CN102218659B - Method for sealing conical surface by reaming and grinding cylinder cover valve - Google Patents
Method for sealing conical surface by reaming and grinding cylinder cover valve Download PDFInfo
- Publication number
- CN102218659B CN102218659B CN201110139418.7A CN201110139418A CN102218659B CN 102218659 B CN102218659 B CN 102218659B CN 201110139418 A CN201110139418 A CN 201110139418A CN 102218659 B CN102218659 B CN 102218659B
- Authority
- CN
- China
- Prior art keywords
- conical surface
- machining
- plane
- hole
- center
- 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.)
- Active
Links
Abstract
The invention relates to a method for sealing a conical surface by a reaming and grinding cylinder cover valve, comprising the following steps: (1) installing a blank cylinder cover on a machining center; firstly, machining a positioning plane; machining a dowel hole on the positioning plane by the technical steps of drilling, boring and reaming; setting a positioning reference by using the dowel hole on the positioning plane; machining the inner bore of a valve conduit and a race conical surface by a guiding cutter; machining and shaping the inner bore of the valve conduit and a race hole by a compound tool; quenching the race conical surface by laser, wherein the hardness is 50HRC; clamping the part of the race conical surface on the tool; regulating a dedicated grinding head, wherein the bounce of a guiding part and a clamping part is not more than 0.015mm; moving the center of the cutter bar to the center of the valve conduit; regulating the revolving speed, the feeding speed and the feeding mode of a grinding wheel; machining the race conical surface; after machining, moving to the canters of other conduits; repeating the above working procedures; and finishing machining the part. According to the method, the problem that the race conical surface of which the hardness is more than 50HRC on the cylinder cover is difficult to machine is solved, the machining cost is low, the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of machining process, be specifically related to the method for a kind of ream mill head valve sealing cone.
Background technology
Engine cylinder cap is one of vital part on engine, intake and exhaust on the engine valve be mounted on cylinder cap opens and closes and carries out work, valve is high-speed motion in valve guide hole, when intake and exhaust closed by needs, intake and exhaust valve-face and head valve sealing cone are fitted, and reach sealing effectiveness.Therefore, the sealing cone on cylinder cap is very high relative to the requirement of beating of valve guide hole.Inlet and exhaust valve sealing cone on it and the processing of valve guide hole are the difficult points of cylinder cap processing.
General engine cylinder cap all fills valve retainer, and the material of valve retainer is structural alloy steel or alloy cast iron, and quench before loading cylinder cap, hardness is generally less than 45HRC.Therefore the processing technology of domestic and international this part is compound tool, namely the fine finishining of valve guide hole and valve retainer is shaped by cutter time processing, because the hardness of the conical surface that quenches is uneven, mainly foundry goods bulk material is difficult to evenly, local produces hard spot, cause in process, occur cutter spring sword problem, cause processing to carry out, affect processing progress.
Summary of the invention
Technical problem to be solved by this invention is to provide the method for a kind of ream mill head valve sealing cone, the method is easy to operate, solve hardness in cylinder head and be greater than the difficult processing problems of the 50HRC seat ring conical surface, overcome in process the problem occurring cutter spring sword, improve operating efficiency.
Technical scheme of the present invention: a kind of method of ream mill head valve sealing cone, it comprises the following steps:
(1) blank cylinder cap is contained on machining center, first process its plane of orientation, by the dowel hole in the processing step locating and machining plane of brill, boring, hinge, by the dowel hole on plane of orientation, blank cylinder cap is located, the hole of plane and screwed hole in processing, the hole of two sides, groove, bore oblique oil hole, mill plane of orientation and upper plane, boring valve guide hole on cylinder cap, dress valve guide bushing, establishes positioning datum with the dowel hole of plane of orientation;
(2) first use guide knife processing valve guide bushing endoporus and the seat ring conical surface, adopt compound tool once valve guide bushing endoporus and seat ring hole machined to be shaped;
(3) counter race conical surface laser quenching, hardness reaches 50HRC;
(4) be installed with in frock by seat ring conical surface part, use Position with One Plane and Two Holes with the location of frock, the diamond cutter repairing emery wheel is equipped with in the face, side of frock, regulates grinding head dedicated, makes leader be not more than 0.015mm with the beating of part that be installed;
(5) knife bar center is moved to a valve guide bushing center, regulate rotating speed, feed speed, the feeding mode of emery wheel, the counter race conical surface is processed; When wheel passivatio, by diamond cutter, to being contained on main shaft, emery wheel is repaired, and the relative motion between them is completed by establishment patching plug program;
(6) step (5) processes and moves to other catheter center, repeats above-mentioned operation, and part can machine;
(7) use vernier depth gauge to detect the conical surface degree of depth, use appliance special for detecting to tint and detect the laminating degree of the conical surface.
