CN104827441A - High-precision compression-configured device of electro-hydraulic servo valve armature component - Google Patents
High-precision compression-configured device of electro-hydraulic servo valve armature component Download PDFInfo
- Publication number
- CN104827441A CN104827441A CN201510233040.5A CN201510233040A CN104827441A CN 104827441 A CN104827441 A CN 104827441A CN 201510233040 A CN201510233040 A CN 201510233040A CN 104827441 A CN104827441 A CN 104827441A
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- Prior art keywords
- armature
- hole
- component
- servo valve
- fitting device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention discloses a high-precision compression-configured device of an electro-hydraulic servo valve armature component. The armature component comprises a baffle plate, a tube spring, an armature and a feedback rod which are subsequently arranged in a compression way. The compression-configured device comprises a central component, an adjusting pedestal, a tube spring auxiliary clamping guide mechanism and an armature floatation supporting and positioning mechanism, wherein a longitudinal through hole is formed in the central component; a positioning block used for placing a positioning plate is arranged in the through hole; a compression-configured hole for the tube spring to reach in is formed in the positioning block; the adjusting pedestal is matched with the longitudinal through hole in the central component through screw threads; the top part of the adjusting pedestal pushes against the positioning block to drive the positioning block to move up and down; the tube spring auxiliary clamping guide mechanism comprises at least two transverse through holes which are symmetrical about the longitudinal through hole; a slide positioning baffle block which can extend into the longitudinal through hole to push against the tube spring is glidingly formed in each transverse through hole; the armature floatation supporting and positioning mechanism comprises two elastic component mounting holes symmetrical about the longitudinal through hole left and right; an elastic component and an armature supporting and positioning block which is arranged on the elastic component are arranged in each elastic component mounting hole. The device can assist workers to configure the armature component in a compressing way, so that the compression-configured precision and the production efficiency are greatly improved.
Description
Technical field
the present invention relates to a kind of armature component of electrohydraulic servo valve high accuracy press fitting device.
Background technology
electrohydraulic servo valve is at development experience 50 years of international professional domain, and the occasion of application is also more and more extensive.Electrohydraulic servo valve is the important control element in electrohydraulic servo-controlling system, plays the conversion of electric liquid and power amplification effect in systems in which.The Performance And Reliability of electrohydraulic servo valve is by the Performance And Reliability of direct influential system.The machining accuracy of part and the assembly precision of zero group of (portion) part are depended in the guarantee that electrohydraulic servo valve Performance And Reliability requires.
armature component is the critical component in power supply Servo-Valve Torque Motor, it is made up of armature C, pipe spring B, baffle plate A and feedback rod D tetra-parts, specifically as shown in Figure 1, in the axis hole that when being press-fitted assembling, pipe spring B is first pressed into baffle plate A center, close-fitting is fixed, armature C is compacted to pipe spring B top again, finally feedback rod D to be pressed in pipe spring B and with pipe spring B close-fitting.This armature component is contact servo valve three parts: the tie of torque-motor, nozzle-baffle plate and guiding valve, and its assembly precision requires very high, all plays very strict requirement to the selection of the magnitude of interference selection coordinated and stress point.
but at home servo valve research and manufacture also be in a relatively backward state.Especially in machine feedback Dual Injector Baffle formula electrohydraulic servo valve, current all dependence that be press-fitted of armature component is manually completed, for want of special positioning fixture and be press-fitted tool, workman is comparatively loaded down with trivial details and difficult when operating, for experience accumulation control also mainly being relied on workman of precision, often cause assembling error and careless omission, affect product quality, lack stable guarantee; And the workman that works long hours is easily tired, causes work efficiency drop.
Summary of the invention
the present invention seeks to: provide a kind of armature component of electrohydraulic servo valve high accuracy press fitting device, this device indirect labor can carry out being press-fitted of armature component of electrohydraulic servo valve, greatly improves and is press-fitted precision and production efficiency.
technical scheme of the present invention is: a kind of armature component of electrohydraulic servo valve high accuracy press fitting device, and described armature component comprises baffle plate, pipe spring, armature and the feedback rod that order is press-fitted; It is characterized in that described press fitting device comprises:
center piece, it has longitudinal hole, being provided with for putting and the locating piece of positioning baffle, locating piece having the press-fit holes stretched into for pipe spring in hole;
adjusting base, with the described longitudinal hole threaded engagement in center piece, and its top and described locating piece offset to drive, and to push up locating piece up and down;
pipe spring auxiliary clamp guiding mechanism, comprises and is located in center piece and about centrosymmetric at least two cross through hole of described longitudinal hole, is all slidably equipped with and can extends in longitudinal hole to push against the slip position block of pipe spring in each cross through hole;
armature float support detent mechanism, comprises and is located in center piece and about symmetrical two the elastic component placement holes of described longitudinal hole, is equipped with elastic component and is placed in the armature supporting and location block on elastic component in described elastic component placement hole.
