CN214850825U

CN214850825U - Novel multistage servo electric cylinder

Info

Publication number: CN214850825U
Application number: CN202121278653.8U
Authority: CN
Inventors: 罗宿; 程先锋; 陈国平; 蔡林虎; 刘德东
Original assignee: Suzhou Tongjin Precision Industry Joint-Stock Co ltd
Current assignee: Suzhou Tongjin Precision Industry Joint-Stock Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-23
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a novel multistage servo electric cylinder, including the base and set up servo motor, first cylinder body and the apron on the base, it is still including setting up the second cylinder body in first cylinder body, setting up push rod in the second cylinder body, setting up first lead screw in the push rod and setting up the second lead screw in first lead screw, the outside of first cylinder body is provided with original point switch, preceding limit switch and back limit switch, the tip of second lead screw is provided with guide block, pivot, bearing and bearing apron, the second cylinder body with be provided with first piston between the push rod, the second cylinder body with be provided with 40 nut and ball bearing between the first lead screw, first cylinder body with be provided with first corner contact bearing and second piston between the first lead screw. The utility model provides a multistage servo electronic jar can realize electronic jar's multistage output, has compact structure, output journey length, intensity height, non-maintaining and is showing the advantage.

Description

Novel multistage servo electric cylinder

Technical Field

The utility model relates to a servo electronic jar technical field, especially a novel multistage servo electronic jar.

Background

The servo 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, so that high-precision linear motion is realized.

However, most of the existing servo electric cylinders are single-stage servo electric cylinders, single-stage output of the servo electric cylinders cannot be sufficient for environments which need large-stroke operation and are relatively narrow in installation position, and along with the development of science and technology, the requirements of social production cannot be met gradually, and the servo electric cylinders are not enough for occasions with low productivity and low positioning accuracy requirements and for occasions with high requirements on quick transmission and positioning accuracy.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a novel multistage servo electric cylinder is designed.

The technical scheme of the utility model is, a novel multistage servo electric cylinder, including the base and set up servo motor, first cylinder body and the apron on the base, it is still including setting up the second cylinder body in the first cylinder body, setting up the push rod in the second cylinder body, setting up the first lead screw in the push rod and setting up the second lead screw in the first lead screw, the outside of first cylinder body is provided with initial point switch, preceding limit switch and back limit switch, the tip of second lead screw is provided with guide block, pivot, bearing and bearing apron, the second cylinder body with be provided with first piston between the push rod, the second cylinder body with be provided with 40 nut and ball bearing between the first lead screw, the first cylinder body with be provided with first corner contact bearing and second piston between the first lead screw.

As the utility model discloses a progress is supplemented, preceding limit switch set up in the front end of first cylinder body, back limit switch with the initial point switch all set up in the rear end of first cylinder body, wherein back limit switch is located preceding limit switch with between the initial point switch, just the initial point switch is close to back limit switch.

As the utility model discloses a progress is supplemented, the guide block with the end connection of second lead screw, bearing cover plate fixes on the guide block, and will bearing is fixed in the inside of guide block, the pivot is equipped with a plurality ofly, and is equidistant distribution and be in on the guide block.

As the utility model discloses a progress is supplemented, first cylinder body with connect through the nut between the second cylinder body, first cylinder body passes through the nut to be fixed on the base, the tip of second cylinder body is provided with the axle sleeve, the tip of push rod is provided with U type bolt.

As the utility model discloses a progress is supplemented, the front end of first cylinder body is provided with preceding flange and axle sleeve, the axle sleeve with preceding flange fixed connection, first cylinder body with be provided with the rear flange between the base.

As the utility model discloses a progress is supplemented, first cylinder body with be provided with K type lock nut and third piston between the second lead screw, K type lock nut with the third piston is all located first corner contact bearing with between the rear flange, wherein the third piston is located K type lock nut with between the rear flange.

As the utility model discloses a progress is supplemented, still be provided with second angular contact bearing on the second lead screw, second angular contact bearing is located the rear flange with between the second lead screw, second angular contact bearing with still be provided with square lock nut between the base.

As the utility model discloses a progress is supplemented, all be provided with synchronizing wheel, two on servo motor and the second lead screw respectively connect through the belt drive between the synchronizing wheel.

As the utility model discloses a progress is supplemented, the base with the intermediate position of apron is provided with the guide pillar, the outside of apron is provided with the round pin axle plate, the outside of base is provided with the dog, servo motor with dog fixed connection.

As an additional advantage of the present invention, the first lead screw and the second lead screw are slidably connected.

