CN101450452A - Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve - Google Patents
Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve Download PDFInfo
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- CN101450452A CN101450452A CNA2007101715162A CN200710171516A CN101450452A CN 101450452 A CN101450452 A CN 101450452A CN A2007101715162 A CNA2007101715162 A CN A2007101715162A CN 200710171516 A CN200710171516 A CN 200710171516A CN 101450452 A CN101450452 A CN 101450452A
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- grinding
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- sleeve
- bar
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Abstract
The invention discloses a grinding rod for processing a valve sleeve bore of an electro hydraulic servo-valve, which comprises a grinding expansible rod and a grinding expansible sleeve. The grinding expansible rod is formed by a rod head and a rod body connected with the rod head, wherein the rod body is a big-end-up conical rod. The external surface of the grinding expansible sleeve is a cylinder, while an inner cavity is a big-end-up tapered hole with the same taper as the grinding expansible rod, and the maximum diameter of the grinding expansible sleeve is smaller than that of the grinding expansible rod; the wall surface of the grinding expansible sleeve is axially provided with a narrow slit to increase the sleeve elasticity of the grinding expansible sleeve; and the grinding expansible sleeve is sleeved on the grinding expansible rod. The assembled grinding rod is integrally clamped on a grinding machine, and the bore of a valve sleeve is sleeved in the grinding rod for grinding, meanwhile, the dimension of a bore of the ground valve sleeve can be accurately controlled through adjusting the axial position of the grinding expansible sleeve on the grinding expansible rod. The grinding rod has the advantages of simple structure, low manufacture cost, good operating performance and long service life, and can accurately control the accuracy of the dimension of the bore of the valve sleeve.
Description
Technical field
The present invention relates to a kind of grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve.
Technical background
Be used for the used electro-hydraulic servo valve bush method for machining bore of electrohydraulic control system at present: solid cylindrical grinding rod of clamping on grinder, the valve pocket endoporus is inserted in grinding rod and grinds, and the dimensional accuracy of its endoporus guarantees by the outside dimension of grinding rod itself fully.Because the precision height, grinding rod has wearing and tearing promptly to scrap slightly.For guaranteeing to produce normally needs, need to prepare a collection of grinding rod by the margin of tolerance in advance, the cost height, and change trouble, efficient is low.
Summary of the invention
The objective of the invention is to overcome the defective of existing process technology and a kind of grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve is provided, it simple in structure, low cost of manufacture, good operation performance.
The technical scheme that realizes above-mentioned purpose is: a kind of grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve, comprise that one grinds the bar and that rises and grinds ringfeder, wherein,
The described grinding bar that rises is made of the shaft of a bar head and a connecting-rod cap, and this shaft is a up big and down small tapered rod;
The outer surface of described grinding ringfeder is a cylinder and inner chamber for rising by the identical up big and down small bellmouth of the tapering of bar and its maximum gauge less than the rise maximum gauge of bar of grinding with grinding, axially offers one on the wall of this grinding ringfeder to increase the flexible narrow slit of its suit;
Described grinding ringfeder is sleeved on and grinds on the bar that rises.
The above-mentioned grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve, wherein, the rise shaft tapering of bar of described grinding is 1:50.
The above-mentioned grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve, wherein, the rise material of bar of described grinding is spring steel 65Mn, material through quench, tempering, the material of described grinding ringfeder is a spheroidal graphite cast-iron.
The grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve of the present invention, simple in structure, low cost of manufacture, good operation performance can significantly improve working (machining) efficiency, and can accurately control the endoporus dimensional accuracy of valve pocket, and not fragile, long service life.
Description of drawings
Fig. 1 is the structural representation of valve pocket in the electrohydraulic servo valve;
Fig. 2 is the structural representation of the grinding rod of the valve pocket endoporus that is used to process electrohydraulic servo valve of the present invention;
Fig. 3 grinds the structural representation of ringfeder for the grinding rod that is used for processing the valve pocket endoporus of electrohydraulic servo valve of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
See also Fig. 1, be the processed valve pocket 3 of the present invention among the figure, the position of endoporus 30 for processing of valve pocket 3, because the endoporus 30 and the spool of valve pocket 3 are slidingly matched, it is very high to be that dimensional accuracy or surface roughness all require, if error is excessive, not only has influence on the assembly performance of valve pocket, spool, but also directly have influence on the servo valve integral working performances.
See also Fig. 2 and Fig. 3 again, the grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve of the present invention comprises that one grinds the bar 1 and that rises and grinds ringfeder 2, wherein,
The grinding bar 1 that rises is made of the shaft 12 of a bar head 11 and a connecting-rod cap 11, and this shaft 12 is a up big and down small tapered rod, and its material is spring steel 65Mn, material through quench, tempering, its tapering is 1:50;
The material that grinds ringfeder 2 is a spheroidal graphite cast-iron, its outer surface is a cylinder 21, its inner chamber 22 is a up big and down small bellmouth, the tapering of this inner chamber 22 is identical with the tapering that grinds the bar 1 that rises, the maximum gauge of this inner chamber 22 is less than the rise maximum gauge of bar 1 of grinding, also axially offer one narrow slit 23 on the wall of this grinding ringfeder 2, to increase its suit elasticity;
Grinding ringfeder 2 is sleeved on and grinds on the bar 1 that rises,
The grinding rod integral installation that assembles is clipped on the grinder, the endoporus 30 of valve pocket 3 is inserted in grinding rod and is ground by the endoporus 30 that grinds 2 pairs of valve pockets 3 of ringfeder, wearing and tearing are arranged and its outside dimension is diminished if grind the outer surface of ringfeder 2 therebetween, and when having influence on the dimensional accuracy of endoporus 30 of valve pocket 3, it is constant to control the outer surface diameter of grinding ringfeder 2 by the axial location of adjusting grinding ringfeder 2 on grinding rises by bar 1, grinds the dimensional accuracy that the endoporus 30 of 2 pairs of valve pockets 3 of ringfeder grinds to reach accurate control.
Above embodiment is only for the usefulness that the present invention is described, but not limiting the scope of the invention.Relevant those skilled in the art under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, and the technical scheme that all are equal to also should belong within the category of the present invention's protection, is limited by each claim.
Claims (3)
1. grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve comprises that one grinds the bar and that rises and grinds ringfeder, it is characterized in that,
The described grinding bar that rises is made of the shaft of a bar head and a connecting-rod cap, and this shaft is a up big and down small tapered rod;
The outer surface of described grinding ringfeder is a cylinder and inner chamber for rising by the identical up big and down small bellmouth of the tapering of bar and its maximum gauge less than the rise maximum gauge of bar of grinding with grinding, axially offers one on the wall of this grinding ringfeder to increase the flexible narrow slit of its suit;
Described grinding ringfeder is sleeved on and grinds on the bar that rises.
2. the grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve according to claim 1 is characterized in that, the rise shaft tapering of bar of described grinding is 1:50.
3. the grinding rod that is used to process the valve pocket endoporus of electrohydraulic servo valve according to claim 1 is characterized in that, the rise material of bar of described grinding is spring steel 65Mn, material through quench, tempering, the material of described grinding ringfeder is a spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101715162A CN101450452A (en) | 2007-11-30 | 2007-11-30 | Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101715162A CN101450452A (en) | 2007-11-30 | 2007-11-30 | Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101450452A true CN101450452A (en) | 2009-06-10 |
Family
ID=40733034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101715162A Pending CN101450452A (en) | 2007-11-30 | 2007-11-30 | Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101450452A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774142A (en) * | 2010-03-03 | 2010-07-14 | 合肥车桥有限责任公司 | Small-hole grinding tool for correcting hole diameter |
| CN102513922A (en) * | 2011-12-23 | 2012-06-27 | 江西鑫源传感器有限责任公司 | Inner hole grinding process of voltage detector body |
| CN102922408A (en) * | 2012-10-09 | 2013-02-13 | 中船澄西船舶修造有限公司 | Lathe tailstock hole grinding fixture |
| CN103240669A (en) * | 2013-05-02 | 2013-08-14 | 贵州大学 | Bore grinding shaft and application method thereof |
| CN103273416A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Grinding rods of cold heading steel cavity dies for earring type bolts and application thereof |
| CN105563316A (en) * | 2015-12-15 | 2016-05-11 | 贵州凯星液力传动机械有限公司 | Processing device for great-length-to-diameter-ratio deep hole control valve |
| CN110712074A (en) * | 2019-10-11 | 2020-01-21 | 内蒙古第一机械集团有限公司 | Method for repairing spindle taper hole by using self-grinding device |
| CN112605749A (en) * | 2020-11-16 | 2021-04-06 | 中国航发西安动力控制科技有限公司 | Inner hole grinding device with two ends synchronously expanding and quantitatively adjusting |
| CN114147546A (en) * | 2021-10-19 | 2022-03-08 | 国营芜湖机械厂 | Manual grinding method for blind hole of hydraulic pump rotor |
-
2007
- 2007-11-30 CN CNA2007101715162A patent/CN101450452A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774142A (en) * | 2010-03-03 | 2010-07-14 | 合肥车桥有限责任公司 | Small-hole grinding tool for correcting hole diameter |
| CN102513922A (en) * | 2011-12-23 | 2012-06-27 | 江西鑫源传感器有限责任公司 | Inner hole grinding process of voltage detector body |
| CN102922408A (en) * | 2012-10-09 | 2013-02-13 | 中船澄西船舶修造有限公司 | Lathe tailstock hole grinding fixture |
| CN103240669A (en) * | 2013-05-02 | 2013-08-14 | 贵州大学 | Bore grinding shaft and application method thereof |
| CN103240669B (en) * | 2013-05-02 | 2015-09-02 | 贵州大学 | A kind of endoporus grinding shaft and using method thereof |
| CN103273416A (en) * | 2013-06-14 | 2013-09-04 | 沈阳飞机工业（集团）有限公司 | Grinding rods of cold heading steel cavity dies for earring type bolts and application thereof |
| CN105563316A (en) * | 2015-12-15 | 2016-05-11 | 贵州凯星液力传动机械有限公司 | Processing device for great-length-to-diameter-ratio deep hole control valve |
| CN110712074A (en) * | 2019-10-11 | 2020-01-21 | 内蒙古第一机械集团有限公司 | Method for repairing spindle taper hole by using self-grinding device |
| CN110712074B (en) * | 2019-10-11 | 2021-08-17 | 内蒙古第一机械集团有限公司 | Method for repairing spindle taper hole by using self-grinding device |
| CN112605749A (en) * | 2020-11-16 | 2021-04-06 | 中国航发西安动力控制科技有限公司 | Inner hole grinding device with two ends synchronously expanding and quantitatively adjusting |
| CN112605749B (en) * | 2020-11-16 | 2023-07-21 | 中国航发西安动力控制科技有限公司 | Quantitative adjusting type inner hole grinding device capable of synchronously expanding at two ends |
| CN114147546A (en) * | 2021-10-19 | 2022-03-08 | 国营芜湖机械厂 | Manual grinding method for blind hole of hydraulic pump rotor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090610 |