CN109507951A - A kind of connecting arc Part Surface Roughness index processing control method - Google Patents
A kind of connecting arc Part Surface Roughness index processing control method Download PDFInfo
- Publication number
- CN109507951A CN109507951A CN201811396473.2A CN201811396473A CN109507951A CN 109507951 A CN109507951 A CN 109507951A CN 201811396473 A CN201811396473 A CN 201811396473A CN 109507951 A CN109507951 A CN 109507951A
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- Prior art keywords
- cutting
- surface roughness
- tool
- trajectory
- connecting arc
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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
- G05B19/19—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32416—Tool information for program to use and needed timing, adapt timing
Abstract
A kind of connecting arc Part Surface Roughness index processing control method of the invention, propose the cutter path planing method of alternately inverted feed and the allowance distribution method based on balanced cutting load, it control effectively to the connecting arcs Part Surface Roughness index such as aero-engine dish axle, it ensure that part processing precision, and parts processing surface quality and processing efficiency are improved, reduce tool wear.This method can be applied in the machined surface roughness norm controlling of all types of parts, have stronger versatility and practicability.
Description
Technical field
The invention belongs to field of aerospace Computerized Numerical Control processing technologies, are related to a kind of connecting arc Part Surface Roughness index
Processing control method.
Background technique
There are difficulty of processing for aircraft engine parts greatly, surface quality is difficult to effectively control, machining accuracy and is difficult to ensure
Problem, the formulation of part process scheme depend on the experience of technical staff mostly, carry out part by way of material object trial-production and add
Work verifying, proving period are long, at high cost.Especially dish axle part seam allowance position requirement on machining accuracy is compared with high, difficulty of processing is big, sternly
The delivery quality of part is affected again.
Surface roughness index is one of the important indicator at dish axle part seam allowance position, is usually neglected in previous process
Slightly to the control of surface roughness index, using conventional processing method, there are the processing such as chatter mark, hair side in part process
Defect, seam allowance portion faces roughness index are unable to satisfy design requirement, and tool wear is serious, and dish axle part is caused to there is processing
The problems such as cost is high, and the process-cycle is long, and product qualification rate is lower.Up to the present, still without disclosed control dish axle
The process of Part Surface Roughness index.
Summary of the invention
The object of the present invention is to provide a kind of connecting arc Part Surface Roughness index processing control methods, to solve disk
The problems such as axis part difficulty of processing is big, surface quality is poor, machining accuracy is difficult to ensure, tool wear is serious.
The present invention provides a kind of connecting arc Part Surface Roughness index processing control method, includes the following steps:
Step 1: feeding numerical quantity using theoretical formula method；
Step 2: determining cutter main cutting edge and main cutting direction；
Step 3: according to etc. surpluses cutting way, and plan according to connecting arc position to be processed the cutting side of first knife
To and Cutting trajectory；
Step 4: according to the Cutting trajectory of previous knife, planning the Cutting trajectory of next knife, the Cutting trajectory of next knife is with before
The Cutting trajectory of one knife it is contrary, until removing whole surpluses, complete Tool in Cutting trajectory planning；
Step 5: chip-load analysis being carried out to the Tool in Cutting track planned, determines and cuts load in cutting process
Lotus distribution situation；
Step 6: according to chip-load distribution situation, adjusting allowance balance ratio according to golden section proportion, revised
Tool in Cutting track afterwards；
Step 7: repeating step 5 and step 6, until chip-load is evenly distributed, allowance balance is reasonable, cooks up optimal
Tool in Cutting track；
Step 8: according to optimal Tool in Cutting track is cooked up, machining being carried out to the connecting arc of part.
In connecting arc Part Surface Roughness index processing control method of the invention, the step 5 specifically:
Chip-load analysis is carried out to the Tool in Cutting track planned with simulation software, obtains cutting force distribution map, root
According to the distribution situation of cutting force in the cutting process shown in cutting force distribution map, cutting force fluctuation on Cutting trajectory is found
Biggish regional location.
