CN107882811A - A kind of electric servo high precision oil cylinder - Google Patents
A kind of electric servo high precision oil cylinder Download PDFInfo
- Publication number
- CN107882811A CN107882811A CN201711487356.2A CN201711487356A CN107882811A CN 107882811 A CN107882811 A CN 107882811A CN 201711487356 A CN201711487356 A CN 201711487356A CN 107882811 A CN107882811 A CN 107882811A
- Authority
- CN
- China
- Prior art keywords
- cylinder barrel
- swingle
- blind hole
- wall
- high precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to a kind of oil cylinder, is specifically used for the electric servo high precision oil cylinder for realizing high precision pressure fitting positioning.It includes cylinder barrel, and the oral area of cylinder barrel has end cap, has centre bore on end cap, has oil inlet in the cylinder barrel side wall of cylinder barrel bottom, the oil-out in the cylinder barrel side wall of cylinder barrel oral area.Piston rod is arranged concentrically in cylinder barrel, one end of piston rod extends through the centre bore of end cap, has piston on piston rod one end in cylinder barrel.There is blind hole on the end face of the piston rod one end being characterized in cylinder barrel, there is swingle in the blind hole, there is gap between the outer wall of swingle and the hole wall of blind hole, swingle one end is extended through the bottom of cylinder barrel, and link gear is connected with the overhanging end of swingle.There is passive nut on that section of swingle in blind hole.The oral area of blind hole has stress set.The price of the oil cylinder is relatively low, realizes that the cost of high precision pressure fitting positioning is relatively low.
Description
Technical field
The present invention relates to a kind of oil cylinder, is specifically used for the electric servo high precision oil cylinder for realizing high precision pressure fitting positioning.
Background technology
At present, it is pressed in industry and all realizes that high precision pressure fitting is determined using electric servo cylinder or hydraulic servo oil cylinder system
Position.Electric servo cylinder mainly includes the parts such as servo electric cylinders, servo deceleration device and servo controller.Hydraulic servo oil cylinder system master
To include the parts such as servo-cylinder, displacement transducer, servo proportion and operating controller.However, above-mentioned composition electrical servo
The part price of cylinder and hydraulic servo oil cylinder is higher, causes the price of electric servo cylinder and hydraulic servo oil cylinder higher, causes reality
The cost of existing high precision pressure fitting positioning is higher.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of electric servo high precision oil cylinder, the price of the oil cylinder is relatively low, real
The cost of existing high precision pressure fitting positioning is relatively low.
To solve the above problems, provide following technical scheme：
A kind of electric servo high precision oil cylinder of the present invention includes cylinder barrel, and the oral area of cylinder barrel has end cap, there is centre bore on end cap, close
There is the first hydraulic fluid port in the cylinder barrel side wall of cylinder barrel bottom, the second hydraulic fluid port in the cylinder barrel side wall of cylinder barrel oral area.It is same in the cylinder barrel
The heart is provided with piston rod, and one end of piston rod extends through the centre bore of end cap, and in the outer wall and end cap of piston rod
In shape cooperation is slidingly sealed between heart hole, piston, piston outer wall and cylinder barrel are connected with one heart on piston rod one end in cylinder barrel
Inwall between in sealing slide shape coordinate.It has been arranged concentrically on the end face of the piston rod one end being characterized in cylinder barrel blind
Hole, swingle has been arranged concentrically in the blind hole, has had gap between the outer wall of swingle and the hole wall of blind hole, swingle one end passes through cylinder
The bottom of cylinder extends, and rotates shape in sealing between the outer wall of swingle and the bottom of cylinder barrel and coordinate, the overhanging end of swingle
On be connected with link gear.External screw thread is provided with the outer wall of that section of swingle in blind hole, and is had on this section of swingle
Passive nut, coordinate between passive nut and blind hole in the circumferentially fixed, shape that slides axially.The oral area of the blind hole has stress set, by
Power is covered with blind hole oral area in being fixedly connected, and is slided between inwall and the outer wall of swingle that stress covers in sealing, is rotated shape cooperation.
