CN101797698B - Method for controlling axial dimension of valve - Google Patents
Method for controlling axial dimension of valve Download PDFInfo
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- CN101797698B CN101797698B CN2009102734738A CN200910273473A CN101797698B CN 101797698 B CN101797698 B CN 101797698B CN 2009102734738 A CN2009102734738 A CN 2009102734738A CN 200910273473 A CN200910273473 A CN 200910273473A CN 101797698 B CN101797698 B CN 101797698B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 16
- 238000003754 machining Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The axial dimension of a valve directly influences the valve clearance and intensity, so that the power and safety of an automotive engine are influenced. Because the manufacture of the valve needs rough machining and finish machining, the reference transformation and accumulation of machining errors are necessarily caused. Therefore, it is difficult to completely guarantee all axial dimension tolerance of the valve. In order to solve the problems, the invention provides a method for controlling the axial dimension of the valve. A conical surface of a valve plate is machined and shaped under the condition that the rough and finish machining reference is invariable. The thickness of the valve plate is directly controlled. After the end face of a valve rod is subjected to finish machining, the distance from the conical surface of the valve plate to the end face of the valve rod and the distance from the conical surface of the valve to a clamping groove are obtained. The method for controlling the axial dimension of the valve can completely guarantee the design requirement on each axial dimension of the valve, the product quality is stable and reliable, and the one-time pass rate of the product can be greatly improved.
Description
Technical field
The present invention relates to a kind of control method of axial dimension of valve.
Background technology
Valve is a kind of important accessory of engine, and the difference of its performance is very big to the various parameter influences of engine.Axial dimension of valve comprises: the distance at the distance of dish conical surface gauge to the distance of coiling end face, dish conical surface gauge to rod end surface, dish portion thickness and dish conical surface gauge to rod slot center.Axial dimension of valve directly has influence on valve clearance and intensity, thereby influences the power and the security of automobile engine.The machining principle is that machining benchmark overlaps with design basis as far as possible; But the rod end surface of valve retainer conical surface gauge (the dish conical surface of valve) and valve is after fine finishining; Can not remake and be positioning reference; Otherwise can form damage to polished surface, so the dish conical surface of valve and rod end surface must be carried out roughing earlier, after carry out fine finishining.Owing to the existence of twice processing is arranged, must cause the conversion of benchmark and the accumulative total of mismachining tolerance, thereby make all axial dimension tolerances of valve guarantee to have certain difficulty fully.
Summary of the invention
For solving the problems referred to above that exist in the prior art, realize the high accuracy of axial dimension of valve, the purpose of this invention is to provide a kind of axial dimension of valve control method.
The control method that the present invention solves this axial dimension of valve that its technical problem adopts may further comprise the steps:
Step 1: with location, valve retainer back side processing valve retainer end face, positioning reference and measuring basis overlap, and directly confirm the thickness B of valve retainer portion;
Step 2: with the valve retainer end face location after the step 1 processing, processing valve stem end face is confirmed valve length overall L;
Step 3: with valve stem end face location, processing valve collet groove, positioning reference is consistent with measuring basis, confirms the distance L 3 of preceding valve collet groove center to the valve stem end face of fine finishining;
Step 4:,, directly confirm the distance L 11 of preceding valve retainer conical surface gauge to the valve stem end face of fine finishining to the roughing of the valve retainer conical surface with valve stem end face location;
Step 5: to the fine finishining of the valve retainer conical surface, valve retainer conical surface gauge keeps measuring basis consistent with positioning reference in bevel to the distance L 12 of valve stem end face after directly definite fine finishining, confirms that indirectly dish conical surface gauge arrives the distance L 0 of dish end face;
Step 6: with the rod end surface location, the correct grinding rod end surface.
Adopt the advantage of the control method of axial dimension of valve provided by the invention:
1. process route is short, does not have the operation that repeats to process, and can shorten life cycle of the product, reduces cost of labor;
2. can guarantee the designing requirement of air valve shaft to each size fully, stable and reliable product quality can significantly improve the disposable qualification rate of product.
Description of drawings
Fig. 1 is process dimension chain figure of the present invention.
B among the figure: the thickness of valve retainer portion; L: the valve length overall, L0: dish conical surface gauge arrives the distance of dish end face, L11: the distance of valve retainer conical surface gauge to valve stem end face before the fine finishining; L12: the distance of valve retainer conical surface gauge to valve stem end face after the fine finishining; L2: the distance of valve retainer conical surface gauge to valve collet groove center, L3: the distance of valve collet groove center to valve stem end face before the fine finishining, L31: the distance of valve collet groove center to valve stem end face after the fine finishining.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further detailed.
The control method of this axial dimension of valve may further comprise the steps:
Step 1: with location, valve retainer back side processing valve retainer end face; Positioning reference and measuring basis overlap, and directly confirm the thickness B of valve retainer portion, and the deviation of this thickness is ± 0.20mm; Difference of lower deviation is that thickness deviation is 0.4mm on it, satisfies the common thickness deviation 0.2～0.5mm of valve retainer portion.
Step 2: with the valve retainer end face location after the step 1 processing, processing valve stem end face is confirmed valve length overall L; Because positioning reference is consistent with measuring basis; The total long value of valve can be controlled in a less excursion, the deviation ± 0.03mm of valve length overall, thus for next step obtains coiling conical surface gauge to the distance L of coiling end face 0 dimension chain that tolerance value is less is provided; Because the rod end surface working (finishing) area is little; The morpheme error is easy to control, and to add man-hour be measurement point with the rod end surface center, for next step operation obtains less fiducial error;
Step 4: with valve stem end face location, to the roughing of the valve retainer conical surface, directly confirm the distance L 11 of valve retainer conical surface gauge to valve stem end face, its deviation is ± 0.03mm,
Step 5: to the fine finishining of the valve retainer conical surface; The distance L 12 of valve retainer conical surface gauge to valve stem end face after directly definite fine finishining; Its deviation is ± 0.03mm; In bevel, keep measuring basis consistent with positioning reference, confirm the distance L 0 of dish conical surface gauge to the dish end face simultaneously indirectly, its deviation is ± 0.06mm;
Step 6: with the rod end surface location, the correct grinding rod end surface, the processing capacity L4 of rod end surface is 0.05 ± 0.02mm.
There are three process dimension chains after the valve fine finishining:
1. the distance L 12 of valve retainer conical surface gauge valve retainer conical surface gauge to valve stem end face after the distance L 11 of valve stem end face, the fine finishining and finish grind three size composition dimension chains of processing capacity L4 of rod end surface before the fine finishining; The distance L 12 of dish conical surface gauge to the valve stem end face after the fine finishining is a closed-loop; Obtain indirectly; Its product tolerance is 0.1～0.2mm; The process dimension tolerance 0.06mm (the process dimension tolerance equals the poor of the upper deviation and lower deviation) of the distance L 12 of dish conical surface gauge to the valve stem end face after the fine finishining is less than the minimal tolerance 0.1mm of its product, thereby explains that method provided by the invention can guarantee the tolerance of product;
2. the dimension chain of three size compositions of processing capacity L4 of the distance L 31 of valve collet groove center to valve stem end face and correct grinding rod end surface after the distance L 3 of valve collet groove center to valve stem end face, the fine finishining of valve stem end face before the fine finishining of valve stem end face; The distance L 31 of valve collet groove center to valve stem end face is a closed-loop after the fine finishining; Obtain indirectly; Its product tolerance is 0.2～0.3mm, and the operation tolerance of the distance L 31 of valve collet groove center to the valve stem end face after the fine finishining is less than its product tolerance.
3. 2 three size composition dimension chains of distance L of the distance L 12 of the distance L 31 of valve collet groove center to valve stem end face, the valve retainer conical surface to valve stem end face and valve retainer conical surface gauge to valve collet groove center after the fine finishining; The distance L 2 of valve retainer conical surface gauge to valve collet groove center is a closed-loop; Its product tolerance is 0.2～0.3mm; The operation deviation of the distance L 2 of valve retainer conical surface gauge to valve collet groove center is less than its product tolerance; Thereby explain that method provided by the invention can guarantee the tolerance of product, improve the precision of product.
Claims (1)
1. the control method of an axial dimension of valve is characterized in that may further comprise the steps:
Step 1: with location, valve retainer back side processing valve retainer end face, positioning reference and measuring basis overlap, and directly confirm the thickness B of valve retainer portion;
Step 2: with the valve retainer end face location after the step 1 processing, processing valve stem end face is confirmed valve length overall L;
Step 3: with valve stem end face location, processing valve collet groove, positioning reference is consistent with measuring basis, confirms the distance L 3 of preceding valve collet groove center to the valve stem end face of fine finishining;
Step 4:,, directly confirm the distance L 11 of preceding valve retainer conical surface gauge to the valve stem end face of fine finishining to the roughing of the valve retainer conical surface with valve stem end face location;
Step 5: to the fine finishining of the valve retainer conical surface, valve retainer conical surface gauge keeps measuring basis consistent with positioning reference in bevel to the distance L 12 of valve stem end face after directly definite fine finishining, confirms that indirectly dish conical surface gauge arrives the distance L 0 of dish end face;
Step 6: with the rod end surface location, the correct grinding rod end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102734738A CN101797698B (en) | 2009-12-30 | 2009-12-30 | Method for controlling axial dimension of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102734738A CN101797698B (en) | 2009-12-30 | 2009-12-30 | Method for controlling axial dimension of valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101797698A CN101797698A (en) | 2010-08-11 |
| CN101797698B true CN101797698B (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102734738A Expired - Fee Related CN101797698B (en) | 2009-12-30 | 2009-12-30 | Method for controlling axial dimension of valve |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658454A (en) * | 2012-04-28 | 2012-09-12 | 山东华云机电科技有限公司 | Supersonic machining method of circular-arc face of engine valve |
| CN109202540B (en) * | 2018-10-16 | 2020-02-07 | 中国航发南方工业有限公司 | Method for machining outer conical surface of shaft workpiece |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229016A (en) * | 1999-02-01 | 1999-09-22 | 中南工业大学 | Method for preparation of titanium aluminum base alloy valve |
| CN1133218C (en) * | 1996-07-29 | 2003-12-31 | 日亚化学工业株式会社 | Light emitting device and display device |
| CN1916376A (en) * | 2006-08-30 | 2007-02-21 | 镇江维纳特气门有限公司 | Method for fabricating sealing surface of air valve |
| CN200999635Y (en) * | 2007-01-09 | 2008-01-02 | 哈尔滨东安汽车动力股份有限公司 | Car engine air valve |
| CN101579740A (en) * | 2008-05-13 | 2009-11-18 | 通用汽车环球科技运作公司 | Method for making titanium-based automotive engine valves using powder metallurgy process |
-
2009
- 2009-12-30 CN CN2009102734738A patent/CN101797698B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1133218C (en) * | 1996-07-29 | 2003-12-31 | 日亚化学工业株式会社 | Light emitting device and display device |
| CN1229016A (en) * | 1999-02-01 | 1999-09-22 | 中南工业大学 | Method for preparation of titanium aluminum base alloy valve |
| CN1916376A (en) * | 2006-08-30 | 2007-02-21 | 镇江维纳特气门有限公司 | Method for fabricating sealing surface of air valve |
| CN200999635Y (en) * | 2007-01-09 | 2008-01-02 | 哈尔滨东安汽车动力股份有限公司 | Car engine air valve |
| CN101579740A (en) * | 2008-05-13 | 2009-11-18 | 通用汽车环球科技运作公司 | Method for making titanium-based automotive engine valves using powder metallurgy process |
Non-Patent Citations (2)
| Title |
|---|
| urt Ebert 等.气门加工的质量控制.《世界汽车》.1983,(第2期),全文. * |
| 熊晓红 等.全自动气门毛坯生产线的研究与开发.《锻压技术》.2009,(第5期),全文. * |
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Inventor after: Xia Xuhong Inventor after: Zhang Tao Inventor after: Rong Guichao Inventor before: Xia Xuhong |
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