CN110340614A - Aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining method - Google Patents
Aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining method Download PDFInfo
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- CN110340614A CN110340614A CN201910584952.5A CN201910584952A CN110340614A CN 110340614 A CN110340614 A CN 110340614A CN 201910584952 A CN201910584952 A CN 201910584952A CN 110340614 A CN110340614 A CN 110340614A
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention proposes a kind of aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining methods, comprising: determines that revolving speed, feeding and the brill of the first cutter T1 and the first cutter are deep；Determine processing angle cutting tool diameter, length；Determine revolving speed, the feeding, cutting-in of the second cutter T2 and the second cutter T2；Determine third cutter T3 and third cutter T3 revolving speed, feeding, cutting-in；According to the parameter of the first cutter T1, the second cutter T2 and third cutter T3, establishment processing trial cut program, and part is processed according to trial cut program；Based on trial cut program composition part program, until the sealed precision hole of part and Hole chamfering are worked into final size.The embodiment of the present invention is matched suitable process tool according to aperture and is processed, and guarantees final size and required precision, not only can solve the processing difficulties in sealed precision hole, but also the processing efficiency of part can be improved using modern efficient numerically controlled processing equipment and processing method.
Description
Technical field
The present invention relates to aviation Computerized Numerical Control processing technology field more particularly to a kind of hole and Hole chamfering with seal request are high
Effect processing calculates and control method.
Background technique
Hydraulic pressure manifold is that oil circuit integrates part in airplane Hydraulic Tube system, and hydraulic pressure manifold has high pressure resistant, sealing strong
The joint face of feature, these discrimination pipe parts and hydraulic pipe has high seal request, guarantees in prolonged work
It is not in leakage, therefore public to the joint face sealing hole dimensional accuracy of these manifold parts, contact Hole chamfering finish, morpheme
Difference etc. requires very strict, phenomena such as otherwise will cause unqualified leakage test, oil leak during assembling test.Add by existing
The shortcomings that work scheme, majority are to be added into using common machine, the processing method: assembling combination fixture carries out turning, due to aperture
Smaller, turning process integrated artistic system rigidity is poor, and size is easily overproof；The thread seal hole and aperture direction of different directions are not
Unanimously, it is therefore desirable to carry out multiple built-up jig assembly, there are errors for multiple clamping positioning, cause product processing that accumulation is caused to miss
It is poor big；The time is expended since multiple turning attachment loads and unloads adjustment, high to operative skill level requirement, processing efficiency is extremely low, it is difficult to
Meet batch production needs.
Summary of the invention
The purpose of the present invention is: propose that one kind is high in machining efficiency, machining accuracy is high, a kind of aluminium alloy of stable and reliable quality
Sealed precision hole and Hole chamfering high-efficiency machining method.
The technical scheme is that being related to a kind of aluminium alloy sealing the present invention relates to aviation Computerized Numerical Control processing technology field
Precision holes and Hole chamfering high-efficiency machining method.The present invention provides one kind highly-efficient processing aluminium alloy sealed precision hole on CNC milling machine
And the method for Hole chamfering.By first processing sealed precision hole and hole bottom chamfer in CNC milling machine, post-processing hole top chamfer
Method solves the problems, such as sealed precision hole and Hole chamfering processing efficiency.Suitable process tool is matched according to aperture to be processed, and is protected
Demonstrate,prove final size and required precision.The present invention not only can solve the processing difficulties in sealed precision hole, but also can utilize modern efficient numerical control
Process equipment and processing method improve the processing efficiency of part.
