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Hybrid drive semi-closed loop precision positioning system

A precise positioning and hybrid drive technology, applied in control systems, electric components, generators/motors, etc., can solve the problems of short service life of ultrasonic motors, and achieve the effect of overcoming short service life, high resolution and high precision

Inactive Publication Date: 2012-02-08
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a semi-closed-loop precision positioning system with a reasonable structure and overcome the shortcoming of the short life of the ultrasonic motor

Method used

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  • Hybrid drive semi-closed loop precision positioning system
  • Hybrid drive semi-closed loop precision positioning system
  • Hybrid drive semi-closed loop precision positioning system

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Embodiment Construction

[0026] A mixed-drive semi-closed-loop precision positioning system, comprising a slide table base 1, a linear slide guide rail 2 mounted on the slide table base, a slide table 3 mounted on the linear slide guide rail, drive slide tables are respectively arranged on the left and right sides of the linear slide guide rail on the slide guide rail The moving ultrasonic motor 4 and the stepper motor 5 are connected with the angular position measuring device 6 .

[0027] The ultrasonic motor is connected to the ball screw 8 connected to the slide table through the first elastic diaphragm coupling 7, and the ball nut 11 is mounted on the ball screw; The shaft coupling 10 is connected, the shaft coupling is connected with the ball nut 11, the ball nut is fixedly connected with the nut seat through two angular contact bearings 12 with the same height of the inner and outer rings, the nut seat is fixedly connected with the sliding table 3, and is positioned by the positioning pin.

[00...

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Abstract

The invention discloses a combined drive semi-closed loop precision positioning system for double-motor undisturbed switchover, comprising a sliding table base, wherein a linear slide rail is mounted on the sliding table base and is provided with a sliding table, the left side and the right side of the linear slide rail are respectively provided with an ultrasound wave motor driving the sliding table to move on the slide rail and a stepping motor, and the ultrasound wave motor is connected with a corner measurement device. The invention has reasonable structure, overcomes the disadvantage of short service life of the ultrasound wave motor and can realize double-motor undisturbed switchover during precision positioning process.

Description

Technical field: [0001] The invention relates to a semi-closed-loop precision positioning system, in particular to a semi-closed-loop precision positioning system of a hybrid driving device and a novel displacement detection device. Background technique: [0002] Precision positioning system is one of the key technologies for precision machining and ultra-precision machining. In order to meet the application requirements, the precision positioning system must have the performance of high frequency response, large stroke and high precision. In industrial production, to achieve linear precision movement, stepper motors are often used to drive through screw rods. However, the subdivision driving accuracy of the stepping motor depends on factors such as the subdivision current control accuracy. The larger the subdivision number, the more difficult it is to control the accuracy, and the cost of the driver is high; There is very serious high-frequency electromagnetic interferenc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/00H02P5/00H02K11/21H02N2/06
Inventor 吴晓华亮堵俊顾菊平羌予践吴晓新李智张齐黄建斌
Owner NANTONG UNIVERSITY
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