CN104570947B - A kind of digital control programming method of valve housing series parts - Google Patents
A kind of digital control programming method of valve housing series parts Download PDFInfo
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- CN104570947B CN104570947B CN201510039725.6A CN201510039725A CN104570947B CN 104570947 B CN104570947 B CN 104570947B CN 201510039725 A CN201510039725 A CN 201510039725A CN 104570947 B CN104570947 B CN 104570947B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000011112 process operation Methods 0.000 claims abstract description 14
- 230000008859 change Effects 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 11
- 230000004807 localization Effects 0.000 claims abstract description 3
- 238000003801 milling Methods 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 23
- 238000012805 post-processing Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000001815 facial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 by flange Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
- G05B19/40937—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine concerning programming of machining or material parameters, pocket machining
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- Automation & Control Theory (AREA)
- Valve Housings (AREA)
Abstract
The present invention relates to a kind of digital control programming method of valve housing series parts, after mainly solving the change of valve housing series parts dimensional parameters, numerical control program establishment task amount is big, and the duplication of labour is more, the low problem of programming efficiency.The present invention determines blank model according to minimum envelope principle；Using Position with One Plane and Two Holes localization method, outer cylinder Special Fixture for Machining is designed.The machining process route of valve housing part is determined on this basis.According to the function of valve housing part, plurality of properties parameter and its internal relation are determined, using the equation and plurality of properties parameter list of UG softwares, set up valve housing part template model, complete machining simulation, generate nc program code.After the change of part template Model Series characterisitic parameter updates, process operation is edited and inherited, cutter location file is quickly generated again, post-processed, generate numerical control code.To improve the capability of fast response of production task.
Description
Technical field
The invention belongs to machine-building Computerized Numerical Control processing technology field, and in particular to a kind of numerical control of valve housing series parts
Programmed method.
Background technology
With the fast development of China's aeronautical and space technology, the new space flight overall structure part of valve housing class has been obtained more
Plus widely use.Valve housing part is used to control direction, pressure and the flow of fluid, mainly by flange, cavity, seal groove,
The features such as screwed hole are constituted.Flange primarily serves sealing and connection function, generally there is connection screwed hole and sealing thereon
Seal groove；Cavity is mainly on the basis of proof strength, plays a part of to control liquid or gas flow.The requirement of its connection surface
Quality is high, while flange surface has position degree requirement with chamber axis, Set and Positioning requirement is high；Seal groove requirement finishing on flange
Work.Housing cavity is revolution feature, and boring process is used during processing, and housing profile carries out milling for curved surface using ball endmill
Processing.
Valve housing class part, machining feature is more, retrofits many, and substantially, numerical control program establishment task amount is big, weight for plurality of properties
Multiple work is more, and programming efficiency is low.
The content of the invention
The object of the invention is directed to valve housing series parts numerical control programming task greatly, and the duplication of labour is more, and programming efficiency is low
Problem, it is proposed that the digital control programming method of valve housing series parts numerical control programming efficiency can be improved.
