High-precision transmission structure of ball screw

Abstract

The utility model relates to the technical field of mechanical transmission accessories, in particular to a high-precision transmission structure of a ball screw, which comprises a base for connecting the ball screw and a rotating shaft of a servo motor, a servo motor seat and a transmission seat are symmetrically embedded at two ends of the top of the base, and a transmission connecting shaft is coaxially mounted at the center of the transmission seat. The servo motor seat and the transmission seat which are symmetrically embedded at the two ends of the top of the base are respectively used for installing a servo motor and a transmission connecting part, so that the symmetry and the balance of the structure are ensured; a transmission connecting shaft coaxially mounted in the center of the transmission seat is a key component for realizing power transmission; a bearing is mounted in the center of the transmission seat, so that friction during rotation of the transmission connecting shaft can be effectively reduced, and transmission precision and efficiency are improved; the lead screw connecting base and the rotating shaft connecting base at the two ends of the transmission connecting shaft are used for being connected with the ball screw and a rotating shaft of the servo motor respectively, stability and reliability of transmission are guaranteed, and therefore high-precision transmission of the ball screw is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission components technology, specifically a high-precision transmission structure for ball screws. Background Technology

[0002] Ball screw drives, as a crucial component of modern mechanical transmissions, are widely used in CNC machine tools, automated equipment, and precision instruments due to their advantages such as high precision, high efficiency, low friction, and low noise. However, after prolonged use, the transmission accuracy of existing ball screw drives often gradually decreases due to assembly errors and wear between components. For example, traditional connection methods may not guarantee the coaxiality between the ball screw and the drive motor, thus affecting transmission accuracy. Furthermore, some existing structures are cumbersome and time-consuming to install and disassemble the ball screw and motor, and it is difficult to accurately position and adjust critical components during maintenance. Utility Model Content

[0003] The purpose of this invention is to provide a high-precision transmission structure for ball screws, so as to solve the problems of limited precision and inconvenient installation and maintenance of existing ball screw transmission structures mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-precision transmission structure for a ball screw includes a base for connecting the ball screw and a servo motor shaft. The top two ends of the base are symmetrically fitted with a servo motor seat and a transmission seat. A transmission connecting shaft is coaxially mounted at the center of the transmission seat.

[0006] A bearing for fixing the transmission connection shaft is installed at the center of the transmission base;

[0007] The two ends of the transmission connecting shaft are respectively equipped with a screw connecting seat for mounting a ball screw and a shaft connecting seat for mounting a rotating shaft. The ends of the screw connecting seat and the shaft connecting seat are coaxially provided with insertion holes, and the outer walls of the screw connecting seat and the shaft connecting seat are provided with radial fixing screw holes.

[0008] Preferably, the base has fixing holes at each of the four top corners.

[0009] Preferably, the base is equipped with a limiting strip for limiting the position of the servo motor mount and the transmission mount.

[0010] Preferably, the servo motor mount has through holes, and the four corners of the servo motor mount have mounting screw holes for fixing the servo motor.

[0011] Preferably, the transmission connecting shaft and the inner ring of the bearing are integrally formed.

[0012] Preferably, the end of the ball screw is mounted on the screw connector by a fixing bolt.

[0013] Preferably, the end of the rotating shaft is mounted on the rotating shaft connecting seat by fixing bolts.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] 1. In this high-precision transmission structure of the ball screw, the base provides a stable support foundation for the entire transmission structure. The servo motor mount and transmission mount, symmetrically embedded at both ends of the top of the base, are used to install the servo motor and transmission connection components, respectively, ensuring the symmetry and balance of the structure. The transmission connection shaft, coaxially mounted at the center of the transmission mount, is the key component for realizing power transmission. The bearing installed at the center of the transmission mount can effectively reduce friction during the rotation of the transmission connection shaft, improving transmission accuracy and efficiency. The screw connection mount and shaft connection mount at both ends of the transmission connection shaft are used to connect the ball screw and the servo motor shaft, respectively. The insertion holes at their ends facilitate docking with the ball screw and shaft, and the radial fixing screw holes on the outer wall can be used to firmly fix the connection components with bolts or other fasteners, ensuring the stability and reliability of the transmission, thereby realizing the high-precision transmission of the ball screw.