The present invention compared with prior art has following beneficial effect: the invention solves hardness in cylinder head and be greater than the difficult processing problems of the 50HRC seat ring conical surface, ≤ the 0.03mm that beats of the relative valve guide hole of the seat ring conical surface, roughness≤0.8 μm, thus eliminate valve grinding technique after processing, due to the common apparatus processing that this technique work in-process is so in the heart, therefore cost is low, improves operating efficiency.
Detailed description of the invention
A method for ream mill head valve sealing cone, it comprises the following steps:
(1) blank cylinder cap is contained on machining center, first process its plane of orientation, by the dowel hole in the processing step locating and machining plane of brill, boring, hinge, by the dowel hole on plane of orientation, blank cylinder cap is located, the hole of plane and screwed hole in processing, the hole of two sides, groove, bore oblique oil hole, mill plane of orientation and upper plane, boring valve guide hole on cylinder cap, dress valve guide bushing, establishes positioning datum with the dowel hole of plane of orientation;
(2) first use guide knife processing valve guide bushing endoporus and the seat ring conical surface, adopt compound tool once valve guide bushing endoporus and seat ring hole machined to be shaped;
(3) counter race conical surface laser quenching, hardness reaches 50HRC;
(4) be installed with in frock by seat ring conical surface part, use Position with One Plane and Two Holes with the location of frock, the diamond cutter repairing emery wheel is equipped with in the face, side of frock, regulates grinding head dedicated, makes leader be not more than 0.015mm with the beating of part that be installed;
(5) knife bar center is moved to a valve guide bushing center, regulate rotating speed, feed speed, the feeding mode of emery wheel, the counter race conical surface is processed; When wheel passivatio, by diamond cutter, to being contained on main shaft, emery wheel is repaired, and the relative motion between them is completed by establishment patching plug program;
(6) step (5) processes and moves to other catheter center, repeats above-mentioned operation, and part can machine;
(7) use vernier depth gauge to detect the conical surface degree of depth, use appliance special for detecting to tint and detect the laminating degree of the conical surface.
Claims (1)
1. a method for ream mill head valve sealing cone, is characterized in that it comprises the following steps:
(1) blank cylinder cap is contained on machining center, first process its plane of orientation, by the dowel hole in the processing step locating and machining plane of brill, boring, hinge, by the dowel hole on plane of orientation, blank cylinder cap is located, the hole of plane and screwed hole in processing, the hole of two sides, groove, bore oblique oil hole, mill plane of orientation and upper plane, boring valve guide hole on cylinder cap, dress valve guide bushing, establishes positioning datum with the dowel hole of plane of orientation;
(2) first use guide knife processing valve guide bushing endoporus and the seat ring conical surface, adopt compound tool once valve guide bushing endoporus and seat ring hole machined to be shaped;
(3) counter race conical surface laser quenching, hardness reaches 50HRC;
(4) be installed in frock by seat ring conical surface part, use Position with One Plane and Two Holes with the location of frock, the diamond cutter repairing emery wheel is equipped with in the side of frock, regulates grinding head dedicated, makes leader be not more than 0.015mm with the beating of part that be installed;
(5) knife bar center is moved to a valve guide bushing center, regulate rotating speed, feed speed, the feeding mode of emery wheel, the counter race conical surface is processed; When wheel passivatio, repaired the emery wheel be contained on main shaft by diamond cutter, the relative motion between them is completed by programming patching plug program;
(6) step (5) processes and moves to other catheter center, and repeat the operation of step (5), part can machine;
(7) use vernier depth gauge to detect the conical surface degree of depth, use appliance special for detecting to tint and detect the laminating degree of the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139418.7A CN102218659B (en) | 2011-05-25 | 2011-05-25 | Method for sealing conical surface by reaming and grinding cylinder cover valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139418.7A CN102218659B (en) | 2011-05-25 | 2011-05-25 | Method for sealing conical surface by reaming and grinding cylinder cover valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102218659A CN102218659A (en) | 2011-10-19 |
