A servo electric cylinder with a guide structure

Abstract

The utility model discloses a servo electric cylinder with a guide structure, including a mounting seat and a guide slide rod, a cylinder barrel is mounted on the mounting seat, a lead screw is mounted in the cylinder barrel, a ball nut is threadedly mounted on the lead screw, a mounting plate is mounted on the ball nut, the mounting plate is connected to one end of a telescopic rod slidably mounted in the cylinder barrel, a connecting plate is mounted on the ball nut, a guide rod is mounted in the cylinder barrel, a slider is mounted on one end of the connecting plate, a slide groove is provided on the inner wall of the cylinder barrel, and the slider is slidably connected to the slide groove. The utility model ensures that the servo electric cylinder will not deviate in direction during the lifting operation, improves the accuracy of the servo electric cylinder when moving by installing a guide structure, and avoids the problem that external dust and impurities easily enter the interior of the servo electric cylinder from the intersection of the cylinder barrel and the telescopic rod, thereby affecting the operation of the servo electric cylinder.

Description

Technical Field

[0001] The utility model relates to the relevant field of servo electric cylinders with a guide structure, in particular to a servo electric cylinder with a guide structure. Background Art

[0002] The servo electric cylinder is a modular product that integrates the servo motor and the lead screw. It converts the rotational motion of the servo motor into linear motion. At the same time, it converts the best advantages of the servo motor - precise speed control, precise rotation speed control, and precise torque control - into precise speed control, precise position control, and precise thrust control, thereby realizing a series of high-precision linear motion products.

[0003] The existing device will have the following problems when in use: the servo cylinder cannot be guaranteed not to deviate from the direction during the lifting operation, which affects the accuracy of the servo cylinder's movement; external dust and impurities can easily enter the interior of the servo cylinder, affecting the operation of the servo cylinder. Utility Model Content

[0004] The purpose of the utility model is to provide a servo electric cylinder with a guide structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a servo electric cylinder with a guide structure, comprising a mounting seat and a guide slide rod, a cylinder is mounted on the mounting seat, a screw is mounted in the cylinder, a ball nut is threadedly mounted on the screw, a mounting plate is mounted on the ball nut, the mounting plate is connected to one end of a telescopic rod slidably mounted in the cylinder, a connecting plate is mounted on the ball nut, a guide rod is mounted in the cylinder, the guide rod is slidably connected to a hole opened on the connecting plate, a sliding block is mounted on one end of the connecting plate, and a sliding block is opened on the inner wall of the cylinder The sliding block is slidably connected with the sliding groove. When the lead screw rotates, the ball nut threadedly mounted thereon moves, and cooperates with the fixedly connected mounting plate, thereby driving the telescopic rod to move in the cylinder. The connecting plate installed on the cooperated ball nut is slidably connected with the guide rod installed in the cylinder, and the sliding block installed at one end of the connecting plate is slidably connected with the sliding groove opened on the inner wall of the cylinder, and the guide slideway opened on the cylinder is slidably connected with the guide slide rod installed on the connecting block, which ensures that the servo electric cylinder will not deviate in direction during the lifting operation, and improves the accuracy of the servo electric cylinder when moving through the installed guide structure.

[0006] In a further embodiment, a connecting block is installed at one end of the telescopic rod, and a corrugated elastic tube is installed between the connecting block and the port of the cylinder, and the corrugated elastic tube is sleeved on the outside of the telescopic rod. When the telescopic rod drives the connecting block to telescope, the corrugated elastic tube installed between the connecting block and the port of the cylinder expands and contracts, and the corrugated elastic tube is sleeved on the outside of the telescopic rod, so as to prevent external dust and impurities from easily entering the interior of the servo electric cylinder from the junction of the cylinder and the telescopic rod, thereby affecting the operation of the servo electric cylinder.

[0007] In a further embodiment, a guide slide is provided on the cylinder barrel, and a guide slide rod is installed on the connecting block. The guide slide rod is slidably connected to the guide slide. When the telescopic rod drives the connecting block to move telescopically, the guide slide provided on the cylinder barrel is slidably connected to the guide slide rod installed on the connecting block, thereby improving the accuracy of the servo electric cylinder when moving.

[0008] In a further embodiment, a servo motor is installed on the mounting seat, and the power shaft end of the servo motor is connected to the driving gear in the mounting seat. A transmission gear and a passive gear are installed in the mounting seat, and the driving gear is meshed with the transmission gear, and the transmission gear is meshed with the passive gear. The passive gear is connected to one end of the lead screw. The servo motor installed on the mounting seat is started, so that the driving gear connected to the power shaft end of the servo motor rotates. Because the driving gear is meshed with the transmission gear, and then the transmission gear is meshed with the passive gear, the lead screw rotates. When the lead screw rotates, the ball nut threadedly mounted thereon moves, so that the telescopic rod telescopes and moves.

[0009] In a further embodiment, a sliding cavity is provided on the telescopic rod, and the screw rod is slidably connected to the sliding cavity provided on the telescopic rod, and the sliding cavity provided on the telescopic rod prevents the screw rod from hindering the movement of the telescopic rod.

[0010] In a further embodiment, the guide slide bars are provided in four groups, and a circuit controller is installed on the servo motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. It ensures that the servo electric cylinder will not deviate from the direction during the lifting operation, and improves the accuracy of the servo electric cylinder's movement through the installed guide structure.

[0013] 2. Prevent external dust and impurities from easily entering the servo electric cylinder from the junction of the cylinder barrel and the telescopic rod, which may affect the operation of the servo electric cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the guide structure of the utility model;

[0017] Figure 4 It is an enlarged schematic diagram of the dustproof structure of the utility model.

[0018] In the figure: 1. mounting base; 2. servo motor; 3. driving gear; 4. transmission gear; 5. passive gear; 6. lead screw; 7. ball nut; 8. mounting plate; 9. telescopic rod; 10. connecting block; 11. corrugated elastic tube; 12. cylinder; 13. connecting plate; 14. guide rod; 15. slide groove; 16. slider; 17. guide slide rod; 18. guide slideway. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-4 A servo electric cylinder with a guide structure includes a mounting seat 1 and a guide slide rod 17, a cylinder 12 is mounted on the mounting seat 1, a screw rod 6 is mounted in the cylinder 12, a ball nut 7 is threadedly mounted on the screw rod 6, a mounting plate 8 is mounted on the ball nut 7, the mounting plate 8 is connected to one end of a telescopic rod 9 slidably mounted in the cylinder 12, a connecting plate 13 is mounted on the ball nut 7, a guide rod 14 is mounted in the cylinder 12, the guide rod 14 is slidably connected to a hole opened in the connecting plate 13, a slider 16 is mounted on one end of the connecting plate 13, a slide groove 15 is opened on the inner wall of the cylinder 12, and the slider 16 is connected to the connecting plate 13. The slide groove 15 is slidably connected, and when the lead screw 6 rotates, the ball nut 7 threadedly mounted thereon moves, and cooperates with the fixedly connected mounting plate 8, thereby driving the telescopic rod 9 to move in the cylinder 12, and the connecting plate 13 installed on the cooperated ball nut 7 is slidably connected with the guide rod 14 installed in the cylinder 12, and the slider 16 installed at one end of the connecting plate 13 is slidably connected with the slide groove 15 opened on the inner wall of the cylinder 12, and the guide slide 18 opened on the cylinder 12 is slidably connected with the guide slide rod 17 installed on the connecting block 10, which ensures that the servo electric cylinder will not deviate in direction during the lifting operation, and the accuracy of the servo electric cylinder during movement is improved by the installed guide structure.

[0021] See also Figure 1-4A connecting block 10 is installed at one end of the telescopic rod 9, and a corrugated elastic tube 11 is installed between the connecting block 10 and the port of the cylinder 12. The corrugated elastic tube 11 is sleeved on the outside of the telescopic rod 9. When the telescopic rod 9 drives the connecting block 10 to move telescopically, the corrugated elastic tube 11 installed between the connecting block 10 and the port of the cylinder 12 is extended and retracted. The corrugated elastic tube 11 is sleeved on the outside of the telescopic rod 9 to prevent external dust and impurities from easily entering the servo electric cylinder from the intersection of the cylinder 12 and the telescopic rod 9, thereby affecting the operation of the servo electric cylinder. A guide slide 18 is provided on the cylinder 12, and a guide slide bar 17 is installed on the connecting block 10. The guide slide bar 17 is slidably connected to the guide slide 18. When the telescopic rod 9 drives the connecting block 10 to move telescopically, the guide slide 18 provided on the cylinder 12 is slidably connected to the guide slide bar 17 installed on the connecting block 10, thereby improving the accuracy of the servo electric cylinder when moving.

