CN105921769B - A kind of difficult processing axial UVC processing method of aeronautical material high speed - Google Patents

A kind of difficult processing axial UVC processing method of aeronautical material high speed Download PDF

Info

Publication number
CN105921769B
CN105921769B CN201610457707.4A CN201610457707A CN105921769B CN 105921769 B CN105921769 B CN 105921769B CN 201610457707 A CN201610457707 A CN 201610457707A CN 105921769 B CN105921769 B CN 105921769B
Authority
CN
China
Prior art keywords
vibration
axial
processing
points
high speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610457707.4A
Other languages
Chinese (zh)
Other versions
CN105921769A (en
Inventor
张德远
张翔宇
隋翯
姜兴刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beihang University
Original Assignee
Beihang University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beihang University filed Critical Beihang University
Priority to CN201610457707.4A priority Critical patent/CN105921769B/en
Publication of CN105921769A publication Critical patent/CN105921769A/en
Application granted granted Critical
Publication of CN105921769B publication Critical patent/CN105921769B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B3/02—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency involving a change of amplitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B37/00—Boring by making use of ultrasonic energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

The invention discloses a kind of difficult processing axial UVC processing method of aeronautical material high speed, is a kind of novel mechanical processing method for carrying out machining to difficult processing aeronautical material using axial ultrasonic vibratory Cutting Technology.The processing method is aided with the technological principle of interrupted cut, can be greatly enhanced cutting speed, shorten process time, improve processing efficiency and extend cutter life, reduce processing cost by using axial ultrasonic vibration cutting device.Cut compared to conventional vibration, greatly extend the application of ultrasonic vibrating machining technology.High speed, efficient, high quality processing more can be realized to difficult processing aeronautical material using processing method of the present invention.

