CN107350754A - Processing method with oblique ring shaped slot outer barrel - Google Patents
Processing method with oblique ring shaped slot outer barrel Download PDFInfo
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- CN107350754A CN107350754A CN201710815196.3A CN201710815196A CN107350754A CN 107350754 A CN107350754 A CN 107350754A CN 201710815196 A CN201710815196 A CN 201710815196A CN 107350754 A CN107350754 A CN 107350754A
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- outer barrel
- green body
- shaped slot
- crude green
- oblique
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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Abstract
The present invention relates to the processing method with oblique ring shaped slot outer barrel, by the characteristic and Analysis of Machinability to material, and according to factors such as process equipment, facility, environmental aspects, formulates rational parts machining process.The processing technology to the process such as equipment, cutter and heat treatment and Environmental security etc. by being controlled, utilize the processing of the axle coarse milling of turnning and milling three and five axle semifinishings, after part heat treatment, rational installation way and strict grinding parameter by certain process strategies and are taken using numerical control lathe and numerical control grinding again, obtain the measured tiltedly ring shaped slot outer barrel of matter.
Description
Technical field
The present invention relates to a kind of processing method of undercarriage outer barrel, more particularly to one kind to be used to carry the oblique ring shaped slot of thin wall type
The processing method of outer barrel, belongs to field of machining.
Background technology
With greatly developing for China's Aviation Industry, more and more higher is required to the design performance of aircraft, is machined therewith
Technical requirements will also be synchronized and innovated, there is provided more reliable, more efficient processing method.With rising and falling with oblique ring shaped slot
Exemplified by the outer barrel part of frame, usually, the outer barrel includes body 1, and body 1 is provided with the oblique ring with the central axis out of plumb of body 1
Type groove 2, the oblique auricle extended to outer body is provided with body close to one end of oblique ring shaped slot 2, and the oblique auricle is provided with oblique ear
Film perforation 3, the other end of body are provided with the toggle auricle vertical with oblique auricle, and toggle auricle is provided with torsion arm aperture 4, its
In, oblique auricle hole center and oblique ring shaped slot central axis are on the same line.The part overall dimensions are larger, oblique ring-like groove location
It is only 3.7 mm at the wall thickness minimum of periphery, belongs to typical thin-walled lumen type part, design of part poor rigidity is yielding, is the aircraft
One of main load-carrying member of undercarriage, realize that undercarriage control acts on, be high-precision matching part, size and position of related features requirement
Very tight, the part is key component, and material is 30CrMnSiNi2A unimach, because of the increase of technological design difficulty, to this zero
One of difficult point of part is exactly to solve the processing of the oblique ring-like groove location of thin wall type, and model is provided for the processing of such structural member, can
It is widely used in the mechanical processing industries such as Aero-Space, there is stronger social and economic benefit.For manufacturing the outer barrel of outer barrel
Crude green body is generally forging part.
Research for the processing technology of such part inclined shaft neck position, belongs to and processes first, and label experience is borrowed without any：The
First, part is processed using horizontal Machining centers, main shaft overhangs and have to be larger than 800mm, and machine tool accessories can not meet to require, and not
It is stable；Secondth, part is processed using lathe, grinding machine, because of the appearance structure of the part, centering benchmark can not be specified, size and thick
Rugosity can not ensure.Therefore it must adopt new technology, new method, break through conventional processing method.The present invention uses three axles first
Cartesian coordinate（X-axis, Y-axis, Z axis）And five axle（X-axis, Y-axis, Z axis, C axles, B axle）The axle program of numerical programming three and five axle programs,
Milling-lathe machining center is recycled to complete the roughing and semifinishing of part；In addition after part after Overheating Treatment, numerical control is utilized
Car and numerical control grinding machine tool take part rational installation way and control strict grinding parameter etc., formulate rational technique stream
Journey, it ensure that the quality of product and its every design requirement.
The content of the invention
In view of the shortcomings of the prior art, the purpose of the present invention is：A kind of be used for the oblique ring shaped slot outer barrel of thin-walled is provided
Machining process, to solve safety and quality problems appeared in the oblique ring shaped slot part machinery process of thin-walled, and energy
Enough improve its processing efficiency.
