Six-axis electric cylinder device

Abstract

The utility model belongs to the technical field of electric cylinders, and particularly relates to a six-axis electric cylinder device which comprises a first fixing seat, a servo motor is fixed in the first fixing seat, a second fixing seat is fixed on the left side of the servo motor, and the left side of the second fixing seat is fixedly connected with the left side of the inner wall of the first fixing seat. A coupler is fixed to the output end of the servo motor, an outer cylinder is fixed to the left side of the first fixing base, a third fixing base is fixed to the right end of the outer wall of the outer cylinder, and a fourth fixing base is fixed to the left end of the outer wall of the outer cylinder. The electric cylinder can move more smoothly, the four thick pull rods are arranged, the electric cylinder can be better stressed, use is safer, the angular contact bearing is fixed through the first locking nut and the second locking nut, the service life of the bearing is longer, and noise interference generated in the use process is effectively reduced due to the arrangement of the noise reduction cotton.

Description

Technical Field

[0001] This utility model relates to the field of electric cylinder technology, specifically a six-axis electric cylinder device. Background Technology

[0002] Electric cylinders are products specifically designed for continuous motion, low to high loads, and can be used multiple times during their service life. These products have extremely high positioning accuracy and controllability, and can achieve precise motion control under loads ranging from several kilograms to 50 tons.

[0003] However, existing electric cylinder devices still have the following technical problems in use:

[0004] The current electric cylinders suffer from uneven force distribution, which can easily lead to uneven movement after prolonged use, affecting the lifespan of the electric cylinders. In addition, the electric cylinders have poor noise reduction effects, resulting in relatively high noise levels during use.

[0005] Therefore, a six-axis electric cylinder device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this invention is to provide a six-axis electric cylinder device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a six-axis electric cylinder device, including a first fixed base, a servo motor fixed inside the first fixed base, a second fixed base fixed to the left side of the servo motor, the left side of the second fixed base being fixedly connected to the left side of the inner wall of the first fixed base, a coupling fixed to the output end of the servo motor, an outer cylinder fixed to the left side of the first fixed base, a third fixed base fixed to the right end of the outer wall of the outer cylinder, a fourth fixed base fixed to the left end of the outer wall of the outer cylinder, and a connecting rod evenly arranged between the third fixed base and the fourth fixed base;

[0008] A lead screw is horizontally arranged inside the outer cylinder. A symmetrical angular contact bearing is fixedly sleeved on the right end of the lead screw wall. The right end of the lead screw is fixedly connected to the output end of the servo motor through a coupling. A first locking nut is fixed on the right end of the lead screw located on the angular contact bearing. A second locking nut is fixed on the left end of the lead screw located on the angular contact bearing.

[0009] The lead screw has an external thread with a lead screw nut. A bushing is fixed to the right side of the lead screw nut. The outer wall of the bushing is slidably connected to the inner wall of the outer cylinder. A push tube is fixed to the left side of the lead screw nut. The push tube is sleeved on the outside of the lead screw and its left end is slidably connected to the fourth fixed seat.

[0010] Connectors are fixed to the left end of the push tube and the right side of the first fixed seat. A universal joint is fixed to the side wall of the connector, and sound-absorbing cotton is fixed to the outside of the lead screw nut.

[0011] Preferably, a cushioning rubber is fixed on the left side of the second locking nut.

[0012] Preferably, a hard oil seal is fixed to the inner wall of the fourth fixing seat.

[0013] Preferably, the number of the connecting rods arranged evenly is four.

[0014] Preferably, a wear-resistant bushing is fixed to the left end inside the outer cylinder, and the outer wall of the push tube is slidably connected to the inner wall of the wear-resistant bushing.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Universal joints are used at both ends of this electric cylinder, which makes the force distribution better and more even, suitable for large-amplitude movements, and the movement is smoother. Four thick tie rods are set to make the electric cylinder more force-bearing and safer to use. The angular contact bearing is fixed by the first and second locking nuts, which makes the bearing life longer. In addition, sound-absorbing cotton is set to effectively reduce noise interference generated during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the front structure;

[0019] Figure 3 A schematic diagram of the left-side structure of the fourth fixed seat and connecting rod;

[0020] Figure 4 for Figure 2 A cross-sectional structural diagram.

[0021] In the diagram: 1 First fixed seat, 2 Servo motor, 3 Second fixed seat, 4 Coupling, 5 Outer cylinder, 6 Third fixed seat, 7 Fourth fixed seat, 8 Connecting rod, 9 Lead screw, 10 Angular contact bearing, 11 First locking nut, 12 Second locking nut, 13 Lead screw nut, 14 Bushing, 15 Push tube, 16 Connector, 17 Universal joint, 18 Buffer rubber, 19 Noise-absorbing cotton, 20 Wear-resistant bushing, 21 Hard oil seal. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] A six-axis electric cylinder device includes a first fixed base 1, a servo motor 2 fixed inside the first fixed base 1, a second fixed base 3 fixed to the left side of the servo motor 2, and the servo motor 2 being fixedly connected to the inner wall of the first fixed base 1 through the second fixed base 3 to ensure the stability of the servo motor 2 during operation and prevent interference from the vibration of the servo motor 2. The left side of the second fixed base 3 is fixedly connected to the left side of the inner wall of the first fixed base 1. A coupling 4 is fixed to the output end of the servo motor 2, and the function of the coupling 4 is to fix the right end of the lead screw 9 to the output end of the servo motor 2. An outer cylinder 5 is fixed to the left side of the first fixed base 1, a third fixed base 6 is fixed to the right end of the outer wall of the outer cylinder 5, and a fourth fixed base 7 is fixed to the left end of the outer wall of the outer cylinder 5. A connecting rod 8 evenly arranged is fixed between the third fixed base 6 and the fourth fixed base 7. The connecting rod 8 can ensure that the electric cylinder has better overall force distribution and is safer during use.

[0027] A lead screw 9 is horizontally arranged inside the outer cylinder 5. A symmetrical angular contact bearing 10 is fixedly sleeved on the right end of the lead screw 9. The lead screw 9 can rotate inside the outer cylinder 5 through the angular contact bearing 10, which improves stability. The right end of the lead screw 9 is fixedly connected to the output end of the servo motor 2 through the coupling 4. A first locking nut 11 is fixed on the right end of the lead screw 9 located on the angular contact bearing 10, and a second locking nut 12 is fixed on the left end of the lead screw 9 located on the angular contact bearing 10. The first locking nut 11 and the second locking nut 12 are used to limit the position of the angular contact bearing 10 to prevent position movement during use.

[0028] The lead screw 9 has an external threaded lead screw nut 13. A bushing 14 is fixed to the right side of the lead screw nut 13. The outer wall of the bushing 14 is slidably connected to the inner wall of the outer cylinder 5. This ensures that when the lead screw 9 rotates, the bushing 14 can move to the left without rotating with the lead screw 9 due to the threaded connection between them. A push tube 15 is fixed to the left side of the lead screw nut 13. The push tube 15 is sleeved on the outside of the lead screw 9 and its left end is slidably connected to the fourth fixed seat 7.

[0029] Connectors 16 are fixed to the left end of the push tube 15 and the right side of the first fixed seat 1. Universal joints 17 are fixed to the side wall of connectors 16. By setting universal joints 17, the electric cylinder can be ensured to be subjected to more even force during use. Even with large-scale movement, the electric cylinder will not be pulled, ensuring its smooth movement. Sound-absorbing cotton 19 is fixed to the outside of the lead screw nut 13. By setting sound-absorbing cotton 19, the transmission of noise is prevented, making the noise less during operation.

[0030] A buffer rubber 18 is fixed on the left side of the second locking nut 12. By setting the buffer rubber 18, when the lead screw nut 13 and bushing 14 move to the right, the buffer rubber 18 can effectively buffer them and prevent damage to the lead screw nut 13 and bushing 14.

[0031] The inner wall of the fourth fixing seat 7 is fixed with a hard oil seal 21 to increase the sealing performance and prevent oil leakage.

[0032] The number of evenly distributed connecting rods 8 is four, and they are evenly distributed to ensure force balance.

[0033] A wear-resistant bushing 20 is fixed to the left end inside the outer cylinder 5. The outer wall of the push tube 15 is slidably connected to the inner wall of the wear-resistant bushing 20 in order to prevent the outer cylinder 5 from being damaged due to long-term wear between the push tube 15 and the outer cylinder 5.

[0034] Working principle:

[0035] Start the servo motor 2. The servo motor 2 drives the lead screw 9 to rotate through the coupling 4. The lead screw 9 drives the external lead screw nut 13 to move. Under the limiting action of the bushing 14, the lead screw nut 13 moves to the left end. The lead screw nut 13 drives the push tube 15 at the left end to move to the left end, thereby realizing the telescopic movement. When the push tube 15 moves to the leftmost end, the servo motor 2 reverses and the push tube 15 moves to the right end, thereby realizing the reciprocating telescopic movement of the push tube 15.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A six-axis electric cylinder device comprising a first fixed seat (1), characterized in that, The inside of the first fixed seat (1) is fixed with a servo motor (2), the left side of the servo motor (2) is fixed with a second fixed seat (3), the left side of the second fixed seat (3) is fixedly connected with the left side of the inner wall of the first fixed seat (1), the output end of the servo motor (2) is fixed with a shaft coupling (4), the left side of the first fixed seat (1) is fixed with an outer cylinder (5), the right end of the outer wall of the outer cylinder (5) is fixed with a third fixed seat (6), the left end of the outer wall of the outer cylinder (5) is fixed with a fourth fixed seat (7), the third fixed seat (6) and the fourth fixed seat (7) are commonly fixed with uniformly arranged connecting pull rods (8). The inside of the outer cylinder (5) is transversely provided with a lead screw (9), the right end of the rod wall of the lead screw (9) is fixedly sleeved with symmetrical angular contact bearings (10), the right end of the lead screw (9) is fixedly connected with the output end of the servo motor (2) through the shaft coupling (4), the outside of the lead screw (9) is fixed with a first locking nut (11) at the right end of the angular contact bearing (10), the outside of the lead screw (9) is fixed with a second locking nut (12) at the left end of the angular contact bearing (10). The outside of the lead screw (9) is threadedly provided with a lead screw nut (13), the right side of the lead screw nut (13) is fixedly provided with a bushing (14), the outer wall of the bushing (14) is slidably connected with the inner wall of the outer cylinder (5), the left side of the lead screw nut (13) is fixedly provided with a push tube (15), the push tube (15) is sleeved on the outside of the lead screw (9) and the left end is slidably connected with the fourth fixed seat (7); The left end of the push tube (15) and the right side of the first fixed seat (1) are both fixedly provided with a connecting piece (16), the sidewall of the connecting piece (16) is fixedly provided with a universal joint (17), the outside of the lead screw nut (13) is fixedly provided with sound-absorbing cotton (19).

2. The six-axis electric cylinder device according to claim 1, characterized by: The left side of the second locking nut (12) is fixedly provided with a buffer rubber (18).

3. The six-axis electric cylinder apparatus according to claim 1, characterized by: The inner wall of the fourth fixed seat (7) is fixedly provided with a hard oil seal (21).

4. The six-axis electric cylinder apparatus according to claim 1, characterized by: The number of the uniformly arranged connecting pull rods (8) is four and they are uniformly arranged.

5. The six-axis electric cylinder apparatus according to claim 1, characterized by: The left end inside the outer cylinder (5) is fixedly provided with a wear-resistant shaft sleeve (20), the outer wall of the push tube (15) is slidably connected with the inner wall of the wear-resistant shaft sleeve (20). The left end inside the outer cylinder (5) is fixedly provided with a wear-resistant shaft sleeve (20), the outer wall of the push tube (15) is slidably connected with the inner wall of the wear-resistant shaft sleeve (20).

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