High-precision long-service-life servo electric cylinder

Abstract

The utility model discloses a high-precision long-life servo electric cylinder which comprises a fixed rail, limiting protection sliding frames are installed on the two sides of the fixed rail, sliding sleeve assemblies are installed on the surfaces of the limiting protection sliding frames, the limiting protection sliding frames are connected with a movable machine table through the sliding sleeve assemblies, a lead screw body is installed in the fixed rail, and a lead screw is installed in the lead screw body. The surface of the lead screw body is fixedly connected with the surface of the lower end of the movable machine table through a lead screw sliding block. According to the utility model, the servo motor is installed to drive and control the rotating wheel and the belt to realize stable transmission, so that the lead screw main body can be driven to drive the movable machine table above the lead screw sliding block to carry out stable sliding adjustment, and the two limiting protection sliding frame devices are arranged on the two sides of the lead screw main body in parallel at equal intervals; therefore, the movable machine table can be driven and controlled to slide and adjust more stably and safely, the problem of driving failure of the servo motor is effectively avoided, the service life of the whole servo electric cylinder driving device is prolonged, and the working precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to servo electric cylinder technical field, concretely is a high accuracy long life servo electric cylinder. BACKGROUND

[0002] Servo electric cylinder is the rotation motion of servo motor is converted into linear motion, can replace the place of hydraulic pressure and pneumatic, is the upgrading product of hydraulic pressure and pneumatic equipment, and is applied in experimental equipment, special equipment and military equipment, for example, high frequency vibration table, high frequency impact table, test table and wave generator experimental equipment, industrial automation production line, assembly line, coordinate machinery, lifting platform, numerical control machine tool, industry packaging machine and automobile electronic press loading machine and other special equipment, and radar support frame, hatch opening cylinder, vehicle body electric leveling mechanism, six degrees of freedom swing mechanism and track adjusting mechanism and other special military equipment.

[0003] The utility model discloses a kind of servo cylinders, including front end cover, shell, rear end cover and quick-change plug, the shell is provided with hollow motor, encoder, shaft coupling, first locking nut, planetary roller screw, second locking nut, output shaft and push cylinder, the hollow motor includes rotor shaft and stator, screw, fixed strip and magnetic steel sheet are provided on the rotor shaft, the utility model is connected with the output shaft screw thread by push cylinder one end, the servo cylinder structure relative to the servo cylinder of turn-back type, with Small installation volume, light weight, applicable to multiple installation layout, easy to form standard series, and screw thread connection structure is compact, facilitate installation and disassembly, reduce the manufacturing cost of servo cylinder, and magnetic steel sheet and fixed strip are pressed tightly, the installation mode structure is simple, only needs to install and disassemble screw, facilitate installation and disassembly.

[0004] In the prior art, when driving and controlling the sliding member, the sliding stability is poor, and the problem of shaking and deviation is prone to occur, which causes poor work precision and causes driving failure of the servo motor, so a high-precision long-life servo electric cylinder needs to be developed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-precision long-life servo electric cylinder, to solve the problem that the prior art in the background art is driven and controlled to sliding member, sliding stability is poor, and the problem of shaking and deviation is prone to occur, which causes poor work precision and causes driving failure of the servo motor.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: A high-precision long -life servo electric jar, fixed track is installed on both sides of the fixed track limit protection sliding frame, the surface of limit protection sliding frame is installed with sliding sleeve assembly, limit protection sliding frame is connected with mobile platform through sliding sleeve assembly, the inside of fixed track is installed with lead screw main part, the surface of lead screw main part is fixedly connected with the lower end surface of mobile platform through lead screw block.

[0007] Preferably, one side of the fixed track is installed with a limit baffle, and the other side of the fixed track is installed with a working machine box.

[0008] Preferably, a servo motor is installed below the fixed track, and an output end of the servo motor is connected with a driving wheel arranged in the working machine box through a rotating shaft.

[0009] Preferably, the surface of the driving wheel is connected with a driven wheel through a belt.

[0010] Preferably, the surface of the driven wheel is connected with the lead screw main part through a transmission shaft at the center.

[0011] Preferably, the mobile platform stably slides along the surfaces of the lead screw main part and the limit protection sliding frame.

[0012] Preferably, two limit protection sliding frames are arranged, the two limit protection sliding frames are fixedly connected with the limit baffle through nuts, and the limit protection sliding frames are arranged in parallel.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a servo motor drive control rotating wheel and belt stable transmission are installed to drive the lead screw main part to drive the mobile platform above the lead screw block to carry out stable sliding adjustment, and two limit protection sliding frame devices are arranged in parallel at the both sides of the lead screw main part at equal distances to drive and control the mobile platform to slide more stably and safely, thereby effectively avoiding the driving failure of the servo motor, and improving the service life and operation precision of the whole servo electric cylinder driving device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the bottom structure schematic view of the utility model;

[0017] Figure 3 It is the front view of the utility model;

[0018] Figure 4 It is the plan view of the utility model.

[0019] In the figure: 1, limit baffle; 2, sliding sleeve assembly; 3, limit protection sliding frame; 4, servo motor; 5, moving machine table; 6, fixed track; 7, operation machine box; 8, screw main body; 9, screw sliding block; 10, transmission shaft; 11, driven wheel; 12, belt; 13, driving wheel; 14, rotating shaft. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Please refer to Figures 1-4 An embodiment provided by the utility model: a high-precision long-service-life servo electric cylinder, including fixed track 6, limit protection sliding frame 3 is installed on both sides of fixed track 6, sliding sleeve assembly 2 is installed on the surface of limit protection sliding frame 3, moving machine table 5 is connected with limit protection sliding frame 3 through sliding sleeve assembly 2, screw main body 8 is installed in the inside of fixed track 6, and the lower end surface of moving machine table 5 is fixedly connected with screw main body 8 through screw sliding block 9 on the surface of screw main body 8.

