CN207647900U - A kind of band feedback servo hydraulic drive mechanism - Google Patents
A kind of band feedback servo hydraulic drive mechanism Download PDFInfo
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- CN207647900U CN207647900U CN201721790533.XU CN201721790533U CN207647900U CN 207647900 U CN207647900 U CN 207647900U CN 201721790533 U CN201721790533 U CN 201721790533U CN 207647900 U CN207647900 U CN 207647900U
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- piston rod
- hydraulic cylinder
- cylinder bucket
- displacement sensor
- hydraulic
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Abstract
A kind of band feedback servo hydraulic drive mechanism, by hydraulic cylinder bucket（1）, piston rod（2）, displacement sensor（3）And servo valve（4）Composition, the hydraulic cylinder bucket（1）Both ends are equipped with into, oil return opening, into, oil return hydraulic fluid port and servo valve（4）Connection, it is characterised in that：The hydraulic cylinder bucket（1）Inside is equipped with piston rod（2）, piston rod（2）Along hydraulic cylinder bucket（1）Inner wall work advances, retreats linear motion, displacement sensor（3）One end is fixed on hydraulic cylinder bucket（1）On, the other end is fixed on piston rod（2）On, piston rod（2）It is mobile, it is fixed on piston rod（2）On displacement sensor（3）Mobile terminal can also move, and feed back to control system, realize to piston rod（2）The monitoring of movement position.The utility model is monitored piston rod displacement by displacement sensor, realizes closed-loop control, reaches very high positioning accuracy and repetitive positioning accuracy.
Description
Technical field
The invention belongs to field of machining, relate in particular to that a kind of aluminum-alloy wheel extrusion stretching molding machine is special to be watched
Take hydraulic drive mechanism.
Background technology
Aluminum-alloy wheel is mostly to cast wheel currently on the market, and casting wheel is because technique is limited to, to ensure to pacify
Quan Xing, the comparison that can only design wheel wall thickness is thick, and to ensure that it is safe and reliable that mechanical strength achievees the purpose that, product is thicker, production
The weight of product causes the oil consumption of automobile higher just than heavier.Gradually spoke is cast out currently on the market after coming to inner rim portion
It carries out extrusion stretching molding or forges wheel blanks to carry out extrusion stretching molding production aluminum-alloy wheel to wheel rim, to reach
To ensure safety under the premise of loss of weight effect.This is to spinning wheel mechanism and vehicle wheel in the molding equipment of wheel rim extrusion stretching
Rim applies up to 10 tons or more of extrusion stretching power, and wheel rim forms complex-curved, different shaped by certain straight line and circular arc
The wheel rim shape of number aluminum-alloy wheel is also different, and spinning wheel will be moved according to curve form, be all per task according to
Fixed curve is fed, it is desirable that has very high positioning accuracy and repetitive positioning accuracy, so the driving of driving spinning wheel movement
Mechanism must be the structure of servo PLC technology.
Invention content
The present invention provides a kind of servo-hydraulic driving mechanism of band feedback, is equipped with into, oil return opening at 1 both ends of hydraulic cylinder bucket
It is connect with servo valve 4,3 one end of displacement sensor is fixed on hydraulic cylinder bucket 1, and the other end is fixed on piston rod 2, can be according to being
System instruction, which is realized, advances, retreats work, and by displacement sensor, is monitored to displacement, realizes closed-loop control, reaches non-
Often high positioning accuracy and repetitive positioning accuracy.
The technical solution adopted by the present invention is as follows：A kind of band feedback servo hydraulic drive mechanism, by hydraulic cylinder bucket, piston
Bar, displacement sensor and servo valve composition, the hydraulic cylinder bucket both ends are equipped with into, oil return opening, into, oil return hydraulic fluid port and servo valve
Connection, it is characterised in that：Piston rod is installed inside the hydraulic cylinder bucket, piston rod advances along hydraulic cylinder bucket inner wall work,
Linear motion is retreated, displacement sensor one end is fixed on hydraulic cylinder bucket, and the other end is fixed on the piston rod, piston rod movement,
Fixed displacement sensor mobile terminal on the piston rod can also move, and feed back to control system, realize to piston rod movement
The monitoring of position.
