CN108762194B - A kind of numerical-control processing method of general-purpose type vacuum fraise jig - Google Patents
A kind of numerical-control processing method of general-purpose type vacuum fraise jig Download PDFInfo
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- CN108762194B CN108762194B CN201810531327.XA CN201810531327A CN108762194B CN 108762194 B CN108762194 B CN 108762194B CN 201810531327 A CN201810531327 A CN 201810531327A CN 108762194 B CN108762194 B CN 108762194B
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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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- 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
- G05B19/4155—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 programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
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Abstract
The present invention provides a kind of numerical-control processing methods of general-purpose type vacuum fraise jig, are divided into auxiliary line wheat flour and make to process two parts with numerical control programming.Establish coordinate system: the two hole lines of centres are projected to digital-to-analogue bottom surface as X-axis by two datum holes of design, and the central point of left side datum hole is that origin establishes coordinate system；It establishes secondary surface: being focused to find out the part partitioning face as quasi spline foundation in the geometric figure of digital-to-analogue, it copies in newly-built geometric figure collection " secondary surface ", further according to cutter groove of hiding, enclosed slot and groove actual depth, the divisional plane of cutter groove of hiding, seal groove and air channel is made respectively.During auxiliary line wheat flour is made, with Element Design element, the secondary surface of each Working position is produced, exempts a large amount of duplicate tooling type faces and fills work；In NC Machining Process, by subject type face and each air channel and seal groove separate machined, the tool chatter caused by curvature changes repeatedly is worn and the irregular defect of notch edges when avoiding processing subject type face.
Description
Technical field
The present invention relates to a kind of numerical-control processing method of general-purpose type vacuum fraise jig, such tooling is used for aluminium alloy sheet
The positioning of class part clamps and processing.
Background technique
As shown in Fig.1 and Fig.2, in the type vacuum fraise jig overall structure, subject type face and positioning pin play part positioning
Effect, air channel and seal groove are combined with air pump, are formed the closed area of vacuum between part and fixture, are utilized atmospheric pressure
Part is pressed on tooling surface by power difference, plays clamping action.
Summary of the invention
Since the active component of the type tooling is subject type face, vacuum tightness is formed by between seal groove and air channel
Region, then remained in process it is excessive will lead to part and be bonded imprecision with tooling surface, integral position changes, and leads
Cause position inaccurate；If occurring over-cutting in process, it will lead to and seal not tight, pressure difference deficiency, in process
The possible play of part, generates dangerous.Again because the type tooling clamping force size is directly proportional to vacuum area area, designer's meeting
Increase air channel and sealing slot number as far as possible, needs to choose machining area and processing rail when technologist being caused to program repeatedly
Mark carries out a large amount of duplicate tooling type faces and fills work, improves the probability of error, reduce programming efficiency.When filled-type face due to
Accuracy selection is excessively high to will lead to filling failure, generallys use the charging error precision of 0.05mm, tiny curvature is necessarily caused to become
Change, the abrasion of the tool chatter caused by curvature changes repeatedly and notch edges are irregular when making to process subject type face lacks
It falls into, increases difficulty for subsequent worker operation, extreme case even needs to fall type face and adds work.
The technical problem to be solved in the present invention is to provide a kind of more reasonable numerical control machining schemes, and numerical control is substantially improved and adds
The establishment efficiency of engineering sequence, and jig main body type face is improved, the accuracy of manufacture of seal groove and air channel reduces add to the greatest extent
Work error enables the tooling to reach the higher accuracy of manufacture.