To achieve these goals, the technical scheme is that：
A kind of digital control programming method of valve housing series parts, blank model is determined according to minimum envelope principle；Using
Position with One Plane and Two Holes localization method and the clamp for machining of external cylindrical surface, determine machining process route；According to the function of valve housing part
Effect, determines valve housing plurality of properties parameter and its internal relation, equation and determination valve housing system using UG softwares
Row characterisitic parameter, sets up valve housing part template model, completes machining simulation, generates nc program code；Valve shell
The change of body part template Model Series characterisitic parameter is updated, and edits and inherit process operation, and cutter location file is quickly generated again, is passed through
Post processing, generates numerical control code；Wherein：The outer cylinder of valve housing part plus fixture：By clamp base 1, left positioner method
Blue wall 2, Right side support flange wall 3, screw thread rotation clamps combination unit 4 and constitutes；It is characterized in that：The method includes following specific
Step：
Step 1：Determine the blank model of valve housing part：Determine blank model according to minimum envelope principle；
Step 2：Rough mill, finish-milling upper half face of cylinder profile 12, rough mill, finish-milling lower half face of cylinder profile 13, rough mill, finish-milling circle
Six upset operation models on special fixture are needed during the seam crossing profile 14 of cylinder middle part altogether；
When the outer cylinder of valve housing part is processed, valve housing part is using the end face of large flange 17 and left positioner flange
The face of wall 2 overlaps, and is positioned by screw using two symmetrical holes on the end face of large flange 17, in the middle of left positioner flange wall 2
To facilitate boring cutter to be processed valve housing inner bore of part, the end face of small flange 16 clamps combination unit 4 by screw thread rotation for perforate
Clamp；
Step 3：Design the machining process route of valve housing part：The machining process route is divided into five major parts, its
In：
The roughing of (a) valve housing inner bore of part：Blanking, half smart car blank left side 9, blank right side 10, bore,
Expansion, boring housing part endoporus 11；
The external cylindrical surface profile roughing of (b) valve housing part：Upper half face of cylinder profile 12 is rough milled, lower half cylinder is rough milled
Facial contour 13, rough mills seam crossing profile 14 in the middle part of the face of cylinder, rough mills the end face of upper flange 15, endoporus；This part manufacturing procedure needs
The special fixture designed using step 2；
C () is heat-treated；
The finishing of (d) valve housing inner bore of part：The small end face of flange 16 of finish-milling, the end face of finish-milling large flange 17, seal groove,
Threaded hole, finish-milling small end face, drilling, tapping, right boring valve housing inner bore of part 11；
The external cylindrical surface profile finishing of (e) valve housing part：Finish-milling upper flange 15) end face, bore bottom outlet, tapping, digging
Groove, finish-milling endoporus, internal rounding；Finish-milling upper half face of cylinder profile 12, finish-milling lower half face of cylinder profile 13, in the finish-milling face of cylinder
Portion seam crossing profile 14；This processing part needs to use the special fixture that step 2 is designed；
Step 4：Set up valve housing part template model：
By analyzing function and the effect of valve housing part, valve housing plurality of properties parameter and its inherent pass are determined
System, function is combined using the equation and valve housing plurality of properties parameter of UG softwares, sets up valve housing part template mould
Type；
Step 5：Complete digital control processing cutter spacing file, machining simulation, the post processing of valve housing part template model, generation
Nc program code；
On the basis of step 4, adding for the corresponding machining feature of valve housing part template model is set respectively according to step 2
Work method, cutter, to knife point, coordinate system and assisted geometric, setting process technological parameter, and generate cutter path, cutter location file,
Post processing, generates numerical control code；
Step 6：The change of part template Model Series characterisitic parameter updates, and edits and inherit process operation, quickly secondary again
Into cutter location file, post processing generates numerical control code.
The substantive distinguishing features of protrusion of the invention and significant beneficial effect are：
A kind of digital control programming method of valve housing series parts of the present invention, when the series of valve housing part template model
Characterisitic parameter and correlation are changed when updating, and by editing and inheriting process operation, the modification for being capable of achieving NC programs is rung
Should, improve the automaticity of series parts nc program establishment.To solve series parts, numerical control program establishment task amount
Greatly, the duplication of labour is more, the low problem of programming efficiency, improves the capability of fast response of production task.
