CN107350808B - A kind of laser helical milling grinds hole set composite and method for drilling - Google Patents
A kind of laser helical milling grinds hole set composite and method for drilling Download PDFInfo
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- CN107350808B CN107350808B CN201710693785.9A CN201710693785A CN107350808B CN 107350808 B CN107350808 B CN 107350808B CN 201710693785 A CN201710693785 A CN 201710693785A CN 107350808 B CN107350808 B CN 107350808B
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- main shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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Abstract
A kind of laser helical milling grinds hole set composite and method for drilling, and drilling set composite includes the laser generator and high-speed electric main shaft being separately mounted in adjustment two eccentric orfices of axis；Adjustment axis passes through the needle bearing that its both ends is arranged in and angular contact bearing support is mounted in the eccentric orfice of revolution main shaft；Revolution main shaft is mounted in rack sleeve, and connects revoluting motor by belt wheel, and rack sleeve drives entire axis system to complete axial feed in feeding sliding sleeve, and feeding sliding sleeve is mounted in feeding pedestal；Adjustment axis and revolution spindle nose are provided with electromagnetic brake and torque motor.Electromagnetic brake first locks adjustment axis and revolution main shaft, revoluting motor passes through band wheel drive revolution main shaft revolution, high-speed electric main shaft band rotary bistrique high speed rotation carries out grinding to hole wall, and feeding motor completes the spiral milling amendment in machined hole by lead screw driving spindle sleeve axial feed.Drilling precision of the present invention is high, can be improved drilling efficiency, reduces processing cost.
Description
Technical field
The invention belongs to composite processing fields, and in particular to a kind of laser helical milling grinds hole set composite and drilling
Method.
Background technique
For the actual demand for meeting China's Aeronautics and Astronautics cause, a large amount of advanced composite material (ACM) is in Aeronautics and Astronautics device at present
In shared ratio it is higher and higher, typically there is carbon fibre composite, glass fibre reinforced composion, quartz ceramic-base to increase
Strong type composite material.The advantages of above material is high hardness, corrosion-resistant, high temperature resistant, intensity is high, quality is small, but band at the same time
It is poor using the equipment machinability of the above material that next, which is problem,.Especially easily go out during the drilling of difficult-to-machine material
Now the problems such as layering, burr, decomposition and spike protein gene, it is difficult to solve problem above using traditional drilling technique.
Various aircraft need to process in assembling process the high quality pilot hole of various different sizes, assemble hole machined matter
The height of amount directly affects the service life of Aeronautics and Astronautics device.It is for difficult processing that laser punching and helical milling at present, which grinds hole,
The processing of different pore size may be implemented in the Novel perforation technique that material proposes, the laser cutting by can adjust radius, but adds
The defects of easily there is taper hole in the hole of work, hole wall is burnt, but the burr control effect of the import in composite material hole, outlet port
Good, the precision that helical milling grinds hole is high, but outlet, entrance easily form burr, intermediate fiber tomography easily occurs.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, providing a kind of laser helical milling, to grind hole compound
Device and method for drilling, the advantages of grinding hole in conjunction with laser punching and helical milling, the shortcomings that both avoiding, utilization is high-speed rotating
Bistrique is further corrected and is cut to the hole wall after laser cutting, the common processing for completing difficult machining composite material hole.
To achieve the goals above, it includes being separately mounted to adjustment axis that laser helical milling of the invention, which grinds hole set composite,
Laser generator and high-speed electric main shaft in two eccentric orfices；The adjustment axis pass through be arranged in its both ends needle bearing and
Angular contact bearing support is mounted in the eccentric orfice of revolution main shaft；The revolution main shaft is mounted in rack sleeve, and is passed through
Belt wheel connects revoluting motor, and rack sleeve drives entire axis system to complete axial feed, feeding sliding sleeve peace in feeding sliding sleeve
In feeding pedestal；The adjustment axis and revolution spindle nose is provided with the electromagnetic brake that can lock the two relative position
And the torque motor for adjusting axis spacing between high-speed electric main shaft and revolution main shaft；The electromagnetic brake first will adjustment
Axis and revolution main shaft are locked, and revoluting motor passes through band wheel drive revolution main shaft revolution, and the high-speed electric main shaft band rotary bistrique is high
Speed rotation carries out grinding to hole wall, and carries out eccentric rotary together with revolution main shaft, guarantees the circularity of drilling, feeds motor
Axial feed is carried out by lead screw driving spindle sleeve, and the helical milling in machined hole is completed by the compound motion of three motors
Mill amendment.
