CN211209497U

CN211209497U - Servo electric cylinder

Info

Publication number: CN211209497U
Application number: CN201922417339.2U
Authority: CN
Inventors: 李静
Original assignee: Suzhou Fengdarui Automation Equipment Technology Co ltd
Current assignee: Suzhou Fengdarui Automation Equipment Technology Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-07
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a servo electric cylinder, including synchronizer, the cylinder, the nut seat, the piston rod, ball and servo motor, the side of locating synchronizer is connected to the cylinder, the inner wall both sides of cylinder are cut open and are all equipped with the guide way, the afterbody of cylinder is equipped with the copper sheathing, the inside of cylinder is located to the nut seat, the excircle of nut seat is equipped with the gib block on the surface, and wear-resisting strip standing groove, gib block and guide way sliding fit, piston rod and nut seat body coupling, the piston rod sets up to hollow structure, ball has the inside setting that the screw rod stretched into of threaded part, ball's screw nut installs on the nut seat, ball's head passes nut seat and passes through synchronizer and servo motor's output shaft, the utility model discloses a servo electric cylinder's job stabilization nature is higher, and have longer life.

Description

Servo electric cylinder

Technical Field

The utility model relates to a linear motion field especially relates to servo electronic jar.

Background

With the increasing requirements of factory automation, electric cylinders come into operation, so-called electric cylinders (also called electric actuators) use various motors to drive various screws to rotate, convert the screws into linear motion through nuts, and push sliding tables to do reciprocating linear motion along various guide rails like cylinders.

The piston rod in the existing electric cylinder is easy to wear due to expansion in the cylinder barrel, the service life is short, and the stability of the piston rod is relatively poor when the piston rod executes the expansion action.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the not enough of existence among the background art, so the utility model discloses a servo electronic jar.

The technical scheme is as follows: servo electronic jar, including synchronizer, cylinder, nut seat, piston rod, ball and servo motor, the side of locating synchronizer is connected to the cylinder, the inner wall both sides of cylinder are cuted open and are all equipped with the guide way, the afterbody of cylinder is equipped with the copper sheathing, the inside of cylinder is located to the nut seat, the excircle of nut seat is equipped with gib block and wear-resisting strip standing groove on the surface, gib block and guide way sliding fit, piston rod and nut seat body coupling, the piston rod sets up to hollow structure, ball has the inside setting that the threaded portion stretched into the piston rod, ball's screw nut installs on the nut seat, ball's head passes nut seat and passes through synchronizer and servo motor's output shaft.

Further, the same device adopts a coupler or a synchronous wheel.

Furthermore, the nut seat and the inner walls of the two sides of the cylinder barrel have a distance of 0.5 MM.

Further, the width of the wear strip placing groove is 20MM, and the depth of the wear strip placing groove is 2 MM.

Further, a bearing is arranged at the joint of the head of the ball screw and the synchronizing device.

The utility model discloses realize following beneficial effect:

1. the utility model discloses a piston rod accurate no rotary motion on linear motion has solved the problem of no direction.

2. The utility model discloses a piston rod has passed through the cooperation of wear-resisting strip and front end copper sheathing, and has reached wear-resisting, stable, accurate cooperation between the cylinder, makes the life unprecedented improvement of electric jar.

3. The utility model discloses utilize the piston rod to be hollow structure's characteristics, the lead screw meets with the piston rod realization inside and outside, meets with bearing and connecting axle again to lead screw, piston rod, servo motor's integrated design has been realized.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the utility model discloses a cylinder section structure sketch map.

Fig. 3 is a schematic view of the connection between the nut seat and the piston rod of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples

Referring to fig. 1-3, the servo electric cylinder comprises a synchronizer 2, a cylinder barrel 3, a nut seat 4, a piston rod 10, a ball screw 5 and a servo motor 1, the cylinder barrel is connected with and arranged at the side of the synchronizer, both sides of the inner wall of the cylinder barrel are provided with guide grooves 6, the tail part of the cylinder barrel is provided with a copper sleeve 7, the nut seat is arranged inside the cylinder barrel, the outer circle surface of the nut seat is provided with guide strips 8 and wear-resistant strip placing grooves 9 (used for placing wear-resistant strips 13), the piston rod is matched with the wear-resistant strips and the copper sleeve, so that friction between the piston rod and the cylinder barrel is avoided, the working stability and the working precision are improved, the service life is prolonged, the guide strips are in sliding fit with the guide grooves, the accurate non-rotation motion of the piston rod on the linear motion is realized, the problem of non-guide is solved, the piston rod is integrally connected with the nut seat, so that the ball screw can pass through), the threaded part of the ball screw extends into the interior of the piston rod, a screw nut 11 of the ball screw is arranged on a nut seat, the head of the ball screw passes through the nut seat and is connected with an output shaft of a servo motor through a synchronizing device, and the servo motor can drive the piston rod to perform telescopic action.

In this embodiment, a coupling or a synchronizing wheel is used with the device for synchronizing the output shaft (not shown) of the servo motor with the ball screw.

In the embodiment, the nut seat and the inner walls of the two sides of the cylinder barrel have a distance of 0.5 MM.

In this embodiment, the width of the wear strip placement groove is 20MM, and the depth of the wear strip placement groove is 2 MM.

In the present embodiment, a bearing 12 is provided at the junction of the head of the ball screw and the synchronizing device, so that the ball screw performs stable rotation.

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All changes and modifications that come within the spirit of the invention are desired to be protected.

Claims

1. Servo electronic jar, its characterized in that, including synchronizer, cylinder, nut seat, piston rod, ball and servo motor, the side of locating synchronizer is connected to the cylinder, the inner wall both sides of cylinder are cuted open and are all equipped with the guide way, the afterbody of cylinder is equipped with the copper sheathing, the inside of cylinder is located to the nut seat, the excircle of nut seat is equipped with gib block and wear-resisting strip standing groove on the surface, gib block and guide way sliding fit, piston rod and nut seat body coupling, the piston rod is established to hollow structure, ball has the inside setting that the screw thread part stretches into the piston rod, ball's lead screw nut installs on the nut seat, ball's head passes nut seat and passes through synchronizer and servo motor's output shaft.

2. Servo electric cylinder according to claim 1, characterized in that the synchronizing means is a coupling or a synchronizing wheel.

3. Servo electric cylinder according to claim 1, characterized in that the nut seat is at a distance of 0.5MM from both side inner walls of the cylinder barrel.

4. The servo electric cylinder according to claim 1, wherein the wear strip placement groove has a width of 20MM and a depth of 2 MM.

5. Servo electric cylinder according to claim 1, characterized in that a bearing is provided at the connection of the head of the ball screw and the synchronization means.