Brief description of the drawings
Fig. 1 is the three dimensional structure diagram of valve housing part of the present invention；
Fig. 2 is valve housing part blank calculation diagram of the present invention；
Fig. 3 is the special fixture three dimensional structure diagram of valve housing series parts of the present invention；
Fig. 4 is the upper surface manufacturing procedure jig installation position schematic diagram of valve housing series parts of the present invention；
Fig. 5 is the lower surface manufacturing procedure jig installation position schematic diagram of valve housing series parts of the present invention；
Fig. 6 is the middle transition Surface Machining operation jig installation position schematic diagram of valve housing series parts of the present invention；
Fig. 7 is the upper flange end face manufacturing procedure jig installation position schematic diagram of valve housing series parts of the present invention；
Fig. 8 is the end face manufacturing procedure illustraton of model of valve housing series parts of the present invention；
Fig. 9 is the housing cavity manufacturing procedure illustraton of model of valve housing series parts of the present invention；
Figure 10 is the flange and outer surface feature model figure of valve housing series parts of the present invention；
Figure 11 is the parametric variable schematic diagram of valve housing series parts master module front section view of the present invention；
Figure 12 is the parametric variable schematic diagram of Figure 11 A-A sectional views (small flange)；
Figure 13 is the parametric variable schematic diagram of Figure 11 B-B sectional views (upper flange)；
Figure 14 is the parametric variable schematic diagram of Figure 11 C-C sectional views (large flange)；
Figure 15 is valve housing series parts structural representation of the present invention；
Modeling left surface structural representation after Figure 16 part families dd=66, dk=50, dq=50 driving；
Modeling left surface structural representation after Figure 17 part families dd=71, dk=55, dq=55 driving；
Figure 18 valve housing series parts numerical control programming flow charts of the present invention；
Figure 19 is the cutter track track of cylinder upper surface of the present invention Milling Process simulation；
Figure 20 valve housing series parts operation omniselector sectional drawings of the present invention；
Figure 21 is updated and is defined lathe coordinate system interface；
Figure 22 is the cutter track track of internal bore boring operating simulation of the present invention.
Specific embodiment
Specific implementation of the invention is described further below in conjunction with the accompanying drawings.
Step 1：Determine the blank model of valve housing part
The blank of valve housing part as shown in Figure 1 is round bar, and material is duralumin, hard alumin ium alloy, and processing device therefor is common
Three axis machining center, non-turnning and milling is compound, five axles and Multishaft processing center or other specialized working machine tool of machine；Contain according to minimum former
Then determine blank model.
As shown in Fig. 2 the blank diameter parameter for defining valve housing part is md, the minimum diameter of blank envelope part is joined
Number ma, the big a diameter of da of end flanges external diameter, a diameter of dl of upper flanges external diameter, casing center axis and upper flanges end face away from
It is h for calculating the intermediate parameters of blank diameter from being lp, there can be below equation to set up：
ma:H=h:(da/2+lp) (formula 1)
h2=(dl/2)2+(da/2+lp)2(formula 2)
Be can obtain by formula 1, formula 2：Ma=[(dl/2)2+(da/2+lp)2]/[(dl/2)2+(da/2+lp)2] (formula 3)
Take md=round (ma+4)
Md=round ([(dl/2)2+(da/2+lp)2]/[(dl/2)2+(da/2+lp)2]+4) (formula 4)
Round is bracket function in (formula 3), (formula 4)；And the specification of combination marketing material, taken near specification
Value determines blank diameter.
Step 2：Design specialized fixture
As shown in figure 3, the outer cylinder processing of valve housing part needs design specialized fixture；Special fixture is by clamp base
1, left positioner flange wall 2, Right side support flange wall 3, screw thread rotation clamps combination unit 4 and constitutes；Rough mill, finish-milling upper half cylinder
Facial contour 12, rough mills, finish-milling lower half face of cylinder profile 13, rough mill, finish-milling face of cylinder middle part seam crossing profile 14 when need altogether
Three upset operation models on special fixture；
When the outer cylinder of the outer cylinder processing valve housing part of valve housing part is processed, valve housing part is using big
The end face of flange 17 overlaps with the face of left positioner flange wall 2, and is carried out by screw using two symmetrical holes on the end face of large flange 17
Positioning, the central aperture of left positioner flange wall 2 to facilitate boring cutter to be processed valve housing inner bore of part, the end face of small flange 16
Combination unit 4 is clamped by screw thread rotation to clamp；
As shown in figs. 4-7, operation 4, operation 14 are processed, and operation 5, operation 15 are processed, and operation 6, operation 16 are processed, operation 7,
Operation 13 is processed, the external cylindrical surface upper surface manufacturing procedure model 5, external cylindrical surface lower surface manufacturing procedure mould of valve housing part
Type 6, external cylindrical surface middle part joint face manufacturing procedure model 7, upper flange surface manufacturing procedure model 8 the end face of large flange 17 respectively with
Left positioner flange wall 2 overlaps, and two location holes of the end face of large flange 17 is passed through by bolt and nut packing ring fastener, by big method
Blue end face 17 is fastened with left positioner flange wall 2, and small end face flange 16 clamps combination unit 4 and clamps by screw thread rotation.Realize phase
Answer the processing of operation.
Step 3：Design the machining process route of valve housing part
Such as Fig. 6, shown in Fig. 8-10, the mechanical processing technique route of valve housing part is broadly divided into five major parts：
(1) roughing of valve housing inner bore of part
Blanking, half smart car blank left side 9, blank right side 10, brill, expansion, boring shell inner hole 11；
(2) the external cylindrical surface profile roughing of valve housing part
Upper half face of cylinder profile 12 is rough milled, lower half face of cylinder profile 13 is rough milled, seam crossing profile 14 in the middle part of the face of cylinder is rough milled,
Rough mill the end face of upper flange 15, endoporus；This part manufacturing procedure needs to use the special fixture that step 2 is designed；
(3) it is heat-treated；
(4) finishing of valve housing inner bore of part
The small end face of flange 16 of finish-milling, the end face of finish-milling large flange 17, seal groove, threaded hole, finish-milling small end face, drilling,
Tapping, right boring shell inner hole 11；
(5) the external cylindrical surface profile finishing of valve housing part
The end face of finish-milling upper flange 15, brill bottom outlet, tapping, grooving, finish-milling endoporus, internal rounding；The finish-milling upper half face of cylinder
Seam crossing profile 14 in the middle part of profile 12, finish-milling lower half face of cylinder profile 13, the finish-milling face of cylinder；This processing part needs to use step
The special fixture of 2 designs；
Detailed content is shown in Table 1.
The mechanical processing process of the valve housing part of table 1
Step 4：Set up valve housing part template model
It is the basis for realizing the quick numerical control programming of valve housing series parts to set up valve housing part template model；Valve
Housing part template model is the three-dimensional series parameterized model comprising serial performance parameter and its internal relation, and establishes zero
Relation between part model and blank model.Can be automatically generated after valve housing part template Model Series performance parameter variations
Valve housing three-dimensional part model and its blank model.On the basis of valve housing part template model, can be according to table 1
Mechanical processing process, completes machining simulation, post processing generation numerical control program code.
(1) series drives the determination of parameter
As shown in Figure 11-Figure 17, according to valve housing part major function be for control the direction of fluid, pressure,
Flow, chooses the driving dimensions of three flange inner diameters respectively as further feature on its each flange of valve housing, on flange
Other sizes as driven size；Other each flange upper screwed hole number, size ensure according to installation bolt is designed for
Bonding strength, chooses the number of each flange upper screwed hole, size and also serves as driving dimensions.The size of seal groove, depth parameter
Also serve as driving feature, for driving the generation of series parts, and set up between blank model size and part model size
Relation (as shown in Figure 2).
(2) name of parameter and relational expression
As shown in Figure 11-Figure 17, according to the classification to parameter institute driving dimensions, it is named to drive with the type information of size
Parameter, realizes the rationalization and standardization of its dimensional parameters name.
Parameter first to valve housing class part is categorized as：Diameter parameters, radius parameter, length parameter, angle
Parameter, number parameter.
Diameter parameters：The revolution parameter of controlling feature, name is followed successively by da, db, dc ...
Radius parameter：The characteristic parameter of chamfering is controlled, name is followed successively by ra, rb, rc ...
Length parameter：The positioning of controlling feature, name is followed successively by la, lb, lc ...
Angle parameter：Control sizing angle, name is followed successively by ja, jb, jc ...
Number parameter：The number of controlling feature, name is followed successively by na, nb, nc ...