Laser generator and high-speed electric main shaft are symmetrically installed, and the eccentricity of high-speed electric main shaft axis and adjustment axis axis is e；
Laser generator axis is overlapped with revolution main-shaft axis, and is e with the eccentricity of adjustment axis axis.
The bistrique is mounted on the end of high-speed electric main shaft by the fixed dismountable knife handle of collet.
The center line overlapping positions setting angle encoder of torque motor and adjustment axis, revolution spindle nose are equipped with encoder
Reading head.
The laser generator, high-speed electric main shaft, torque motor and angular encoder cable all pass through conductive cunning
Ring is converted to slip ring lead-out wire, and the conducting slip ring is connect by slip ring fixing sleeve with main shaft connection cover.
The feeding motor via reducer connects lead screw, feeds and is equipped with guide rod and linear bearing on pedestal.
The feeding pedestal is removably mounted on fixed pedestal by fixing screws, and the fixed pedestal includes
Fixed bottom plate, vacuum chip-removal hole and the gland that workpiece surface can be adjacent to.
Laser helical milling of the present invention grinds the method for drilling of hole set composite, comprising the following steps:
A. electromagnetic brake is powered off and is unclamped, torque motor driving adjustment axis rotation leads laser generator axis and revolution
The offset of axis axis runout, laser generator axis is identical as drilling radius；
B. electromagnetic brake locks adjustment axis with revolution main shaft, and revoluting motor passes through band wheel drive revolution main shaft and revolves, and swashs
Optical generator rotates simultaneously with revolution main shaft, completes the cutting processing in hole；
The torque motor is adjusted the pore size of laser cut hole, and primary batch completes the processing of multiple hole；
C., bistrique is mounted on to the shaft end of high-speed electric main shaft, spiral milling amendment is carried out to laser cut hole；
D. feeding motor carries out axial feed by lead screw driving spindle sleeve, is sequentially completed laser generator and bistrique
Cutting processing and amendment to different size hole are processed.
Compared with prior art, the present invention is with following the utility model has the advantages that being repaired using laser fly-cutting and spiral milling
Just, the advantages of the two is in terms of drilling is combined, drilling precision is greatly improved；The present invention is inserted by the circumgyration incision substitution of laser
Cutting is mended, the efficiency of laser punching is greatly improved；The present invention, which is cut by laser, can complete different size with spiral milling
The processing in hole, and the device can portable use, hole machined position especially in aircraft radome is used alone, not by sky
Between limit.The method of the compound drilling of the present invention can substitute tradition using the hole machined process of diamond customization drill bit, drop significantly
Low cost.
Detailed description of the invention
The overall structure diagram of Fig. 1 punching device of the present invention；
The right view of Fig. 2 punching device of the present invention；
The feeding schematic diagram of Fig. 3 punching device of the present invention；
Fig. 4 present invention is detachably fixed the schematic diagram of pedestal；
In attached drawing: O1High-speed electric main shaft axis, O2High-speed electric main shaft axis, O3Laser generator axis, O4Revolution master
Axis axis；1- feeds pedestal；2- feeds sliding sleeve；3- rack sleeve；4- adjusts hubcap；5- revolution main shaft；6- needle bearing；7-
Adjust hubcap；8- laser generator and the fixed end cap of high-speed electric main shaft；9- laser generator；10- high-speed electric main shaft；11- can
Detachable knife handle；12- bistrique；13- adjusts axis；14- main shaft bearing；15- main shaft bearing outer sleeve；16- main shaft bearing inner sleeve；
17- lubricating arrangement；18- revoluting motor；19- revoluting motor fixed plate；20- revoluting motor adjusts sleeve；21- expansion tightening wheel；22-
One revolution small pulley；23- adjusts axis spring bearing；The revolution small pulley of 24- second；25- main shaft connection cover；26- torque motor peace
Fill seat；27- locking nut；28- electromagnetic brake；29- torque motor；30- angular encoder；31- encoder mounting base；32- high
Fast electro spindle conducting wire；33- laser generator conducting wire；34- torque motor conducting wire；35- electromagnetic brake and encoder conducting wire；36- is led
