CN112613135A - Design method for trimming data of titanium alloy corner piece part - Google Patents
Design method for trimming data of titanium alloy corner piece part Download PDFInfo
- Publication number
- CN112613135A CN112613135A CN202011452463.3A CN202011452463A CN112613135A CN 112613135 A CN112613135 A CN 112613135A CN 202011452463 A CN202011452463 A CN 202011452463A CN 112613135 A CN112613135 A CN 112613135A
- Authority
- CN
- China
- Prior art keywords
- titanium alloy
- trimming
- trimming data
- common
- parts
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/28—Fuselage, exterior or interior
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Computational Mathematics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Numerical Control (AREA)
Abstract
The invention relates to a design method for trimming data of a titanium alloy corner piece part, and belongs to the technical field of aircraft manufacturing. A design method for trimming data of a titanium alloy corner piece part comprises the following steps: the method comprises the following steps: selecting a common-mode forming part; selecting a plurality of parts with similar shapes and sizes which can be formed on the same die by measuring a digital model of a titanium alloy angle sheet product; step two: respectively designing trimming data of single parts; step three: arranging the trimming data in a straight line; keeping the relative positions of the web surface and the flanging surface of each common mode unchanged according to the principle of optimal arrangement and material saving of parts; step four: and (6) trimming. The invention has the following advantages: the numerical control cutting machine can be directly used for batch numerical control processing of trimming after the titanium alloy fillet part with small external contour size is formed, greatly facilitates batch trimming operation of the titanium alloy fillet part, greatly shortens the design period of trimming data of the titanium alloy fillet part, and improves the manufacturing efficiency of the titanium alloy fillet part.
Description
Technical Field
The invention relates to a design method for trimming data of a titanium alloy corner piece part, and belongs to the technical field of aircraft manufacturing.
Background
The technological process of hot forming plate part with titanium alloy includes the steps of preparing blank, pre-forming, hot forming, correcting, trimming, surface treatment, etc. The titanium alloy plate part is difficult to cut edge manually due to high hardness, and the edge cutting process needs to be finished by linear cutting, water cutting or laser cutting.
There are a large amount of titanium alloy angle piece parts that are used for the connection structure spare in modern unmanned aerial vehicle, and the biggest overall dimension is less than 40mm, and the part size is little, because titanium alloy panel part thermoforming process is complicated, the cycle is long, with high costs, needs a plurality of parts to take shape jointly, takes shape at last in unified side cut after the shaping. Therefore, the trimming process urgently needs to design a data design method for numerical control trimming.
Disclosure of Invention
The invention aims to provide a method for designing the trimming data of a titanium alloy fillet part, which can ensure the quick trimming of the titanium alloy trimming part, is convenient for the operation of a fitter for cutting the titanium alloy part and improves the working efficiency of the titanium alloy hot-forming plate part processing.
In order to achieve the purpose, the invention adopts the following technical scheme: a design method for trimming data of a titanium alloy corner piece part comprises the following steps:
the method comprises the following steps: selecting a common-mode forming part;
selecting a plurality of parts with similar shapes and sizes which can be formed on the same die by measuring a digital model of a titanium alloy angle sheet product;
step two: respectively designing trimming data of single parts;
step three: arranging the trimming data in a straight line;
keeping the relative positions of the web surface and the flanging surface of each common mode unchanged according to the principle of optimal arrangement and material saving of parts;
step four: and (6) trimming.
Preferably, in step one, the co-formable parts have several common features:
(1) a single-edge-bending titanium alloy corner piece part with a simple appearance and no sinking characteristic;
(2) the difference of the outline dimensions is required to be within 10 mm;
(3) the difference of the bending angles of the parts formed by the same group of common mode is required to be within +/-1 degrees;
(4) the bending radii need to be the same.
Preferably, in the second step, designing trimming data of the single part includes the following steps:
(1) extracting a part outline from a three-dimensional model of a part product to generate two-dimensional plane data which can be used for numerical control trimming;
(2) the contour lines of the bending side and the web surface are aligned;
(3) and designing a tool moving line of the contour line of the flanging surface and the contour line of the web plate surface.
