CN109014778A - A kind of numerical-control processing method of non-rotating part closure gasket groove - Google Patents
A kind of numerical-control processing method of non-rotating part closure gasket groove Download PDFInfo
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- CN109014778A CN109014778A CN201810831054.0A CN201810831054A CN109014778A CN 109014778 A CN109014778 A CN 109014778A CN 201810831054 A CN201810831054 A CN 201810831054A CN 109014778 A CN109014778 A CN 109014778A
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- annular groove
- knife
- groove
- polishing
- closure gasket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention belongs to the precision component manufacture fields of special construction, are related to a kind of numerical-control processing method of non-rotating part closure gasket groove.The present invention widens the tooling setup of knife using narrow knife in milling annular groove, first removes surplus using narrow knife, then carry out Precision Machining using wide knife, improves surface processing accuracy.In Processing Strategies, using the method by cutting side, the surface luminous intensity requirement of annular groove side ensure that.In order to further increase face seal performance, influence of the lines to sealing performance for cutting place due to slot knife is avoided, after annular groove knife process finishing, using the method for second polishing, polishes annular groove inner cylinder face.By the application of above method, the precision of closure gasket groove processing is improved, realizes the concentricity requirement of annular groove and bottom outlet, improves product hermeticity energy by changing processing lines.A kind of effective processing method has been started for the closure gasket groove processing of such non-rotating class part.
Description
Technical field
The invention belongs to the precision component manufacture fields of special construction, are related to a kind of numerical control of non-rotating part closure gasket groove
Processing method.
Background technique
Certain hydraulic sterring engine shell uses housing cylinder integrated structure design method, there is multiple close design in piston mounting holes
Seal ring slot prevents hydraulic oil from revealing to oil circuit in sealing hole, this requires closure gasket groove not only required precision with higher,
Side and inner cylinder face surface luminous intensity in annular groove is required to reach higher design requirement simultaneously.For this purpose, Related product design requirement
In annular groove with bottom outlet concentricity 0.04mm, annular groove bottom surface luminosity Ra0.8, sidewall surfaces luminosity Ra1.6, while there can be no
It is parallel to the processing lines of axially bored line.
This closure gasket groove is more rare in the housing, often has on slewing parts in the past.Slewing parts use
Turnery processing is easier to guarantee the technical indicators such as machining accuracy, surface pattern.But with the application of MBD technology, shell is set
Meter becomes increasingly complex, and according to turnery processing, parts turn imbalance inevitably results in precision and not can guarantee in process.Shell
Body processing mainly uses NC milling, and annular groove knife is processed during closure gasket groove, it is more difficult to guarantee annular groove side and bottom surface
Surface luminous intensity, simultaneously because NC milling cylindrical surface process is that main shaft interpolation algorithm forms round machining locus, it will necessarily
It causes surface pattern to be parallel to hole axial direction, influences internal oil passages sealing performance.For this purpose, such sealing ring slot number Milling Machining mistake
Cheng Zhong needs to customize special tool, formulates the milling strategy of science.How to realize the machining accuracy of each design element, changes table
Face is machined lines, and presently relevant processing method is at home and abroad not reported, and the processing of this class formation is still that machine adds row
Existing problem in the industry.
Summary of the invention
The purpose of the present invention is: the tired of hydraulic packing groove structure processing is difficult to realize in order to solve Computerized Numerical Control processing technology
Difficulty, including annular groove inside face luminosity and processing lines the problem of being difficult to ensure, the invention proposes one kind in numerical control processing, real
The high-precision processing method of existing such hydraulic packing annular groove by effectively controlling the cutting parameter of annular groove process, and is adopted
With the precise polished processing method of surface microscopic lines, realizes closure gasket groove machining accuracy, improve the sealing performance of annular groove.Meanwhile
Process is reliable and stable, also can satisfy batch production demand.
