CN109894817A - A kind of Sharp features processing method - Google Patents
A kind of Sharp features processing method Download PDFInfo
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- CN109894817A CN109894817A CN201910201133.8A CN201910201133A CN109894817A CN 109894817 A CN109894817 A CN 109894817A CN 201910201133 A CN201910201133 A CN 201910201133A CN 109894817 A CN109894817 A CN 109894817A
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Abstract
The present invention discloses a kind of Sharp features processing method, numerical control processing suitable for the fragile materials part Sharp features such as the flexible materials such as paper honeycomb, aluminum honeycomb and foam, it is in the part by numerical control process such as honeycomb, foam, the method processed using subregion, the profile other than corner region is first processed when processing parts profile, profile reserves certain machining allowance in corner region；Before processing corner region profile, increase the support for being greater than corner region, corner region and its machining allowance is kept to stablize support, and cutting depth direction subregion is processed, finally process corner region profile bottom margin, Profile allowance and support milling together, to realize the numerical control processing of wedge angle class honeycomb parts.This method fully considers the processing performance of corner region, effectively reduces corner region tearing, deformation and other issues, avoids the failure of part, improve the qualification rate of part.
Description
Technical field
The present invention relates to adding for the material parts such as honeycomb, foam in numerical-control processing method more particularly to aerospace equipment
Work method belongs to CAD/CAM/CAPP technical field.
Background technique
The structural member of the materials such as honeycomb and foam is the component part of aerospace equipment of new generation, is mostly used for aircraft
Wing interlayer or unmanned plane mainly play support and loss of weight.Currently, a kind of processing method of honeycomb, foaming structure part is
It is pasted in tooling with double faced adhesive tape, Sharp features profile mainly uses slotting cutter to process.Due to aircraft, spacecraft knot
Structure demand, there are the difficult machining feature such as wedge angle, such part outlines to be generally triangle or quadrangle, numerical control for honeycomb parts
When processing type face and profile, corner region easily occurs the tearing of core lattice, is crushed or even falls off.Foam belongs to fragile material, point
Angular zone is easy to happen broken and falls off.Therefore, for honeycomb and foam pieces the characteristics of, study the processing side of its Sharp features
Method, the processing quality for improving part are of great significance.
By consulting existing patent and academic paper, content identical with this patent is found no.
Summary of the invention
The object of the present invention is to provide a kind of numbers for the fragile materials Sharp features such as the flexible materials such as honeycomb and foam
The processing method for the problems such as control processing, improves part Sharp features processing quality, reduces Sharp features breakage, falls off, deforms.
The technical solution adopted in the present invention first is that:
A kind of processing method of Sharp features, which is characterized in that the part with Sharp features is processed, the processing of profile subregion, first
Break corner feature is processed with outer profile, then processes Sharp features region；When processing Sharp features, first roughing Sharp features wheel
Exterior feature is then finished to Sharp features profile, guarantees that allowance for finish is less than or equal to cutter maximum cutting width.
When the processing Sharp features profile, cutting width is greater than cutting depth.
When the processing Sharp features profile, the processing of cutting depth direction subregion, cutting depth direction bottom retains surplus
Individually processing.
When the processing Sharp features profile, Sharp features and its machining allowance bottom keep stablizing support.
When the processing Sharp features profile, the mode of common milling is supported to process profile region surplus and blank.
When the processing Sharp features profile, cutter path is single direction feed, i.e., from inside parts to wedge angle direction
The tool path pattern of processing.
Sharp features rapidoprint of the invention refers to that part material is the composite materials honeycomb such as aramid fiber paper honeycomb, other are non-
In the materials such as the metal materials such as metal material honeycomb, aluminum honeycomb honeycomb, foam, ceramic matric composite.
The Sharp features refer to two profiles present in design of part while or tangent line or tangent plane folder when profile
Angle is less than or equal to 90 °.
The Sharp features are not less than 3 times of part thickness to two profile side extended distances respectively from wedge angle point for part
The region of distance.
The technical solution adopted in the present invention second is that:
A kind of Sharp features processing method, which is characterized in that the only single-sided process part processing with Sharp features includes as follows
Step:
Step 1: blank is retained on platen；
Step 2: processing part type face, then roughing parts profile first；
Step 2: other outer region contours of finishing break corner, corner region retains more than the processing no more than Tool in Cutting width
Amount；
Step 3: using the profile side of the non-corner region of part as positioning datum, in part corner region machining allowance position bottom
Supporting block is added, guarantees that part is integrally not in stable holding state, part is immobilizated in tooling, guarantees corner region in nothing
It is held under stress state；
Step 5: precision-machined parts corner region profile, the layering processing of cutting-in direction, complete the processing of part.The present invention is adopted
Technical solution third is that:
A kind of Sharp features processing method, which is characterized in that the two-sided processing part processing with Sharp features includes following step
It is rapid:
Step 1: blank is immobilizated on platen, first the first face of roughing part type face；
Step 2: part corner region and other regional compartmentalizations are processed, firstly, finishing other region contours, corner region
Certain surplus is stayed, then precision-machined parts type face again；
Step 3: using the profile side of the non-corner region of part and processed type face as positioning datum, in part corner region
Supporting block is added in machining allowance position bottom, and part is immobilizated in tooling, guarantees that corner region is held under unstress state；
Step 4: rough milling the second face of part type face, precision-machined parts corner region profile；
Step 5: processing remaining region contour of part, the processing of part is completed in precision-machined parts type face.