Preferably, in the third step, the web surface and the trimming data of the curved surface are connected end to end by a cutter line, and are linearly arranged to generate the trimming data of the contour line of the curved surface and the trimming data of the contour line of the web surface.
Preferably, in the fourth step, the size of the blanks of the common-mode parts is determined according to the maximum profile of the arranged trimming data, and after the common-mode parts are manufactured and formed, the common-mode parts are transferred to a cutting machine to be fixed for numerical control trimming of the common-mode parts. After the numerical control trimming is finished, local excess materials exist in the positions of the plurality of parts at the edges, and workers can easily cut off and polish the cut surfaces smoothly.
Compared with the prior art, the invention has the following advantages:
the numerical control cutting machine can be directly used for batch numerical control processing of trimming after the titanium alloy fillet part with small external contour size is formed, greatly facilitates batch trimming operation of the titanium alloy fillet part, greatly shortens the design period of trimming data of the titanium alloy fillet part, and improves the manufacturing efficiency of the titanium alloy fillet part.
Drawings
FIG. 1 is a schematic illustration of the components of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a three-dimensional profile extraction line according to an embodiment of the present invention;
FIG. 3 is a schematic view of a trimming data design according to an embodiment of the present invention;
FIG. 4 is a schematic view of a trimming data arrangement according to an embodiment of the present invention;
in the figure, 1, a bending surface; 2. a web face; 3. bending the starting line; 4. a curved surface contour line; 5. the outline of the web surface.
Detailed Description
The following takes the titanium alloy fillet part model shown in fig. 1 as an example, and with reference to fig. 2 to 4, further illustrates a specific implementation process of the trimming data design of the titanium alloy fillet part:
the method comprises the following steps: selecting common mode forming parts
The parts that can be co-molded must meet several common requirements:
(1) a single-edge-bending titanium alloy corner piece part with a simple appearance and no sinking characteristic;
(2) the difference of the outline dimensions is required to be within 10 mm;
(3) the difference of the bending angles of the parts formed by the same group of common mode is required to be within +/-1 degrees;
(4) the bending radii need to be the same.
Measuring a digital model of the corner piece part in the figure 1, wherein the thickness of the part blank is d, the web plate surface 2 and the bending side surface 1 are planes, the length, the width and the height are L, N, H respectively, the bending angle is 90 degrees, the bending radius is R, and the part blank has complex structural characteristics of single bending side, no sinking and the like; selecting other 5 corner piece parts which can be formed in a co-molding mode from the same batch of parts according to the requirements which can be met by the co-molded parts;
step two: designing trimming data of individual parts separately
The 6 corner piece parts were designed in the following manner:
(1) as shown in fig. 2, in the three-dimensional model of the part product, in a manner that the relative position of the part edge is downward, an edge bending surface contour line 4 and a web surface contour line 5 of the part starting from a bending start line 3 are extracted, and two-dimensional plane data which can be used for numerical control trimming as shown in fig. 3 are generated;
(2) as shown in fig. 3, in the two-dimensional CAD model, the bending start lines of the curved surface contour line 4 and the web surface contour line 5 are made parallel and arranged according to the actual relative positions of the parts; aligning two points of the starting end A, B of the curved surface contour line 4 with two points of the starting end C, D of the web surface contour line 5 in the direction vertical to the bending starting line 3; the distance between the two bending starting lines 3 is adjusted according to the actual size of the part;