Its beneficial effects lie in, the utility model provides a multistage servo electronic jar can realize electronic jar's multistage output through a plurality of lead screws that set up, has compact structure, long, the intensity of output journey is high, non-maintaining showing the advantage, and the linear motion of high accuracy can be realized to the guide block and the limit switch of bearing and the outside setting that set up, and positioning accuracy is high, uses in the operational environment that a lot of big stroke operations and mounted position are narrow and small relatively.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is an enlarged schematic view of a structure at a in fig. 2.

In the figure, 1, a first cylinder; 2. a servo motor; 3. a base; 4. a cover plate; 5. a pin shaft plate; 6. A front limit switch; 7. a rear limit switch; 8. an origin switch; 9. a front flange; 10. a shaft sleeve; 11. a second cylinder; 12. a U-shaped bolt; 13. a K-type lock nut; 14. a push rod; 15. a first lead screw; 16. a second lead screw; 17. a first piston; 18. a ball bearing; 19. 40 nuts; 20. a second piston; 21. a first corner contact bearing; 22. a guide post; 23. a rear flange; 24. A second angular contact bearing; 25. a square lock nut; 26. a synchronizing wheel; 27. a stopper; 28. A third piston; 29. a guide block; 30. a rotating shaft; 31. a needle bearing; 32. and a bearing cover plate.

Detailed Description

Because the stroke of single-stage servo electronic jar is short, can't satisfy the demand gradually to some big stroke operations and the relatively narrow and small environment of mounted position, in order to solve above-mentioned problem, the utility model provides a novel multistage servo electronic jar, it has the double-stroke, compares general multistage servo electronic jar, and thrust is bigger, and position location is more accurate.

The present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-3, the multistage servo electric cylinder includes a base 3, a servo motor 2 disposed on the base 3, a first cylinder 1 and a cover plate 4, and further includes a second cylinder 11 disposed in the first cylinder 1, a push rod 14 disposed in the second cylinder 11, a first lead screw 15 disposed in the push rod 14 and a second lead screw 16 disposed in the first lead screw 15, the first lead screw 15 and the second lead screw 16 are slidably connected, and are nested with each other, wherein an origin switch 8, a front limit switch 6 and a rear limit switch 7 are disposed outside the first cylinder 1, a guide block 29, a rotating shaft 30, a needle bearing 31 and a bearing cover plate 32 are disposed at an end of the second lead screw 16, and in order to enhance a load strength of the support structure, a first piston 17 is disposed between the second cylinder 11 and the push rod 14, a first angular contact bearing 21 and a second piston 20 are arranged between the first cylinder body 1 and the first screw rod 15, in order to enhance the transmission effect of the structure, a nut 19 and a ball bearing 18 are arranged between the second cylinder body 11 and the first screw rod 15 at 40, the effect of multi-stage transmission can be achieved through the first screw rod 15 and the second screw rod 16, and the stroke of the servo electric cylinder is improved.

Next, the above-mentioned structure will be described separately, the first cylinder 1 and the second cylinder 11 are connected by nuts, the first cylinder 1 is fixed on the base 3 by nuts, the front end of the first cylinder 1 is provided with the front flange 9 and the shaft sleeve 10, the shaft sleeve 10 is fixedly connected with the front flange 9, the rear flange 23 is arranged between the first cylinder 1 and the base 3, and the front flange 9 and the rear flange 23 are used for enhancing the sealing performance of the structure; a K-shaped locking nut 13 and a third piston 28 are arranged between the first cylinder 1 and the second screw rod 16, the K-shaped locking nut 13 and the third piston 28 are arranged between the first angular contact bearing 21 and the rear flange 23, the third piston 28 is arranged between the K-shaped locking nut 13 and the rear flange 23, a second angular contact bearing 24 is further arranged on the second screw rod 16, the second angular contact bearing 24 is arranged between the rear flange 23 and the second screw rod 16, a square locking nut 25 is further arranged between the second angular contact bearing 24 and the base 3, in order to strengthen the connection between the cylinders, a shaft sleeve 10 is arranged at the end part of the second cylinder 11, the guide block 29 is connected with the end part of the second screw rod 16, a bearing cover plate 32 is fixed on the guide block 29 and fixes a needle bearing 31 in the guide block 29, a plurality of rotating shafts 30 are arranged and are distributed on the guide block 29 at equal intervals, for increasing the slidability between the first lead screw 15 and the second lead screw 16 and for ensuring the accuracy of the linearly moved position.

In order to ensure the displacement accuracy of the first lead screw 15 and the second lead screw 16, the front limit switch 6 is arranged at the front end of the first cylinder body 1, the rear limit switch 7 and the original point switch 8 are both arranged at the rear end of the first cylinder body 1, wherein the rear limit switch 7 is arranged between the front limit switch 6 and the original point switch 8, the original point switch 8 is close to the rear limit switch 7 to play a role in displacement limitation, and a U-shaped bolt 12 is arranged at the end part of the push rod 14 and is used for being connected with a workpiece.

