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CN-224229192-U - High-precision transmission structure of ball screw

CN224229192UCN 224229192 UCN224229192 UCN 224229192UCN-224229192-U

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 with a rotating shaft of a servo motor, wherein 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 arranged at the center of the transmission seat. The servo motor seat and the transmission seat are symmetrically embedded at two ends of the top of the base and are respectively used for installing a servo motor and transmission connecting parts to ensure the symmetry and balance of the structure, the transmission connecting shaft coaxially installed at the center of the transmission seat is a key part for realizing power transmission, the bearing installed at the center of the transmission seat can effectively reduce friction when the transmission connecting shaft rotates and improve transmission precision and efficiency, and the screw rod connecting seat and the rotating shaft connecting seat at two ends of the transmission connecting shaft are respectively used for connecting a ball screw and a rotating shaft of the servo motor to ensure the stability and reliability of transmission, so that high-precision transmission of the ball screw is realized.

Inventors

  • MA XINZHI
  • Liu Lianyan
  • ZHANG YANG
  • LI SIYANG
  • GUO WENKE

Assignees

  • 广东北田智能科技有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (7)

  1. 1. The high-precision transmission structure of the ball screw comprises a base (10) for connecting the ball screw (60) and a rotating shaft (51) of a servo motor (50), and is characterized in that a servo motor seat (20) and a transmission seat (30) are symmetrically embedded at two ends of the top of the base (10), and a transmission connecting shaft (40) is coaxially arranged at the center of the transmission seat (30); A bearing (31) for fixing the transmission connecting shaft (40) is arranged at the center of the transmission seat (30); Screw rod connecting seat (41) for installing ball screw (60) and pivot connecting seat (42) for installing pivot (51) are installed respectively at the both ends of transmission connecting axle (40), spliced eye (43) have all been seted up coaxially to the tip of screw rod connecting seat (41) and pivot connecting seat (42), radial fixed screw (44) have been seted up to the outer wall of screw rod connecting seat (41) and pivot connecting seat (42).
  2. 2. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the four top corners of the top of the base (10) are provided with fixing holes (11).
  3. 3. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the base (10) is provided with a limiting strip (12) for limiting the servo motor seat (20) and the transmission seat (30).
  4. 4. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the servo motor seat (20) is provided with a through hole (21), and four vertex angles of the servo motor seat (20) are provided with mounting screw holes (22) for fixing the servo motor (50).
  5. 5. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the transmission connecting shaft (40) and the inner ring of the bearing (31) are integrally formed.
  6. 6. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the end part of the ball screw (60) is mounted on the screw connecting seat (41) through a fixing bolt (45).
  7. 7. The high-precision transmission structure of the ball screw as claimed in claim 1, wherein the end part of the rotating shaft (51) is mounted on the rotating shaft connecting seat (42) through a fixing bolt (45).

Description

High-precision transmission structure of ball screw Technical Field The utility model relates to the technical field of mechanical transmission accessories, in particular to a high-precision transmission structure of a ball screw. Background The ball screw transmission structure is used as an important component in modern mechanical transmission, and is widely applied to the fields of numerical control machine tools, automation equipment, precise instruments and the like due to the advantages of high precision, high efficiency, low friction, low noise and the like. After the conventional ball screw transmission structure is used for a long time, transmission precision is often gradually reduced due to factors such as assembly errors and abrasion among all parts. For example, the coaxiality between the ball screw and the driving motor may not be ensured by the traditional connection mode, so that the transmission precision is affected, part of the existing structure is complicated in mounting and dismounting the ball screw, the motor and other components, time and labor are consumed, and accurate positioning and adjustment of key components are difficult in the maintenance process. Disclosure of utility model The utility model aims to provide a high-precision transmission structure of a ball screw so as to solve the problems that the precision of the conventional ball screw transmission structure is limited and the installation and maintenance are inconvenient in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: The high-precision transmission structure of the ball screw comprises a base for connecting the ball screw with a rotating shaft of a servo motor, wherein 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 arranged at the center of the transmission seat; A bearing for fixing the transmission connecting shaft is arranged at the center of the transmission seat; The two ends of the transmission connecting shaft are respectively provided with a screw rod connecting seat for installing a ball screw rod and a rotating shaft connecting seat for installing a rotating shaft, the end parts of the screw rod connecting seat and the rotating shaft connecting seat are coaxially provided with inserting holes, and the outer walls of the screw rod connecting seat and the rotating shaft connecting seat are provided with radial fixing screw holes. Preferably, fixing holes are formed in four top corners of the base. Preferably, a limiting strip for limiting the servo motor seat and the transmission seat is arranged on the base. Preferably, through holes are formed in the servo motor seat, and mounting screw holes for fixing the servo motor are formed in four vertex angles of the servo motor seat. Preferably, the transmission connecting shaft and the inner ring of the bearing are of an integrated structure. Preferably, the end part of the ball screw is mounted on the screw connecting seat through a fixing bolt. Preferably, the end part of the rotating shaft is mounted on the rotating shaft connecting seat through a fixing bolt. Compared with the prior art, the utility model has the beneficial effects that: 1. The high-precision transmission structure of the ball screw provides a stable supporting foundation for the whole transmission structure through the arranged base, 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 transmission connecting parts, symmetry and balance of the structure are guaranteed, the transmission connecting shaft coaxially installed at the center of the transmission seat is a key part for realizing power transmission, the bearing installed at the center of the transmission seat can effectively reduce friction when the transmission connecting shaft rotates, transmission precision and efficiency are improved, the screw rod connecting seats and the rotating shaft connecting seats at the two ends of the transmission connecting shaft are respectively used for connecting the ball screw and the rotating shaft of the servo motor, the insertion Kong Fangbian arranged at the end parts of the screw rod connecting seats are in butt joint with the ball screw and the rotating shaft, and the radial fixing screw holes formed in the outer wall can firmly fix the connecting parts through bolts and other fasteners, so that the stability and reliability of transmission are ensured, and the high-precision transmission of the ball screw is realized. 2. In the high-precision transmission structure of the ball screw, through the through holes in the servo motor seat, the rotating shaft and other parts of the servo motor are convenient to penetrate, transmission continuity is guaranteed, and the servo motor can be stably insta