CN219918615U - Servo electric jar of accurate control formula - Google Patents
Servo electric jar of accurate control formula Download PDFInfo
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- CN219918615U CN219918615U CN202320896292.6U CN202320896292U CN219918615U CN 219918615 U CN219918615 U CN 219918615U CN 202320896292 U CN202320896292 U CN 202320896292U CN 219918615 U CN219918615 U CN 219918615U
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- cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 6
- 230000008859 change Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a precise control type servo electric cylinder which comprises a cylinder body and a servo motor, wherein one end of the cylinder body is provided with an upper cover plate, the other end of the cylinder body is connected with the servo motor through a connecting seat assembly, a rotating screw rod and an axially moving push rod are arranged in a driving cavity of the cylinder body, and the push rod is in threaded connection with the screw rod through a screw rod nut; a distance detection mechanism is arranged in a driving cavity of the cylinder body, a guide groove and a material saving cavity are arranged in the driving cavity, and the guide groove and the material saving cavity are alternately distributed; the guide groove is connected with the screw rod nut in a sliding way; the distance detection mechanism is located in the material saving cavity. The utility model adopts the built-in structural design of the distance detection mechanism, can precisely control the servo motor to drive the push rod to the set position and push and pull or bear in the set distance range, has stable and reliable operation, is suitable for more use scenes, better protects the distance detection mechanism, improves the reliability and stability of detection, and ensures that the electric cylinder has better integrity.
Description
Technical Field
The utility model relates to the technical field of electric cylinders, in particular to a precisely controlled servo electric cylinder.
Background
The electric cylinder in the prior art cannot accurately acquire the extension or retraction length of the push rod in real time when carrying or pushing and pulling due to the limitation of structural arrangement, and cannot push and pull or carry the push rod at any position or within a set distance range according to the requirements of use scenes, and the operation process is not stable enough, is easy to shake, and cannot meet the requirements of the existing market in use field Jing Shouxian.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the precise control type servo electric cylinder, which adopts the built-in structural design of the distance detection mechanism, can precisely control the servo motor to drive the push rod to the set position and push and pull or bear in the set distance range, is suitable for more use scenes, better protects the distance detection mechanism, improves the reliability and stability of detection, and ensures that the electric cylinder has better integration.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the precise control type servo electric cylinder comprises a cylinder body and a servo motor and is characterized in that an upper cover plate is arranged at one end of the cylinder body, the other end of the cylinder body is connected with the servo motor through a connecting seat assembly, a rotating screw rod and an axially moving push rod are arranged in a driving cavity of the cylinder body, and the push rod is in threaded connection with the screw rod through a screw rod nut;
the distance detection mechanism is arranged in the driving cavity of the cylinder body and used for detecting the position of the screw nut in the cylinder body, and the distance detection mechanism is electrically connected with the servo motor.
Preferably, a guide groove and a material saving cavity are arranged in the driving cavity of the cylinder body, the guide groove and the material saving cavity are circumferentially and alternately arranged with the axis of the cylinder body as the center, the guide groove and the material saving cavity extend from the upper cover plate to the connecting seat assembly, and the guide groove is used for limiting the freedom degree of axial sliding of the screw nut relative to the cylinder body; the distance detection mechanism is located in the material saving cavity.
Preferably, the distance detection mechanism comprises an induction piece and a distance sensor which is arranged corresponding to the induction piece, the induction piece is positioned in the material saving cavity and is connected with the screw rod nut, the distance sensor is arranged on the connecting seat component, and the distance sensor is electrically connected with the servo motor.
Preferably, the connecting seat assembly comprises a first connecting seat, a second connecting seat and a third connecting seat which are sequentially connected;
rolling bearings are respectively arranged in the first connecting seat and the third connecting seat; a coupler is arranged in the second connecting seat; the screw rod is connected with an output shaft of the servo motor through a rolling bearing and a coupler.
Preferably, one end of the push rod far away from the screw rod penetrates through the upper cover plate and then extends to the outer side of the cylinder body, and a linear bearing is arranged between the push rod and the upper cover plate.