In order to solve the above-mentioned technical problem, technical scheme is as follows：Processing method with oblique ring shaped slot outer barrel,
It is process by outer barrel crude green body, the outer barrel crude green body includes body, and one end of body is provided with oblique auricle crude green body, the other end of body
Provided with torsion auricle crude green body, comprise the following steps：
S1, outer barrel crude green body is taken, carry out line confirmation, it is ensured that after outer barrel crude green body zero defect, distinguished at the both ends of outer barrel crude green body body
Process clamping hole；It is cylindrical, second cylindrical and the 3rd that first be arranged in order along body length direction is processed on body again
It is cylindrical；
S2, by step S1 first cylindrical, the second cylindrical and on the basis of the 3rd is cylindrical, toggle auricle on outer barrel crude green body body
Endoporus is processed at one end；
S3, using three axle cartesian coordinates and five axial coordinates distinguish the axle coarse milling program of numerical programming three and the finishing of numerical control five-axle half
Engineering sequence, recycle milling-lathe machining center to carry out profile to outer barrel crude green body and rough mill, process oblique auricle, oblique ring shaped slot and toggle
Auricle simultaneously makes them meet appearance and size requirement, then carries out semifinishing so that in the center and oblique ring shaped slot in oblique auricle hole
Mandrel line is on the same line；Wherein, 2-2.5mm surpluses are stayed；
S4, outer barrel crude green body is quenched successively, temper, it is thick to obtain the essence of outer barrel half that tensile strength is 1570-1770MPa
Base；
S5, process on half smart crude green body of outer barrel it is cylindrical and the 5th is cylindrical along body length direction the 4th, as following process base
It is accurate；
S6, the aperture boring internal thread in endoporus；Torsion arm aperture and half smart crude green body of outer barrel are entered close to the end face of toggle auricle
Row numerical control mill finishes；
S7, half smart crude green body of outer barrel and fixture fitted together so that the part of the smart crude green body right side of outer barrel half and fixture is installed
Face is brought into close contact, then outer barrel crude green body is fixed on fixture by torsion arm aperture；
The 4th is cylindrical and the 5th is cylindrical in S8, centering step S5, ensures jerk value≤0.05, checks the angle of oblique ring shaped slot,
Oblique auricle left end processes center hole, is processed in clamping fixture head right-hand member cylindrical；Wherein, the central axis of the center hole with tiltedly
The central axis of ring shaped slot overlaps；
S9, carry out numerical control lathe finishing：It is cylindrical with lathe four paws claw clamping device chuck right-hand member, head into outer barrel with tailstock centre
The center hole of half smart crude green body left end, machined surface at centering clamping fixture head, ensure jerk value≤0.05；Oblique auricle hole center is checked to arrive
The distance of oblique ring-like groove center, finishes oblique ring shaped slot spot size, and for follow-up numerical control grinding, finally processing is ready；
S10, carry out numerical control grinding finishing：Half smart crude green body of outer barrel is torn open from step S9 together with fixture on numerical control turning machine
Go out, and be co-mounted on numerical control grinding machine tool, ensure that oblique ring shaped slot central axis is located on horizontal plane；Add at centering clamping fixture head
Work face, ensure jerk value≤0.05；Tiltedly ring-like groove face jerk value≤0.05, then check oblique auricle hole center to oblique ring is checked simultaneously
The distance at type groove center, finally carry out grinding from emery wheel so that oblique ring-like groove location meets processing dimension requirement.
First cylindrical in step S1, second cylindrical and the 3rd cylindrical cut by turner obtains, cutting parameter is：Rotating speed n=
30-40 r/min, the amount of feeding F=20-30 mm/min, cutting depth 0.8-1.2mm.
The angle of oblique ring shaped slot central axis and outer barrel central axis is 12.37 °.
In step S3, it is from φ 32- φ 63 indexable knife, cutting parameter during rough milling：N=800-1200 r/min,
F=500-800 mm/min, cutting depth 1.5mm；The alloy knifes of φ 20- φ 10 are selected during semifinishing, cutting parameter is：n=
1500 r/min, F=800mm/min, cutting depth 0.5mm.
In step S4, first by outer barrel crude green body after austenitizing temperature is incubated 120-130 minutes, then oil cooling to room temperature,
Temper 180 minutes under the conditions of 255-295 DEG C again.Preferably, the austenitizing temperature is 900 DEG C.
