CN106843143A - Optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions - Google Patents
Optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions Download PDFInfo
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- CN106843143A CN106843143A CN201710073676.7A CN201710073676A CN106843143A CN 106843143 A CN106843143 A CN 106843143A CN 201710073676 A CN201710073676 A CN 201710073676A CN 106843143 A CN106843143 A CN 106843143A
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- Prior art keywords
- circular arc
- radius
- flat surface
- cutter
- optimization
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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
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
Abstract
The invention discloses the optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions, the method includes：（1）The circular arc starting point and circular arc terminal of r ＜ R in workpiece profile are found out, wherein, R is tool radius, and r is machining profile radius；（2）Respectively with circular arc starting point, circular arc terminal as the center of circle, circular arc is done by radius of R；（3）Remaining curve of workpiece profile is carried out shift compensation with the radius R of cutter；（4）Curve obtained by two circular arcs and shift compensation curve intersection is the central track of cutter after optimization.The present invention can leave smaller residual volume for finishing, greatly reduce the finishing time, can shorten product manufacturing process time, so as to reduce production cost.
Description
Technical field
The invention belongs to Mechanical Manufacture and Automation field, and in particular to one kind is based on the small radius of curvature of UG flat surface impressions
The optimization method of circular arc digital control processing.
Background technology
The extensive use of Digit Control Machine Tool, significantly shortens the manufacturing cycle of product, improves the crudy of product
And productivity ratio.And in the whole production process of product, the machining time accounts for the whole manufacturing cycle more than 60%, in order to reduce
Or avoid guarding the unnecessary waste that parameter is caused, the research for the parameter optimization of numerical control cutting process just seems
It is very necessary.UG softwares are the state-of-the-art high-end CAD/CAM/CAE softwares in the world today, are research numerical control programming and a processing
The good platform of automation.Although UG CAM have powerful function, the setting of its machined parameters is a mistake for complexity
Journey, including the selection of processing method, the selection of cutter, the setting of processing route, the setting of machined parameters, the generation of knife rail, plus
The checking of work method and the output of NC codes etc..In the last few years, seek relatively reasonable cutting data and have related parameter, and
The optimum combination of cutting parameter, as an important directions for being numerical control cutting processing.
In numerical control cutting processing, the proportion shared by flat surface impression milling is very big, and in flat surface impression milling, Chang Huiyu
To such case：There is radius of curvature in side view less than the circular arc of cutter.In this case, in order to avoid cutting by mistake, UG is soft
Part would generally use more conservative parameter, cause to reduce roughing amount, and remaining larger surplus is finished, as shown in Figure 5.Total institute
It is known, identical surplus is processed, the time with big tool sharpening is far longer than with small cutter process time.During finishing, due to
Cutter is smaller, so remaining balance is big after roughing, finishing total time will be substantially increased, so as to increased part
Total elapsed time, reduces productivity ratio.
So, if the exploitation of the optimization design of flat surface impression nc program can be completed, it will reach shortening product
Manufacture process time, so as to reduce production cost, this manufacturing enterprise will be obtained distinct economic play it is highly important
Effect.
The content of the invention
It is an object of the invention to provide a kind of optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions,
It can leave smaller residual volume for finishing, greatly reduce the finishing time, when can shorten product manufacturing processing
Between, so as to reduce production cost.
The optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions that the present invention is provided, the method bag
Include：
（1）The circular arc starting point and circular arc terminal of r ＜ R in workpiece profile are found out, wherein, R is tool radius, and r is machining profile half
Footpath；
（2）Respectively with circular arc starting point, circular arc terminal as the center of circle, circular arc is done by radius of R；
（3）Remaining curve of workpiece profile is carried out shift compensation with the radius R of cutter；
（4）Curve obtained by two circular arcs and shift compensation curve intersection is the central track of cutter after optimization.
The present invention can allow roughing when can milling as much as possible, be next time small cutter finishing leave it is smaller
Residual volume, greatly reduces the finishing time, so as to reduce the total time of processing, can shorten product manufacturing process time,
So as to reduce production cost, distinct economic is obtained to manufacturing enterprise and is played a very important role.
Brief description of the drawings
Fig. 1 is the schematic diagram of the Origin And Destination for finding out r ＜ R circular arcs of the invention.
Fig. 2 is of the invention with starting point, terminal as the center of circle, makees the schematic diagram of circular arc as radius with R.