(3) as shown in fig. 3, at points B and D, extending straight outwards along the curve start line, beyond the maximum contour D, to form two cutting lines B-B1 and D-D1; and projecting the E point of the maximum outline of the web surface outline 5 close to the C point onto the extension line of the bending starting line 3 to obtain an E1 point, extending outwards along the bending starting line 3 from the E1 point by a straight line d to obtain a C1 point, and finally forming a C-C1 cutting line. The point C1 is perpendicular to the bending start line and projects on the extension line of the bending start line of the bending surface to obtain a point A1, and the straight line connects the point A and the point A1 to obtain a cutting line A-A1. The curve start line shown in fig. 3 is indicated by a broken line, and is not used for numerical control machining but is used only as an auxiliary line; the line A1-A-B-B1 represented by a solid line is part edge-cutting face trimming data; C1-C-D-D1 line segments represented by solid lines are part web surface trimming data;
step three: trimming data arrangement
The 6 parts trimming data are uniformly arranged according to the characteristics of the bent edge surface, the web plate surface and the like of the parts; the bending starting lines 3 of 6 trimming data are kept on a straight line, and the cutter running lines of adjacent parts are directly connected end to end; a certain machining allowance is outwards arranged on the periphery of the edge cutting graphs of the arranged 6 parts, and two parts of feed line ends A1 and C1 arranged at the starting positions coincide with feed line ends B6 and D6 of the last part and are used as a tool starting point and a tool retracting point for numerical control edge cutting;
step four: edge cutting
After blanking and forming according to the maximum contour, carrying out numerical control trimming according to trimming data of a curved surface contour line 4 and trimming data of a web surface contour line 5 shown in figure 4, and finally manually trimming five residual material areas such as B-A02-C02-D-B, B02-A03-C03-D02-B02, B03-A04-C04-D03-B03, B04-A05-C05-D04-B04, B05-A06-C06-D05-B05 and the like by workers to obtain 5 finished parts by manual grinding.
The above examples are merely preferred embodiments of the present invention and are not to be construed as limiting the invention. It will be understood by those skilled in the art that any extension, equivalent replacement, etc. made without departing from the essence of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. A design method for trimming data of a titanium alloy corner piece part is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: selecting a common-mode forming part;
selecting a plurality of parts with similar shapes and sizes which can be formed on the same die by measuring a digital model of a titanium alloy angle sheet product;
step two: respectively designing trimming data of single parts;
step three: arranging the trimming data in a straight line;
keeping the relative positions of the web surface and the flanging surface of each common mode unchanged according to the principle of optimal arrangement and material saving of parts;
step four: and (6) trimming.
2. The method for designing trimming data of a titanium alloy fillet part as set forth in claim 1, wherein: in step one, the co-moldable part has several common features:
(1) a single-edge-bending titanium alloy corner piece part with a simple appearance and no sinking characteristic;
(2) the difference of the outline dimensions is required to be within 10 mm;
(3) the difference of the bending angles of the parts formed by the same group of common mode is required to be within +/-1 degrees;
(4) the bending radii need to be the same.
3. The method for designing trimming data of a titanium alloy fillet part as set forth in claim 1, wherein: in the second step, designing trimming data of a single part comprises the following steps:
(1) extracting a part outline from a three-dimensional model of a part product to generate two-dimensional plane data which can be used for numerical control trimming;
(2) the contour lines of the bending side and the web surface are aligned;
(3) and designing a tool moving line of the contour line of the flanging surface and the contour line of the web plate surface.
4. The method for designing trimming data of a titanium alloy fillet part as set forth in claim 1, wherein: and in the third step, the web surface and the trimming data of the bending surface are connected end to end by a cutter line, and are linearly arranged to generate the trimming data of the contour line of the bending surface and the trimming data of the contour line of the web surface.