The technical scheme is that a kind of numerical-control processing method of non-rotating part closure gasket groove, includes the following steps:
Step 1: right boring functional hole bottom outlet makes functional hole bottom diameter D1 to design size；
Step 2: centering bottom outlet, narrow annular groove knife semifinishing annular groove, narrow annular groove knife knife is wide to be less than annular groove width L11mm-
2mm；
Step 3: wide annular groove knife finishes annular groove to diameter of ring groove D2, and wide annular groove knife knife is wide identical as annular groove width L1；
Step 4: whether detection annular groove and bottom outlet concentricity and three face luminosity of annular groove meet design objective；
Step 5: self-control polishing wheel, it is desirable that self-control polishing wheel thickness L2 is identical as annular groove width L1, and guarantees polishing wheel energy
It is put into annular groove, polishing paper 1 is pasted using strong adherence agent in 2, polishing wheel inside 3 on the outside of polishing wheel, and 1 granularity of polishing paper is not less than
800#, using self-control polishing wheel polishing annular groove side and bottom surface；
Step 6: using annular groove after 20 times of endoscopic observation processing, if annular groove inner surface adding there are parallel bottom outlet axis
Work vertical line road repeats step 5 until lines disappears；
Step 7: part is cleaned after polishing.
The step 2: when preliminary working annular groove, using narrow slot knife by cutting processing, each made allowance 0.1mm in three faces.
The step 3: when finishing annular groove, wide annular groove tool arc R0.25mm, and require rounding fairing.
The step 3: when finishing annular groove, according to annular groove size and tool dimension, the main shaft of process is turned
Speed, feeding parameter adjust accordingly.
The step 5: it needs to stand one day after polishing wheel bonding polishing paper.
The beneficial effects of the present invention are: the present invention is to process annular groove the processing method of non-rotating part closure gasket groove
Precision is overally improved, and the influence that the surface machinery lines for solving numerical control processing generation seals hydraulic circuit.Pass through
Roughing and fine machining strategy reduces the surface luminous intensity problem being processed and formed at one time.Meanwhile using special polishing tool, change processing
The mechanical lines on surface reduces influence of the lines to sealing.Necessity has been laid to the Precision Machining of non-rotating part closure gasket groove
Basis.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the numerical-control processing method of non-rotating part closure gasket groove；
Fig. 2 is a kind of front view of the part of close tolerance seal groove structure of the present invention；
Fig. 3 is the A-A cross-sectional view of Fig. 2 front view；
Fig. 4 is the groove structure partial enlarged view of Fig. 3；
Wherein: D1-functional hole bottom diameter, D2-diameter of ring groove, L1-annular groove width
Fig. 5 is the self-control polishing wheel schematic diagram for polishing annular groove；
Wherein: L2-self-control polishing wheel thickness；
Fig. 6 is that polishing paper pastes schematic diagram.
Wherein: 1-polishing paper, 2-polishing wheels outside, 3-polishing wheels inside
Specific embodiment
Below by specific embodiment, the present invention is further illustrated:
Please refer to Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 2 is a kind of facing for part of close tolerance seal groove structure of the invention
Figure, Fig. 3 is the A-A cross-sectional view of Fig. 2 front view, and Fig. 4 is the groove structure partial enlarged view of Fig. 3.In present embodiment, described zero
Part is hydraulic structure part, and part material is 7050 aluminium alloys, and closure gasket groove uneven design is in function bottom outlet, functional hole bottom outlet
Diameter D1 is φ 47.76mm, and diameter of ring groove D2 is φ 51.99mm, and annular groove width L1 is 3mm, and annular groove is opposite with functional hole bottom outlet
Concentricity is required in φ 0.04mm, three face photometric requirement Ra0.8 of annular groove, while requiring surface cutting lines perpendicular to bottom outlet axis
Line.
By analysis of material property and design of part, in present embodiment, the processing of certain annulus end face seal part
The step of method, is as follows:
Step 1: right boring functional hole bottom outlet D1 to design size；
This part completes the overall processing of hole in piece part, drilling and milling bottom outlet using numerical control machining center, and heavy boring, right boring bottom outlet are protected
Card functional hole bottom diameter D1 is φ 47.76+ 0 0.05Mm, luminosity Ra0.8.
