CN109213081B - Numerical control machining method of propeller model for multi-blade ship - Google Patents
Numerical control machining method of propeller model for multi-blade ship Download PDFInfo
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- CN109213081B CN109213081B CN201711028692.0A CN201711028692A CN109213081B CN 109213081 B CN109213081 B CN 109213081B CN 201711028692 A CN201711028692 A CN 201711028692A CN 109213081 B CN109213081 B CN 109213081B
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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
- G05B19/4097—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 using design data to control NC machines, e.g. CAD/CAM
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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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32153—Exchange data between user, cad, caq, nc, capp
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a numerical control machining method of a propeller model for a multi-blade ship, which designs a cylindrical blank enveloping the propeller model for the multi-blade ship, wherein an annular boss is arranged on the periphery of a cylinder at the lower part of the cylindrical blank to form an outer ring large process table, a small process table is arranged between the outer ring large process table and each blade tip, and the small process table connects the outer ring large process table with each blade tip. According to the invention, by arranging the outer ring large process table and the small process table between the blade tip and the outer ring large process table, the numerical control machining rigidity of the novel extremely-weak-rigidity multi-blade marine propeller hydrodynamic test model is ensured, the rigidity of the blades, the angular positioning of the machining of two surfaces and the clamping and supporting in the machining process are ensured, the machining of the novel multi-blade marine propeller hydrodynamic test model can be efficiently and high-quality completed, and the method can also be applied to the machining of similar multi-blade weak-rigidity marine propeller models.
Description
Technical Field
The invention relates to a numerical control machining method of a propeller model for a multi-paddle ship, and belongs to the technical field of numerical control machining of a hydrodynamic test model of the multi-paddle ship.
Background
The design of novel marine propeller all should do hydrodynamic test, does the screw model that the experiment just need to process a scaling. The conventional marine propeller is characterized in that the diameter of a hub is large, the hub is thick, the number of blades is usually not more than 7, the rigidity of the blades is good, a conventional propeller model is machined in the prior art, namely, the hub is used as a support and positioning, rough-semi-finish milling is carried out on a five-coordinate machining center, if a five-axis numerical control milling mode is adopted, the numerical control machining mode is similar to a blisk, layered milling is directly carried out on the five-coordinate numerical control milling machine, and cutting parameters are controlled. Because the number of the blades of the conventional propeller is not more than 7, the hub is thick, the rigidity of the blades is good, and the conventional processing technology is adopted, so that the processing is not problematic.
However, the novel marine propeller with the geometric profile has more than that of the traditional propeller, the bending degree of the blades is large, the diameter of the blade-shaped blade is only 0.15 times that of the propeller hub. Compared with the traditional propeller, the propeller is characterized in that: the number of the blades is large, the blades are slender and have large bending angles, and the diameter of the hub is small and is only 0.15 times of the diameter of the propeller (see figure 1). These structural features create great difficulties for numerical control machining. The paddle is slender and bent, and is made of aluminum alloy, so that the rigidity of the paddle is extremely poor, and the paddle is extremely easy to deform under the influence of cutting force. When the propeller with multiple blades and a thin hub is used, the rigidity of the blades is extremely poor, the existing processing method cannot finish numerical control processing of a novel propeller model for the multiple-blade ship, and the blades are vibrated and deformed inevitably at the blade tip parts of the blades, so that the blades are cut, and therefore an innovative process technology must be adopted, and an effective process measure is adopted to process a qualified propeller model.
Disclosure of Invention
Aiming at the serious defects in the prior art, the invention provides a numerical control machining method of a propeller model for a multi-blade ship, which adopts effective measures on enhancing the rigidity of blades, can efficiently finish machining the multi-blade propeller model with high quality and can meet the requirements of hydrodynamic tests of the multi-blade propeller.
In order to solve the technical problems, the invention is realized by the following scheme:
a numerical control machining method of a propeller model for a multi-blade ship is characterized by comprising the following steps: the method comprises the following steps:
(1) design blank
The method comprises the following steps that a cylindrical blank enveloping a propeller model for a multi-blade ship is adopted, an annular convex edge is arranged on the periphery of a cylinder at the lower part of the cylindrical blank to form an outer ring large process table, and two axial through holes which are radially symmetrical are machined on the outer ring large process table and used for ensuring the consistency of angular references when two sides of blades are machined;
(2) a small process table is arranged between the large process table of the outer ring and each blade tip, the small process table connects the large process table of the outer ring with each blade tip, the number of the small process tables is the same as that of the blades, and the positions of the small process tables correspond to the positions of the blade tips one by one;
(3) and milling the shape of the blade on one side of the part where the blade tip is connected with the small process table under the condition of ensuring the continuous connection part, sawing off the large process table and the small process table on the outer ring by a fitter after the processing is finished, and then filing the blade in place by the fitter according to the milled blade tip shape as a reference for the fitter so as to ensure the shape of the blade tip.
