CN113600878A - Numerical control machining method for airplane wide-rib parts - Google Patents
Numerical control machining method for airplane wide-rib parts Download PDFInfo
- Publication number
- CN113600878A CN113600878A CN202110913041.XA CN202110913041A CN113600878A CN 113600878 A CN113600878 A CN 113600878A CN 202110913041 A CN202110913041 A CN 202110913041A CN 113600878 A CN113600878 A CN 113600878A
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- CN
- China
- Prior art keywords
- milling
- workpiece
- vacuum chuck
- airplane
- wide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
Abstract
The invention relates to a numerical control machining method for airplane wide-rib parts, which comprises the following steps of 1) forming a plurality of milling areas on a workpiece body, and forming a plurality of positioning holes in the milling areas; 2) the workpiece body is fixed with the vacuum chuck; 3) removing the milling areas, and reserving a rib plate between two adjacent milling areas; 4) milling off the rib plates after the milling area is completely removed; 5) and taking down the workpiece. Through vacuum chuck absorption, reserve the gusset position when getting rid of the milling area, guarantee that the course of working is stable, the work piece can not appear warping in the course of working.
Description
Technical Field
The invention relates to a part machining method, in particular to a numerical control machining method for airplane wide-rib parts, and belongs to the field of airplane part machining production.
Background
At present, the wide rib type parts of the airplane need to be processed into a hollow structure, and in the prior art, the processing is easy to deform, so that the thickness and the flatness of a workpiece can not be guaranteed to be kept in the processing process.
Disclosure of Invention
The invention aims to provide a numerical control machining method for airplane wide-rib parts.
In order to solve the above problems, the specific technical scheme of the invention is as follows: a numerical control machining method for airplane wide-rib parts comprises the following steps: 1) the workpiece body comprises a plurality of milling areas, and a plurality of positioning holes are formed in the milling areas;
2) a plurality of positioning holes corresponding to the positioning holes are formed in the vacuum chuck;
3) fixing the workpiece body with the vacuum chuck;
4) removing the milling areas to obtain a hollow structure, and reserving a rib plate between every two adjacent milling areas in the removing process;
5) milling off the rib plates after the milling area is completely removed;
6) and taking down the workpiece.
The outer contour of the workpiece body is formed by alternately distributing a plurality of trapezoidal bosses and trapezoidal grooves, and the heights of the trapezoidal bosses are consistent.
The workpiece body is placed on the vacuum chuck, the positioning hole is locked with the positioning hole on the vacuum chuck correspondingly by using the countersunk head bolt, and the vacuum compressor is started to vacuumize the vacuum chuck.
And 5), stopping the vacuum chuck after the step 5), and taking down the workpiece.
The invention has the following beneficial effects: the positioning holes are formed in the workpiece body in advance, so that the workpiece body is fixedly connected with the vacuum platform, and the workpiece is stable in the machining process.
In the machining process, a rib plate is reserved between two adjacent milling areas, so that the workpiece cannot deform in the process of removing the milling areas.
Drawings
Fig. 1 is a schematic structural diagram of a workpiece body.
Fig. 2 is a schematic structural view of a workpiece body in a machining process.
Detailed Description
As shown in fig. 1 and 2, the numerical control machining method for the airplane wide-rib part comprises a workpiece body 1, wherein the outline of the workpiece body 1 is formed by alternately arranging a plurality of trapezoidal bosses 11 and trapezoidal grooves 12, and the heights of the trapezoidal bosses 11 are consistent. The workpiece body 1 is provided with a plurality of milling areas 4, and the milling areas 4 are removed by fixing the workpiece 1 on the vacuum chuck 3 to obtain the hollow-structure wide-rib workpiece.
A plurality of positioning holes 2 are formed in the milling area 4, positioning holes corresponding to the positions of the positioning holes are formed in the vacuum chuck 3, the workpiece body 1 is placed on the vacuum chuck 3, the positioning holes 2 are locked with the positioning holes in the vacuum chuck 3 correspondingly through countersunk bolts, a vacuum compressor is started, the vacuum chuck 3 is vacuumized, and the stability of the workpiece in machining is further guaranteed.
