CN103182552A - Deep hole processing online detection and correction device - Google Patents
Deep hole processing online detection and correction device Download PDFInfo
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- CN103182552A CN103182552A CN2013100977765A CN201310097776A CN103182552A CN 103182552 A CN103182552 A CN 103182552A CN 2013100977765 A CN2013100977765 A CN 2013100977765A CN 201310097776 A CN201310097776 A CN 201310097776A CN 103182552 A CN103182552 A CN 103182552A
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Abstract
The invention discloses a deep hole processing online detection and correction device. The deep hole processing online detection and correction device is characterized in that an inspection hole is formed between a chip removal hole of a drill rod and an outer circle, an internal fixation frame provided with an internal laser source and a position-sensitive detector is arranged at corresponding positions on a drill bit and the inner end of the inspection hole, an external fixation frame provided with an external laser source and an angle-sensitive detector is arranged on the outer end of the inspection hole of the drill rod, the angle-sensitive detector corresponds to the internal laser source, and the position-sensitive detector corresponds to the external laser source; and radial expansion pieces are distributed along the circumferential direction of the drill bit, and axial expansion pieces are arranged while avoiding a circular groove space of the internal fixation frame between the drill bit and the drill rod. According to the deep hole processing online detection and correction device, the internal laser source and the external laser source transmit laser, positions and angles of the drill bit in a machining process are detected online, and the positions and angles of the drill bit are adjusted by virtual of a radial expansion piece and an axial expansion piece, so that the problems that drilling deflection can not be observed and correction can not be timely carried out are solved.
Description
Technical field
The invention belongs to the deep hole machining technical field, be specifically related to the online detection of a kind of deep hole machining and deviation correcting device.
Background technology
Deep hole machining is complicated and special, be difficult to observe working position and cutter situation, process is subjected to the influence such as many-sided factors such as knife bar distortion, system's flutter, workpiece material, bit parameter, cutting parameter, oil liquid pressure, chip removal difficulties, the phenomenon of axis deviation often appears in the deep hole part, in case deflect into to a certain degree, the straightness error of deep hole axis of workpiece will produce sharply and change, drill bit in addition in the middle of the workpiece " level " get out adverse consequences such as cause drill bit to damage, workpiece is scrapped, the product precision is low, off quality.Because deep hole machining is served equipment manufacture industry, the quality of deep hole workpiece directly influences the development of equipment manufacture, has also limited the space of deep hole to the other field expansion.
Gun drilling axially bored line deflection problem is a technical barrier that exists at present, both at home and abroad the research of gun drilling axially bored line deflection problem is constantly deepened at present, but other metering projects relatively, the linearity detection technique seems backward, especially show greatly enhancing workpiece hole axis verticality context of detection, up to the present, still be not used in the matured product that detects deep hole axis verticality deviation.In the reality, the master worker is often by judging the linearity quality with slide calliper rule in the method for the two ends in hole along Different Diameter to the orientation measurement wall thickness, this method can not record the inner misalignment of axe of deep hole, also namely can not realize the omnidistance detection of dynamic continuously to deep hole part straight-line degree, very not accurate, the mistaken ideas that are absorbed in putting general face easily.Therefore develop the online detection of a kind of suitable deep hole machining and deviation correcting device seems particularly important.
Summary of the invention
Purpose of the present invention is intended to overcome above-mentioned shortcoming, and a difficult problem such as can't in time rectify a deviation after solving the deflection that is difficult to observe cutter in the existing deep hole machining process and deflection occurring provides the online detection of a kind of deep hole machining and deviation correcting device.
For achieving the above object, the present invention adopts following technical scheme: the online detection of a kind of deep hole machining and deviation correcting device, comprise drill bit, drilling rod, drill bit is fixed on the drilling rod by its thread segment, be provided with oil scraper ring between drill bit and the drilling rod, oil scraper ring is arranged near the drilling-rod external wall place, drilling rod is fixed on the feed box, the centre of drilling rod has chip-removal hole, it is characterized in that: between drilling rod chip-removal hole and cylindrical, have and detect the hole, on drill bit, drilling rod detects inner corresponding position, hole inner fixed stand is set, inner laser source and Position-Sensitive Detector are set on the inner fixed stand, the outer end of detecting the hole at drilling rod arranges external fixing rack, external fixing rack is fixed on the lathe, outer lasing light emitter and angular-sensitive detector are set on the external fixing rack, and angular-sensitive detector installation site emits beam corresponding to the inner laser source in the scope, and the Position-Sensitive Detector installation site emits beam corresponding to outer lasing light emitter in the scope; Along the drill bit radial expansion device that circumferentially distributes, avoid the annular groove space of inner fixed stand between drill bit and drilling rod the axial stretching device is set.