This method the following steps are included:
Step 1: clamping parts；
Wherein, the non-processing position of part has positioning reference plane, is positioned using positioning reference plane, part is clamped solid
Rotating table of numerical control machine is scheduled on (comprising pressing plate, the spiral shell for gripping part in the rotating table of numerical control machine
Nail, nut attachment) predeterminated position, position to be processed is sealed precision hole and Hole chamfering, and Hole chamfering is that sealed precision hole bottom is fallen
Angle and sealed precision hole top chamfer；
Step 2: according to the diameter in sealed precision hole, depth, it is determining to process required bit diameter, length when just hole；
Step 3: requiring according to step 2, the first cutter T1 (representing drill bit) is determined；
Step 4: according to the first cutter T1 (drill bit), cutter T1 (drill bit) revolving speed in process, feeding, every time are determined
It bores deep；
Step 5: determining processing angle cutting tool diameter, length according to the diameter in sealed precision hole, depth；
Step 6: determining processing angle cutting tool bottom sword according to sealed precision hole bottom chamfer, bottom chamfer finish
Chamfering, bottom sword finish；
Step 7: determining to step 6 requirement according to step 5 and disposably processing sealed precision hole and sealed precision hole
Second cutter T2 (angle cutting tool) of bottom chamfer；
Step 8: determining cutter T2 revolving speed, feeding, cutting-in in process according to the second cutter T2 (angle cutting tool)；
Step 9: determining third cutter T3 (angle cutting tool) according to sealed precision hole top chamfer, top chamfer finish
When processing sealed precision hole top chamfer when the chamfering of cutter bottom sword, processing top the bottom third cutter T3 sword finish；
Wherein, due to being in addition open area at the top of sealed precision hole, for this purpose, to the straight of third cutter T3 (angle cutting tool)
Diameter and length are preset in due course；
Step 10: determining cutter T3 revolving speed, feeding, cutting-in in process according to third cutter T3 (angle cutting tool)；
Step 11: establishment processing trial cut program, until sealed precision hole and Hole chamfering are worked into final size；
It is needed before programming,
It according to the depth in sealed precision hole, bottom chamfer, calculates: the execution when processing sealed precision hole and bottom chamfer
Program axialy offset value and execution program radial offset value；
Program axialy offset value and execution will be executed in the depth and bottom chamfer program in establishment processing sealed precision hole
Program radial offset value is configured；
According to sealed precision hole top chamfer, calculate: execution program axialy offset value when process bottom chamfer with hold
Line program radial offset value；
Program axialy offset value will be executed in the top chamfer program in establishment processing sealed precision hole and will execute program diameter
It is configured to bias；
According to the required precision of sealing hole, bottom chamfer smoothness requirements, top chamfer smoothness requirements, determines and be arranged
Fortunately the machining accuracy value that program is executed in overall process is processed；
Step 12: according to revolving speed, feeding, cutting-in and the step 11 that trial cut effect adjusts in process
Parameter value；
Part program is worked out, until sealed precision hole and Hole chamfering are worked into final size.
The embodiment of the present invention is fallen at the top of post-processing hole by first processing sealed precision hole and hole bottom chamfer in CNC milling machine
The method at angle solves the problems, such as sealed precision hole and Hole chamfering processing efficiency.Suitable process tool is matched according to aperture to be added
Work guarantees final size and required precision.The present invention not only can solve the processing difficulties in sealed precision hole, but also can utilize modern efficient
Numerically controlled processing equipment and processing method improve the processing efficiency of part.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it is therefore apparent that drawings described below is only some embodiments of the present invention, for this
For the technical staff in field, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the schematic diagram in the first hole of brill of one embodiment of the invention；
Fig. 2 is the processing bottom chamfer of one embodiment of the invention and the schematic diagram of sealing hole；
Fig. 3 is the schematic diagram of the processing top chamfer of one embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, those skilled in the art
Without making creative work, every other embodiment obtained, shall fall within the protection scope of the present invention.
