CN110293253A - A kind of cycloid milling rough machining method of engine crankcase class part - Google Patents
A kind of cycloid milling rough machining method of engine crankcase class part Download PDFInfo
- Publication number
- CN110293253A CN110293253A CN201910551425.4A CN201910551425A CN110293253A CN 110293253 A CN110293253 A CN 110293253A CN 201910551425 A CN201910551425 A CN 201910551425A CN 110293253 A CN110293253 A CN 110293253A
- Authority
- CN
- China
- Prior art keywords
- cycloid
- region
- engine crankcase
- class part
- boss
- 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.)
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Classifications
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- 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
- B23C3/28—Grooving workpieces
Abstract
The invention discloses a kind of cycloids of engine crankcase class part to mill rough machining method, comprising the following steps: Step 1: carrying out region division by boss feature to casing part to be processed；Step 2: carrying out cycloid milling to ready-portioned region opens lower knife groove；Step 3: carrying out cycloid Milling Machining to the region for holding lower knife groove successfully；Step 4: carrying out cycloid Milling Machining to unprocessed region remaining around boss.Method of the invention is in casing roughing, material surplus is removed using cycloid milling mode as far as possible, avoids the milling of closed area slot and the biggish tooth matching angle of Flank machining, while improving cutter radiating condition, the rate of wear of cutter can be reduced to greatest extent, improve the processing efficiency of casing class part.
Description
Technical field
The invention belongs to field of machining, and in particular to a kind of cycloid milling roughing side of engine crankcase class part
Method.
Background technique
Traditional casing outer mold surface rough milling, for semiclosed region using Flank machining mode, in order to guarantee compared with
High processing efficiency, using big radial cutting-in, the Processing Strategies of smaller feeding, such processing method leads to cutter and workpiece
Tooth matching angle is big, and the mechanical load that cutter receives is big, while biggish mesh regional causes to radiate bad, exacerbates the mill of cutter
Damage.For closed area, then lower knife groove is first processed using slot Milling Machining mode, after lower knife groove is held successfully, then side milling mode is used to add
Work.During slot Milling Machining, cutter cornerite reaches 180 degree, and cutter load is big, and heat dissipation performance is not good enough, and tool wear is more tight
Weight.
Summary of the invention
For in the prior art the technical issues of, the present invention provides a kind of milling of the cycloid of engine crankcase class part it is thick plus
Work method improves cutter heat dissipation performance its object is to reduce cutter load, extends cutter life.
In order to solve the above technical problems, the present invention is achieved by the following technical programs:
A kind of cycloid milling rough machining method of engine crankcase class part, comprising the following steps:
Step 1: carrying out region division by boss feature to casing part to be processed；
Step 2: carrying out cycloid milling to ready-portioned region opens lower knife groove；
Step 3: carrying out cycloid Milling Machining to the region for holding lower knife groove successfully；
Step 4: carrying out cycloid Milling Machining to unprocessed region remaining around boss.
Further, in the step 1, according to the specific location of boss, it is by the region division between adjacent two boss
One region.
Further, in the step 1, the boundary in the region of division and the overlapping margins of boss.
Further, in the step 2, when opening lower knife groove, the boundary of lower knife groove and the overlapping margins of boss.
Further, the width of the lower knife groove is not less than 2~3 times of cutter diameter.
Further, in the step 3, when cycloid Milling Machining, cutting for cutter is a little located in lower knife groove.
Further, in the step 3, cutter cuts the medium position for being a little located at lower knife groove.
Further, in the step 4, when processing to unprocessed region, cutting for cutter is a little located at step 3
In in manufactured region.
Further, in the step 4, cutter cuts the medium position for being a little located at undressed zone boundary.
Further, when the cycloid Milling Machining, the cutting speed of cycloid milling is 100m/min-150m/min, feeding speed
Degree is 600mm/min-1000mm/min.
Compared with prior art, the present invention at least have the advantages that method of the invention in casing roughing,
Machining of cycloid region has first been divided according to boss, lower knife groove has been opened using first cycloid milling to each ready-portioned region, then adopt
With the processing method in the cycloid Milling Machining region, remaining undressed region also uses cycloid Milling Machining around boss, entire to process
Process all uses cycloid milling mode to remove material surplus, avoids slot milling and the biggish tooth matching angle of Flank machining, improves simultaneously
Cutter radiating condition can reduce the rate of wear of cutter to greatest extent, improve the processing efficiency of casing class part.
