Ball screw and motor integrated driving electric cylinder

Abstract

The invention discloses a ball screw and motor integrated driving electric cylinder. The ball screw and motor integrated driving electric cylinder comprises a linear guide portion, a sliding seat anda servo motor structure, wherein an embedded guide track structure is embedded in the linear guide portion, a screw nut mounting hole is formed in one side of the sliding seat, a ball screw nut is installed in the screw nut mounting hole, a ball screw is installed in the ball screw nut through a steel ball in a rolling mode, and the two ends of the ball screw extend out of the screw nut mounting hole. According to the ball screw and motor integrated driving electric cylinder, the problem that an electric sliding table base, a linear guide track, a sliding block, a ball screw and a servo motorin the prior art are assembled in a split manner is solved, the boundary dimension of the electric cylinder is greatly reduced, the overall length of the electric cylinder is reduced, and meanwhile, the straightness and the walking parallelism of the linear guide track are improved; and due to the fact that the servo motor and the ball screw are integrated, the rigidity of the servo motor is improved and the response speed of the servo motor is increased, and higher acceleration and response speed can be achieved by ball screw transmission.

Description

technical field [0001] The invention relates to the technical field of high-precision linear transmission, in particular to a driving electric cylinder integrated with a ball screw and a motor. Background technique [0002] Electric cylinders are linear actuators driven by servo or stepper motors. The electric cylinder generally consists of a servo motor and a linear guide transmission mechanism. Commonly used transmission methods include ball screw drive, synchronous belt drive, rack drive and other styles. The electric cylinder is an indispensable motion execution unit in automation equipment. Electric cylinders are also often referred to as electric slides, electric actuators, servo linear modules, single-axis robots, etc. [0003] The existing ball screw type electric slide table is usually structurally designed and manufactured with the linear guide transmission part driven by the ball screw and the servo motor part as two independent parts. The linear guide part an...

AI Technical Summary

Problems solved by technology

When the synchronous belt connection is used, although the length dimension can be reduced, the disadvantage is that the transmission accuracy and response speed of the synchronous belt are lower than that of the coupling, and the side installation of the motor also increases the width and installation size of the electric cylinder.

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