Step 2: centering bottom outlet, narrow annular groove knife semifinishing annular groove, narrow annular groove knife knife is wide to be less than groove width L11mm-2mm；
Centering bottom outlet first prolongs radial cutting, cutting-in 0.2mm using narrow annular groove knife semifinishing annular groove, then prolong it is axial into
Knife, each 0.2mm of depth of cut according to said method remove annular groove surplus, while guaranteeing two sides of annular groove and bottom surface surplus
0.1mm。
Step 3: wide annular groove knife finishes annular groove to diameter of ring groove D2, and wide annular groove knife knife is wide identical as annular groove width L1；
Using self-control bottom belt fall R wide annular groove knife processing annular groove, speed of mainshaft 1000r/min, feed 200mm/r, guarantee
Diameter of ring groove D2.Tool arc R0.25mm, the annular groove bottom one-pass molding of falling R.
Step 4: whether detection annular groove and bottom outlet concentricity and three face luminosity of annular groove meet design objective；
The surface luminous intensity of annular groove side and bottom surface is measured, the concentricity of bottom outlet and annular groove is measured.Luminosity and concentricity meet
Design requirement continues step 5, otherwise debugs part again until meeting.
Step 5: self-control polishing wheel, it is desirable that polishing wheel thickness L2 is identical as annular groove width L1, and guarantees that polishing wheel can be put into
In annular groove, polishing paper 1 is pasted using strong adherence agent in 2, polishing wheel inside 3 on the outside of polishing wheel, and 1 granularity of polishing paper is not less than
800#, using self-control polishing wheel polishing annular groove side and bottom surface；
It makes polishing wheel by oneself and polishes three face of annular groove, according to numerical-control processing method, using polishing wheel as Cutting tool installation manner on lathe,
Layering polishing annular groove.
Step 6: using annular groove after 20 times of endoscopic observation processing, if annular groove inner surface adding there are parallel bottom outlet axis
Work vertical line road repeats step 5 until lines disappears；
Step 7: part is cleaned after polishing
Clean part, removal surface of polished residual.
The present invention is sealed the processing and forming of annular groove, is added using sipes knife one-pass molding using the circular groove cutter of restructuring
Two sides of work annular groove and bottom surface, while time processing forms bottom and falls R.In order to improve ring groove surface luminosity, meet design pair
Surface processes the requirement of lines, and the present invention uses numerical-control processing method, using homemade polishing tool.The present invention solves numerical control
The problem of machining center processes closure gasket groove, meets the demand of production development.
In addition, the structure that the present invention carries out cutter, polishing wheel is improved and part process parameter is according to practical need
Adjustment made by wanting is content described in the claims in the present invention such as without departing from present inventive concept, then still falls within this patent
Protection scope.
Claims (5)
1. a kind of numerical-control processing method of non-rotating part closure gasket groove, which comprises the steps of:
Step 1: right boring functional hole bottom outlet makes functional hole bottom diameter (D1) to design size；
Step 2: centering bottom outlet, narrow annular groove knife semifinishing annular groove, narrow annular groove knife knife is wide to be less than annular groove width (L1) 1mm-2mm；
Step 3: wide annular groove knife finishes annular groove to diameter of ring groove (D2), and wide annular groove knife knife is wide identical as annular groove width (L1)；
Step 4: whether detection annular groove and bottom outlet concentricity and three face luminosity of annular groove meet design objective；
Step 5: self-control polishing wheel, it is desirable that self-control polishing wheel thickness (L2) is identical as annular groove width (L1), and guarantees polishing wheel energy
It is put into annular groove, polishing paper (1) is pasted using strong adherence agent in (2), polishing wheel inside (3) on the outside of polishing wheel, polishing paper (1) grain
Degree is not less than 800#, using self-control polishing wheel polishing annular groove side and bottom surface；
Step 6: using annular groove after 20 times of endoscopic observation processing, if there are the processing of parallel bottom outlet axis to erect for annular groove inner surface
Lines repeats step 5 until lines disappears；
Step 7: part is cleaned after polishing.