In connecting arc Part Surface Roughness index processing control method of the invention, the step 6 specifically:
The machining allowance distribution for treating machining area according to golden section proportion is modified, and keeps cutting force fluctuation biggish
The allowance balance of regional location and the lesser regional location of cutting force fluctuation meets golden section proportion, to guarantee machining mistake
Journey it is steady.
A kind of connecting arc Part Surface Roughness index processing control method of the invention, makes full use of cutter main cutting
Sword carries out cutter path planning, and the surplus reasonable layout in region to be processed, effectively control part are realized based on balanced cutting load
Manufacturing deficiency guarantees that the surface roughness index of part meets design requirement.The processing of dish axle part is shortened using this method to grind
Period processed promotes the technological break-through of dish axle part high-precision processing.Processing experiment the result shows that, surface finish is higher, ditch
Phenomena such as trace and chatter mark, is obviously eliminated, and process time shortens, and tool wear phenomenon is obviously improved.
Detailed description of the invention
Fig. 1 is a kind of flow chart of connecting arc Part Surface Roughness index processing control method of the invention；
Fig. 2 is the Tool in Cutting track planned using traditional feed mode in the same direction；
Fig. 3 is the Tool in Cutting track planned using backward feed mode of the invention；
Fig. 4 such as is at the allowance balance schematic diagram of surpluses cutting way；
Fig. 5 is the present invention according to golden section proportion allowance balance schematic diagram adjusted.
Specific embodiment
Divide the invention proposes the cutter path planing method of alternately inverted feed with the surplus based on balanced cutting load
Method of completing the square control effectively to the connecting arcs Part Surface Roughness index such as aero-engine dish axle, ensure that part adds
Work precision, and parts processing surface quality and processing efficiency are improved, reduce tool wear.This method can be applied to all types of parts
Machined surface roughness norm controlling in, have stronger versatility and practicability.With reference to the accompanying drawing to the present invention do into
One step explanation.
As shown in Figure 1, a kind of connecting arc Part Surface Roughness index processing control method of the invention, including it is as follows
Step:
Step 1: feeding numerical quantity using theoretical formula method；
Step 2: determining cutter main cutting edge and main cutting direction；
Fig. 3 is the Tool in Cutting track planned using backward feed mode of the invention, wherein main 1, main 2 indicate you two
A main butt to, minus 1, it is minus 2 indicate two negative butts to.
Step 3: according to etc. surpluses cutting way, allowance balance is as shown in figure 4, and according to connecting arc position to be processed
Set the cutting direction and Cutting trajectory of the first knife of planning；
Step 4: according to the Cutting trajectory of previous knife, planning the Cutting trajectory of next knife, the Cutting trajectory of next knife is with before
The Cutting trajectory of one knife it is contrary, until removing whole surpluses, complete Tool in Cutting trajectory planning；
It is illustrated in figure 2 the Tool in Cutting track planned using traditional feed mode in the same direction, altogether feed 3 times, every time
Tool track it is identical.Fig. 3 is the Tool in Cutting track planned using backward feed mode of the invention, respectively with 1,2,3
Indicate that 3 tool tracks, each tool track are contrary with last tool track.
Step 5: chip-load analysis being carried out to the Tool in Cutting track planned, determines and cuts load in cutting process
Lotus distribution situation, specifically:
Chip-load analysis is carried out to the Tool in Cutting track planned with simulation software, obtains cutting force distribution map, root
According to the distribution situation of cutting force in the cutting process shown in cutting force distribution map, cutting force fluctuation on Cutting trajectory is found
Biggish regional location.
Step 6: according to chip-load distribution situation, adjusting allowance balance ratio according to golden section proportion, revised
Tool in Cutting track afterwards, specifically:
The machining allowance distribution for treating machining area according to golden section proportion is modified, and keeps cutting force fluctuation biggish
The allowance balance of regional location and the lesser regional location of cutting force fluctuation meets golden section proportion, to guarantee machining mistake
Journey it is steady.
Fig. 5 is according to golden section proportion allowance balance schematic diagram adjusted, and wherein A indicates cutting force fluctuation compared with cell
The surplus in domain, B indicate transition region surplus, and C indicates the surplus of cutting force fluctuation smaller area.
