CN110253060B - Method for processing inclined plane boss - Google Patents
Method for processing inclined plane boss Download PDFInfo
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- CN110253060B CN110253060B CN201910666503.5A CN201910666503A CN110253060B CN 110253060 B CN110253060 B CN 110253060B CN 201910666503 A CN201910666503 A CN 201910666503A CN 110253060 B CN110253060 B CN 110253060B
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Abstract
The invention discloses a method for processing a bevel boss, which comprises the following steps: removing allowance of the peripheral part area of the boss; finely processing the boss, wherein the residual height is less than 0.03mm in the processing process; and (3) finely machining the outer inclined plane area of the boss, wherein the residual height is less than 0.03mm in the machining process. In the machining process, the machining area is divided into the outer peripheral part of the boss for removing allowance, and the machining area of the boss and the outer inclined plane area of the boss can be machined better aiming at the characteristics of different areas so as to shorten the machining time; meanwhile, in the process of fine machining the boss, the residual height is controlled within 0.03mm, and when the outer inclined plane area of the boss is fine machined, the residual height is also controlled within 0.03 mm; the residual height is less than the residual height in the prior art, so that the surface processing quality of the inclined plane boss can be improved, the manual grinding operation is avoided, the processing quality is improved, and the processing time is shortened.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a machining method of an inclined plane boss.
Background
In order to reduce the weight of parts and improve the fuel efficiency and thrust-weight ratio of an engine, the weight reduction design is often carried out on the structure of engine parts, so that the profile structure can be irregular, and the final requirements can be met by multiple steps or multiple methods at the same time.
In the prior art, when the inclined plane boss is machined, a three-axis machine tool is generally adopted for machining, and as large allowance needs to be removed between adjacent bosses, the three-axis machining mode is long in time consumption and poor in machining quality, and cannot meet the design requirement; or the five-axis machine tool is adopted to process completely in order to meet the design requirement, but the five-axis machine tool is usually the key equipment of a production unit, the production load is large, the time consumption of the numerical control processing program of the inclined plane boss structure is long, the processing time of a single procedure is too long, the circulation of parts is slow, the production delivery is influenced, the production resources can be occupied for a long time, and the balance of the production units on the key production resources is not facilitated.
In summary, how to provide a method for machining an inclined plane boss with high machining efficiency and good machining quality is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a method for processing an inclined plane boss, which can improve the processing efficiency and the processing quality of the inclined plane boss.
In order to achieve the above purpose, the invention provides the following technical scheme:
a method for processing a bevel boss comprises the following steps:
removing allowance of the peripheral part area of the boss;
finely processing the boss, wherein the residual height is less than 0.03mm in the processing process;
and (3) finely machining the outer inclined plane area of the boss, wherein the residual height is less than 0.03mm in the machining process.
Preferably, the removing of the margin of the outer peripheral region of the boss includes:
and removing the allowance of the peripheral part area of the boss by adopting a five-axis machining mode.
Preferably, the removing of the margin from the outer peripheral region of the boss further includes:
the single processing depth ranges from 2mm to 3 mm.
Preferably, the removing of the margin from the outer peripheral region of the boss further includes:
a flat bottom solid corn mill is used and has a diameter in the range of 5mm to 12 mm.
Preferably, the finishing of the boss comprises:
the spacing between adjacent feed paths is less than 1 mm.
Preferably, the finish machining of the boss further comprises:
a ball nose mill is used, and the diameter of the ball nose mill ranges from 5mm to 7 mm.
Preferably, said finishing the outer chamfer region of said boss comprises:
the spacing between adjacent feed paths is less than 1 mm.
Preferably, the finishing of the outer bevel area of the boss further comprises:
a ball end mill is used, and the diameter range of the ball end mill is 5mm to 7 mm.
Preferably, the finishing of the outer bevel area of the boss further comprises:
the rotating speed of the main shaft is 800r/min-1500r/min, and the feeding speed is 30mm/min-50 mm/min.
The invention provides a method for processing a bevel boss, which comprises the following steps: removing allowance of the peripheral part area of the boss; finely processing the boss, wherein the residual height is less than 0.03mm in the processing process; and (3) finely machining the outer inclined plane area of the boss, wherein the residual height is less than 0.03mm in the machining process.
In the machining process, the machining area is divided into the outer peripheral part of the boss, the machining area of the boss and the outer inclined plane area of the boss, which are subjected to allowance removal, so that the machining can be better performed according to the characteristics of different areas, and the machining time is shortened; meanwhile, in the process of fine machining the boss, the residual height is controlled within 0.03mm, and when the outer inclined plane area of the boss is fine machined, the residual height is also controlled within 0.03 mm; the residual height is less than the residual height in the prior art, so that the surface processing quality of the inclined plane boss can be improved, the manual grinding operation is avoided, the processing quality is improved, and the processing time is shortened.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a method for machining a bevel boss according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a beveled boss machined using the method of FIG. 1;
FIG. 3 is a cross-sectional view of the beveled boss of FIG. 2;
FIG. 4 is a schematic view of the divided regions during the bevel boss machining process;
fig. 5 is a schematic view of a feed path during a bevel boss machining process.
