CN208862684U - A kind of electric cylinders of external guide frame - Google Patents
A kind of electric cylinders of external guide frame Download PDFInfo
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- CN208862684U CN208862684U CN201821729534.8U CN201821729534U CN208862684U CN 208862684 U CN208862684 U CN 208862684U CN 201821729534 U CN201821729534 U CN 201821729534U CN 208862684 U CN208862684 U CN 208862684U
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- screw
- front cover
- electric cylinders
- ball
- guide frame
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Abstract
The utility model discloses a kind of electric cylinders of external guide frame, including front cover, cylinder barrel, rear cover and motor, cylinder barrel one end is connected to front cover, the cylinder barrel other end is connected to rear cover, piston is equipped in cylinder barrel, ball-screw, feed screw nut and hollow piston rod, motor is connect with ball-screw-transmission, feed screw nut is connected on ball-screw, feed screw nut is connect with piston, hollow piston rod one end is connect with piston, the hollow piston rod other end passes through front cover and is connected with panel, front cover is connected with mounting plate, linear bearing is equipped in mounting plate, guide rod is equipped in linear bearing, guide rod is connect with panel.The utility model has operation noise small, long service life, compact-sized feature.
Description
Technical field
The utility model relates to electric cylinders technical field, in particular to a kind of electric cylinders of external guide frame.
Background technique
With the continuous improvement of current industrial automation drive technology, also increasingly to the precision requirement of drive mechanism
It is high.Electric cylinders linear transmission, by ball-screw and feed screw nut relative rolling, fixed feed screw nut drives piston rod to turn
It is changed to linear motion.For the precision for guaranteeing transmission, otherwise rotary device of setting up defences on feed screw nut piston not can guarantee accurately
Piston is usually equipped with guide pad, guide groove is equipped on cylinder barrel, due to needing by positioning accuracy to realize accurate positioning accuracy
Cylinder barrel is opened and is processed, needs to open up guide groove up and down on inner wall of cylinder circle, when opening cylinder barrel drawing-die by die sinking process technology
Limitation, it is difficult to ensure that the precision of cylinder barrel；Simultaneously because the structure that guide groove is set on cylinder barrel is limited in by installation space, it is inevitable
Cause guide pad smaller to the contact area of cylinder barrel guide groove, guide pad under big twisting force to the pressure of cylinder barrel guide groove compared with
It is big and easy to wear, cause the accuracy of transmission device not high.This guide frame existed general problem is cylinder barrel guide groove
It is easier to wear-out failure, the problems such as noise is big, and manufacturing cost is high, potential high failure rate.
Summary of the invention
In view of the deficiencies of the prior art and defect, a kind of electric cylinders of external guide frame are provided, has operation noise small, makes
Feature long with the service life, compact-sized.
To achieve the above object, the utility model provides following technical scheme.
A kind of electric cylinders of external guide frame, including front cover, cylinder barrel, rear cover and motor, cylinder barrel one end are connected to front cover, cylinder
The cylinder other end is connected to rear cover, is equipped with piston, ball-screw, feed screw nut and hollow piston rod, motor and ball wire in cylinder barrel
Thick stick transmission connection, feed screw nut are connected on ball-screw, and feed screw nut is connect with piston, and hollow piston rod one end and piston connect
It connecing, the hollow piston rod other end passes through front cover and is connected with panel, and front cover is connected with mounting plate, is equipped with linear bearing in mounting plate,
Guide rod is equipped in linear bearing, guide rod is connect with panel.
Further, angular contact ball bearing is equipped in rear cover, ball-screw one end is installed in angular contact ball bearing, ball
The lead screw other end protrudes into hollow piston rod.
Further, bearing gland is additionally provided in rear cover, bearing gland is pressed on the end face of angular contact ball bearing.
Further, rear cover side is connected with motor cabinet, and motor is connected on motor cabinet, and shaft coupling is equipped in motor cabinet,
Motor is connect by shaft coupling with ball-screw-transmission.
