CN209408209U - Automatic grinding, detection servo valve valve pocket side window device - Google Patents

Automatic grinding, detection servo valve valve pocket side window device Download PDF

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Publication number
CN209408209U
CN209408209U CN201821957258.0U CN201821957258U CN209408209U CN 209408209 U CN209408209 U CN 209408209U CN 201821957258 U CN201821957258 U CN 201821957258U CN 209408209 U CN209408209 U CN 209408209U
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China
Prior art keywords
valve pocket
servo valve
motor
mandrel
pressing plate
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Application number
CN201821957258.0U
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Chinese (zh)
Inventor
陈冬冬
周竹
马立瑞
余萍
方群
赵华龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI HENGTUO HYDRAULIC CONTROL TECHNOLOGY Co Ltd
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SHANGHAI HENGTUO HYDRAULIC CONTROL TECHNOLOGY Co Ltd
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Priority to CN201821957258.0U priority Critical patent/CN209408209U/en
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Abstract

The utility model relates to a kind of automatic grindings, detect servo valve valve pocket side window device, mandrel is mounted in the main aperture of clamp body, servo valve valve pocket and LVDT sensor are socketed on mandrel, LVDT sensor upper surface is fixedly connected with servo valve valve pocket lower end surface, conversion circuit is arranged in the clamp body of corresponding LVDT sensor, pillar is fixedly connected with above clamp body, pressing plate one end connection pillar, the other end is socketed in mandrel top, mandrel upper end is screwed with M gear type nut, M gear type nut is connect with plane on pressing plate, motor one is fixedly connected on pressing plate, gear on motor one is connected by meshing transmission with M gear type nut;Spring is connected between pressing plate and servo valve valve pocket;Described lapping stick one end is put in servo valve valve pocket side window, and the rack gear on the other end engages connection with the gear on motor two.Grinding precision and efficiency can be effectively improved using the device of the utility model, to solve valve pocket match grinding process bottleneck, realize that electrohydraulic servo valve batch production lays the foundation.

