CN101450407A - Electro-hydraulic servo valve sleeve throttling square-hole processing tool - Google Patents
Electro-hydraulic servo valve sleeve throttling square-hole processing tool Download PDFInfo
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- CN101450407A CN101450407A CNA2008102074235A CN200810207423A CN101450407A CN 101450407 A CN101450407 A CN 101450407A CN A2008102074235 A CNA2008102074235 A CN A2008102074235A CN 200810207423 A CN200810207423 A CN 200810207423A CN 101450407 A CN101450407 A CN 101450407A
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- taper shank
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Abstract
The invention relates to a frock for processing a throttling square hole of a valve housing of a electrohydraulic servo valve, which comprises a baseplate (1), wherein the baseplate (1) is provided with a tailstock (4) and a headstock (9); a tailstock mandrel (5) and a taper shank mandrel (7) are in sliding match with inner holes at two ends of the valve housing (6) respectively; the inside of an inner hole of the headstock (9) is provided with a turntable (8) which is connected with a crank handle (10); a tail taper shank of the taper shank mandrel (7) is matched with an inner taper hole of the turntable (8); the tailstock mandrel (5) is in sliding match with an inner hole of the tailstock (4); and the end part of the tailstock mandrel (5) is supported by a push-pull rod (2). The frock has the advantages of simple structure, low manufacture cost, good handling quality and long service life, can adapt to electric spark processing of valve housings with various models through adjustment of distance between the headstock and the tailstock and replacement of the taper shank mandrel and the tailstock mandrel, and not only can accurately control precision of coplane degree of the throttling edge of the square hole but also obviously improve working efficiency.
Description
Technical field
The invention belongs to electrohydraulic servo valve component processing field, particularly relate to a kind of electro-hydraulic servo valve sleeve throttling square-hole processing.
Background technology
There is following defective in the processing that is used for the used electro-hydraulic servo valve sleeve throttling square-hole of electrohydraulic control system (limit) at present:
Existing processing method: before valve pocket (workpiece) quenches, the position subdrilling of using drill jig need process square hole at the valve pocket cylindrical by pincers worker goes out the wire cutting technology hole, after treating that the inside and outside round fine finishining of valve pocket is finished, slightly cut out square hole by the line cutting again, also will grind square hole to required precision at last by grinding the worker.Because the dimensional accuracy height of housing square edged orifice, especially circumferentially the coplane degree on throttling limit requires higher (≯ 0.002), grinding the careless slightly workpiece of worker will scrap, add the not only low grinding workload but also big that reaches of the not only slow precision of the cutting speed of reaching the standard grade, cause production efficiency quite low, the part production cost can be in any more, so need a kind of method of new employing spark machined, this method just needs special supporting processing tool.
Summary of the invention
A kind of a kind of frock that electric spark is beaten electro-hydraulic servo valve sleeve throttling square-hole that is used for that provides is provided technical problem to be solved by this invention, and is low with production efficiency in the solution prior art, the defective of machining accuracy difference.
A kind of electro-hydraulic servo valve sleeve throttling square-hole processing tool, comprise base plate (1), the tailstock (4) and the headstock (9) are housed on the base plate (1), be slidingly matched respectively in the two ends endoporus of valve pocket (6) tailstock mandrel (5) and taper shank mandrel (7) are housed, rotating disk (8) is housed in the endoporus of the described headstock (9) and has crank (10) to link to each other with rotating disk (8), the afterbody taper shank of described taper shank mandrel (7) cooperates with rotating disk (8) internal taper hole, described tailstock mandrel (5) and tailstock (4) endoporus are slidingly matched, pull bar (2) is equipped with in the end of tailstock mandrel (5), the outer stage clip (3) that also is equipped with of described pull bar (2), tailstock mandrel (5), taper shank mandrel (7), rotating disk (8) three is concentric, and tailstock mandrel (5) is contour with respect to base plate (1) bottom surface with taper shank mandrel (7).
The end thread of described pull bar (2) is opposite with shaft screw thread rotation direction.
Described tailstock (4) is slidingly mounted on the base plate (1).
Beneficial effect
The present invention is simple in structure, low cost of manufacture, good operation performance, long service life, and spacing that can be by regulating the headstock and tailstock and change the spark machined that taper shank mandrel, tailstock mandrel adapt to multiple model valve pocket, the coplane degree precision on square hole throttling limit can be accurately controlled, working (machining) efficiency can be significantly improved again.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of processed valve pocket;
Fig. 3 is the E-E cutaway view of Fig. 2.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
A kind of electro-hydraulic servo valve sleeve throttling square-hole processing tool, comprise base plate 1, the tailstock 4 and the headstock 9 are housed on the base plate 1, tailstock 4 can endwisely slip on base plate 1, be slidingly matched respectively in the two ends endoporus of valve pocket 6 tailstock mandrel 5 and taper shank mandrel 7 are housed, rotating disk 8 is housed in the endoporus of the described headstock 9 and has crank 10 to link to each other with rotating disk 8, the afterbody taper shank of described taper shank mandrel 7 cooperates with rotating disk 8 internal taper holes, described tailstock mandrel 5 and tailstock 4 endoporus are slidingly matched, pull bar 2 is equipped with in the end of tailstock mandrel 5, pull bar 2 is dextrorotation M16 screw thread, end thread is left-handed, the described pull bar 2 outer stage clips 3, tailstock mandrel 5 of also being equipped with, taper shank mandrel 7,8 threes are concentric for rotating disk, and tailstock mandrel 5 is contour with respect to base plate 1 bottom surface with taper shank mandrel 7.
Taper shank mandrel 7 adopts 40Cr to make, material is through being quenched to HRC40～45, its afterbody taper shank cooperates (contact-making surface〉85%) with rotating disk 8 internal taper holes, head cylindrical and valve pocket 10 endoporus cunnings are joined (gap ≯ 0.005), and with rotating disk 8 accurate concentric (total run-out ≯ 0.002).
Tailstock mandrel 5 adopts Cr12MoV to make, and material can accurate slip in tailstock 4 endoporus through being quenched to HRC50 ∽ 55
(gap ≯ 0.005), its head cylindrical and valve pocket 10 endoporus cunnings are joined (gap ≯ 0.005).
When can preventing to screw out, deviates from the derotation screw thread of pull bar 2 ends tailstock mandrel 5.
Stage clip 3 specifications are 2 * 20 * 40.
After frock assembles, must reach tailstock mandrel 5 and taper shank mandrel 7 accurate concentric (Concentricity tolerance ≯ 0.005), and relative base plate 1 bottom surface precision contour (deviation ≯ 0.003), then, between tailstock mandrel 5 and taper shank mandrel 7, be inserted in valve pocket 6, move behind the pulling pull bar 2 drive tailstocks 4 before being inserted in and abdicate axial space, advance pull bar 2 after being inserted in again, treat easily to screw in and slightly firmly continue to screw in 4～6mm (about 2～3 circles) again behind the about 3～4mm of M16 screw thread (about 1～2 circle) and hold out against valve pocket 6 end faces, can carry out spark machined, can drive valve pocket 6 by crank 10 control rotating disks 8 and taper shank mandrel 7 therebetween and carry out calibration, must unclamp the pressure of tailstock mandrel 5 before the calibration.
As shown in Figure 2, be the processed valve bush part structure chart of the present invention, the position of throttling square-hole 11 for processing among the figure.Because dimensional accuracy height, the especially straight flange of each square hole of circumferencial direction (being the throttling limit) of square hole, its coplane degree requires higher (≯ 0.002).Beat in the process of square hole at electric spark,,, also will directly have influence on the service behaviour of electrohydraulic servo valve directly having influence on the dimensional accuracy of square hole and the coplane degree precision on throttling limit if the tool locating precision does not reach requirement.
Claims (3)
1. electro-hydraulic servo valve sleeve throttling square-hole processing tool, it is characterized in that: comprise base plate (1), the tailstock (4) and the headstock (9) are housed on the base plate (1), be slidingly matched respectively in the two ends endoporus of valve pocket (6) tailstock mandrel (5) and taper shank mandrel (7) are housed, rotating disk (8) is housed in the endoporus of the described headstock (9) and has crank (10) to link to each other with rotating disk (8), the afterbody taper shank of described taper shank mandrel (7) cooperates with rotating disk (8) internal taper hole, described tailstock mandrel (5) and tailstock (4) endoporus are slidingly matched, pull bar (2) is equipped with in the end of tailstock mandrel (5), the outer stage clip (3) that also is equipped with of described pull bar (2), tailstock mandrel (5), taper shank mandrel (7), rotating disk (8) three is concentric, and tailstock mandrel (5) is contour with respect to base plate (1) bottom surface with taper shank mandrel (7).
2. electro-hydraulic servo valve sleeve throttling square-hole processing tool as claimed in claim 1 is characterized in that: the end thread of described pull bar (2) is opposite with shaft screw thread rotation direction.
3. electro-hydraulic servo valve sleeve throttling square-hole processing tool as claimed in claim 1 or 2 is characterized in that: described tailstock (4) is slidingly mounted on the base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102074235A CN101450407A (en) | 2008-12-19 | 2008-12-19 | Electro-hydraulic servo valve sleeve throttling square-hole processing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102074235A CN101450407A (en) | 2008-12-19 | 2008-12-19 | Electro-hydraulic servo valve sleeve throttling square-hole processing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101450407A true CN101450407A (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102074235A Pending CN101450407A (en) | 2008-12-19 | 2008-12-19 | Electro-hydraulic servo valve sleeve throttling square-hole processing tool |
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| CN (1) | CN101450407A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985205A (en) * | 2010-06-28 | 2013-03-20 | 罗伯特·博世有限公司 | Metallic component for high-pressure applications |
| CN103551884A (en) * | 2013-10-30 | 2014-02-05 | 北京航天新风机械设备有限责任公司 | Incline correcting tool for deep hole of plate type part |
| CN103658896A (en) * | 2013-11-28 | 2014-03-26 | 无锡市航鹄科技有限公司 | Shell linear-cutting positioning fixture |
| CN107598590A (en) * | 2017-11-02 | 2018-01-19 | 中国航天科技集团公司烽火机械厂 | A kind of accurate frock for processing valve pocket hole and a kind of valve pocket process equipment |
| CN109623055A (en) * | 2018-12-13 | 2019-04-16 | 上海航天控制技术研究所 | A kind of servo valve chest electric spark assembled tool |
| CN111618688A (en) * | 2020-06-09 | 2020-09-04 | 上海诺玛液压系统有限公司 | Servo valve core precision match grinding synchronous deburring tool |
| CN111618386A (en) * | 2020-05-21 | 2020-09-04 | 上海诺玛液压系统有限公司 | Fixture for precisely machining working edge of valve pocket of servo valve |
| CN114012194A (en) * | 2021-12-01 | 2022-02-08 | 通用技术集团机床工程研究院有限公司 | Electro-hydraulic servo valve sleeve precision finishing anchor clamps |
-
2008
- 2008-12-19 CN CNA2008102074235A patent/CN101450407A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985205A (en) * | 2010-06-28 | 2013-03-20 | 罗伯特·博世有限公司 | Metallic component for high-pressure applications |
| US9193000B2 (en) | 2010-06-28 | 2015-11-24 | Robert Bosch Gmbh | Metallic component for high-pressure applications |
| CN102985205B (en) * | 2010-06-28 | 2016-02-10 | 罗伯特·博世有限公司 | For the hardware of high-pressure applications |
| CN103551884A (en) * | 2013-10-30 | 2014-02-05 | 北京航天新风机械设备有限责任公司 | Incline correcting tool for deep hole of plate type part |
| CN103658896A (en) * | 2013-11-28 | 2014-03-26 | 无锡市航鹄科技有限公司 | Shell linear-cutting positioning fixture |
| CN107598590A (en) * | 2017-11-02 | 2018-01-19 | 中国航天科技集团公司烽火机械厂 | A kind of accurate frock for processing valve pocket hole and a kind of valve pocket process equipment |
| CN107598590B (en) * | 2017-11-02 | 2023-08-25 | 四川航天烽火伺服控制技术有限公司 | Precise tool for machining valve sleeve hole and valve sleeve machining equipment |
| CN109623055A (en) * | 2018-12-13 | 2019-04-16 | 上海航天控制技术研究所 | A kind of servo valve chest electric spark assembled tool |
| CN111618386A (en) * | 2020-05-21 | 2020-09-04 | 上海诺玛液压系统有限公司 | Fixture for precisely machining working edge of valve pocket of servo valve |
| CN111618386B (en) * | 2020-05-21 | 2023-02-03 | 上海诺玛液压系统有限公司 | Fixture for precisely machining working edge of valve pocket of servo valve |
| CN111618688A (en) * | 2020-06-09 | 2020-09-04 | 上海诺玛液压系统有限公司 | Servo valve core precision match grinding synchronous deburring tool |
| CN114012194A (en) * | 2021-12-01 | 2022-02-08 | 通用技术集团机床工程研究院有限公司 | Electro-hydraulic servo valve sleeve precision finishing anchor clamps |
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Application publication date: 20090610 |