Further, the both ends of front cover and rear cover are respectively equipped with rod nut mounting hole, and front cover and rear cover both ends pass through drawing
Bar and rod nut are locked.
Further, the side of piston is equipped with magnet ring slot, and magnet ring is equipped in magnet ring slot, and magnet ring passes through holding screw positioning lock
Tightly.
Further, it is embedded on front cover and is embedded with the dust-proof composite rim of hollow piston rod cooperation and guide sleeve, front cover
With the bumper of piston cooperation.
Further, piston outer periphery is equipped with wear ring.
Further, cylinder barrel outer wall is equipped with and the oil filler point that is connected in cylinder barrel.
Further, one end that hollow piston rod stretches out in front cover has been connected through a screw thread stud, panel by screw with
Stud is fixedly connected.
The utility model has the following beneficial effects: the electric cylinders of the utility model, in use, motor works, motor drives ball
Lead screw rotation, ball screw turns move feed screw nut along ball-screw, and band piston is moved when feed screw nut is mobile
Dynamic, piston is mobile to drive hollow piston rod to stretch out or retract, and is connected with panel by hollow piston rod, front cover is connected with installation
Plate, mounting plate is interior to be equipped with linear bearing, is equipped with guide rod in linear bearing, guide rod is connect with panel, so that hollow piston rod
In the process of moving, guide rod also moves in linear bearing therewith, and guide rod in the process of moving, can be to hollow work
Guiding role is played in stopper rod movement, moreover it is possible to and it prevents hollow piston rod from rotating in the process of moving, resists anti-torque stronger,
And it is compact-sized, it is easy for installation.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model.
Fig. 2 is the overall structure diagram of the utility model.
Fig. 3 is the partial sectional view of the utility model.
In figure, 1. studs；2. dust-proof composite rim；3. front cover；4. guide sleeve；5. bumper；6. hollow piston rod；7. cylinder
Cylinder；8. ball-screw；9. wear ring；10. holding screw；11. magnet ring；12. feed screw nut；13. piston；Hexagonal cylindrical in 14.
Head screw；15. bearing gland；16. angular contact ball bearing；17. rear cover；18. motor cabinet；19. shaft coupling；20. servo motor；
21. locking nut；22. rod nut；23. pull rod；24. mounting plate；25 panels；26. guide rod；27. linear bearing；28. note
Oilhole.
Specific embodiment
The utility model is further illustrated in conjunction with attached drawing.
Referring to Fig. 1 to a kind of electric cylinders of external guide frame shown in Fig. 3, including front cover 3, cylinder barrel 7, rear cover 17 and motor
20,7 one end of cylinder barrel is connected to front cover 3, and 7 other end of cylinder barrel is connected to rear cover 17, and the both ends of front cover 3 and rear cover 17 are respectively equipped with drawing
22 mounting hole of bar nut, front cover 3 and 17 both ends of rear cover are locked by pull rod 23 and rod nut 22, make cylinder body bearing capacity more
By force, structure more fastens, is firm, and piston 13, ball-screw 8, feed screw nut 12 and hollow piston rod 6, motor are equipped in cylinder barrel 7
20 are sequentially connected with ball-screw 8, and 17 side of rear cover is connected with motor cabinet 18, and motor 20 is connected on motor cabinet 18, motor cabinet
Shaft coupling 19 is equipped in 18, motor 20 is sequentially connected by shaft coupling 19 and ball-screw 8, thus dynamic for the transmitting of ball-screw 8
Power, motor 20 are servo motor 20, are equipped with angular contact ball bearing 16 in rear cover 17,8 one end of ball-screw is installed on angular contact ball
In bearing 16,8 other end of ball-screw is protruded into hollow piston rod 6, angular contact ball bearing 16 to support ball-screw 8, after
Bearing gland 15 is additionally provided in lid 17, bearing gland 15 is pressed on the end face of angular contact ball bearing 16, and rear cover 17 is equipped with bearing
Mounting hole and bearing gland mounting hole are respectively used to setting angular contact ball bearing 16 and bearing gland 15.Angular contact ball bearing 16
Outer circle and the bearing mounting hole of rear cover 17 be fitted close, angular contact ball bearing 16 is packed into rear cover 17 to right end boss, bearing pressure
The right end of lid 15 is equipped with boss and is packed into the bearing mounting hole of rear cover 17, and the left end of bearing gland 15 also is provided with boss and cylinder barrel 7
Inner hole.Ball-screw 8 and feed screw nut 12 form 8 component of ball-screw, and angular contact ball is housed in the right end of ball-screw 8
Bearing 16,16 right side of angular contact ball bearing by locking nut 21 fastening locking, prevent bearing have axial direction displacement and
Influence transmission accuracy.
