CN216056670U - Electric cylinder with built-in limit switch - Google Patents
Electric cylinder with built-in limit switch Download PDFInfo
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- CN216056670U CN216056670U CN202122162262.6U CN202122162262U CN216056670U CN 216056670 U CN216056670 U CN 216056670U CN 202122162262 U CN202122162262 U CN 202122162262U CN 216056670 U CN216056670 U CN 216056670U
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Abstract
The utility model discloses an electric cylinder with a built-in limit switch, which comprises a motor, a transmission device, a first limiter, a second limiter and a third limiter, wherein a cylinder body installation cavity is arranged in a cylinder body; a groove is formed in the bottom of the cylinder body installation cavity and faces the cylinder body, and a plurality of third limiting devices are arranged in the groove; the third stopper comprises a stopper and a first strong magnet arranged on the side surface of the stopper; the casing of cylinder body is provided with the mounting groove in, is provided with the strong magnet of second in the mounting groove. The limiter is arranged in the cylinder body, so that the size of the electric cylinder is reduced, the production cost is reduced, and the limiter is convenient to install and use; the limiters are all arranged in the cylinder body and are all mechanical limiters, so that the possibility of false operation of an externally-arranged magnetic switch is avoided, a higher protection grade is not required to be applied to the electric cylinder, and the protection cost and the maintenance cost are reduced; the number of the third limiting devices is multiple, more flexible and refined limiting processing can be carried out, and the use cost of a user is further reduced.
Description
Technical Field
The utility model relates to an electric cylinder, in particular to an electric cylinder with a built-in limit switch.
Background
The electric cylinder is a modularized product which integrates a servo motor and a lead screw, converts the rotary motion of the servo motor into linear motion, and simultaneously converts the best advantages of the servo motor, namely accurate rotating speed control, accurate revolution control and accurate torque control into accurate speed control, accurate position control and accurate thrust control; a brand new revolutionary product of a high-precision linear motion series is realized; with the higher and higher requirements of factory automation, the electric cylinder is in operation. The electric cylinder (also called as an electric actuator) is formed by driving various screws (such as a sliding screw and a ball screw) to rotate by various motors (such as a servo motor, a stepping motor and a motor), converting the various screws into linear motion through nuts, and pushing a sliding table to make reciprocating linear motion along various guide rails (such as a sliding guide rail, a ball guide rail and a high-rigidity linear guide rail) like an air cylinder. In order to meet different requirements, the electric cylinder has various specifications and different names, such as: electric sliding table, linear sliding table, industrial robot arm, etc.
The existing limiter of the electric cylinder is generally fixedly installed on the outer surface of a cylinder body, so that the electric cylinder is easy to damage, and the whole size of the electric cylinder is larger due to the fact that the limiter is installed on the outer surface of the cylinder body of the electric cylinder, so that the production cost is increased, and the use and installation are inconvenient; meanwhile, as the limiter is arranged outside and is generally a conventional magnetic switch, the situation of misoperation is easy to occur, the protection grade of the electric cylinder is also improved, and the protection cost and the maintenance cost are increased; the existing electric cylinder limiter only has limit at a fixed distance, flexible and more detailed adjustment cannot be carried out, and the use cost of a user is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an electric cylinder with a built-in limit switch.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to an electric cylinder with a built-in limit switch, which comprises a motor, a transmission device, a first limiter, a second limiter and a third limiter, wherein,
the motor is in transmission connection with the screw rod through a transmission device;
the screw rod is arranged in the cylinder body, wherein,
a cylinder body installation cavity is arranged in the cylinder body;
a groove is arranged in the cylinder body from the bottom of the cylinder body mounting cavity, wherein,
a plurality of third limiters are arranged in the grooves;
the third stopper comprises a stopper and a first strong magnet arranged on the side surface of the stopper, wherein,
the limiting block is arranged on the rotating shaft;
an installation groove is arranged in the shell of the cylinder body, wherein,
and a second strong magnetic block is arranged in the mounting groove.
As a preferable technical solution of the present invention, the mounting groove is located at one side of the groove, wherein,
the mounting groove is provided with at least one side opening.
In a preferred embodiment of the present invention, a part of the end of the lead screw located in the cylinder is mounted in a bearing, wherein,
the bearing is sleeved in the bearing seat;
the end part of the cylinder body is provided with a cylinder body end cover, wherein,
a second stopper is arranged on the inner side of the cylinder body end cover;
a first stopper is installed in the bearing seat.
In a preferred embodiment of the present invention, the first ferromagnetic block and the second ferromagnetic block have opposite magnetic poles.
As a preferable technical solution of the present invention, a clamping block is installed on the back of the limiting block opposite to the first strong magnetic block, wherein,
and a clamping plate is arranged on one side of the rotating shaft.
As a preferable technical scheme of the utility model, the second strong magnet is in clearance fit or interference fit with the mounting groove.
As a preferable technical scheme of the utility model, two ends of the rotating shaft are arranged on the side wall of the groove.