The feature and illustrative examples of various aspects of the invention is described more fully below.In following detailed description
In, many details are proposed, in order to provide complete understanding of the present invention.But come for those skilled in the art
It says it will be apparent that the present invention can be implemented in the case where not needing some details in these details.Below to reality
The description of example is applied just for the sake of providing and better understanding to of the invention by showing example of the invention.The present invention is never
It is limited to any specific setting and method set forth below, but covering finishes under the premise of without departing from the spirit of the present invention
Structure, method, any improvement of device, substitutions and modifications.In the the accompanying drawings and the following description, well known structure and skill is not shown
Art is unnecessary fuzzy to avoid causing to the present invention.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention and embodiment can be tied mutually
It closes, each embodiment mutually can be referred to and be quoted.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
With reference to Fig. 1-Fig. 3, a kind of aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining method, comprising the following steps:
S11, it is determining to process required bit diameter, length when just hole according to the diameter in sealed precision hole, depth, and determine
The revolving speed of first cutter T1 and the first cutter, feeding and brill are deep；
S12 determines processing angle cutting tool diameter, length according to the diameter in sealed precision hole, depth；According to sealing essence
Hole bottom chamfer, bottom chamfer finish are spent, determines processing angle cutting tool bottom sword chamfering, bottom sword finish, and determine
The revolving speed of disposable the second cutter T2 and the second cutter T2 for processing sealed precision hole and sealed precision hole bottom chamfer,
Feeding, cutting-in；
S13 determines that third cutter T3 processes sealed precision according to sealed precision hole top chamfer, top chamfer finish
The finish of the bottom third cutter T3 sword when the chamfering of cutter bottom sword when the top chamfer of hole, processing top, knife in process
Have T3 revolving speed, feeding, cutting-in；
S14, according to the parameter of the first cutter T1, the second cutter T2 and third cutter T3, establishment processing trial cut program, and root
Part is processed according to trial cut program；
S15 is based on trial cut program composition part program, until the sealed precision hole of part and Hole chamfering are worked into most
Whole size.
In some embodiments, it according to the depth H=4mm in sealed precision hole, bottom chamfer α=80 °, confirmation: is processing
Execution program axialy offset value B when sealed precision hole and bottom chamfer is 1.93mm, and executes program radial offset value C and be
6.3mm.In the depth and bottom chamfer program in establishment processing sealed precision hole, program axialy offset value will be executed and execute journey
Sequence radial offset value is configured.According to sealed precision hole top chamfer β=120 °, the execution when processing top chamfer is confirmed
Program axialy offset value E is 2.59mm, and executing program radial offset value F is 1.5mm.On the top in establishment processing sealed precision hole
Program axialy offset value will be executed when portion's chamfering program and executes program radial offset value is configured.According to the precision of sealing hole
It is required that D is φ 12.5H11mm, Ra0.8 μm of bottom chamfer smoothness requirements, Ra0.8 μm of top chamfer smoothness requirements, determine simultaneously
Setting and executing the machining accuracy value of program in processing overall process is 0.005mm.
In some embodiments, the first cutter T1 be drill bit, the revolving speed S1=800-1500turn_mn of the first cutter T1,
It feeds F1=50-100mm_mn, bore depth 1-3mm every time.
Second cutter T2 is angle cutting tool.In process, the second cutter T2 revolving speed S2=7000-8000turn_mn, into
To F2=500-800mm_mn, cutting-in Ap2=0.2-0.4mm.
Third cutter T3 is angle cutting tool, revolving speed S2=7000-8000turn_mn, the feeding F2=of third cutter T3
500-800mm_mn, cutting-in Ap2=0.2-0.4mm.
The purpose of the present invention is: propose that one kind is high in machining efficiency, machining accuracy is high, a kind of aluminium alloy of stable and reliable quality
Sealed precision hole and Hole chamfering high-efficiency machining method.
The technical scheme is that being related to a kind of aluminium alloy sealing the present invention relates to aviation Computerized Numerical Control processing technology field
Precision holes and Hole chamfering high-efficiency machining method.The present invention provides one kind highly-efficient processing aluminium alloy sealed precision hole on CNC milling machine
And the method for Hole chamfering.By first processing sealed precision hole and hole bottom chamfer in CNC milling machine, post-processing hole top chamfer
Method solves the problems, such as sealed precision hole and Hole chamfering processing efficiency.Suitable process tool is matched according to aperture to be processed, and is protected
Demonstrate,prove final size and required precision.The present invention not only can solve the processing difficulties in sealed precision hole, but also can utilize modern efficient numerical control
Process equipment and processing method improve the processing efficiency of part.
