CN112676623B - Interference-free directional milling method for turbocharger impeller - Google Patents
Interference-free directional milling method for turbocharger impeller Download PDFInfo
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- CN112676623B CN112676623B CN202011499507.8A CN202011499507A CN112676623B CN 112676623 B CN112676623 B CN 112676623B CN 202011499507 A CN202011499507 A CN 202011499507A CN 112676623 B CN112676623 B CN 112676623B
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Abstract
The invention discloses an interference-free directional milling method for a turbocharger impeller, which can prevent a cutter from interfering with a blade. An interference-free directional milling method for a turbocharger impeller is characterized in that the upper layer of an impeller blade is roughened, a straight shank end mill is adopted, a feed program is set according to the actual specification of the straight shank end mill, and the upper layer of the impeller blade is roughened in a fixed-axis milling mode; the lower layer of the impeller blade is roughened, a straight shank end mill is adopted to establish a tapered virtual cutter, the diameter of a cutter head of the virtual cutter is equal to that of a cutter head of an actual straight shank end mill, a feed program is set according to the specification of the virtual cutter, the lower layer of the impeller blade is roughened in a fixed-axis milling mode, the straight shank end mill is milled from outside to inside in a gradient manner in the actual feed process of the straight shank end mill, the milling area is gradually reduced, and the straight shank end mill and the impeller blade are completely free of interference in the inward milling process.
Description
Technical Field
The invention relates to the technical field of turbochargers, in particular to an interference-free directional milling method for a turbocharger impeller.
Background
The impeller is used as a key part of power machinery and is widely applied to the field of aerospace. As can be seen from the geometric structure and the technological process of the impeller, the constraint conditions of the processing track planning are more when the integral impeller is processed, and the space between adjacent blades is smaller.
At present, in the industry, a widely-applied directional roughing method is adopted, an inward concave tool path is generated in the generation process of a lower tool path, the plane concave amount of the tool path is between 0 and 0.2mm, although the concave amount is small, collision interference between an upper tool bar and an upper processed blank can be caused if the concave amount is not adjusted in the physical processing, namely, part of a tool interferes with part of a workpiece due to the error of the tool path and the too narrow feeding space, and meanwhile, the interference cannot be effectively solved under the conventional function of software due to the small plane concave amount, so that a processing method for generating the interference-free tool path is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an interference-free directional milling method for a turbocharger impeller, which can prevent a cutter from interfering with a blade.
The purpose of the invention is realized as follows:
an interference-free directional milling method for a turbocharger impeller,
the upper layer of the impeller blade is rough
Adopting a straight shank end mill, setting a feed program according to the actual specification of the straight shank end mill, and roughing the upper layer of the impeller blade in a fixed-axis milling mode;
the lower layer of the impeller blade is opened roughly
The method comprises the steps of establishing a virtual cutter with taper by adopting a straight shank end mill, setting a feed program according to the specification of the virtual cutter, roughing the lower layer of an impeller blade in a fixed-axis milling mode, milling the straight shank end mill from outside to inside in a gradient manner in the actual feed process of the straight shank end mill, and gradually reducing a milling area so that the straight shank end mill has no interference with the impeller blade completely in the inward milling process.
Preferably, the taper of the virtual cutter is 0.5 to 2 degrees.
Preferably, the taper of the virtual cutter is 1 degree.
Due to the adoption of the technical scheme, the tool path track of the invention is gradually retracted inwards, so that the collision between the tool and the blade is avoided. And the straight shank end mill is used in the actual machining process, so that the problem of collision interference between the cutter and the upper-layer machined blank is solved.
Drawings
FIG. 1 is a schematic drawing of a roughing trajectory of a D25 straight shank end mill;
FIG. 2 is a schematic view of a D25 straight shank end mill;
FIG. 3 is a schematic view of a D25 virtual cutter (taper 1 degree);
FIG. 4 is a schematic diagram of a virtual tool rough path.
Detailed Description
Examples
The method comprises the steps of roughing the blades in a fixed shaft mode, building a virtual cutter with taper (1 degree) when the lower layer of the blades is roughened by using a straight shank end mill, calculating by software, and generating a program, wherein the generated cutter path track is gradually retracted inwards, so that the cutter and the blades are prevented from colliding. And the straight shank end mill is used in the actual machining process, so that the problem of collision interference between the cutter and the upper-layer machined blank is solved.
When the cutter is opened coarsely in a directional mode, the cutter interference problem of the end mill is avoided by increasing the taper of the cutter and establishing a virtual cutter. For example: the impeller is coarsened by using a straight shank end mill (figure 2) of D25, and a cutter path track generated by software calculation is uniform and milled inwards as shown in figure 1, no gradient exists, and a cutter collides with a blade. Establishing a virtual cutter (figure 3) with 1-degree (single-side) taper by using the end mill of the D25, and generating a program track by using the virtual cutter, wherein the track is milled inwards in a gradient manner as shown in figure 4, the milling area is smaller the further the track is, and the cutter and the blade have no interference.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (2)
1. An interference-free directional milling method for a turbocharger impeller is characterized by comprising the following steps:
the upper layer of the impeller blade is rough
Adopting a straight shank end mill, setting a feed program according to the actual specification of the straight shank end mill, and roughing the upper layer of the impeller blade in a fixed-axis milling mode;
the lower layer of the impeller blade is opened roughly
The method comprises the following steps of establishing a virtual cutter with taper by adopting a straight shank end mill, setting a feed program according to the specification of the virtual cutter, and roughing the lower layer of an impeller blade in a fixed-axis milling mode, wherein the diameter of a cutter head of the virtual cutter is equal to that of the cutter head of an actual straight shank end mill, and in the actual feed process of the straight shank end mill, the straight shank end mill mills in a gradient manner from outside to inside, and the milling area is gradually reduced, so that the straight shank end mill and the impeller blade are completely free of interference in the inward milling process;
the taper of the virtual cutter is 0.5-2 degrees.
2. The interference-free directional milling method of the turbocharger impeller according to claim 1, characterized in that: the taper of the virtual cutter is 1 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011499507.8A CN112676623B (en) | 2020-12-18 | 2020-12-18 | Interference-free directional milling method for turbocharger impeller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011499507.8A CN112676623B (en) | 2020-12-18 | 2020-12-18 | Interference-free directional milling method for turbocharger impeller |
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| CN112676623A CN112676623A (en) | 2021-04-20 |
| CN112676623B true CN112676623B (en) | 2023-03-24 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584607A (en) * | 1991-03-04 | 1993-04-06 | General Electric Co <Ge> | Repair of air foil edge |
| CN101323030A (en) * | 2008-07-17 | 2008-12-17 | 西北工业大学 | Radial direction milling method of thin wall blade edge head curved face |
| CN101590587A (en) * | 2008-05-29 | 2009-12-02 | 上海电气集团股份有限公司 | A kind of integral impeller processing method |
| CN109352048A (en) * | 2018-12-12 | 2019-02-19 | 重庆江增船舶重工有限公司 | A kind of space dead axle milling method of monoblock type titanium alloy compression impellor |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7377037B2 (en) * | 2004-05-25 | 2008-05-27 | General Electric Company | Fillet machining method without adaptive probing |
| CN101062526A (en) * | 2006-04-27 | 2007-10-31 | 中国兵器工业集团第七0研究所 | Milling method for turbocharger air compressor blade wheel |
| CN100582975C (en) * | 2008-06-19 | 2010-01-20 | 上海交通大学 | Method for planning five-axis numerical control to process safety shortest cutting tool length |
| AT512270B1 (en) * | 2011-12-12 | 2014-08-15 | Liezen Und Giesserei Gesmbh Maschf | RAIL-PROCESSING DEVICE THROUGH CONTROLLED IMPROVEMENT OF THE MACHINING TOOLS |
| CN104384586B (en) * | 2014-09-30 | 2016-08-24 | 四川泛华航空仪表电器有限公司 | The method of four-shaft numerically controlled milling machine tool processing integral wheel |
| CN106853598B (en) * | 2015-12-08 | 2019-01-18 | 华南理工大学 | A kind of cylinder emery wheel curve surface grinding method of virtual ball knife radius |
| CN106216747A (en) * | 2016-07-22 | 2016-12-14 | 河北师范大学 | A kind of integral wheel 5-shaft linkage numerical control cut track path processing method |
| CN109343468B (en) * | 2018-10-25 | 2020-07-14 | 华中科技大学 | Projection offset-based blade multi-axis track generation method |
| CN109570591A (en) * | 2019-01-08 | 2019-04-05 | 湘潭大学 | Centrifugal impeller cutting working method and device and centrifugal impeller process equipment |
| CN111975071A (en) * | 2020-08-06 | 2020-11-24 | 合肥波林新材料股份有限公司 | Deburring method for notch of part |
-
2020
- 2020-12-18 CN CN202011499507.8A patent/CN112676623B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0584607A (en) * | 1991-03-04 | 1993-04-06 | General Electric Co <Ge> | Repair of air foil edge |
| CN101590587A (en) * | 2008-05-29 | 2009-12-02 | 上海电气集团股份有限公司 | A kind of integral impeller processing method |
| CN101323030A (en) * | 2008-07-17 | 2008-12-17 | 西北工业大学 | Radial direction milling method of thin wall blade edge head curved face |
| CN109352048A (en) * | 2018-12-12 | 2019-02-19 | 重庆江增船舶重工有限公司 | A kind of space dead axle milling method of monoblock type titanium alloy compression impellor |
Non-Patent Citations (1)
| Title |
|---|
| 整体叶轮的多轴数控加工编程;贾健明等;《航天制造技术》(第06期);3-8 * |
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