Wherein, limited cover is fixed with swingle one end in blind hole, the external diameter of limited cover is more than passive nut
Internal diameter
The link gear includes the drive ring being concentrically mounted on the overhanging end of swingle, and whirlpool is fixed with the outer wall of drive ring
Wheel, turbine are connected with worm screw.
Similar shape is connected with annular boss in cylinder barrel and on the swingle of neighbouring cylinder barrel bottom.
There is axial slide on the hole wall of the blind hole, have stop pin in the axial slide, be between stop pin and axial slide
Slide shape to coordinate, the side of stop pin is connected with passive nut so that be in passively circumferentially fixed between nut and blind hole, slide axially
Shape coordinates.
It is provided with guide sleeve in the centre bore of the end cap, in being tightly connected between the inwall of guide sleeve and end cap central bore,
It is in be slidingly sealed shape cooperation between the outer wall of the inwall of guide sleeve and the piston rod.
Above scheme is taken, there is advantages below：
, should due to being arranged concentrically blind hole on the end face of piston rod one end in the cylinder barrel of the electric servo high precision oil cylinder of the present invention
Swingle has been arranged concentrically in blind hole, has there is gap between the outer wall of swingle and the hole wall of blind hole, swingle one end passes through cylinder barrel
Bottom extends, and rotates shape in sealing between the outer wall of swingle and the bottom of cylinder barrel and coordinate, that section rotation in blind hole
External screw thread is provided with the outer wall of bull stick, and has passive nut on this section of swingle, in circumferentially fixed between passive nut and blind hole,
The shape that slides axially coordinates, and the oral area of blind hole has stress set, and stress set is in be fixedly connected with blind hole oral area, the inwall of stress set and rotation
Slided between the outer wall of bull stick in sealing, rotate shape cooperation.In use, the position of passive nut is adjusted using swingle, can be accurate
The exsertile length of piston rod is determined, so as to realize that high precision pressure fitting positions.With background technology electric servo cylinder and hydraulic servo
Cylinder system is compared, simple in construction, and price is low, so as to greatly reduce the cost for realizing high precision pressure fitting positioning.
Brief description of the drawings
Fig. 1 is the structural representation of the electric servo high precision oil cylinder of the present invention；
Fig. 2 is Fig. 1 A portions enlarged drawing；
Fig. 3 is the structural representation of the passive nut of the electric servo high precision oil cylinder of the present invention in a particular state.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, Figure 2 and Figure 3, a kind of electric servo high precision oil cylinder of the invention includes cylinder barrel 9, the oral area of cylinder barrel 9
There is end cap 12, have centre bore on end cap 12, have the first hydraulic fluid port 14 in the side wall of cylinder barrel 9 of the bottom of cylinder barrel 9, close to 9 mouthfuls of cylinder barrel
Second hydraulic fluid port 13 in the side wall of cylinder barrel 9 in portion.Piston rod 17, one end through end of piston rod 17 have been arranged concentrically in the cylinder barrel 9
The centre bore of lid 12 extends, and is located between the centre bore of the outer wall of piston rod 17 and end cap 12 in shape cooperation is slidingly sealed
It is connected with piston 6 on one end of piston rod 17 in cylinder barrel 9 with one heart, slides shape in sealing between the inwall of the outer wall of piston 6 and cylinder barrel 9 and match somebody with somebody
Close.Blind hole 8 has been arranged concentrically on the end face of one end of piston rod 17 in cylinder barrel 9, swingle has been arranged concentrically in the blind hole 8
7, there is gap between the outer wall of swingle 7 and the hole wall of blind hole 8, the one end of swingle 7 extends through the bottom of cylinder barrel 9, and revolves
Shape is rotated in sealing to coordinate, link gear is connected with the overhanging end of swingle 7 between the outer wall of bull stick 7 and the bottom of cylinder barrel 9.Position
In being provided with external screw thread on the outer wall of that section of swingle 7 in blind hole 8, and there are passive nut 10, passive spiral shell on this section of swingle 7
Coordinate between mother 10 and blind hole 8 in the circumferentially fixed, shape that slides axially.The oral area of the blind hole 8 has stress to cover 5, and stress covers 5 and blind hole
In being fixedly connected, stress covers to be slided, rotates shape cooperation 8 oral areas between 5 inwall and the outer wall of swingle 7 in sealing.
