CN101176927B - clipper for inclined hole of electro-hydraulic servo valve core drill and countersunk hole - Google Patents
clipper for inclined hole of electro-hydraulic servo valve core drill and countersunk hole Download PDFInfo
- Publication number
- CN101176927B CN101176927B CN2007101716396A CN200710171639A CN101176927B CN 101176927 B CN101176927 B CN 101176927B CN 2007101716396 A CN2007101716396 A CN 2007101716396A CN 200710171639 A CN200710171639 A CN 200710171639A CN 101176927 B CN101176927 B CN 101176927B
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- China
- Prior art keywords
- drill bushing
- valve core
- drilling body
- model drilling
- countersunk head
- Prior art date
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Abstract
The invention relates to a jig used for drilling incline hole and the countersunk keyhole on the valve core of electro-hydraulic servo valves, comprising a jigs body (1), a drill bush (2), a padding block (4), two drill bush seats (51) and (52), a straight pin (6) and two quick-changing drill bushes (7). The invention is characterized in that: jigs body (1) is vertically-faced on the left and right sides, front side and the back side and the lateral faces; two end faces are bilaterally symmetric and take an included angle Beta with the horizontal plane; the intracavity is a hollow cylinder coordinating with the valve core clearance; the drill bush erection holes, countersunk threaded hole are arranged at both ends of the cylinder, and the gap for the installation of the quick-changing drill bush and bolts are arranged on the lateral face of the cylinder. The invention has the advantages of convenient clamping of the valve core on the driller vice and processing two inclined holes and the countersunk keyholes on the driller. Meanwhile, on the premise of guaranteeing the processing requirements, the frequent clamping of the jig is consistent with the positioning precision, the work efficiency is increased and the requirement of the technical level of workers is lowered.
Description
Technical field
The invention belongs to the clamping tool for machine work field, particularly relate to a kind of electro-hydraulic servo valve core rat holing and countersunk head aperture anchor clamps.
Background technology
Electrohydraulic servo valve is a kind of high accuracy that is used for electrohydraulic control system, the electro-hydraulic servo control assembly with very high dynamic response, and it can be used for the hydraulic control system of accurate displacement, speed, power and acceleration.Spool is the strength member in the electrohydraulic servo valve, and it is little that it has a volume, the characteristics that the size and the accuracy of form and position are high.Two inclined holes require to connect and connect with the countersunk head aperture on the spool, and two inclined holes are 62mm, inclination angle deeply in ± 15 ' scope, countersunk head aperture countersunk head is that Φ 1.5mm * 3.85mm bottom outlet Φ 0.8mm connects, its structure as shown in Figure 1, existing anchor clamps are in that to add the man-hour location accurate inadequately, influence the precision of machining hole, and relied on manual operations mostly, very high to workman's specification requirement.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electro-hydraulic servo valve core rat holing and countersunk head aperture anchor clamps, locatees coarse defective with anchor clamps in the solution prior art.
Technical scheme
The invention provides a kind of electro-hydraulic servo valve core rat holing and countersunk head aperture anchor clamps, comprise model drilling body, drill bushing, cushion block, two drill bushing seats, straight pin, two quick change drill bushings, described model drilling body for the left-right and front-back side be vertical plane, two bottom face left-right symmetry and with the horizontal plane β that has angle, the hollow cylinder of inner chamber and the little matched in clearance of spool, its two ends are provided with drill bushing seat placement hole, countersunk head screwed hole, and right flank has the breach that quick change drill bushing and side screw are installed; The drill bushing of described two bottoms is arranged in the drill bushing seat installing hole; In the described countersunk head screwed hole jacking screw is installed, described cushion block is placed under the jacking screw, and described drill bushing seat is separately positioned in the drill bushing seat placement hole at model drilling body inner chamber two ends; Described straight pin and model drilling body interference fit are with the little matched in clearance of drill bushing seat.
Described drill bushing seat is screwed on model drilling body.
Described model drilling body back is equipped with housing screw.
Model drilling body left-right and front-back side is a vertical plane, made things convenient for clamping on vice, two bottom faces have left-right symmetry and intersect two bottom sides of the β that has angle respectively with the horizontal line of model drilling body, two inclined hole inclination angles have been guaranteed, the little matched in clearance of inner chamber and spool, guaranteed spool radial location precision, its inner chamber two ends are provided with drill bushing seat placement hole, guaranteed the axial location precision of spool, its back has the screwed hole that prevents valve core rotation screw in compression spool, right flank has the breach that quick change drill bushing and screw are installed, and has guaranteed the positional precision of countersunk head aperture.
Drill bushing is interference fitted in the drill bushing seat installing hole, and its material is Cr12MoV or T10A, and its hardness height, wear-resistant of back that quenches can play the guiding role for rat holing.Reduced requirement simultaneously, made easier processed come out of drill bushing seat drill bushing seat hardness.
Cushion block is arranged in the drill bushing seat placement hole, and its material is a tin bronze, and hardness is low, when jacking screw jack-up drill bushing seat, prevents that jacking screw from pushing up bad spool, protected spool.
The drill bushing seat is arranged on the inner chamber two ends that model drilling body is installed spool, and pressed spool has guaranteed the axial location precision of spool.
Straight pin and model drilling body interference fit play fixation, play the role of positioning with the little matched in clearance of drill bushing seat, guarantee the radial position of inclined hole on spool.
The quick change drill bushing is installed in the indentation, there that the model drilling body side is offered, and its material is Cr12MoV or T10A, and its hardness height, wear-resistant of back that quenches is done guide effect for boring the countersunk head aperture, improves the operating efficiency of boring the countersunk head aperture.