2. a kind of numerical-control processing method of non-rotating part closure gasket groove according to claim 1, which is characterized in that described
Step 2: when semifinishing annular groove, using narrow annular groove knife by cutting processing, each made allowance 0.1mm in three faces.
3. a kind of numerical-control processing method of non-rotating part closure gasket groove according to claim 1, which is characterized in that described
Step 3: when finishing annular groove, wide annular groove tool arc R0.25mm, and require rounding fairing.
4. a kind of numerical-control processing method of non-rotating part closure gasket groove according to claim 3, which is characterized in that described
Step 3: when finishing annular groove, according to annular groove size and tool dimension size, the speed of mainshaft, the feeding parameter of process being done
Corresponding adjustment.
5. a kind of numerical-control processing method of non-rotating part closure gasket groove according to claim 1, which is characterized in that described
Step 5: needing to stand one day after polishing wheel bonding polishing paper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831054.0A CN109014778B (en) | 2018-07-25 | 2018-07-25 | Numerical control machining method for sealing ring groove of non-rotating part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810831054.0A CN109014778B (en) | 2018-07-25 | 2018-07-25 | Numerical control machining method for sealing ring groove of non-rotating part |
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| CN109014778A true CN109014778A (en) | 2018-12-18 |
| CN109014778B CN109014778B (en) | 2020-06-09 |
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| CN201810831054.0A Active CN109014778B (en) | 2018-07-25 | 2018-07-25 | Numerical control machining method for sealing ring groove of non-rotating part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406293A (en) * | 2022-02-18 | 2022-04-29 | 重庆江增船舶重工有限公司 | Processing method and inspection device for multistage ring groove |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967646A (en) * | 2009-07-27 | 2011-02-09 | 中国北车集团大同电力机车有限责任公司 | Method for improving wear resistance of ring slots of combined piston steel top of diesel engine |
| CN102468721A (en) * | 2010-11-18 | 2012-05-23 | 上海重型机器厂有限公司 | Method for processing center blind hole of million-kilowatt generator rotor |
| CN103166382A (en) * | 2011-12-14 | 2013-06-19 | 上海重型机器厂有限公司 | Machining method of circular transition section on bottom of central blind hole of generator rotor |
| CN103659159A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Hydraulic shell high-precision long and deep valve installation hole machining method |
| CN106507727B (en) * | 2010-08-27 | 2014-04-23 | 中国航空工业第六一八研究所 | A kind of laser gyro coquille annular groove grinding and polishing device and its abrasive polishing method |
| CN105945509A (en) * | 2016-05-26 | 2016-09-21 | 长治清华机械厂 | Half-blind hole and blind hole hydraulic cylinder inner wall ultrasonic finishing method |
-
2018
- 2018-07-25 CN CN201810831054.0A patent/CN109014778B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967646A (en) * | 2009-07-27 | 2011-02-09 | 中国北车集团大同电力机车有限责任公司 | Method for improving wear resistance of ring slots of combined piston steel top of diesel engine |
| CN106507727B (en) * | 2010-08-27 | 2014-04-23 | 中国航空工业第六一八研究所 | A kind of laser gyro coquille annular groove grinding and polishing device and its abrasive polishing method |
| CN102468721A (en) * | 2010-11-18 | 2012-05-23 | 上海重型机器厂有限公司 | Method for processing center blind hole of million-kilowatt generator rotor |
| CN103166382A (en) * | 2011-12-14 | 2013-06-19 | 上海重型机器厂有限公司 | Machining method of circular transition section on bottom of central blind hole of generator rotor |
| CN103659159A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Hydraulic shell high-precision long and deep valve installation hole machining method |
| CN105945509A (en) * | 2016-05-26 | 2016-09-21 | 长治清华机械厂 | Half-blind hole and blind hole hydraulic cylinder inner wall ultrasonic finishing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406293A (en) * | 2022-02-18 | 2022-04-29 | 重庆江增船舶重工有限公司 | Processing method and inspection device for multistage ring groove |
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