further, the supporting and location block of armature described in the present invention top is provided with the recess for setting armature.Set armature by design recess, thus restriction armature rotates around center piece axle center (pipe spring) when being press-fitted, and plays the effect of positioning datum (location, angle).
further, recess described in the present invention is V-arrangement recess.
further, center piece described in the present invention is circular cylinder, and described longitudinal hole is positioned at the center of circular cylinder.
further, the periphery wall of center piece described in the present invention is provided with at least one flat bevel for location, angle.When being specifically press-fitted, fixture can be utilized center piece clamping and positioning, the flat bevel on its periphery can prevent it from rotating to realize location, angle.
further, elastic component described in the present invention is spring.
further, the present invention also comprises for baffle plate being fixed to alignment pin on described locating piece or dog screw.By alignment pin or dog screw, baffle plate is fixed on locating piece, can guarantees that direction when locating piece and pipe spring assemble and angle are located further.
further, alignment pin described in the present invention or dog screw are two or more, and to be centrosymmetric distribution about the press-fit holes on locating piece.
further, the contour shape of longitudinal hole described in the present invention mates with defining baffle radial rotating with the outer contour shape of baffle plate, and the outer contour shape of baffle plate is flat elongate strip, and it is well known to those skilled in the art.
operation principle of the present invention is as follows:
when being initially press-fitted, first adjusting base and center piece being combined, then locating piece is placed in the longitudinal hole of center piece, and itself and adjusting base top are offseted.
1) baffle plate assembling: be placed in by baffle plate on locating piece, the axis hole of baffle center is relative with the press-fit holes on locating piece; Utilize alignment pin (or dog screw) to be fixed on locating piece by baffle plate, realize location, direction and location, angle;
2) pipe spring is press-fitted: axis hole pipe spring being loaded baffle center, and the press-fit holes on locating piece is then stretched in pipe spring bottom; Insert slip position block with pinch tube spring from center piece surrounding, then for pipe spring applies the power of axis, make the axis hole close-fitting of itself and baffle center;
3) being press-fitted of armature: armature is placed in pipe spring top by its central axle hole clamping sleeve, and in course of exerting pressure, armature both sides are by the armature supporting and location block supporting and location of elastic floating, and compensating error, Adjustment precision;
4) feedback rod is pressed into until both close-fittings from pipe spring top.
finally removing the slip position block in center piece, can take out being press-fitted complete armature component in device.
advantage of the present invention is:
1. to be specialized designs carry out for indirect labor the device that armature component of electrohydraulic servo valve is press-fitted in the present invention, the order that can realize the baffle plate in armature component, pipe spring, armature and feedback rod is press-fitted, and the matching error reduced between all parts, thus raising is press-fitted precision and end product quality greatly; Compare original full manual assembly simultaneously, eliminate a large amount of operation, save the time, effectively raise production efficiency, and decrease human error.
2. all parts of apparatus of the present invention all strictly designs according to the press-fit relationship of armature component, ensure that the many-sided required precision such as concentricity, glacing flatness when armature component each several part assembles targetedly.
3. device of the present invention is because being designed with armature float support detent mechanism, this in-house armature supporting and location block supports can fluctuate by elastic component, guarantee can compensate armature both sides gradient error in the process being press-fitted armature, give armature more adjustable space, thus guarantee effectively to be press-fitted precision between armature and pipe spring.And the recess at armature supporting and location block top can implement location, angle to armature, limits it and rotates, and improves further and is press-fitted precision.
4. device of the present invention is because being designed with pipe spring auxiliary clamp guiding mechanism, this mechanism can be press-fitted in force process as it provides radial clamping force at pipe spring, give the guiding that pipe spring is completely longitudinal, prevent the stress (because of the thinner 0.06mm of pipe spring tube wall) for tube wall, thus effectively guarantee that pipe spring is being press-fitted generation distortion in process, strong improve is press-fitted precision, ensure that and is press-fitted quality.