The beneficial effects of the present invention are:
It is processed by using subregion, individually corner region is finished, ensure that Sharp features processing quality；By increasing wedge angle
Region supports, fixing area, increase corner region rigidity, reduce wedge angle tearing risk；In corner region machining allowance portion
Position bottom surface retains part and does not cut off, and individually processes, reduces destruction of the cutting force to part Sharp features；By above method,
Sharp features part passing rate of processing is improved, part quality problem is avoided.
Detailed description of the invention
The present invention is further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the part Sharp features region for retaining process surplus, and wherein 1-1 is process surplus, 1-2 zero
Part Sharp features region.
Fig. 2 is a kind of Sharp features processing method flow chart.
Fig. 3 is a kind of Sharp features contour machining knife rail direction schematic diagram, and wherein 3-1 and 3-2 is respectively Sharp features wheel
Wide process tool course bearing.
Fig. 4 is a kind of Sharp features machining allowance and positioning and clamping positioning schematic diagram, and wherein 1-1 is that Sharp features are processed
Cheng Yuliang, 4-1 are part, and 4-2 is machining blanks, and 4-3,4-4 and 4-5 are position block.
Specific embodiment
Specific implementation of the patent mode is illustrated with reference to the accompanying drawings and examples, but the invention patent and unlimited
In this example.
Embodiment 1
A kind of processing method of Sharp features of the present invention, part are aramid paper cellular material, the part with Sharp features, profile
Subregion processing processes break corner feature first with outer profile, then processes Sharp features region；It is first thick to add when processing Sharp features
Work Sharp features profile is then finished to Sharp features profile, guarantees that allowance for finish is less than or equal to cutter maximum cutting width.
When the processing Sharp features profile, cutting width is greater than cutting depth；The processing of cutting depth direction subregion, cutting depth direction
Bottom retains surplus and individually processes；Sharp features and its machining allowance bottom keep stablizing support；By profile region surplus and blank
The mode of common milling is supported to process；Cutter path is single direction feed, i.e., walks from inside parts to what wedge angle direction processed
Knife mode.
Embodiment 2
A kind of Sharp features processing method is processed the only single-sided process part with Sharp features, is included the following steps:
Step 1: blank is retained on platen；
Step 2: processing part type face, then roughing parts profile first；
Step 2: other outer region contours of finishing break corner, corner region retains more than the processing no more than Tool in Cutting width
Amount；
Step 3: using the profile side of the non-corner region of part as positioning datum, in part corner region machining allowance position bottom
Supporting block is added, guarantees that part is integrally not in stable holding state, part is immobilizated in tooling, guarantees corner region in nothing
It is held under stress state；
Step 5: precision-machined parts corner region profile, the layering processing of cutting-in direction, complete the processing of part.
Embodiment 3
As shown in Figure 1,2,3, 4, Step 1: honeycomb blank is immobilizated on platen；
Step 2: the first face of roughing part type face；
Step 3: other region contours are first finished as shown in figure 4, part corner region and other regional compartmentalizations are processed,
Corner region within part cusp 200mm range retains the surplus 1-1 of width 20mm, precision-machined parts type face；
Step 3: as shown in figure 4, passing through the position block in tooling using the profile side of the non-corner region of part as positioning datum
4-3,4-4 and 4-5 and tooling type face locating element；Supporting block is added in part corner region machining allowance position bottom, is protected
Part is demonstrate,proved generally in support fixing state is stablized, part is immobilizated on special tooling, guarantees corner region in unstressed shape
It is held under state；
Step 4: rough milling the second face of part type face；
Step 5: precision-machined parts corner region profile, the processing of corner region contour machining axial direction subregion, first process upper surface portion
Point, then process bottom surface surplus, knife rail direction be out of part side to sharp corner square to 3-1 and 3-2 as shown in Figure 3；
Step 7: precision-machined parts type face after processing remaining region contour of part, completes the processing of Sharp features honeycomb parts.
Part that the present invention does not relate to is same as the prior art or can be realized by using the prior art.
Claims (10)
1. a kind of processing method of Sharp features, which is characterized in that processed to having angular part, the processing of profile subregion, first
Break corner feature is processed with outer profile, then processes Sharp features region；When processing Sharp features, first roughing Sharp features wheel
Exterior feature is then finished to Sharp features profile, guarantees that allowance for finish is less than or equal to cutter maximum cutting width.
2. a kind of processing method of Sharp features as described in claim 1, which is characterized in that process the wedge angle profile of part
When, cutting width is greater than cutting depth.