Feed screw nut 12 is connected on ball-screw 8, and feed screw nut 12 and piston 13 pass through hexagon socket cap head screw 14
Connection, 6 one end of hollow piston rod are connect with piston 13, and 6 other end of hollow piston rod passes through front cover 3 and is connected with panel 25, hollow
One end that piston rod 6 stretches out in front cover 3 has been connected through a screw thread stud 1, and panel 25 is fixedly connected by screw with stud 1, preceding
Lid 3 is connected with mounting plate 24, and linear bearing 27 is equipped in mounting plate 24, is equipped with guide rod 26, guide rod 26 in linear bearing 27
It is connected by screw to panel 25.
The electric cylinders of the utility model, in use, motor 20 works, motor 20 drives ball-screw 8 to rotate, ball-screw 8
Rotation moves feed screw nut 12 along ball-screw 8, and band piston 13 is mobile when feed screw nut 12 is mobile, and piston 13 moves
It is dynamic that hollow piston rod 6 is driven to stretch out or retract, panel 25 is connected with by hollow piston rod 6, front cover 3 is connected with mounting plate 24,
It is equipped with linear bearing 27 in mounting plate 24, is equipped with guide rod 26 in linear bearing 27, guide rod 26 connect with panel 25, makes to have leisure
Stopper rod 6 be indecisive and changeable in the process of moving, guide rod 26 also moves in linear bearing 27 therewith, and guide rod 26 is in mobile process
In, external support guiding role can be played to the movement of hollow piston rod 6, moreover it is possible to prevent hollow piston rod 6 in mobile process
In rotate, resist anti-torque stronger, and compact-sized, it is easy for installation.
Further, the side of piston 13 is equipped with magnet ring slot, is equipped with magnet ring 11 in magnet ring slot, magnet ring 11 passes through holding screw
10 positioning and lockings cooperate piston 13 with cylinder body external magnetic photoelectric sensor in the process of movement by magnet ring 11, can
Signal is controlled as origin, extreme position, the dust-proof composite rim 2 and guide sleeve cooperated with hollow piston rod 6 is embedded on front cover 3
4, dust-proof composite rim 2 prevents dust from entering in cylinder barrel 7, influences electric cylinders using effect, and guide sleeve 4 is reciprocal to hollow piston rod 6
Movement plays the role of guiding, ensure that the concentricity that hollow piston rod 6 moves, and front cover 3 is embedded with and the cooperation of piston 13
Bumper 5, bumper 5 prevented position from hitting during piston 13 is mobile, and played the role of buffering, prevent due to collision
It wears, 13 periphery of piston is equipped with wear ring 9, reduces the abrasion and influence generated when piston 13 moves in cylinder barrel 7
The service precision of product, extends the service life of electric cylinders, and 7 outer wall of cylinder barrel is equipped with and the oil filler point 28 that is connected in cylinder barrel 7, electricity
Cylinder works under complex environment only to be needed regularly to infuse lubricating grease, easy to maintain.
The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range
The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.