Description

A kind of difficult processing axial UVC processing method of aeronautical material high speed
Technical field
A kind of method for carrying out High-speed machining using UVC to difficult processing aeronautical material of present invention design, it is more special Do not say, refer to that one kind uses axial ultrasonic vibrotechnique, hardly possible processing aeronautical material, especially titanium alloy are entered with high temperature alloy Row is interrupted, the efficient, method of high quality machining.
Background technology
Difficult-to-machine material refers to the material of the material for being difficult to machining, i.e. machinability difference.Machinability The material that more than 5 grades of Grade numbers belongs to difficult-to-machine material.《Modern processing (second edition)》, page 316, edit left honest Surely, publishing house of BJ University of Aeronautics ＆ Astronautics, in August, 2009.
Machining can be divided into according to cutter (blade) and the motion mode of workpiece and the shape of cutter：Turning, Milling, planing, drilling, boring, broaching, ream, tapping, gear shaping, gear hobbing etc..Any of the above processing has the cutter controlled oneself, institute It is various for the tool category of machining.
Conventional vibration is cut due to special processing mechanism, although can reduce cutting force, is reduced cutting temperature, is improved pole Cutting power and crudy are limited, but due to being restricted by limit velocity, cutting linear velocity very little (general 4~6m/min), Especially to the revolving meber such as major diameter major axis or deep hole made of difficult-to-machine material, efficiency seems very low, in actual cut application In be limited by very large.
The content of the invention
In order to improve the crudy and processing efficiency of difficult processing aeronautical material, the purpose of the present invention is to propose to one kind to be applicable In to the major diameter axle of the difficult processing aeronautical material such as titanium alloy or high temperature alloy or the high-efficiency machining method of deep hole, i.e. high speed axial direction UVC method.The processing method is combined the difficult processing aeronautical material titanium alloy major diameter of realization using turning with boring It the processing of major axis or deep hole, can greatly shorten process time, improve the crudy of difficult processing aeronautical material.The present invention adds Work method enables in particular to realize the high speed of major diameter major axis or hole, efficient, high quality processing.
The present invention proposes a kind of difficult processing axial UVC processing method of aeronautical material high speed, the processing method It is by installing axial ultrasonic vibration cutting device on existing lathe, and by the high speed shaft in axial ultrasonic vibration cutting device Vibrated to point of a knife caused by UVC cutter (2) along sinusoidal trajectory, the major diameter major axis designed with reference to Lathe control end Or the geometric properties of the difficult processing aeronautical material of deep hole, realized using clamping and positioning process；Specific processing mode is divided into turning Major diameter major axis, and the deep hole of boring major diameter major axis end.
Turning large-diameter major axis：
First knife cylindrical turning condition：250~300 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cuts Cut 0.01~0.03 millimeter of depth, vibration frequency about 20KHz, 50 volts of voltage, 1 ampere of electric current, bilateral 20 microns of amplitude；
Cylindrical turning process：Tool changing program is performed, and cylindrical car is ready for using axial ultrasonic vibration cutting device (8) Cut；Require that the circle bounce of workpiece right-hand member is not more than 0.005mm after holding out against；
The mobile strong point, sequentially carries out the second knife cylindrical turning, until completing cylindrical turning；
The deep hole of boring major diameter major axis end：
First knife deep hole boring condition：150~250 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cuts Cut 0.005~0.02 millimeter of depth；
Deep hole boring process：The machined workpiece to required surplus of clamping, clamps the jump required apart from chuck position 10mm Move and be not more than 0.002mm, the circle bounce at right side is not more than 0.01mm；Vibrating device is opened, is started according to previously generating Cutter path instruction carries out boring, is directly processed to the given size of part.
In a kind of difficult processing axial UVC processing method of aeronautical material high speed proposed by the present invention, open pre- The vibration turning device first debugged, apply the supersonic frequency large-amplitude vibration that amplitude is 8 μm to cutter upwards in workpiece spindle, lead to The phase in vibratory drive source is overregulated, the vibration of cutter is turned into the vibration of a sinusoidal trajectory so that working angles hereafter Middle cutter is in axial vibration state.
The present invention is to the advantages of high speed axial direction UVC method in major diameter major axis or hole：
1. the cutting principle vibrated by high rate intermittent, the rate limitation of vibrocutting is breached, for titanium alloy turning Highest 300m/min can be reached, 2 to 3 times are improved compared to common turning；2 to 3 can also be accordingly improved for high temperature alloy Times turning speed, so as to realize the purpose of highly-efficient processing.In the conventional turning process of tradition, the cutting speed scope of titanium alloy is about For 80~150m/min, and the cutting speed scope of high temperature alloy is about 70~80m/min.Therefore machining efficiency by Great limitation.
2. in the axial UVC process of high speed, using large amplitude (unilateral 10 microns), micro- cutting-in ap (0.008~0.010 millimeter), ultrasonic frequency vibration (20 KHzs or so), phase controlling are processed, and reduce the surface of workpiece Roughness, improve the dimensional accuracy of workpiece.
3. under high-speed cutting state, cutter and workpiece, chip, which occur, periodically to be separated or local detachment characteristic, cutting Power declines (for the 50%~70% of conventional cutting), and cutting temperature reduces and (declines 1 order of magnitude), effectively inhibits stress deformation With deterioration of the thermal deformation to workpiece quality.
4. the processing method of the present invention, matched ultrasonic vibration cutting device is mounted with numerically controlled lathe, is carried The working ability of numerically controlled lathe is risen so that the processing cost of hardly possible processing aeronautical material is minimized.
Brief description of the drawings
Fig. 1 is the external structure for the axial ultrasonic vibration cutting device that the present invention designs.
Figure 1A is another visual angle external structure for the axial ultrasonic vibration cutting device that the present invention designs.
Figure 1B is the sectional structure chart for the axial ultrasonic vibration cutting device that the present invention designs.
Fig. 1 C are the exploded views for the axial ultrasonic vibration cutting device that the present invention designs.
Fig. 2 is to use three-dimensional software to draw obtained workpiece isometric view.
Fig. 2A is size setting schematic diagram when workpiece is drawn using three-dimensional software.
Fig. 3 is cylindrical turning process schematic diagram of the present invention.
Fig. 4 is deep hole boring process schematic diagram of the present invention.
Fig. 5 A are the vibration mode schematic diagrames of the present invention.
Fig. 5 B are the point of a knife movement locus schematic diagrams of the present invention.
Fig. 6 is the microcosmic process figure of the present invention.
1. tool rest 2. the axial UVC cutter of high speed 201. housing screw
202. rear end cap 203. driving source 204. insulation sleeve
205. drive end bearing brackets and ultrasonic transformer 3. tool rest protecgulum 4. tool rest bonnet
5. blade 6. aviation plug 7. machine tool three-jaw chuck
Embodiment
The present invention is done with reference to accompanying drawing exemplified by processing TC4 titanium alloy major diameter major axis or deep hole below further detailed Explanation.
Referring to shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 C, the present invention is that matched height is installed on numerical control machining center Fast axial ultrasonic vibration cutting device, then pass through computer and the three-dimensional drawing software in the computer and control Software, the part (or workpiece) processed to needs carry out cutting control processing.
The present invention is a kind of high based on difficult processing aeronautical material progress of the axial ultrasonic vibration to major diameter major axis or hole class Effect, the method for high quality processing, the processing method include the step of processing preceding preparation and part processing, process and divide for part For turning large-diameter major axis, and the deep hole of boring major diameter major axis end.
Prepare before work pieces process
Step 1-1：Part configuration is digitized, is carried out using three-dimensional drawing software (such as CATIA/Autocad/Proe) The three-dimensional configuration of required processing part (TC4 titanium alloy major diameter major axis or hole)；The figure of configuration is as shown in Fig. 2.
Referring to shown in Fig. 2A, in the present invention, 1 is used according to required processing accessory size:1 proportional sizes are painted in three-dimensional Part configuration is carried out in figure software, and the dimension information is inputed into numerical control machining center；In the present invention, accessory size includes There are workpiece total length L, outer diameter D, hole length h, deep hole diameter d.
Step 1-2：Adjust Digit Control Machine Tool, it is desirable to which spindle rotation accuracy is in 0.02 millimeter after Digit Control Machine Tool adjustment, tail top Sharp centre of gyration line is with numerical control machining center main shaft rotation center axiality in 0.05 millimeter, and tail centre pressure is in 0.5Bar (bar).
Step 1-3：By the axial ultrasonic vibration cutting device clamping of high speed on the Digit Control Machine Tool adjusted, turning is finely tuned It is equal in Digit Control Machine Tool center height with blade 5.
Step 1-4：The regulation axial ultrasonic vibration cutting device high speed axial ultrasonic vibrocutting cutter 2 of high speed is adding The vibration parameters in man-hour are：Vibration frequency is 20 KHzs or so, and the unilateral amplitude of point of a knife of blade 5 is 10 μm.
Step 1-5：Blank should carry out rough turn peeling, smart car d-axis centering, to prevent during rough turn before processing Workpiece produces excessive residual stress, and rough turn bite control requires that workpiece is jumped for the circle of centre bore in 0.5mm after rough turn It is dynamic to be not more than 0.03mm.Hereafter, hole drilling processing is carried out, until allowance 0.1mm.
Referring to the axial ultrasonic vibration cutting device that shown in Fig. 1, Figure 1A, Figure 1B, Fig. 1 C, the present invention designs, the device bag The axial UVC cutter 2 of tool rest 1, high speed, tool rest protecgulum 3, tool rest bonnet 4, blade 5 and aviation plug 6 are included；At a high speed Axial ultrasonic vibrocutting cutter 2 is arranged in tool rest 1, is fixed by screw support, and the axial UVC cutter 2 of high speed Drive end bearing bracket and ultrasonic transformer 205 stretched out from 3 middle circular hole of tool rest protecgulum, the excitation in the axial UVC cutter 2 of high speed Source 203 and one end wire coupling of aviation plug 6；Tool rest protecgulum 3 is arranged on the front end of tool rest 1, and tool rest bonnet 4 is arranged on tool rest 1 rear end；Aviation plug 6 is arranged on the centre bore of tool rest bonnet 4, and the other end connects with outside ultrasonic vibration excitation power supply Connect, receive vibrational excitation signal caused by outside, be transmitted to the axial UVC cutter 2 of high speed.
Tool rest 1 is used for the high speed axial direction UVC cutter 2 for fixing the axial UVC cutter of high speed, one There is prominent clamp structure side, is clamped for machine tool clamping device.
Axial UVC cutter 2 is used to produce axial ultrasonic vibration required during processing at a high speed.
Axial UVC cutter 2 includes housing screw 201, rear end cap 202, driving source 203, insulation sleeve at a high speed 204th, drive end bearing bracket and ultrasonic transformer 205.
After the end of thread of housing screw 201 sequentially passes through rear end cap 202, the endoporus of driving source 203 and insulation sleeve 204, screw thread Be connected to the threaded interior hole of drive end bearing bracket and ultrasonic transformer 205, so as to realizing rear end cap 202, driving source 203 and drive end bearing bracket and Ultrasonic transformer 205 tightens together.
Driving source 203 is used to produce ultrasonic vibration required during processing.
Insulation sleeve 204 is among the endoporus of driving source 203 and housing screw 201.
Drive end bearing bracket and ultrasonic transformer 205 are integrated machine-shaping band round-corner transition multidiameter structure, drive end bearing bracket and ultrasonic transformer 205 one end, which are provided with, is used to installing the cutter groove of blade 5, and the other end of drive end bearing bracket and ultrasonic transformer 205 is platen surface, and platen surface center Provided with the screwed hole tightened for housing screw 201.
In the present invention, the vibration in a direction can be realized from a driving source 203.In figure 3, fierce source 203 A flexural vibrations are produced, in Fig. 4, driving source 203 produces the extensional vibration along fierce source.
In the present invention, during boring, the position of blade 5 as shown in Figure 1 is lateral, during turning, blade 5 as shown in Figure 1B Position be the different vibration mode in comprehensive fierce source 203 in drive end bearing bracket and the front end of ultrasonic transformer 205, the vibration of its point of a knife is Produced along the axial direction of workpiece.They can break through speed limit existing for conventional vibration cutting.Therefore can improve Process velocity.
Embodiment 1
Turning large-diameter major axis
It is of the invention to use turning process to carry out carrying out efficient, high quality processing based on axial ultrasonic vibration to major diameter major axis Method, hardly possible processing aeronautical material select TC4 titanium alloys, the step that the processing method prepares before including processing and part is processed Suddenly：
(1) prepare before processing
Step 1-1：Part configuration is digitized, is carried out using three-dimensional drawing software (such as CATIA/Autocad/Proe) The three-dimensional configuration of required processing major diameter long shaft part；The figure of configuration is as shown in Figure 2.
Referring to shown in Fig. 2A, in the present invention, 1 is used according to required processing accessory size:1 proportional sizes are painted in three-dimensional Part configuration is carried out in figure software, and the dimension information is inputed into numerical control machining center；In the present invention, accessory size includes There are workpiece total length L, outer diameter D, hole length h, deep hole diameter d.
Step 1-2：Adjust Digit Control Machine Tool, it is desirable to which spindle rotation accuracy is in 0.02 millimeter after Digit Control Machine Tool adjustment, tail top Sharp centre of gyration line is with numerical control machining center main shaft rotation center axiality in 0.05 millimeter, and tail centre pressure is in 0.5Bar (bar).