The servo valve is equipped with hydraulic cylinder bucket both ends into the corresponding oilhole of, oil return opening, and servo valve control flows into
The flow of hydraulic oil in hydraulic cylinder bucket controls the displacement and movement speed of piston rod, realizes the positioning accuracy of driving mechanism.
The present invention is monitored piston rod displacement by displacement sensor, realizes closed-loop control, reaches very high
Positioning accuracy and repetitive positioning accuracy.The distinctive absorption impact capacity of hydraulic system can effectively absorb aluminum-alloy wheel extruding
Impact force during stretch process, to improve the presentation quality of product and the service life of spinning wheel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the control principle drawing of servo valve 4 and oil inlet and oil return mouth.
Specific implementation mode
Known by Fig. 1, Fig. 2, a kind of servo-hydraulic driving mechanism of band feedback, by hydraulic cylinder bucket 1, piston rod 2, displacement sensing
Device 3 and servo valve 4 form, wherein hydraulic cylinder bucket 1, and both ends have into, oil return opening, are connect into, oil return hydraulic fluid port with servo valve 4, hydraulic pressure
Piston rod 2 is installed in 1 inside of cylinder bucket, and piston rod 2 can advance along 1 inner wall of cylinder bucket, retreat straight line, and 3 one end of displacement sensor is fixed
On cylinder bucket 1, the other end is fixed on piston rod 2, when piston rod 2 moves, the displacement sensor 3 that is fixed on piston rod 2
Mobile terminal can also move.Control system is fed back to, to realize the monitoring to piston motion position.The servo valve 4
It is equipped with 1 both ends of hydraulic cylinder bucket into the corresponding oilhole of, oil return opening, the control of servo valve 4 flows into hydraulic oil in hydraulic cylinder bucket 1
Flow controls the displacement and movement speed of piston rod 2, realizes the positioning accuracy of driving mechanism.
Claims (2)
1. a kind of band feedback servo hydraulic drive mechanism, by hydraulic cylinder bucket（1）, piston rod（2）, displacement sensor（3）And servo
Valve（4）Composition, the hydraulic cylinder bucket（1）Both ends are equipped with into, oil return opening, into, oil return hydraulic fluid port and servo valve（4）Connection, it is special
Sign is：The hydraulic cylinder bucket（1）Inside is equipped with piston rod（2）, piston rod（2）Along hydraulic cylinder bucket（1）Before inner wall is made
Into, retreat linear motion, displacement sensor（3）One end is fixed on hydraulic cylinder bucket（1）On, the other end is fixed on piston rod（2）On,
Piston rod（2）It is mobile, it is fixed on piston rod（2）On displacement sensor（3）Mobile terminal can also move, and feed back to control system
System is realized to piston rod（2）The monitoring of movement position.
2. a kind of band feedback servo hydraulic drive mechanism according to claim 1, servo valve（4）It is equipped with and hydraulic cylinder bucket
（1）Both ends are into, the corresponding oilhole of oil return opening, servo valve（4）Control flows into hydraulic cylinder bucket（1）The flow of interior hydraulic oil, control
Piston rod（2）Displacement and movement speed, realize the positioning accuracy of driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790533.XU CN207647900U (en) | 2017-12-20 | 2017-12-20 | A kind of band feedback servo hydraulic drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721790533.XU CN207647900U (en) | 2017-12-20 | 2017-12-20 | A kind of band feedback servo hydraulic drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207647900U true CN207647900U (en) | 2018-07-24 |
Family
ID=62877772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721790533.XU Active CN207647900U (en) | 2017-12-20 | 2017-12-20 | A kind of band feedback servo hydraulic drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207647900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917122A (en) * | 2017-12-20 | 2018-04-17 | 江苏天宏自动化科技有限公司 | A kind of band feedback servo hydraulic drive mechanism |
-
2017
- 2017-12-20 CN CN201721790533.XU patent/CN207647900U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917122A (en) * | 2017-12-20 | 2018-04-17 | 江苏天宏自动化科技有限公司 | A kind of band feedback servo hydraulic drive mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212325 douzhuang Industrial Park, Dianxian Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Tianhong Intelligent Equipment Co.,Ltd. Address before: 212325 douzhuang Industrial Park, Dianxian Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU TIANHONG MACHINERY INDUSTRIAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |