Compact-type precise piezoelectric stick-slip lifting platform and driving method thereof

A lifting platform, compact technology, applied in the field of compact precision piezoelectric stick-slip lifting platform and its drive, can solve the problems of harsh working environment, limited working stroke, low positioning accuracy, etc., to improve mechanical output characteristics, The effect of reducing frictional resistance and simple and compact structure

Active Publication Date: 2018-05-29
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of limited working stroke, low positioning accuracy, serious friction and wear, demanding working environment, difficulty in miniaturization and complicated control existing in the existing driving platform, the present invention discloses a compact precision piezoelectric stick-slip lifting platform

Method used

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  • Compact-type precise piezoelectric stick-slip lifting platform and driving method thereof
  • Compact-type precise piezoelectric stick-slip lifting platform and driving method thereof
  • Compact-type precise piezoelectric stick-slip lifting platform and driving method thereof

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specific Embodiment approach 1

[0041] Specific implementation mode one: combine Figure 1~Figure 10 This embodiment will be described. This implementation mode provides a specific implementation scheme of a compact precision piezoelectric stick-slip lifting platform that realizes double-stacked single-drive foot stator assemblies. The compact precision piezoelectric stick-slip elevating platform of the double-stacked single-drive foot stator assembly includes a limit table 1, a displacement table 2, a double row cross roller guide rail 3, a fixed base 4, a drive stator 5, Thread pair 6, end cover 7, end cover mounting screws 8, stator mounting screws 9, limit table screws 10, displacement table screws 11 and guide rail mounting bolts 12; the limit table 1 is installed on the fixed On the base 4, the displacement stage 2 is installed and fixed on the double row cross roller guide rail 3 through the displacement stage screw 11, the double row cross roller guide rail 3 is installed on the fixed base 4 through...

specific Embodiment approach 2

[0048] Specific implementation mode two: combination Figure 11~Figure 12 This embodiment will be described. This embodiment provides a compact and precise piezoelectric stick-slip lifting platform realized by a diamond-shaped stator assembly. Its structural composition and connection method are the same as those in the first embodiment, except that the specific structure of the flexible hinge mechanism 5-1 in the driving stator 5 is different.

[0049] The flexible hinge mechanism 5-1 is made of 5052, 6061 or 7075 aluminum alloy material, and the flexible hinge mechanism 5-1 adopts an asymmetric rhombic structure hinge. The flexible hinge mechanism 5-1 is provided with a driving foot 5-1-1, an end beam 5-1-3, a stator mounting hole 5-1-4, a base screw mounting hole 5-1-6, a rigid folding beam Ⅰ 5-1-20, rigid polybeam Ⅱ 5-1-21, rigid polybeam Ⅲ 5-1-22, rigid polybeam Ⅳ 5-1-23, straight round hinge Ⅷ 5-1-24, straight round Hinge VII 5-1-25, straight round hinge X5-1-26 and s...

specific Embodiment approach 3

[0050] Specific implementation mode three: combination Figure 13~Figure 14 This embodiment will be described. This embodiment provides a compact precision piezoelectric stick-slip lifting platform realized by an inclined ladder stator assembly. Its structural composition and connection method are the same as those in the first embodiment, except that the specific structure of the flexible hinge mechanism 5-1 in the driving stator 5 is different.

[0051] The flexible hinge mechanism 5-1 adopts a flexible hinge with an inclined ladder frame structure, and the flexible hinge mechanism 5-1 adopts 5052 aluminum alloy, 6061 aluminum alloy, 7075 aluminum alloy, Ti-35A titanium alloy or Ti-13 titanium Alloy materials. The flexible hinge mechanism 5-1 is provided with a stator mounting hole 5-1-4, and the flexible hinge mechanism 5-1 is fixed with the stator mounting threaded hole 4-6 through the stator mounting screw 9; the flexible hinge mechanism 5-1 is provided with There are ...

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Abstract

The invention relates to a compact-type precise piezoelectric stick-slip lifting platform. By the compact-type precise piezoelectric stick-slip lifting platform, the problems of relatively low positioning accuracy and severe working environment requirement of a current electromagnetic motor-type driving platform and small range, serious wear, control complexity and difficulty in integral frictionforce control are solved. The lifting platform comprises a limitation table, a displacement table, dual-line cross roller guide rails, a fixed base, a driving stator, a pair of threads, an end cover,an end cover installation screw, a stator installation screw, a limitation table screw, a displacement table screw and a guide rail installation screw. The compact-type precise piezoelectric stick-slip lifting platform proposed by the invention has the advantages of simple and compact structure, high positioning accuracy, large range and the like and is convenient to control; and moreover, integral friction force control of the precise piezoelectric stick-slip lifting platform during the whole driving process is achieved, the mechanical output characteristic of the platform is improved, the positioning accuracy under an open-ring condition can reach nanoscale, and the compact-type precise piezoelectric stick-slip lifting platform can be widely applied to the technical field of precise driving and positioning.

Description

technical field [0001] The invention relates to a compact precision piezoelectric stick-slip lifting platform and a driving method thereof, belonging to the technical field of precision driving and positioning. Background technique [0002] Piezoelectric drive technology is a new drive method that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy. Compared with traditional electromagnetic drive methods, it has low speed, high torque (thrust), high torque density, and flexible design. , compact structure, high positioning accuracy, fast response, power-off self-locking, no electromagnetic interference and no electromagnetic interference, no need to use bearings and lubrication, etc., in robot joint drive, precision instrumentation, ultra-precision machining, aerospace and Life science and other fields have broad application prospects, and are one of the hot spots in the field of precision special drive technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/12H02N2/14
CPCH02N2/12H02N2/14H02N2/142
Inventor 程廷海李义康卢晓晖何猛高琪陈鹏飞
Owner CHANGCHUN UNIV OF TECH
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