Step 1-3：By the axial ultrasonic vibration cutting device clamping of high speed on the Digit Control Machine Tool adjusted, turning is finely tuned It is equal in Digit Control Machine Tool center height with blade 5.
Step 1-4：High speed axial direction UVC cutter 2 in the regulation axial ultrasonic vibration cutting device of high speed exists Vibration parameters during processing are：Vibration frequency is 20 KHzs or so, and the unilateral amplitude of point of a knife of blade 5 is 10 μm.
Step 1-5：Blank should carry out rough turn peeling, smart car d-axis centering, to prevent during rough turn before processing Workpiece produces excessive residual stress, and rough turn bite control requires that workpiece is jumped for the circle of centre bore in 0.5mm after rough turn It is dynamic to be not more than 0.03mm.Hereafter, hole drilling processing is carried out, until allowance 0.1mm.
(2) major diameter long shaft part is processed
First knife cylindrical turning condition：250~300 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cuts Cut 0.01~0.03 millimeter of depth, vibration frequency about 20KHz, 50 volts of voltage, 1 ampere of electric current, bilateral 20 microns of amplitude；
It is shown in Figure 3, cylindrical turning process：Tool changing program performs, accurate using the axial UVC cutter 2 of high speed It is standby to carry out cylindrical turning.Require that the circle bounce of workpiece right-hand member is not more than 0.005mm after holding out against.
Referring to shown in Fig. 5 A, Fig. 5 B, the vibration turning device debugged in advance is opened, applies one to blade 5 in the axial direction The large-amplitude vibration of individual supersonic frequency, the large-amplitude vibration of the supersonic frequency is by the axial UVC cutter 2 of high speed There is provided, its unilateral amplitude is 10 μm；By adjusting the phase in vibratory drive source, make the vibration of cutter turn into a sinusoidal trajectory Vibration so that cutter is in axial vibration state in working angles hereafter, starts to refer to according to the cutter path previously generated Order carries out turning, is directly processed to the given size of part.In high rate intermittent axial ultrasonic vibrocutting process, use Large amplitude (unilateral 10 microns), micro- cutting-in ap(0.01~0.03 millimeter), ultrasonic frequency vibration (20 KHz), phase controlling are entered Row processing, the surface roughness of workpiece is reduced, improve the dimensional accuracy of workpiece.
Microprocess is cut as shown in fig. 6, it is the A-A ' in plane is fed of cutter shown in Fig. 5 B profile, one is shaken Dynamic cycle (from a points to e points) high speed UVC process can be divided into three phases：A points → b points are the incision stage, For b points → c points to cut out the stage, c points → e points are the cut-in without ball stage.In high-speed ultrasonic Vibration Cutting Process, cutter is with vibration balancing Line is the vibration that supersonic frequency is done in equilbrium position.
In each cutting cycle, blade 5 starts a cut through workpiece, chip width l from a pointsrGradually increase, it is whole during to b points The chip widths of individual working angles is maximum, position minimum point during b points on workpiece machining surface, in the blade in the incision stage Dynamic before angle beta1A process to diminish again of changing from small to big is presented, and angle beta before the theory of blade will be more than2, dynamic relief angle α1 Then in contrast, the theoretical relief angle α of blade will be less than2；When cutting out the stage of cycle is cut when blade 5 is in, since b points Chip width is gradually reduced, and is entirely cut influence of the cycle to finished surface during to c points and is terminated, in the blade for cutting out the stage Dynamic before angle beta1It is less than angle beta before the theory of blade2, dynamic relief angle α1Equally in contrast, it is greater than the theoretical relief angle of blade α2.Meanwhile pulled back in the stage blade that cuts out of b points → c points, cutting feed width frReduce, and blade is in chip width lrDirection On speed gradually accelerate, chip inverts with direction caused by rake face, and this reduction for radial-thrust force has Profit；C points → e points are the cut-in without ball stages in whole cutting cycle, and blade separates with workpiece and chip since c points, are realized discontinuously Cutting, all stage inner blade do not contact completely with workpiece machined surface, and cutting force is reduced to 0, surface of the blade to workpiece Pattern has no effect；When blade reaches e points, one cutting periodic process terminates, therefore a points → e points are one complete The cutting cycle, hereafter blade start to contact with workpiece next time, start next cutting cycle.Be thus blade, workpiece, The interrupted cut process periodically separated between chip.
In figure 6, angle beta before dynamic1Refer to the angle between the rake face of blade 5 and tool arc tangent line.Dynamic relief angle α1 Refer to the angle between rear knife face and the tool arc tangent line of blade 5.
Amount of feeding frRefer between workpiece outer contour and vibration balancing line and spacing.
Chip width lrRefer to the spacing between the rake face of blade 5 and the face to be processed of workpiece.
In the present invention, the mobile strong point, then carry out the second knife turning, the 3rd knife turning ..., it is big straight until completing The cylindrical turning of footpath major axis.
In process should be it is important to note that following aspect using the cylindrical turning processing method of the present invention：
(1) feed of every rotation is not more than unilateral 0.01 millimeter of amplitude, prevent due to the amount of feeding is excessive and become interrupted cut into Continuous cutting.
(2) state of wear of blade 5 is monitored in real time, once find the appearance of the state of wear of blade 5, i.e. more allowing blade replacement 5；
(3) speed of mainshaft (being designated as n) will meet according to cutting tool, machining condition(wherein A is to shake Width, D are workpiece external diameter, and ω is ultrasonic vibration angular frequency, α2For blade theory relief angle, π=3.14) under the conditions of, reasonable selection is kept away Exempt from tool wear.
(4) tail centre position should ensure that sufficient oil lubrication, and can not have the interference of the debris such as chip；
(5) in working angles, interruption loosens tail centre and discharges stress, and ensureing should in the absence of prolonged remnants in workpiece Power.
Embodiment 2
Boring deep hole
The method that the present invention carries out efficient high quality processing using boring technique to the deep hole of major diameter major axis end is difficult The step of processing aeronautical material selects TC4 titanium alloys, and the processing method includes the preceding preparation of processing and part processing：
(1) prepare before processing
Step 1-1：Part configuration is digitized, is carried out using three-dimensional drawing software (such as CATIA/Autocad/Proe) The three-dimensional configuration of required processing major diameter long shaft part；The figure of configuration is as shown in Figure 2.
Referring to shown in Fig. 2A, in the present invention, 1 is used according to required processing accessory size:1 proportional sizes are painted in three-dimensional Part configuration is carried out in figure software, and the dimension information is inputed into numerical control machining center；In the present invention, accessory size includes There are workpiece total length L, outer diameter D, hole length h, deep hole diameter d.
Step 1-2：Adjust Digit Control Machine Tool, it is desirable to which spindle rotation accuracy is in 0.02 millimeter after Digit Control Machine Tool adjustment.
Step 1-3：By the axial clamping of UVC cutter 2 of high speed on the Digit Control Machine Tool adjusted, turning is finely tuned It is equal in Digit Control Machine Tool center height with blade 5.
Step 1-4：Adjusting vibration parameters of the axial UVC cutter 2 of high speed in processing is：Vibration frequency is 20 KHzs or so, the unilateral amplitude of point of a knife of blade 5 is 8 μm.
Step 1-5：Blank should carry out rough turn peeling, smart car d-axis centering, to prevent during rough turn before processing Workpiece produces excessive residual stress, and rough turn bite control requires that workpiece is jumped for the circle of centre bore in 0.5mm after rough turn It is dynamic to be not more than 0.03mm.Hereafter, hole drilling processing is carried out, until allowance 0.1mm.
(2) deep-hole parts are processed
First knife deep hole boring condition：150~250 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cuts Cut 0.005~0.02 millimeter of depth；
It is shown in Figure 4, internal bore boring process：The machined workpiece to required surplus of clamping, clamps and requires apart from lathe The position 10mm of scroll chuck 7 bounce is not more than 0.002mm, and the circle bounce at right side be not more than 0.01mm, opens vibration and fills Put, start to carry out boring according to the cutter path instruction previously generated, be directly processed to the given size of part.
Referring to shown in Fig. 5 A, Fig. 5 B, the vibration turning device debugged in advance is opened, applies one to blade 5 in the axial direction The large-amplitude vibration of individual supersonic frequency, the large-amplitude vibration of the supersonic frequency is by the axial UVC cutter 2 of high speed There is provided, its unilateral amplitude is 8 μm；By adjusting the phase in vibratory drive source, make the vibration of cutter turn into a sinusoidal trajectory Vibration so that cutter is in axial vibration state in working angles hereafter, starts to refer to according to the cutter path previously generated Order carries out turning, is directly processed to the given size of part.In high rate intermittent axial ultrasonic vibrocutting process, use Large amplitude (unilateral 8 microns), micro- cutting-in ap(0.005~0.02 millimeter), ultrasonic frequency vibration (20 KHz), phase controlling are entered Row processing, the surface roughness of workpiece is reduced, improve the dimensional accuracy of workpiece.
Microprocess is cut as shown in fig. 6, it is the A-A ' in plane is fed of cutter shown in Fig. 5 B profile, one is shaken Dynamic cycle (from a points to e points) high speed UVC process can be divided into three phases：A points → b points are the incision stage, For b points → c points to cut out the stage, c points → e points are the cut-in without ball stage.In high-speed ultrasonic Vibration Cutting Process, cutter is with vibration balancing Line is the vibration that supersonic frequency is done in equilbrium position.
In each cutting cycle, blade 5 starts a cut through workpiece, chip width l from a pointsrGradually increase, it is whole during to b points The chip widths of individual working angles is maximum, position minimum point during b points on workpiece machining surface, in the blade in the incision stage Dynamic before angle beta1A process to diminish again of changing from small to big is presented, and angle beta before the theory of blade will be more than2, dynamic relief angle α1 Then in contrast, the theoretical relief angle α of blade will be less than2；When cutting out the stage of cycle is cut when blade 5 is in, since b points Chip width is gradually reduced, and is entirely cut influence of the cycle to finished surface during to c points and is terminated, in the blade for cutting out the stage Dynamic before angle beta1It is less than angle beta before the theory of blade2, dynamic relief angle α1Equally in contrast, it is greater than the theoretical relief angle of blade α2.Meanwhile pulled back in the stage blade that cuts out of b points → c points, cutting feed width f reduces, and blade is in chip width lrDirection On speed gradually accelerate, chip inverts with direction caused by rake face, and this reduction for radial-thrust force has Profit；C points → e points are the cut-in without ball stages in whole cutting cycle, and blade separates with workpiece and chip since c points, are realized discontinuously Cutting, all stage inner blade do not contact completely with workpiece machined surface, and cutting force is reduced to 0, surface of the blade to workpiece Pattern has no effect；When blade reaches e points, one cutting periodic process terminates, therefore a points → e points are one complete The cutting cycle, hereafter blade start to contact with workpiece again, start next cutting cycle.It is thus blade, workpiece, cuts The interrupted cut process periodically separated between bits.
In figure 6, angle beta before dynamic1Refer to the angle between the rake face of blade 5 and tool arc tangent line.Dynamic relief angle α1 Refer to the angle between rear knife face and the tool arc tangent line of blade 5.
Amount of feeding frRefer between workpiece outer contour and vibration balancing line and spacing.
Chip width lrRefer to the spacing between the rake face of blade 5 and the face to be processed of workpiece.
In the present invention, then carry out the second knife turning, the 3rd knife turning ..., until complete deep hole boring.
In process should be it is important to note that following aspect using the boring process of the present invention：
(1) feed of every rotation is not more than unilateral 0.008 millimeter of amplitude, prevent due to the amount of feeding is excessive and become interrupted cut into Continuous cutting.
(2) state of wear of blade 5 is monitored in real time, once find the appearance of the state of wear of blade 5, i.e. more allowing blade replacement 5；
(3) speed of mainshaft (n) will meet according to cutting tool, machining condition(wherein A is amplitude, D is workpiece external diameter, and ω is ultrasonic vibration angular frequency, α2For blade theory relief angle) under the conditions of, reasonable selection avoids blade abrasion.
(4) Vibration Condition of workpiece is observed in real time, is rationally controlled cutting speed, is prevented flutter, in order to avoid cause deep hole to draw Wound and poor surface quality.
A kind of high rate intermittent ultrasonic vibration car (boring) of difficult processing aeronautical material proposed by the present invention cuts processing method, is profit With axial ultrasonic vibratory Cutting Technology, aeronautical material part is processed to the hardly possible such as major diameter major axis or hole, carries out one kind of machining Novel mechanical processing method.For the processing method by using axial ultrasonic vibration cutting device, the technique for being aided with interrupted cut is former Reason, greatly improves cutting speed, shortens process time, improves processing efficiency, extends cutter life, degrades and be processed into This, optimizing surface quality, suppresses flutter, improves crudy.Titanium alloy, high temperature can more be closed using processing method of the present invention The difficult processing aeronautical material workpiece such as gold realizes high speed, the efficient, processing of high quality.Axial UVC is due to its spy at a high speed Some movement locus and cutting principle so that it, which had both had, is greatly lowered resistance to cutting (the about 50%- of conventional cutting drag 70% or so) cutting temperature, is reduced, limit cutting power is improved, vibrates insensitive characteristic, the excellent system of grade one of machined surface quality Row outstanding feature, while cutting of hardworking material limit velocity (being more than 100 ms/min) is breached again, stock-removing efficiency effectively carries It is high.It can be seen that the axial UVC of high speed is that a kind of difficult processing processing aeronautical material is effective and efficient method.