[0022] See also Figure 1-4 A servo motor 2 is installed on the mounting seat 1, and the power shaft end of the servo motor 2 is connected to the driving gear 3 in the mounting seat 1. A transmission gear 4 and a passive gear 5 are installed in the mounting seat 1. The driving gear 3 is meshed with the transmission gear 4, and the transmission gear 4 is meshed with the passive gear 5. The passive gear 5 is connected to one end of the screw rod 6. The servo motor 2 installed on the dynamic mounting seat 1 makes the driving gear 3 connected and installed on the power shaft end of the servo motor 2 rotate, because the driving gear 3 is meshed with the transmission gear 4, and then the transmission gear 4 is meshed with the passive gear 5, so that the screw rod 6 rotates. When the screw rod 6 rotates, the ball nut 7 threadedly installed thereon moves, so that the telescopic rod 9 telescopically moves. A sliding cavity is opened on the telescopic rod 9, and the screw rod 6 is slidably connected to the sliding cavity opened on the telescopic rod 9. The sliding cavity opened on the telescopic rod 9 prevents the screw rod 6 from hindering the movement of the telescopic rod 9. Four groups of guide slide rods 17 are provided, and a circuit controller is installed on the servo motor 2.

[0023] Working principle: Start the servo motor 2 installed on the mounting base 1, so that the driving gear 3 connected to the power shaft end of the servo motor 2 rotates, because the driving gear 3 is meshed with the transmission gear 4, and then the transmission gear 4 is meshed with the passive gear 5, so that the screw rod 6 rotates. When the screw rod 6 rotates, the ball nut 7 threadedly installed on it moves, and cooperates with the fixedly connected mounting plate 8, thereby driving the telescopic rod 9 to move in the cylinder 12, and cooperates with the connecting plate 13 installed on the ball nut 7 to slide with the guide rod 14 installed in the cylinder 12, and the slider 16 installed at one end of the connecting plate 13 and the slide groove opened on the inner wall of the cylinder 12 15 is slidably connected, and the guide slide 18 provided on the cylinder 12 is slidably connected with the guide slide rod 17 installed on the connecting block 10, which ensures that the servo electric cylinder will not deviate in direction during the lifting operation. The installed guide structure improves the accuracy of the servo electric cylinder when moving. When the telescopic rod 9 drives the connecting block 10 to move telescopically, the corrugated elastic tube 11 installed between the connecting block 10 and the end of the cylinder 12 is telescopic. The corrugated elastic tube 11 is sleeved on the outside of the telescopic rod 9 to prevent external dust and impurities from easily entering the inside of the servo electric cylinder from the intersection of the cylinder 12 and the telescopic rod 9, thereby affecting the operation of the servo electric cylinder.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A servo electric cylinder with a guide structure, comprising a mounting seat (1) and a guide slide bar (17), characterized in that: A cylinder (12) is mounted on the mounting seat (1), a screw rod (6) is mounted in the cylinder (12), a ball nut (7) is threadedly mounted on the screw rod (6), a mounting plate (8) is mounted on the ball nut (7), the mounting plate (8) is connected to one end of a telescopic rod (9) slidably mounted in the cylinder (12), a connecting plate (13) is mounted on the ball nut (7), a guide rod (14) is mounted in the cylinder (12), the guide rod (14) is slidably connected to a hole provided in the connecting plate (13), a slider (16) is mounted on one end of the connecting plate (13), a slide groove (15) is provided on the inner wall of the cylinder (12), and the slider (16) is slidably connected to the slide groove (15).

2. The servo electric cylinder with a guide structure according to claim 1, characterized in that: A connecting block (10) is installed at one end of the telescopic rod (9), a corrugated elastic tube (11) is installed between the connecting block (10) and the port of the cylinder (12), and the corrugated elastic tube (11) is sleeved outside the telescopic rod (9).

3. The servo electric cylinder with a guide structure according to claim 2, characterized in that: The cylinder barrel (12) is provided with a guide slideway (18), the connecting block (10) is provided with a guide slide bar (17), and the guide slide bar (17) is slidably connected to the guide slideway (18).

4. The servo electric cylinder with a guide structure according to claim 1, characterized in that: A servo motor (2) is mounted on the mounting seat (1); a power shaft end of the servo motor (2) is connected to a driving gear (3) in the mounting seat (1); a transmission gear (4) and a passive gear (5) are mounted in the mounting seat (1); the driving gear (3) is meshed with the transmission gear (4); the transmission gear (4) is meshed with the passive gear (5); and the passive gear (5) is connected to one end of a screw rod (6).

5. The servo electric cylinder with a guide structure according to claim 1, characterized in that: The telescopic rod (9) is provided with a sliding cavity, and the screw rod (6) is slidably connected to the sliding cavity provided on the telescopic rod (9).

6. The servo electric cylinder with a guide structure according to claim 4, characterized in that: The guide slide bars (17) are provided in four groups, and a circuit controller is installed on the servo motor (2).

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