The online detection of above-mentioned deep hole machining and deviation correcting device is characterized in that: the diameter of described drill bit reduced diameter section is less than the diameter of oil scraper ring.
The online detection of above-mentioned deep hole machining and deviation correcting device, it is characterized in that: described radial expansion device is placed in the groove that the drill bit periphery has, groove is right-hand the drill bit guide pad, wear-resisting elastic packing piece sealing is adopted in radial expansion device top, radial expansion device and the initial total length of wear-resisting elastic packing piece are less than depth of groove, and energising elongation back contacts with the workpiece hole wall.
The online detection of above-mentioned deep hole machining and deviation correcting device is characterized in that: described radial expansion device adopts magnetostrictor or electrotriction tranducer, and it is more than 3 or 3 that quantity is set.
The online detection of above-mentioned deep hole machining and deviation correcting device is characterized in that: described axial stretching device is pressed close to the oil scraper ring placement, and an end is fixed on the drill bit with holder, and other end elongation back contacts with the drilling rod inner face.
The online detection of above-mentioned deep hole machining and deviation correcting device is characterized in that: described axial stretching device adopts magnetostrictor or electrotriction tranducer, and it is more than 3 or 3 that quantity is set.
Inner laser source among the present invention and outer lasing light emitter emission laser, taking full advantage of laser, to be radiated at Position-Sensitive Detector different with the position on the angular-sensitive detector, position and the angle of online detection drill bit in the deep hole machining process, be transferred to computer after by A/D converter signal being handled, computer is handled simultaneously data and is sent the certain high-voltage dc voltage of instruction output to driving power, radial expansion device and axial stretching device produce corresponding displacement according to the size of voltage, and then position and the drift angle of adjustment drill bit, realize online detection and the correction of hole processing with this.
Outer lasing light emitter and angular-sensitive detector are fixed in the external fixing rack, and external fixing rack is fixed on the lathe, maintains static.Be fixed on the light that the inner laser source of inner fixed stand sends and be radiated on the angular-sensitive detector in the hole after testing, analyze the angle of inclination of drill bit by Eulerian angles; The light that outer lasing light emitter sends is radiated on the Position-Sensitive Detector that is installed in inner fixed stand through detecting the hole equally.
In process, when drill bit during not in original correct position, hot spot on Position-Sensitive Detector and the angular-sensitive detector will change, A/D converter can be converted to data signal with variable quantity, computer is handled the data signal that receives, send the certain high-voltage dc voltage of instruction output to driving power, radial expansion device and axial stretching device produce corresponding displacement according to the size of voltage, and then position and the drift angle of adjustment drill bit, realize online detection and the correction of hole processing with this.
When bit location changes, the light that outer lasing light emitter the sends hole hot spot that is radiated at Position-Sensitive Detector after testing can change, be converted to data signal through A/D converter and pass to computer, computer receiving data is also handled the back and is sent instruction to driving power, output control signal according to computer, the certain high-voltage dc voltage of driving power output drives the radial expansion device and produces corresponding displacement, and then the position of adjustment drill bit is until recovering the tram.
When the drill bit angle changes, the light that send in the inner laser source hole hot spot that is radiated at the angular-sensitive detector after testing also can change, be converted to data signal through A/D converter and pass to computer, computer receiving data is also handled the back and is sent instruction to driving power, output control signal according to computer, the certain high-voltage dc voltage driving axial expansion bend of driving power output produces corresponding displacement, and then the angle of adjustment drill bit is until recovering the tram.
The present invention has following advantage:
The first, utilize two lasing light emitters and Lazer's sense detector, the position of online detection drill bit and angle change, and have solved the difficult problem that can't observe the drilling deflection.Second, the electrotriction tranducer or the magnetostrictor that adopt tool to have great prospects for development, volume is little, displacement resolution is high, response is fast, power output is big, can reach 4500N(with reference to University Of Tianjin's Master's thesis " design and research of ultra precision cutting micro-feeding platform "), can in time correct drill bit angle and position deviation.The 3rd, the reduced diameter section that drill bit adopts not only provides enough big installation and measuring and the annular groove space of correction device, the more important thing is that the existence of reduced diameter section makes the adjustment of drill bit angle become possibility.
Description of drawings
Fig. 1, structural representation of the present invention
Fig. 2, along the profile of A-A line among Fig. 1
Fig. 3, along the profile of B-B line among Fig. 1
Among the figure: the light 17-that the outer lasing light emitter of the light 16-that send in 14-Position-Sensitive Detector 15-inner laser source, 1-workpiece 2-drill bit 3-holder 4-axial stretching device 5-oil scraper ring 6-sealing ring 7-oil delivering unit 8-feed box 9-guide pad 10-radial expansion device 11-wear-resisting elastic packing piece 12-inner fixed stand 13-inner laser source sends detects the outer lasing light emitter 21-external fixing rack 22-drilling rod of hole 18-chip-removal hole 19-angular-sensitive detector 20-
The specific embodiment
By reference to the accompanying drawings the specific embodiment of the present invention is further described, present embodiment is to illustrate of the present inventionly, rather than the present invention is done any restriction.
