CN101380709A - Processing method of crossover valve core control pod and control edge - Google Patents
Processing method of crossover valve core control pod and control edge Download PDFInfo
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- CN101380709A CN101380709A CNA2008100402146A CN200810040214A CN101380709A CN 101380709 A CN101380709 A CN 101380709A CN A2008100402146 A CNA2008100402146 A CN A2008100402146A CN 200810040214 A CN200810040214 A CN 200810040214A CN 101380709 A CN101380709 A CN 101380709A
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Abstract
The invention discloses a processing method for a control slot and a control side of a conversion valve core which is characterized by including the following steps: a supporting ear is milled on a valve core piece; six slots are manufactured by adopting a hobbing method and taking the phase position of the supporting ear as a benchmark; an outer circle is ground by taking a central hole as a benchmark; then the control side is ground by taking the outer circle and the scale division of the six slots as benchmarks. The outer circle and the control side of the conversion valve core processed by adopting the method are ground by steps, thus improving the production time by about 40 percent, improving the working production rate by more than 50 percent, reducing the investment of each group by more than 10 millions and improving the processing precision and the stability; besides, Cmk is equal to or more than 3.0; the technique stability is good.
Description
Technical field
Patent of the present invention relates to the Manufacturing Technology for Automotive Parts field, the concrete processing method that turns to spool in the automobile steering system that relates to.
Background technology
Adopt the required energy of motor turning of power steering system, under normal circumstances, having only fraction is the physical efficiency that the driver provides, and major part is the hydraulic pressure energy that oil pump provided that engine (or motor) drives.Be converted into the pressure energy in order to part mechanical energy with engine (or motor) output, and under driver's control, a certain driving member in steering transmission linkage or the steering gear is applied the hydraulic action of different directions,, be called power steering stgear to help a series of parts of driver's application of force deficiency.
In the parts of steering gear, switching valve is the key of its function quality of decision, steering valve core in the switching valve adds need have higher precision man-hour, and be difficult to the precision that reaches required in the existing process technology, perhaps need repeatedly complicated processing technology just can reach required precision, yield rate is low, and technology cost height.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the problem that exists in the existing switching valve process technology, and a kind of processing method of crossover valve core control pod is provided.
In order to address the above problem technical scheme of the present invention is such:
The processing method on a kind of crossover valve core control pod and control limit is characterized in that, may further comprise the steps:
On core member, mill out the holder ear,
Phase place with the holder ear is a benchmark, adopts the method for gear hobbing to make six grooves,
With the centre bore is benchmark, cylindrical grinding,
With cylindrical and six groove calibration is benchmark, the control limit of regrinding.
The grooved of control flume is for being fit to 1/50 arc of gear hobbing processing, and the indexing accuracy of groove is ± 0.01, dimensional accuracy＜0.02.
In processing six groove processes,, guarantee the calibration of processing with the on-line measurement of pneumatic special measurement instrument.
Adopt the opening process liquid properties of flow of meteorologic survey technical modelling valve, measure position, size and the hydraulic characteristic on control flume, control limit, not only size is correct to guarantee processing work, and function also 100% meets the requirements.
Beneficial effect, the steering valve core that adopts above method to process, cylindrical and the substep grinding of control limit, it is about 40% to improve productive temp, and it is about more than 50% to raise labour productivity, and reduces more than 1,000 ten thousand yuan every group of investments, improved machining accuracy and stability, and Cmk 〉=3.0, technology stability is good.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a steering valve core structural representation of the present invention;
Fig. 2 is A-A sectional structure schematic diagram of Fig. 1;
Fig. 3 is B-B sectional structure schematic diagram of Fig. 2;
Fig. 4 is the E place enlarged drawing of Fig. 3;
Fig. 5 is steering valve core of the present invention structural representation when the machining control limit;
Fig. 6 is B-B sectional structure schematic diagram of Fig. 5;
Fig. 7 is the F place enlarged drawing of Fig. 6.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Referring to Fig. 1-Fig. 4, the steering valve core of this patent method desire processing as shown in the figure, described spool 1 inner shaft is to an axially extending bore is arranged, spool 1 outside three control flumes that have through hole 32 that link to each other with axially extending bore that evenly distribute, and spool 1 outside each have and also have one in the middle of the control flume of through hole not with the control flume 2 of through hole, all control flumes 2 are evenly distributed on spool 1 outside, and three grooves that have through hole make the liquid flow path to flowing, and three do not have the groove of through hole can control the liquid flow path to flowing.
Add man-hour, the holder ear 4 on 1 spool, 1 left side during at first processing is published picture, holder ear 4 adopts milling machines processing, mills out the holder ear shown in the figure, and then is benchmark with the phase place of holder ear 4, adopts the method for gear hobbing to make Fig. 1-six control flumes shown in Figure 4; For the ease of gear hobbing processing, the grooved of control flume is for being fit to 1/50 arc of gear hobbing processing, and the indexing accuracy of groove is ± 0.01, dimensional accuracy＜0.02; And then be the center cylindrical grinding with the through hole.After the cylindrical completion of processing, grind the control limit, because in the last operation, the working grading precision height of control flume 2 is so in this one, only need mill control limit, the control limit is benchmark referring to Fig. 5-Fig. 7 with cylindrical and six groove calibration, grinds satisfactory control limit 5.
In processing six groove processes,, guarantee the calibration of processing with the on-line measurement of pneumatic special measurement instrument.
Adopt the opening process liquid properties of flow of meteorologic survey technical modelling valve, measure position, size and the hydraulic characteristic on control flume, control limit, not only size is correct to guarantee processing work, and function also 100% meets the requirements.
Compared with prior art, adopt the steering valve core of above method processing, cylindrical and the substep grinding of control limit, it is about 40% to improve productive temp, and it is about more than 50% to raise labour productivity, and reduces more than 1,000 ten thousand yuan every group of investments, improved machining accuracy and stability, and Cmk 〉=3.0, technology stability is good.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1, the processing method on a kind of crossover valve core control pod and control limit is characterized in that, may further comprise the steps:
On core member, mill out the holder ear,
Phase place with the holder ear is a benchmark, adopts the method for gear hobbing to make six grooves,
With the centre bore is benchmark, cylindrical grinding,
With cylindrical and six groove calibration is benchmark, the control limit of regrinding.
2, the processing method on a kind of crossover valve core control pod according to claim 1 and control limit is characterized in that, the grooved of control flume is for being fit to 1/50 arc of gear hobbing processing, and the indexing accuracy of groove is ± 0.01, dimensional accuracy＜0.02.
3, the processing method on a kind of crossover valve core control pod according to claim 1 and control limit is characterized in that, in processing six groove processes, with the on-line measurement of pneumatic special measurement instrument, guarantees the calibration of processing.
4, the processing method on a kind of crossover valve core control pod according to claim 1 and control limit is characterized in that, adopts the opening process liquid properties of flow of meteorologic survey technical modelling valve, measures position, size and the hydraulic characteristic on control flume, control limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810040214A CN100574971C (en) | 2008-07-04 | 2008-07-04 | The processing method on a kind of crossover valve core control pod and control limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810040214A CN100574971C (en) | 2008-07-04 | 2008-07-04 | The processing method on a kind of crossover valve core control pod and control limit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101380709A true CN101380709A (en) | 2009-03-11 |
| CN100574971C CN100574971C (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810040214A Active CN100574971C (en) | 2008-07-04 | 2008-07-04 | The processing method on a kind of crossover valve core control pod and control limit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736562A (en) * | 2017-01-24 | 2017-05-31 | 宁波华平金属制品有限公司 | A kind of brass temperature controlled valve core processing unit (plant) and its processing technology |
| CN110901755A (en) * | 2019-12-26 | 2020-03-24 | 台州永安转向器有限公司 | Steering control valve |
-
2008
- 2008-07-04 CN CN200810040214A patent/CN100574971C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736562A (en) * | 2017-01-24 | 2017-05-31 | 宁波华平金属制品有限公司 | A kind of brass temperature controlled valve core processing unit (plant) and its processing technology |
| CN106736562B (en) * | 2017-01-24 | 2019-02-19 | 宁波华平智控科技股份有限公司 | A kind of processing technology of brass temperature controlled valve core |
| CN110901755A (en) * | 2019-12-26 | 2020-03-24 | 台州永安转向器有限公司 | Steering control valve |
| CN110901755B (en) * | 2019-12-26 | 2024-05-28 | 台州永安转向器有限公司 | Steering control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100574971C (en) | 2009-12-30 |
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Address after: 201821 No. 2001 Yongsheng Road, Jiading Industrial Zone, Shanghai, Jiading District Patentee after: BOSCH Huayu Steering System Co., Ltd. Address before: 201821 No. 2001 Yongsheng Road, Jiading Industrial Zone, Shanghai, Jiading District Patentee before: Shanghai ZF Steering Co., Ltd. |