Electric slip ring；37- slip ring fixing sleeve；38- encoder count head；39- feeds belt wheel and pre-tightens wheel；40- feeds electrical machine belt pulley；41- into
To screw pulley；The fixed lid of 42- guide rod；43- linear bearing；44- guide rod；45- feeds motor；46- speed reducer；47-
Thick stick nut；48- lead screw bearing；49- feeds belt wheel expansion tightening wheel；50- stationary gland；51- vacuum chip-removal hole；52- fixes bottom plate；
53- fixing screws.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Referring to Fig. 1-4, it includes being separately mounted to 13 two, adjustment axis partially that laser helical milling of the present invention, which grinds hole set composite,
Laser generator 9 and high-speed electric main shaft 10 in heart hole.Adjustment axis 13 passes through the needle bearing 6 and angular contact that its both ends is arranged in
Bearing 23, which supports, to be mounted in the eccentric orfice of revolution main shaft 5, and revolution main shaft 5 is mounted in rack sleeve 3, and is connected by belt wheel
Revoluting motor 18, rack sleeve 3 drive entire axis system to complete axial feed in feeding sliding sleeve 2, and feeding sliding sleeve 2 is mounted on
It feeds in pedestal 1.Adjustment axis 13 and 5 end of main shaft of revolving be provided with the electromagnetic brake 28 that both can lock relative position and
For adjusting the torque motor 29 of axis spacing between high-speed electric main shaft 10 and revolution main shaft 5；Electromagnetic brake 28 will first adjust axis
13 is locked with revolution main shaft 5, and revoluting motor 18 passes through band wheel drive revolution main shaft 5 and revolves, and high-speed electric main shaft 10 is with rotary bistrique 12
High speed rotation carries out grinding to hole wall, and carries out eccentric rotary together with revolution main shaft 5, guarantees the circularity of drilling, bistrique
12 are mounted on the end of high-speed electric main shaft 10 by the fixed dismountable knife handle 11 of collet.Motor 45 is fed to drive by lead screw
Rack sleeve 3 carries out axial feed, by the compound motion of three motors, completes the spiral milling amendment in machined hole.
Laser generator 9 and high-speed electric main shaft 10 are symmetrically installed, high-speed electric main shaft axes O1With adjustment axis axes O2Bias
Away from for e；Laser generator axes O3With revolution main-shaft axis O4Be overlapped, and with adjustment axis axes O2Eccentricity be e.
The center line overlapping positions setting angle encoder of torque motor 29 and adjustment axis 13, revolution 5 end of main shaft are equipped with
Encoder count head 38, torque motor 29 are set according to angle command and the control adjustment rotation of axis 13 of closed loop angular encoder 30
Angle.Laser generator 9, high-speed electric main shaft 10, torque motor 29 and angular encoder cable all pass through conducting slip ring 36
Slip ring lead-out wire is converted to, the conducting slip ring 36 is connect by slip ring fixing sleeve 37 with main shaft connection cover 25.
It feeds motor 45 and lead screw is connected by speed reducer 46, feed and guide rod 44 and linear bearing 43 are installed on pedestal 1,
Revolution main shaft 5, main shaft connection cover 25, slip ring fixing sleeve 37 are connected by screw to, the public affairs connected by revoluting motor fixed plate 19
18 driving pulley of the rotating motor axis system that makes to revolve slowly runs feeding.
Feeding motor 45, speed reducer 46 and revoluting motor 18 are all fixed on the bearing (ball) cover of main shaft, feed screw nut 47,
Guide rod 44, linear bearing 43 are mounted on feeding pedestal 1, and feeding pedestal 1 is removably mounted to solid by fixing screws 53
Determine on pedestal, fixed pedestal includes fixed bottom plate 52, vacuum chip-removal hole 51 and the gland 50 that can be adjacent to workpiece surface.
Stationary gland 50 is mounted on fixed bottom plate 52, and vacuum chip removal tracheae is inserted into the gas vent of stationary gland 50, this
Fixation member belongs to detachable part, removes in laser punching technical process, installs and uses in helical milling mill drill process.
Laser helical milling of the present invention grinds hole set composite and carries out the processing method that laser helical milling grinds hole, including as follows
Step:
1. Cheng Qian is crossed in drilling, the detachable knife handle 11 that the device is equipped with bistrique is removed.