5. device of the present invention, overall structure is simple, and parts are few, and production cost is low, use easy to operate simultaneously, have higher popularization practical value.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is that existing armature component is press-fitted procedure chart;
fig. 2 is the main structure profile of apparatus of the present invention;
fig. 3 is another angled arrangement profile of apparatus of the present invention;
fig. 4 is the stereochemical structure exploded view (omission alignment pin) of apparatus of the present invention.
wherein: 1, adjusting base; 2, center piece; 2a, longitudinal hole; 2b, cross through hole; 2c, elastic component placement hole; 3, locating piece; 3a, press-fit holes; 4, slip position block; 5, armature component; A, baffle plate; B, pipe spring; C, armature; D, feedback rod; 6, armature supporting and location block; 6a, recess; 7, elastic component; 8, alignment pin.
Detailed description of the invention
embodiment: a kind of specific embodiment of composition graphs 2 ~ Figure 4 shows that armature component of electrohydraulic servo valve high accuracy press fitting device of the present invention, its main indirect labor completes being press-fitted of armature component (being labeled as 5 in Fig. 2 ~ 4) as shown in Figure 1, armature component 5 comprises baffle plate A, pipe spring B, armature C and the feedback rod D that order is press-fitted, and its package assembly is existing routine techniques.
specifically see shown in Fig. 2 ~ Fig. 4, this armature component of electrohydraulic servo valve high accuracy press fitting device of the present embodiment, it is constructed as follows:
center piece 2 is circular cylinder, and the center of circular cylinder has longitudinal hole 2a, being provided with for putting and the locating piece 3 of positioning baffle A, locating piece 3 having the press-fit holes 3a stretched into for pipe spring B in hole; And left and right is arranged with two flat bevels (invisible in figure) for location, angle on the periphery wall of center piece 2 described in the present embodiment, when being specifically press-fitted, fixture can be utilized center piece 2 clamping and positioning, and the flat bevel on its periphery can prevent it from rotating to realize location, angle.Described in the present embodiment, the contour shape of longitudinal hole 2a mates with the outer contour shape of baffle plate A with defining baffle A radial rotating simultaneously.
adjusting base 1, with the described longitudinal hole 2a threaded engagement in center piece 2, and its top and described locating piece 3 offset to drive, and to push up locating piece 3 up and down;
pipe spring auxiliary clamp guiding mechanism, has and is located in center piece 2 and about centrosymmetric two the cross through hole 2b of described longitudinal hole 2a, is all slidably equipped with and can extends in longitudinal hole 2a to push against the slip position block 4 of pipe spring B in each cross through hole 2b;
armature float support detent mechanism, has and is located in center piece 2 and about symmetrical two the elastic component placement hole 2c of described longitudinal hole 2a, is equipped with elastic component 7 and the armature supporting and location block 6 be placed on elastic component 7 in described elastic component placement hole 2c.Elastic component 7 in the present embodiment is spring.The supporting and location of armature described in the present embodiment block 6 top is provided with the recess 6a for setting armature C, and recess 6a is V-arrangement recess.Set armature C by design recess 6a, thus restriction armature C rotates around center piece 2 axle center (pipe spring B) when being press-fitted, and plays the effect of positioning datum (location, angle).
the alignment pin 8 for being fixed to by baffle plate A on described locating piece 3 is also provided with in the present embodiment.Described alignment pin 8 is two, and to be centrosymmetric distribution about the press-fit holes 3a on locating piece 3.
the operation principle of the present embodiment is as follows:
when being initially press-fitted, first adjusting base 1 and center piece 2 being combined, then locating piece 3 is placed in the longitudinal hole 2a of center piece 2, and itself and adjusting base 1 top are offseted.
1) baffle plate A assembles: be placed in by baffle plate A on locating piece 3, and the axis hole at baffle plate A center is relative with the press-fit holes 3a on locating piece 3; Utilize alignment pin 8 to be fixed on locating piece 3 by baffle plate A, realize location, direction and location, angle;
2) pipe spring B is press-fitted: axis hole pipe spring B being loaded baffle plate A center, and the press-fit holes 3a on locating piece 3 is then stretched in pipe spring B bottom; Insert slip position block 4 with pinch tube spring B from center piece 2 surrounding, then for pipe spring B applies the power of axis, make the axis hole close-fitting at itself and baffle plate A center;
3) being press-fitted of armature C: armature C is placed in pipe spring B top by its central axle hole clamping sleeve, and in course of exerting pressure, armature C both sides are by armature supporting and location block 6 supporting and location of elastic floating, and compensating error, Adjustment precision;
4) feedback rod D is pressed into until both close-fittings from pipe spring B top.
finally removing the slip position block 4 in center piece 2, can take out being press-fitted complete armature component 5 in device.
certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications done according to the Spirit Essence of main technical schemes of the present invention, all should be encompassed within protection scope of the present invention.