As a preferred technical proposal of the utility model, the screw rod is also sleeved in the nut, wherein,
the end of the nut is connected with a piston rod.
The utility model has the following beneficial effects: the limiter is arranged in the cylinder body, so that the size of the electric cylinder is reduced, the production cost is reduced, and the limiter is convenient to install and use; the limiters are all arranged in the cylinder body and are all mechanical limiters, so that the possibility of false operation of an externally-arranged magnetic switch is avoided, a higher protection grade is not required to be applied to the electric cylinder, and the protection cost and the maintenance cost are reduced; the number of the third limiting devices is multiple, more flexible and refined limiting processing can be carried out, and the use cost of a user is further reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a portion of the present invention;
FIG. 3 is a second partial schematic view of the present invention;
in the figure: 1. a motor; 2. a transmission device; 3. a cylinder body; 4. a screw rod; 5. a bearing; 6. a bearing seat; 7. a nut; 8. a piston rod; 9. a first stopper; 10. a second stopper; 11. a cylinder body installation cavity; 12. a third stopper; 13. a limiting block; 14. a first strong magnetic block; 15. a rotating shaft; 16. clamping a plate; 17. a clamping block; 18. mounting grooves; 19. a second strong magnetic block; 20. and a cylinder end cover.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-3, the present invention provides an electric cylinder with a built-in limit switch, which comprises a motor 1, a transmission device 2, a first limit stop 9, a second limit stop 10 and a third limit stop 12, wherein the motor 1 is in transmission connection with a screw rod 4 through the transmission device 2, and a transmission belt or a gear can be installed in the transmission device 2 for transmission;
the screw rod 4 is installed in the cylinder body 3, wherein a cylinder body installation cavity 11 is arranged in the cylinder body 3, a groove 1101 is arranged in the cylinder body 3 from the bottom of the cylinder body installation cavity 11, a plurality of third stoppers 12 are arranged in the groove 1101, specifically, each third stopper 12 comprises a stopper 13 and a first strong magnet 14 installed on the side surface of the stopper 13, the stopper 13 is installed on the rotating shaft 15, in order to control the stopper 13 and the first strong magnet 14, an installation groove 18 is arranged in the shell of the cylinder body 3, wherein a second strong magnet 19 is arranged in the installation groove 18, the magnetic poles of the first strong magnet 14 and the second strong magnet 19 are opposite, when in use, if the second strong magnet 19 is moved to a position not in the position corresponding to any stopper 13, the stopper 13 is in a flat lying state (because the second strong magnet 19 does not apply a repulsive force to any stopper 13), only first stopper 9 and second stopper 10 have limiting displacement, if need adjust, move the strong magnet 19 of second below to the stopper 13 that corresponds, then first strong magnet 14 can receive the effect of repulsion and rotate along pivot 15, realize surpassing recess 1101, form new spacing specification with first stopper 9, when not needing new spacing specification, move the strong magnet 19 of second to any not with stopper 13 just corresponding position can.
The mounting groove 18 is positioned at one side of the groove 1101, wherein at least one side of the mounting groove 18 is open, so that a push-pull rod or a button and other devices can be conveniently arranged on the second strong magnetic block 19 to adjust the position of the second strong magnetic block 19 in the mounting groove 18; the second strong magnet 19 and the mounting groove 18 are in clearance fit or interference fit, and the position of the second strong magnet 19 can be fixed and can be moved.
The end part of the screw rod 4, which is positioned at the cylinder body 3, is arranged in a bearing 5, wherein the bearing 5 is sleeved in a bearing seat 6;
the end part of the cylinder body 3 is provided with a cylinder body end cover 20, wherein the inner side of the cylinder body end cover 20 is provided with a second stopper 10, the bearing seat 6 is internally provided with a first stopper 9, and the first stopper 9, the second stopper 10 and the third stopper 12 are all arranged in the cylinder body 3, so that the size of the electric cylinder is reduced, the production cost is reduced, and the installation and the use are convenient; the limiters are all arranged inside the cylinder body 3 and are all mechanical limiters, so that the possibility of false operation of an externally-arranged magnetic switch is avoided, a higher protection grade is not required to be applied to the electric cylinder, and the protection cost and the maintenance cost are reduced; the number of the third limiting devices 12 is multiple, so that more flexible and refined limiting processing can be performed, and the use cost of a user is further reduced.
The stopper 13 is installed fixture block 17 for the back of first strong magnet 14, and wherein, one side of pivot 15 is provided with cardboard 16, and cardboard 16 can prevent that stopper 13 from rotating excessively, and fixture block 17 can realize that stopper 13 and first strong magnet 14 lose when repulsive force to the appointed orientation rotation lie flat.
Both ends of the rotation shaft 15 are mounted on the side walls of the groove 1101.
The screw rod 4 is further sleeved in a nut 7, wherein the end of the nut 7 is connected with a piston rod 8.