[0022] Further, limit baffle 1 is installed on one side of fixed track 6, plays a limiting stop action, operation machine box 7 is installed on the other side of fixed track 6, and is used for wrapping protection to the rotating wheel driving device.

[0023] Further, servo motor 4 is installed below fixed track 6, the output end of servo motor 4 is connected with driving wheel 13 arranged in the inside of operation machine box 7 through rotating shaft 14, driven wheel 11 is connected with the surface of driving wheel 13 through belt 12, the surface center of driven wheel 11 is connected with screw main body 8 through transmission shaft 10, servo motor 4 is used for driving control driving wheel 13 to drive driven wheel 11 to be connected in transmission, thereby driving control screw main body 8 to rotate, and then screw sliding block 9 can be driven to control moving machine table 5 to slide along the surface of screw main body 8 horizontally.

[0024] Further, moving machine table 5 stably slides horizontally along the surface of screw main body 8 and limit protection sliding frame 3, and then moving machine table 5 can be driven to control more stable and safe sliding adjustment, thereby effectively avoiding the driving failure problem of servo motor 4, and improving the service life and operation precision of the whole servo cylinder driving device.

[0025] Further, two limit protection sliding frames 3 are arranged, the two limit protection sliding frames 3 are fixedly connected with limit baffle 1 through nuts, and the two limit protection sliding frames 3 are arranged in parallel, can be quickly installed and fixed limit protection sliding frame 3, and guarantee that the distance between the two limit protection sliding frames 3 is arranged in parallel and equidistant from screw main body 8. Further, two limit protection sliding frames 3 are arranged, the two limit protection sliding frames 3 are fixedly connected with limit baffle 1 through nuts, and the two limit protection sliding frames 3 are arranged in parallel, can be quickly installed and fixed limit protection sliding frame 3, and guarantee that the distance between the two limit protection sliding frames 3 is arranged in parallel and equidistant from screw main body 8.

[0026] Working principle: in use, the inside of the fixed track 6 is provided with a screw body 8, the lower part of the fixed track 6 is provided with a servo motor 4, the output end of the servo motor 4 is connected with a driving wheel 13 arranged in the inside of the working machine box 7 through a rotating shaft 14, the surface of the driving wheel 13 is connected with a driven wheel 11 through a belt 12, the surface center of the driven wheel 11 is connected with the screw body 8 through a transmission shaft 10, the servo motor 4 is turned on to drive and control the driving wheel 13 to drive and control the screw body 8 to rotate, and then the screw block 9 can be driven and controlled to drive the moving machine table 5 to slide horizontally along the surface of the screw body 8, the surface of the limiting protection slide rack 3 is provided with a sliding sleeve assembly 2, the limiting protection slide rack 3 is connected with the moving machine table 5 through the sliding sleeve assembly 2, the limiting protection slide rack 3 is provided with two, the distance between the two limiting protection slide racks 3 is parallel and equidistant to the screw body 8, the moving machine table 5 stably slides horizontally along the surface of the screw body 8 and the limiting protection slide rack 3, and then the moving machine table 5 can be driven and controlled to slide more stably and safely, so that the driving failure problem of the servo motor 4 is avoided, and the service life and working precision of the whole servo cylinder driving device are improved.

[0027] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] The standard parts used in the present application file can be purchased from the market, the specific connection mode of each part adopts the conventional bolt, rivet, welding and the like in the prior art, and the mechanical, part and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-precision long-life servo electric cylinder comprising a fixed rail (6), characterized in that, The both sides of the fixed track (6) are installed with limiting guard skids (3), the surface of the limiting guard skid (3) is installed with a sliding sleeve assembly (2), the limiting guard skid (3) is connected with a moving platform (5) through the sliding sleeve assembly (2), the inside of the fixed track (6) is installed with a lead screw body (8), the surface of the lead screw body (8) is fixedly connected with the lower end surface of the moving platform (5) through a lead screw sliding block (9).

2. The high-precision long-service-life servo cylinder according to claim 1, characterized in that: One side of the fixed track (6) is installed with a limiting baffle (1), the other side of the fixed track (6) is installed with a working machine box (7).

3. The high-precision long-service-life servo cylinder according to claim 2, characterized in that: The lower side of the fixed track (6) is installed with a servo motor (4), the output end of the servo motor (4) is connected with a driving wheel (13) arranged in the inside of the working machine box (7) through a rotating shaft (14).

4. The high-precision long-service-life servo cylinder according to claim 3, characterized in that: The surface of the driving wheel (13) is connected with a driven wheel (11) through a belt (12).

5. The high-precision long-service-life servo cylinder according to claim 4, characterized in that: The surface center of the driven wheel (11) is connected with the lead screw body (8) through a transmission shaft (10).

6. The high-precision long-service-life servo cylinder of claim 1, wherein: The moving platform (5) stably horizontally slides along the surface of the lead screw body (8) and the limiting guard skid (3).

7. The high-precision long-service-life servo cylinder of claim 1, wherein: The limiting guard skid (3) is provided with two, the two limiting guard skids (3) are fixedly connected with the limiting baffle (1) through nuts, and the limiting guard skids (3) are arranged in parallel.

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