Description

Automatic grinding, detection servo valve valve pocket side window device
Technical field
The utility model relates to a kind of electro-hydraulic servo, especially a kind of grinding for electro-hydraulic servo, detection device.
Background technique
Electrohydraulic servo system response frequency with higher, higher power-weight ratio and torque ratio of inertias, in aviation, boat It, the control fields such as ship are widely used.Electrohydraulic servo valve is the key element for determining electrohydraulic servo system performance, due to its essence Degree requires height, manufacture difficulty larger, can not be produced in enormous quantities at present, and the bottleneck for restricting electrohydraulic servo valve batch production is Slide valve match grinding process.The technical level and further investigation of slide valve match grinding efficiency and quality strong depend-ence operator, therefore match grinding Technical process human factor influences obvious.Therefore, it is necessary to a kind of automatic grinding, detection servo valve valve pocket side window technique, this skills Art can reduce human factor influence as far as possible during match grinding process, to reach design parameter requirement, improve product Stability and reliability, realize the demand of batch production.
Summary of the invention
The utility model is will be for a kind of automatic grinding, detection servo valve valve pocket side window device, to meet to servo valve Valve pocket side's window automatic grinding, detection requirement.
To achieve the above object, the technical solution of the utility model is: a kind of automatic grinding, detection servo valve valve pocket side window Mouthful device, including mandrel, conversion circuit, LVDT sensor, servo valve valve pocket, pillar, pressing plate, M gear type nut, motor one, Spring, lapping stick, position plate, clamp body, motor two, supporting table, the mandrel are mounted in the main aperture of clamp body, the mandrel Upper socket servo valve valve pocket and LVDT sensor, LVDT sensor upper surface are fixedly connected with servo valve valve pocket lower end surface, conversion Circuit is arranged in the clamp body of corresponding LVDT sensor, is fixedly connected with pillar above clamp body, pressing plate one end connection pillar, separately One end is socketed in mandrel top, and pressing plate can be moved up and down along pillar and mandrel, and mandrel upper end is screwed with M gear type nut, M gear type Nut is connect with plane on pressing plate, and motor one is fixedly connected on pressing plate, the gear on motor one and M gear type nut engaged transmission Connection;Spring is connected between pressing plate and servo valve valve pocket;Described lapping stick one end is put in servo valve valve pocket side window, another Rack gear on end engages connection with the gear on motor two, and motor two is fixedly connected in supporting table.
Further, the LVDT sensor is fixedly connected by way of gluing with servo valve valve pocket.
Further, the conversion circuit is fixedly connected by way of buckle with clamp body.
Further, the servo valve valve pocket main aperture and mandrel be by clearance fit, at the same pressing plate and servo valve valve pocket it Between spring is installed.
Further, position plate is also equipped with above the clamp body, orientation front edge of board is welded with hard alloy layer.
Further, hard alloy layer is welded in the medial launder contacted above the clamp body with lapping stick.
Further, the conversion circuit signal input part connects the signal output end of controller, conversion electricity by amplifier The signal of road signal output end output is divided into two-way: signal feeding motor two all the way;Another way signal is received and is watched to motor one Take the signal of the displacement stroke of the LVDT sensor feedback servo valve valve pocket at valve valve pocket lower end.
The beneficial effects of the utility model are:
According to the verification experimental verification that practical valve pocket is ground, using the automatic grinding of the utility model, detection servo valve valve pocket side Window device can effectively improve grinding precision and efficiency, to solve valve pocket match grinding process bottleneck, realize electrohydraulic servo valve batch Amount production lays the foundation.
Detailed description of the invention
Fig. 1 is automatic grinding, detection servo valve valve pocket square punch device assembly construction top view;
Fig. 2 be Fig. 1 in along the sectional view of A-A;
Fig. 3 is automatic grinding, the working principle block diagram for detecting servo valve valve pocket side window device.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
As shown in figures 1 and 2, a kind of automatic grinding, detection servo valve valve pocket side window device, including mandrel 1, conversion circuit 2, LVDT sensor 3, servo valve valve pocket 4, pillar 5, M3 screw 6, pressing plate 7, M6 gear type nut 8, motor 1, M3.5 spiral shell Nail 10, spring 11, lapping stick 12, M8 screw 13, position plate 14, clamp body 15, motor 2 16, supporting table 17 etc..Mandrel 1 is installed In 15 main aperture of clamp body, it is fixed by stepped hole and M6 gear type nut 8;LVDT sensor 3 and servo valve valve pocket 4 are logical LVDT sensor 3 is fixed the mode for crossing gluing;Conversion circuit 2 is fixed by way of buckle with clamp body 15; 4 main aperture of servo valve valve pocket and mandrel 1 install spring 11 by clearance fit between pressing plate 7 and servo valve valve pocket 4, lead to It crosses and tightens/unscrew the mode of M6 gear type nut 8 to apply load;Pillar 5 is connected with clamp body 15 by the screw thread of M8 It connects;Pressing plate 7 is compressed by M3 screw 6 with pillar 5, is fixed;Motor 1 and pressing plate 7 are consolidated by M3.5 screw 10 It is fixed, while one 9 gear of motor is engaged by gear with M6 gear type nut 8 and carries out power transmission;Position plate 14 and clamp body 15 are fixed by M8 screw 13.Hard alloy layer is welded on position plate 14 by way of copper brazing by 14 front end of position plate Front end;Hard alloy layer is welded wherein by way of copper brazing in medial launder above clamp body 15;Lapping stick 12 is stretched Into in 4 side's window of servo valve valve pocket, because spring 11 has precompression, so that 12 upper surface of lapping stick is pressed in 4 side's window of servo valve valve pocket Working face on mouth;12 other end of lapping stick is attached by way of being engaged with motor 2 16 gear, passes through motor 2 16 Positive and negative rotation drives lapping stick 12 to move back and forth, to realize that lapping stick 12 grinds the work of servo valve valve pocket 4 side's window With.Motor 2 16 is by welding by tube chamber welds with base in supporting table 17.
Automatic grinding, the working principle diagram for detecting servo valve valve pocket side window device are as shown in Figure 3.According to servo valve valve pocket Square window reserves attrition process amount, and inputting a numerical value is input signal, and input signal carries out signal amplification by amplifier, Decomposite two paths of signals using conversion circuit: signal feeding motor two all the way, this signal make motor two carry out reciprocating rotary, To drive lapping stick to move back and forth, the function of grinding valve pocket side's window is realized;Another way signal passes through motor one to motor one Rotation drive gear type nut so that initial tension of spring increases or reduces, when initial tension of spring increases, so that spring-compressed The power of servo valve valve pocket is bigger, and the amount so as to cause lapping stick grinding servo valve valve pocket side window is bigger, while passing through servo valve LVDT sensor at valve pocket lower end carries out the displacement stroke of feedback servo valve valve pocket, compares with input signal, thus shape It is controlled at a kind of electric feedback closed loop.