In order to solve the above problem, the specific technical solution of the present invention is as follows:
A kind of numerical-control processing method of general-purpose type vacuum fraise jig is divided into auxiliary line wheat flour and makees and numerical control programming processing two
Part；
First part's auxiliary line wheat flour is made:
(1) establish coordinate system: general such tooling can design two datum holes, and the two hole lines of centres are projected to digital-to-analogue bottom
As X-axis, the central point of left side datum hole is that origin establishes coordinate system in face；
(2) it establishes secondary surface: being focused to find out the part partitioning face as quasi spline foundation in the geometric figure of digital-to-analogue, it is multiple
It is made into newly-built geometric figure collection " secondary surface ", further according to cutter groove of respectively hiding, enclosed slot and groove actual depth, is made respectively
Hide the divisional plane of cutter groove, seal groove and air channel, in case following process uses.Digital-to-analogue is as shown in Figure 3 after having extracted each secondary surface；
The establishment of second part numerical control program:
(3) numerical control 1: roughing tooling type face removes most of material and stays machining allowance.
(4) numerical control 2: semifinishing tooling type face further removes material and stays machining allowance.
(5) numerical control 3: finishing tooling type face, guarantee type face precision and roughness requirements.
(6) numerical control 4: finishing air channel.
(7) numerical control 5: finishing seal groove.
(8) numerical control 6: cutter groove of hiding is finished.
(9) numerical control 7:, reference holes, dowel hole, venthole, stroke part edge line and allowance line.
Beneficial effects of the present invention: during auxiliary line wheat flour is made, reasonable utilization Element Design element is produced and is respectively added
The secondary surface that station is set exempts a large amount of duplicate tooling type faces and fills work；In NC Machining Process, by subject type face and respectively
Air channel and seal groove separate machined, the abrasion of the tool chatter caused by curvature changes repeatedly when avoiding processing subject type face
The irregular defect with notch edges.
Detailed description of the invention
Fig. 1 is vacuum fraise jig and part schematic diagram.
Fig. 2 is the effective working position schematic diagram of such vacuum fraise jig.
Fig. 3 is to extract digital-to-analogue schematic shapes after each processing secondary surface.
Specific embodiment
Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.
A kind of numerical-control processing method of general-purpose type vacuum fraise jig, steps are as follows:
(1) auxiliary line wheat flour is made:
(1.1) it establishes coordinate system: determining two datum holes, the two datum hole lines of centres are projected into digital-to-analogue bottom surface as X
Axis, the central point of left side datum hole are that origin establishes coordinate system；
(1.2) it establishes monolithic devices face processing secondary surface: being focused to find out in the geometric figure of digital-to-analogue as quasi spline foundation
Part partitioning face, be copied into newly-built geometric figure collection " secondary surface ", be cut to the state that surrounding extends 30mm,
It is named as " type face 0 "；
(1.3) air channel processing secondary surface is established: using bias order that " type face 0 " is auxiliary according to air channel actual depth
Principal surface offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " air channel -3 "；
(1.4) seal groove processing secondary surface is established: using bias order that " type face 0 " is auxiliary according to seal groove actual depth
Principal surface offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " seal groove -4.5 "；
(1.5) cutter groove processing secondary surface of hiding is established: using bias order that " type face 0 " is auxiliary according to cutter groove actual depth of hiding
Principal surface offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " cutter groove -15 of hiding "；
(2) machining control process:
(2.1) numerical control 1: Large size surface is rough milled using Sweeping order in roughing type face, using D50R25 ball
Knife, machined surface select " type face 0 ", it is ensured that all milling is arrived in type face, records Z value；Chipping allowance 0.8mm, Z are uniformly stayed in this processing
The feed speed 6000mm/min of value, 3000 turns/min of lathe revolving speed；
(2.2) numerical control 2: semifinishing type face selects finishing D30R15 ball knife to guarantee processing using Sweeping order
Quality, machined surface select " type face 0 ", and chipping allowance 0.3mm, feed speed 6000mm/min are uniformly stayed in this processing, and lathe turns
Speed, 3000 turns/min；
(2.3) numerical control 3: finishing drum face selects finishing D30R15 ball knife to guarantee processing matter using Sweeping order
Amount, " the type face 0 " made in advance before machined surface selection, this processes not made allowance, completely in place by digital-to-analogue requirement processing, into
Give speed 6000mm/min, 3000 turns/min of lathe revolving speed.
(2.4) numerical control 4: finishing air channel, using Multi-Axis Curve Machine order, as far as possible selection diameter
Slotting cutter of same size is with air channel to greatly improve the processing efficiency, " air channel-made in advance before machined surface selection
3 ", wherein attentional selection Lead and tilt in Tool Axis tabs, processing guidance line options air channel inboard boundary lean on
The side of nearly part, axial feed 0.1mm, feed speed 1000mm/min, 1100 turns/min of lathe revolving speed.
(2.5) numerical control 5: finishing seal groove, using Multi-Axis Curve Machine order, as far as possible selection diameter
Slotting cutter of same size is with seal groove to greatly improve the processing efficiency, " seal groove-made in advance before machined surface selection
4.5 ", wherein attentional selection Lead and tilt in Tool Axis tabs, processing guide line options seal groove inboard boundary
Close to the side of part, axial feed 0.1mm, feed speed 1000mm/min, 1100 turns/min of lathe revolving speed.
(2.6) numerical control 6: finishing cutter groove of hiding, using Multi-Axis Curve Machine order, as far as possible selection diameter
Slotting cutter of same size is with cutter groove of hiding to greatly improve the processing efficiency, " cutter groove-of hiding made in advance before machined surface selection
15 ", wherein attentional selection Lead and tilt in Tool Axis tabs, processing guidance line options hide cutter groove boundary close to zero
The side of part, axial feed 0.2mm, feed speed 1000mm/min, 1100 turns/min of lathe revolving speed.
(2.7) numerical control 7: 5 axis holes of system, using 5 axis positioning pin of Spot Drilling order system and hole pipe screw thread bottom outlet,
Middle hole machined axis should select " Variable Axis " flexible shaft option to ensure that 5 axis holes of processing are correct.
(2.8) numerical control 8: scribing line is crossed using Spot Drilling order.
This method describes the numerical control processing technology scheme of such vacuum fraise jig, passes through reasonable utilization Element Design member
Element, self manufacture go out the secondary surface of each Working position, exempt a large amount of duplicate tooling type faces and fill work；In NC Machining Process
In, by subject type face and each air channel and seal groove separate machined, since curvature changes repeatedly when avoiding processing subject type face
Caused tool chatter abrasion and the irregular defect of each notch edges.
Compared with original processing method, this method is not only saved a large amount of programmings and verification time, during actual processing, is added
Cutter runs smoothly when carefully and neatly done figure face, machined surface quality, and allowing blade replacement interval extends one times of time, illustrates tool wear rate
Decline.Each notch edges processed are neatly smooth, and uniform depth is consistent, and later period worker is greatly reduced and repairs polishing light by hand
Workload improves production efficiency.
Claims (1)
1. a kind of numerical-control processing method of general-purpose type vacuum fraise jig, which is characterized in that steps are as follows:
(1) auxiliary line face is made
(1.1) it establishes coordinate system: determining two datum holes, the two datum hole lines of centres are projected into digital-to-analogue bottom surface as X-axis, a left side
The central point of side datum hole is that origin establishes coordinate system；
(1.2) it establishes monolithic devices face processing secondary surface: being focused to find out zero as quasi spline foundation in the geometric figure of digital-to-analogue
Part divisional plane is copied into newly-built geometric figure collection " secondary surface ", is cut to the state that surrounding extends 30mm, name
For " type face 0 "；
(1.3) air channel processing secondary surface is established: according to air channel actual depth, using bias order by " type face 0 " secondary surface
Offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " air channel -3 "；
(1.4) seal groove processing secondary surface is established: according to seal groove actual depth, using bias order by " type face 0 " secondary surface
Offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " seal groove -4.5 "；
(1.5) cutter groove processing secondary surface of hiding is established: according to cutter groove actual depth of hiding, using bias order by " type face 0 " secondary surface
Offset, obtained secondary surface are saved in geometric figure collection " secondary surface ", are named " cutter groove -15 of hiding "；
(2) machining control process
(2.1) numerical control 1: Large size surface is rough milled using Sweeping order in roughing type face, using D50R25 ball knife, adds
Work face selects " type face 0 ", it is ensured that all milling is arrived in type face, records Z value；This processing uniformly stays chipping allowance 0.8mm, Z value
Feed speed 6000mm/min, 3000 turns/min of lathe revolving speed；
(2.2) numerical control 2: finishing D30R15 ball knife, machined surface selection are selected using Sweeping order in semifinishing type face
Chipping allowance 0.3mm, feed speed 6000mm/min, 3000 turns/min of lathe revolving speed are uniformly stayed in " type face 0 ", processing；
(2.3) numerical control 3: finishing D30R15 ball knife is selected using Sweeping order in finishing drum face, and machined surface selects it
Preceding " the type face 0 " made in advance processes not made allowance, completely in place by digital-to-analogue requirement processing, feed speed 6000mm/min, machine
3000 turns/min of bed revolving speed；
(2.4) numerical control 4: finishing air channel selects diameter and air channel using Multi-Axis Curve Machine order
Slotting cutter of same size, " air channel -3 " made in advance before machined surface selection, wherein selects in Tool Axis tabs
Lead and tilt, processing guidance line options air channel inboard boundary is close to the side of part, axial feed 0.1mm, feeding speed
Spend 1000mm/min, 1100 turns/min of lathe revolving speed；
(2.5) numerical control 5: finishing seal groove selects diameter and seal groove using Multi-Axis Curve Machine order
Slotting cutter of same size, " seal groove -4.5 " made in advance before machined surface selection, is wherein selected in Tool Axis tabs
Lead and tilt is selected, processing guidance line options seal groove inboard boundary is close to the side of part, axial feed 0.1mm, feeding
Speed 1000mm/min, 1100 turns/min of lathe revolving speed；
(2.6) numerical control 6: finishing cutter groove of hiding, and using Multi-Axis Curve Machine order, selects diameter and cutter groove of hiding
Slotting cutter of same size, " cutter groove -15 of hiding " made in advance before machined surface selection, is wherein selected in Tool Axis tabs
Lead and tilt is selected, processing guidance line options hide cutter groove boundary close to the side of part, axial feed 0.2mm, feed speed
1000mm/min, 1100 turns/min of lathe revolving speed；
(2.7) numerical control 7: 5 axis holes of system, using 5 axis positioning pin of Spot Drilling order system and hole pipe screw thread bottom outlet, mesoporous
Processing axis should select " Variable Axis " flexible shaft option to ensure that 5 axis holes of processing are correct；
(2.8) numerical control 8: scribing line is crossed using Spot Drilling order.
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| CN111823028A (en) * | 2019-04-22 | 2020-10-27 | 上海上飞飞机装备制造有限公司 | Standard supporting plate for positioning and clamping parts |
| CN110893556B (en) * | 2019-11-23 | 2021-04-20 | 上海永茂泰汽车零部件有限公司 | Multifunctional milling machine and control method thereof |
| CN111830902B (en) * | 2020-07-31 | 2022-07-12 | 东莞市中泰模具股份有限公司 | Stamping die oil leakage hole manufacturing method, storage medium and CNC (computer numerical control) die machining machine tool |
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| CN103949704B (en) * | 2014-03-26 | 2016-04-27 | 西安西航集团莱特航空制造技术有限公司 | The method for milling of rounding inside and outside the aperture of a kind of conical shell profiled holes on the surface |
| JP5960189B2 (en) * | 2014-04-18 | 2016-08-02 | ファナック株式会社 | Numerical control apparatus and program editing method having machining cycle generation function |
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