Furthermore, the connecting part is 2-3 mm.
Further, the number of the blades of the multi-blade marine propeller model is more than 10.
The invention has the following technical effects:
the invention has the advantages that the blade tips of each blade are connected with the outer ring large process platform by the small process platform which is arranged between the outer ring large process platform and the blade tips, the rigidity of the blade is greatly enhanced, the outer ring large process platform and the small process platform are not only used for supporting and clamping parts, but also are mainly directly or indirectly connected with the blade tips of each blade, the blade tips are effectively supported, the rigidity of the blades during numerical control processing is enhanced, the numerical control processing rigidity of a novel propeller hydrodynamic test model for the multi-blade ship with extremely weak rigidity is ensured, the rigidity of the blades is ensured, the angular positioning of two-side processing is ensured, the clamping and supporting in the processing process are ensured, and by adopting the method, can efficiently finish the processing of the novel multi-blade marine propeller hydrodynamic test model with high quality, the technology can also be popularized and applied to the processing of the ship propeller model similar to the multi-blade weak rigidity.
Drawings
FIG. 1 is a schematic view of a model of a multi-bladed marine propeller;
FIG. 2 is a front view of a blank of the present invention design;
FIG. 3 is a side view of a blank of the present invention design;
FIG. 4 is a schematic view of a blank designed by the present invention with a small stage.
Detailed Description
The numerical control machining method for the propeller model for the multi-bladed ship according to the present invention will be further described with reference to the following specific examples and the drawings, but the present invention is not limited to the following examples.
Example 1
The numerical control machining method of the propeller model for the multi-paddle ship provided by the invention is successfully verified in the scaling model of the weak rigid propeller for the multi-paddle ship, and the machined propeller model is used for hydrodynamic tests. The marine propeller blade with the novel geometric profile is larger than 10 blades, the bending degree of the blade is large, the blade is in a knife-shaped shape, the diameter of a propeller hub is only 0.15 times of the diameter of the propeller, and the blades are uniformly distributed along the propeller hub. The numerical control machining method of the propeller model for the multi-propeller ship comprises the following steps:
(1) designing a blank, wherein the blank is a cylindrical blank enveloping a propeller model for a multi-paddle ship, an annular convex edge is arranged on the periphery of a cylinder at the lower part of the cylindrical blank to form an outer ring large process table, and two axial through holes which are radially symmetrical are machined on the outer ring large process table and used for ensuring the consistency of angular references during two-side machining, as shown in fig. 2 and 3.
(2) And arranging a small process table between the large process table of the outer ring and each blade tip, and connecting the large process table of the outer ring with each blade tip at a connecting part of 2-3mm as shown in figure 4. The large process table and the small process table on the outer ring are used for supporting and clamping parts, and are mainly connected with the blade tips of each blade directly or indirectly to effectively support the blade tips and enhance the rigidity of the blades during numerical control machining. Programming a numerical control program, and simulating the numerical control program;
(3) five-coordinate high-speed milling rough machining, semi-finish machining and finish machining;
sawing off the process table, and clamping and polishing.
Claims (3)
1. A numerical control machining method of a propeller model for a multi-blade ship is characterized by comprising the following steps: the method comprises the following steps:
(1) design blank
The method comprises the following steps that a cylindrical blank enveloping a propeller model for a multi-blade ship is adopted, an annular convex edge is arranged on the periphery of a cylinder at the lower part of the cylindrical blank to form an outer ring large process table, and two axial through holes which are radially symmetrical are machined on the outer ring large process table and used for ensuring the consistency of angular references when two sides of blades are machined;
(2) a small process table is arranged between the large process table of the outer ring and each blade tip, the small process table connects the large process table of the outer ring with each blade tip, the number of the small process tables is the same as that of the blades, and the positions of the small process tables correspond to the positions of the blade tips one by one;
(3) and milling the shape of the blade on one side of the part where the blade tip is connected with the small process table under the condition of ensuring the continuous connection part, sawing off the large process table and the small process table on the outer ring by a fitter after the processing is finished, and then filing the blade in place by the fitter according to the milled blade tip shape as a reference for the fitter so as to ensure the shape of the blade tip.