Prevent passive nut 10 from coming off, limited cover 11, limited cover 11 are fixed with one end of swingle 7 in blind hole 8
External diameter be more than passive nut 10 internal diameter
The link gear includes the drive ring 3 being concentrically mounted on the overhanging end of swingle 7, is fixed on the outer wall of drive ring 3
There is turbine 1, turbine 1 is connected with worm screw 2.
Similar shape is connected with annular boss 4 in cylinder barrel 9 and on the swingle 7 of the neighbouring bottom of cylinder barrel 9.
There is axial slide 16 on the hole wall of the blind hole 8, there is stop pin 15, stop pin 15 and axial direction in the axial slide 16
In shape cooperation is slided between chute 16, the side of stop pin 15 is connected with passive nut 10 so that is between nut 10 and blind hole 8 passively
Circumferentially fixed, the shape that slides axially coordinates.
Guide sleeve 18 is provided with the centre bore of the end cap 12, in close between the inwall of guide sleeve 18 and the centre bore of end cap 12
It is in be slidingly sealed shape cooperation between the outer wall of envelope connection, the inwall of guide sleeve 18 and the piston rod 17.
In use, driving worm screw 2 drives turbine 1, drive ring 3 and swingle 7 to rotate to adjust the position of passive nut 10,
When the position where passive nut 10 is moved to the stroke distances of needs, stop driving worm screw 2, as shown in Fig. 2 this
When, the extension elongation of piston rod 17 covers 5 distance for passive nut 10 to stress, realizes high-precision press fitting positioning.
Claims (6)
1. a kind of electric servo high precision oil cylinder, including cylinder barrel（9）, cylinder barrel（9）Oral area have end cap（12）, end cap（12）On have
Heart hole, close to cylinder barrel（9）The cylinder barrel of bottom（9）There is the first hydraulic fluid port in side wall（14）, close to cylinder barrel（9）The cylinder barrel of oral area（9）Side
Second hydraulic fluid port on wall（13）；The cylinder barrel（9）Inside it has been arranged concentrically piston rod（17）, piston rod（17）One end pass through end cap
（12）Centre bore extend, and piston rod（17）Outer wall and end cap（12）Centre bore between in be slidingly sealed shape cooperation,
Positioned at cylinder barrel（9）Interior piston rod（17）Piston is connected with one end with one heart（6）, piston（6）Outer wall and cylinder barrel（9）Inwall between
Shape is slided in sealing to coordinate；It is characterized in that it is located at cylinder barrel（9）Interior piston rod（17）It has been arranged concentrically on the end face of one end blind
Hole（8）, the blind hole（8）Inside it has been arranged concentrically swingle（7）, swingle（7）Outer wall and blind hole（8）Hole wall between have gap,
Swingle（7）One end passes through cylinder barrel（9）Bottom extend, and swingle（7）Outer wall and cylinder barrel（9）Bottom between in close
Envelope rotates shape and coordinated, swingle（7）Overhanging end on be connected with link gear；Positioned at blind hole（8）That section of interior swingle（7）'s
External screw thread, and this section of swingle are provided with outer wall（7）On have passive nut（10）, passive nut（10）With blind hole（8）Between be in
The circumferentially fixed, shape that slides axially coordinates；The blind hole（8）Oral area have stress set（5）, stress set（5）With blind hole（8）Oral area is in
It is fixedly connected, stress set（5）Inwall and swingle（7）Outer wall between in sealing slide, rotate shape coordinate.
2. electric servo high precision oil cylinder as claimed in claim 1, it is characterised in that positioned at blind hole（8）Interior swingle（7）One
Limited cover is fixed with end（11）, limited cover（11）External diameter be more than passive nut（10）Internal diameter.