Specifically, when in use, a cylinder body installation cavity 11 is arranged in the cylinder body 3, a groove 1101 is arranged in the bottom of the cylinder body installation cavity 11 towards the cylinder body 3, wherein a plurality of third stoppers 12 are arranged in the groove 1101, specifically, the third stoppers 12 comprise stoppers 13 and first strong magnets 14 arranged on the side surfaces of the stoppers 13, wherein the stoppers 13 are arranged on the rotating shaft 15, in order to control the stoppers 13 and the first strong magnets 14, an installation groove 18 is arranged in the shell of the cylinder body 3, wherein, second strong magnets 19 are arranged in the installation groove 18, the magnetic poles of the first strong magnets 14 and the second strong magnets 19 are opposite, when in use, if the second strong magnets 19 are moved to a position which is not in the positive correspondence of any stopper 13, the stoppers 13 are in a lying state (because the second strong magnets 19 do not apply repulsion force to any stopper 13) and cannot exceed the groove 1101, only the first limiting stopper 9 and the second limiting stopper 10 have limiting functions, if the adjustment is needed, the second strong magnetic block 19 is moved to the position below the corresponding limiting stopper 13, the first strong magnetic block 14 can rotate along the rotating shaft 15 under the action of repulsion force to exceed the groove 1101 and form a new limiting specification with the first limiting stopper 9, and when the new limiting specification is not needed, the second strong magnetic block 19 is moved to any position which does not correspond to the limiting stopper 13; first stopper 9, second stopper 10 and third stopper 12 all install in cylinder body 3, have reduced electronic jar's size, have reduced manufacturing cost, also easy to assemble and use.
The limiter is arranged in the cylinder body 3, so that the size of the electric cylinder is reduced, the production cost is reduced, and the limiter is convenient to install and use; the limiters are all arranged inside the cylinder body 3 and are all mechanical limiters, so that the possibility of false operation of an externally-arranged magnetic switch is avoided, a higher protection grade is not required to be applied to the electric cylinder, and the protection cost and the maintenance cost are reduced; the number of the third limiting devices 12 is multiple, so that more flexible and refined limiting processing can be performed, and the use cost of a user is further reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An electric cylinder with a built-in limit switch is characterized by comprising a motor (1), a transmission device (2), a first limit device (9), a second limit device (10) and a third limit device (12), wherein,
the motor (1) is in transmission connection with the screw rod (4) through the transmission device (2);
the screw rod (4) is arranged in the cylinder body (3), wherein,
a cylinder body mounting cavity (11) is arranged in the cylinder body (3);
a groove (1101) is arranged in the bottom of the cylinder body mounting cavity (11) towards the cylinder body (3), wherein,
a plurality of third limiters (12) are arranged in the groove (1101);
the third stopper (12) comprises a stopper (13) and a first strong magnet (14) arranged on the side surface of the stopper (13), wherein,
the limiting block (13) is arranged on the rotating shaft (15);
a mounting groove (18) is arranged in the shell of the cylinder body (3), wherein,
a second strong magnet (19) is arranged in the mounting groove (18).
2. The electric cylinder with a built-in limit switch according to claim 1, wherein the mounting groove (18) is located at one side of the groove (1101), wherein,
the mounting groove (18) is open at least one side.
3. An electric cylinder with built-in limit switch according to claim 1 or 2, characterized in that a part of the end of the lead screw (4) located at the cylinder body (3) is installed in a bearing (5), wherein,
the bearing (5) is sleeved in the bearing seat (6);
the end of the cylinder body (3) is provided with a cylinder body end cover (20), wherein,
a second stopper (10) is arranged on the inner side of the cylinder body end cover (20);
a first limiting stopper (9) is installed in the bearing seat (6).
4. An electric cylinder with built-in limit switch according to claim 1, characterized in that the first strong magnet (14) and the second strong magnet (19) have opposite poles.
5. The electric cylinder with built-in limit switch according to claim 1, wherein a latch block (17) is installed at a back of the limit block (13) with respect to the first strong magnet (14), wherein,
and a clamping plate (16) is arranged on one side of the rotating shaft (15).
6. The electric cylinder with a built-in limit switch according to claim 1, wherein the second strong magnet (19) is in clearance fit or interference fit with the mounting groove (18).
7. An electric cylinder with a built-in limit switch according to claim 1, wherein both ends of the rotation shaft (15) are installed on the side wall of the groove (1101).
8. The electric cylinder with a built-in limit switch according to claim 1, wherein the lead screw (4) is further sleeved in a nut (7), wherein,
the end part of the nut (7) is connected with a piston rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122162262.6U CN216056670U (en) | 2021-09-08 | 2021-09-08 | Electric cylinder with built-in limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122162262.6U CN216056670U (en) | 2021-09-08 | 2021-09-08 | Electric cylinder with built-in limit switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056670U true CN216056670U (en) | 2022-03-15 |
Family
ID=80536077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122162262.6U Active CN216056670U (en) | 2021-09-08 | 2021-09-08 | Electric cylinder with built-in limit switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056670U (en) |
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2021
- 2021-09-08 CN CN202122162262.6U patent/CN216056670U/en active Active
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