Further, the overlapping margins on the boundary in the region of division and boss, so that boss periphery residue surplus is most
It is small, it is maximum to make machining of cycloid region, and then preferably improve cutter radiating condition, the abrasion speed of cutter can be reduced to greatest extent
Degree improves the processing efficiency of casing class part.
Further, the width of cutter groove is not less than 2~3 times of cutter diameter, to guarantee that cutter has preferable chip removal and dissipates
Hot property.
Further, cutter cut a little be located at lower knife groove medium position, during avoiding cutter from cutting to greatest extent
Knife phenomenon occurs.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is to schematically show model main view before and after a casing roughing；
Fig. 2 is that casing type of the present invention face cycloid mills region division；
Fig. 3 is that lower knife groove schematic diagram is opened in cycloid of the present invention milling；
Fig. 4 is cycloid milling machine casket type of the present invention face schematic diagram；
Fig. 5 is that cycloid of the present invention mills remaining area around boss feature.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 1 schematically shows model main view before and after a typical casing roughing, and the blank before roughing is turning
Part afterwards, as indicated by a broken line in fig. 1, there are three boss features, respectively boss 1, boss 2 in the casing type face after roughing for profile
With boss 3.
As a certain preferred embodiment of the invention, a kind of cycloid milling rough machining method of engine crankcase class part, packet
Include following steps:
Step 1: carrying out region division by boss feature to casing part to be processed；Method particularly includes: according to boss
Specific location, by the region division between adjacent two boss be a region, and divide region boundary and boss boundary
It is overlapped；
About step 1 reference can be made to shown in Fig. 2, which is divided into 3 regions, respectively region 1, region 2 and region
3.The left margin in region 1 is overlapped with the right margin of boss 1, and the right margin in region 1 is overlapped with the left margin of boss 2.Similarly, region
2 left margin is overlapped with the right margin of boss 2, and the right margin in region 2 is overlapped with the left margin of boss 3；The left margin in region 3 with
The right margin of boss 3 is overlapped, and the right margin in region 3 is overlapped with the left margin of boss 1；
Step 2: carrying out cycloid milling fluting processing to ready-portioned region, lower knife groove is opened for subsequent cycloid milling machine casket type face；
Method particularly includes: when opening lower knife groove, as shown in figure 3, the boundary of lower knife groove should be lower knife groove with the overlapping margins of boss, Fig. 3
Position and corresponding cycloid open the track schematic diagram of lower knife groove, it is preferred that the width of lower knife groove is not less than 2~3 times of cutter diameter；
Step 3: carrying out cycloid Milling Machining to the region for holding lower knife groove successfully；Method particularly includes: when cycloid Milling Machining, such as Fig. 4
Shown, cutting for cutter should a little be located in the lower knife groove held successfully in advance, and Fig. 4 is cycloid milling machine casket type face track schematic diagram, preferably
, cutter cuts the medium position for being a little located at lower knife groove；
Step 4: carrying out cycloid Milling Machining to unprocessed region remaining around boss；Method particularly includes: to undressed
Region when being processed, be a little located in step 3 in manufactured region as shown in figure 5, the cycloid of cutter is cut, Fig. 5 is
Cycloid mills remaining area schematic diagram around boss feature, it is preferred that cutter cuts the middle part for being a little located at undressed zone boundary
Position.
When cycloid Milling Machining of the present invention, the cutting speed of cycloid milling is 100m/min-150m/min, and feed speed is
600mm/min-1000mm/min。
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of cycloid of engine crankcase class part mills rough machining method, which comprises the following steps:
Step 1: carrying out region division by boss feature to casing part to be processed；
Step 2: carrying out cycloid milling to ready-portioned region opens lower knife groove；
Step 3: carrying out cycloid Milling Machining to the region for holding lower knife groove successfully；
Step 4: carrying out cycloid Milling Machining to unprocessed region remaining around boss.