The transmission power of the device is provided by a servo motor 2, synchronizing wheels 26 are respectively arranged on the servo motor 2 and a second screw rod 16, the two synchronizing wheels 26 are connected through belt transmission, the servo motor 2 drives the second screw rod 16 to rotate through the synchronizing wheels 26, the second screw rod 16 drives a push rod 14 to stretch when rotating, when the second screw rod 16 stretches to reach the limit, due to the limitation of the position, the first screw rod 15 can be driven to stretch, the push rod 14 can be driven to move when the first screw rod 15 stretches, thereby completing the multi-stage transmission, in order to strengthen the connection between the base 3 and the servo motor 2, a stop block 27 is arranged on the outer side of the base 3, the servo motor 2 is fixedly connected with the stop block 27, a guide post 22 is arranged at the middle position between the base 3 and the cover plate 4, the lifting mechanism is used for fixing the cover plate 4, and a pin shaft plate 5 is further arranged on the outer side of the cover plate 4 and used for lifting the servo electric cylinder.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a novel multistage servo electric cylinder, includes base (3) and sets up servo motor (2), first cylinder body (1) and apron (4) on base (3), its characterized in that, it still includes second cylinder body (11) that sets up in first cylinder body (1), set up push rod (14) in second cylinder body (11), set up first lead screw (15) in push rod (14) and set up second lead screw (16) in first lead screw (15), the outside of first cylinder body (1) is provided with origin switch (8), preceding limit switch (6) and back limit switch (7), the tip of second lead screw (16) is provided with guide block (29), pivot (30), bearing (31) and bearing apron (32), second cylinder body (11) with be provided with first piston (17) between push rod (14), second cylinder body (11) with be provided with between first lead screw (15) 40 nut (19) and ball A bearing (18), a first angular contact bearing (21) and a second piston (20) are arranged between the first cylinder (1) and the first screw rod (15).

2. A novel multistage servo electric cylinder as claimed in claim 1, characterized in that the front limit switch (6) is arranged at the front end of the first cylinder (1), the rear limit switch (7) and the origin switch (8) are both arranged at the rear end of the first cylinder (1), wherein the rear limit switch (7) is located between the front limit switch (6) and the origin switch (8), and the origin switch (8) is next to the rear limit switch (7).

3. The novel multistage servo electric cylinder as recited in claim 1, characterized in that the guide block (29) is connected with the end of the second lead screw (16), the bearing cover plate (32) is fixed on the guide block (29), and the needle roller bearing (31) is fixed inside the guide block (29), and the rotating shaft (30) is provided in plurality and distributed on the guide block (29) at equal intervals.

4. A novel multistage servo electric cylinder as claimed in claim 1, characterized in that the first cylinder (1) and the second cylinder (11) are connected through a nut, the first cylinder (1) is fixed on the base (3) through a nut, the end of the second cylinder (11) is provided with a shaft sleeve (10), and the end of the push rod (14) is provided with a U-shaped bolt (12).

5. A novel multistage servo electric cylinder as claimed in claim 1, characterized in that the front end of the first cylinder body (1) is provided with a front flange (9) and a shaft sleeve (10), the shaft sleeve (10) is fixedly connected with the front flange (9), and a rear flange (23) is arranged between the first cylinder body (1) and the base (3).

6. A novel multistage servo electric cylinder as claimed in claim 5, characterized in that a K-type lock nut (13) and a third piston (28) are arranged between the first cylinder block (1) and the second screw (16), the K-type lock nut (13) and the third piston (28) are both arranged between the first angular contact bearing (21) and the rear flange (23), wherein the third piston (28) is arranged between the K-type lock nut (13) and the rear flange (23).

7. The novel multistage servo electric cylinder as recited in claim 5, characterized in that a second angular contact bearing (24) is further disposed on the second lead screw (16), the second angular contact bearing (24) is located between the rear flange (23) and the second lead screw (16), and a square lock nut (25) is further disposed between the second angular contact bearing (24) and the base (3).

8. The novel multistage servo electric cylinder as claimed in claim 1, characterized in that the servo motor (2) and the second screw (16) are respectively provided with a synchronous wheel (26), and the two synchronous wheels (26) are connected through belt transmission.

9. The novel multistage servo electric cylinder as claimed in claim 1, characterized in that a guide post (22) is arranged at the middle position between the base (3) and the cover plate (4), a pin shaft plate (5) is arranged on the outer side of the cover plate (4), a stop block (27) is arranged on the outer side of the base (3), and the servo motor (2) is fixedly connected with the stop block (27).

10. A new multistage servo electric cylinder according to claim 1, characterized in that said first screw (15) and said second screw (16) are slidingly connected.