[0016] 2. In the high-precision transmission structure of this ball screw, the through holes on the servo motor mount facilitate the passage of components such as the servo motor shaft, ensuring the continuity of transmission; the mounting screw holes at the four corners of the servo motor mount allow the servo motor to be stably mounted on the servo motor mount, preventing the motor from loosening during operation and ensuring the reliability of transmission.

[0017] 3. In the high-precision transmission structure of this ball screw, the end of the ball screw is installed on the screw connector seat by fixing bolts, and the end of the shaft is installed on the shaft connector seat by fixing bolts. This makes the connection between the ball screw and the shaft and the transmission structure more secure, facilitates installation and disassembly, and ensures the stability and reliability of power transmission during the transmission process. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the left-side structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0022] 10. Base; 11. Fixing hole; 12. Limiting strip;

[0023] 20. Servo motor mount; 21. Through hole; 22. Mounting screw hole;

[0024] 30. Transmission seat; 31. Bearing;

[0025] 40. Transmission connecting shaft; 41. Lead screw connecting seat; 42. Rotary shaft connecting seat; 43. Insertion hole; 44. Fixing screw hole; 45. Fixing bolt;

[0026] 50. Servo motor; 51. Rotary shaft;

[0027] 60. Ball screw. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. 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.

[0029] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component 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.

[0030] High-precision transmission structure of ball screws, such as Figures 1-3As shown, the system includes a base 10 for connecting a ball screw 60 and a servo motor 50 shaft 51. A servo motor mount 20 and a transmission mount 30 are symmetrically embedded at both ends of the top of the base 10. A transmission connecting shaft 40 is coaxially mounted at the center of the transmission mount 30. A bearing 31 for fixing the transmission connecting shaft 40 is mounted at the center of the transmission mount 30. A screw connecting seat 41 for mounting the ball screw 60 and a shaft connecting seat 42 for mounting the shaft 51 are respectively mounted at both ends of the transmission connecting shaft 40. Both the screw connecting seat 41 and the shaft connecting seat 42 have coaxial insertion holes 43 at their ends. Radial fixing screw holes 44 are formed on the outer walls of the screw connecting seat 41 and the shaft connecting seat 42. The base 10 provides a stable support foundation for the entire transmission structure. The servo motor mount 20 and transmission mount 30 are designed to install the servo motor and transmission connection components, respectively, ensuring the symmetry and balance of the structure. The transmission connection shaft 40, coaxially mounted at the center of the transmission mount 30, is a key component for power transmission. The bearing 31 mounted at the center of the transmission mount 30 can effectively reduce friction when the transmission connection shaft 40 rotates, improving transmission accuracy and efficiency. The screw connection mount 41 and shaft connection mount 42 at both ends of the transmission connection shaft 40 are used to connect the ball screw 60 and the shaft 51 of the servo motor 50, respectively. The insertion holes 43 at their ends facilitate docking with the ball screw and shaft, and the radial fixing screw holes 44 on the outer wall can be used to firmly fix the connection components with bolts or other fasteners, ensuring the stability and reliability of the transmission, thereby achieving high-precision transmission of the ball screw.

[0031] Furthermore, fixing holes 11 are provided at the four top corners of the base 10, so that the base can be easily and firmly installed on other equipment or workbench, ensuring the stability of the entire transmission structure.

[0032] Specifically, a limiting strip 12 is installed on the base 10 to limit the servo motor mount 20 and the transmission mount 30, thereby limiting their positions on the base to ensure the assembly accuracy of the transmission structure and improve the accuracy of the transmission.