Valve housing plurality of properties parameter and its implication description are shown in Table 2.
(3) valve housing part template model is set up
Outline sketch is drawn, according to the defined variable of table 2 and corresponding relation is set up, it is complete by controlling driving dimensions and feature
Into the establishment of valve housing part template model.Figure 15 is the generation example of valve housing series parts, and Figure 16 is dd=66, dk
=50, the modeling left surface structural representation after dq=50 drives, Figure 17 is after dd=71, dk=55, dq=55 drive
Modeling left surface structural representation.
The driving parameter and relational expression of the valve housing part of table 2
Step 5：Complete digital control processing cutter spacing file, machining simulation, the post processing of valve housing part template model, generation
Nc program code
As shown in figure 18, on the basis of step 4, lathe coordinate system, establishment security plane, establishment cutting zone are created several
He Ti, according to the processing method of the corresponding machining feature of step 3 setting valve housing series parts, according to the setting process technique of table 1
Parameter, and cutter track track is generated, processed simulating, verifying, if machining simulation is unsatisfactory for requiring, needs to update in modification
State process.After machining simulation meets requirement, then post-processed, generated numerical control code.Figure 19 is shown on valve housing part
The cutter track track of semi-cylindrical profile rough milling.
Step 6：The change of part template Model Series characterisitic parameter updates, and edits and inherit process operation, quickly secondary again
Into cutter location file, post processing generates numerical control code.
(1) part model updates with the change of blank model
Blank modeling paints section, to large flange end face using the stretching order of UG by grass of the x-y plane of the frame of reference
Stretching distance is li；It is lf-li to small end face of flange stretching distance.Defined with the topological criteria of part model with blank model
Positions of materials and volume that digital control processing to be cut off, size and the position of blank part, blank zero are determined by state modulator
The size of part and position can make corresponding change with the change of Parameters of The Parts.
Its driving dimensions of Figure 16 and Figure 17 and topological structure have significant difference, and blank dimension is with the change of accessory size
Respective change, and minimum containing diameter of the blank diameter all the time than part model is larger.The parameter of blank and part model
Changing control can ensure that cutter track track does not produce unnecessary idle stroke.
In click UG toolbars【Application module】Button, clicks on【Processing】Button, into UG factory interfaces, operation now
As shown in figure 20, the numerical control programming of newly-generated valve housing part grasps the digital control processing based on part template to omniselector sectional drawing
Re-start generation.
(2) operation is edited and processed
The parameter of part template process is defined and realized by numerical value or expression formula, part geometry body, cutting geometry
Body, security plane are updated by the definition of the Parameter relation formula of table 2；Lathe coordinate system is redefined to facilitate part system
Numerical control code automatically generates after the change of row characterisitic parameter.
Described in detail by taking the process operation of the first step as an example below.
1. Cutter coordinate system is redefined
Double-click coordinate system【1-1】, click on【MCS】's【Coordinate system】Lathe coordinate system is specified in button, ejection as shown in figure 21
Dialog box, choosing the center of circle of blank operation model is used to position, and the parameter za for having named then is input into coordinate dialog box, so
After click on【It is determined that】Button, completes digital control processing coordinate system【1-1】Redefine.
After part plurality of properties Parameters variation, programming coordinates system redefines as shown in table 3 in process operation.
Table 3 redefines coordinate system operation table
Redefining for numerical control processing and operating is carried out according to each step operation listed by table 3, operating procedure reference coordinate system 1-1 is carried out
Operation.
2. process operation is redefined.
According to the process of Figure 20 operation omniselectors, process operation is updated again, in click tools column【Generation knife
Rail】Button, the cutter track track after generation part plurality of properties Parameters variation.
(3) after plurality of properties Parameters variation, the post processing and its contrast of part process operation
Boring endoporus process operation operation is chosen, process operation cutter path is as shown in figure 22.Before plurality of properties Parameters variation,
Numerical control code file afterwards as shown in table 4, the machined parameters of post processing file twice is clear that by contrasting
Difference, it was demonstrated that plurality of properties Parameters variation can realize part Series Design and its digital control processing fast programming.
