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A macro-micro composite platform driven by servo motor and piezoelectric ceramics

A piezoelectric ceramic drive and servo motor technology, which is applied in the direction of machine/support, supporting machine, mechanical equipment, etc., can solve the problem of unused macro-micro composite, reaching tens of microns, etc.

Active Publication Date: 2021-08-20
GUANGDONG UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the positioning accuracy of the micro-driver represented by the piezoelectric ceramic micro-driver can reach the nanometer level, but the stroke can only reach tens of microns.
In the existing patents, there are macro-micro-composite mechanisms that combine macro-drives and micro-drives. These mechanisms are mostly used in machine tools and precision machining, less used for angular displacement adjustment control, and less used for laser communication bases. At present, most laser-based The block does not use macro-micro composite, but only micro-platform

Method used

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  • A macro-micro composite platform driven by servo motor and piezoelectric ceramics
  • A macro-micro composite platform driven by servo motor and piezoelectric ceramics
  • A macro-micro composite platform driven by servo motor and piezoelectric ceramics

Examples

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Embodiment Construction

[0023] Such as figure 1 and Figure 4 As shown in , an embodiment of the present invention provides a macro-micro composite platform driven by a servo motor 3 and piezoelectric ceramics, which includes a micro-platform 1 , a base 2 and three servo motors 3 . Described micro-platform 1 comprises upper plate 11, three piezoelectric actuators 12 and lower plate 13, and described piezoelectric actuator 12 is piezoelectric ceramic actuator, and the bottom end of described piezoelectric actuator 12 passes through Threaded fasteners are fixed on the lower plate 13, and the connection positions between the piezoelectric actuator 12 and the lower plate 13 are distributed in a triangle, and the telescopic head at the top of the piezoelectric actuator 12 is connected to the The bottom surface of the upper block 11 is connected, and the connection positions of the piezoelectric actuator 12 and the upper block 11 are distributed in a triangle. The piezoelectric actuator 12 controls the i...

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Abstract

The invention relates to a macro-micro composite platform driven by a servo motor and piezoelectric ceramics, which comprises a micro platform, the micro platform includes an upper plate, at least three piezoelectric actuators and a lower plate, the piezoelectric actuator The two ends of the upper plate and the lower plate are respectively connected to the upper plate and the lower plate, and the actuator controls the inclination angle of the upper plate relative to the lower plate by telescopic; a base, the base is located under the micro-platform; At least three servo motors, the servo motors are installed on the base, a connecting rod is provided on one side of the servo motor, the servo motor drives the connecting rod to move, and the connecting rod is far away from the servo motor. One end is hinged with the microplatform. The present invention combines and integrates the macro-drive driven by the servo motor and the micro-drive of the micro-platform into a macro-micro composite precision mechanism integrating macro-micro motion and angle compensation. movements can also be done at the same time.

Description

technical field [0001] The invention relates to the field of high-precision macro-micro composite platforms, in particular to a macro-micro composite platform driven by servo motors and piezoelectric ceramics. Background technique [0002] The improvement of positioning accuracy and motion speed is contradictory, and the large stroke and high precision of the positioning system are also contradictory. At present, the driving and transmission methods with large strokes, such as precision screw drive, linear motor, voice coil motor, etc., they The accuracy is generally limited to millimeters. Piezoelectric ceramic actuator is a new type of micro-displacement device developed in recent years. It has been widely used as a driving element in precision machinery for its advantages of small size, large driving force, high resolution, easy control and small output displacement. application. However, the positioning accuracy of the micro-actuator represented by the piezoelectric ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/04F16M11/12F16M11/14F16M11/18F16M11/38
CPCF16M11/043F16M11/14F16M11/18F16M11/38F16M2200/041F16M2200/066F16M2200/068
Inventor 吴国庆陈桪何育威邱龙陈幼珍何超薛增喜姚劲松
Owner GUANGDONG UNIV OF TECH
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