Claims (9)
1. an armature component of electrohydraulic servo valve high accuracy press fitting device, described armature component (5) comprises baffle plate (A), pipe spring (B), armature (C) and the feedback rod (D) that order is press-fitted; It is characterized in that described press fitting device comprises:
Center piece (2), it has longitudinal hole (2a), being provided with for putting and the locating piece (3) of positioning baffle (A), locating piece (3) having the press-fit holes (3a) stretched into for pipe spring (B) in hole;
Adjusting base (1), with described longitudinal hole (2a) threaded engagement in center piece (2), and its top and described locating piece (3) offset to drive, and to push up locating piece (3) up and down;
Pipe spring auxiliary clamp guiding mechanism, comprise and be located in center piece (2) and about centrosymmetric at least two cross through hole (2b) of described longitudinal hole (2a), be all slidably equipped with in each cross through hole (2b) and can extend in longitudinal hole (2a) to push against the slip position block (4) of pipe spring (B);
Armature float support detent mechanism, comprise that to be located at center piece (2) upper and about symmetrical two the elastic component placement holes (2c) of described longitudinal hole (2a), the armature supporting and location block (6) being equipped with elastic component (7) in described elastic component placement hole (2c) and being placed on elastic component (7).
2. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 1, is characterized in that described armature supporting and location block (6) top is provided with the recess (6a) for setting armature (C).
3. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 2, is characterized in that described recess (6a) is for V-arrangement recess.
4. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 1, it is characterized in that described center piece (2) is circular cylinder, described longitudinal hole (2a) is positioned at the center of circular cylinder.
5. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 4, is characterized in that described center piece (2) periphery wall is provided with at least one flat bevel for location, angle.
6. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 1, is characterized in that elastic component (7) is spring.
7. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 1, characterized by further comprising for baffle plate (A) being fixed to alignment pin (8) on described locating piece (3) or dog screw.
8. armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 7, is characterized in that described alignment pin (8) or dog screw are two or more, and to be centrosymmetric distribution about the press-fit holes (3a) on locating piece (3).
9. the armature component of electrohydraulic servo valve high accuracy press fitting device according to claim 1 or 4 or 7 or 8, is characterized in that the contour shape of described longitudinal hole (2a) mates with the outer contour shape of baffle plate (A) with defining baffle (A) radial rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233040.5A CN104827441B (en) | 2015-05-08 | 2015-05-08 | Armature component of electrohydraulic servo valve high accuracy press fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233040.5A CN104827441B (en) | 2015-05-08 | 2015-05-08 | Armature component of electrohydraulic servo valve high accuracy press fitting device |
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| Publication Number | Publication Date |
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| CN104827441A true CN104827441A (en) | 2015-08-12 |
| CN104827441B CN104827441B (en) | 2017-01-04 |
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| CN201510233040.5A Expired - Fee Related CN104827441B (en) | 2015-05-08 | 2015-05-08 | Armature component of electrohydraulic servo valve high accuracy press fitting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291045A (en) * | 2015-11-19 | 2016-02-03 | 上海衡拓液压控制技术有限公司 | Limiting and press-fit process device and method for thin-walled tube assembly |
| CN105290782A (en) * | 2015-11-20 | 2016-02-03 | 上海衡拓液压控制技术有限公司 | Servo valve assembly limiting and press-fitting process equipment and method |
| CN107878857A (en) * | 2017-10-10 | 2018-04-06 | 苏州首达机械有限公司 | A kind of positioning regulating mechanism |
| CN112570846A (en) * | 2020-11-17 | 2021-03-30 | 中国航发西安动力控制科技有限公司 | Positioning welding fixture and welding method for assembling thin-wall feedback rod of hydraulic servo valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291045A (en) * | 2015-11-19 | 2016-02-03 | 上海衡拓液压控制技术有限公司 | Limiting and press-fit process device and method for thin-walled tube assembly |
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| CN107878857A (en) * | 2017-10-10 | 2018-04-06 | 苏州首达机械有限公司 | A kind of positioning regulating mechanism |
| CN112570846A (en) * | 2020-11-17 | 2021-03-30 | 中国航发西安动力控制科技有限公司 | Positioning welding fixture and welding method for assembling thin-wall feedback rod of hydraulic servo valve |
| CN112570846B (en) * | 2020-11-17 | 2022-03-08 | 中国航发西安动力控制科技有限公司 | Positioning welding fixture and welding method for assembling thin-wall feedback rod of hydraulic servo valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104827441B (en) | 2017-01-04 |
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Granted publication date: 20170104 Termination date: 20200508 |