[0033] The servo motor mount 20 has through holes 21 and mounting screw holes 22 for fixing the servo motor 50 at its four corners. The through holes 21 on the servo motor mount 20 allow the servo motor shaft and other components to pass through, ensuring the continuity of transmission. The mounting screw holes 22 at the four corners of the servo motor mount 20 allow the servo motor to be stably mounted on the servo motor mount, preventing the motor from loosening during operation and ensuring the reliability of transmission.

[0034] It is worth noting that the inner ring of the transmission connecting shaft 40 and the bearing 31 are integrally formed, which makes the fit between the transmission connecting shaft and the bearing tighter, reduces assembly errors, improves the accuracy and stability of transmission, and enhances the overall integrity and durability of the structure.

[0035] In addition, the end of the ball screw 60 is mounted on the screw connector 41 by fixing bolts 45, and the end of the shaft 51 is mounted on the shaft connector 42 by fixing bolts 45, which makes the connection between the ball screw and the shaft and the transmission structure more secure, facilitates installation and disassembly, and ensures the stability and reliability of power transmission during the transmission process.

[0036] The working principle of the high-precision transmission structure of this ball screw:

[0037] First, fix the base 10 to the required working position or equipment through the fixing holes 11 at its four top corners to ensure that the base is stable; then, place the servo motor 50 on the servo motor base 20, and use the mounting screw holes 22 at the four top corners of the servo motor base 20 to firmly install the servo motor 50 with bolts, and the rotating shaft 51 of the servo motor passes through the through hole 21 on the servo motor base 20.

[0038] Next, the transmission connecting shaft 40 is installed at the center of the transmission seat 30. Since the transmission connecting shaft 40 and the inner ring of the bearing 31 are integrally formed, it can be directly placed in the bearing 31 to ensure that the transmission connecting shaft 40 can rotate smoothly. Then, the end of the ball screw 60 is inserted into the insertion hole 43 of the screw connecting seat 41, and the ball screw 60 is firmly fixed with the fixing bolt 45 through the fixing screw hole 44 on the outer wall of the screw connecting seat 41. Similarly, the rotating shaft 51 of the servo motor 50 is inserted into the insertion hole 43 of the rotating shaft connecting seat 42, and the rotating shaft 51 is fixed with the fixing bolt 45 through the fixing screw hole 44 on the outer wall of the rotating shaft connecting seat 42.

[0039] Finally, the servo motor 50 is started, and the servo motor shaft 51 rotates, which drives the ball screw 60 to rotate through the transmission connection shaft 40, thereby achieving high-precision transmission.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision transmission structure for a ball screw, comprising a base (10) for connecting a ball screw (60) and a servo motor (50) shaft (51), characterized in that: The base (10) has a servo motor mount (20) and a transmission mount (30) symmetrically embedded at both ends of its top. A transmission connecting shaft (40) is coaxially mounted at the center of the transmission mount (30). A bearing (31) for fixing the transmission connecting shaft (40) is installed at the center of the transmission seat (30). The transmission connecting shaft (40) is equipped with a screw connecting seat (41) for mounting a ball screw (60) and a shaft connecting seat (42) for mounting a rotating shaft (51) at both ends. The ends of the screw connecting seat (41) and the shaft connecting seat (42) are coaxially provided with insertion holes (43). The outer walls of the screw connecting seat (41) and the shaft connecting seat (42) are provided with radial fixing screw holes (44).

2. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: Fixing holes (11) are provided at the four top corners of the base (10).

3. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: The base (10) is equipped with a limiting strip (12) for limiting the servo motor mount (20) and the transmission mount (30).

4. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: The servo motor mount (20) has a through hole (21) and mounting screw holes (22) for fixing the servo motor (50) are provided at the four corners of the servo motor mount (20).

5. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: The transmission connecting shaft (40) and the inner ring of the bearing (31) are integrally formed.

6. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: The end of the ball screw (60) is mounted on the screw connector (41) by a fixing bolt (45).

7. The high-precision transmission structure of the ball screw according to claim 1, characterized in that: The end of the shaft (51) is mounted on the shaft connector (42) by a fixing bolt (45).

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