CN209698841U - A kind of hydraulic system of micropore crush and grind lathe - Google Patents
A kind of hydraulic system of micropore crush and grind lathe Download PDFInfo
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- CN209698841U CN209698841U CN201920296420.7U CN201920296420U CN209698841U CN 209698841 U CN209698841 U CN 209698841U CN 201920296420 U CN201920296420 U CN 201920296420U CN 209698841 U CN209698841 U CN 209698841U
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- solenoid valve
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- electric jar
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Abstract
The utility model discloses a kind of hydraulic systems of micropore crush and grind lathe, including abrasive material bucket, suction system, filtration system and oil plant switching system；The suction system includes big servo electric jar, material sucting cylinder and solenoid valve VI；The piston rod top end of the big servo electric jar is fixedly connected with piston；The material sucting cylinder is fixedly connected on the top of big servo electric jar, and sealing element is equipped between material sucting cylinder and big servo electric jar；Back pressure system is additionally provided on pipeline between the solenoid valve III and abrasive material bucket, back pressure system includes small servo electric jar, back pressure cylinder and solenoid valve IV；The piston rod top end of the small servo electric jar is fixedly connected with piston；The back pressure cylinder is fixedly connected on the top of small servo electric jar, and sealing element is equipped between back pressure cylinder and big servo electric jar.The utility model uses servo electric jar as power device, to ensure that the stabilization of back pressure, improves the processing quality of micropore.
Description
Technical field
The utility model relates to hydraulic system technical field more particularly to a kind of hydraulic pressure systems of micropore crush and grind lathe
System.
Background technique
Micropore crush and grind lathe, exactly prepares abrasive material and hydraulic oil, then make to mix by hydraulic system by a certain percentage
Abrasive material in hydraulic oil forms abrasive flows and carries out crush and grind processing by blastopore to be processed, so that micropore reaches rule
Fixed port size and Hole Wall Roughness is widely used in the valve class product of machining high-precision.
In the hydraulic system of micropore crush and grind lathe, oil outlet needs to add a constant oil pressure when grinding micropore, i.e.,
Back pressure is provided for oil outlet, because only that ideal processing effect can be obtained under stable oil pressure.Conventional back pressure system
Power device often use cylinder, and by exhaust valve come constant pressure, precision is inadequate, pressure instability；Back pressure also
System uses oil pressure station as power device, and using High-precision overflow valve, electromagnetic proportional valve (including addition accumulator) pressure
Also it is not sufficiently stable, to affect the processing efficiency and quality of micropore.
Therefore, it is necessary to solve the above problems to invent a kind of new micropore crush and grind machine tool hydraulic system.
Utility model content
The purpose of this utility model is to provide a kind of hydraulic systems of micropore crush and grind lathe, select servo electric jar
As power device, to ensure that the stabilization of back pressure, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of hydraulic system of micropore crush and grind lathe, including abrasive material bucket, suction system, filtration system and oil plant switching
System；The suction system includes big servo electric jar, material sucting cylinder and solenoid valve VI；The piston rod top of the big servo electric jar
End is fixedly connected with piston；The material sucting cylinder is fixedly connected on the top of big servo electric jar, and material sucting cylinder and big servo-electric
Sealing element is equipped between cylinder, the piston of big servo electric jar end is slidably connected to the inner wall of material sucting cylinder；Solenoid valve VI passes through pipe
The connection of the inner cavity of road and material sucting cylinder, the abrasive material bucket are connect by pipeline with solenoid valve VI；The filtration system includes strainer valve
Block and filter, filter are fixedly connected in filtering valve block, and are filtered valve block and connect by pipeline with solenoid valve VI；The oil
Expect that switching system includes solenoid valve I, solenoid valve II, solenoid valve III, solenoid valve V and transition valve block；The solenoid valve I, solenoid valve
II is connect by pipeline with filtering valve block respectively；The transition valve block is equipped with U, V, W, X, Y five and imports and exports, and wherein U mouthfuls and V
Mouth communicates, and W mouthfuls, X mouthfuls and Y mouthfuls communicate, and solenoid valve I is connect by pipeline with U mouthfuls, and solenoid valve II is connect by pipeline with W mouthfuls, electricity
Magnet valve III is connect with X mouthfuls, abrasive material bucket respectively by pipeline；Y mouth in transition valve block, V mouthfuls pass through pipeline jockey, electricity respectively
One end of magnet valve V is connect by pipeline with fixture, and the other end is connect by pipeline with abrasive material bucket；The solenoid valve III and abrasive material
It is additionally provided with back pressure system on pipeline between bucket, back pressure system includes small servo electric jar, back pressure cylinder and solenoid valve IV；It is described small
The piston rod top end of servo electric jar is fixedly connected with piston；The back pressure cylinder is fixedly connected on the top of small servo electric jar,
And sealing element is equipped between back pressure cylinder and big servo electric jar, the piston of small servo electric jar end is slidably connected to back pressure cylinder
Inner wall；The solenoid valve IV and solenoid valve III are connect by pipeline with the inner cavity of back pressure cylinder, and solenoid valve IV passes through pipeline
It is connect with abrasive material bucket.
Further improvement of the utility model scheme be further include pressure measuring unit, the pressure measuring unit include be fixedly connected
On solenoid valve VI first pressure sensor, be fixedly connected on filtering valve block on second pressure sensor and be fixedly connected on
Third pressure sensor on back pressure cylinder.
Further improvement of the utility model scheme is that the bottom of the abrasive material bucket is fixedly connected with threeway I, threeway I
Both ends are fixedly connected with ball valve I and ball valve II, and one end of ball valve II is equipped with threeway II, another interface of threeway II passes through pipe
Road is connect with solenoid valve VI.
Further improvement of the utility model scheme be further include circulating pump, the inlet port and outlet port difference of circulating pump
It is connect by pipeline with abrasive material bucket.
Further improvement of the utility model scheme be further include blender, the motor of the blender is fixedly connected on
On abrasive material bucket, the agitating paddle for being fixed on motor output end extend into the inside of abrasive material bucket.
Further improvement of the utility model scheme is that the circulating pump uses membrane pump.
Further improvement of the utility model scheme is that the pipeline is all made of hydraulic steel pipe.
The utility model has the beneficial effects that
One, the back pressure system of the utility model selects servo electric jar as power device, to ensure that the steady of back pressure
It is fixed, improve the processing quality of micropore.
Two, the hydraulic system of the utility model can process two micropores, when processing diplopore workpiece in single device simultaneously
Replacement multiple devices are not needed, working efficiency is greatly improved.
Three, the abrasive material bucket bottom of the utility model is equipped with blow-off valve, facilitates the liquid abrasive material in abrasive material bucket to be discharged, to reach
To the purpose of periodic cleaning abrasive material bucket.
Four, when the utility model at work, circulating pump can realize the uninterrupted circulation of liquid abrasive material, to prevent liquid from grinding
Particle in material is sunk to the bottom.
Five, on one's own time, the liquid abrasive material in the continuous Ball-stirring mill charging basket of blender prevents liquid to the utility model
Particle in abrasive material is sunk to the bottom.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of the common-rail injector valve pocket in the utility model embodiment 1.
Fig. 3 is the clamp structure schematic diagram in the utility model embodiment 1.
Fig. 4 is the oil circuit connection figure of the utility model embodiment 1.
Fig. 5 is the hydraulic schematic diagram of the utility model embodiment 1.
In figure: 1- abrasive material bucket, the big servo electric jar of 2-, 3- material sucting cylinder, 4- solenoid valve VI, 5- filtering valve block, 6- filter,
7- solenoid valve I, 8- solenoid valve II, 9- solenoid valve III, 10- solenoid valve V, 11- transition valve block, 12- fixture, the small servo-electric of 13-
Cylinder, 14- back pressure cylinder, 15- solenoid valve IV, 16- first pressure sensor, 17- second pressure sensor, 18- third pressure sensing
Device, 19- threeway I, 20- ball valve I, 21- ball valve II, 22- threeway II, 23- circulating pump, 24- blender, 25- valve pocket, 28- mesoporous,
The hole 29-A, the hole 30-Z, 31- pressure head, 32- pedestal, 33- fixture block, 34- interface a, 35- interface b, 36- groove C, 37- groove D, 38-
Oil hole, the upper oil hole of 40- interface c, 41- under material placing hole, 39-.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that following specific embodiments are only
For illustrating the utility model rather than limitation the scope of the utility model, after having read the utility model, this field
Technical staff falls within the application range as defined in the appended claims to the modification of the various equivalent forms of utility model.