| CN102218659B true CN102218659B (en) | 2015-04-29 |
Family
ID=44775497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110139418.7A Active CN102218659B (en) | 2011-05-25 | 2011-05-25 | Method for sealing conical surface by reaming and grinding cylinder cover valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102218659B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489979B (en) * | 2011-11-11 | 2014-06-25 | 重庆齿轮箱有限责任公司 | Large-diameter and high-precision taper hole processing method |
| CN104801782A (en) * | 2015-05-11 | 2015-07-29 | 江苏力源金河铸造有限公司 | Machining process for conical faces of screw plug hole openings in pump end cover |
| CN105666073A (en) * | 2016-03-21 | 2016-06-15 | 江苏森威集团飞达股份有限公司 | Machining process for electric-driving axle of new energy bus |
| CN108871188A (en) * | 2018-06-05 | 2018-11-23 | 安徽沃德气门制造有限公司 | A kind of valve-face continuous detection apparatus and detection method |
| CN110293379B (en) * | 2019-07-24 | 2021-03-12 | 济南沃德汽车零部件有限公司 | Treatment method for martensite steel inlet valve disc conical surface |
| CN112355591A (en) * | 2020-10-29 | 2021-02-12 | 哈尔滨中天数控工具有限责任公司 | Boring cutter for machining valve seat ring and guide pipe hole and machining method of boring cutter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3454030B2 (en) * | 1996-08-27 | 2003-10-06 | 三菱自動車エンジニアリング株式会社 | Processing method of cylinder head |
| US7097400B2 (en) * | 2001-07-25 | 2006-08-29 | Mapal Fabrik Fur Prazision-Swerkzeuge Dr. Kress Kg | Tool and method for the finishing of valve seats and guides |
| JP2008105105A (en) * | 2006-10-23 | 2008-05-08 | Mitsubishi Materials Corp | Manufacturing method for cylinder head |
| CN101967551A (en) * | 2010-09-18 | 2011-02-09 | 中国兵器工业集团第七○研究所 | Laser strengthening device and strengthening method for valve seat ring of cylinder head |
-
2011
- 2011-05-25 CN CN201110139418.7A patent/CN102218659B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102218659A (en) | 2011-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102218659B (en) | Method for sealing conical surface by reaming and grinding cylinder cover valve | |
| CN106624643B (en) | A kind of straight-bar machines needle selection presser feet production technology | |
| EP1142669B1 (en) | Method for hard turning a work piece | |
| CN100546761C (en) | A kind of manufacture method of motor turning pump blade | |
| CN108693061A (en) | A kind of hard brittle material scratch experiment method feeding track based on trochoid | |
| CN107042329A (en) | For the milling method of chill product | |
| CN102935524B (en) | Deep hole drilling processing method of high temperature alloy material casing | |
| CN104439412B (en) | A kind of drill jig processing little inclined hole | |
| CN106736332B (en) | A kind of numerical-control processing method of the High Pressure Turbine Rotor combination with brill tapered hole | |
| CN108067841B (en) | A kind of preparation method of the high intensity support of bearing | |
| CN105665805A (en) | Indexable crown ball-end milling cutter special for quenched steel die | |
| CN105605025A (en) | Middle cylinder with oblique groove structure and machining method thereof | |
| CN102773776A (en) | Bar centerless grinding technology and special knife board adjusting device thereof | |
| CN102145445B (en) | Ultraprecise drum-shaped roller and processing method thereof | |
| CN105729116B (en) | Complex machining process is ground in a kind of boring | |
| RU2398668C2 (en) | Method of hydraulic control valve repair | |
| CN108067633A (en) | A kind of surface micro-structure and its array vibration processing method | |
| CN102825283A (en) | Porous part boring method and equipment thereof | |
| CN101134255B (en) | Hard alloy precision working rack type cutter and processing technique | |
| CN101332556A (en) | Production method of diamond compound tool for processing shoulder hole | |
| CN105196159B (en) | A kind of numerical control main axle neck grinding machine steep-taper honing method | |
| CN105195975A (en) | Method for machining inner surface of cylinder barrel of AGC (automatic gain control) servo cylinder | |
| CN110434571B (en) | Method for machining inner hole of cylinder body | |
| CN109290744B (en) | Rotating shaft and rotating shaft machining method | |
| CN104084614A (en) | Die deep-hole machining method utilizing double-edge boring tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |