High-precision servo electric cylinder with internally integrated pressure sensor

Abstract

This utility model discloses a high-precision servo electric cylinder with an integrated pressure sensor, comprising a cylinder body, a copper bushing disposed on one side of the cylinder body, a lead screw disposed within the cylinder body, a push rod disposed at one end of the lead screw, a bearing seat disposed outside the lead screw, a front flange disposed on one side of the bearing seat, a pressure sensor disposed on one side of the front flange, a rear flange disposed on one side of the pressure sensor, a base plate disposed on one side of the rear flange, a coupling disposed on one side of the lead screw, and a reducer disposed on one side of the coupling. The base plate is fixedly connected to the cylinder body, the push rod is connected to the lead screw and disposed within the cylinder body, one end of the coupling is connected to the lead screw, and the other end of the coupling is connected to the reducer. The lead screw is installed inside the bearing seat, one end of the front flange is fixedly connected to the bearing seat, and the other end of the front flange is connected to the pressure sensor. The advantages are that the push rod is pistonless, the sensor is internally mounted, unaffected by external interference, and can be used in confined spaces or some special environmental conditions.

Description

Technical Field

[0001] This utility model relates to the field of servo electric cylinder technology, and in particular to a high-precision servo electric cylinder with an internally integrated pressure sensor. Background Technology

[0002] Servo electric cylinders are modular devices that integrate servo motors and lead screws, converting the rotational motion of the motor into linear motion. Existing electric cylinder push rods have pistons, which have certain problems with machining accuracy and their range cannot meet the requirements. Furthermore, existing pressure sensors are installed externally, making them unsuitable for use in special environments such as confined spaces or when the front end of the servo electric cylinder push rod needs to be exposed to high temperatures, high pressures, or corrosive liquids. In view of the above, it is necessary to improve the existing servo electric cylinder structure to adapt to the current needs of servo electric cylinder use. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a high-precision servo electric cylinder with an internally integrated pressure sensor, including a cylinder body, a copper bushing disposed on one side of the cylinder body, a lead screw disposed in the cylinder body, a push rod disposed at one end of the lead screw, a bearing seat disposed outside the lead screw, a front flange disposed on one side of the bearing seat, a pressure sensor disposed on one side of the front flange, a rear flange disposed on one side of the pressure sensor, a base plate disposed on one side of the rear flange, a coupling disposed on one side of the lead screw, and a reducer disposed on one side of the coupling. The base plate is fixedly connected to the cylinder body, the push rod is connected to the lead screw and disposed in the cylinder body, one end of the coupling is connected to the lead screw, and the other end of the coupling is connected to the reducer. The lead screw is installed in the bearing seat, one end of the front flange is fixedly connected to the bearing seat, the other end of the front flange is connected to the pressure sensor, one end of the rear flange is connected to the pressure sensor, the rear flange is fixedly installed on the base plate, and the push rod is housed in the copper bushing and slidably connected to it.

[0004] As a further supplement to this technical solution, a signal transmission line is also provided on the side of the pressure sensor that protrudes from the cylinder surface.

[0005] As a further supplement to this technical solution, the copper bushing is inlaid with graphite to reduce friction.

[0006] As a further supplement to this technical solution, the push rod is provided with a guide key on its side, and the cylinder body is provided with a groove corresponding to the position of the guide key, and the guide key is slidably installed in the groove.

[0007] As a further supplement to this technical solution, the cylinder body is also provided with a mounting plate on the side away from the reducer, and the copper bearing is mounted on the mounting plate and disposed in the cylinder body.

[0008] As a further supplement to this technical solution, the bearing housing is provided with an angular contact bearing.

[0009] Its advantages are that the push rod of this utility model is pistonless, the sensor is built-in, it is not affected by external interference, and it can be used in narrow spaces or some special environmental conditions. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model from a first angle; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; In the diagram, 1. Cylinder block; 2. Copper bushing; 3. Lead screw; 4. Push rod; 5. Bearing housing; 6. Pressure sensor; 7. Base plate; 8. Coupling; 9. Reducer; 10. Guide key; 11. Groove; 12. Mounting plate. Detailed Implementation

[0011] To facilitate a clearer understanding of this technical solution for those skilled in the art, the following will be described in conjunction with the appendix. Figure 1-2 The technical solution of this utility model is described in detail below: A high-precision servo electric cylinder with an integrated pressure sensor includes a cylinder body 1, a copper bushing 2 disposed on one side inside the cylinder body 1, a lead screw 3 disposed inside the cylinder body 1, a push rod 4 disposed at one end of the lead screw 3, a bearing seat 5 disposed outside the lead screw 3, a front flange disposed on one side of the bearing seat 5, a pressure sensor 6 disposed on one side of the front flange, a rear flange disposed on one side of the pressure sensor 6, a base plate 7 disposed on one side of the rear flange, a coupling 8 disposed on one side of the lead screw 3, and a reducer 9 disposed on one side of the coupling 8. The base plate 7 is fixedly connected to the cylinder body 1. The push rod 4 is connected to the lead screw 3 and disposed inside the cylinder body 1. One end of the coupling 8 is connected to the lead screw 3, and the other end of the coupling 8 is connected to the reducer 9. The lead screw 3 is installed inside the bearing seat 5. One end of the front flange is fixedly connected to the bearing seat 5, and the other end of the front flange is connected to the pressure sensor 6. One end of the rear flange is connected to the pressure sensor 6, and the rear flange is fixedly mounted on the base plate 7. The push rod 4 is housed within the copper bushing 2 and slidably connected to it. A mounting plate 12 is also provided on the side of the cylinder body 1 away from the reducer 9. The copper bearing is mounted on the mounting plate 12 and located within the cylinder body 1. An angular contact bearing is provided within the bearing seat 5. The reducer 9 controls the rotation of the lead screw 3, thereby converting linear rotational motion into linear motion, driving the push rod 4 to move axially. In this case, the push rod 4 is connected to the lead screw 3. The push rod 4 is pistonless, and the pressure sensor 6 is built-in and fixed in position. This allows it to be used in confined spaces or in special environments where the push rod 4 needs to be exposed to high temperatures, high pressures, or corrosive liquids. The built-in sensor provides accurate pressure values, is unaffected by external interference, and maintains a constant position, effectively avoiding the inconvenience of external sensor wiring and the wear caused by the cable dragging during operation. Furthermore, the pressure sensor 6 is made of alloy steel, which improves its service life and safety.

[0012] Among them, the pressure sensor 6 has a signal transmission line protruding from the surface of the cylinder 1 on its side to output a signal.

[0013] Among them, the copper bushing 2 is inlaid with graphite to reduce friction and improve the service life of the push rod 4.

[0014] The push rod 4 has a guide key 10 on its side, and the cylinder body 1 has a groove 11 corresponding to the guide key 10. The guide key 10 is slidably installed in the groove 11. The guide key 10 and the groove 11 are matched to prevent the push rod 4 from rotating. The lead screw 3 is a ball screw 3, which is heavy-duty, has a long service life, and has a large output force.

[0015] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A high-precision servo electric cylinder with an integrated pressure sensor, characterized in that, Includes a cylinder body (1), a copper bushing (2) disposed on one side inside the cylinder body (1), a lead screw (3) disposed inside the cylinder body (1), a push rod (4) disposed at one end of the lead screw (3), a bearing seat (5) disposed outside the lead screw (3), a front flange disposed on one side of the bearing seat (5), a pressure sensor (6) disposed on one side of the front flange, a rear flange disposed on one side of the pressure sensor (6), a base plate (7) disposed on one side of the rear flange, a coupling (8) disposed on one side of the lead screw (3), and a reducer (9) disposed on one side of the coupling (8). The base plate (7) and the cylinder body (1) The push rod (4) is fixedly connected to the lead screw (3) and is located inside the cylinder body (1). One end of the coupling (8) is connected to the lead screw (3), and the other end of the coupling (8) is connected to the reducer (9). The lead screw (3) is installed inside the bearing seat (5). One end of the front flange is fixedly connected to the bearing seat (5), and the other end of the front flange is connected to the pressure sensor (6). One end of the rear flange is connected to the pressure sensor (6), and the rear flange is fixedly installed on the base plate (7). The push rod (4) is housed in the copper bushing (2) and is slidably connected to it.

2. A high-precision servo electric cylinder with an internally integrated pressure sensor according to claim 1, characterized in that, The pressure sensor (6) also has a signal transmission line protruding from the surface of the cylinder (1) on its side.

3. A high-precision servo electric cylinder with an internally integrated pressure sensor according to claim 2, characterized in that, The copper bushing (2) is inlaid with graphite to reduce friction.

4. A high-precision servo electric cylinder with an internally integrated pressure sensor according to claim 1, characterized in that, The push rod (4) has a guide key (10) on its side, and the cylinder (1) has a groove (11) corresponding to the guide key (10) in its interior. The guide key (10) is slidably installed in the groove (11).

5. A high-precision servo electric cylinder with an internally integrated pressure sensor according to claim 1, characterized in that, The cylinder body (1) is also provided with a mounting plate (12) on the side away from the reducer (9), and the copper bearing is mounted on the mounting plate (12) and located inside the cylinder body (1).

6. A high-precision servo electric cylinder with an internally integrated pressure sensor according to claim 1, characterized in that, The bearing housing (5) is equipped with an angular contact bearing.

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