2. a kind of cycloid of engine crankcase class part according to claim 1 mills rough machining method, which is characterized in that institute
It states in step 1, is a region by the region division between adjacent two boss according to the specific location of boss.
3. a kind of cycloid of engine crankcase class part according to claim 2 mills rough machining method, which is characterized in that institute
It states in step 1, the boundary in the region of division and the overlapping margins of boss.
4. a kind of cycloid of engine crankcase class part according to claim 1 mills rough machining method, which is characterized in that institute
It states in step 2, when opening lower knife groove, the boundary of lower knife groove and the overlapping margins of boss.
5. a kind of cycloid of engine crankcase class part according to claim 4 mills rough machining method, which is characterized in that institute
The width for stating lower knife groove is not less than 2~3 times of cutter diameter.
6. a kind of cycloid of engine crankcase class part according to claim 1 mills rough machining method, which is characterized in that institute
It states in step 3, when cycloid Milling Machining, cutting for cutter is a little located in lower knife groove.
7. a kind of cycloid of engine crankcase class part according to claim 6 mills rough machining method, which is characterized in that institute
It states in step 3, cutter cuts the medium position for being a little located at lower knife groove.
8. a kind of cycloid of engine crankcase class part according to claim 1 mills rough machining method, which is characterized in that institute
It states in step 4, when processing to unprocessed region, cutting for cutter is a little located in step 3 in manufactured region.
9. a kind of cycloid of engine crankcase class part according to claim 8 mills rough machining method, which is characterized in that institute
It states in step 4, cutter cuts the medium position for being a little located at undressed zone boundary.
10. a kind of cycloid of described in any item engine crankcase class parts mills rough machining method according to claim 1~9,
It is characterized in that, when the cycloid Milling Machining, the cutting speed of cycloid milling is 100m/min-150m/min, and feed speed is
600mm/min-1000mm/min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551425.4A CN110293253B (en) | 2019-06-24 | 2019-06-24 | Cycloid milling rough machining method for engine case parts |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910551425.4A CN110293253B (en) | 2019-06-24 | 2019-06-24 | Cycloid milling rough machining method for engine case parts |
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| CN110293253A true CN110293253A (en) | 2019-10-01 |
| CN110293253B CN110293253B (en) | 2021-03-12 |
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| CN201910551425.4A Active CN110293253B (en) | 2019-06-24 | 2019-06-24 | Cycloid milling rough machining method for engine case parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110716494A (en) * | 2019-11-13 | 2020-01-21 | 中国航发动力股份有限公司 | Tool parameter identification method and cycloid machining parameter optimization method based on tool parameters |
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| CN103264183A (en) * | 2013-05-23 | 2013-08-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Complex receiver part shape cone following milling method |
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| US20180024531A1 (en) * | 2012-06-01 | 2018-01-25 | D.P. Technology Corp. | Profit milling |
| CN107717029A (en) * | 2017-11-24 | 2018-02-23 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of opposite opened casing high-efficiency milling processing technology |
| CN107931678A (en) * | 2017-11-24 | 2018-04-20 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of half casing taper surface high speed milling method of high temperature alloy point |
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2019
- 2019-06-24 CN CN201910551425.4A patent/CN110293253B/en active Active
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| US20180024531A1 (en) * | 2012-06-01 | 2018-01-25 | D.P. Technology Corp. | Profit milling |
| CN103264183A (en) * | 2013-05-23 | 2013-08-28 | 沈阳黎明航空发动机(集团)有限责任公司 | Complex receiver part shape cone following milling method |
| CN104090528A (en) * | 2014-06-30 | 2014-10-08 | 华南理工大学 | Method suitable for cycloid high-speed milling machining path |
| CN107717029A (en) * | 2017-11-24 | 2018-02-23 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of opposite opened casing high-efficiency milling processing technology |
| CN107931678A (en) * | 2017-11-24 | 2018-04-20 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of half casing taper surface high speed milling method of high temperature alloy point |
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| CN110716494A (en) * | 2019-11-13 | 2020-01-21 | 中国航发动力股份有限公司 | Tool parameter identification method and cycloid machining parameter optimization method based on tool parameters |
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| CN110293253B (en) | 2021-03-12 |
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