3. a kind of processing method of Sharp features as described in claim 1, which is characterized in that process the wedge angle profile of part
When, cutting depth direction subregion processing, cutting depth direction bottom retains surplus and individually processes.
4. a kind of processing method of Sharp features as described in claim 1, which is characterized in that the wedge angle of part in process
And its machining allowance bottom keeps stablizing support.
5. a kind of processing method of Sharp features as described in claim 1, which is characterized in that process the wedge angle profile of part
When, support the mode of common milling to process profile region surplus and blank.
6. a kind of processing method of Sharp features as described in claim 1, which is characterized in that process the wedge angle profile of part
When, cutter path is single direction feed, i.e., the tool path pattern processed from inside parts to wedge angle direction.
7. a kind of processing method of Sharp features as described in claim 1, which is characterized in that the Sharp features are nullings
Two profiles present in part structure while or tangent line or tangent plane angle are less than or equal to 90 ° when profile.
8. a kind of processing method of Sharp features as described in claim 1, which is characterized in that the Sharp features are part
It is not less than the region of 3 times of part thickness distances to two profile side extended distances respectively from wedge angle point.
9. the method as described in claim 1, which is characterized in that the only single-sided process part processing with Sharp features includes such as
Lower step:
Step 1: blank is retained on platen；
Step 2: processing part type face, then roughing parts profile first；
Step 2: other outer region contours of finishing break corner, corner region retains more than the processing no more than Tool in Cutting width
Amount；
Step 3: using the profile side of the non-corner region of part as positioning datum, in part corner region machining allowance position bottom
Supporting block is added, guarantees that part is integrally not in stable holding state, part is immobilizated in tooling, guarantees corner region in nothing
It is held under stress state；
Step 5: precision-machined parts corner region profile, the layering processing of cutting-in direction, complete the processing of part.
10. the method as described in claim 1, which is characterized in that the two-sided processing part processing with Sharp features includes such as
Lower step:
Step 1: blank is immobilizated on platen, first the first facial contour of roughing part and type face；
Step 2: part corner region and other regional compartmentalizations are processed, other region contours are finished, corner region is stayed centainly
Surplus, then precision-machined parts type face again；
Step 3: using the profile side of the non-corner region of part and processed type face as positioning datum, in part corner region
Supporting block is added in machining allowance position bottom, and part is immobilizated on special tooling, guarantees corner region under unstress state
Fixing；
Step 4: rough milling the second face of part type face, precision-machined parts corner region profile；
Step 5: processing remaining region contour of part, the processing of part is completed in precision-machined parts type face.
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| CN201910201133.8A CN109894817B (en) | 2019-03-18 | 2019-03-18 | Sharp corner feature processing method |
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| CN102886665A (en) * | 2012-10-23 | 2013-01-23 | 四川科思精密模具有限公司 | Process for protecting sharp corners of edges of part in mold processing |
| CN104668925A (en) * | 2013-12-02 | 2015-06-03 | 昌河飞机工业（集团）有限责任公司 | Numerical control machining method of paper-based honeycomb part |
| CN105855821A (en) * | 2016-05-18 | 2016-08-17 | 燕山大学 | Precise machining method for nanometer twin crystal cubic boron nitride micro turning tool |
| CN105904164A (en) * | 2016-06-08 | 2016-08-31 | 广州科莱思诚铝业有限公司 | Metal honeycomb board processing technique |
| CN106624628A (en) * | 2016-11-22 | 2017-05-10 | 江西昌河航空工业有限公司 | Non-chamfer-defective honeycomb core NC machining method |
| JP2018076226A (en) * | 2012-08-30 | 2018-05-17 | 日本碍子株式会社 | Method for manufacturing heat conducting member, manufacturing apparatus of heat conducting member and jig for manufacturing heat conducting member |
| CN109304579A (en) * | 2017-07-26 | 2019-02-05 | 成都飞机工业（集团）有限责任公司 | A kind of long and narrow class beam honeycomb core method of processing parts |
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2019
- 2019-03-18 CN CN201910201133.8A patent/CN109894817B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5619889A (en) * | 1994-10-11 | 1997-04-15 | Fed Corporation | Method of making microstructural surgical instruments |
| JP2018076226A (en) * | 2012-08-30 | 2018-05-17 | 日本碍子株式会社 | Method for manufacturing heat conducting member, manufacturing apparatus of heat conducting member and jig for manufacturing heat conducting member |
| CN102886665A (en) * | 2012-10-23 | 2013-01-23 | 四川科思精密模具有限公司 | Process for protecting sharp corners of edges of part in mold processing |
| CN104668925A (en) * | 2013-12-02 | 2015-06-03 | 昌河飞机工业（集团）有限责任公司 | Numerical control machining method of paper-based honeycomb part |
| CN105855821A (en) * | 2016-05-18 | 2016-08-17 | 燕山大学 | Precise machining method for nanometer twin crystal cubic boron nitride micro turning tool |
| CN105904164A (en) * | 2016-06-08 | 2016-08-31 | 广州科莱思诚铝业有限公司 | Metal honeycomb board processing technique |
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