Embodiment 1: as shown in figures 1,4 and 5, a kind of hydraulic system of micropore crush and grind lathe, including abrasive material bucket 1, suction
System, filtration system and oil plant switching system；The suction system includes big servo electric jar 2, material sucting cylinder 3 and solenoid valve VI 4；
The piston rod top end of the big servo electric jar 2 is fixedly connected with piston；The material sucting cylinder 3 is fixedly connected on big servo electric jar
2 top, and sealing element is equipped between material sucting cylinder 3 and big servo electric jar 2, the piston of big 2 end of servo electric jar, which slides, to be connected
It is connected to the inner wall of material sucting cylinder 3；Solenoid valve VI 4 connect by pipeline with the inner cavity of material sucting cylinder 3, the abrasive material bucket 1 pass through pipeline and
Solenoid valve VI 4 connects；The filtration system includes filtering valve block 5 and filter 6, and filter 6 is fixedly connected on filtering valve block 5
On, and filter valve block 5 and connect by pipeline with solenoid valve VI 4；The oil plant switching system include solenoid valve I 7, solenoid valve II 8,
Solenoid valve III 9, solenoid valve V 10 and transition valve block 11；The solenoid valve I 7, solenoid valve II 8 pass through pipeline and filtering valve block respectively
5 connections；The transition valve block 11 is equipped with U, V, W, X, Y five inlet and outlet, wherein communicates with V mouthfuls for U mouthfuls, W mouthfuls, X mouthfuls and Y mouthfuls phases
Logical, solenoid valve I 7 is connect by pipeline with U mouthfuls, and solenoid valve II 8 is connect by pipeline with W mouthfuls, and solenoid valve III 9 is distinguished by pipeline
It is connect with X mouthfuls, abrasive material bucket 1；Y mouth in transition valve block 11, V mouthfuls respectively by pipeline jockey 12, the one of solenoid valve V 10
End is connect by pipeline with fixture 12, and the other end is connect by pipeline with abrasive material bucket 1；Between the solenoid valve III 9 and abrasive material bucket 1
Pipeline on be additionally provided with back pressure system, back pressure system includes small servo electric jar 13, back pressure cylinder 14 and solenoid valve IV 15；It is described small
The piston rod top end of servo electric jar 13 is fixedly connected with piston；The back pressure cylinder 14 is fixedly connected on small servo electric jar 13
Top, and it is equipped with sealing element between back pressure cylinder 14 and big servo electric jar 2, the piston of small 13 end of servo electric jar is slidably connected
In the inner wall of back pressure cylinder 14；The solenoid valve IV 15 and solenoid valve III 9 are connect by pipeline with the inner cavity of back pressure cylinder 14, and
Solenoid valve IV 15 is connect by pipeline with abrasive material bucket 1.
It further include pressure measuring unit, the pressure measuring unit includes the first pressure sensor being fixedly connected on solenoid valve VI 4
16, the second pressure sensor 17 being fixedly connected in filtering valve block 5 and the third pressure being fixedly connected on back pressure cylinder 14 pass
Sensor 18.
The bottom of the abrasive material bucket 1 is fixedly connected with threeway I 19, and the both ends of threeway I 19 are fixedly connected with ball valve I 20 and ball
Valve II 21, one end of ball valve II 21 are equipped with threeway II 22, another interface of threeway II 22 is connected by pipeline and solenoid valve VI 4
It connects, wherein ball valve I 20 is for being discharged the liquid abrasive material in abrasive material bucket 1 periodically with simultaneously cleaning abrasives bucket 1.
It further include circulating pump 23, the inlet port and outlet port of circulating pump 23 pass through pipeline respectively and connect with abrasive material bucket 1.