Claims (7)

1. a kind of automatic grinding, detection servo valve valve pocket side window device, including mandrel (1), conversion circuit (2), LVDT sensing Device (3), servo valve valve pocket (4), pillar (5), pressing plate (7), M6 gear type nut (8), motor one (9), spring (11), lapping stick (12), clamp body (15), motor two (16), supporting table (17), it is characterised in that: the mandrel (1) is mounted on clamp body (15) Main aperture in, be socketed servo valve valve pocket (4) and LVDT sensor (3) on the mandrel (1), LVDT sensor (3) upper surface and Servo valve valve pocket (4) lower end surface is fixedly connected, and clamp body (15) of conversion circuit (2) setting in corresponding LVDT sensor (3) is interior, Clamp body (15) is fixedly connected pillar (5) above, and pressing plate (7) one end connection pillar (5), the other end is socketed in mandrel (1) top, Pressing plate (7) can be moved up and down along pillar (5) and mandrel (1), and mandrel (1) upper end is screwed with M6 gear type nut (8), M6 gear type spiral shell Female (8) are connect with plane on pressing plate (7), and motor one (9) is fixedly connected on pressing plate (7), the gear on motor one (9) and M6 gear Type nut (8) is connected by meshing transmission;Spring (11) are connected between pressing plate (7) and servo valve valve pocket (4);The lapping stick (12) One end is put in the square window of servo valve valve pocket (4), and the rack gear on the other end engages connection, motor with the gear on motor two (16) Two (16) are fixedly connected on supporting table (17).
2. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: described LVDT sensor (3) is fixedly connected by way of gluing with servo valve valve pocket (4).
3. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: described turn Circuit (2) is changed to be fixedly connected by way of buckle with clamp body (15).
4. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: described to watch Valve valve pocket (4) main aperture and mandrel (1) are taken by clearance fit, while spring being installed between pressing plate (7) and servo valve valve pocket (4) (11)。
5. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: the folder Specifically (15) are also equipped with position plate (14) above, and position plate (14) front end is welded with hard alloy layer.
6. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: the folder Hard alloy layer is welded in the medial launder that specifically (15) are contacted with lapping stick (12) above.
7. automatic grinding according to claim 1, detection servo valve valve pocket side window device, it is characterised in that: described turn Change the signal output end that circuit signal input connects controller by amplifier, the signal of conversion circuit signal output end output It is divided into two-way: signal feeding motor two all the way;Another way signal receives the biography of the LVDT at servo valve valve pocket lower end to motor one The signal of the displacement stroke of sensor feedback servo valve valve pocket.
CN201821957258.0U 2018-11-26 2018-11-26 Automatic grinding, detection servo valve valve pocket side window device Active CN209408209U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821957258.0U CN209408209U (en) 2018-11-26 2018-11-26 Automatic grinding, detection servo valve valve pocket side window device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821957258.0U CN209408209U (en) 2018-11-26 2018-11-26 Automatic grinding, detection servo valve valve pocket side window device

Publications (1)

Publication Number Publication Date
CN209408209U true CN209408209U (en) 2019-09-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821957258.0U Active CN209408209U (en) 2018-11-26 2018-11-26 Automatic grinding, detection servo valve valve pocket side window device

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109304668A (en) * 2018-11-26 2019-02-05 上海衡拓液压控制技术有限公司 Automatic grinding, detection servo valve valve pocket side window device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109304668A (en) * 2018-11-26 2019-02-05 上海衡拓液压控制技术有限公司 Automatic grinding, detection servo valve valve pocket side window device

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