CN104526585A - Grinding wheel for grinding air valve and method for grinding air valve - Google Patents
Grinding wheel for grinding air valve and method for grinding air valve Download PDFInfo
- Publication number
- CN104526585A CN104526585A CN201510006338.2A CN201510006338A CN104526585A CN 104526585 A CN104526585 A CN 104526585A CN 201510006338 A CN201510006338 A CN 201510006338A CN 104526585 A CN104526585 A CN 104526585A
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- CN
- China
- Prior art keywords
- grinding
- line segment
- valve
- air valve
- emery wheel
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with cooling provisions, e.g. with radial slots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a grinding wheel for grinding an air valve and a method for grinding the air valve. The grinding wheel for grinding the air valve has an outer contour line which is adapted to the outer contour line, in the axial direction, of the air valve, the outer contour line of the grinding wheel is composed of a first line segment corresponding to the contour of an outer circle of an air valve disc, a second line segment corresponding to the contour of the outer conical surface of the air valve disc, a third line segment corresponding to the contour of the inner conical surface of the air valve disc, an arc-shaped line segment corresponding to the arc-shaped contour of the neck of the air valve and a fourth line segment corresponding to the contour of the neck of the air valve, the radius of the arc-shaped line segment of the outer contour line of the grinding wheel is smaller than that of the arc-shaped contour of the neck of the air valve, and the length of the second line segment of the outer contour line of the grinding wheel is larger than that of the contour of the outer conical surface of the air valve disc. When the grinding wheel is used for grinding the air valve, grinding of the air valve can be achieved through one-time clamping and one-time grinding, and thus both air valve machining efficiency and air valve machining quality are improved.
Description
Technical field
The invention belongs to film forming system and method, be specifically related to a kind of method of emery wheel for grinding valve and grinding valve.
Background technology
Existing valve is when grinding, and valve retainer, neck contoured surface and the processing of dish end face are divided into two procedures to carry out, and wherein valve retainer end face adopts turnery processing, is difficult to meet high-end engine to the thick requirement on machining accuracy of valve retainer.And the processing of valve retainer, neck contoured surface (comprising valve retainer cylindrical, interior male cone (strobilus masculinus), arc surface) is based on plain wheel form grinding, working (machining) efficiency is low, emery wheel loss fast, processing dimension uniformity is poor.
Summary of the invention
The object of the invention is for prior art Problems existing, a kind of of proposition can complete the emery wheel for grinding valve of grinding and the method for grinding valve by clamped one time grinding, thus improves valve working (machining) efficiency and quality.
The technical scheme realizing the object of the invention is as follows:
Emery wheel for grinding valve provided by the invention, have and the valve outer contour that adapts of outline vertically, the outer contour of described emery wheel is by first line segment corresponding with valve retainer excircle configuration, second line segment corresponding with valve retainer male cone (strobilus masculinus) profile, three line segment corresponding with valve retainer inner conical surface profile, the circular arc line segment corresponding with air valve cervix arc profile and four line segment corresponding with air valve cervix profile connect to form, in described emery wheel outer contour, the radius of circular arc line segment is less than the radius of air valve cervix arc profile, in described emery wheel outer contour, the length of the second line segment is greater than the length of valve retainer male cone (strobilus masculinus) profile.
The end face that described emery wheel is positioned at air valve cervix side is provided with a little fillet surface and a bit of vertical plane.
The method of the described wheel grinding valve of employing provided by the invention, comprises the following steps:
Step one, the first line segment of emery wheel, a part for circular arc line segment and the 4th line segment are matched with the part of valve retainer excircle configuration, air valve cervix arc profile and air valve cervix profile respectively carry out grinding-shaping;
Step 2, emery wheel progressively movement make another part of the circular arc line segment of emery wheel, the 3rd line segment and the second line segment match with another part of air valve cervix arc profile, valve retainer inner conical surface profile and valve retainer male cone (strobilus masculinus) profile respectively to carry out grinding-shaping;
Step 3, the little fillet surface utilizing abrasive wheel end face and a bit of vertical plane are successively by valve retainer end face grinding-shaping.
Described step one adopts shaping grinding method, and emery wheel at a certain angle work enters grinding position.
Described step 2 adopts NC Interpolation method.
Described step 3 adopts radial plunge method.
Beneficial effect of the present invention:
1, by the dish of clamped one time valve and grinding air outlet valve, neck contoured surface and dish end face, significantly improve working (machining) efficiency and the thick precision of dish, save operation, thick error≤0.01 mm of valve retainer.
2, integrated valve retainer cross grinding and valve retainer, neck contoured surface grinding function on a slice emery wheel, machine tool structure simple economy.
3, use CBN emery wheel to be carried out the complex profile of grinding valve by the method that sectional forming grinding combines with NC Interpolation method, significantly reduce grinding force, its working (machining) efficiency and processing dimension uniformity are obviously better than using plain wheel.
4, can make full use of the idle running that disappears, anti-collision that grinding wheel dynamic balance system has during grinding end face, grinding process is safe and reliable.
5, emery wheel is with little fillet surface region, end Even Grinding valve retainer end face, and emery wheel end wear is slight, evenly, the finishing degree of depth required during crushing is also very little, therefore good grinding quality, and emery wheel durability is high.
6, the low-angle conical surface in emery wheel end is with radial plunge method grinding valve retainer end face, the ever-reduced corresponding low-angle conical surface of diameter will inevitably be formed in valve retainer end in grinding process, these two conical surfaces contact, its essence is a linear contact lay, therefore not quite, cooling fluid also easily enters grinding area for cutting force and heat in metal cutting.
Technical scheme of the present invention is further illustrated below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is grinding wheel structure schematic diagram of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is emery wheel outer contour schematic diagram of the present invention.
The filing schematic diagram that the sectional forming that Fig. 4 is grinding valve retainer, neck contoured surface adopts combines with NC Interpolation.
Fig. 5 is the radial crush grinding method schematic diagram of the little fillet surface of emery wheel that grinding valve retainer end face adopts.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the emery wheel for grinding valve is CBN emery wheel, the CBN abrasive material 2 comprising steel matrix 1 and be coated in steel matrix.
As shown in Figure 3, emery wheel has and the valve outer contour that adapts of outline vertically, the outer contour of emery wheel is by the first line segment e2f2 corresponding with valve retainer excircle configuration line segment e1f1, the second line segment d2e2 corresponding with valve retainer male cone (strobilus masculinus) profile line segment d1e1, the three line segment c2d2 corresponding with valve retainer inner conical surface profile line segment c1d1, the circular arc line segment b2c2 corresponding with air valve cervix arc profile line segment b1c1 and the four line segment a2b2 corresponding with air valve cervix profile line segment a1b1 connects to form, in described emery wheel outer contour, the radius R 2 of circular arc line segment b2c2 is less than the radius R 1 of air valve cervix arc profile line segment b1c1, in described emery wheel outer contour, the length of the second line segment d2e2 is greater than the length of valve retainer male cone (strobilus masculinus) profile line segment d1e1, the end face that described emery wheel is positioned at air valve cervix side is provided with a little fillet surface of α and a bit of vertical plane H.Visible, the outer contour of emery wheel is except the radius R 2 second line segment d2e2 that is more smaller than the radius R 1 of air valve cervix arc profile line segment b1c1 and grinding valve retainer male cone (strobilus masculinus) of the circular arc line segment b2c2 of grinding air valve cervix circular arc is slightly longer than valve retainer male cone (strobilus masculinus) profile line segment d1e1, and all the other outer contours are identical with valve corresponding position profile line segment.