Beneficial effect
Electro-hydraulic servo valve core rat holing and the countersunk head aperture anchor clamps of being used for of the present invention have been adopted, made things convenient for the clamping of spool on drill press vise, the processing of two inclined holes and countersunk head aperture is carried out on drilling machine, simultaneously under the prerequisite that guarantees processing request, the uniformity of anchor clamps multiple clamping positioning accuracy is guaranteed, and the raising working (machining) efficiency, reduced requirement to workman's technical merit.
Description of drawings
The structural representation of Fig. 1 electro-hydraulic servo valve core;
Fig. 2 the present invention clips the front view of the later cutaway view of spool;
Fig. 3 the present invention clips the right view of the later cutaway view of spool.
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.
Embodiment 1
As Fig. 2, shown in Figure 3, earlier two drill bushings 2 are press-fitted respectively and enter two drill bushing seats 51,52, two straight pins 6 are compressed into model drilling body 1 respectively, then drill bushing seat 52 is located and is screwed at model drilling body one end by straight pin 6, the part to be processed spool of packing into, again drill bushing seat 51 is passed through the straight pin positioning and fixing at the model drilling body other end, pressed spool, tightening housing screw 33 rotates when the rat holing to prevent spool, load onto two quick change drill bushings 7, the countersunk head aperture bores two inclined holes more respectively in the middle of the subdrilling spool.A clamping is finished the processing of middle countersunk head aperture of spool and two inclined holes, has guaranteed the angle of inclination of two inclined holes and the position of symmetry and the middle countersunk head aperture of spool, has also guaranteed the uniformity with batch spool.Finish after the processing, turn on the lock-screw on the drill bushing seat 51, twist jacking screw 31 jack-up drill bushing seats 51 again, take out spool, finish the processing of these operation two inclined holes and countersunk head aperture.
Claims (3)
1. electro-hydraulic servo valve core rat holing and countersunk head aperture anchor clamps, comprise model drilling body (1), drill bushing on two bottoms (2), cushion block (4), two drill bushing seats (51,52), straight pin (6), two quick change drill bushings (7), it is characterized in that: described model drilling body (1) is a vertical plane for the left-right and front-back side, two bottom faces have left-right symmetry and intersect two bottom sides of the β that has angle respectively with the horizontal line of model drilling body, the hollow cylinder of inner chamber and the little matched in clearance of spool, its inner chamber two ends are provided with drill bushing seat placement hole, countersunk head screwed hole, right flank have the breach that quick change drill bushing (7) and side screw (32) are installed; Drill bushing (2) on described two bottoms is arranged in drill bushing seat (51, the 52) installing hole; On the described drill bushing seat (51) the countersunk head screwed hole is arranged, jacking screw (31) wherein is installed, described cushion block (4) is placed under the jacking screw (31); Described drill bushing seat (51,52) is separately positioned in the drill bushing seat placement hole at model drilling body (1) inner chamber two ends; Described straight pin (6) and model drilling body (1) interference fit are with the little matched in clearance of drill bushing seat (51,52).
2. electro-hydraulic servo valve core rat holing as claimed in claim 1 and countersunk head aperture anchor clamps is characterized in that: described drill bushing seat (51,52) is screwed on model drilling body (1).
3. electro-hydraulic servo valve core rat holing as claimed in claim 1 or 2 and countersunk head aperture anchor clamps is characterized in that: described model drilling body (1) back is equipped with housing screw (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101716396A CN101176927B (en) | 2007-11-30 | 2007-11-30 | clipper for inclined hole of electro-hydraulic servo valve core drill and countersunk hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101716396A CN101176927B (en) | 2007-11-30 | 2007-11-30 | clipper for inclined hole of electro-hydraulic servo valve core drill and countersunk hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101176927A CN101176927A (en) | 2008-05-14 |
| CN101176927B true CN101176927B (en) | 2010-06-02 |
Family
ID=39403434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101716396A Expired - Fee Related CN101176927B (en) | 2007-11-30 | 2007-11-30 | clipper for inclined hole of electro-hydraulic servo valve core drill and countersunk hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101176927B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450440B (en) * | 2008-12-19 | 2013-10-09 | 上海诺玛液压系统有限公司 | Valve-core and valve-core cushion press-fitting processing method |
| CN102172810A (en) * | 2011-03-18 | 2011-09-07 | 天津赛瑞机器设备有限公司 | Positioning method for use in machining of split bearing blocks |
| CN103801949A (en) * | 2014-02-20 | 2014-05-21 | 江苏泽恩汽机车部品制造有限公司 | Jig for machining inclined hole in cylindrical face |
| CN105149657B (en) * | 2015-09-28 | 2017-11-21 | 中国航天科技集团公司烽火机械厂 | Drill bushing and the drill jig with the drill bushing |
| CN112122657A (en) * | 2020-11-24 | 2020-12-25 | 四川航天长征装备制造有限公司 | Turnover tool for processing workpiece with oblique cross hole |
| CN113084558B (en) * | 2021-05-17 | 2022-04-01 | 温州市乐达洁具有限公司 | Tap case hole processing frock |
| CN114029707A (en) * | 2021-11-19 | 2022-02-11 | 沈阳航天新光集团有限公司 | Clamping tool for boring high-precision inclined taper hole and machining process |
-
2007
- 2007-11-30 CN CN2007101716396A patent/CN101176927B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101176927A (en) | 2008-05-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20131130 |