2. The numerical control machining method of the propeller model for the multi-blade ship according to claim 1, characterized by comprising the following steps of: the width of the small process table is 2-3mm, and the thickness of the small process table is 2-3 mm.
3. The numerical control machining method of the propeller model for the multi-blade ship according to claim 1, characterized by comprising the following steps of: the number of the blades of the propeller model for the multi-blade ship is more than 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711028692.0A CN109213081B (en) | 2017-10-29 | 2017-10-29 | Numerical control machining method of propeller model for multi-blade ship |
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| CN201711028692.0A CN109213081B (en) | 2017-10-29 | 2017-10-29 | Numerical control machining method of propeller model for multi-blade ship |
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| CN109213081A CN109213081A (en) | 2019-01-15 |
| CN109213081B true CN109213081B (en) | 2020-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110850810B (en) * | 2019-11-19 | 2021-02-02 | 中国航空制造技术研究院 | Finish machining registration method based on double-reference constraint |
| CN111830908B (en) * | 2020-06-17 | 2021-06-15 | 上海烟草机械有限责任公司 | Cylindrical envelope tool path generation method, system, terminal and medium based on two-dimensional linear graph |
| CN114043175B (en) * | 2021-11-26 | 2023-01-24 | 山西汾西重工有限责任公司 | Propeller machining method, device and system and computer storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002205223A (en) * | 2001-01-11 | 2002-07-23 | Seiko Epson Corp | Cutting blade manufacturing method and cutter |
| CN102935582A (en) * | 2012-11-16 | 2013-02-20 | 哈尔滨汽轮机厂有限责任公司 | Processing method of large blade with tiepiece boss and bone type shroud ring structure of turbine |
| CN104014983A (en) * | 2014-05-29 | 2014-09-03 | 哈尔滨工业大学（威海） | Method for machining ducted propeller |
| CN105619036A (en) * | 2014-10-31 | 2016-06-01 | 陕西天财工程造价咨询有限公司 | Axial flow pump blade machining method |
| CN105904169A (en) * | 2016-05-03 | 2016-08-31 | 上海应用技术学院 | Manufacturing process of ultra-long blade complex curved surface integral impeller made of aluminum alloy material |
| CN106392491A (en) * | 2016-11-16 | 2017-02-15 | 贵州黎阳航空动力有限公司 | Processing method of inlet and outlet sides of complex compressor blade |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2929154B1 (en) * | 2008-03-31 | 2010-04-23 | Snecma | IMPROVED METHOD FOR MANUFACTURING A MONOBLOC AUBING DISK, WITH PROVISIONAL RING FOR MAINTAINING BLADES REMOVED BEFORE MILLING FINISHING STEP |
| JP5734392B2 (en) * | 2013-11-01 | 2015-06-17 | ファナック株式会社 | Impeller, impeller cutting jig, and impeller machining method |
-
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- 2017-10-29 CN CN201711028692.0A patent/CN109213081B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002205223A (en) * | 2001-01-11 | 2002-07-23 | Seiko Epson Corp | Cutting blade manufacturing method and cutter |
| CN102935582A (en) * | 2012-11-16 | 2013-02-20 | 哈尔滨汽轮机厂有限责任公司 | Processing method of large blade with tiepiece boss and bone type shroud ring structure of turbine |
| CN104014983A (en) * | 2014-05-29 | 2014-09-03 | 哈尔滨工业大学（威海） | Method for machining ducted propeller |
| CN105619036A (en) * | 2014-10-31 | 2016-06-01 | 陕西天财工程造价咨询有限公司 | Axial flow pump blade machining method |
| CN105904169A (en) * | 2016-05-03 | 2016-08-31 | 上海应用技术学院 | Manufacturing process of ultra-long blade complex curved surface integral impeller made of aluminum alloy material |
| CN106392491A (en) * | 2016-11-16 | 2017-02-15 | 贵州黎阳航空动力有限公司 | Processing method of inlet and outlet sides of complex compressor blade |
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