This method may comprise steps of:
Step 1: clamping parts；
Wherein, the non-processing position of part has positioning reference plane, is positioned using positioning reference plane, part is clamped solid
Rotating table of numerical control machine is scheduled on (comprising pressing plate, the spiral shell for gripping part in the rotating table of numerical control machine
Nail, nut attachment) predeterminated position, position to be processed is sealed precision hole and Hole chamfering, and Hole chamfering is that sealed precision hole bottom is fallen
Angle and sealed precision hole top chamfer；
Step 2: according to the diameter in sealed precision hole, depth, it is determining to process required bit diameter, length when just hole；
Step 3: requiring according to step 2, the first cutter T1 (representing drill bit) is determined；
Step 4: according to the first cutter T1 (drill bit), cutter T1 (drill bit) revolving speed in process, feeding, every time are determined
It bores deep；
Step 5: determining processing angle cutting tool diameter, length according to the diameter in sealed precision hole, depth；
Step 6: determining processing angle cutting tool bottom sword according to sealed precision hole bottom chamfer, bottom chamfer finish
Chamfering, bottom sword finish；
Step 7: determining to step 6 requirement according to step 5 and disposably processing sealed precision hole and sealed precision hole
Second cutter T2 (angle cutting tool) of bottom chamfer；
Step 8: determining cutter T2 revolving speed, feeding, cutting-in in process according to the second cutter T2 (angle cutting tool)；
Step 9: determining third cutter T3 (angle cutting tool) according to sealed precision hole top chamfer, top chamfer finish
When processing sealed precision hole top chamfer when the chamfering of cutter bottom sword, processing top the bottom third cutter T3 sword finish；
Wherein, due to being in addition open area at the top of sealed precision hole, for this purpose, to the straight of third cutter T3 (angle cutting tool)
Diameter and length are preset in due course；
Step 10: determining cutter T3 revolving speed, feeding, cutting-in in process according to third cutter T3 (angle cutting tool)；
Step 11: establishment processing trial cut program, until sealed precision hole and Hole chamfering are worked into final size；
It is needed before programming,
It according to the depth in sealed precision hole, bottom chamfer, calculates: the execution when processing sealed precision hole and bottom chamfer
Program axialy offset value and execution program radial offset value；
Program axialy offset value and execution will be executed in the depth and bottom chamfer program in establishment processing sealed precision hole
Program radial offset value is configured；
According to sealed precision hole top chamfer, calculate: execution program axialy offset value when process bottom chamfer with hold
Line program radial offset value；
Program axialy offset value will be executed in the top chamfer program in establishment processing sealed precision hole and will execute program diameter
It is configured to bias；
According to the required precision of sealing hole, bottom chamfer smoothness requirements, top chamfer smoothness requirements, determines and be arranged
Fortunately the machining accuracy value that program is executed in overall process is processed；
Step 12: according to revolving speed, feeding, cutting-in and the step 11 that trial cut effect adjusts in process
Parameter value；
Part program is worked out, until sealed precision hole and Hole chamfering are worked into final size.