Claims (3)

  1. A kind of 1. difficult processing axial UVC processing method of aeronautical material high speed, it is characterised in that：The processing method is Produced by installing the axial ultrasonic vibration cutting device of high speed on existing lathe, and by the axial ultrasonic vibration cutting device of high speed Point of a knife vibrated along sinusoidal trajectory, the major diameter major axis that is designed with reference to Lathe control end or the difficult processing aeronautical material of deep hole it is several What feature, realized using clamping and positioning process；Specific processing mode is divided into turning large-diameter major axis, and boring major diameter length The deep hole of shaft end；
    Turning large-diameter major axis：
    First knife cylindrical turning condition：250~300 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cutting depth 0.01~0.03 millimeter, vibration frequency about 20KHz, 50 volts of voltage, 1 ampere of electric current, bilateral 20 microns of amplitude；
    Cylindrical turning process：Tool changing program is performed, and cylindrical turning is ready for using axial ultrasonic vibration cutting device (8)；Top It is next to require that the circle bounce of workpiece right-hand member is not more than 0.005mm；
    The mobile strong point, sequentially carries out the second knife cylindrical turning, until completing cylindrical turning；
    The deep hole of boring major diameter major axis end
    First knife deep hole boring condition：150~250 ms/min of linear velocity, 0.005~0.015 millimeter of the amount of feeding/turn, cutting depth 0.005~0.02 millimeter；
    Deep hole boring process：The machined workpiece to required surplus of clamping, clamp require apart from chuck position 10mm bounce not More than 0.002mm, the circle bounce at right side is not more than 0.01mm；Vibrating device is opened, is started according to the cutter previously generated Path instructions carry out boring, are directly processed to the given size of part.
  2. 2. a kind of difficult processing axial UVC processing method of aeronautical material high speed according to claim 1, it is special Sign is：The vibration turning device debugged in advance is opened, applies the supersonic frequency that unilateral amplitude is 8 μm to cutter in the axial direction Large-amplitude vibration, by adjusting the phase in vibratory drive source, the vibration of cutter is set to turn into the vibration of a sinusoidal trajectory so that this Cutter is in axial vibration state in working angles afterwards.
  3. 3. a kind of difficult processing axial UVC processing method of aeronautical material high speed according to claim 1, it is special Sign is：For this method in a vibration period from a points to e points, high-speed ultrasonic Vibration Cutting Process is divided into three phases：a Point → b points are the incision stage, and for b points → c points to cut out the stage, c points → e points are the cut-in without ball stage；In high-speed ultrasonic vibrocutting Cheng Zhong, cutter do the vibration of supersonic frequency using vibration balancing line as equilbrium position.
CN201610457707.4A 2016-06-22 2016-06-22 A kind of difficult processing axial UVC processing method of aeronautical material high speed Active CN105921769B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610457707.4A CN105921769B (en) 2016-06-22 2016-06-22 A kind of difficult processing axial UVC processing method of aeronautical material high speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610457707.4A CN105921769B (en) 2016-06-22 2016-06-22 A kind of difficult processing axial UVC processing method of aeronautical material high speed

Publications (2)

Publication Number Publication Date
CN105921769A CN105921769A (en) 2016-09-07
CN105921769B true CN105921769B (en) 2018-01-09

Family

ID=56830665

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610457707.4A Active CN105921769B (en) 2016-06-22 2016-06-22 A kind of difficult processing axial UVC processing method of aeronautical material high speed

Country Status (1)

Country Link
CN (1) CN105921769B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106424836A (en) * 2016-12-26 2017-02-22 东北大学 Axial ultrasonic vibration drilling device fixed by lathe carriage
CN107052401B (en) * 2017-05-15 2018-08-10 北京航空航天大学 A kind of axial low frequency rotary vibration device applied to difficult-to-machine material deep hole machining
CN109454241B (en) * 2018-11-02 2020-12-22 厦门虹鹭钨钼工业有限公司 Ultrasonic processing method for tungsten/molybdenum product surface
CN109773240B (en) * 2018-12-25 2019-12-03 北京航空航天大学 A kind of gas-electricity one quick-speed plug device applied on ultrasonic vibration pneumatic drill
CN111014739B (en) * 2019-12-26 2021-09-24 嘉兴博创智能传感科技有限公司 Ultrasonic vibration mechanism of common lathe
CN111390218B (en) * 2020-03-04 2021-02-26 北京航空航天大学 Hole strengthening processing method based on ultrasonic bending vibration boring
CN112719315B (en) * 2020-12-16 2022-07-01 东莞市光志光电有限公司 Rubber roller and processing method thereof, display film and processing method thereof
CN112828319A (en) * 2020-12-28 2021-05-25 北京动力机械研究所 Ultrasonic bending vibration auxiliary turning device and method for ceramic matrix composite
CN112828908B (en) * 2021-01-22 2022-02-08 南京晓庄学院 Bidirectional interrupted milling type robot hole making device and hole making method thereof
CN113523436A (en) * 2021-06-30 2021-10-22 贵州大学 Processing method for improving cutting performance of high-strength titanium alloy