It further include blender 24, the motor of the blender 24 is fixedly connected on abrasive material bucket 1, is fixed on motor output end
Agitating paddle extend into the inside of abrasive material bucket 1；The circulating pump 23 uses membrane pump；The pipeline is all made of hydraulic steel pipe.
The present embodiment illustrates the working principle of the hydraulic system by taking the valve pocket 25 of common-rail injector as an example: common-rail injector is
Critical component in diesel engine common rail system, and common-rail injector needs the key technology solved to be as controlled accurate control
Fuel injection amount makes the spray characteristics of common-rail injector meet the requirement of combustion system of diesel engine.During this, co-rail oil injection
The important role of 25 performer of valve pocket in device.
As shown in Fig. 2, its whole longitudinal cross-section of valve pocket 25 is in " T " shape, 25 bottom end of valve pocket is equipped with mesoporous 28, and side is set
There is the hole Z 29 penetrated through with mesoporous 28, the hole A 30 of perforation mesoporous 28 is equipped at 25 upper end center of valve pocket.The wherein hole A 30 and the hole Z 29
It is micropore, and the required precision in the hole A 30 and the hole Z 29 is very high, when processing the two micropores, first passes through electric spark-erosion perforation machine and beat
Two blastopores out, not only size is not up to standard for two blastopores that electric spark is got, but also its inner wall is jagged and corner angle, needs to pass through
Micropore crush and grind lathe carries out attrition process to the two blastopores.
As shown in figure 3, fixture 12 includes pressure head 31, pedestal 32 and fixture block 33, the side of pedestal 32 is equipped with interface a34 and connects
Mouthful b35, interface a34 and interface b35 by pipeline respectively in transition valve block 11 Y mouth, V mouthfuls connect, be equipped with above pedestal 32
Groove C36, the bottom end groove C36 are penetrated through equipped with groove D37, interface a34 and groove D37；Fixture block is fixedly connected in groove C36
33, the material placing hole 38 for placing valve pocket 25 is offered on fixture block 33, and the lower oil of perforation is equipped between material placing hole 38 and interface b35
Road hole 39,33 outer wall of fixture block of lower about 39 oil hole and the inner wall of groove C36 set that there are two O-ring seals；31 side of pressure head
Equipped with interface c40, one end of solenoid valve V 10 is connect by pipeline with interface c40, and 31 lower end surface of pressure head offers and interface c40
The upper oil hole 41 of perforation, and 31 lower end surface of pressure head is equipped with O-ring seal, under pressure head 31 is driven by actuator (such as cylinder)
Movement is so that 31 lower end surface of pressure head is contacted with the valve pocket 25 on fixture block 33.
In the present embodiment, solenoid valve I 7, solenoid valve II 8, solenoid valve III 9, solenoid valve V 10, solenoid valve IV 15 are two
Two three-way electromagnetic valves of position, model VMK-H150P NC 200B 540450；Solenoid valve VI 4 is two-bit triplet solenoid valve, type
Number be VMK-H150R NC 200B 536770；The model AH190-S350-T-R20-M1-C2-P2 of big servo electric jar 2；
The model AH95-S200-T-R10-M1-C2-P2 of small servo electric jar 13；6 model ZU-H10 × 100PB of filter；The
The model of one pressure sensor 16, second pressure sensor 17 and third pressure sensor 18 is M5156-000002-
250BG；The model 6IK200GH-20K of 24 motor of blender；The model QBY-15 of membrane pump；The size of material sucting cylinder 3 is Φ
100(internal diameter) × 550, the size of back pressure cylinder 14 is Φ 60(internal diameter) × 400.
The flow-rate ratio in the size requirement 340-350ml/min in the hole A 30 of valve pocket 25, the hole A 30 and the hole Z 29 is 1.04-1.06；
The valve pocket 25 is placed in material placing hole 38, guarantees that the hole Z 29 is concordant with lower oil hole 39, the driving that pressure head 31 is driven moving part moves down,
Guarantee that pressure head 31 compresses valve pocket 25,31 lower end surface of pressure head is equipped with O-ring seal outer diameter and is less than the outer of 25 top of valve pocket
Diameter size, and the internal diameter of the O-ring seal is greater than the outer diameter in the upper conical hole of valve pocket 25, to prevent pressure head 31 and valve
25 joint surface pressure releases are covered, valve pocket 25 and the joint surface of fixture block 33 carry out face sealing to the pressure that valve pocket 25 applies by pressure head 31,
To prevent the joint surface pressure release of valve pocket 25 Yu fixture block 33.
Before processing, machine tool electric, gas etc. all under normal circumstances, solenoid valve VI 4 it is electric, the motor of big servo electric jar 2 is anti-
Turn, makes to generate negative pressure in material sucting cylinder 3, the liquid abrasive material in abrasive material bucket 1 is sucked；When the piston of material sucting cylinder 3 is moved to lower dead center
When, the motor of big servo electric jar 2 stops working, and suction is completed, and solenoid valve VI 4 powers off；Solenoid valve I 7, solenoid valve II 8, electromagnetism
Valve V 10 obtains electric opening；The motor rotating forward of big servo electric jar 2 quickly propels piston, and input pressure rapidly rises to the left side 11MPa
The right side, first pressure sensor 16, second pressure sensor 17 give the motor signal of big servo electric jar 2, then big servo-electric
The revolving speed (namely according to the traffic requirement of setting) that the motor of cylinder 2 is kept constant processes the hole A 30；As hole machined becomes
Greatly, when pressure drops to the 10MPa of setting, the hole A 30 is completed the process；Solenoid valve II 8, solenoid valve V 10 power off, solenoid valve I 7, electricity
Magnet valve III 9 obtains electric opening, processes to the hole Z 29；The motor rotating forward of big servo electric jar 2 quickly propels piston, liquid abrasive material
Pressure rapidly rises to 11MPa or so, and the revolving speed that then motor is kept constant (namely passes through the actual flow and stream in the hole A 30
Flow of the amount than calculating the hole Z 29 in real time) hole Z 29 is processed；25 mesoporous of oil outlet, that is, valve pocket, 28 oil pressure in the hole Z 29 simultaneously
Meeting rapid increase, the motor reversal of small servo electric jar 13, which concedes volume, reduces pressure；By third pressure sensor 18 to small
The motor signal of servo electric jar 13 guarantees 28 oil pressure cntrol of mesoporous in stable 6MPa(error 0.1MPa)；When aperture becomes larger
Input pressure stops processing when being reduced to the 10MPa of setting, solenoid valve I 7, solenoid valve III 9 power off, and valve is closed；Solenoid valve IV 15 dozens
It opens, abrasive material is shifted onto abrasive material bucket 1 in the positive handle back pressure cylinder 14 of the motor of small servo electric jar 13, when the piston in small cylinder is moved to
When top dead centre, the motor of small servo electric jar 13 stops working, and solenoid valve IV 15 powers off, process finishing.
Claims (7)
1. a kind of hydraulic system of micropore crush and grind lathe, it is characterised in that: including abrasive material bucket (1), suction system, filtering system
System and oil plant switching system；The suction system includes big servo electric jar (2), material sucting cylinder (3) and solenoid valve VI (4)；It is described
The piston rod top end of big servo electric jar (2) is fixedly connected with piston；The material sucting cylinder (3) is fixedly connected on big servo electric jar
(2) top, and sealing element, the work of big servo electric jar (2) end are equipped between material sucting cylinder (3) and big servo electric jar (2)
Plug is slidably connected to the inner wall of material sucting cylinder (3)；Solenoid valve VI (4) is connect by pipeline with the inner cavity of material sucting cylinder (3), the abrasive material
Bucket (1) is connect by pipeline with solenoid valve VI (4)；The filtration system includes filtering valve block (5) and filter (6), filter
(6) it is fixedly connected in filtering valve block (5), and filters valve block (5) and connect by pipeline with solenoid valve VI (4)；The oil plant is cut
The system of changing includes solenoid valve I (7), solenoid valve II (8), solenoid valve III (9), solenoid valve V (10) and transition valve block (11)；It is described
Solenoid valve I (7), solenoid valve II (8) are connect by pipeline with filtering valve block (5) respectively；The transition valve block (11) be equipped with U,
V, W, X, Y five inlet and outlet, wherein communicate for U mouthfuls with V mouthfuls, and W mouthfuls, X mouthfuls and Y mouthfuls communicate, and solenoid valve I (7) passes through pipeline and U mouthfuls of companies
It connects, solenoid valve II (8) is connect by pipeline with W mouthfuls, and solenoid valve III (9) is connect with X mouthfuls, abrasive material bucket (1) respectively by pipeline；It crosses
Cross Y mouth on valve block (11), V mouthfuls respectively by pipeline jockey (12), one end of solenoid valve V (10) passes through pipeline and folder
Has (12) connection, the other end is connect by pipeline with abrasive material bucket (1)；Pipeline between the solenoid valve III (9) and abrasive material bucket (1)
On be additionally provided with back pressure system, back pressure system includes small servo electric jar (13), back pressure cylinder (14) and solenoid valve IV (15)；It is described small
The piston rod top end of servo electric jar (13) is fixedly connected with piston；The back pressure cylinder (14) is fixedly connected on small servo electric jar
(13) top, and sealing element is equipped between back pressure cylinder (14) and big servo electric jar (2), small servo electric jar (13) end
Piston is slidably connected to the inner wall of back pressure cylinder (14)；The solenoid valve IV (15) and solenoid valve III (9) pass through pipeline and back pressure
The inner cavity of cylinder (14) connects, and solenoid valve IV (15) is connect by pipeline with abrasive material bucket (1).
2. a kind of hydraulic system of micropore crush and grind lathe as described in claim 1, it is characterised in that: further include surveying press fitting
It sets, the pressure measuring unit includes the first pressure sensor (16) being fixedly connected on solenoid valve VI (4), is fixedly connected on filtering
Second pressure sensor (17) in valve block (5) and the third pressure sensor (18) being fixedly connected on back pressure cylinder (14).
3. a kind of hydraulic system of micropore crush and grind lathe as claimed in claim 2, it is characterised in that: the abrasive material bucket
(1) bottom is fixedly connected with threeway I (19), and the both ends of threeway I (19) are fixedly connected with ball valve I (20) and ball valve II (21),
One end of ball valve II (21) is equipped with threeway II (22), another interface of threeway II (22) passes through pipeline and solenoid valve VI (4)
Connection.
4. a kind of hydraulic system of micropore crush and grind lathe as claimed in claim 3, it is characterised in that: further include circulating pump
(23), the inlet port and outlet port of circulating pump (23) pass through pipeline respectively and connect with abrasive material bucket (1).
5. a kind of hydraulic system of micropore crush and grind lathe as claimed in claim 4, it is characterised in that: further include blender
(24), the motor of the blender (24) is fixedly connected on abrasive material bucket (1), and the agitating paddle for being fixed on motor output end is extend into
The inside of abrasive material bucket (1).
6. a kind of hydraulic system of micropore crush and grind lathe as claimed in claim 4, it is characterised in that: the circulating pump
(23) membrane pump is used.
7. a kind of hydraulic system of micropore crush and grind lathe as described in any one of claim 2-6, it is characterised in that: institute
It states pipeline and is all made of hydraulic steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296420.7U CN209698841U (en) | 2019-03-09 | 2019-03-09 | A kind of hydraulic system of micropore crush and grind lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296420.7U CN209698841U (en) | 2019-03-09 | 2019-03-09 | A kind of hydraulic system of micropore crush and grind lathe |
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| Publication Number | Publication Date |
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| CN209698841U true CN209698841U (en) | 2019-11-29 |
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ID=68643616
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571456A (en) * | 2020-05-26 | 2020-08-25 | 北京工商大学 | Micro abrasive gas jet single-point direct writing processing system and use method thereof |
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2019
- 2019-03-09 CN CN201920296420.7U patent/CN209698841U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571456A (en) * | 2020-05-26 | 2020-08-25 | 北京工商大学 | Micro abrasive gas jet single-point direct writing processing system and use method thereof |
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