In some embodiments, a kind of aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining method, its step are as follows:
Step 1: clamping parts；
Wherein, the non-processing position of part has positioning reference plane, is positioned using positioning reference plane, part is clamped solid
Rotating table of numerical control machine is scheduled on (comprising pressing plate, the spiral shell for gripping part in the rotating table of numerical control machine
Nail, nut attachment) predeterminated position, position to be processed is sealed precision hole and Hole chamfering, and Hole chamfering is that sealed precision hole bottom is fallen
Angle and sealed precision hole top chamfer；
Step 2: determining according to diameter D=φ 12.5H11mm in sealed precision hole, depth H=4mm and processing just hole when institute
Need bit diameter D1=φ 8mm, length L1=20mm；
Step 3: requiring according to step 2, the first cutter T1 (drill bit) is determined；
Step 4: determining cutter T1 (drill bit) revolving speed S1=800- in process according to the first cutter T1 (drill bit)
1500turn_mn, feeding F1=50-100mm_mn, depth 1-3mm is bored every time；
Step 5: determining milling cutter processing diameter according to diameter D=φ 12.5H11mm in sealed precision hole, depth H=4mm
T2=6mm, length L2=40mm；
Step 6: determining processing milling according to sealed precision hole bottom chamfer α=80 °, Ra0.8 μm of bottom chamfer finish
Knife bottom sword chamfering is 80 °, bottom sword finish is Ra0.8 μm；
Step 7: determining to step 6 requirement according to step 5 and disposably processing sealed precision hole and sealed precision hole
Second cutter T2 (angle cutting tool) specification of bottom chamfer are as follows: Countersink D6R0H40L2.3 80deg is (wherein,
Countersink is rose reamer, and D6 represents cutter diameter as 6mm, and R0 represents bottom back chipping, and H40 represents cutter length as 40mm,
L2.3 represents the axial value of chamfering bottom sword and represents chamfering as 2.3mm (A=2.3mm), 80deg as 80 °)；
Step 8: determining cutter T2 revolving speed S2=7000- in process according to the second cutter T2 (angle cutting tool)
8000turn_mn, feeding F2=500-800mm_mn, cutting-in Ap2=0.2-0.4mm；
Step 9: determining third knife according to sealed precision hole top chamfer β=120 °, Ra0.8 μm of top chamfer finish
Third knife when the chamfering of cutter bottom sword is 120 °, processes top when having T3 (angle cutting tool) processing sealed precision hole top chamfer
The finish for having the bottom T3 sword is Ra0.8 μm；
Wherein, due to being in addition open area at the top of sealed precision hole, for this purpose, to the straight of third cutter T3 (angle cutting tool)
Diameter and length preset (disposable third cutter T3 (angle cutting tool) specification for processing sealed precision hole top chamfer of selection in due course
Are as follows: Countersink D 10R0H20L1.5120deg (wherein, Countersink is rose reamer, D10 represent cutter diameter as
10mm, R0 represent bottom back chipping, and H20 represents cutter length as 20mm, and L1.5 represents the axial value of chamfering bottom sword as 1.5mm (F=
1.5mm), 120deg represents chamfering as 120 °)；
Step 10: determining cutter T3 revolving speed S2=7000-8000turn_ in process according to third cutter T3 (milling cutter)
Mn, feeding F2=500-800mm_mn, cutting-in Ap2=0.2-0.4mm；
Step 11: establishment processing trial cut program, until sealed precision hole and Hole chamfering are worked into final size；
It is needed before programming,
It according to the depth H=4mm in sealed precision hole, bottom chamfer α=80 °, calculates: in processing sealed precision hole and bottom
Execution program axialy offset B=Tan40 ° A=Tan40 ° × 2.3=1.93mm of value when chamfering, and execute program radial offset
Value C=H+A=4+2.3=6.3mm；
Program axialy offset value and execution will be executed in the depth and bottom chamfer program in establishment processing sealed precision hole
Program radial offset value is configured；
According to sealed precision hole top chamfer β=120 °, calculate: the execution program axialy offset when processing top chamfer
E=Tan60 °F=Tan60 ° × 1.5=2.59mm of value, and executing program radial offset value is F=1.5mm；
Program axialy offset value will be executed in the top chamfer program in establishment processing sealed precision hole and will execute program diameter
It is configured to bias；
According to required precision D=φ 12.5H11mm, Ra0.8 μm of the bottom chamfer smoothness requirements, top chamfer of sealing hole
Ra0.8 μm of smoothness requirements, the machining accuracy value for determining and setting the execution program in processing overall process is 0.005mm；
The trial cut program segment for working out processing is as follows:
Program segment 1 (boring just hole) is as follows:
(Drilling Deep Hole.17)
N7002 S1200 M03
N7003 G0 Z29.5
N7004 G1 Z19.5 F80
N7005 Z15.