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633047A (en) * 2009-08-12 2010-01-27 北京航空航天大学 Multicut ultrasonic vibration cutting device
CN102049531A (en) * 2010-11-04 2011-05-11 北京航空航天大学 High-speed continuous ultrasonic radial vibration cutting method and realization device thereof
CN102500775A (en) * 2011-09-30 2012-06-20 北京航空航天大学 Numerical control and reducing ultrasonic vibration device for machining complicated inner cavity of deep hole
CN103157593A (en) * 2013-03-11 2013-06-19 北京航空航天大学 Ultrasound ellipse vibration milling knife handle device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4738805B2 (en) * 2004-12-16 2011-08-03 株式会社リコー Screen sharing system, screen sharing method, screen sharing program
JP2006189472A (en) * 2004-12-28 2006-07-20 Nidek Co Ltd Spectacle lens processing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633047A (en) * 2009-08-12 2010-01-27 北京航空航天大学 Multicut ultrasonic vibration cutting device
CN102049531A (en) * 2010-11-04 2011-05-11 北京航空航天大学 High-speed continuous ultrasonic radial vibration cutting method and realization device thereof
CN102500775A (en) * 2011-09-30 2012-06-20 北京航空航天大学 Numerical control and reducing ultrasonic vibration device for machining complicated inner cavity of deep hole
CN103157593A (en) * 2013-03-11 2013-06-19 北京航空航天大学 Ultrasound ellipse vibration milling knife handle device

Also Published As

Publication number Publication date
CN105921769A (en) 2016-09-07

Similar Documents

Publication Publication Date Title
CN105921769B (en) A kind of difficult processing axial UVC processing method of aeronautical material high speed
CN102717115B (en) High-speed intermittent ultrasonic vibration cutting method for low-rigidity parts
US10118232B2 (en) High-speed precision interrupted ultrasonic vibration cutting method
CN101966596B (en) High-length-to-diameter ratio variable-section slender shaft ultrasonic elliptical vibration turning machining method
CN110076350B (en) Ultrasonic stamping type cutting and extruding integrated processing method
JP5135614B2 (en) Drill for composite material and machining method and machining apparatus using the same
JP2012024925A (en) Rotating cutting insert assembly, and method of using the same
CN108406233A (en) The processing method of irregular housing member intracavity bottom annular groove
CN111570878B (en) High-speed rough milling method for impeller
CN103909288A (en) Electrophoretic assisted ultrasonic mechanical composite micro-drilling machining device
CN104014989A (en) Semi-circular hole machining method
US8512098B1 (en) Machining technique using a plated superabrasive grinding wheel on a swiss style screw machine
CN112059535B (en) Aluminum-based silicon carbide thread precision machining method
CN102962734A (en) Opening grinding machine of hole-machining tool
CN101716688B (en) Processing method of special electric power fitting taper sleeve taper hole for carbon fibre compound core wires and special device thereof
CN115213643A (en) Method for machining overlong hollow reducing high-precision rotor shaft of aero-engine
CN202894903U (en) Opening grinder for drilling tools
RU2714757C1 (en) Thread-milling cutter
CN107442830A (en) A kind of slotting cutter for being used to finish and its processing method
WO2021240224A1 (en) A system and method for dual tool holder rest arrangement for turning in machining operation
Patel et al. A study on Types of Lathe Machine and Operations
CN213794292U (en) Reinforcing cutter bar for small hole
CN206305498U (en) For micro hole machining cutter
CN206794794U (en) A kind of gang tool
JP7271160B2 (en) Cutting device and cutting method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Zhang Deyuan

Inventor after: Su Lankui

Inventor after: Zhang Heqing

Inventor after: Lu Chengyu

Inventor after: Zhang Xiangyu

Inventor after: The Sui Dynasty

Inventor after: Jiang Xinggang

Inventor after: Geng Daxi

Inventor after: Li Xun

Inventor after: Zhao Xianhua

Inventor after: Lu Dawei

Inventor after: Han Xiong

Inventor before: Zhang Deyuan

Inventor before: Zhang Xiangyu

Inventor before: The Sui Dynasty

Inventor before: Jiang Xinggang