Preferably, a first pressure sensor is arranged on the inner side surface of the upper cover plate, and the first pressure sensor is electrically connected with the servo motor.
Preferably, a second pressure sensor is arranged on the inner side surface of the first connecting seat, and the second pressure sensor is electrically connected with the servo motor.
Preferably, the bottom of the guide groove is arc-shaped; the screw nut is arranged corresponding to the guide groove.
Preferably, a connecting shell is arranged on the outer side of the servo motor, a connecting plug is arranged at one end, far away from the third connecting seat, of the connecting shell, and the connecting plug is electrically connected with the servo motor.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the material saving cavities which are alternately distributed with the guide grooves are arranged in the cylinder body, the distance detection mechanism consisting of the sensing piece and the distance sensor is arranged in the material saving cavities, and the length of the push rod which extends or retracts is judged by detecting the position change of the screw rod nut in the cylinder body in real time through the distance detection mechanism, so that the push rod can be accurately controlled to be driven to a set position by the servo motor and pushed or pulled or carried in a set distance range, and the device is stable and reliable in operation and suitable for more use scenes.
2. The built-in structural design of the distance detection mechanism is adopted, so that the integrated detection mechanism has better integrity, the distance detection mechanism is better protected, and the reliability and stability of detection are improved;
3. the arrangement of the material saving cavity reduces the overall weight and manufacturing cost of the electric cylinder, and the distance detection mechanism is arranged in the material saving cavity and cannot interfere the operation of the screw nut and the push rod.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a right side view of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 1;
FIG. 4 is a schematic view of the cross-sectional structure B-B in FIG. 2;
FIG. 5 is a schematic view of the cross-sectional structure of the structure C-C in FIG. 2;
wherein: the cylinder body 1, the servo motor 2, the upper cover plate 3, the connecting seat assembly 4, the screw rod 5, the push rod 6, the distance detection mechanism 7, the screw rod nut 8, the rolling bearing 10, the coupler 20, the linear bearing 30, the first pressure sensor 40, the second pressure sensor 50, the connecting shell 60, the connecting plug 61, the guide groove 11, the material saving cavity 12, the first connecting seat 41, the second connecting seat 42, the third connecting seat 43, the sensing piece 71 and the distance sensor 72.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model will be further described with reference to the accompanying drawings and detailed description below:
as shown in fig. 1-5, a precisely controlled servo electric cylinder comprises a cylinder body 1 and a servo motor 2, wherein one end of the cylinder body 1 is provided with an upper cover plate 3, the other end of the cylinder body is connected with the servo motor 2 through a connecting seat component 4, a rotating screw rod 5 and an axially moving push rod 6 are arranged in a driving cavity of the cylinder body 1, and the push rod 6 is in threaded connection with the screw rod 5 through a screw rod nut 8;
the distance detection mechanism 7 is arranged in the driving cavity of the cylinder body 1, the distance detection mechanism 7 is used for detecting the position of the screw nut 8 in the cylinder body 1, and the distance detection mechanism 7 is electrically connected with the servo motor 2.
In the embodiment, when the device works, the length of extension or retraction of the push rod 6 is judged by detecting the position change of the screw nut 8 in the cylinder body 1 in real time through the distance detection mechanism 7, so that the servo motor 2 can be accurately controlled to drive the push rod 6 to a set position and push and pull or bear in a set distance range, the device is stable and reliable in operation, and the device is suitable for more use scenes.
Further, as shown in fig. 3, 4 and 5, a guiding groove 11 and a material saving cavity 12 are arranged in the driving cavity of the cylinder body 1, the guiding groove 11 and the material saving cavity 12 are circumferentially and alternately arranged with the axis of the cylinder body 1 as the center, the guiding groove 11 and the material saving cavity 12 extend from the upper cover plate 3 to the connecting seat assembly 4, and the guiding groove 11 is used for limiting the freedom degree of axial sliding of the screw nut 8 relative to the cylinder body 1; the distance detection mechanism 7 is located in the material saving cavity 12.
