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Direct drive nut turning device

A technology of rotating device and nut, applied in the field of machine tools, can solve the problems of insufficient precision and rigidity of the transmission chain, and achieve the effect of improving dynamic performance and simplifying the structure of machine tools

Inactive Publication Date: 2012-07-04
WEIHAI HUADONG AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, simplify the structure of the machine tool, and improve the rigidity, dynamic performance, motion speed and machining accuracy of the machine tool, the invention provides a direct-drive screw nut rotating device, which solves the problem of toothed belts, gears, etc. due to the transmission structure. The problem of insufficient precision and rigidity of the transmission chain caused by the intermediate link can effectively improve the performance of the machine tool

Method used

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Examples

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Embodiment Construction

[0013] figure 1 , figure 2 As shown, the screw mandrel 2 of the present invention passes through the hollow torque motor 12, the rotating nut 3 is rigidly coupled on the screw mandrel 2, the bearing 9 is installed on the rotary bushing 11, and the rotary bushing 11 is fixed to the rotor of the hollow torque motor 12 Connection, the bearing 9 is used to bear the axial load to ensure the accuracy of axial movement, the connecting body 7 is connected with the rotary sleeve 11 through the hexagon socket head screw 8, and the inner ring of the bearing 9 is fixed; the rotating nut 3 on the screw rod 2 passes through the inner The hexagonal screw 4 is connected with the connecting body 7; the connecting flange 6 is installed on the outer ring of the two-way thrust ball bearing 9, and is connected with the bearing end cover 10 and the shell of the hollow shaft torque motor 12 through the inner hexagonal screw 13, and the bearing 9 The outer ring is fixed; the socket head cap screw 5...

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Abstract

The invention relates to a direct drive nut turning device, which belongs to the field of a machine tool. The direct drive nut turning device is provided with a hallow shaft moment motor, and is characterized in that: a lead screw penetrates through the hollow shaft moment motor; a rotor of the hollow shaft moment motor is integrally connected with a turning nut; the turning nut is rigidly coupled to the lead screw; a shell of the hollow shaft moment motor is fixedly connected with a moving component; and the nut is directly driven by the hollow shaft moment motor to turn, so that liner motion of the moving component along the lead screw is realized. According to the direct drive nut turning device, the hollow shaft moment motor is rigidly coupled to the turning nut, so that the structure of the machine tool is simplified, and the dynamic performance, the movement speed and the machining accuracy of the machine tool are improved.

Description

technical field [0001] The invention relates to the field of machine tools, in particular to a direct-drive screw nut rotary transmission device applied to the movement shaft of the machine tool to drive the movement of moving parts. Background technique [0002] As we all know, in the traditional screw drive structure of machine tools, the motor and the screw or the motor and the nut are connected through couplings, sleeves, toothed belts, gears and other components to convert the rotational motion of the motor into wire The linear motion of the female on the screw rod drives the moving parts to move. The transmission structure must pass through intermediate links, and the accuracy and rigidity of the transmission chain are difficult to guarantee, which affects the performance of the machine tool. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, simplify the structure of the machine tool, and improve the rigidity, dynamic perfor...

Claims

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Application Information

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IPC IPC(8): B23Q5/40B23Q5/54
Inventor 汤世贤邱玉良邹雪巍
Owner WEIHAI HUADONG AUTOMATION
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