Fig. 3 is the schematic diagram that curve of the invention carries out tool radius shift compensation.
Fig. 4 is the schematic diagram of the roughing remaining balance after optimization of the invention.
The schematic diagram of the roughing remaining balance before Fig. 5 optimizations.
Fig. 6 is the schematic diagram of the circular arc optimized algorithm flow chart of r ＜ R of the invention.
Specific embodiment
Referring to figs. 1 to Fig. 4 and Fig. 6, the present invention provide based on the small curvature radius arc digital control processing of UG flat surface impressions
Optimization method, the method includes：
（1）The circular arc starting point B1 and circular arc terminal B2 of r ＜ R in workpiece A profiles are found out, wherein, R is tool radius, and r takes turns for processing
Wide radius；
（2）Respectively with circular arc starting point B1, circular arc terminal B2 as the center of circle, circular arc C 1, C2 is done by radius of R；
（3）Remaining curve of workpiece A profiles is carried out shift compensation with the radius R of cutter；
（4）It is the central track of cutter E1 after optimization that two circular arc Cs 1, C2 intersect resulting curve with shift compensation curve D.
Then, check whether process tool movement locus is searched to finish, if do not search finishing, return to the first step, weight
Multiple above-mentioned steps to lookup is finished, and terminates optimization.
From Fig. 4 and Fig. 5, the central track of cutter E2 before optimization is a straight line, the roughing remaining balance before optimization
F2 is more much greater than the roughing remaining balance F1 after optimization.
Claims (1)
1. a kind of optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions, it is characterised in that the method bag
Include：
（1）The circular arc starting point and circular arc terminal of r ＜ R in workpiece profile are found out, wherein, R is tool radius, and r is machining profile half
Footpath；
（2）Respectively with circular arc starting point, circular arc terminal as the center of circle, circular arc is done by radius of R；
（3）Remaining curve of workpiece profile is carried out shift compensation with the radius R of cutter；
（4）Curve obtained by two circular arcs and shift compensation curve intersection is the central track of cutter after optimization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073676.7A CN106843143A (en) | 2017-02-10 | 2017-02-10 | Optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710073676.7A CN106843143A (en) | 2017-02-10 | 2017-02-10 | Optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106843143A true CN106843143A (en) | 2017-06-13 |
Family
ID=59122252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710073676.7A Pending CN106843143A (en) | 2017-02-10 | 2017-02-10 | Optimization method based on the small curvature radius arc digital control processing of UG flat surface impressions |
Country Status (1)
| Country | Link |
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| CN (1) | CN106843143A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107844A (en) * | 2017-12-13 | 2018-06-01 | 西安昆仑工业（集团）有限责任公司 | Numerical-control processing method with complicated precipitous Internal periphery curve-surface cavity |
| CN110908332A (en) * | 2019-12-05 | 2020-03-24 | 上海维宏电子科技股份有限公司 | Method for realizing cutter radius compensation control for arc cutter path in numerical control system |
| CN112191898A (en) * | 2020-09-14 | 2021-01-08 | 西安昆仑工业（集团）有限责任公司 | Semi-cylindrical cavity rough machining numerical control machining method |
-
2017
- 2017-02-10 CN CN201710073676.7A patent/CN106843143A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107844A (en) * | 2017-12-13 | 2018-06-01 | 西安昆仑工业（集团）有限责任公司 | Numerical-control processing method with complicated precipitous Internal periphery curve-surface cavity |
| CN108107844B (en) * | 2017-12-13 | 2020-04-10 | 西安昆仑工业（集团）有限责任公司 | Numerical control machining method for cavity with complex steep inner contour curved surface |
| CN110908332A (en) * | 2019-12-05 | 2020-03-24 | 上海维宏电子科技股份有限公司 | Method for realizing cutter radius compensation control for arc cutter path in numerical control system |
| CN110908332B (en) * | 2019-12-05 | 2023-06-23 | 上海维宏电子科技股份有限公司 | Method for realizing cutter radius compensation control aiming at circular arc cutter path in numerical control system |
| CN112191898A (en) * | 2020-09-14 | 2021-01-08 | 西安昆仑工业（集团）有限责任公司 | Semi-cylindrical cavity rough machining numerical control machining method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |
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| WD01 | Invention patent application deemed withdrawn after publication |