 1083751 C CN1083751 C CN 1083751C
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- boring
- boring bar
- computer
- bar
- magnetic field
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Abstract
The present invention relates to a digital control type boring radial feed method which is characterized in that a magnetostrictive material is arranged on a boring bar. The circumference of the magnetostrictive material is provided with a magnetic field which is controlled by a computer to change the length of the magnetostrictive material for controlling the radial feed and backlash quantity of the boring bar. A device is provided with an elastic joint connected with the boring bar on a main shaft of a boring mill; a magnetostrictive material bar is arranged on the joint; both ends of the joint are provided with permanent magnets, and the circumference is provided with a coil connected with a power amplifier which is connected with the computer. The present invention transfers electric control information to the boring bar, and realizes that a boring cutter rotating at a high speed is controlled in a non-contact mode to carry out flexible radial feed and backlash movement. The present invention can bore holes of different types.
Description
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 Jing Dushi, 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 on the elastomeric joint that boring bar is installed a magnetostriction materials rod to be set, magnetic field is set around this rod, the magnetostriction materials rod remains pressured state, by computer magnetic field is controlled magnetostriction materials rod length is changed with the control 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, fold up a 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 elastomeric joint set between boring spindle and boring bar one magnetostriction materials rod affected by magnetic fields is installed, 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 high-speed rotation of contactless control, 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.Its method is to make the magnetostriction materials rod remain pressured state in process, and its length 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 on the boring bar, realized that computer controls the purpose of the boring cutter bar forward and back cutter of rotation.
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, on elastomeric joint 3, fold up a magnetostriction materials rod 1, these magnetostriction materials 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 by the 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 1 can be done corresponding elongation vertically and shorten motion, this stretching motion makes elastomeric joint 3 produce distortion vertically, this deflection is by lever principle, make with boring bar 4 that elastomeric joint 3 links to each other on 5 pairs of elastomeric joints 3 of boring cutter radially produce again and be out of shape and amplify, make boring cutter 5 do radially forward and back cutter feed motion, thus but the dissimilar holes of boring.In entire work process, 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 elasticity Cu alloy material preferably, 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 the elastomeric joint that boring bar is installed, a magnetostriction materials rod being set, magnetic field is set around this rod, the magnetostriction materials rod remains pressured state, by computer magnetic field is controlled magnetostriction materials rod length is changed with the 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 the elastomeric joint that is connected with boring bar, fold up a 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 elastomeric joint is inclined to one side centroid shape.
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 CN1256991A (en) | 2000-06-21 |
| CN1083751C true CN1083751C (en) | 2002-05-01 |
Family
ID=5222588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98112785A Expired - Fee Related CN1083751C (en) | 1998-12-17 | 1998-12-17 | Digital controlled boring radial feeding method and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083751C (en) |
Families Citing this family (9)
| 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 |
| CN102145391B (en) * | 2011-04-04 | 2012-10-10 | 兰州理工大学 | Boring spindle device |
| 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 |
| CN109571110B (en) * | 2018-11-15 | 2021-01-12 | 中国兵器科学研究院宁波分院 | Micro-feeding device of piezoelectric ceramic matched lever mechanism for processing piston pin hole |
| 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 |
| CN111451546B (en) * | 2020-04-09 | 2021-09-14 | 山东大学 | Special-shaped hole boring device, machine tool and method |
| CN114147542B (en) * | 2021-12-07 | 2023-07-14 | 鹰普航空科技有限公司 | Machining method for solving problem of special-shaped structure of deep cavity of part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997026090A1 (en) * | 1996-01-17 | 1997-07-24 | Boart Longyear Technical Centre Limited | Magnetostrictive actuator |
| WO1998056015A1 (en) * | 1997-06-06 | 1998-12-10 | Etrema Products, Inc. | Magnetostrictive clamping device |
-
1998
- 1998-12-17 CN CN98112785A patent/CN1083751C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997026090A1 (en) * | 1996-01-17 | 1997-07-24 | Boart Longyear Technical Centre Limited | Magnetostrictive actuator |
| WO1998056015A1 (en) * | 1997-06-06 | 1998-12-10 | Etrema Products, Inc. | Magnetostrictive clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1256991A (en) | 2000-06-21 |
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