Table 4 post-processes the file table of comparisons
Claims (1)
1. a kind of digital control programming method of valve housing series parts, blank model is determined according to minimum envelope principle；Using one
Face holes localization method and the clamp for machining of external cylindrical surface, determine machining process route；Function according to valve housing part is made
With, determining valve housing plurality of properties parameter and its internal relation, the equation and determination valve housing using UG softwares are serial
Characterisitic parameter, sets up valve housing part template model, completes machining simulation, generates nc program code；Valve housing
The change of part template Model Series characterisitic parameter updates, and edits and inherit process operation, cutter location file is quickly generated again, after
Treatment, generates numerical control code；Wherein：The outer cylinder of valve housing part plus fixture：By clamp base (1), left positioner method
Blue wall (2), Right side support flange wall (3), screw thread rotation clamps combination unit (4) composition；It is characterized in that：The method is included such as
Lower specific steps：
Step 1：Determine the blank model of valve housing part：Determine blank model according to minimum envelope principle；
Step 2：Rough mill, finish-milling upper half face of cylinder profile (12), rough mill, finish-milling lower half face of cylinder profile (13), rough mill, finish-milling circle
Six upset operation models on special fixture are needed during seam crossing profile (14) of cylinder middle part altogether；
When the outer cylinder of valve housing part is processed, valve housing part is using large flange (17) end face and left positioner flange wall
(2) face overlaps, and is positioned by screw using two symmetrical holes on large flange (17) end face, left positioner flange wall (2)
To facilitate boring cutter to be processed valve housing inner bore of part, small flange (16) end face is clamped and combined central aperture by screw thread rotation
Device (4) is clamped；
Step 3：Design the machining process route of valve housing part：The machining process route is divided into five major parts, wherein：
The roughing of (a) valve housing inner bore of part：Blanking, half smart car blank left side (9), blank right side (10), bore,
Expansion, boring housing part endoporus (11)；
The external cylindrical surface profile roughing of (b) valve housing part：Upper half face of cylinder profile (12) is rough milled, the lower half face of cylinder is rough milled
Profile (13), rough mills face of cylinder middle part seam crossing profile (14), rough mills upper flange (15) end face, endoporus；This part manufacturing procedure
The special fixture for needing to use step 2 to design；
C () is heat-treated；
The finishing of (d) valve housing inner bore of part：Finish-milling small flange (16) end face, finish-milling large flange (17) end face, seal groove,
Threaded hole, finish-milling small end face, drilling, tapping, right boring valve housing inner bore of part (11)；
The external cylindrical surface profile finishing of (e) valve housing part：Finish-milling upper flange (15) end face, bore bottom outlet, tapping, grooving,
Finish-milling endoporus, internal rounding；Finish-milling upper half face of cylinder profile (12), finish-milling lower half face of cylinder profile (13), the finish-milling face of cylinder
Middle part seam crossing profile (14)；This processing part needs to use the special fixture that step 2 is designed；
Step 4：Set up valve housing part template model：
By analyzing function and the effect of valve housing part, valve housing plurality of properties parameter and its internal relation are determined, profit
Function is combined with the equation and valve housing plurality of properties parameter of UG softwares, valve housing part template model is set up；
Step 5：Digital control processing cutter spacing file, machining simulation, the post processing of valve housing part template model are completed, numerical control is generated
Processing program code；
On the basis of step 4, the processing side of the corresponding machining feature of valve housing part template model is set respectively according to step 2
Method, cutter, to knife point, coordinate system and assisted geometric, setting process technological parameter, and generate cutter path, cutter location file, locate afterwards
Reason, generates numerical control code；
Step 6：The change of part template Model Series characterisitic parameter is updated, and edits and inherit process operation, and knife is quickly generated again
Position file, post processing generates numerical control code.
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| CN105773081B (en) * | 2016-05-05 | 2017-09-08 | 江苏科技大学 | A kind of integral processing method of asymmetric anchor lip |
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