5. The method for designing trimming data of a titanium alloy fillet part as set forth in claim 1, wherein: and in the fourth step, determining the size of the blank of the common-mode part according to the maximum profile of the arranged trimming data, and transferring the common-mode part to a cutting machine to fix the common-mode part for numerical control trimming after the common-mode part is manufactured and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452463.3A CN112613135B (en) | 2020-12-12 | 2020-12-12 | Design method for trimming data of titanium alloy corner piece part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011452463.3A CN112613135B (en) | 2020-12-12 | 2020-12-12 | Design method for trimming data of titanium alloy corner piece part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112613135A true CN112613135A (en) | 2021-04-06 |
| CN112613135B CN112613135B (en) | 2022-11-18 |
Family
ID=75232998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011452463.3A Active CN112613135B (en) | 2020-12-12 | 2020-12-12 | Design method for trimming data of titanium alloy corner piece part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112613135B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789931A (en) * | 1986-09-04 | 1988-12-06 | Sony Corporation | System for automatically generating tool path data for automatic machining center |
| US6279438B1 (en) * | 1997-01-20 | 2001-08-28 | Jean-Michel Delacou | Metal cutting machining device, with massive block and sliding column and machine integrating this device |
| JP2002263751A (en) * | 2001-03-09 | 2002-09-17 | Komatsu Ltd | Plate working method and working die thereof |
| WO2011146884A1 (en) * | 2010-05-21 | 2011-11-24 | Flow International Corporation | Automated determination of jet orientation parameters in three-dimensional fluid jet cutting |
| CN103111579A (en) * | 2013-02-06 | 2013-05-22 | 宁波海星机械制造有限公司 | Multistage cold former idler wheel type back through ejector rod device |
| CN103365243A (en) * | 2013-06-18 | 2013-10-23 | 南京航空航天大学 | Method for rapidly generating corner side milling process path |
| TWM485299U (en) * | 2014-05-21 | 2014-09-01 | yu-zheng Su | Structure improvement of oil filter by-pass valve |
| CN105081133A (en) * | 2015-08-31 | 2015-11-25 | 西北工业大学 | Method for controlling warping of web of large frame type sheet metal part |
| CN106295058A (en) * | 2016-08-23 | 2017-01-04 | 西北工业大学 | A kind of digitizing detection method of sheet metal part angle of bend |
| US20170368588A1 (en) * | 2015-01-07 | 2017-12-28 | Seki Press Co. Ltd. | Method for machining outer circumference of metal end cross-section and method for joining metal component obtained by the machining method with another member |
| CN206966373U (en) * | 2017-05-26 | 2018-02-06 | 勤钦精密工业(昆山)有限公司 | A kind of continuous production sheet metal production device |
| CN208341538U (en) * | 2018-12-05 | 2019-01-08 | 烟台泰利汽车模具股份有限公司 | A kind of high-strength plate stringer the left and right parts using one die shaping dies |
-
2020
- 2020-12-12 CN CN202011452463.3A patent/CN112613135B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789931A (en) * | 1986-09-04 | 1988-12-06 | Sony Corporation | System for automatically generating tool path data for automatic machining center |
| US6279438B1 (en) * | 1997-01-20 | 2001-08-28 | Jean-Michel Delacou | Metal cutting machining device, with massive block and sliding column and machine integrating this device |
| JP2002263751A (en) * | 2001-03-09 | 2002-09-17 | Komatsu Ltd | Plate working method and working die thereof |
| WO2011146884A1 (en) * | 2010-05-21 | 2011-11-24 | Flow International Corporation | Automated determination of jet orientation parameters in three-dimensional fluid jet cutting |
| CN103111579A (en) * | 2013-02-06 | 2013-05-22 | 宁波海星机械制造有限公司 | Multistage cold former idler wheel type back through ejector rod device |
| CN103365243A (en) * | 2013-06-18 | 2013-10-23 | 南京航空航天大学 | Method for rapidly generating corner side milling process path |
| TWM485299U (en) * | 2014-05-21 | 2014-09-01 | yu-zheng Su | Structure improvement of oil filter by-pass valve |