In FIGS. 1-5:
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a method for processing the inclined plane boss so as to improve the processing quality and the processing efficiency of the inclined plane boss.
Referring to fig. 1-5, fig. 1 is a schematic flow chart illustrating a method for machining a bevel boss according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a beveled boss machined using the method of FIG. 1; FIG. 3 is a cross-sectional view of the beveled boss of FIG. 2; FIG. 4 is a schematic view of the divided regions during the bevel boss machining process; fig. 5 is a schematic view of a feed path during a bevel boss machining process.
The invention provides a method for processing a bevel boss, which comprises the following steps:
in step S1, a margin is removed from the outer peripheral region of the boss 1.
In step S1, a margin is removed from the outer peripheral region of the boss 1, and when there are a plurality of bosses 1 as shown in part a in fig. 4, the outer peripheral region of the boss 1 is a region between adjacent bosses 1, and a machining region of the boss 1 is reserved after the margin is removed from the outer peripheral region of the boss 1.
Preferably, during machining, the tool is machined in one direction in order to avoid the occurrence of a tool-receiving table.
Preferably, it may be down-milling.
Preferably, the rotation speed of the main shaft is 800 to 1500r/min and the feed speed is 50 to 80mm/min in the process of machining the outer peripheral region of the boss 1.
And step S2, finely machining the boss 1, wherein the residual height is less than 0.03mm in the machining process.
In the step S2, the boss 1 is finished to ensure the diameter of the boss 1, and preferably, as shown in fig. 5, the tool may be milled around the outer periphery of the boss 1, and as shown in fig. 4, the machining area of the boss 1 is indicated by B in fig. 4.
Preferably, in the process of processing the boss 1, the rotating speed of the main shaft is 800r/min-1500r/min, and the feeding speed is 30mm/min-50 mm/min.
And step S3, finishing the outer bevel area of the boss 1, wherein the residual height is less than 0.03mm in the machining process.
In the above step S3, as shown in fig. 4, the outer bevel area of the boss 1 is shown as part C in fig. 4, and during the machining process, the machining path is shown in fig. 5.
Preferably, in the machining process, the inclined plane and the transition angle between the boss 1 and the inclined plane are formed by adopting the action of three-axis simultaneous.
In the machining process, the machining area is divided into the outer periphery of the boss 1 for removing the allowance, the machining area of the boss 1 and the outer inclined plane area of the boss 1, so that different machining modes can be better selected for machining according to the characteristics of different areas, and the machining time is shortened; meanwhile, in the process of finish machining the boss 1, the residual height is controlled within 0.03mm, and when the outer inclined plane area of the boss 1 is finish machined, the residual height is also controlled within 0.03 mm; the residual height is smaller than the residual height in the prior art, so that the processing quality of the surface of the inclined plane boss and the surface of the inclined plane can be improved, the design requirement can be directly met after the processing is finished, the manual polishing operation is avoided, the processing quality is improved, and the processing time is shortened.
In addition to the above embodiments, in order to further shorten the processing time, in step S1, a five-axis processing method may be adopted to remove the margin from the outer peripheral region of the boss 1.
When the machining is carried out by adopting a five-axis machining mode, the part is clamped firstly, in the machining process, the part is rotated according to the angle of the inclined plane, the inclined plane is perpendicular to the axis in the vertical direction, and large allowance cutting is carried out.
Preferably, in the process of machining the inclined plane boss by adopting a five-axis machining mode, the single machining depth range is 2mm to 3 mm.
In order to further increase the processing speed, a flat bottom solid corn milling cutter with a diameter ranging from 5mm to 12mm can be preferably used.
Preferably, the flat bottom solid corn milling cutter has a diameter of 10 mm.
Preferably, the flat-bottom integral corn milling cutter is made of hard alloy.
The flat-bottom integral hard alloy corn milling cutter with the diameter of 10mm can obviously reduce the abrasion of the cutter, prolong the service life of the cutter, avoid frequent cutter changing operation and improve the processing efficiency and reduce the production cost.
In addition to the above embodiment, in order to further improve the processing quality, in step S2, the distance between adjacent cutting paths may be smaller than 1 mm.
Preferably, the spacing between adjacent feed paths is 0.4 mm.
In step S2, the tool used is a ball end mill, and the diameter of the ball end mill ranges from 5mm to 7 mm.
Preferably, the ball nose mill has a diameter of 6 mm.