N7006 G1 Z19.5 F1000
N7007 G1 Z17.
N7008 G1 Z13.125 F80
N7009 G1 Z19.5 F1000
N7010 G1 Z15.125
N7011 G1 Z11.875 F80
***
Program segment two (machining accuracy sealing hole and bottom chamfer) is as follows:
(Profile Contouring.30)
N25681 S8000 M03
N25682 G0 X32.554 Y73.384 Z57.258
N25683 G0 Z27.258
N25684 G1 Z17.258 F300
N25685 G1 X32.844 Y73.761 F800
N25686 X33.163 Y74.177
N25687 G3 X32.978 Y75.579 I32.369 J74.786
N25688 G3 I31.J73.
N25689 G3 X31.575 Y75.394 I32.369 J74.786
N25690 G1 X30.967 Y74.6
***
Program segment three (machining accuracy sealing hole top chamfer) is as follows:
(Profile Contouring.8)
N25997 S7300 M03
N25998 G0 X31.839 Y72.319 Z57.5
N25999 G0 Z27.5
N26000 G1 Z17.5 F300
N26001 G1 X32.366 Y72.607 F650
N26002 X32.717 Y72.798
N26003 G3 X33.115 Y74.155 I32.237 J73.676
N26004 G3 X28.885 Y71.845 I31.J73.F520
N26005 G3 X33.115 Y74.155 I31.J73.
***
Step 12: according to revolving speed, feeding, cutting-in and the step 11 that trial cut effect adjusts in process
Parameter value；
Wherein,
Cutter T1 (drill bit) revolving speed S1=1000turn_mn, feeding F1=50mm_mn, depth 1mm is bored every time；
Cutter T2 revolving speed S2=7500turn_mn, feeding F2=500mm_mn, cutting-in Ap2=0.2mm；
Cutter T3 revolving speed S2=7000turn_mn, feeding F2=500mm_mn, cutting-in Ap2=0.3mm；
Part program is worked out, until sealed precision hole and Hole chamfering are worked into final size；
The trial cut program segment for working out processing is as follows:
Program segment 1 (boring just hole) is as follows:
(Drilling Deep Hole.17)
N7002 S1000 M03
N7003 G0 Z29.5
N7004 G1 Z19.5 F50
N7005 Z15.5
N7006 G1 Z19.5 F1000
N7007 G1 Z16.5
N7008 G1 Z14.F50
N7009 G1 Z19.5 F1000
N7010 G1 Z15.
N7011 G1 Z13.F50
***
Program segment two (machining accuracy sealing hole and bottom chamfer) is as follows:
(Profile Contouring.30)
N25699 S7500 M03
N25700 G0 X32.554 Y73.384 Z57.303
N25701 G0 Z27.303
N25702 G1 Z17.303 F300
N25703 G1 X32.844 Y73.761 F500
N25704 X33.163 Y74.177
N25705 G3 X32.978 Y75.579 I32.369 J74.786
N25706 G3 I31.J73.
N25707 G3 X31.575 Y75.394 I32.369 J74.786
N25708 G1 X30.967 Y74.6
***
Program segment three (machining accuracy sealing hole top chamfer) is as follows:
(Profile Contouring.8)
N26075 S7000 M03
N26076 G0 X31.839 Y72.319 Z57.
N26077 G0 Z27.
N26078 G1 Z17.F300
N26079 G1 X32.366 Y72.607 F500
N26080 X32.717 Y72.798
N26081 G3 X33.115 Y74.155 I32.237 J73.676
N26082 G3 X28.885 Y71.845 I31.J73.F400
***
Finally it should be noted that: the above embodiments are merely illustrative of the technical solutions of the present invention, but protection of the invention
Range is not limited thereto, and anyone skilled in the art in the technical scope disclosed by the present invention, can be thought easily
It is modified or replaceed to various equivalent, these, which are modified or replaceed, should all be included within the scope of the present invention.