| US20170368588A1 (en) * | 2015-01-07 | 2017-12-28 | Seki Press Co. Ltd. | Method for machining outer circumference of metal end cross-section and method for joining metal component obtained by the machining method with another member |
| CN105081133A (en) * | 2015-08-31 | 2015-11-25 | 西北工业大学 | Method for controlling warping of web of large frame type sheet metal part |
| CN106295058A (en) * | 2016-08-23 | 2017-01-04 | 西北工业大学 | A kind of digitizing detection method of sheet metal part angle of bend |
| CN206966373U (en) * | 2017-05-26 | 2018-02-06 | 勤钦精密工业(昆山)有限公司 | A kind of continuous production sheet metal production device |
| CN208341538U (en) * | 2018-12-05 | 2019-01-08 | 烟台泰利汽车模具股份有限公司 | A kind of high-strength plate stringer the left and right parts using one die shaping dies |
Non-Patent Citations (10)
| Title |
|---|
| MANFRED WALTER 等: ""Rapid manufacturing and its impact on supply chain management"", 《HTTPS://WWW.RESEARCHGATE.NET/PUBLICATION/267819657》 * |
| MANFRED WALTER 等: ""Rapid manufacturing and its impact on supply chain management"", 《HTTPS://WWW.RESEARCHGATE.NET/PUBLICATION/267819657》, 10 September 2004 (2004-09-10), pages 1 - 13 * |
| 余鸿坤: ""一种新型智能配电控制模块的设计与研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 余鸿坤: ""一种新型智能配电控制模块的设计与研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, 15 February 2020 (2020-02-15), pages 042 - 1004 * |
| 唐星德: "两个侧板零件级进模共模设计", 《机电元件》 * |
| 唐星德: "两个侧板零件级进模共模设计", 《机电元件》, no. 03, 25 June 2020 (2020-06-25), pages 20 - 23 * |
| 柳一凡等: "车顶天窗框架废料利用研究及应用", 《精密成形工程》 * |
| 柳一凡等: "车顶天窗框架废料利用研究及应用", 《精密成形工程》, no. 04, 10 July 2020 (2020-07-10), pages 171 - 174 * |
| 韩佳: ""基于AutoForm的轿车前机舱罩内板成型模拟研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 韩佳: ""基于AutoForm的轿车前机舱罩内板成型模拟研究"", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》, 15 January 2019 (2019-01-15), pages 035 - 768 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112613135B (en) | 2022-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105499431B (en) | Automobile top cover punch forming process and deburring shaping composite die | |
| CN105710612A (en) | Numerical-control processing method for aircraft wall plate part with complex structure | |
| CN103902755A (en) | Sheet metal part three-dimensional die set design technology | |
| CN103639651B (en) | Accurate and efficient antenna skin cutting method | |
| CN105790520A (en) | Motor lamination riveting rotor and stator grading punching folding device | |
| CN101992582B (en) | Cooperative machining method for large sandwich component | |
| CN103111529B (en) | Machining method of U-shaped sheet metal part resilience mould tire | |
| CN107639159A (en) | The automobile oil-feed parts-moulding progressive die and forming method | |
| CN112613135B (en) | Design method for trimming data of titanium alloy corner piece part | |
| CN104858300A (en) | Strip-shaped LED filament support continuous punching mould | |
| CN103530452A (en) | Calculation method of flattened hollow blade near-net forming blank | |
| CN103406449B (en) | Drawing die for covering parts of automobiles | |
| CN105458066A (en) | Sectional material dressing die | |
| CN113868802B (en) | Hollow blade margin optimization model building and solving method under variable wall thickness constraint | |
| CN208680978U (en) | A kind of trimming auxiliary mould of plate shaping stringer end | |
| CN102205487A (en) | Method for machining metal plate by using laser cutting and numerical control press | |
| CN105414621A (en) | Machining method for blade rabbet with asymmetric pressure faces | |
| CN103272951B (en) | Tangent plane model staggered form mould tire manufacture method | |
| CN113334156A (en) | Forming method for punch cutting edge of shutter of air conditioner die | |
| CN203764784U (en) | Bending machine die for ninthly-bent workpiece | |
| CN205852409U (en) | A kind of cutting dies of shop parts inner edge | |
| CN106111788A (en) | A kind of antenna processing technique of U-shaped connector | |
| CN102303220A (en) | Manufacturing method of arc plate blade forming die of ventilation fan | |
| CN105382107A (en) | Sheet material curved surface forming stamping die | |
| CN208067120U (en) | Repair the crease-resistant drawing composite die in angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |