Direct-drive type feeding device of milling machine

Abstract

The invention relates to a direct-drive type feeding device of a milling machine, comprising a low-speed motor and a motor controller, wherein the low-speed motor is connected with a screw rod of a worktable of the milling machine in a driving mode, the motor controller is connected with the low-speed motor, the low-speed motor is a brushless DC servomotor and comprises a rotor and a stator, an inner ring shaft sleeve of the rotor is directly sleeved on the screw rod of the worktable of the milling machine and connected with the screw rod of the worktable of the milling machine by keys, an outer shell of the rotor extends out of the inner ring shaft sleeve of the rotor to form a cup-shaped rotor, the cup-shaped rotor is covered outside the stator and stopped outside a motor base, and the inner side of the outer shell of the rotor is bonded with a circle of permanent magnet steel. The direct-drive type feeding device directly drives the screw rod of the worktable of the milling machine to rotate by the low-speed motor, does not need any speed reducing device, directly uses the screw rod as a rotor shaft of an external rotor motor so as to lead the shaft output torsion of the motor to directly act on the screw rod of the worktable and has small volume, low noise, large force moment, high rotating speed, convenient installation, flexible and simple operation, attractive appearance, smooth operation, and the like.

Description

technical field [0001] The invention belongs to the field of mechanical processing equipment, in particular to a power device for driving the rotation of a lead screw of a milling machine table. Background technique [0002] There are two ways for the traditional milling machine to realize the movement of the worktable. One is to use the main motor to drive the lead screw of the worktable to rotate through gear transmission to realize the movement of the worktable. This kind of moving method has high manufacturing cost, low moving speed and small adjustable range. The efficiency is low, the maintenance is cumbersome, the supply of accessories is inconvenient, and the production is often delayed. Second, the mechatronics structure with brushed AC and DC motor acceleration and deceleration is placed on the side of the worktable, and the lead screw of the worktable is driven to rotate through gear transmission. Realize table movement. Although this transmission method is more ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a milling machine direct-drive feeding device, which solves the technical problems of low moving speed and small adjustable range of the traditional method; and solves the traditional method of low efficiency, high manufacturing cost, easy Problems of wear and tear and inconvenient maintenance

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