Claims (10)
1. a kind of aluminium alloy sealed precision hole and Hole chamfering high-efficiency machining method, which comprises the following steps:
It is determining to process required bit diameter, length when just hole according to the diameter in sealed precision hole, depth, and determine the first cutter
The revolving speed of T1 and the first cutter, feeding and brill are deep；
According to the diameter in sealed precision hole, depth, processing angle cutting tool diameter, length are determined；According to sealed precision hole bottom
Chamfering, bottom chamfer finish determine processing angle cutting tool bottom sword chamfering, bottom sword finish, and determine disposable add
Work goes out the revolving speed of the second cutter T2 and the second cutter T2 of sealed precision hole and sealed precision hole bottom chamfer, feeds, cuts
It is deep；
According to sealed precision hole top chamfer, top chamfer finish, determines and fallen at the top of third cutter T3 processing sealed precision hole
The finish of the bottom third cutter T3 sword when the chamfering of cutter bottom sword when angle, processing top, cutter T3 revolving speed in process,
Feeding, cutting-in；
According to the parameter of the first cutter T1, the second cutter T2 and third cutter T3, trial cut program is processed in establishment, and according to trial cut journey
Sequence processes part；
Based on trial cut program composition part program, until the sealed precision hole of part and Hole chamfering are worked into final size.
2. the method according to claim 1, wherein further include:
According to the depth H=4mm in sealed precision hole, bottom chamfer α=80 °, confirmation: in processing sealed precision hole and bottom chamfer
When execution program axialy offset value B be 1.93mm, and execute program radial offset value C be 6.3mm.
3. according to the method described in claim 2, it is characterized by further comprising:
In the depth and bottom chamfer program in establishment processing sealed precision hole, program axialy offset value will be executed and execute program
Radial offset value is configured.
4. according to the method described in claim 3, it is characterized by further comprising:
According to sealed precision hole top chamfer β=120 °, confirm that the execution program axialy offset value E when processing top chamfer is
2.59mm, and executing program radial offset value F is 1.5mm.
5. according to the method described in claim 4, it is characterized by further comprising:
Program axialy offset value will be executed when working out the top chamfer program in processing sealed precision hole and execution program is radially inclined
Value is set to be configured.
6. according to the method described in claim 5, it is characterized by further comprising:
Be φ 12.5H11mm according to the required precision D of sealing hole, Ra0.8 μm of bottom chamfer smoothness requirements, top chamfer it is bright and clean
Degree requires Ra0.8 μm, and the machining accuracy value for determining and setting the execution program in processing overall process is 0.005mm.
7. the method according to claim 1, wherein wherein:
First cutter T1 is drill bit, the revolving speed S1=800-1500turn_mn of the first cutter T1, feeding F1=50-100mm_mn,
Depth 1-3mm is bored every time.
8. the method according to claim 1, wherein further include:
Second cutter T2 is angle cutting tool.
9. the method according to claim 1, wherein further include:
In process, the second cutter T2 revolving speed S2=7000-8000turn_mn, feeding F2=500-800mm_mn, cutting-in
Ap2=0.2-0.4mm.
10. method described in any one of -9 according to claim 1, which is characterized in that further include:
Third cutter T3 is angle cutting tool, revolving speed S2=7000-8000turn_mn, the feeding F2=500- of third cutter T3
800mm_mn, cutting-in Ap2=0.2-0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584952.5A CN110340614B (en) | 2019-07-01 | 2019-07-01 | High-efficiency machining method for aluminum alloy sealing precision hole and hole chamfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910584952.5A CN110340614B (en) | 2019-07-01 | 2019-07-01 | High-efficiency machining method for aluminum alloy sealing precision hole and hole chamfer |
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| CN111390217A (en) * | 2020-04-15 | 2020-07-10 | 成都飞机工业（集团）有限责任公司 | Batch boring method for precision holes |
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| CN111390217B (en) * | 2020-04-15 | 2021-08-03 | 成都飞机工业（集团）有限责任公司 | Batch boring method for precision holes |
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