3. electric servo high precision oil cylinder as claimed in claim 1, it is characterised in that the link gear includes being concentrically mounted to
Swingle（7）Overhanging end on drive ring（3）, drive ring（3）Outer wall on be fixed with turbine（1）, turbine（1）It is connected with snail
Bar（2）.
4. electric servo high precision oil cylinder as claimed in claim 1, it is characterised in that positioned at cylinder barrel（9）Interior and neighbouring cylinder barrel（9）
The swingle of bottom（7）Upper similar shape is connected with annular boss（4）.
5. electric servo high precision oil cylinder as claimed in claim 1, it is characterised in that the blind hole（8）Hole wall on have axial cunning
Groove（16）, the axial slide（16）Inside there is stop pin（15）, stop pin（15）With axial slide（16）Between in slide shape coordinate, prevent
Ship and resell on another market（15）Side and passive nut（10）It is connected so that passive nut（10）With blind hole（8）Between in circumferentially fixed, it is axially sliding
Dynamic shape coordinates.
6. the electric servo high precision oil cylinder as any one of claim 1 ~ 5, it is characterised in that the end cap（12）In
The heart is provided with guide sleeve in hole（18）, guide sleeve（18）With end cap（12）In sealed connection, guide sleeve between the inwall of centre bore
（18）Inwall and the piston rod（17）Outer wall between in be slidingly sealed shape cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487356.2A CN107882811A (en) | 2017-12-30 | 2017-12-30 | A kind of electric servo high precision oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487356.2A CN107882811A (en) | 2017-12-30 | 2017-12-30 | A kind of electric servo high precision oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882811A true CN107882811A (en) | 2018-04-06 |
Family
ID=61770534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487356.2A Pending CN107882811A (en) | 2017-12-30 | 2017-12-30 | A kind of electric servo high precision oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869490A (en) * | 2019-03-22 | 2019-06-11 | 无锡红旗除尘设备有限公司 | A kind of descending manner Off-line valve automatically adjusting opening degree |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200363268Y1 (en) * | 2004-05-14 | 2004-10-01 | 동명산업기계 주식회사 | A high precision hydranlic cylinder |
| CN2649837Y (en) * | 2003-09-26 | 2004-10-20 | 江都市永坚有限公司 | Hydraulic cylinder of bending machine |
| CN201963634U (en) * | 2011-03-04 | 2011-09-07 | 江苏科技大学 | Two-degree-of-freedom hydraulic oil cylinder |
| CN106602789A (en) * | 2016-12-24 | 2017-04-26 | 上海交通大学 | Pneumatic and motor-hybrid driven linear actuator |
| CN207830266U (en) * | 2017-12-30 | 2018-09-07 | 无锡蓝力智能装备有限公司 | A kind of electricity servo high precision oil cylinder |
-
2017
- 2017-12-30 CN CN201711487356.2A patent/CN107882811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649837Y (en) * | 2003-09-26 | 2004-10-20 | 江都市永坚有限公司 | Hydraulic cylinder of bending machine |
| KR200363268Y1 (en) * | 2004-05-14 | 2004-10-01 | 동명산업기계 주식회사 | A high precision hydranlic cylinder |
| CN201963634U (en) * | 2011-03-04 | 2011-09-07 | 江苏科技大学 | Two-degree-of-freedom hydraulic oil cylinder |
| CN106602789A (en) * | 2016-12-24 | 2017-04-26 | 上海交通大学 | Pneumatic and motor-hybrid driven linear actuator |
| CN207830266U (en) * | 2017-12-30 | 2018-09-07 | 无锡蓝力智能装备有限公司 | A kind of electricity servo high precision oil cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869490A (en) * | 2019-03-22 | 2019-06-11 | 无锡红旗除尘设备有限公司 | A kind of descending manner Off-line valve automatically adjusting opening degree |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180406 |
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| WD01 | Invention patent application deemed withdrawn after publication |