Of course, in the process of machining, the diameter of the ball end mill is related to the size of the inclined plane boss to be machined, and is determined according to actual conditions, and when the boss 1 is milled in the machining area of the boss 1 in a winding mode, the size of the transfer angle between the boss 1 and the inclined plane can be preferably ensured at one time.
In addition to the above embodiment, in step S3, in order to further improve the processing quality of the outer bevel region of the boss 1, the distance between the adjacent feed paths may be made smaller than 1 mm.
Preferably, the spacing between adjacent feed paths is 0.4 mm.
In step S3, the machining may be performed using a ball end mill, and the diameter of the ball end mill ranges from 5mm to 7 mm.
Preferably, the ball nose mill has a diameter of 6 mm.
Preferably, the same tool is used in step S2 and step S3, so that frequent tool changing operations can be avoided.
In step S3, the spindle speed may be set to 800r/min-1500r/min and the feed rate may be set to 30mm/min-50mm/min during the process of machining the outer bevel area of the boss 1.
In addition, the processing method of the inclined plane boss is carried out based on the existing CNC programming software in the programming process, and has the characteristics of rapid and visual tool route formation, strong universality of post-processing program and convenience in reading of all numerical control equipment. The method has the advantages that the selected surface to be processed is directly driven to generate the feed path through the driving instruction of the software interface, the operation is simple, the height of the residual materials during the finish processing of the inclined surface is set in the processing parameter control, the smaller the height of the residual materials is, the higher the surface quality is, but the processing time is doubled, and the economic optimum value can be selected for processing according to the requirements of design on the surface quality and the processing time.
The method for processing the inclined plane boss provided by the embodiment is suitable for the condition that the boss is not perpendicular to the bottom surface, and of course, the method can also be suitable for other structures and is determined according to actual conditions.
The processing method of the inclined plane boss simplifies the programming process of a five-axis numerical milling processing program, improves the programming efficiency, simplifies the numerical milling processing steps by adopting the feed path, and ensures the rapid molding of the inclined plane boss. Meanwhile, the five-axis equipment can simplify the processing procedure of the three-axis equipment when the peripheral part area of the boss 1 is processed, the efficiency is improved, the five-axis equipment and the three-axis equipment can both bear the finish machining of the outer inclined plane positions of the boss 1 and the boss 1, and the balance of production resources is facilitated. The corn milling cutter with the coating has higher wear resistance when realizing large-allowance cutting of high-temperature alloy materials, and saves the cutter cost.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.
The method for processing the inclined plane boss provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (3)
1. A method for processing an inclined plane boss is characterized by comprising the following steps:
removing allowance of the peripheral part area of the boss (1);
finely machining the boss (1), wherein the residual height is less than 0.03mm in the machining process;
finely machining the outer inclined plane area of the boss (1), wherein the residual height is less than 0.03mm in the machining process;
the removing of the allowance of the peripheral part area of the boss (1) comprises the following steps:
removing allowance of the peripheral part area of the boss (1) by adopting a five-axis machining mode; using a flat-bottom whole corn milling cutter, wherein the diameter of the corn milling cutter ranges from 5mm to 12 mm;
the finish machining of the boss (1) comprises:
the distance between adjacent feed paths is less than 1 mm;
using a ball end mill, wherein the diameter range of the ball end mill is 5 mm-7 mm;
the finishing of the outer bevel area of the boss (1) comprises:
the distance between adjacent feed paths is smaller than 1mm, a ball end milling cutter is used, and the diameter range of the ball end milling cutter is 5mm to 7 mm.
2. The method for processing a beveled boss according to claim 1, wherein the removing of the margin of the outer peripheral region of the boss (1) further comprises:
the single processing depth ranges from 2mm to 3 mm.
3. The method of claim 1, wherein said finishing the outer chamfer region of the boss (1) further comprises:
the rotating speed of the main shaft is 800r/min-1500r/min, and the feeding speed is 30mm/min-50 mm/min.
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| CN201910666503.5A CN110253060B (en) | 2019-07-23 | 2019-07-23 | Method for processing inclined plane boss |
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| FR2894497A3 (en) * | 2005-12-08 | 2007-06-15 | Renault Sas | Milling procedure and tool for flat surface machining, e.g. for engine crankcase, uses blank machining stage made up of sub-stages with successive axial increments |
| CN104199383B (en) * | 2014-08-05 | 2017-01-11 | 南京航空航天大学 | Aviation engine case part milling blank automatic generation method |
| CN104199386B (en) * | 2014-09-02 | 2017-04-19 | 南京航空航天大学 | Feature based cartridge receiver lug boss top surface milling track rapid generation method |
| CN105290475B (en) * | 2015-11-05 | 2018-05-29 | 西安航空动力股份有限公司 | A kind of titanium alloy fan blade profile milling method |
| CN107717030B (en) * | 2017-11-24 | 2019-01-22 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method of the long boss of Titanium alloy TA15 thin-walled |
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