Step 7: repeating step 5 and step 6, until chip-load is evenly distributed, allowance balance is reasonable, cooks up optimal
Tool in Cutting track；
Step 8: according to optimal Tool in Cutting track is cooked up, machining being carried out to the connecting arc of part.
The foregoing is merely presently preferred embodiments of the present invention, the thought being not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of connecting arc Part Surface Roughness index processing control method, which comprises the steps of:
Step 1: feeding numerical quantity using theoretical formula method；
Step 2: determining cutter main cutting edge and main cutting direction；
Step 3: according to etc. surpluses cutting way, and according to connecting arc position to be processed plan the first knife cutting direction and
Cutting trajectory；
Step 4: according to the Cutting trajectory of previous knife, planning the Cutting trajectory of next knife, the Cutting trajectory of next knife and previous knife
Cutting trajectory it is contrary, until removing whole surpluses, complete Tool in Cutting trajectory planning；
Step 5: chip-load analysis being carried out to the Tool in Cutting track planned, determines chip-load point in cutting process
Cloth situation；
Step 6: according to chip-load distribution situation, adjusting allowance balance ratio according to golden section proportion, obtain revised
Tool in Cutting track；
Step 7: repeating step 5 and step 6, until chip-load is evenly distributed, allowance balance is reasonable, cooks up optimal cutter
Cutting trajectory；
Step 8: according to optimal Tool in Cutting track is cooked up, machining being carried out to the connecting arc of part.
2. connecting arc Part Surface Roughness index processing control method as described in claim 1, which is characterized in that described
Step 5 specifically:
Chip-load analysis is carried out to the Tool in Cutting track planned with simulation software, obtains cutting force distribution map, according to cutting
It is larger to find cutting force fluctuation on Cutting trajectory for the distribution situation for cutting cutting force in the cutting process shown in power distribution map
Regional location.
3. connecting arc Part Surface Roughness index processing control method as described in claim 1, which is characterized in that described
Step 6 specifically:
The machining allowance distribution for treating machining area according to golden section proportion is modified, and makes the biggish region of cutting force fluctuation
The allowance balance of position and the lesser regional location of cutting force fluctuation meets golden section proportion, to guarantee cutting process
Steadily.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396473.2A CN109507951A (en) | 2018-11-22 | 2018-11-22 | A kind of connecting arc Part Surface Roughness index processing control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811396473.2A CN109507951A (en) | 2018-11-22 | 2018-11-22 | A kind of connecting arc Part Surface Roughness index processing control method |
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| CN109507951A true CN109507951A (en) | 2019-03-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999011A (en) * | 2012-10-16 | 2013-03-27 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature alloy thin-wall case numerical-control lathing method |
| CN104625197A (en) * | 2013-11-07 | 2015-05-20 | 波音公司 | Real-time numerical control tool path adaptation using force feedback |
| CN105268998A (en) * | 2015-10-28 | 2016-01-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Circular-arc-shaped area turning surface roughness control method |
| CN107755765A (en) * | 2016-08-20 | 2018-03-06 | 韩海威 | The technique that die numerical control crudy can be improved |
| KR101842995B1 (en) * | 2016-10-31 | 2018-05-15 | 한국생산기술연구원 | Real-time control method of numerical control machine tool |
-
2018
- 2018-11-22 CN CN201811396473.2A patent/CN109507951A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999011A (en) * | 2012-10-16 | 2013-03-27 | 沈阳黎明航空发动机(集团)有限责任公司 | High-temperature alloy thin-wall case numerical-control lathing method |
| CN104625197A (en) * | 2013-11-07 | 2015-05-20 | 波音公司 | Real-time numerical control tool path adaptation using force feedback |
| CN105268998A (en) * | 2015-10-28 | 2016-01-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Circular-arc-shaped area turning surface roughness control method |
| CN107755765A (en) * | 2016-08-20 | 2018-03-06 | 韩海威 | The technique that die numerical control crudy can be improved |
| KR101842995B1 (en) * | 2016-10-31 | 2018-05-15 | 한국생산기술연구원 | Real-time control method of numerical control machine tool |
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Application publication date: 20190322 |
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