As shown in Figure 1, the present invention includes drill bit 2, drilling rod 22, holder 3, axial stretching device 4, oil scraper ring 5, sealing ring 6, oil delivering unit 7, feed box 8, radial expansion device 10, wear-resisting elastic packing piece 11, inner fixed stand 12, inner laser source 13, outer lasing light emitter 20, Position-Sensitive Detector 14, angular-sensitive detector 19 etc.
Drill bit 2 is fixed in drilling rod 22 by its thread segment, and drilling rod 22 is fixed on the feed box 8, only does feed motion.Oil delivering unit 7 is for deep hole machining provides hydraulic oil, and oil is gone into from the orifice flow of oil delivering unit 7, and discharge iron filings from chip-removal hole 18 in the gap between the gap of process drilling rod 22 and workpiece 1 and the blade of drill bit 2.
Outer lasing light emitter 20 and angular-sensitive detector 19 are fixedly installed in the external fixing rack 21, and external fixing rack 21 is fixed on the lathe, maintain static behind adjustment inner laser source 13 and angular-sensitive detector 19 positions.Inner laser source 13 and Position-Sensitive Detector 14 are fixed in the inner fixed stand 12, and inner fixed stand 12 is fixed on the drill bit 2 by screw.
The light 16 that outer lasing light emitter 20 sends is parallel to drill bit 2 and drilling rod 22 initial axis, passes the detection hole 17 on the drilling rod 22, is radiated on the Position-Sensitive Detector 14, and for detection of bit location, the variation of bit location is with the form reflection of coordinate figure; The light 15 that send in inner laser source 13, the same detection hole of passing on the drilling rod 22 17 is radiated on the angular-sensitive detector 19, and for detection of the drill bit angle, the variation of drill bit angle is finally with the form reflection of angle.
When drill bit 2 positions change, the light 16 that outer lasing light emitter the sends hot spot that is radiated on the Position-Sensitive Detector 14 of hole 17 after testing can change, be converted to data signal through A/D converter and pass to computer, computer receiving data is also handled the back and is sent instruction to driving power, output control signal according to computer, the certain high-voltage dc voltage of driving power output drives radial expansion device 10 and produces corresponding displacement, and then the position of adjustment drill bit 2 is until recovering the tram; When drill bit 2 angles change, the light 15 that send in the inner laser source can change through the position that detection hole 17 is radiated at angular-sensitive detector 19, difference variation by hot spot converts data signal to by A/D converter, the computer receiving digital signals is also handled the back to driving power transmission instruction, export certain high-voltage dc voltage driving axial expansion bend 4 and produce corresponding displacement, adjust the angle of drill bit until recovering initial position.
Claims (6)
1. the online detection of deep hole machining and deviation correcting device, comprise drill bit, drilling rod, drill bit is fixed on the drilling rod by its thread segment, be provided with oil scraper ring between drill bit and the drilling rod, oil scraper ring is arranged near the drilling-rod external wall place, drilling rod is fixed on the feed box, the centre of drilling rod has chip-removal hole, it is characterized in that: between drilling rod chip-removal hole and cylindrical, have and detect the hole, on drill bit, drilling rod detects inner corresponding position, hole inner fixed stand is set, inner laser source and Position-Sensitive Detector are set on the inner fixed stand, the outer end of detecting the hole at drilling rod arranges external fixing rack, and external fixing rack is fixed on the lathe, and outer lasing light emitter and angular-sensitive detector are set on the external fixing rack, angular-sensitive detector installation site emits beam corresponding to the inner laser source in the scope, and the Position-Sensitive Detector installation site emits beam corresponding to outer lasing light emitter in the scope; Along the drill bit radial expansion device that circumferentially distributes, avoid the annular groove space of inner fixed stand between drill bit and drilling rod the axial stretching device is set.
2. the online detection of deep hole machining according to claim 1 and deviation correcting device, it is characterized in that: the diameter of described drill bit reduced diameter section is less than the diameter of oil scraper ring.
3. the online detection of deep hole machining according to claim 1 and deviation correcting device, it is characterized in that: described radial expansion device is placed in the groove that the drill bit periphery has, groove is right-hand the drill bit guide pad, wear-resisting elastic packing piece sealing is adopted in radial expansion device top, radial expansion device and the initial total length of wear-resisting elastic packing piece are less than depth of groove, and energising elongation back contacts with the workpiece hole wall.
4. according to claim 1 or the online detection of 3 described deep hole machining and deviation correcting device, it is characterized in that: described radial expansion device adopts magnetostrictor or electrotriction tranducer, and it is more than 3 or 3 that quantity is set.
5. the online detection of deep hole machining according to claim 1 and deviation correcting device is characterized in that: described axial stretching device is pressed close to oil scraper ring and is placed, and an end is fixed on the drill bit with holder, and other end elongation back contacts with the drilling rod inner face.
6. the online detection of deep hole machining and deviation correcting device according to claim 1 or 5, it is characterized in that: described axial stretching device adopts magnetostrictor or electrotriction tranducer, and it is more than 3 or 3 that quantity is set.
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| CN201310097776.5A CN103182552B (en) | 2013-03-25 | 2013-03-25 | Deep hole processing online detection and correction device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345094A (en) * | 2015-11-13 | 2016-02-24 | 中北大学 | Deep-hole machining online deviation rectifying device based on laser detection principle |
| CN105382632A (en) * | 2015-11-13 | 2016-03-09 | 中北大学 | Online detection and correction device during rear-mounted deep hole machining |
| CN108788238A (en) * | 2018-08-02 | 2018-11-13 | 中北大学 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
| CN109332756A (en) * | 2018-11-28 | 2019-02-15 | 宜昌江峡船用机械有限责任公司 | Deep hole drilling apparatus and method |
| CN110231002A (en) * | 2019-06-20 | 2019-09-13 | 中北大学 | Horizontal hole detector |
| CN110231001A (en) * | 2019-06-20 | 2019-09-13 | 中北大学 | Optical aperture detection device |
| CN110744091A (en) * | 2019-11-02 | 2020-02-04 | 徐州华显凯星信息科技有限公司 | Hole position degree restorer based on reference hole |
| CN112247208A (en) * | 2020-09-16 | 2021-01-22 | 中车长春轨道客车股份有限公司 | Intelligent punching machine for line passing hole of motor train unit |
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| CN102632275A (en) * | 2012-04-17 | 2012-08-15 | 中北大学 | Online detection and correction system for laser-guided deep-hole drilling |
| CN102632274A (en) * | 2012-04-17 | 2012-08-15 | 中北大学 | Online detection and correction system for small-diameter deep-hole drilling laser guidance |
| CN102642040A (en) * | 2012-04-17 | 2012-08-22 | 中北大学 | Online detection and deviation-correcting system for deep hole drilling |
| CN203140845U (en) * | 2013-03-25 | 2013-08-21 | 中北大学 | Online detection and deviation rectification device for deep hole machining |
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Patent Citations (5)
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| JPH0326412A (en) * | 1989-06-24 | 1991-02-05 | Kyushu Toshiba Kikai Kk | Bend controlling method in deep hole drilling and tool and device used therefor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345094A (en) * | 2015-11-13 | 2016-02-24 | 中北大学 | Deep-hole machining online deviation rectifying device based on laser detection principle |
| CN105382632A (en) * | 2015-11-13 | 2016-03-09 | 中北大学 | Online detection and correction device during rear-mounted deep hole machining |
| CN105382632B (en) * | 2015-11-13 | 2018-03-23 | 中北大学 | Rear-mounted deep hole machining on-line checking and deviation correcting device |
| CN108788238A (en) * | 2018-08-02 | 2018-11-13 | 中北大学 | A kind of deep hole machining intelligent drilling rod system with Tilting Pad block |
| CN108788238B (en) * | 2018-08-02 | 2023-09-15 | 中北大学 | Deep hole processing intelligent drill rod system with radial tilting pad |
| CN109332756A (en) * | 2018-11-28 | 2019-02-15 | 宜昌江峡船用机械有限责任公司 | Deep hole drilling apparatus and method |
| CN109332756B (en) * | 2018-11-28 | 2023-11-28 | 宜昌江峡船用机械有限责任公司 | Deep hole machining device and method |
| CN110231002A (en) * | 2019-06-20 | 2019-09-13 | 中北大学 | Horizontal hole detector |
| CN110231001A (en) * | 2019-06-20 | 2019-09-13 | 中北大学 | Optical aperture detection device |
| CN110744091A (en) * | 2019-11-02 | 2020-02-04 | 徐州华显凯星信息科技有限公司 | Hole position degree restorer based on reference hole |
| CN112247208A (en) * | 2020-09-16 | 2021-01-22 | 中车长春轨道客车股份有限公司 | Intelligent punching machine for line passing hole of motor train unit |
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| CN103182552B (en) | 2015-05-20 |
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