In this embodiment, by providing the material saving cavity 12 in the cylinder 1, the distance detecting mechanism 7 is built in the material saving cavity 12, the influence of external factors is reduced, the distance detecting mechanism 7 is better protected, the reliability and stability of detection are improved, and the electric cylinder is better in integration.
In this embodiment, the provision of the material saving cavity 12 reduces the overall weight and manufacturing cost of the electric cylinder, and the distance detecting mechanism 7 is provided in the material saving cavity 12 without interfering with the operation of the lead screw nut 8 and the push rod 6.
Further, as shown in fig. 3 and 5, the distance detecting mechanism 7 includes a sensing piece 71 and a distance sensor 72 disposed corresponding to the sensing piece 71, the sensing piece 71 is located in the material saving cavity 12 and is connected with the screw nut 8, the distance sensor 72 is disposed on the connecting seat component 4, and the distance sensor 72 is electrically connected with the servo motor 2.
In this embodiment, when the electric cylinder operates, the sensing piece 71 moves axially along with the screw nut 8, and the distance sensor 72 disposed on the connecting seat assembly 4 detects the position change of the sensing piece 71 located in the material saving cavity 12 in real time, and by connecting with the external controller, the distance value corresponding to the position change can be stored and recorded, so as to analyze the operation condition of the electric cylinder subsequently; the distance sensor 72 controls the servo motor 2 to run forward or backward according to the input information, and controls the servo motor 2 to stop running when the push rod 6 reaches a set position; when the push rod 6 is pushed and pulled or carried within a set distance range, the distance sensor 72 controls the servo motor 2 to repeatedly perform forward and reverse operations; therefore, the servo motor 2 can be precisely controlled to drive the push rod 6 to a set position, push and pull or bearing can be carried in a set range, the operation is stable and reliable, and the device is suitable for more use scenes.
Further, as shown in fig. 1, 3, 4, and 5, the connection socket assembly 4 includes a first connection socket 41, a second connection socket 42, and a third connection socket 43 that are sequentially connected;
the first connecting seat 41 and the third connecting seat 43 are respectively provided with a rolling bearing 10; the second connecting seat 42 is internally provided with a coupling 20; the screw rod 5 is connected with an output shaft of the servo motor 2 through a rolling bearing 10 and a coupler 20.
In this embodiment, the rolling bearing 10 is used to ensure the working position and rotation precision of the screw 5, ensure the coaxiality of the screw 5 with the cylinder body 1 and the push rod 6, and promote the stability and reliability of the operation of the electric cylinder.
Further, as shown in fig. 4 and 5, one end of the push rod 6 away from the screw rod 5 passes through the upper cover plate 3 and then extends to the outside of the cylinder body 1, and a linear bearing 30 is arranged between the push rod 6 and the upper cover plate 3.
In this embodiment, the above structure improves the stability and the coaxiality of the push rod 6 when axially moving relative to the upper cover plate 3.
The structure ensures that the whole screw rod 5 and the push rod 6 are more stable when being carried or pushed and pulled, and improves the stability of the screw rod 5 and the push rod 6 when bearing radial force.
Further, as shown in fig. 4, a first pressure sensor 40 is disposed on the inner surface of the upper cover plate 3, and the first pressure sensor 40 is electrically connected to the servo motor 2.
Further, as shown in fig. 4, the inner surface of the first connecting seat 41 is provided with a second pressure sensor 50, and the second pressure sensor 50 is electrically connected to the servo motor 2.
In this embodiment, the first pressure sensor 40 and the second pressure sensor 50 detect the pressure of the screw nut 8 to the first pressure sensor 40 and the second pressure sensor 50 respectively, so as to control the starting and closing of the servo motor 2, thereby preventing the screw nut 8 from overtravel to strike the upper cover plate 3 and the first connecting seat 41, ensuring the reliable operation of the electric cylinder and effectively prolonging the service life of the electric cylinder.