Claims (10)
1. a kind of electric cylinders of external guide frame, including front cover (3), cylinder barrel (7), rear cover (17) and motor (20), cylinder barrel (7) one
End is connected to front cover (3), and cylinder barrel (7) other end is connected to rear cover (17), and piston (13), ball wire are equipped in the cylinder barrel (7)
Thick stick (8), feed screw nut (12) and hollow piston rod (6), the motor (20) and ball-screw (8) are sequentially connected, the lead screw
Nut (12) is connected on the ball-screw (8), and the feed screw nut (12) connect with the piston (13), and feature exists
In: described hollow piston rod (6) one end is connect with the piston (13), and hollow piston rod (6) other end passes through front cover (3)
It being connected with panel (25), the front cover (3) is connected with mounting plate (24), linear bearing (27) are equipped in the mounting plate (24),
Guide rod (26) are equipped in the linear bearing (27), the guide rod (26) connect with the panel (25).
2. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: be equipped in the rear cover (17)
Angular contact ball bearing (16), described ball-screw (8) one end are installed in the angular contact ball bearing (16), the ball-screw
(8) other end protrudes into hollow piston rod (6).
3. a kind of electric cylinders of external guide frame according to claim 2, it is characterised in that: also set in the rear cover (17)
Have bearing gland (15), the bearing gland (15) is pressed on the end face of the angular contact ball bearing (16).
4. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: rear cover (17) side connects
It is connected to motor cabinet (18), motor (20) is connected on motor cabinet (18), is equipped with shaft coupling (19) in motor cabinet (18), motor (20)
It is sequentially connected by shaft coupling (19) and ball-screw (8).
5. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: the front cover (3) and rear cover
(17) both ends are respectively equipped with rod nut (22) mounting hole, the front cover (3) and rear cover (17) both ends by pull rod (23) with
Rod nut (22) locking.
6. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: the side of the piston (13)
Equipped with magnet ring slot, magnet ring (11) are equipped in the magnet ring slot, the magnet ring (11) passes through holding screw (10) positioning and locking.
7. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: be embedded on the front cover (3)
There are the dust-proof composite rim (2) and guide sleeve (4) with hollow piston rod (6) cooperation, the front cover (3) is embedded with matches with piston (13)
The bumper (5) of conjunction.
8. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: piston (13) periphery
It is equipped with wear ring (9).
9. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: on cylinder barrel (7) outer wall
Equipped with the oil filler point (28) that is connected in cylinder barrel (7).
10. a kind of electric cylinders of external guide frame according to claim 1, it is characterised in that: the hollow piston rod (6)
The one end for stretching out in front cover (3) has been connected through a screw thread stud (1), and the panel (25) connects by the way that screw and stud (1) are fixed
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729534.8U CN208862684U (en) | 2018-10-24 | 2018-10-24 | A kind of electric cylinders of external guide frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821729534.8U CN208862684U (en) | 2018-10-24 | 2018-10-24 | A kind of electric cylinders of external guide frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208862684U true CN208862684U (en) | 2019-05-14 |
Family
ID=66421460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729534.8U Active CN208862684U (en) | 2018-10-24 | 2018-10-24 | A kind of electric cylinders of external guide frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208862684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112769283A (en) * | 2020-12-31 | 2021-05-07 | 无锡灵德自动化科技有限公司 | Integrated electric actuator |
| WO2021217885A1 (en) * | 2020-04-27 | 2021-11-04 | 苏州舍勒智能科技有限公司 | New small-specification compact type electric push rod cylinder |
| CN113639024A (en) * | 2021-10-15 | 2021-11-12 | 太原理工大学 | Dead electronic jar of lead screw nut floating centering anti-sticking |
-
2018
- 2018-10-24 CN CN201821729534.8U patent/CN208862684U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021217885A1 (en) * | 2020-04-27 | 2021-11-04 | 苏州舍勒智能科技有限公司 | New small-specification compact type electric push rod cylinder |
| CN112769283A (en) * | 2020-12-31 | 2021-05-07 | 无锡灵德自动化科技有限公司 | Integrated electric actuator |
| CN113639024A (en) * | 2021-10-15 | 2021-11-12 | 太原理工大学 | Dead electronic jar of lead screw nut floating centering anti-sticking |
| CN113639024B (en) * | 2021-10-15 | 2021-12-21 | 太原理工大学 | Dead electronic jar of lead screw nut floating centering anti-sticking |
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