Cutting parameter is in step S9：Rotating speed 25-30r/min, amount of feeding 0.05-0.15mm/r, cutting depth 0.15-
0.25mm.Preferably, surplus is 0.5mm after numerical control Vehicle Processing in step S9.
In step S10, it is ground from white fused alumina emery wheel, cutting parameter is：Grinding wheel speed 315-730r/min, work
Part rotating speed 14-88r/min；Wheel traverse roughing is 0.025mm/ strokes, is finished as 0.005-0.01mm/ strokes；
Axial feeding 3-6mm/r.
The step of also including to carrying out numerical control mill finishing and surface treatment with oblique ring shaped slot outer barrel after step S10.
The present invention be directed to a kind of method that the oblique ring shaped slot outer barrel of thin-walled is processed, pass through the characteristic to material and processing
Performance evaluation, and according to factors such as process equipment, facility, environmental aspects, formulate rational parts machining process.The processing technology
By being controlled to the process such as equipment, cutter and heat treatment and Environmental security etc., processed using the axle coarse milling of turnning and milling three
With five axle semifinishings, after part heat treatment, by certain process strategies and taken using numerical control lathe and numerical control grinding again
Rational installation way and strict grinding parameter, it is ensured that product quality, realize the processing of the product.
Brief description of the drawings
Fig. 1 is outer barrel crude green body structural representation.
Fig. 2 is outer barrel finished product structure schematic diagram.
Fig. 3 is the outer barrel crude green body structural representation after step S1 processing in the first embodiment of the invention.
Fig. 4 is the outer barrel crude green body half section structure diagram after step S2 processing in the first embodiment of the invention.
Fig. 5 is the outer barrel crude green body structural representation after step S3 processing in the first embodiment of the invention.
Fig. 6 is the smart crude green body structural representation of outer barrel half after step S5 processing in the first embodiment of the invention.
Fig. 7 is the smart crude green body structural representation of outer barrel half after step S6 processing in the first embodiment of the invention.
Fig. 8 is that the state after half smart crude green body of outer barrel fits together with fixture in the first of the invention embodiment is illustrated
Figure.
Fig. 9 is the smart crude green body structural representation of outer barrel half after step S8 processing in the first embodiment of the invention.
Figure 10 is the enlarged drawing of I part in Fig. 9.
Figure 11 be in the first of the invention embodiment in step S9 and S10 half smart crude green body of outer barrel and fixture in corresponding lathe
On view.
Figure 12 is that half smart crude green body of outer barrel fits together rear jig part with fixture in the first embodiment of the invention
Sectional view.
In figure, 1- bodies, the oblique ring shaped slots of 2-, the oblique auricle holes of 3-, 4- torsion arm aperture, 5- endoporus, 6- claws, 7- holes orientation
Auricle mandrel, 8- apotting spindles, 9- balancing weights, 10- clamp bodies, 11- center holes, 12- tailstock centres, a- outer barrel central axis,
B- machine tool chief axis center lines.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted
Under condition, the feature in embodiment and embodiment in the present invention can be mutually combined.For sake of convenience, hereinafter as occurred
" on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, do not act limiting to structure
It is set for using.
Processing method with oblique ring shaped slot outer barrel, the outer barrel are process by outer barrel crude green body, the outer barrel crude green body bag
Body 1 is included, one end of body 1 is provided with oblique auricle crude green body, and the other end of body 1 is provided with torsion auricle crude green body, comprised the following steps：
S1, outer barrel crude green body is taken, carry out line confirmation, it is ensured that after outer barrel crude green body zero defect, distinguished at the both ends of outer barrel crude green body body
Process clamping hole；The cylindrical A of first be arranged in order along body length direction, the second cylindrical B and are processed on body again
Three cylindrical C；
Each work post turner, borer device therefor must clean up before part is processed in this step, without miscellaneous bits；Cutting tool will
Sharp and smooth, each work post is in part flows through journey, because volume is larger, pays attention to colliding with；
S2, on the basis of the first cylindrical A, the second cylindrical B and the 3rd cylindrical C in step S1, the toggle on outer barrel crude green body body
Auricle processes endoporus 5 at one end；
S3, using three axle cartesian coordinates and five axial coordinates, the axle of numerical programming three rough mills program and numerical control five-axle semifinishing respectively
Program, recycle milling-lathe machining center to carry out profile to outer barrel crude green body and rough mill, process oblique auricle, oblique ring shaped slot 2 and toggle
Auricle simultaneously makes them meet appearance and size requirement, then carries out semifinishing so that the center in oblique auricle hole 3 and oblique ring shaped slot 2
Central axis is on the same line；Wherein, 2-2.5mm surpluses are stayed；Complete part angle, size characteristic；
It can be positioned during this by the way of the top of a folder one；
S4, outer barrel crude green body is quenched successively, temper, it is thick to obtain the essence of outer barrel half that tensile strength is 1570-1770MPa
Base；
S5, the 4th cylindrical D being distributed from left to right along body length direction and is processed on the body of half smart crude green body of outer barrel
Five cylindrical E, as following process benchmark；It should be noted that the 4th cylindrical D and the 5th cylindrical E here with step S1
First cylindrical A, the second cylindrical B and the 3rd cylindrical C do not conflict, and position range can have publicly-owned region；
Because part is by deformation being present after heat treatment, processing excircles benchmark is re-started, processing is provided for subsequent process steps
Benchmark, centering benchmark；
S6, the aperture boring internal thread in endoporus 5, it is convenient half smart crude green body of outer barrel is connected through a screw thread with fixture；To turning round
Arm of force hole 4 and half smart crude green body of outer barrel carry out numerical control mill finishing close to the end face of anti-torque arm auricle；
S7, half smart crude green body of outer barrel and fixture fitted together so that the part of the smart crude green body right side of outer barrel half and fixture is installed
Face is brought into close contact, then outer barrel crude green body is fixed on fixture by torsion arm aperture 4, prevents from swinging；
4th cylindrical D and the 5th cylindrical E in S8, centering step S5, ensure jerk value≤0.05, check the angle of oblique ring shaped slot,
Center hole is processed in oblique auricle left end and clamp for machining right-hand member is cylindrical, is prepared for subsequent step；Wherein, the center hole
Central axis overlaps with the central axis of oblique ring shaped slot；
S9, carry out numerical control Vehicle Processing：With lathe four paws claw clamping device right-hand member chuck, it is thick to head into the essence of outer barrel half with tailstock centre
The center hole of base left end, machined surface at centering clamping fixture head, ensure jerk value≤0.05；Check oblique auricle hole center to tiltedly it is ring-like
The distance of groove center, the oblique ring shaped slot spot size of semifinishing, it is ready for the finishing of follow-up numerical control grinding；
S10, carry out numerical control grinding processing：Half smart crude green body of outer barrel is split out from step S9 together with fixture on numerical control turning machine,
And be co-mounted on numerical control grinding machine tool, ensure that oblique ring shaped slot central axis is located on horizontal plane；Processed at centering clamping fixture head
Face, ensure jerk value≤0.05；Oblique auricle hole center is checked again to the distance of oblique ring-like groove center, is finally carried out from emery wheel
Machining, obtain the processing dimension with oblique ring-like groove location.
The first cylindrical A, the second cylindrical B and the 3rd cylindrical C are cut by turner and obtained in step S1, and cutting parameter is：Turn
Fast n=30-40 r/min, the amount of feeding F=20-30 mm/min, cutting depth 0.8-1.2mm.
The angle of oblique ring shaped slot central axis and outer barrel central axis is 12.37 °.In oblique ring-like groove center and oblique auricle hole
The distance of the heart is 700 ± 0.1mm.The distance of oblique ring-like groove center to outer barrel right-hand member is 1611.16mm.
In step S3, it is from φ 32- φ 63 indexable knife, cutting parameter during rough milling：N=800-1200 r/min,
F=500-800 mm/min, cutting depth 1.5mm；From φ 20- φ 10 indexable knife, cutting parameter during semifinishing
For：N=1500 r/min, F=800mm/min, cutting depth 0.5mm.
Step S3 idiographic flows are as follows：
Preparing method and flow：Information is said in basic parameter setting → program header form setting → program tail form setting → program
Bright → generation postpositive disposal file → is added in digital control processing postpositive disposal masterplate → generated numerical control program code → to numerical control
Program verify → part is processed.
In step S3, one of three axle programs are as follows（Remarks：One of program, illustrate）：
;%_N_66A1_MPF ... ... ... ... ... ... ... programs 1：
N1 TLCH1 (" mill_D32R8c ", 0.0) ... ... ... ... ... ... tool changing " mill_D32R8c "
N2 TLPREP1 ... ... ... ... ... ... ... ... ... ... ... empty tool change arm cutter
N3MCMILLS1 ... ... ... ... ... ... ... ... ... ... ... milling mode
N4 G54 ... ... ... ... ... ... ... ... ... ... ... ... specify Cutter coordinate system G54
N5 TLZTRANS (0,1.1) ... ... ... ... ... ... ... ... Cutter coordinate systems skew 1.1
The cleaning of N6 M126 ... ... ... ... ... ... ... ... ... ... ... centre frames is opened
N7 M3=08 ... ... ... ... ... ... ... ... ... ... ... coolant is opened
N8 G90 G64 ... ... ... ... ... ... ... ... ... ... ... absolute values mode and continuous path
Pattern
N9 M1=57 ... ... ... ... ... ... ... ... ... ... ... centre frame unclamps
N10 G0 G90 C1=90 ... ... ... ... ... ... ... ... ... C axles go to 90 °
N11 M1=56 ... ... ... ... ... ... ... ... ... ... ... centre frame clamps
Cutter is moved on to safe distance by N12 Z1=350. ... ... ... ... ... ... ... ... ... ...
M3=03 ... the main shaft of the S3 of the Z1 of the Y1 of N13 G0 X1=1704.303=5.614=350.=1200 rotates and reaches cutting point
N14 Z1=245.
N15 G1 Z1=127.405 F800.
N16 G94 G1 Z1=124.405
The processing of I-2.511 J-15.802 ... ... the programs of the Y1 of N17 G3 X1=1686.092=- 7.101
……
N2870 X1=1728.736 Y1=142.1 I-.132 J16.
N2871 G0 Z1=350.
N2872 M01 ... ... ... ... ... ... ... ... ... ... ... procedure selections stop
In step S3, one of five axle programs are as follows（Remarks：One of program illustrates）：
;%_N_226A1_MPF ... ... ... ... ... ... ... ... ... ... programs 1：
N1 TLCH1 (" Mill_D40R8 ", -90) ... ... ... ... ... ... ... tool changing " mill_D32R8c "
N2 TLPREP1 ... ... ... ... ... ... ... ... ... ... ... empty cutter in tool change arm
N3 MCMILLS1 ... ... ... ... ... ... ... ... ... ... ... milling mode
The zero point setting of N4 MCC1ZERO ... ... ... ... ... ... ... ... ... ... ... C axles
F800. ... the main shafts of the S3 of the M3 of the M3 of N5 G00 G90 G54 G64 C1=0=08=03=1200 rotate and reached
Knife point
N6 MILL5AON ... ... ... ... ... ... ... ... ... ... ... open five axle translation functions
TLZTRANS (0,0.84) ... ... ... ... ... ... ... ... ... Cutter coordinate systems skew 0.84
N7 X1=190.263 Y1=45.362 Z1=-1570.26 B1=-12.305 C1=-6.142
……
C1=- 4326.142 ... the program of the B1 of the Z1 of the Y1 of N7273 X1=132.044=- 35.376=- 1560.509=- 12.305
Processing
N7274 G00 X1=186.444 Y1=-41.229 Z1=-1548.575 B1=-12.305 C1=-4326.142
N7275 M3=09 M3=05
The skew of TLZTRANS ... ... ... ... ... ... ... ... ... ... ... Cutter coordinate systems is cancelled
N7277 MILL5AOF ... ... ... ... ... ... ... ... ... ... close five axle translation functions
N7278 TLCOSOF ... ... ... ... ... ... ... ... ... ... cancel selection tool coordinate system
The zero point setting of N7279 MCC1ZERO ... ... ... ... ... ... ... ... ... ... C axles
N7280 G53 X1=700. D0
N7281 G53 Z1=1200.
N7282 B1=-90.
N7283 M30
In step S4, first outer barrel crude green body is incubated under austenitizing temperature, then oil cooling is to room temperature, then in 255-295 DEG C of bar
Temper under part.
Cutting parameter is in step S9：Rotating speed 25-30r/min, amount of feeding 0.05-0.15mm/r, cutting depth 0.15-
0.25mm。
In step S10, it is ground from white fused alumina emery wheel, cutting parameter is：Grinding wheel speed 315-730r/min, workpiece
Rotating speed 14-88r/min；Wheel traverse roughing is 0.025mm/ strokes, is finished as 0.005-0.01mm/ strokes；Axle
To amount of feeding 3-6mm/r.
The step of also including to carrying out numerical control mill finishing and surface treatment with oblique ring shaped slot outer barrel after step S10.
Because the thread tolerance on fixture is larger, fixture is caused gap error to be present, it is preferable that right after fixture installs
Part and fixture are checked together, correct fixture right-hand member chuck again.
By the axle of milling-lathe machining center three and five-axis milling, the clamping times of workpiece are reduced, are saved substantial amounts of special and logical
With technological equipment, milling is carried out using milling-lathe machining center, and eliminates the resetting error brought by multiple clamping, it collects
Milling, drilling, ream, boring, tapping and thread milling, advantageously ensure that the position accuracy demand of each working position.
According to the constitutional detail angle character, the characteristics of making full use of the axle of turnning and milling three and five axles, lathe is given full play in process
Advantage with two rotary shafts, swing B axle, and be used cooperatively C axle rotational positionings, can not only shorten cutter cantilevered length but also
The processing of part angle feature can be completed, be programmed and implement to operate, carry out tiltedly ring-like groove location roughing milling and
Semifinishing milling.
Turnery processing pushes up mode using a folder one, and center hole is made at the auricle of one end, and the other end designs a set of special-purpose vehicle tool
（Eccentric clamping）.Car tool uses welding manner, and is connected through a screw thread, it is ensured that clamping is firm（Right-hand member tactical diameter is about
900mm, existing large-scale lathe disclosure satisfy that requirement）, it is then big in horizontal Machining centers amendment chuck and center hole, rear utilization
Car four paws claw clamping device right-hand member chuck, left end top part center hole, processed position is converted into along axis revolving structure,
So it is achieved that continuous turning process.
Grinding needs to pass through grinding twice and a lonneal, it is ensured that product quality.Grinding adds for the first time
Work largely eliminates part deformation, while produces internal stress after big surplus grinding, subsequently in 190 ± 100 °C of temperature
The lower time for being kept for 4 hours or so will eliminate internal stress, then refine the tiltedly ring-like final surplus of groove location.During grinding, grinding
Parameter is extremely important, on the one hand to avoid parameter is improper from causing part to overheat, or even burn；On the other hand, the parameter meeting of transition
Workpiece is deformed, influences product quality, therefore, grinding process strictly controls grinding parameter.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the present invention, without
For limiting the scope of the present invention, after the present invention has been read, the various equivalent form of values of the those skilled in the art to the present invention
Modification each fall within the application appended claims limited range.