Further, as shown in fig. 3, the bottom of the guiding groove 11 is arc-shaped; the screw nut 8 is arranged corresponding to the guide groove 11.
In this embodiment, the above structure increases the sliding area of the lead screw nut 8 and the guide groove 11, improves the smoothness when the lead screw nut 8 slides, and better prevents the lead screw nut 8 from rotating relative to the cylinder 1.
Further, as shown in fig. 1, 4 and 5, a connection housing 60 is disposed at the outer side of the servo motor 2, a connection plug 61 is disposed at one end of the connection housing 60 away from the third connection seat 43, and the connection plug 61 is electrically connected with the servo motor 2.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.
Claims (9)
1. The precise control type servo electric cylinder comprises a cylinder body and a servo motor and is characterized in that an upper cover plate is arranged at one end of the cylinder body, the other end of the cylinder body is connected with the servo motor through a connecting seat assembly, a rotating screw rod and an axially moving push rod are arranged in a driving cavity of the cylinder body, and the push rod is in threaded connection with the screw rod through a screw rod nut;
the distance detection mechanism is arranged in the driving cavity of the cylinder body and used for detecting the position of the screw nut in the cylinder body, and the distance detection mechanism is electrically connected with the servo motor.
2. The precise control type servo electric cylinder according to claim 1, wherein a guide groove and a material saving cavity are arranged in a driving cavity of the cylinder body, the guide groove and the material saving cavity are circumferentially distributed around the axis of the cylinder body, the guide groove and the material saving cavity extend from an upper cover plate to a connecting seat assembly, and the guide groove is used for limiting the freedom degree of axial sliding of a screw nut relative to the cylinder body; the distance detection mechanism is located in the material saving cavity.
3. The precisely controlled servo cylinder according to claim 2, wherein the distance detecting mechanism comprises an induction piece and a distance sensor arranged corresponding to the induction piece, the induction piece is located in the material saving cavity and connected with the screw nut, the distance sensor is arranged on the connecting seat component, and the distance sensor is electrically connected with the servo motor.
4. The precisely controlled servo cylinder as set forth in claim 1, wherein the connector assembly comprises a first connector, a second connector and a third connector connected in sequence;
rolling bearings are respectively arranged in the first connecting seat and the third connecting seat; a coupler is arranged in the second connecting seat; the screw rod is connected with an output shaft of the servo motor through a rolling bearing and a coupler.
5. The precisely controlled servo cylinder as set forth in claim 1, wherein the end of the push rod far from the screw rod passes through the upper cover plate and then extends to the outside of the cylinder body, and a linear bearing is provided between the push rod and the upper cover plate.
6. The precisely controlled servo cylinder as set forth in claim 1, wherein the inner side surface of the upper cover plate is provided with a first pressure sensor, and the first pressure sensor is electrically connected with the servo motor.
7. The precisely controlled servo cylinder as set forth in claim 4, wherein the inner side surface of the first connecting seat is provided with a second pressure sensor, and the second pressure sensor is electrically connected with the servo motor.
8. The precisely controlled servo cylinder according to claim 2, wherein the bottom of the guide groove is arc-shaped; the screw nut is arranged corresponding to the guide groove.
9. The precisely controlled servo cylinder as set forth in claim 4, wherein a connecting housing is provided on the outer side of the servo motor, and a connecting plug is provided on an end of the connecting housing away from the third connecting seat, and the connecting plug is electrically connected with the servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320896292.6U CN219918615U (en) | 2023-04-20 | 2023-04-20 | Servo electric jar of accurate control formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320896292.6U CN219918615U (en) | 2023-04-20 | 2023-04-20 | Servo electric jar of accurate control formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219918615U true CN219918615U (en) | 2023-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320896292.6U Active CN219918615U (en) | 2023-04-20 | 2023-04-20 | Servo electric jar of accurate control formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219918615U (en) |
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2023
- 2023-04-20 CN CN202320896292.6U patent/CN219918615U/en active Active
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