It is unclamped 2. electromagnetic brake 28 is powered off, torque motor 29 is according to the feedback letter of angle command and angular encoder 30
Breath, driving adjustment axis 3 rotate certain angle, realize laser generator axes O3With the O of revolution main-shaft axis4Deviate, laser hair
Raw device axes O3Offset it is identical as drilling radius；
3. electromagnetic brake 28 by adjust axis 13 and revolution main shaft 5 lock, revoluting motor 18 by first revolution small pulley 22,
The second revolution driving revolution main shaft 5 of small pulley 24 revolves, and laser generator 9 is in the eccentric orfice of revolution main shaft 5 with revolution
Main shaft 5 rotates simultaneously, completes the cutting processing in composite material hole；
4. torque motor 29 can in a certain range be adjusted the pore size of laser cut hole, and then disposable batch
Amount completes the processing in different size hole；
5. the hole that laser generator 9 is cut has certain defect, need to carry out into one processing hole by spiral milling
Dismountable knife handle 11 with bistrique 12, is mounted on the shaft end of high-speed electric main shaft 10 by step amendment.
6. fixation member is connected by fixing screws 53 with feeding pedestal 1, stationary gland 50 is adjacent in workpiece surface, vacuum
Chip-removal hole 51 is opened, and vacuum chip removal tracheae and fixation are inserted into.
7. electromagnetic brake 28 is unclamped, feedback of the torque motor 29 according to angle command and angular encoder 30, driving tune
Bearing 3 rotates certain angle, realizes high-speed electric main shaft axes O1With revolution main-shaft axis O4Deviation, meet processing hole aperture want
It asks；
8. electromagnetic brake 28 will adjust axis 13 and revolution main shaft 5 locks, revoluting motor 18 passes through band wheel drive and revolves
Main shaft 5 revolves, and high-speed electric main shaft 10 carries out grinding to hole wall with 12 high speed rotation of rotary bistrique, and and revolves main shaft 3 together
Eccentric rotary, guarantees the circularity of drilling, and feeding motor 45 drives revolution system to carry out axial feed, passes through three's by lead screw
Compound motion is completed the spiral milling to machined hole and is corrected.
9. torque motor 29 adjusts the rotational angle of adjustment axis 13 according to the pore size in the cut hole of laser generator 9,
It is sequentially completed the processing of the amendment to the cut different size hole of laser generator 9.
Claims (8)
1. a kind of laser helical milling grinds hole set composite, it is characterised in that: including being separately mounted to (13) two, adjustment axis partially
Laser generator (9) and high-speed electric main shaft (10) in heart hole；The adjustment axis (13) passes through the needle roller that its both ends is arranged in
Bearing (6) and angular contact bearing (23) support are mounted in the eccentric orfice of revolution main shaft (5)；Revolution main shaft (5) installation
Revoluting motor (18) are connected in rack sleeve (3), and through belt wheel, rack sleeve (3) drives entire axis system feeding
Axial feed is completed in sliding sleeve (2), feeding sliding sleeve (2) is mounted in feeding pedestal (1)；
The adjustment axis (13) and revolution main shaft (5) end is provided with the electromagnetic brake (28) that can lock the two relative position
And the torque motor (29) for adjusting axis spacing between high-speed electric main shaft (10) and revolution main shaft (5)；The electromagnetism
Band-type brake (28) is first locked by adjustment axis (13) and revolution main shaft (5), and revoluting motor (18) passes through public with wheel drive revolution main shaft (5)
Turn, the high-speed electric main shaft (10) band rotary bistrique (12) high speed rotation to hole wall carry out grinding, and with revolution main shaft (5)
Carry out eccentric rotary together, guarantee the circularity of drilling, feeding motor (45) by lead screw driving spindle sleeve (3) carry out it is axial into
It gives, by the compound motion of three motors, completes the spiral milling amendment in machined hole.
2. laser helical milling according to claim 1 grinds hole set composite, it is characterised in that: laser generator (9) and
High-speed electric main shaft (10) is symmetrically installed, high-speed electric main shaft axis (O1) and adjustment axis axis (O2) eccentricity be e；Laser occurs
Device axis (O3) and revolution main-shaft axis (O4) be overlapped, and with adjustment axis axis (O2) eccentricity be e.
3. laser helical milling according to claim 1 grinds hole set composite, it is characterised in that: the bistrique (12) is logical
Cross the end that the fixed dismountable knife handle (11) of collet is mounted on high-speed electric main shaft (10).
4. laser helical milling according to claim 1 grinds hole set composite, it is characterised in that: torque motor (29) and tune
The center line overlapping positions setting angle encoder of bearing (13), revolution main shaft (5) end are equipped with encoder count head (38).
5. laser helical milling according to claim 4 grinds hole set composite, it is characterised in that: laser generator (9), height
The cable of fast electro spindle (10), torque motor (29) and angular encoder all passes through conducting slip ring (36) and is converted to slip ring extraction
Line, the conducting slip ring (36) are connect by slip ring fixing sleeve (37) with main shaft connection cover (25).
6. laser helical milling according to claim 1 grinds hole set composite, it is characterised in that: the feeding motor (45)
Lead screw is connected by speed reducer (46), guide rod (44) and linear bearing (43) are installed in feeding pedestal (1).
7. laser helical milling according to claim 1 or 6 grinds hole set composite, it is characterised in that: the feeding base
Seat (1) is removably mounted on fixed pedestal by fixing screws (53), the fixed pedestal include fixed bottom plate (52),
Vacuum chip-removal hole (51) and the gland (50) that workpiece surface can be adjacent to.
8. a kind of method for drilling for grinding hole set composite using laser helical milling described in claim 1, it is characterised in that:
A. electromagnetic brake (28) are powered off and is unclamped, torque motor (29) driving adjustment axis (13) rotation makes laser generator axis
(O3) and revolution main-shaft axis (O4) deviate, laser generator axis (O3) offset it is identical as drilling radius；
B. electromagnetic brake (28) will adjust axis (13) and revolution main shaft (5) is locked, and revoluting motor (18) passes through band wheel drive and revolves
Main shaft (5) revolution, laser generator (9) rotate simultaneously with revolution main shaft (5), complete the cutting processing in hole；
The torque motor (29) is adjusted the pore size of laser cut hole, and primary batch completes the processing of multiple hole；
C., bistrique (12) is mounted on to the shaft end of high-speed electric main shaft (10), spiral milling amendment is carried out to laser cut hole；
D. feeding motor (45) by lead screw driving spindle sleeve (3) carry out axial feed, be sequentially completed laser generator (9) with
And bistrique (12) processes the cutting processing in different size hole and amendment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693785.9A CN107350808B (en) | 2017-08-14 | 2017-08-14 | A kind of laser helical milling grinds hole set composite and method for drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693785.9A CN107350808B (en) | 2017-08-14 | 2017-08-14 | A kind of laser helical milling grinds hole set composite and method for drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107350808A CN107350808A (en) | 2017-11-17 |
| CN107350808B true CN107350808B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710693785.9A Expired - Fee Related CN107350808B (en) | 2017-08-14 | 2017-08-14 | A kind of laser helical milling grinds hole set composite and method for drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107350808B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954908A (en) * | 2017-12-22 | 2019-07-02 | 西安增材制造国家研究院有限公司 | Portable punching device and its application method |
| CN108927557B (en) * | 2018-08-17 | 2024-02-13 | 西安增材制造国家研究院有限公司 | Spiral hole milling device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299143A1 (en) * | 1987-06-12 | 1989-01-18 | Raycon Textron Inc. | Laser/EDM drilling manufacturing cell |
| CN102794491A (en) * | 2012-08-22 | 2012-11-28 | 浙江大学 | Device and method of automatic helical milling of hole |
| CN106218916A (en) * | 2016-07-15 | 2016-12-14 | 浙江大学 | A kind of multi-functional end effector |
| CN106670808A (en) * | 2017-03-11 | 2017-05-17 | 苏州科技大学 | Multifunctional machining integrated machine for additives and consumables |
| CN106670751A (en) * | 2016-12-14 | 2017-05-17 | 中国民航大学 | Laser and spiral milling composited drilling method |
-
2017
- 2017-08-14 CN CN201710693785.9A patent/CN107350808B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299143A1 (en) * | 1987-06-12 | 1989-01-18 | Raycon Textron Inc. | Laser/EDM drilling manufacturing cell |
| CN102794491A (en) * | 2012-08-22 | 2012-11-28 | 浙江大学 | Device and method of automatic helical milling of hole |
| CN106218916A (en) * | 2016-07-15 | 2016-12-14 | 浙江大学 | A kind of multi-functional end effector |
| CN106670751A (en) * | 2016-12-14 | 2017-05-17 | 中国民航大学 | Laser and spiral milling composited drilling method |
| CN106670808A (en) * | 2017-03-11 | 2017-05-17 | 苏州科技大学 | Multifunctional machining integrated machine for additives and consumables |
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|---|---|
| CN107350808A (en) | 2017-11-17 |
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