The milling areas 4 reserve the position of the rib plate 5 between two adjacent milling areas 4 in the milling process, so that the machining precision of the workpiece in the machining process is ensured, and the strength of the workpiece is improved.
And after the milling area 4 is completely processed, milling off the rib plates 5 to complete the processing of the workpiece, turning off the vacuum compressor, and taking down the workpiece.
What has been described above is merely a preferred embodiment of the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the principle of the present invention, and they should also be considered as falling within the scope of the present invention.
Claims (4)
1. A numerical control machining method for airplane wide-rib parts is characterized by comprising the following steps: 1) the workpiece body (1) comprises a plurality of milling areas (4), and a plurality of positioning holes (2) are formed in the milling areas (4);
2) a plurality of positioning holes corresponding to the positioning holes (2) are formed in the vacuum chuck (3);
3) fixing the workpiece body (1) and the vacuum chuck (3);
4) removing the milling areas (4) to obtain a hollow structure, and reserving a rib plate (5) between every two adjacent milling areas (4) in the removing process;
5) after the milling area (4) is completely removed, milling off the rib plates (5);
6) and taking down the workpiece.
2. The numerical control machining method for the airplane wide-rib part as claimed in claim 1, characterized in that the outline of the workpiece body (1) is composed of a plurality of trapezoidal bosses (11) and trapezoidal grooves (12) which are alternately arranged, and the heights of the trapezoidal bosses (11) are consistent.
3. The numerical control machining method for the airplane wide-rib part according to claim 1 is characterized in that the workpiece body (1) is placed on the vacuum chuck (3), the positioning hole (2) is locked corresponding to the positioning hole on the vacuum chuck (3) by using a countersunk head bolt, and a vacuum compressor is started to vacuumize the vacuum chuck (3).
4. The numerical control machining method for the airplane wide-rib part as claimed in claim 1, wherein after the step 5), the vacuum chuck (3) stops working, and the workpiece is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913041.XA CN113600878A (en) | 2021-08-10 | 2021-08-10 | Numerical control machining method for airplane wide-rib parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110913041.XA CN113600878A (en) | 2021-08-10 | 2021-08-10 | Numerical control machining method for airplane wide-rib parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113600878A true CN113600878A (en) | 2021-11-05 |
Family
ID=78307906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110913041.XA Pending CN113600878A (en) | 2021-08-10 | 2021-08-10 | Numerical control machining method for airplane wide-rib parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113600878A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004066448A (en) * | 2002-06-10 | 2004-03-04 | Seiwa:Kk | Vacuum chuck |
| CN101704183A (en) * | 2009-12-10 | 2010-05-12 | 西安飞机工业（集团）有限责任公司 | Horizontal numerical control machining method of plane beam-type parts |
| CN103612076A (en) * | 2013-12-04 | 2014-03-05 | 中航飞机股份有限公司西安飞机分公司 | Method for numerical control machining of large aircraft rib parts |
| CN107442824A (en) * | 2017-07-31 | 2017-12-08 | 成都飞机工业（集团）有限责任公司 | A kind of titanium alloy thin wall one side frame class part vacuum suction numerical-control processing method |
| CN108746782A (en) * | 2018-05-29 | 2018-11-06 | 成都飞机工业（集团）有限责任公司 | A kind of method for milling of the hanging web of high-precision |
-
2021
- 2021-08-10 CN CN202110913041.XA patent/CN113600878A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004066448A (en) * | 2002-06-10 | 2004-03-04 | Seiwa:Kk | Vacuum chuck |
| CN101704183A (en) * | 2009-12-10 | 2010-05-12 | 西安飞机工业（集团）有限责任公司 | Horizontal numerical control machining method of plane beam-type parts |
| CN103612076A (en) * | 2013-12-04 | 2014-03-05 | 中航飞机股份有限公司西安飞机分公司 | Method for numerical control machining of large aircraft rib parts |
| CN107442824A (en) * | 2017-07-31 | 2017-12-08 | 成都飞机工业（集团）有限责任公司 | A kind of titanium alloy thin wall one side frame class part vacuum suction numerical-control processing method |
| CN108746782A (en) * | 2018-05-29 | 2018-11-06 | 成都飞机工业（集团）有限责任公司 | A kind of method for milling of the hanging web of high-precision |
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