Claims (8)
1. the processing method with oblique ring shaped slot outer barrel, is process, the outer barrel crude green body includes body by outer barrel crude green body（1）,
Body（1）One end be provided with oblique auricle crude green body, body（1）The other end be provided with torsion auricle crude green body, it is characterised in that including such as
Lower step：
S1, outer barrel crude green body is taken, carry out line confirmation, it is ensured that after outer barrel crude green body zero defect, distinguished at the both ends of outer barrel crude green body body
Process clamping hole；It is cylindrical that first be arranged in order along body length direction is processed on body again（A）, it is second cylindrical（B）
It is cylindrical with the 3rd（C）；
It is S2, cylindrical with step S1 first（A）, it is second cylindrical（B）It is cylindrical with the 3rd（C）On the basis of, on outer barrel crude green body body
Toggle auricle processes endoporus at one end（5）；
S3, using three axle cartesian coordinates and five axial coordinates distinguish the axle coarse milling program of numerical programming three and the finishing of numerical control five-axle half
Engineering sequence, recycle milling-lathe machining center to carry out profile to outer barrel crude green body and rough mill, process oblique auricle, oblique ring shaped slot（2）And torsion
Arm of force auricle simultaneously makes them meet appearance and size requirement, then carries out semifinishing so that oblique auricle hole（3）Center with tiltedly it is ring-like
Groove（2）Central axis on the same line；Wherein, 2-2.5mm surpluses are stayed；
S4, outer barrel crude green body is quenched successively, temper, it is thick to obtain the essence of outer barrel half that tensile strength is 1570-1770MPa
Base；
S5, process on half smart crude green body of outer barrel it is cylindrical along body length direction the 4th（D）It is cylindrical with the 5th（E）, as follow-up
Machining benchmark；
S6, in endoporus（5）Aperture boring internal thread；To torsion arm aperture（4）With half smart crude green body of outer barrel close to toggle auricle
End face carries out numerical control mill finishing；
S7, half smart crude green body of outer barrel and fixture fitted together so that the part of the smart crude green body right side of outer barrel half and fixture is installed
Face is brought into close contact, then passes through torsion arm aperture（4）Outer barrel crude green body is fixed on fixture；
The 4th is cylindrical in S8, centering step S5（D）It is cylindrical with the 5th（E）, ensure jerk value≤0.05, check the angle of oblique ring shaped slot
Degree, processes center hole in oblique auricle left end, is processed in clamping fixture head right-hand member cylindrical；Wherein, the central shaft of the center hole
Line overlaps with the central axis of oblique ring shaped slot；
S9, carry out numerical control lathe finishing：It is cylindrical with lathe four paws claw clamping device chuck right-hand member, head into outer barrel with tailstock centre
The center hole of half smart crude green body left end, machined surface at centering clamping fixture head, ensure jerk value≤0.05；Oblique auricle hole center is checked to arrive
The distance of oblique ring-like groove center, finishes oblique ring shaped slot spot size, and for follow-up numerical control grinding, finally processing is ready；
S10, carry out numerical control grinding finishing：Half smart crude green body of outer barrel is torn open from step S9 together with fixture on numerical control turning machine
Go out, and be co-mounted on numerical control grinding machine tool, ensure that oblique ring shaped slot central axis is located on horizontal plane；Add at centering clamping fixture head
Work face, ensure jerk value≤0.05；Tiltedly ring-like groove face jerk value≤0.05, then check oblique auricle hole center to oblique ring is checked simultaneously
The distance at type groove center, finally carry out grinding from emery wheel so that oblique ring-like groove location meets processing dimension requirement.
2. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that first in step S1
It is cylindrical（A）, it is second cylindrical（B）It is cylindrical with the 3rd（C）Cut and obtained by turner, cutting parameter is：Rotating speed n=30-40 r/
Min, the amount of feeding F=20-30 mm/min, cutting depth 0.8-1.2mm.
3. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that oblique ring shaped slot central shaft
The angle of line and outer barrel central axis is 12.37 °.
4. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that in step S3, rough mill
It is from φ 32- φ 63 indexable knife, cutting parameter during processing：Rotating speed n=800-1200 r/min, amount of feeding F=500-800
Mm/min, cutting depth 1.5mm；It is from φ 20- φ 10 alloy knife, cutting parameter during semifinishing：Rotating speed n=1500
R/min, amount of feeding F=800mm/min, cutting depth 0.5mm.
5. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that in step S4, first will
Outer barrel crude green body is after austenitizing temperature is incubated 120-130 minutes, and then oil cooling is to room temperature, then in 255-295 DEG C of condition next time
Fire processing 180 minutes.
6. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that ginseng is cut in step S9
Number is：Rotating speed 25-30r/min, amount of feeding 0.05-0.15mm/r, cutting depth 0.15-0.25mm.
7. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that in step S10, choosing
It is ground with white fused alumina emery wheel, cutting parameter is：Grinding wheel speed 315-730r/min, workpiece rotational frequency 14-88r/min；Emery wheel
Traverse feed roughing is 0.025mm/ strokes, is finished as 0.005-0.01mm/ strokes；Axial feeding 3-6mm/r.
8. the processing method according to claim 1 with oblique ring shaped slot outer barrel, it is characterised in that also wrapped after step S10
The step of including to carrying out numerical control mill finishing and surface treatment with oblique ring shaped slot outer barrel.
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