The method of described wheel grinding valve is adopted to be the method that sectional forming grinding combines with NC Interpolation, as shown in Figure 4.During grinding work piece emery wheel first at a certain angle work enter the wheel grinding position one in Fig. 4 shown in two-dot chain line, with shaping grinding method by valve retainer excircle configuration line segment e1f1 region, the left-hand component region of air valve cervix arc profile line segment b1c1 and air valve cervix profile line segment a1b1 region grinding-shaping, now air valve cervix profile line segment a1b1, the left-hand component of air valve cervix arc profile line segment b1c1 and valve retainer excircle configuration line segment e1f1 respectively with the 4th line segment a2b2 of emery wheel, left-hand component and the first line segment e2f2 of circular arc line segment b2c2 match, then wheel grinding position two is ground to NC Interpolation method from wheel grinding position one, gradually by the right-hand component region of air valve cervix arc profile line segment b1c1, valve retainer inner conical surface profile line segment c1d1 region and valve retainer male cone (strobilus masculinus) profile line segment d1e1 region grinding-shaping, now the right-hand component of air valve cervix arc profile line segment b1c1, valve retainer inner conical surface profile line segment c1d1 and valve retainer male cone (strobilus masculinus) profile line segment d1e1 match with the right-hand component of abrasive wheel grinding wheel arc line segment b2c2, the 3rd line segment c2d2 and the second line segment d2e2 respectively.The track of NC Interpolation method is with the o point of air valve cervix arc profile line segment b1c1 for the center of circle, with
r1-R2 is the arc section rs of radius.When emery wheel arrives final grinding position two, valve c1 point is ground region contour (except valve retainer cylindrical) with the right side and overlaps completely with right profile (except the contoured surface of grinding valve retainer cylindrical) with emery wheel c2 point.This grinding method is while guarantee valve machined surface profile grinding accuracy, because c1 point on valve outline line in NC Interpolation grinding process disengages with left half with c2 point on emery wheel outline line gradually with a left side grinding face, thus significantly reduce grinding force, improve the cooling condition of emery wheel, emery wheel durability significantly improves.
Grinding valve retainer end face method as shown in Figure 5.Utilize the little fillet surface of the α of emery wheel left end face, with radial plunge method grinding valve retainer end face, recycle a bit of vertical plane H for tarry matter valve retainer end face (see Fig. 3).
Claims (6)
1. the emery wheel for grinding valve, have and the valve outer contour that adapts of outline vertically, the outer contour of described emery wheel is by first line segment corresponding with valve retainer excircle configuration, second line segment corresponding with valve retainer male cone (strobilus masculinus) profile, three line segment corresponding with valve retainer inner conical surface profile, the circular arc line segment corresponding with air valve cervix arc profile and four line segment corresponding with air valve cervix profile connect to form, it is characterized in that the radius of circular arc line segment in described emery wheel outer contour is less than the radius of air valve cervix arc profile, in described emery wheel outer contour, the length of the second line segment is greater than the length of valve retainer male cone (strobilus masculinus) profile.
2. the emery wheel for grinding valve according to claim 1, is characterized in that the end face that described emery wheel is positioned at air valve cervix side is provided with a little fillet surface and a bit of vertical plane.
3. adopt a method for wheel grinding valve described in claim 2, it is characterized in that comprising the following steps:
Step one, the first line segment of emery wheel, a part for circular arc line segment and the 4th line segment are matched with the part of valve retainer excircle configuration, air valve cervix arc profile and air valve cervix profile respectively carry out grinding-shaping;
Step 2, emery wheel progressively movement make another part of the circular arc line segment of emery wheel, the 3rd line segment and the second line segment match with another part of air valve cervix arc profile, valve retainer inner conical surface profile and valve retainer male cone (strobilus masculinus) profile respectively to carry out grinding-shaping;
Step 3, the little fillet surface utilizing abrasive wheel end face and a bit of vertical plane are successively by valve retainer end face grinding-shaping.
4. the method for wheel grinding valve according to claim 3, it is characterized in that described step one adopts shaping grinding method, emery wheel at a certain angle work enters grinding position.
5. the method for the wheel grinding valve according to claim 3 or 4, is characterized in that described step 2 adopts NC Interpolation method.
6. the method for wheel grinding valve according to claim 5, is characterized in that described step 3 adopts radial plunge method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006338.2A CN104526585B (en) | 2015-01-07 | 2015-01-07 | A kind of emery wheel for grinding valve and the method for grinding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006338.2A CN104526585B (en) | 2015-01-07 | 2015-01-07 | A kind of emery wheel for grinding valve and the method for grinding valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104526585A true CN104526585A (en) | 2015-04-22 |
| CN104526585B CN104526585B (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510006338.2A Active CN104526585B (en) | 2015-01-07 | 2015-01-07 | A kind of emery wheel for grinding valve and the method for grinding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104526585B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848762A (en) * | 2019-01-12 | 2019-06-07 | 深圳西斯特科技有限公司 | A kind of valve retainer end face processing technology |
| CN115194572A (en) * | 2022-07-05 | 2022-10-18 | 山东理工大学 | Method for symmetrically grinding crankshaft journal |
| CN115302382A (en) * | 2022-07-26 | 2022-11-08 | 常熟市佳德汽车零部件有限公司 | Automatic surface polishing device for processing motorcycle engine protecting cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333687A (en) * | 1998-05-25 | 1999-12-07 | Fuji Oozx Inc | Method for grinding engine valve head part |
| JP2002079469A (en) * | 2000-09-06 | 2002-03-19 | Fuji Oozx Inc | Grinding wheel |
| CN101249627A (en) * | 2008-04-08 | 2008-08-27 | 山东瑞丰汽车零部件有限公司 | Engines air valve cervix helical grinding technique |
| JP2012101329A (en) * | 2010-11-11 | 2012-05-31 | Honda Motor Co Ltd | Workpiece grinding device, workpiece grinding method, engine valve grinding device, and engine valve grinding method |
| CN203495778U (en) * | 2013-09-23 | 2014-03-26 | 镇江维纳特气门有限公司 | Grinding wheel of grinding valve plate portion |
| CN203843705U (en) * | 2014-05-18 | 2014-09-24 | 郑州众邦超硬工具有限公司 | Multipurpose formed CBN grinding wheel for valve |
| CN204565933U (en) * | 2015-01-07 | 2015-08-19 | 宇环数控机床股份有限公司 | A kind of emery wheel for grinding valve |
-
2015
- 2015-01-07 CN CN201510006338.2A patent/CN104526585B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333687A (en) * | 1998-05-25 | 1999-12-07 | Fuji Oozx Inc | Method for grinding engine valve head part |
| JP2002079469A (en) * | 2000-09-06 | 2002-03-19 | Fuji Oozx Inc | Grinding wheel |
| CN101249627A (en) * | 2008-04-08 | 2008-08-27 | 山东瑞丰汽车零部件有限公司 | Engines air valve cervix helical grinding technique |
| JP2012101329A (en) * | 2010-11-11 | 2012-05-31 | Honda Motor Co Ltd | Workpiece grinding device, workpiece grinding method, engine valve grinding device, and engine valve grinding method |
| CN203495778U (en) * | 2013-09-23 | 2014-03-26 | 镇江维纳特气门有限公司 | Grinding wheel of grinding valve plate portion |
| CN203843705U (en) * | 2014-05-18 | 2014-09-24 | 郑州众邦超硬工具有限公司 | Multipurpose formed CBN grinding wheel for valve |
| CN204565933U (en) * | 2015-01-07 | 2015-08-19 | 宇环数控机床股份有限公司 | A kind of emery wheel for grinding valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109848762A (en) * | 2019-01-12 | 2019-06-07 | 深圳西斯特科技有限公司 | A kind of valve retainer end face processing technology |
| CN115194572A (en) * | 2022-07-05 | 2022-10-18 | 山东理工大学 | Method for symmetrically grinding crankshaft journal |
| CN115194572B (en) * | 2022-07-05 | 2024-01-12 | 山东理工大学 | Method for symmetrically grinding crankshaft journal |
| CN115302382A (en) * | 2022-07-26 | 2022-11-08 | 常熟市佳德汽车零部件有限公司 | Automatic surface polishing device for processing motorcycle engine protecting cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104526585B (en) | 2016-08-17 |
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